Top 100 US Patents in Display Devices (LCD, etc)
section g - physics > optics > devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; techniques or procedures for the operation thereof; frequency-changing; non-linear optics; optical logic elements; optical analogue/digital converters
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US5583347 (A), filed
Mon Mar 13 00:00:00 CST 1995
, published
Tue Dec 10 00:00:00 CST 1996
- SEIKO EPSON CORP
An active matrix panel including a matrix of driving electrodes couples through thin film transistor switches to a corresponding source line and gate line and at least one of a driver circuit including complementary thin film transistors for driving the source...
US5838399 (A), filed
Fri Sep 05 00:00:00 CDT 1997
, published
Tue Nov 17 00:00:00 CST 1998
- HITACHI LTD
There are disclosed various types of TFT active matrix liquid crystal display devices in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling...
US5952676 (A), filed
Fri Jun 06 00:00:00 CDT 1997
, published
Tue Sep 14 00:00:00 CDT 1999
- SEMICONDUCTOR ENERGY LAB
An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable...
US5130703 (A), filed
Fri Jun 30 00:00:00 CDT 1989
, published
Tue Jul 14 00:00:00 CDT 1992
- POQET COMPUTER CORP
A structure and method for controlling a liquid crystal display takes advantage of the sharp reflectance change over a small voltage change for new liquid crystal display materials, applying ON and OFF pixel voltages very close to the transition voltage of the...
USRE36161 (E), filed
Mon Jul 07 00:00:00 CDT 1997
, published
Tue Mar 23 00:00:00 CST 1999
- CANON KK
A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these...
US4364110 (A), filed
Wed Jun 05 00:00:00 CDT 1974
, published
Tue Dec 14 00:00:00 CST 1982
- HYATT GILBERT P
An improved machine control system having a display for operator interaction is provided. Feedback machine control is provided with an integrated circuit computer. Display of edges having rotation, translation, scaling, and smoothing is also provided.
US5132820 (A), filed
Fri Jun 10 00:00:00 CDT 1988
, published
Tue Jul 21 00:00:00 CDT 1992
- HITACHI LTD
There are disclosed various types of TFT active matrix liquid crystal display devices in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling...
US5946062 (A), filed
Wed Jul 22 00:00:00 CDT 1998
, published
Tue Aug 31 00:00:00 CDT 1999
- HITACHI LTD
Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel...
US6580473 (B2), filed
Tue Apr 10 00:00:00 CDT 2001
, published
Tue Jun 17 00:00:00 CDT 2003
- SAMSUNG ELECTRONICS CO LTD
Active matrix display devices having improved opening and contrast ratios utilize light blocking lines to improve display contrast ratios yet position the light blocking lines on the same level of metallization as the gate lines to thereby limit parasitic...
US6493057 (B1), filed
Fri Jul 02 00:00:00 CDT 1999
, published
Tue Dec 10 00:00:00 CST 2002
- SEMICONDUCTOR ENERGY LAB
An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable...
US6057896 (A), filed
Wed Nov 26 00:00:00 CST 1997
, published
Tue May 02 00:00:00 CDT 2000
- SAMSUNG ELECTRONICS CO LTD
A passivation layer is formed by coating a flowable insulating material on the substrate where a thin film transistor and a storage capacitor electrode, and a pixel electrode is formed on the passivation layer. A portion of the passivation layer is etched...
US4840463 (A), filed
Thu Jul 28 00:00:00 CDT 1988
, published
Tue Jun 20 00:00:00 CDT 1989
- LAGERWALL SVEN T
A liquid crystal device including a ferroelectric liquid crystal disposed between plates treated to enforce a particular ferroelectric molecular orientation to the plates. The devices employ alone or in combination non-planar boundary conditions, polar...
US5101289 (A), filed
Mon Oct 02 00:00:00 CDT 1989
, published
Tue Mar 31 00:00:00 CST 1992
- CANON KK
US5282121 (A), filed
Tue Apr 30 00:00:00 CDT 1991
, published
Tue Jan 25 00:00:00 CST 1994
- VARI LITE INC
A high intensity light projector for stage, architectural and similar applications includes a controllable image quality projection gate providing advanced visual effects. The projection gate, capable of selectively scattering or transmitting incident light,...
US5822021 (A), filed
Tue May 14 00:00:00 CDT 1996
, published
Tue Oct 13 00:00:00 CDT 1998
- COLORLINK INC
The present invention relates to a liquid crystal display system in which a pair of transmission displays are used with a light source, and coupling optics to provide a small, high resolution optically efficient color imaging system. A preferred embodiment of...
US7042643 (B2), filed
Tue Feb 19 00:00:00 CST 2002
, published
Tue May 09 00:00:00 CDT 2006
- IDC LLC
An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical...
US6486497 (B2), filed
Mon Apr 14 00:00:00 CDT 1997
, published
Tue Nov 26 00:00:00 CST 2002
- SEIKO EPSON CORP
An active matrix panel including a matrix of driving electrodes couples through thin film transistor switches to a corresponding source line and gate line and at least one of a driver circuit including complementary thin film transistors for driving the source...
US6195140 (B1), filed
Mon Jul 27 00:00:00 CDT 1998
, published
Tue Feb 27 00:00:00 CST 2001
- SHARP KK
A liquid crystal display device according to the present invention includes a first substrate, a second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes: a plurality of gate...
US4470667 (A), filed
Mon Oct 31 00:00:00 CST 1983
, published
Tue Sep 11 00:00:00 CDT 1984
- CANON KK
A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these...
US4600274 (A), filed
Fri Mar 04 00:00:00 CST 1983
, published
Tue Jul 15 00:00:00 CDT 1986
- SEIKO EPSON CORP
A multi-color liquid crystal display includes liquid crystal micro-shutters which open and close color filters arranged as dots in a mosaic or stripe pattern. Fine and clear color image display and color graphic display are realized in the device wherein the...
US6294796 (B1), filed
Tue Oct 11 00:00:00 CDT 1994
, published
Tue Sep 25 00:00:00 CDT 2001
- SEIKO EPSON CORP
Thin film transistor including polycrystalline silicon or amorphous silicon thin film channel regions having a thickness of between about 100 Å and 2500 Å which are thinner than at least a portion of the source and drain regions and active matrix assemblies...
US6797548 (B2), filed
Tue Dec 11 00:00:00 CST 2001
, published
Tue Sep 28 00:00:00 CDT 2004
- SEMICONDUCTOR ENERGY LAB CO IN
A method of fabricating silicon TFTs (thin-film transistors) is disclosed. The method comprises a crystallization step by laser irradiation effected after the completion of the device structure. First, amorphous silicon TFTs are fabricated. In each of the...
US6998282 (B1), filed
Tue Jan 27 00:00:00 CST 1998
, published
Tue Feb 14 00:00:00 CST 2006
- SEMICONDUCTOR ENERGY LAB
A method of manufacturing a semiconductor device, comprises the steps of: forming a first insulating film on a first substrate; forming a second insulating film on the first insulating film; forming an amorphous silicon film on the second insulating film;...
US4761058 (A), filed
Mon Dec 23 00:00:00 CST 1985
, published
Tue Aug 02 00:00:00 CDT 1988
- CANON KK
A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these...
US5032883 (A), filed
Wed Sep 07 00:00:00 CDT 1988
, published
Tue Jul 16 00:00:00 CDT 1991
- CASIO COMPUTER CO LTD
A TFT of the present invention includes a transparent insulative substrate, a gate electrode formed on the substrate, a gate insulating film formed on at least the gate electrode, a semiconductor film formed at a position on the gate insulating film correspond...
US5196141 (A), filed
Mon Oct 22 00:00:00 CDT 1990
, published
Tue Mar 23 00:00:00 CST 1993
- MERCK PATENT GMBH
PCT No. PCT/EP90/01351 Sec. 371 Date Oct. 22, 1990 Sec. 102(e) Date Oct. 22, 1990 PCT Filed Aug. 17, 1990 PCT Pub. No. WO91/02722 PCT Pub. Date Mar. 7, 1991.The invention relates to 5-oxy-2-phenylpyridines of the formula I IMAGE I in which m and n,...
US6338807 (B1), filed
Fri Jan 24 00:00:00 CST 1997
, published
Tue Jan 15 00:00:00 CST 2002
- REVEO INC
In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient...
US6403985 (B1), filed
Fri Dec 23 00:00:00 CST 1994
, published
Tue Jun 11 00:00:00 CDT 2002
- KOPIN CORP
Light emitting diodes (LEDs) and LED bars and LED arrays formed of semiconductive material, such as III-V, and particularly AlGaAs/CaAs material, are formed in very thin structures using organometallic vapor deposition (OMCVD). Semiconductor p-n junctions are...
US5598285 (A), filed
Mon Sep 20 00:00:00 CDT 1993
, published
Tue Jan 28 00:00:00 CST 1997
- HITACHI LTD
A liquid crystal display device has a plurality of pixel elements, the optical transmissivity of which is varied by suitable electrical signals. The liquid crystal display device has electrodes which apply electric fields to a liquid crystal layer, the...
US5905555 (A), filed
Fri Dec 13 00:00:00 CST 1996
, published
Tue May 18 00:00:00 CDT 1999
- SEMICONDUCTOR ENERGY LAB
A grey tone display and a driving method are described. The display comprises a light influencing layer, an electrode pad located adjacent to the layer at one side of the layer in order to define a pixel in the layer, an n-channel field effect transistors...
US4487481 (A), filed
Fri Mar 20 00:00:00 CST 1981
, published
Tue Dec 11 00:00:00 CST 1984
- EPSON CORP
A liquid crystal display panel having a backlight for providing high brightness, uniformity of illumination intensity, small thickness, high efficiency and which can be manufactured at a low cost. The display device includes a liquid crystal display panel, a...
US4653862 (A), filed
Mon Jan 13 00:00:00 CST 1986
, published
Tue Mar 31 00:00:00 CST 1987
- SEIKO EPSON CORP
A multi-color liquid crystal display includes liquid crystal micro-shutters which open and close color filters arranged as dots in a mosaic or stripe pattern. Fine and clear color image display and color graphic display are realized in the device wherein the...
US7307020 (B2), filed
Thu Dec 18 00:00:00 CST 2003
, published
Tue Dec 11 00:00:00 CST 2007
- ELM TECHNOLOGY CORP
General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a...
US5354695 (A), filed
Wed Apr 08 00:00:00 CDT 1992
, published
Tue Oct 11 00:00:00 CDT 1994
- LEEDY GLENN J
General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a...
US4685771 (A), filed
Thu May 22 00:00:00 CDT 1986
, published
Tue Aug 11 00:00:00 CDT 1987
- ZUMER SLOBODAN
The invention provides a new liquid crystal display material prepared by the phase separation of a homogeneous solution of liquid crystal and thermoplastic resin to create in situ microdroplets of liquid crystal within a set transparent resin matrix. The new...
US4121284 (A), filed
Mon Sep 11 00:00:00 CDT 1972
, published
Tue Oct 17 00:00:00 CDT 1978
- HYATT GILBERT P
A system is provided for operator interaction having a computer for enhanced operation. The computer performs switch debounce operations under program control and performs display refresh operations under program control. The computer is a fully integrated...
US4813767 (A), filed
Wed Aug 19 00:00:00 CDT 1987
, published
Tue Mar 21 00:00:00 CST 1989
- LAGERWALL SVEN T
A liquid crystal device including a ferroelectric liquid crystal disposed between plates treated to enforce a particular ferroelectric molecular orientation to the plates. The devices employ alone or in combination non-planar boundary conditions, polar...
US6313889 (B1), filed
Fri Nov 01 00:00:00 CST 1996
, published
Tue Nov 06 00:00:00 CST 2001
- SAMSUNG ELECTRONICS CO LTD
A matrix-type display device having a repair layout, particularly, a matrix-type display device which can be repaired in a pixel unit, is provided. Two or more of signal lines such as scanning signal lines, displaying signal lines and auxiliary signal lines...
US5067021 (A), filed
Thu Jul 21 00:00:00 CDT 1988
, published
Tue Nov 19 00:00:00 CST 1991
- BRODY THOMAS P
US4606611 (A), filed
Mon Mar 21 00:00:00 CST 1983
, published
Tue Aug 19 00:00:00 CDT 1986
- MANCHESTER R D PARTNERSHIP
In the present invention encapsulated liquid crystal material in a support medium illuminated from the viewing side or direction will appear bright or white relative to background when in distorted alignment, e.g. in the absence of an electric field. Incident...
US6285343 (B1), filed
Wed Oct 19 00:00:00 CDT 1994
, published
Tue Sep 04 00:00:00 CDT 2001
- SAMSUNG ELECTRONICS CO LTD
A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there...
US6323528 (B1), filed
Wed Jul 29 00:00:00 CDT 1998
, published
Tue Nov 27 00:00:00 CST 2001
- SEMICONDUCTOR ENERGY LAB
An insulated gate field effect semiconductor device comprising a substrate having provided thereon a thin-film structured insulated gate field effect semiconductor device, said device being characterized by that it comprises a metal gate electrode and at least...
US6597415 (B2), filed
Wed Mar 07 00:00:00 CST 2001
, published
Tue Jul 22 00:00:00 CDT 2003
- SAMSUNG ELECTRONICS CO LTD
A passivation layer is formed by coating a flowable insulating material on the substrate where a thin film transistor and a storage capacitor electrode, and a pixel electrode is formed on the passivation layer. A portion of the passivation layer is etched...
US5548424 (A), filed
Mon Dec 05 00:00:00 CST 1994
, published
Tue Aug 20 00:00:00 CDT 1996
- CANON KK
A surface stability ferroelectric liquid crystal device has color filters with adjacent resin films. The resin films are provided by a first resin film and a second resin film, wherein the second resin film is formed with a resin solution having a viscosity...
US4471385 (A), filed
Tue Dec 13 00:00:00 CST 1977
, published
Tue Sep 11 00:00:00 CDT 1984
- HYATT GILBERT P
Control of illumination with illumination amplifier devices provides a basis for implementing various types of illumination systems. Also illumination amplifiers in closed illumination servo loops provide improved illumination control. An illumination control...
US5963278 (A), filed
Thu Jul 31 00:00:00 CDT 1997
, published
Tue Oct 05 00:00:00 CDT 1999
- SEMICONDUCTOR ENERGY LAB
A novel structure of an active electro-optical device is disclosed. The device is provided with complementary thin film insulated gate field effect transistors (TFTs) therein which comprise a P-TFT and an N-TFT, P-TFT and N-TFT are connected to a common signal...
US4567104 (A), filed
Fri Jun 24 00:00:00 CDT 1983
, published
Tue Jan 28 00:00:00 CST 1986
- CANYON MATERIALS RES ENG
The invention relates to high energy beam-sensitive glass articles exhibiting insensitivity and/or inertness to actinic radiation, i.e., glass articles which are darkened and/or colored within a thin surface layer of, e.g., about 0.1-3 mu m upon exposure to a...
US5003356 (A), filed
Mon Apr 02 00:00:00 CDT 1990
, published
Tue Mar 26 00:00:00 CST 1991
- CASIO COMPUTER CO LTD
A TFT array having a plurality of gate lines and a plurality of drain lines formed on a transparent substrate. The gate lines intersect with the drain lines. TFT are formed at the intersections of the gate lines and the drain lines. An insulating film is...
US5485173 (A), filed
Mon Apr 01 00:00:00 CST 1991
, published
Tue Jan 16 00:00:00 CST 1996
- IN FOCUS SYSTEMS INC
An addressing method and apparatus addresses faster responding liquid crystal display panels (LCDs) so that video rate, high information content LCDs having time constants on the order of 50 ms or less are perceived as having improved contrast by limiting peak...
US4671618 (A), filed
Fri Jun 27 00:00:00 CDT 1986
, published
Tue Jun 09 00:00:00 CDT 1987
- DOANE J WILLIAM
The invention provides a new liquid crystal-plastic display material having submillisecond switching times and an electrooptic bistable memory. The material comprises microdroplets of liquid crystal dispersed in a plastic matrix, the liquid crystal being...
US6372534 (B1), filed
Fri Apr 12 00:00:00 CDT 1996
, published
Tue Apr 16 00:00:00 CDT 2002
- LG PHILIPS LCD CO LTD
This invention is related to a thin film transistor (TFT) array and method of making same, for use in an active matrix liquid crystal display (AMLCD) having a high pixel aperture ratio. The TFT array and corresponding display are made by forming the TFTs and...
US4333165 (A), filed
Thu Dec 01 00:00:00 CST 1977
, published
Tue Jun 01 00:00:00 CDT 1982
- FORMIGRAPHIC ENGINE CORP
Method and active media for controlled production of physical and refractive index inhomogeneities in a volume of a suspension medium by use of at least two intersecting beams of electromagnetic radiation matched to the excited state properties of molecules in...
US5300788 (A), filed
Fri Jan 18 00:00:00 CST 1991
, published
Tue Apr 05 00:00:00 CDT 1994
- KOPIN CORP
Light emitting diodes (LEDs) and LED bars and LED arrays formed of semiconductive material, such as III-V, and particularly AlGaAs/GaAs material, are formed in very thin structures using organometallic vapor deposition (OMCVD). Semiconductor p-n junctions are...
US7409327 (B2), filed
Fri Feb 15 00:00:00 CST 2002
, published
Tue Aug 05 00:00:00 CDT 2008
- SIOPTICAL INC
A method for forming a hybrid active electronic and optical circuit using a lithography mask. The hybrid active electronic and optical circuit comprising an active electronic device and at least one optical device on a Silicon-On-Insulator (SOI) wafer. The SOI...
US6262784 (B1), filed
Mon Jun 30 00:00:00 CDT 1997
, published
Tue Jul 17 00:00:00 CDT 2001
- SAMSUNG ELECTRONICS CO LTD
Active matrix display devices having improved opening and contrast ratios utilize light blocking lines to improve display contrast ratios yet position the light blocking lines on the same level of metallization as the gate lines to thereby limit parasitic...
US4932758 (A), filed
Fri Sep 16 00:00:00 CDT 1988
, published
Tue Jun 12 00:00:00 CDT 1990
- CANON KK
A ferroelectric smectic liquid crystal device having an improved impact resistance and an improved contrast is provided by using a pair of substrates provided with uniaxial alignment axes which are parallel and identical in direction with each other. A...
US4917471 (A), filed
Fri Aug 28 00:00:00 CDT 1987
, published
Tue Apr 17 00:00:00 CDT 1990
- CANON KK
By use of specific color filters in Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein, generation of alignment defect ocurring in the initial alignment control step could be avoided.
US5568293 (A), filed
Fri Apr 28 00:00:00 CDT 1995
, published
Tue Oct 22 00:00:00 CDT 1996
- CANON KK
Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled avoids, generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent trapezoidal color filters having...
US6166414 (A), filed
Wed Aug 25 00:00:00 CDT 1999
, published
Tue Dec 26 00:00:00 CST 2000
- SEMICONDUCTOR ENERGY LAB
An electronic circuit formed on an insulating substrate and having thin-film transistors (TFTs) comprising semiconductor layers. The thickness of the semiconductor layers is less than 1500 ANGSTROM , e.g., between 100 and 750 ANGSTROM . A first layer...
US6365916 (B1), filed
Fri Jul 16 00:00:00 CDT 1999
, published
Tue Apr 02 00:00:00 CST 2002
- LG PHILIPS LCD CO LTD
A high aperture active matrix liquid crystal display (AMLCD) includes pixel electrodes in respective pixels which overlap adjacent address lines. The color filters are formed on the active substrate in a manner such that the filters also overlap the address...
US6406946 (B1), filed
Thu Jan 08 00:00:00 CST 1998
, published
Tue Jun 18 00:00:00 CDT 2002
- FUJITSU LTD
A TFT matrix-type liquid crystal display device is used in laptop personal computers and wall TV's. On a transparent insulating substrate there are formed gate bus lines for commonly connecting the gates of thin film transistors, drain bus lines for commonly...
US6512568 (B2), filed
Tue Dec 18 00:00:00 CST 2001
, published
Tue Jan 28 00:00:00 CST 2003
- SAMSUNG ELECTRONICS CO LTD
A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid...
US7094665 (B2), filed
Mon May 24 00:00:00 CDT 2004
, published
Tue Aug 22 00:00:00 CDT 2006
- SEIKO EPSON CORP
A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes...
US6448612 (B1), filed
Thu Nov 02 00:00:00 CST 2000
, published
Tue Sep 10 00:00:00 CDT 2002
- SEMICONDUCTOR ENERGY LAB
An electronic circuit formed on an insulating substrate and having thin-film transistors (TFTs) comprising semiconductor layers. The thickness of the semiconductor layers is less than 1500 Å, e.g., between 100 and 750 Å. A first layer consisting mainly of...
US5050965 (A), filed
Wed Nov 22 00:00:00 CST 1989
, published
Tue Sep 24 00:00:00 CDT 1991
- IN FOCUS SYSTEMS INC
A color display is formed by stacking two or more birefringent elements that are tuned to provide different spectral characteristics, and operating each of the elements independently.
US4844569 (A), filed
Tue May 19 00:00:00 CDT 1987
, published
Tue Jul 04 00:00:00 CDT 1989
- SEIKO EPSON CORP
A liquid crystal display device and method of fabrication thereof includes a first twisted nematic liquid crystal cell and an optically anisotropic material sandwiched between two polarizers. A second twisted nematic liquid crystal cell or polymer film serves...
US6765279 (B2), filed
Mon Feb 05 00:00:00 CST 2001
, published
Tue Jul 20 00:00:00 CDT 2004
- ELM TECHNOLOGY CORP
General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a...
US6261856 (B1), filed
Thu Dec 10 00:00:00 CST 1998
, published
Tue Jul 17 00:00:00 CDT 2001
- SEMICONDUCTOR ENERGY LAB
A method for treating an object with a laser including emitting a laser beam from a laser; expanding the laser beam in a first direction; removing a portion of the laser beam though a mask, the portion including at least edges of the expanded laser beam...
US6021237 (A), filed
Thu Feb 12 00:00:00 CST 1998
, published
Tue Feb 01 00:00:00 CST 2000
- KOREA INST SCIENCE TECHNOLOGY
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical...
US6208399 (B1), filed
Fri Oct 08 00:00:00 CDT 1999
, published
Tue Mar 27 00:00:00 CST 2001
- HITACHI LTD
A liquid crystal display device can realize a broad visual field angle comparable to a cathode ray tube and produce a high brightness and a high image quality, with low power consumption and a narrow frame. To achieve these features, in an active matrix system...
US5926237 (A), filed
Tue Sep 01 00:00:00 CDT 1998
, published
Tue Jul 20 00:00:00 CDT 1999
- LG ELECTRONICS INC
A liquid crystal display device includes a liquid crystal panel having a display area, a light source joined with the liquid crystal panel, a first frame coupled to a surface of the light unit and sides of the liquid crystal panel, a second frame coupled to...
US6630687 (B1), filed
Thu Aug 31 00:00:00 CDT 2000
, published
Tue Oct 07 00:00:00 CDT 2003
- SEMICONDUCTOR ENERGY LAB
A wiring line to which a high-frequency signal is applied is electrically connected in parallel to an auxiliary wiring line via a plurality of contact holes. The contact holes are formed through an interlayer insulating film and arranged in vertical direction...
US6081308 (A), filed
Thu Feb 26 00:00:00 CST 1998
, published
Tue Jun 27 00:00:00 CDT 2000
- SAMSUNG ELECTRONICS CO LTD
Since Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single Mo or MoW layer can be used as a wiring by itself of large scale and high resolution liquid crystal. The Mo or MoW layer has the low...
US6608353 (B2), filed
Fri Jul 12 00:00:00 CDT 2002
, published
Tue Aug 19 00:00:00 CDT 2003
- SEMICONDUCTOR ENERGY LAB
An electronic circuit formed on an insulating substrate and having thin-film transistors (TFTs) comprising semiconductor layers. The thickness of the semiconductor layer is less than 1500 Å, e.g., between 100 and 750 Å. A first layer consisting mainly of...
US5978125 (A), filed
Thu Nov 30 00:00:00 CST 1995
, published
Tue Nov 02 00:00:00 CST 1999
Optical variable delay devices for providing variable true time delay to multiple optical beams simultaneously. A ladder-structured variable delay device comprises multiple basic building blocks stacked on top of each other resembling a ladder. Each basic...
US5331447 (A), filed
Wed Jul 08 00:00:00 CDT 1992
, published
Tue Jul 19 00:00:00 CDT 1994
- HITACHI LTD
There are disclosed various types of TFT active matrix liquid crystal display devices in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling...
US4890902 (A), filed
Tue Feb 23 00:00:00 CST 1988
, published
Tue Jan 02 00:00:00 CST 1990
- UNIV KENT
A light modulating material comprising phase-separated microdroplets of liquid crystal in a light transmissive, synthetic resin matrix wherein the index of refraction np of the matrix is matched or mismatched to an index of refraction No of the liquid crystal...
US5767926 (A), filed
Tue Feb 13 00:00:00 CST 1996
, published
Tue Jun 16 00:00:00 CDT 1998
- SAMSUNG ELECTRONICS CO LTD
A liquid crystal display having an improved display characteristic and having a ring-structured storage capacitor of an independent wiring type wherein disconnection and/or short circuit defects are reduced and a method for manufacturing the same. The liquid...
US4673255 (A), filed
Fri Jun 27 00:00:00 CDT 1986
, published
Tue Jun 16 00:00:00 CDT 1987
- DOANE JOSEPH W
The invention provides a method of controlling the rate of growth of liquid crystal microdroplets formed in situ by the phase separation of a homogeneous solution of liquid crystal and polymer. Temperature, relative concentration and choice of materials...
US5612799 (A), filed
Fri Oct 13 00:00:00 CDT 1995
, published
Tue Mar 18 00:00:00 CST 1997
- SEMICONDUCTOR ENERGY LAB CO IN
A grey tone display and a driving method are described. The display comprises a light influencing layer, an electrode pad located adjacent to the layer at one side of the layer in order to define a pixel in the layer, an n-channel field effect transistors...
US4644338 (A), filed
Fri Jul 01 00:00:00 CDT 1983
, published
Tue Feb 17 00:00:00 CST 1987
- HOSIDEN ELECTRONICS CO
A liquid crystal cell comprises a liquid crystal sealed between a pair of confronting transparent substrates. A multiplicity of semiconductor driver elements are substantially uniformly distributed over an inner surface of one of the substrates. The semiconduc...
US4209852 (A), filed
Mon Nov 11 00:00:00 CST 1974
, published
Tue Jun 24 00:00:00 CDT 1980
- HYATT GILBERT P
An improved arrangement is provided for processing analog and digital signals, where particular advantages are obtained using charge coupled devices (CCDs). A memory arrangement utilizes a novel refresh circuit to re-establish signal amplitudes which are...
US5868485 (A), filed
Mon Apr 28 00:00:00 CDT 1997
, published
Tue Feb 09 00:00:00 CST 1999
- SEIKO EPSON CORP
A liquid crystal panel unit is attached to a light incident surface of a prism composite. The liquid crystal panel unit includes a panel frame plate holding a liquid crystal panel, and a fixation frame plate glued and fixed to the light incident surface. The...
US6918670 (B2), filed
Fri Jul 25 00:00:00 CDT 2003
, published
Tue Jul 19 00:00:00 CDT 2005
- E VISION LLC
A spectacle lens is disclosed. The disclosed lens provides a vision correcting area for the correction of a wearer's refractive error. The viewing correction area provides correction for non-conventional refractive error to provide at least a part of the...
US5854494 (A), filed
Thu Jun 30 00:00:00 CDT 1994
, published
Tue Dec 29 00:00:00 CST 1998
- SEMICONDUCTOR ENERGY LAB
A circuit adapted to dynamically activate an electro-optical display device is constructed from a thin-film gate-insulated semiconductor device. This device comprises PMOS TFTs producing only a small amount of leakage current. Besides the dynamic circuit, a...
US4471470 (A), filed
Mon Feb 22 00:00:00 CST 1982
, published
Tue Sep 11 00:00:00 CDT 1984
- FORMIGRAPHIC ENGINE CORP
Methods and active media for controlled production and optical access of data in the form of physio-chemical inhomogeneities, such as controlled differences in absorption characteristics of molecules at selected regions. The methods involve use of at least two...
US5200848 (A), filed
Mon Mar 19 00:00:00 CST 1990
, published
Tue Apr 06 00:00:00 CDT 1993
- CANON KK
A ferroelectric smectic liquid crystal device having an improved impact resistance and an improved contrast is provided by using a pair of substrates provided with uniaxial alignment axes which are parallel and identical in direction with each other. A...
US5398126 (A), filed
Thu May 05 00:00:00 CDT 1994
, published
Tue Mar 14 00:00:00 CST 1995
- CANON KK
Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein avoids, generation of alignment defect ocurring in the initial alignment control step by providing space of 0-5 microns between adjacent color filters.
US4688900 (A), filed
Tue Sep 17 00:00:00 CDT 1985
, published
Tue Aug 25 00:00:00 CDT 1987
- UNIV KENT
A light modulating material consisting of droplets of liquid crystal in a clear or light transmitting, flexible plastic sheet or film, such as a cured epoxy. The light modulating material is prepared by dissolving liquid crystal in an uncured resin and then...
US5120466 (A), filed
Mon Sep 26 00:00:00 CDT 1988
, published
Tue Jun 09 00:00:00 CDT 1992
- CANON KK
A liquid crystal device having a pair of base plates and a liquid crystal composition interposed between the pair of base plates. The liquid crystal composition contains a liquid crystal showing at least a chiral smectic phase and a liquid crystal showing at...
US7223696 (B2), filed
Tue Jan 27 00:00:00 CST 2004
, published
Tue May 29 00:00:00 CDT 2007
- ELM TECHNOLOGY CORP
General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a...
US5612801 (A), filed
Fri Sep 30 00:00:00 CDT 1994
, published
Tue Mar 18 00:00:00 CST 1997
- ROCKWELL SCIENCE CENTER INC
A monolithic O-plate optical compensator device, in accordance with the invention, comprises a plurality of thin-film compensation layers which are deposited on a single substrate. As used herein, the term "monolithic" is meant to imply that the O-plate and...
US5614732 (A), filed
Fri Aug 19 00:00:00 CDT 1994
, published
Tue Mar 25 00:00:00 CST 1997
- SEMICONDUCTOR ENERGY LAB
A thin film field effect transistors and manufacturing method for the same are described. The channel region of the transistor is spoiled by an impurity such as oxygen, carbon, nitrogen. The photosensitivity of the channel region is reduced by the spoiling...
US6376270 (B1), filed
Thu Jun 27 00:00:00 CDT 1996
, published
Tue Apr 23 00:00:00 CDT 2002
- LG PHILIPS LCD CO LTD
A liquid crystal display having an increased pixel aperture ratio is disclosed along with a method of making same. An array of a-Si TFTs is deposited on a transparent substrate. Subsequently, an organic insulating layer (e.g. Benzocyclobutene) and a correspond...
US6804058 (B1), filed
Thu Jul 27 00:00:00 CDT 2000
, published
Tue Oct 12 00:00:00 CDT 2004
- 3M INNOVATIVE PROPERTIES CO
A light source comprises an electroluminescent panel and a reflective polarizer that is preferably polymeric, birefringent, or both. The reflective polarizer is positioned to receive light generated by the light generating layer. The reflective polarizer...
US6034749 (A), filed
Wed Jun 07 00:00:00 CDT 1995
, published
Tue Mar 07 00:00:00 CST 2000
- HITACHI PROCESS COMPUTER ENG
A liquid crystal light valve includes a semiconductor substrate having a region for a plurality of switching elements formed in a matrix form. A first metal layer is formed on the surface of the semiconductor substrate through an insulating layer and divided...
US7280265 (B2), filed
Wed May 12 00:00:00 CDT 2004
, published
Tue Oct 09 00:00:00 CDT 2007
- IDC LLC
An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical...
US5940150 (A), filed
Wed Feb 26 00:00:00 CST 1997
, published
Tue Aug 17 00:00:00 CDT 1999
- REVEO INC
Electro-optical glazing structures having total-reflection and semi-transparent and totally-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications.
US5137991 (A), filed
Thu Oct 19 00:00:00 CDT 1989
, published
Tue Aug 11 00:00:00 CDT 1992
- UNIV OHIO STATE RES FOUND
Self-prontonated sulfonic acid-substituted polyaniline compositions, processes for their preparation and uses therefor are disclosed. The sulfonated polyaniline compositions have faster electronic and optical responses to electrochemical potentials comparing...
US6127199 (A), filed
Fri Jul 10 00:00:00 CDT 1998
, published
Tue Oct 03 00:00:00 CDT 2000
- SEIKO EPSON CORP
A method of manufacturing an active matrix substrate is provided that uses a technique of transferring a thin film device. In forming thin film transistors and pixel electrodes on an original substrate before transfer, an insulator film such as an interlayer...
