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1. 发明专利

GB2347006B Liquid crystal device 未知
公开(公告)号：GB2347006B
公开(公告)日：2000-10-04
申请号：GB0012180
申请日：1996-07-26
申请人： SHARP KK , SECR DEFENCE BRIT
发明人： BRADSHAW MADELINE JOAN , JONES JOHN CLIFFORD , SAGE IAN CHARLES , MCDONNELL DAMIEN GERARD , GASS PAUL ANTONY
IPC分类号： G02F1/1333 , G02F1/1339 , G02F1/1341 , G02F1/141
摘要： A liquid crystal device is provided with a pair of substrates (12, 16) containing a liquid crystal material (22). A wall structure comprising, for example, a plurality of walls (14) is provided between the two substrates. The wall structure provides mechanical strength to the device and resistance to flow of liquid crystal material which can cause deterioration in the device performance. The walls may extend in two mutually different directions (Fig. 8, 40) to provide mechanical strength and resistance to flow in two directions while the device can still be readily filled. The device is particularly applicable to a ferroelectric liquid crystal device.

2. 发明专利

GB2347005A Methods of filling liquid crystal device 未知
公开(公告)号：GB2347005A
公开(公告)日：2000-08-23
申请号：GB0012174
申请日：1996-07-26
申请人： SHARP KK , SECR DEFENCE BRIT
发明人： BRADSHAW MADELINE JOAN , JONES JOHN CLIFFORD , SAGE IAN CHARLES , MCDONNELL DAMIEN GERARD , GASS PAUL ANTONY
IPC分类号： G02F1/1333 , G02F1/1339 , G02F1/1341 , G02F1/141
摘要： In order to fill a liquid crystal device with liquid crystal material, two substrates (12, 16), which carry electrode structures for addressing a plurality of liquid crystal cells and a wall structure (30) extending between the substrates (12, 16) for restricting flow of liquid crystal material in at least one direction, are temporarily held apart by means of spacer members (32), by way of the spaces created by the spacer members (32). After the cavities have been filled with liquid crystal material, the substrates are then compressed so as to cause the spacer members to break in order to bring the substrates and wall structure together. Such a method enables filling of the device in a manner well adapted to the manufacturing process, and ensures that the wall structure prevents free flow of liquid crystal material within the assembled device, as well as providing resistance to shear, thereby preventing deterioration of performance due to mechanical stress applied to the device.

3. 发明专利

GB2347005B Methods of filling liquid crystal device 未知
公开(公告)号：GB2347005B
公开(公告)日：2000-10-04
申请号：GB0012174
申请日：1996-07-26
申请人： SHARP KK , SECR DEFENCE BRIT
发明人： BRADSHAW MADELINE JOAN , JONES JOHN CLIFFORD , SAGE IAN CHARLES , MCDONNELL DAMIEN GERARD , GASS PAUL ANTONY
IPC分类号： G02F1/1333 , G02F1/1339 , G02F1/1341 , G02F1/141
摘要： A liquid crystal device is provided with a pair of substrates (12, 16) containing a liquid crystal material (22). A wall structure comprising, for example, a plurality of walls (14) is provided between the two substrates. The wall structure provides mechanical strength to the device and resistance to flow of liquid crystal material which can cause deterioration in the device performance. The walls may extend in two mutually different directions (Fig. 8, 40) to provide mechanical strength and resistance to flow in two directions while the device can still be readily filled. The device is particularly applicable to a ferroelectric liquid crystal device.

4. 发明专利

GB2347006A Liquid crystal device 未知
公开(公告)号：GB2347006A
公开(公告)日：2000-08-23
申请号：GB0012180
申请日：1996-07-26
申请人： SHARP KK , SECR DEFENCE BRIT
发明人： BRADSHAW MADELINE JOAN , JONES JOHN CLIFFORD , SAGE IAN CHARLES , MCDONNELL DAMIEN GERARD , GASS PAUL ANTONY
IPC分类号： G02F1/1333 , G02F1/1339 , G02F1/1341 , G02F1/141
摘要： A liquid crystal device comprises a liquid crystal material contained between two substrates. The substrates have faces carrying electrode structures for addressing a plurality of liquid crystal cells, and a wall structure extending between the two substrates for restricting flow of liquid crystal material in at least one direction substantially parallel to the faces of the substrates. In order to prevent leakage of liquid crystal material between the individual cells of the device, the wall structure comprises first walls (74, 76 or 80,82) on one of the substrates and second walls (72 or 84, 86) on the other substrate such that the first and second walls are interlocked, and the first walls are held in register with the second walls by engagement of oppositely facing side surfaces of the first walls between oppositely facing side surfaces of the second walls which face inwardly towards one another. This arrangement prevents undesirable flow of liquid crystal material within the device, as well as providing resistance to shear, which can degrade performance of the device.

5. 发明专利

ES2558841T3 Dispositivo de pantalla 未知
公开(公告)号：ES2558841T3
公开(公告)日：2016-02-09
申请号：ES08873101
申请日：2008-10-02
申请人： SHARP KK
发明人： BROUGHTON BENJAMIN JOHN , EVANS ALLAN , GASS PAUL ANTONY , JONES GRAHAM ROGER , KAY ANDREW , WALTON HARRY GARTH , YASUMOTO TAKASHI , INAMORI YOSHIMITSU , MAEDA KENJI
IPC分类号： G02F1/13 , G09G3/00 , G09G3/36
摘要： Un dispositivo de pantalla que comprende un panel (2) de pantalla de cristal líquido para mostrar una imagen mediante modulación de luz espacial, representándose la imagen mediante una pluralidad de elementos de imagen teniendo cada uno un valor (7) de datos de imagen, y comprendiendo además el dispositivo de pantalla un controlador (1) de la pantalla dispuesto para determinar una tensión de señal de aplicación en el panel (2) para cada elemento de imagen dependiendo de su valor (7) de datos de imagen y un valor (8) de datos secundario para el elemento, existiendo un mapeo predeterminado entre la imagen y los valores (7, 8) de datos secundarios y la tensión de señal, estando dispuestos los valores (8) de datos secundarios para variar por la imagen para introducir variaciones en luminancia como un resultado del mapeo, estando dispuestos mutuamente el mapeo y los valores (8) de datos secundarios para tener en cuenta la tensión de señal respecto a la respuesta de luminancia sobre el eje del panel (2) de manera que las variaciones de luminancia introducidas sobre el eje tiendan a equilibrarse localmente a través de la realización del promedio espacial a la vista de, y por tanto que no serían perceptibles por parte de, un espectador (3) sobre el eje, teniendo además el panel (2) una relación no lineal de luminancia fuera del eje respecto a luminancia sobre el eje, de manera que al menos algunas variaciones de luminancia introducidas fuera del eje no se equilibran localmente a través de la realización de un promedio espacial a la vista de, y por tanto que serían perceptibles por parte de, un espectador (4) fuera del eje, caracterizado por que cada valor de datos secundario comprende un valor de datos lateral y un valor de datos espacial, y caracterizado además por que el controlador 1 de la pantalla comprende circuitería de mapeo que tiene entradas respectivas para recibir el valor de datos de imagen, el valor de datos lateral y el valor de datos espaciales para un elemento de imagen de la pluralidad, circuitería para buscar un valor almacenado dependiendo de los valores de datos de entrada, y una salida para enviar el valor almacenado, determinándose la tensión de señal para el elemento de imagen dependiendo del valor de salida, indicando el valor de datos espaciales en cuál de dos o más grupos de los valores almacenados se considera que debe estar el elemento de imagen basándose en su posición espacial, y formando los valores de datos laterales en su conjunto una imagen lateral que puede percibirse por parte de un espectador (4) fuera del eje.

6. 发明专利

DE69636766D1 未知
公开(公告)号：DE69636766D1
公开(公告)日：2007-02-01
申请号：DE69636766
申请日：1996-06-20
申请人： SHARP KK
发明人： MIYAZAKI AYA , KODEN MITSUHIRO , GASS PAUL ANTONY
IPC分类号： G02F1/141 , G02F1/1333 , G02F1/137
摘要： According to the present invention, a ferroelectric liquid crystal display device is provided which includes a complex made of a ferroelectric liquid crystal material and a polymer material disposed between substrates attached to each other. The substrates each have at least an electrode film and an alignment film. Furthermore, the ferroelectric liquid crystal material has a chevron layer structure, and a bending direction of the chevron layer structure is identical with a direction of a pretilt angle of all molecules of the ferroelectric liquid crystal material located at interfaces between the substrates and the ferroelectric liquid crystal material.

7. 发明专利

GB2428128A A display having a holographic privacy device 未知
公开(公告)号：GB2428128A
公开(公告)日：2007-01-17
申请号：GB0513965
申请日：2005-07-08
申请人： SHARP KK
发明人： GASS PAUL ANTONY , BOURHILL GRANT
IPC分类号： G02F1/1335 , G02B5/32 , G02F1/133 , G02F1/13357
摘要： A display comprises an image display device (2) for displaying an image into at least a first viewing zone (zone B) and a second viewing zone (zone A, zone C) and a holographic optical element (1) which, when illuminated with light of a pre-determined wavelength, directs light into the second viewing zone (zone A, zone C) but directs substantially no light into the first viewing zone (zone B). Illuminating the holographic optical element (1) with light of the pre-determined wavelength thus provides a narrow display mode in which an observer in the second viewing zone cannot make out an image displayed on the display device (2). The transmission spectrum of the holographic optical element, for light propagating along at least one direction in the first viewing zone, is such that no minima occur in the spectrum at wavelengths at which the image displayed on the image display device has an intensity significantly different from zero. This can be arranged, for example, by suitable choice of the predetermined wavelength.

8. 发明专利

GB2516637A Display device and method of driving same 未知
公开(公告)号：GB2516637A
公开(公告)日：2015-02-04
申请号：GB201313404
申请日：2013-07-26
申请人： SHARP KK
发明人： GASS PAUL ANTONY , BROUGHTON BENJAMIN JOHN , WALTON EMMA , BROWN CHRISTOPHER JAMES
IPC分类号： G09G3/36
摘要： An active matrix LCD display of the multi-pixel drive (MPD) type, in which a pixelÂ comprises a plurality of sub-pixels (region A, region B) with each sub-pixel of a pixel being associated with a respective storage capacitor address lines (Vcsa, Vcsb) so that the voltage applied across an individual sub-pixel depends on both the signal voltage Vd and the voltage applied to the associated storage capacitor address line, is driven such that the relationship between at least a first one of the capacitor line voltages and a second one of the capacitor line voltages in a first display refresh period of the frame is different to the relationship between the first of the capacitor line voltages and the second of the capacitor line voltages in a second display refresh period of the frame. This allows the root-mean-square (RMS) voltage applied over the frame across a first of the sub-pixels to be controlled at least partially independently of the RMS voltage applied over the frame across a second of the sub-pixels, thereby providing increased resolution.

9. 发明专利

GB2508845A Analogue multi-pixel drive 未知
公开(公告)号：GB2508845A
公开(公告)日：2014-06-18
申请号：GB201222368
申请日：2012-12-12
申请人： SHARP KK
发明人： SMITH NATHAN JAMES , BROUGHTON BENJAMIN JOHN , BROWN CHRISTOPHER JAMES , GASS PAUL ANTONY
IPC分类号： G02F1/1343 , G09G3/20
摘要： A display comprises independently addressable pixels, each pixel comprising first and second electrodes (12a,12b) disposed on a first substrate (11), spaced apart from one another and electrically connected to one another by a resistive layer 13. A counter electrode (22) is provided on a second substrate, with an electro-Âoptical material such as liquid crystal provided between the first and second substrate. A controller, in use, applies first and second different voltages to the first and second electrodes respectively to establish a voltage gradient (15) between the first and second electrodes, and a third voltage to the counter electrode to define in the pixel at least one of a first region (18a) in which the electro-optical material is in an unswitched state, a second region (18c) in which the electro-optical material is in a fully switched state and a third region (18b) in which the electro-optical material is in a partially switched state. The first, second and third voltages are selected such that the area of the, or each of the first, second and third region defined in the pixel produces a desired greyscale level for the pixel. This arrangement may improve the viewing angle.

10. 发明专利

GB2473615A Display privacy image processing method with main image compression depending on off-axis luminance 未知
公开(公告)号：GB2473615A
公开(公告)日：2011-03-23
申请号：GB0916247
申请日：2009-09-16
申请人： SHARP KK
发明人： BROUGHTON BENJAMIN JOHN , KAY ANDREW , SERVAIS MARC PAUL , GASS PAUL ANTONY , MAEDA KENJI , WATANABE TATSUO , SATO YUUICHI , INAMORI YOSHIMITSU , YASUMOTO TAKASHI , ESASHI MASAHIRO
IPC分类号： H04N5/57 , G06F21/84 , G09F19/14 , G09G3/36 , H04N7/26
摘要： Private display image processing method comprising receiving a main image and a side image and mapping the image pixel data to produce an average on-axis luminance dependent on the main image and an average off-axis luminance dependent on the side image, and compressing the main image depending on the main image pixel data and how the off-axis luminance varies with pixel data input to the mapping. The main image pixel data may be compressed in a non-linear fashion into a range of on-axis luminances to optimise a sum of weighted values. The compression may be an iterative process, with increasing main image degradation until the side image quality reaches a threshold. This method creates a high quality restricted-view display without image degradation and without the cost of hardware modifications.

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