摘要:
An object is to provide a liquid crystal display apparatus with an equal gap between two substrates so as to improve display image quality and display contrast. To accomplish this object, substrate gap adjusting region 33 or substrate gap adjusting layers 21, 22, 25, 27, 29, and 31 are formed so that the substrate gap in a region extending from a display region having pixel electrodes 7 to a driver circuit 11 is kept equal to the substrate gap in a region extending from the display region to a driver circuit 15. Thus, the gap between the two opposed substrates forming liquid crystal cells can be kept equal in any position.
摘要:
An object is to provide a liquid crystal display apparatus with an equal gap between two substrates so as to improve display image quality and display contrast. To accomplish this object, substrate gap adjusting region 33 or substrate gap adjusting layers 21, 22, 25, 27, 29, and 31 are formed so that the substrate gap in a region extending from a display region having pixel electrodes 7 to a driver circuit 11 is kept equal to the substrate gap in a region extending from the display region to a driver circuit 15. Thus, the gap between the two opposed substrates forming liquid crystal cells can be kept equal in any position.
摘要:
A front surface of the opposite electrode of a liquid crystal display panel is formed in a curved shape. The relation between the reflecting surface of the pixel electrode and the curved surface of the opposite substrate is defined so that a leaving direction of the light that is reflected by the first face of the opposite substrate is different from a leaving direction of light that is emitted from the first face of the opposite substrate after having been reflected by the pixel electrodes through the liquid crystal layer. Thus, undesired light on the front surface of the opposite substrate is separated from light that is displayed. Consequently, an image free of dazzling and deterioration of contrast ratio due to undesired reflected light can be obtained with a high contrast ratio. In a display apparatus containing the reflection type liquid crystal display, an incident surface to a dichroic prism is an inclined surface including a curved surface, not a surface that is perpendicular to the optical axis. Thus, signal light that is reflected on each reflection type liquid crystal display panel and that is displayed can be separated from undesired light that is reflected on the surface of the dichroic prism. Thus, an image with a high quality, and a high contrast ratio can be displayed.
摘要:
Disclosed is a single plate projection type display apparatus which is capable of achieving a high luminance without an increase in an output of a light source. A first lens plate having a plurality of lenses divides a light from a light source into a plurality of light beams. A second lens plate having a plurality of lenses superposes the divided plurality of light beams on a light valve, thereby performing an illumination. A color separation optical system composed of dichroic mirrors which are perpendicular to an XY plane and form predetermined angles to each other, performs a color separation for the light beams from the second lens plate. The light valve modulates R, G and B light beams which are incident thereonto. The modulated lights are projected by a projection lens. The whole shape of the second lens plate is a rectangle. The second lens plate is disposed so that a longitudinal direction of the longer side of the whole shape of the rectangle is perpendicular to a plane formed by a normal line to the dichroic mirrors and an optical axis immediately before an incidence onto the dichroic mirrors.
摘要:
A front surface of the opposite electrode of a liquid crystal display panel is formed in a curved shape. The relation between the reflecting surface of the pixel electrode and the curved surface of the opposite substrate is defined so that a leaving direction of the light that is reflected by the first face of the opposite substrate is different from a leaving direction of light that is emitted from the first face of the opposite substrate after having been reflected by the pixel electrodes through the liquid crystal layer. Thus, undesired light on the front surface of the opposite substrate is separated from light that is displayed. Consequently, an image free of dazzling and deterioration of contrast ratio due to undesired reflected light can be obtained with a high contrast ratio. In a display apparatus containing the reflection type liquid crystal display, an incident surface to a dichroic prism is an inclined surface including a curved surface, not a surface that is perpendicular to the optical axis. Thus, signal light that is reflected on each reflection type liquid crystal display panel and that is displayed can be separated from undesired light that is reflected on the surface of the dichroic prism. Thus, an image with a high quality, and a high contrast ratio can be displayed.
摘要:
A display apparatus includes a light source, a modulating device for modulating light emitted from the light source, a modulating device driving unit for driving the modulating device, a first aperture stop unit arranged between the light source and the modulating device to limit a bundle of rays to be incident on the modulating device from the light source, the first aperture stop unit having an aperture with a variable size, a display screen onto which exit light from the modulating device is projected, a projection optical system for projecting the exit light from the modulating device onto the display screen, a second aperture stop unit arranged between the modulating device and the projection optical system to limit a bundle of rays to be incident on the projection optical system from the modulating device, the second aperture stop unit having an aperture with a variable size, a photosensor for detecting the display luminance on the display screen, and an aperture control unit for controlling the size of the aperture of at least one of the first and second aperture stop units on the basis of a display luminance signal from the photosensor.
摘要:
A display apparatus includes a light source, a modulating device for modulating light emitted from the light source, a modulating device driving unit for driving the modulating device, a first aperture stop unit arranged between the light source and the modulating device to limit a bundle of rays to be incident on the modulating device from the light source, the first aperture stop unit having an aperture with a variable size, a display screen onto which exit light from the modulating device is projected, a projection optical system for projecting the exit light from the modulating device onto the display screen, a second aperture stop unit arranged between the modulating device and the projection optical system to limit a bundle of rays to be incident on the projection optical system from the modulating device, the second aperture stop unit having an aperture with a variable size, a photosensor for detecting the display luminance on the display screen, and an aperture control unit for controlling the size of the aperture of at least one of the first and second aperture stop units on the basis of a display luminance signal from the photosensor.
摘要:
A projection-type display apparatus including an elliptical condenser mirror having a concave reflecting surface consisting of part of a substantially elliptical surface, a light source arranged near a first focal point of the elliptical surface, a collimator lens having a focal point near a second focal point of the elliptical surface, an optical modulation element array having a lens array on the collimator lens side, in which optical modulation elements each having an area S are two-dimensionally arranged, and a projection lens, wherein the following relations are satisfied: ##EQU1## (when said light source is arranged perpendicular to the elliptical condenser mirror) ##EQU2## (when said light source is arranged parallel to the elliptical condenser mirror) .mu.=(B/A).sup.2 (A: major axis, B: minor axis) where L is the length of a light-emitting portion of the light source, .mu. is the square of a ratio of the minor axis to the major axis of an ellipse of the elliptical condenser mirror, f is the focal length of the collimator lens, m is the distance between the lens array and an opening portion of the modulation element, and n is the refractive index between the lens array and the modulation element.
摘要翻译:一种投影型显示装置,包括:椭圆形聚光镜,其具有由基本上椭圆面的一部分构成的凹面反射面,配置在所述椭圆面的第一焦点附近的光源;准直透镜,具有靠近第二焦点的焦点 点,在准直透镜侧具有透镜阵列的光调制元件阵列,其中具有面积S的光调制元件二维排列,投影透镜满足以下关系: (当所述光源垂直于椭圆形聚光镜布置时)(图像)(当所述光源垂直于椭圆形聚光镜布置时)< IMAGE>(当所述光源平行于椭圆形电容反射镜布置时)mu =(B / A)2(A: B:短轴)其中L是光源的发光部分的长度,mu是椭圆形电容器镜像的椭圆的短轴与长轴的比率的平方 r,+ E,uns f + EE是准直透镜的焦距,+ E,uns m + EE是透镜阵列与调制元件的开口部分之间的距离,n是透镜之间的折射率 阵列和调制元件。
摘要:
A pixel electrode is disposed with an inclination angle to a base member on a front side (namely, an opposite substrate side) of a liquid crystal display panel. The relation between the reflecting surface of the pixel electrode and the main surface of the base member on the front side of the liquid crystal display panel is defined so that the difference between the reflecting angle of light that is entered as incident light and reflected on the surface of the base member and the leaving angle of light emitted as display light via the liquid crystal display panel exceeds the collection angle of the display apparatus. Thus, undesired light on the main surface of the base member of the display surface is separated from light that is displayed. Consequently, an image free of dazzling and deterioration of contrast ratio due to undesired reflected light can be obtained with a high contrast ratio. In a display apparatus containing the reflection type liquid crystal display, an incident surface to a dichroic prism is an inclined surface, not a surface that is perpendicular to the optical axis. Thus, signal light that is reflected on each reflection type liquid crystal display panel and that is displayed can be separated from undesired light that is reflected on the surface of the dichroic prism. Thus, an image with a high quality, and a high contrast ratio can be displayed.
摘要:
When two substrates for a polymer-dispersed liquid crystal display panel are joined with a polymer-dispersed liquid crystal layer therebetween, a substrate supporting stage of a substrate joining machine is controlled to keep the uniformity in the screen of a space between the two substrates at a visually satisfactorily uniform level, thereby enabling to produce a liquid crystal display device provided with a polymer-dispersed liquid crystal layer having high uniformity in the screen. The above stage is preferably a transparent plate such as a quartz substrate. The transparent plate is used to uniformly and effectively irradiate the liquid crystal layer with ultraviolet rays to cure the liquid crystal layer by photo-setting. Besides, the two substrates having the polymer-dispersed liquid crystal layer therebetween are irradiated with light, interference fringes formed are observed, and a liquid crystal layer thickness value and the unevenness of the liquid crystal layer thickness can be detected based on the unbalance of a plane distribution and a density of the interference fringes. Based on the detected liquid crystal layer thickness value and unevenness of the liquid crystal layer thickness, the position and pressure of the supporting stage can be controlled to suppress the unevenness of the liquid crystal layer thickness and the variation of the pressure in the display screen to a level which does not effect on the reduction in display quality.