摘要:
The liquid crystal display device of the present invention includes picture element regions each include a transparent region for providing a transmission mode display and a reflection region for providing a reflection mode display. In each of the picture element regions, the first electrode includes a solid area formed of a conductive film and a non-solid area with no conductive film provided, the liquid crystal layer, in the presence of an applied voltage, forms liquid crystal domains each in a radially-inclined orientation by an inclined electric field generated in the vicinity of the solid area. The second substrate includes a stepped portion having an upper tier located in the reflection region, a lower tier located in the transmission region and a side surface connecting the upper tier and the lower tier to each other, and the side surface of the stepped portion is located in the reflection region and is covered with the second electrode.
摘要:
To facilitate a gradation transition from the last gradation to a current gradation, in a modulation driving processing section for correcting current image data, the gradation transition is facilitated in such a degree that an actual luminance of the pixel can be a luminance indicated by image data of a current frame in a state where the gradation transition is made to a sufficient level from the second last gradation to the last gradation. In the liquid crystal display panel, d2·γ/ΔV is set to be not larger than 41×10−6 [mm4/(V·s)] wherein d [μm] indicates a thickness of the liquid crystal layer in the liquid crystal panel, γ[mm2/s] indicates a flow viscosity when the liquid crystal panel is set to a temperature of 5° C., and ΔV[V] indicates a difference in liquid crystal layer application voltage between a maximum luminance display and a minimum luminance display. With this structure, under general use conditions of the liquid crystal display apparatus, an improved response speed can be realized by facilitating a gradation transition from the last gradation to the current gradation by means of one parameter, and a high display quality can be maintained.
摘要:
The liquid crystal display device of this invention includes a vertical alignment type liquid crystal layer between a first substrate and a second substrate. A picture element region is defined by a first electrode provided on the surface of the first substrate facing the liquid crystal layer and a second electrode provided on the surface of the second substrate facing the liquid crystal layer. The first substrate has at least one first protrusion with an inclined side face on the surface thereof facing the liquid crystal layer in each of the plurality of picture element regions. A portion of the liquid crystal layer included in each of the plurality of picture element regions is in a substantially vertical orientation state under application of no voltage, and includes at least a part of a first liquid crystal domain placed in a radially-inclined orientation state about the first protrusion under voltage application. A display is produced by changing the orientation state of the liquid crystal layer in accordance with an applied voltage.
摘要:
The liquid crystal display device of this invention includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate and a plurality of picture element regions for producing a display. In each of the plurality of picture element regions, a picture element electrode provided on the face of the first substrate facing the liquid crystal layer and a switching element electrically connected to the picture element electrode are provided. The picture element electrode includes a plurality of sub-picture element electrodes and a plurality of contact portions for mutually electrically connecting at least some of the plurality of sub-picture element electrodes. At least one of the plurality of sub-picture element electrodes is electrically connected to the switching element via a plurality of connection paths.
摘要:
A liquid crystal display device, includes: a first substrate, a second substrate, a liquid crystal layer interposed therebetween, and a plurality of pixel regions defined by a pair of electrodes for applying a voltage to the liquid crystal layer. Each of the plurality of pixel regions includes a reflection region and a transmission region, and the liquid crystal layer is made of a liquid crystal material having positive dielectric anisotropy. A first polarizing element is provided on the first substrate opposite to the liquid crystal layer; a second polarizing element is provided on the second substrate opposite to the liquid crystal layer; a first phase difference compensator is provided between the first polarizing element and the liquid crystal layer; and a second phase difference compensator is provided between the second polarizing element and the liquid crystal layer. A twist angle &thgr;t of the liquid crystal layer is in a range of 0° to 90°. Retardation Rd and the twist angle &thgr;t in a visible light region of the liquid crystal layer in the reflection region are in ranges within curves respectively represented by the following Formulae (1) and (2), and Formulae (3) and (4), in ranges within curves respectively represented by the following Formulae (5) and (6) and Formulae (7) and (8) at the twist angle &thgr;t in a range of 0°≦&thgr;t≦54.3°, and in ranges within curves respectively represented by prescribed Formulae.
摘要:
The projection type liquid crystal display apparatus of the invention includes: a light source; a liquid crystal display device; and a projection lens. In the projection type liquid crystal display apparatus, the projection lens and the liquid crystal display device are arranged to satisfy the relationship: .theta..sub.LC-max -1.degree..ltoreq..theta..sub.LENS .ltoreq..theta..sub.LC-max +1.degree., where .theta..sub.LENS is a collection angle of the projection lens and .theta..sub.LC-max is a maximum viewing angle of the liquid crystal display device at which a contrast ratio of an image light beam emitted through the projection lens CR.sub.PROJ is equal to a prescribed contrast ratio CR.sub.TARGET, and CR.sub.PROJ is calculated by the following equation: CR.sub.PROJ =.intg.T.sub.max (.theta..sub.LC, u, V.sub.LC-max).multidot.t(.theta..sub.LC) d.theta..sub.LC /.intg.T.sub.min (.theta..sub.LC, u, V.sub.LC-min).multidot.t(.theta..sub.LC)d.theta..sub.LC, where, u=d.multidot..DELTA.n/.lambda.; t(.theta.) is a luminance at an angle .theta. of the light beam incident onto the liquid crystal display device; .intg.T.sub.max (.theta..sub.LC, u, V.sub.LC-max) is a maximum transmittance at .theta..sub.LC ; and .intg.T.sub.min (.theta..sub.LC, u, V.sub.LC-max) is a minimum transmittance at .theta..sub.LC.
摘要翻译:本发明的投影型液晶显示装置包括:光源; 液晶显示装置; 和投影透镜。 在投影型液晶显示装置中,投影透镜和液晶显示装置被配置为满足以下关系:θLC-max-1°> LENS > LC-max + 1°,其中θ LENS是投影透镜的收集角,θLC-max是通过投影透镜CRPROJ发射的图像光束的对比度等于规定的对比度CRTARGET的液晶显示装置的最大视角, CRPROJ通过以下等式计算:CRPROJ = INTEGRAL Tmax(θLC,u,VLC-max)xt(θLC)d theta LC / INTEGRAL Tmin(θLC,u,VLC-min)xt(θLC)d θLC,其中,u = dx DELTA n /λ; t(θ)是入射到液晶显示装置上的光束的角度θ处的亮度; 整数Tmax(θLC,u,VLC-max)是θLC时的最大透射率; 和INTEGRAL Tmin(theta LC,u,VLC-max)是θLC时的最小透射率。
摘要:
A projection-type liquid crystal display is provided with an image-outputting section which includes a liquid-crystal panel. On the light-releasing side of the liquid crystal panel, an active-matrix substrate and a polarizing element are bonded to each other with a bonding material that has virtually the same refractive index as that of these members so as to reduce internal reflection on the light-releasing surface of the active-matrix substrate and external reflection on the light-incident surface of the polarizing element. Further, a reflection-reducing coating layer is formed on the light-releasing surface of the light-releasing-side polarizing element to reduce internal reflection on the light-releasing surface of the polarizing element.
摘要:
The present invention provides a multi-domain type liquid crystal display device with a vertical alignment liquid crystal layer that can get a display operation done without making the viewer sense any unnaturalness and with the decrease in optical transmittance minimized. In the liquid crystal display device of this invention, the liquid crystal layer of each pixel has liquid crystal regions in which liquid crystal molecules tilt in multiple different directions when a voltage is applied between first and second electrodes. Each pixel has an opaque portion arranged on a boundary between the liquid crystal regions. The opaque portion is provided for at least one of the substrates so that when a voltage is applied between the first and second electrodes, the liquid crystal molecules neighboring the boundary will tilt while turning one of their end portions, which is closer to the substrate with the opaque portion, away from the boundary. The opaque portion includes a first shielding layer and a second shielding layer, which overlaps with the first shielding layer with a predetermined gap left between them.
摘要:
A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction. The first or second substrate has an opaque member including a first opaque portion for selectively shielding at least a part of the first edge portion from incoming light.
摘要:
A liquid crystal display device according to the present invention includes: a vertical alignment liquid crystal layer; first and second electrodes arranged on one surface of first and second substrates to face the liquid crystal layer; and first and second alignment films arranged on the first and second electrodes, respectively, in contact with the liquid crystal layer. The first alignment film has been subjected to an optical alignment treatment by obliquely irradiating a first alignment film material, having a photosensitive wavelength within the wavelength range of 250 nm to 380 nm, with light including the photosensitive wavelength. The device further includes: a metal layer arranged between the first alignment film and the first substrate; and a first resin layer arranged between the metal layer and the first alignment film. The first resin layer has an optical property that attenuates the intensity of light, which has been incident on the first resin layer and then reflected from the metal layer, to 60% or less at the photosensitive wavelength.