Color filter and liquid crystal display device

    公开(公告)号:SG129224A1

    公开(公告)日:2007-02-26

    申请号:SG200203195

    申请日:2002-05-29

    Abstract: The present invention provides a color filter comprising a transmission area (8) and reflection area (7) in which at least one color pixel of red, green and blue pixels is formed of the same material, wherein a transparent area (10) having no color layer is formed in a part of the reflection area (7), at least one subarea is formed in the transparent area (10), and the size of the sub-area is 20 um or more and 2,000 um or less. The present invention also provides a liquid crystal display for both transmission display and reflection display with a cheap manufacturing cost, wherein the different of chromaticity between the transmission display and reflection display is small, and the surface of the transmission area and reflection area have small step heights.

    COLOR FILTER FOR LIQUID CRYSTAL DISPLAY AND SEMITRANSMISSION LIQUID CRYSTAL DISPLAY
    5.
    发明公开
    COLOR FILTER FOR LIQUID CRYSTAL DISPLAY AND SEMITRANSMISSION LIQUID CRYSTAL DISPLAY 审中-公开
    FARBFILTER F R EINE FL SSIGKRISTALLANZEIGE UND HALBDURCHLASS-FL SSIGKRISTALLANZEIGE

    公开(公告)号:EP1533631A4

    公开(公告)日:2006-01-11

    申请号:EP02783638

    申请日:2002-11-27

    CPC classification number: G02B5/223 G02F1/133516 G02F1/133553 G02F2203/09

    Abstract: A semitransmission liquid crystal display having a high color reproducibility in the transmission display mode and excellent characteristics (color reproducibility, luminance) in the reflection display mode and produced at low cost and a color filter for a semitransmission liquid crystal display such that the difference in chromaticity between the reflection display and transmission display is small, and the luminance is high are disclosed. The semitransmission liquid crystal display comprising reflecting means including a pair of opposed substrates with a liquid crystal layer interposed therebetween and a light source using ambient light and a backlight light source is characterized in that a color filter having pixels each including transmission and reflection regions and a coloring layer made of the same material is provided and the backlight light source is a three-wavelength LED backlight.

    Abstract translation: 在透射显示模式中具有高颜色再现性和在反射显示模式中优异的特性(颜色再现性,亮度)并且以低成本生产的半透射液晶显示器和用于半透射液晶显示器的滤色器使得色度 透射显示和透射显示之间的距离小,并且亮度高。 该半透射型液晶显示装置包括:具有夹着液晶层的一对对向基板的反射装置,使用环境光的光源和背光光源,其特征在于,具有包含透过区域和反射区域的像素, 提供由相同材料制成的着色层,背光光源是三波长LED背光。

    COLOR FILTER AND LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:JP2002365420A

    公开(公告)日:2002-12-18

    申请号:JP2001167811

    申请日:2001-06-04

    Abstract: PROBLEM TO BE SOLVED: To provide a color filter in a liquid crystal display element concurrently attaining a transmissive display and a reflective display with little difference of chromaticity between the two and being flat. SOLUTION: The color filter for the liquid crystal display element is characterized by making pixels with at least one color have a transmissive region and a reflective region composed of the same color material, forming a region without any color material in the reflective region and having a compensation layer to compensate difference of chromaticity between the transmissive region and the reflective region caused by respective light sources used in both regions in the region without any color material.

    PHASE DIFFERENCE PLATE FOR LIQUID CRYSTAL DISPLAY BODY

    公开(公告)号:JPH04204402A

    公开(公告)日:1992-07-24

    申请号:JP33546190

    申请日:1990-11-29

    Abstract: PURPOSE:To obtain the phase difference plate which can be widened in a visual angle range when the phase difference plate is built into a liquid crystal display body of an STN(super twisted nematic) system by having the specific phase difference plate. CONSTITUTION:The phase difference plate is obtd. by laminating a phase difference plate compensation plate and a visual field angle compensation plate and has an achromatic effect when the phase difference plate is viewed from the front and diagonal of the liquid crystal display body. In addition, the phase difference plate has R0, R0', R40, R40' satisfying the conditions of equations I to TV when the retardations at the perpendicular incidence of both compensation plates are respectively designated as R0, R0' and retardations at the diagonal incidence inclined by 40 deg. in the main orientation axis direction of the phase difference plate compensation plate respectively as R40, R40'. In the equations, DELTAR and DELTAR' are inverse codes. The phase difference plate adequate for a liquid crystal display device having an excellent visual field angle characteristic is industrially obtd. in this way.

    PHASE DIFFERENCE FILM
    8.
    发明专利

    公开(公告)号:JPH04194902A

    公开(公告)日:1992-07-14

    申请号:JP32744990

    申请日:1990-11-27

    Abstract: PURPOSE:To decrease dependence on view field angle and to widen a visible range by specifying the polymer material of a mixture which constitutes a film comprising two or more polymer components. CONSTITUTION:A film comprising a mixture of polymer materials is uniaxially oriented. Each polymer material used has positive or negative double refraction DELTAni when each single polymer material is uniaxially oriented. DELTAni is defined as formula I, wherein nalphai and nbetai are the refractive indices of the film of single polymer in the orientation direction and perpendicular to the orientation, respectively. Thereby, dependence on view field angle is decreased and visibility can be improved.

    POLARIZING FILM
    10.
    发明专利

    公开(公告)号:JPH06138318A

    公开(公告)日:1994-05-20

    申请号:JP29262892

    申请日:1992-10-30

    Abstract: PURPOSE:To obtain, at a low cost, a polarizing film for a liquid crystal display body having a low angle-dependency of the polarization characteristics and excellent durability by forming the film composed of two layers of a specific polarizing layer and double refraction layer, the two layers of which are formed as a substantially inseparable base material film. CONSTITUTION:The polarizing film is composed of the two layers of the polarizing layer and the double refraction layer, each optical axis direction of which is at 0 deg. or 90 deg. angle to each other, and which are formed as a sheet of the substantially inseparable base material film. Any base material film which is provided with the prescribed polarizance and double refractivity can be used as the polarizing film. The polarizing film of this composition which has a low angle dependency and excellent durability and is appropriately used for the liquid crystal display device, can be provided industrially at a low cost. At the time of applying the polarizing film to one surface of a liquid crystal display body, the visual angle characteristics and reliability of displays such as word processor, portable television, on-vehicle displays, etc., can be improved.

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