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    • 2. 发明申请
    • DISPLAY APPARATUS PROVIDING SIDE VIEW LUMINANCE ENHANCEMENT
    • 显示设备提供侧视图亮度增强
    • US20110043730A1
    • 2011-02-24
    • US12726056
    • 2010-03-17
    • Hee-Wook DOKi-Chul ShinKwang-Hyun KimJi-Hoon Kim
    • Hee-Wook DOKi-Chul ShinKwang-Hyun KimJi-Hoon Kim
    • G02F1/1335G02F1/13363
    • G02F1/13362G02F1/13363G02F1/1393
    • A flat panel display device is provided with an increased viewing angle having good dark versus light imaging contrast. The display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a liquid crystal layer that is driven in a vertical alignment mode. The first optical unit includes a negative C-plate and a first polarizer having a first absorption axis. The second optical unit includes a biaxial compensation plate having a refractive indices coefficient, (nx−nz)/(nx−ny) of more than 0.45 and less than 0.55, and a second polarizer having a second absorption axis crossing the first absorption axis. The biaxial compensation plate has a refractive indices relationship of nx>nz>ny such that dispersion of polarization states of colored light rays passed through the C-plate and the liquid crystal layer may be minimized and gathered about an extinction point, thereby improving contrast at side viewing angles.
    • 平板显示装置具有增强的视角,具有良好的暗对比光成像对比度。 显示装置包括显示面板,第一光学单元和第二光学单元。 显示面板包括以垂直对准模式驱动的液晶层。 第一光学单元包括负C板和具有第一吸收轴的第一偏振器。 第二光学单元包括折射率系数(nx-nz)/(nx-ny)大于0.45且小于0.55的双轴补偿板,以及具有与第一吸收轴交叉的第二吸收轴的第二偏振器。 双轴补偿板的折射率关系为nx> nz> ny,使得通过C板和液晶层的有色光的偏振态的分散可以最小化并聚集在消光点附近,从而改善了对比度 侧视角。
    • 3. 发明授权
    • Display apparatus providing side view luminance enhancement
    • 提供侧视亮度增强的显示装置
    • US08330912B2
    • 2012-12-11
    • US12726056
    • 2010-03-17
    • Hee-Wook DoKi-Chul ShinKwang-Hyun KimJi-Hoon Kim
    • Hee-Wook DoKi-Chul ShinKwang-Hyun KimJi-Hoon Kim
    • G02F1/1335
    • G02F1/13362G02F1/13363G02F1/1393
    • A flat panel display device is provided with an increased viewing angle having good dark versus light imaging contrast. The display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a liquid crystal layer that is driven in a vertical alignment mode. The first optical unit includes a negative C-plate and a first polarizer having a first absorption axis. The second optical unit includes a biaxial compensation plate having a refractive indices coefficient, (nx−nz)/(nx−ny) of more than 0.45 and less than 0.55, and a second polarizer having a second absorption axis crossing the first absorption axis. The biaxial compensation plate has a refractive indices relationship of nx>nz>ny such that dispersion of polarization states of colored light rays passed through the C-plate and the liquid crystal layer may be minimized and gathered about an extinction point, thereby improving contrast at side viewing angles.
    • 平板显示装置具有增强的视角,具有良好的暗对比光成像对比度。 显示装置包括显示面板,第一光学单元和第二光学单元。 显示面板包括以垂直对准模式驱动的液晶层。 第一光学单元包括负C板和具有第一吸收轴的第一偏振器。 第二光学单元包括折射率系数(nx-nz)/(nx-ny)大于0.45且小于0.55的双轴补偿板,以及具有与第一吸收轴交叉的第二吸收轴的第二偏振器。 双轴补偿板的折射率关系为nx> nz> ny,使得通过C板和液晶层的有色光的偏振态的分散可以最小化并聚集在消光点附近,从而改善了对比度 侧视角。
    • 4. 发明授权
    • Polarizing plate and display apparatus having the same
    • 具有相同的偏光板和显示装置
    • US08508696B2
    • 2013-08-13
    • US12845637
    • 2010-07-28
    • Kwang-Hyun KimKi-Chul ShinSeung-Hee LeeJi-Hoon KimSang-Jae Kim
    • Kwang-Hyun KimKi-Chul ShinSeung-Hee LeeJi-Hoon KimSang-Jae Kim
    • G02F1/1335
    • G02F1/133502G02B5/3083G02F2001/133541G02F2001/133638G02F2413/02
    • A display apparatus comprises a display panel, a first polarizing plate and a second polarizing plate. The display panel comprises a first substrate including a pixel electrode, a second substrate opposite to the first substrate, and a liquid crystal layer disposed between a first surface of the first substrate and a first surface of the second substrate. The first polarizing plate comprises a first polarizer having a first polarizing axis, and a first λ/4 phase difference plate having a refractive index between about 1.35 and about 2.05 in a thickness direction. The second polarizing plate comprises a second polarizer having a second polarizing axis crossing the first polarizing axis, and a second λ/4 phase difference plate having a refractive index between about 1.35 and about 2.05 in a thickness direction. Accordingly, light leakage in a side view may be reduced and viewing angle may be improved.
    • 显示装置包括显示面板,第一偏振片和第二偏振片。 显示面板包括:第一基板,包括像素电极,与第一基板相对的第二基板;以及液晶层,设置在第一基板的第一表面和第二基板的第一表面之间。 第一偏振板包括具有第一偏振轴的第一偏振片和厚度方向上折射率约为1.35至约2.05的第一λ/ 4相位差板。 第二偏振板包括具有与第一偏振轴交叉的第二偏振轴的第二偏振片和在厚度方向上的折射率在约1.35和约2.05之间的第二λ/ 4相位差板。 因此,可以减小侧视图中的漏光,并且可以提高视角。