Liquid crystal display
First Claim
1. A liquid crystal display used in normally black mode, comprising a plurality of pixels each of which has a liquid crystal layer and a plurality of electrodes for applying voltage to the liquid crystal layer, wherein:
- each of the plurality of pixels comprises a first sub-pixel and a second sub-pixel which can apply mutually different voltages to their respective liquid crystal layers; and
when each of the plurality of pixels displays a grayscale gk which satisfies 0≦
gk≦
gn, where gk and gn are integers not less than zero and a larger value of gk corresponds to higher brightness, relationships Δ
V12 (gk)>
0 volts and Δ
V12 (gk)≧
Δ
V12 (gk+1) are satisfied at least in a range 0<
gk≦
n−
1 if it is assumed that Δ
V12 (gk)=V1 (gk)−
V2 (gk), where V1 (gk) and V2 (gk) are root-mean-square voltages applied to the liquid crystal layers of the first sub-pixel and the second sub-pixel, respectively.
1 Assignment
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Accused Products
Abstract
To reduce viewing angle dependence of γ characteristics in a normally black liquid crystal display.
Each pixel 10 has a first sub-pixel 10a and a second sub-pixel 10b which can apply mutually different voltages to their respective liquid crystal layers. Relationships ΔV12 (gk)>0 volts and ΔV12 (gk)≧ΔV12 (gk+1) are satisfied at least in a range 0 <gk≦n−1 if it is assumed that ΔV12=V1−V2, where ΔV12 is the difference between root-mean-square voltage V1 applied to the liquid crystal layer of the first sub-pixel 10a and root-mean-square voltage V2 applied to the liquid crystal layer of the second sub-pixel 10b.
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Citations
32 Claims
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1. A liquid crystal display used in normally black mode, comprising a plurality of pixels each of which has a liquid crystal layer and a plurality of electrodes for applying voltage to the liquid crystal layer, wherein:
-
each of the plurality of pixels comprises a first sub-pixel and a second sub-pixel which can apply mutually different voltages to their respective liquid crystal layers; and
when each of the plurality of pixels displays a grayscale gk which satisfies 0≦
gk≦
gn, where gk and gn are integers not less than zero and a larger value of gk corresponds to higher brightness, relationships Δ
V12 (gk)>
0 volts and Δ
V12 (gk)≧
Δ
V12 (gk+1) are satisfied at least in a range 0<
gk≦
n−
1 if it is assumed that Δ
V12 (gk)=V1 (gk)−
V2 (gk), where V1 (gk) and V2 (gk) are root-mean-square voltages applied to the liquid crystal layers of the first sub-pixel and the second sub-pixel, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A liquid crystal display, comprising a plurality of pixels each of which has a liquid crystal layer and a plurality of electrodes for applying an electric field to the liquid crystal layer, wherein:
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the plurality of pixels are arranged in a matrix (rp, cq) with a plurality of rows (1 to rp) and plurality of columns (1 to cq) and each pixel is expressed as P (p, q), where 1≦
p≦
rp and 1≦
q≦
cq;
each of the plurality of pixels has at least two sub-pixels SPa (p, q), SPb (p, q), etc. arranged in the column direction; and
the at least two sub-pixels differ from each other in brightness when displaying an intermediate grayscale, and the position of the brightest of the at least two sub-pixels arranged in the column direction changes periodically in the row direction in the case of a pixel in an arbitrary row, but it is constant in the case of a pixel in an arbitrary column. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification