Liquid crystal display device and driving method for liquid crystal display device
First Claim
Patent Images
1. A liquid crystal display device comprising:
- a liquid crystal panel having substrates sandwiching a liquid crystal layer therebetween;
a plurality of unit pixels disposed on said one of said substrates;
a plurality of pixels formed in said unit pixels;
a plurality of sub-pixels formed in said pixels; and
a driving device which drives said sub-pixels so that said sub-pixels have different gradation-brightness value characteristics from each other.
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Abstract
In a liquid crystal display device where each unit pixel p arranged on a liquid crystal panel 101A is constituted by a plurality of pixels p1, p2, and p3, the pixels p1, p2, and p3 are divided into sub-pixels p11 and p12, sub-pixels p21, and p22, and sub-pixels p31 and p32, respectively. The liquid crystal display device is provided with driver ICs 201 and 202 for driving the sub-pixels p11, p21, and p31, and the sub-pixels p12, p22, and p32 constituting the pixels so that different gradation-brightness value characteristics may be given. Due to this, multi-gradation display can be performed.
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Citations
20 Claims
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1. A liquid crystal display device comprising:
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a liquid crystal panel having substrates sandwiching a liquid crystal layer therebetween;
a plurality of unit pixels disposed on said one of said substrates;
a plurality of pixels formed in said unit pixels;
a plurality of sub-pixels formed in said pixels; and
a driving device which drives said sub-pixels so that said sub-pixels have different gradation-brightness value characteristics from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A liquid crystal display device comprising:
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a pair of substrates;
a liquid crystal layer disposed between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed on one of said pair of substrates and overlapped with said plurality of gate lines;
unit pixels formed in a matrix shape of said plurality of gate lines and said plurality of drain lines;
wherein said unit pixels having a plurality of pixels, and said plurality of pixels further having a plurality of sub-pixels;
a driving device applying a voltage to said plurality of sub-pixels;
wherein said driving device including a plurality of drivers which generate outputs for said sub-pixels connected to a same gate line but to different drain lines which are adjacent; and
said sub-pixels having different gradation-brightness value characteristics from each other. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of driving a liquid crystal display device where a plurality of pixels constituting each unit pixel and each of said plurality of pixels divided into a first and a second sub-pixels, said method comprising:
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a step of supplying a first driver with a voltage changeable within a range of a predetermined voltage V2 to a predetermined voltage V1, as an input value of a gradation voltage for driving the first sub-pixel;
a step of supplying a second driver with a voltage changeable within a range of a predetermined voltage V3 and said predetermined voltage V1, as an input value of a gradation voltage for driving said second sub-pixel, and a relationship among said voltages V3, V2, and V1 represented by V2>
V3>
V1. - View Dependent Claims (18, 19, 20)
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Specification