Liquid crystal display device
AssigneeHitachi Displays, Ltd.
InventorsTakahiro Ochiai, Tohru Sasaki, Tetsuya Nagata
Life of this patent
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Abstract
A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.
Claims10
A liquid crystal display device comprising:
- scanning lines extending in a lateral direction and aligned in a longitudinal direction;
- drain lines extending in the longitudinal direction and aligned in the lateral direction;
- a TFT substrate having pixels having TFTs and pixel electrodes, the pixels formed in areas enclosed by the drain lines and the scanning lines, the pixels constituting a first pixel, a second pixel, and a third pixel, respectively, depending on colors to which the respective pixels correspond, and being aligned in the lateral direction;
- an opposed substrate placed with a predetermined interval with respect to the TFT substrate;
- liquid crystal enclosed between the TFT substrate and the opposed substrate;
- and
- a column for defining the interval between the TFT substrate and the opposed substrate formed at a crossing point between one of the drain lines and one of the scanning lines corresponding to the first pixel, the one of the drain lines at the crossing point where the column is formed being wider than other portions thereof.
A liquid crystal display device comprising:
- scanning lines extending in a lateral direction and aligned in a longitudinal direction;
- drain lines extending in the longitudinal direction and aligned in the lateral direction;
- a TFT substrate having pixels having TFTs and pixel electrodes, the pixels formed in areas enclosed by the drain lines and the scanning lines, the pixels constituting a first pixel, a second pixel, and a third pixel, respectively, depending on colors to which the respective pixels correspond, and being aligned in the lateral direction;
- an opposed substrate placed with a predetermined interval with respect to the TFT substrate;
- liquid crystal enclosed between the TFT substrate and the opposed substrate;
- and
- a column for defining the interval between the TFT substrate and the opposed substrate formed at a crossing point between one of the drain lines and one of the scanning lines corresponding to the first pixel, the one of the scanning lines at the crossing point where the column is formed being wider than other portions thereof.
Dependencies are inferred from the claim text.