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US 8,570,262 B2Granted
Liquid crystal display with brightness-compensated pixels
AssigneeSamsung Display Co., Ltd.
InventorsSeung-Kyu Lee, Dong-Hoon Lee, Chul-Ho Kim
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Abstract
A liquid crystal display (LCD) is disclosed. The pixels of the LCD each have storage capacitors, and the capacitances of the storage capacitors of pixels of different colors are different.
Claims9
A liquid crystal display (LCD), comprising:
- a pixel unit including data lines, gate lines, and storage lines;
- and
- a plurality of pixels coupled to the data lines, gate lines and storage lines, wherein each of the pixels comprises:
- a thin film transistor (TFT) coupled to one of the gate lines and to one of the data lines,
- a liquid crystal capacitor coupled to the TFT, the liquid crystal capacitor having a terminal connected to a storage electrode, and
- a storage capacitor formed by one of the storage lines and the storage electrode overlapping the one storage line,
- wherein each pixel is configured to display light of one of a plurality of colors,
- wherein the areas of overlapping storage electrodes and storage lines of pixels of different colors are different from each other,
- wherein the colors are red, green, and blue, and
- wherein, in the blue pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 1.67,
- wherein, in the green pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 3.03, and
- wherein, in the red pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 4.09.
9 more elements
A liquid crystal display (LCD), comprising:
- a plurality of pixels, each pixel configured to selectively transmit light for one of a plurality of colors, and each pixel comprises:
- a liquid crystal capacitor having a terminal connected to a storage electrode,
- a thin film transistor (TFT) configured to selectively connect a data signal to the storage electrode, and
- a storage line configured to be selectively driven with a boost voltage,
- wherein the storage electrode overlaps the storage line at selected portions so as to form a storage capacitor configured to feed the boost voltage to the liquid crystal capacitor,
- wherein the capacitance of the storage capacitors of the pixels of one of the colors is different from the capacitance of the storage capacitors of the pixels of another of the colors,
- wherein the colors are red, green, and blue and,
- wherein, in the blue pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 1.67,
- wherein, in the green pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 3.03, and
- wherein, in the red pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 4.09.
7 more elements
A liquid crystal display (LCD), comprising:
- a plurality of pixels, each pixel configured to selectively transmit light for one of a plurality of colors, and each pixel comprises:
- a liquid crystal capacitor,
- a thin film transistor (TFT) configured to selectively connect a data signal to the liquid crystal capacitor, and
- a storage capacitor configured to feed a boost voltage to the liquid crystal capacitor,
- wherein the capacitance of the storage capacitors of the pixels of one of the colors is different from the capacitance of the storage capacitors of the pixels of another of the colors,
- wherein the colors are red, green, and blue and,
- in the blue pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 1.67,
- wherein, in the green pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 3.03, and
- wherein, in the red pixels, the ratio of the capacitance of the storage capacitor to the capacitance of the liquid crystal capacitor is 4.09.
6 more elements
Dependencies are inferred from the claim text.