LCD panel capable of compensating the feed-through voltage
An LCD panel transmits the display data to sub-pixels in a zigzag pattern through a data line. The variation of the feed-through voltages of the sub-pixels may be modified by adjusting the ratios of the channel widths and the channel lengths of the TFTs in the sub-pixels to some predetermined ratios, or by adjusting the compensation capacitance to the coupling capacitance of the TFTs of the sub-pixels.
1. A liquid crystal display (LCD) panel capable of compensating a feed-through voltage, comprising:
a first sub-pixel, comprising:
a first storage capacitor; and
a first thin film transistor (TFT) including:
a first end electrically coupling to a first data line;
a second end electrically coupling to the first storage capacitor; and
a control end electrically coupling to a first scan line;
wherein a ratio of a channel width and a channel length of the first TFT is a first ratio;
a second sub-pixel, comprising:
a second storage capacitor; and
a second TFT including:
a first end electrically coupling to the second end of the first TFT;
a second end electrically coupling to the second storage capacitor; and
a control end electrically coupling to a second scan line;
wherein a ratio of a channel width and a channel length of the second TFT is a second ratio; and
a third sub-pixel, comprising:
a third storage capacitor; and
a third TFT including:
a first end electrically coupling to the second end of the second TFT;
a second end electrically coupling to the third storage capacitor; and
a control end electrically coupling to a third scan line;
wherein a ratio of a channel width and a channel length of the third TFT is a third ratio.
2. The LCD panel of claim 1 , wherein the first ratio is greater than the second ratio, and the second ratio is greater than the third ratio.
3. The LCD panel of claim 1 , wherein the channel lengths of the first TFT, the second TFT, and the third TFT are the same.
4. The LCD panel of claim 1 , wherein the ratio of the first ratio, the second ratio, and the third ratio is 12:6:5.
5. The LCD panel of claim 1 , wherein the third ratio is about 0.7.
6. The LCD panel of claim 1 , further comprising:
a fourth sub-pixel, comprising:
a fourth storage capacitor; and
a fourth TFT including:
a first end electrically coupling to a second data line;
a second end electrically coupling to the fourth storage capacitor; and
a control end electrically coupling to the first scan line;
wherein a ratio of a channel width and a channel length of the fourth TFT is the first ratio;
a fifth sub-pixel, comprising:
a fifth storage capacitor; and
a fifth TFT, including:
a first end electrically coupling to the second end of the fourth TFT;
a second end electrically coupling to the fifth storage capacitor; and
a control end electrically coupling to the second scan line;
wherein a ratio of a channel width and a channel length of the fifth TFT is the second ratio; and
a sixth sub-pixel, comprising:
a sixth storage capacitor; and
a sixth TFT, including:
a first end electrically coupling to the second end of the fifth TFT;
a second end electrically coupling to the sixth storage capacitor; and
a control end electrically coupling to the third scan line;
wherein a ratio of a channel width and a channel length of the sixth TFT is the third ratio.
7. The LCD panel of claim 1 , further comprising:
a seventh sub-pixel, comprising:
a seventh storage capacitor; and
a seventh TFT including:
a first end electrically coupling to the first data line;
a second end electrically coupling to the seventh storage capacitor; and
a control end electrically coupling to the second scan line;
wherein a ratio of a channel width and a channel length of the seventh TFT is the first ratio;
an eighth sub-pixel, comprising:
an eighth storage capacitor; and
an eighth TFT including:
a first end electrically coupling to the second end of the seventh TFT;
a second end electrically coupling to the eighth storage capacitor; and
a control end electrically coupling to the third scan line;
wherein a ratio of a channel width and a channel length of the eighth TFT is the second ratio; and
a ninth sub-pixel, comprising:
a ninth storage capacitor; and
a ninth TFT, including:
a first end electrically coupling to the second end of the eighth TFT;
a second end electrically coupling to the ninth storage capacitor; and
a control end electrically coupling to a fourth scan line;
wherein a ratio of a channel width and a channel length of the ninth TFT is the third ratio.