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. An LCD panel capable of compensating a feed-through voltage, comprising:
a first sub-pixel, comprising:
a first storage capacitor; and
a first 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 coupling capacitance and a first compensation capacitance exist between the second end and the control end of the first TFT;
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 the coupling capacitance and a second compensation capacitance exist between the second end and the control end of the second TFT; 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 the coupling capacitance exists between the second end and the control end of the third TFT.
2. The LCD panel of claim 1 , wherein the first compensation capacitance is greater than the second compensation capacitance.
3. The LCD panel of claim 2 , wherein a ratio of the second compensation capacitance and the first compensation capacitance is about 1:4 to 1:7.
4. The LCD panel of claim 3 , wherein a line width of the second end of the first TFT is greater than a line width of the second end of the third TFT in order to generate the first compensation capacitance.
5. The LCD panel of claim 4 , wherein a line width of the second end of the second TFT is greater than a line width of the second end of the third TFT in order to generate the second compensation capacitance.
6. The LCD panel of claim 5 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and control end of the fourth TFT;
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the fifth TFT; 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 the coupling capacitance exists between the second end and the control end of the sixth TFT.
7. The LCD panel of claim 6 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and the control end of the seventh TFT;
an eighth sub-pixel, including:
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the eighth TFT; and
a ninth sub-pixel, including:
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 the coupling capacitance exists between the second end and the control end of the ninth TFT.
8. The LCD panel of claim 1 , wherein a ratio of the second compensation capacitance and the first compensation capacitance is about 1:4 to 1:7.
9. The LCD panel of claim 1 , wherein a line width of the second end of the first TFT is greater than a line width of the second end of the third TFT in order to generate the first compensation capacitance.
10. The LCD panel of claim 9 , wherein a line width of the second end of the second TFT is greater than a line width of the second end of the third TFT in order to generate the second compensation capacitance.
11. The LCD panel of claim 10 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and control end of the fourth TFT;
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the fifth TFT; 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 the coupling capacitance exists between the second end and the control end of the sixth TFT.
12. The LCD panel of claim 11 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and the control end of the seventh TFT;
an eighth sub-pixel, including:
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the eighth TFT; and
a ninth sub-pixel, including:
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 the coupling capacitance exists between the second end and the control end of the ninth TFT.
13. The LCD panel of claim 1 , wherein a line width of the second end of the second TFT is greater than a line width of the second end of the third TFT in order to generate the second compensation capacitance.
14. The LCD panel of claim 13 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and control end of the fourth TFT;
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the fifth TFT; 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 the coupling capacitance exists between the second end and the control end of the sixth TFT.
15. The LCD panel of claim 14 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and the control end of the seventh TFT;
an eighth sub-pixel, including:
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the eighth TFT; and
a ninth sub-pixel, including:
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 the coupling capacitance exists between the second end and the control end of the ninth TFT.
16. 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 the coupling capacitance and the first compensation capacitance exist between the second end and control end of the fourth TFT;
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the fifth TFT; 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 the coupling capacitance exists between the second end and the control end of the sixth TFT.
17. The LCD panel of claim 16 , 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 the coupling capacitance and the first compensation capacitance exist between the second end and the control end of the seventh TFT;
an eighth sub-pixel, including:
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the eighth TFT; and
a ninth sub-pixel, including:
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 the coupling capacitance exists between the second end and the control end of the ninth TFT.
18. 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 the coupling capacitance and the first compensation capacitance exist between the second end and the control end of the seventh TFT;
an eighth sub-pixel, including:
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 the coupling capacitance and the second compensation capacitance exist between the second end and the control end of the eighth TFT; and
a ninth sub-pixel, including:
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 the coupling capacitance exists between the second end and the control end of the ninth TFT.
19. A liquid crystal display (LCD) panel capable of compensating a feed-through voltage, comprising:
a substrate; and
a plurality of pixels arranged on the substrate, a first pixel among the plurality of pixels including a first transistor having a first end, a second end and a control end, a second pixel among the plurality of pixels including a second transistor having a first end, a second end and a control end, wherein:
a coupling capacitance and a first compensation capacitance exist between the second end of the first transistor and the control end of the first transistor;
the coupling capacitance and a second compensation capacitance exist between the second end of the second transistor and the control end of the second transistor; and
the first compensation capacitance is different from the second compensation capacitance so that a driving ability of the first transistor is different from a driving ability of the second transistor.