Liquid crystal display device with repair function and repair type data format structure
View Patent ↗The present examples relate to a liquid crystal display device with a repair function. The present examples repair a defect of a line or a defect of a pixel, using a specialized data signal structure, wherein the data signal structure integrates channel data, which is required for channel driving of a liquid crystal display element, and repair amplifier data, which is used for repairing a defect of a line and/or a pixel. Thus, examples have a better repair function than an alternative liquid crystal display device.
1. A liquid crystal display device comprising:
a liquid crystal display and a display drive Integrated Circuit (IC);
a first input terminal and second input terminal located on the display drive IC;
a first repair amplifier connected to the first input terminal and a second repair amplifier connected to the second input terminal and located on the display drive IC, wherein the first repair amplifier and second repair amplifier are formed on a left side and a right side of the display drive IC, respectively; and
repair lines connected to respective output terminals of the first repair amplifier and the second repair amplifier, wherein a liquid crystal line or pixel of the liquid crystal display is repaired using one of the repair lines.
2. The liquid crystal display device of claim 1 , wherein the first repair amplifier comprises a first line repair amplifier and a first pixel repair amplifier connected to the first input terminal and the second repair amplifier comprises a second line repair amplifier and a second pixel repair amplifier connected to the second input terminal.
3. The liquid display device of claim 1 , wherein the input terminal of each of the first and second repair amplifiers is connected to a data bus.
4. The liquid display device of claim 3 , wherein the first and second repair amplifiers receive inputs of a channel data signal comprising channel data and repair amplifier data through the data bus.
5. The liquid display device of claim 4 , wherein the channel data signal comprises a first region of predetermined length and a second region formed comprising the channel data and the repair amplifier data.
6. The liquid display device of claim 5 , wherein the repair amplifier data is located on the front and/or back of the channel data in the second region.
7. The liquid display device of claim 5 , wherein the repair amplifier data comprises line repair amplifier data and pixel repair amplifier data.
8. The liquid display device of claim 7 , wherein the line repair amplifier data and the pixel repair amplifier data are each N bits in length, respectively.
9. The liquid display device of claim 5 , wherein the second region comprises more than two repair amplifier data.
10. The liquid display device of claim 5 , wherein the first region comprises control bits that select the operation of the first line repair amplifier and the first pixel repair amplifier or the second line repair amplifier and the second pixel repair amplifier and slew rate control bits that select a slew rate of an operating repair amplifier.
11. The liquid crystal display device of claim 10 , wherein the slew rate control bits are N bits in length.
12. The liquid crystal display device of claim 5 , wherein the repair amplifier data of the second region comprises R/G/B control bits that select Red (R), Green (G), Blue (B) values of a repair amplifier operating using a channel data signal applied to the repair amplifier.
13. The liquid crystal display device of claim 12 , comprising:
the R/G/B control bits that are each respectively N bits in length.
14. A method of repairing a liquid crystal display device using a repair type data format structure, comprising:
repairing a defect of a line or a pixel of the liquid crystal display device using the repair type data format structure, wherein the repair type data format structure comprises
a first region comprising a control bit that selects a line repair amplifier or a pixel repair amplifier and slew rate control bits, and
a second region comprising a channel data region and a repair amplifier data region.
15. The method of claim 14 , wherein the repair amplifier data region comprises a line repair amplifier data region and a pixel repair amplifier data region.
16. The method of claim 15 , wherein the repair amplifier data region comprises R/G/B control bits that select Red (R), Green (G), Blue (B) values of a pixel or a line.
17. The method of claim 14 , wherein the repair amplifier data region is located on one of a front terminal, a back terminal, or front and back terminals of the channel data region.
18. A liquid crystal display device comprising:
a liquid crystal display; and
a display drive IC (Integrated Circuit), located on the liquid crystal display, comprising a first input terminal comprising a first repair amplifier and a second input terminal comprising a second repair amplifier, wherein the first repair amplifier and second repair amplifier are formed on a left side and a right side of the display drive IC, respectively, wherein the liquid crystal display receives a repair signal from the first repair amplifier or the second repair amplifier and repairs a liquid crystal line or pixel of the liquid crystal display using the repair signal.
19. The liquid crystal display device of claim 18 , wherein the repair signal is received using repair lines that are connected to respective output terminals of the first repair amplifier and the second repair amplifier.