Patent Application
20150042550
This application claims all benefits accruing under 35 U.S.C. §119 from Chinese Patent Application No. 201310341598.6, filed on Aug. 8, 2013 in the Chinese Intellectual Property Office, the content of which is hereby incorporated by reference.
The present disclosure relates to a display panel having a repairing structure.
A display panel include a display region included a plurality of pixel units and a periphery circuit region included a source driver and a gate driver. The source driver and the gate driver are configured to drive the pixel units to display images. The source driver is configured to provide a plurality of display data to the pixel units. The gate driver is configured to provide a plurality of gate signals to the pixel units capable of controlling the pixel unit to write in the display data. However, when one of the gate signals is abnormal, the display data is could not normally write into the pixel unit, and the display panel could not normally display images.
The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of at least one embodiment. In the drawings, like reference numerals designate corresponding parts throughout the various views.
Reference will be made to the drawings to describe various embodiments.
The periphery circuit region 103 is a non-display region. A gate driver 15, a plurality of first connection lines 17, a source driver 19 and a repairing structure 20 are positioned on the periphery circuit region 103. The gate driver 15 is electrically connected to the scan lines 11 via the first connection lines 17. Each of the first connection lines 17 is electrically connected to one of the scan lines 11. The gate driver 15 is configured to provide a plurality of gate signals to TFTs 12 through the first connection lines 17, and the gate signal is configured to sequentially select and turn on the TFTs 12. The source driver 19 is electrically connected to the TFTs 12 via the date lines 13. The source driver 19 is configured to provide a plurality of display data to the pixel electrodes 14 via the TFTs 12.
The repairing structure 20 includes a first repairing wire 21, a second repairing wire 23, a driving chip 25, a flexible printed circuit board (FPC) 27 and a plurality of second connection lines 29. The first repairing wire 21 and the second repairing wire 23 are positioned on the periphery circuit region 103 and are parallel to the data lines 13. The first repairing wire 21 and the second repairing wire 23 are intersected with the first connection lines 17 and insulated from each other. The FPC 27 is located at one end of the first repairing wire 21 and the second repairing wire 23. The driving chip 25 is positioned on the FPC 21. In this embodiment, the driving chip 25, the FPC 27 and the source driver 19 are positioned at the same side of the display panel 10. The plurality of the second connection lines 29 and the gate driver 15 are positioned at the same side of the liquid crystal display panel 10, and the first connection lines 17 are parallel to the second connection lines 29.
Referring to
The plurality of shift registers 151 defines a total n stages shift registers R1˜Rn. The output pin Out of the ith stage shift register Ri is electrically connected to the first input pin Stv of the (i+1)th shift register Ri+1, where 1<i<n. Therefore, the gate signal provided by the ith stage shift register Ri is input into the first input pin Stv of the (i+1)th stage shift register Ri+1, and is used as the starting signal of the (i+1)th stage shift register Ri+1. For example, the output pin Out of the first stage shift register R1 is electrically connected to the first input pin Stv of the second stage shift register R2, and the gate signal provide by the first stage shift register R1 is input into the first input pin Stv of the second stage shift register R2. Therefore, the gate signal provide by the first stage shift register R1is used as the starting signal Stv of the second stage shift register R2.
The driving chip 25 is configured to provide a repairing gate signal and a repairing driving control signal. The first repairing wire 21 is configured to transmit the repairing gate signal; the second repairing wire 23 is configured to transmit the repairing driving control signal. Each of the second connection lines 29 is electrically connected to the second input pin Va of each of the shift register 151. When the gate signal is abnormal, such as the voltage value of the gate signal is off-rating, the driving chip 25 provides the repairing gate signal to the scan line 11 and the first connection lines 17 via the first repairing wire 21. When the driving control signal is abnormal, such as the voltage value of the driving control signal is off-rating, the driving chip 25 provides the repairing driving control signal to the second connection lines 29 via the second repairing wire 23.
Referring to
If the ith stage shift register Ri is damage, the gate signal provided by the shift register Ri is abnormal, the first repairing wire 21 is set to electrically connect to the first connection line 17 connected to the shift register Ri by a laser device. A first resistance R1 is weld between the driving chip 25 and the first repairing wire 21. The driving chip 25 is configured to provide the repairing gate signal to the first connection line 17 and the first output pin Stv of the (i+1)th stage shift register Ri+1. Therefore, the repairing gate signal is used as the gate signal Gi and the starting signal of the stage shift register Ri+1.
when the driving control signal input into the second input pin Va of the ith stage shift register Ri is abnormal, the second repairing wire 23 is set to electrically connect to the second connection line 29 by a laser device, a second resistance R2 is weld between the driving chip 25 and the second repairing wire 23. The driving chip 25 is configured to provide the repairing driving control signal to the connection line 29 via the second repairing wire 23. Therefore, the repairing driving control signal is used as the driving control signal of the ith stage shift register Ri.
The first repairing wire 21 is configured to transmit the repairing gate signal to the shift register 151 when the gate signal is abnormal. The second repairing wire 23 is configured to transmit the repairing driving control signal to the shift register 151 when the driving control signal is abnormal. Therefore, the repairing structure 20 can prevent the display panel 10 from been influenced by the damage of the shift register 151 of the gate driver 15.
It is to be further understood that even though numerous characteristics and advantages of preferred and exemplary embodiments have been set out in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only; and that changes may be made in detail, especially in the matters of shape, size and arrangement of parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2013103415986 | Aug 2013 | CN | national |
