Display panel and detection method thereof

• US 9,829,729 B2
• Filed: 05/16/2014
• Issued: 11/28/2017
• Est. Priority Date: 10/22/2013
• Status: Expired due to Fees

• Current Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: Li, Ming, Kim, Yong Sub, Liu, Xiaotao
• Primary Examiner(s): Hollington, Jermele M
• Application Number:
  US14/407,280
• Publication Number:
  US 20160282642A1
• Time in Patent Office: 1,292 Days
• Field of Search: 32476002
• CPC Class Codes: G02F 1/1309 Repairing; Testing
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/136254 Checking; Testing
• CPC Class Codes: G02F 1/136259 Repairing; Defects
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line

Abstract

A display panel and a detection method thereof are provided. Wireless signals are transmitted to a gate-line wireless sensing electrode connected to gate lines and a data-line wireless sensing electrode connected to data lines that are preset at a dummy zone of the display panel (1, 1′), respectively, through wireless signal transmitting electrodes (6) connected to a transmitter, so as to generate a gate-line detection signal and a data-line detections signal, thereby realizing detection of the display panel. The gate-line wireless sensing electrode and the data-line wireless sensing electrode are formed at the dummy zone on the array substrate (1, 1′) in the technological process of producing the gate lines and the data lines of the array substrate of the display panel, respectively. Therefore, poorness of a display can be detected without cutting of a display panel (1, 1′), poorness is detected early, and repair is made timely. Thus, the issue that a defective product flows to a subsequent process and a waste of cost results from it is avoided.

Claims

1. A detection method of a display panel comprising a plurality of display zones and a dummy zone between the plurality of display zones, comprising:

wireless signal transmitting electrodes, connected to a transmitter, transmitting wireless signals to a gate-line wireless sensing electrode connected to gate lines and a data-line wireless sensing electrode connected to data lines, so as to generate a gate-line detection signal and a data-line detection signal, wherein, the gate-line wireless sensing electrode and the data-line wireless sensing electrode are located at a dummy zone of the display panel which is to be discarded by cutting the display panel to separate the display zones,

wherein, the gate-line wireless sensing electrode and the data-line wireless sensing electrode are formed at the dummy zone on an array substrate of the display panel in process of producing the gate lines and the data lines of the array substrate, respectively.

2. The detection method of the display panel according to claim 1, wherein, wireless signals at different frequencies are transmitted by the wireless signal transmitting electrodes to the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

3. The detection method of the display panel according to claim 1, wherein, the gate-line wireless sensing electrode includes a first gate-line wireless sensing sub-electrode connected to the gate lines in odd-numbered rows and a second gate-line wireless sensing sub-electrode connected to the gate lines in even-numbered rows.

4. The detection method of the display panel according to claim 1, wherein, the data-line wireless sensing electrode includes N data-line wireless sensing sub-electrodes, the data lines for sub-pixels in the same color are connected to the same one of the data-line wireless sensing sub-electrodes, the data lines for sub-pixels in different colors are connected to different ones of the data-line wireless sensing sub-electrodes, and the N is the total number of color of the sub-pixels.

5. The detection method of the display panel according to claim 1, wherein, wireless signals differing in both the frequency and the strength are transmitted by the wireless signal transmitting electrodes to different data-line wireless sensing sub-electrodes, respectively.

6. The detection method of the display panel according to claim 1, wherein, before transmission of wireless signals, the method further includes setting the wireless signal transmitting electrodes at locations of a color filter substrate of the display panel in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

7. The detection method of the display panel according to claim 1, wherein, before transmission of wireless signals, the method further includes setting the wireless signal transmitting electrodes at locations of the array substrate of the display panel in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode.

8. The detection method of the display panel according to claim 1, wherein, before transmission of wireless signals, the method further includes, placing an upper polarizer supported by a first transparent plate on a color filter substrate side of the display panel, placing a lower polarizer supported by a second transparent plate on an array substrate side of the display panel, and setting the wireless signal transmitting electrodes at locations on the second transparent plate in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

9. The detection method of the display panel according to claim 1, wherein, before transmission of wireless signals, the method further includes, placing an upper polarizer supported by a first transparent plate on a color filter substrate side of the display panel, placing a lower polarizer supported by a second transparent plate on an array substrate side of the display panel, and setting the wireless signal transmitting electrodes at locations on the first transparent plate in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

10. The detection method of the display panel according to claim 1, wherein, before transmission of wireless signals, the method further includes, placing a transparent plate on a color filter substrate side of the display panel, and setting the wireless signal transmitting electrodes at locations on the transparent plate in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

16. The detection method of the display panel according to claim 2, wherein, the gate-line wireless sensing electrode includes a first gate-line wireless sensing sub-electrode connected to the gate lines in odd-numbered rows and a second gate-line wireless sensing sub-electrode connected to the gate lines in even-numbered rows.

17. The detection method of the display panel according to claim 2, wherein, the data-line wireless sensing electrode includes N data-line wireless sensing sub-electrodes, the data lines for sub-pixels in the same color are connected to the same one of the data-line wireless sensing sub-electrodes, the data lines for sub-pixels in different colors are connected to different ones of the data-line wireless sensing sub-electrodes, and the N is the total number of color of the sub-pixels.

18. The detection method of the display panel according to claim 2, wherein, wireless signals differing in both the frequency and the strength are transmitted by the wireless signal transmitting electrodes to different data-line wireless sensing sub-electrodes.

19. The detection method of the display panel according to claim 2, wherein, before transmission of wireless signals, the method further includes setting the wireless signal transmitting electrodes at locations of a color filter substrate of the display panel in correspondence with the gate-line wireless sensing electrode and the data-line wireless sensing electrode, respectively.

20. The detection method of the display panel according to claim 1, wherein, the gate-line wireless sensing electrode and the data-line wireless sensing electrode are of a magnetic material.

11. A display panel, comprising a color filter substrate and an array substrate cell-assembled with each other, wherein,

the display panel includes a plurality of display zones and a dummy zone between the plurality of display zones, a gate-line wireless sensing electrode and a data-line wireless sensing electrode are provided within the dummy zone of the array substrate, the gate-line wireless sensing electrode is connected to gate lines on the array substrate, and the data-line wireless sensing electrode is connected to data lines on the array substrate, wherein, the dummy zone of the display panel is to be discarded by cutting the display panel to separate the display zones.

12. The display panel according to claim 11, wherein, the gate-line wireless sensing electrode and the data-line wireless sensing electrode are of a magnetic material.

13. The display panel according to claim 12, wherein,

the gate-line wireless sensing electrode and the data-line wireless sensing electrode are configured to transfer wireless electromagnetic signals to electric signals.

14. The display panel according to claim 11, wherein, the gate-line wireless sensing electrode includes a first gate-line wireless sensing sub-electrode and a second gate-line wireless sensing sub-electrode, the first gate-line wireless sensing sub-electrode is connected to gate lines in odd-numbered rows, and the second gate-line wireless sensing sub-electrode is connected gate lines in even-numbered rows.

15. The display panel according to claim 11, wherein, the data-line wireless sensing electrode includes a plurality of data-line wireless sensing sub-electrodes, and each of the data-line wireless sensing sub-electrodes is connected to data lines for driving sub-pixels in different colors, respectively.