Title:
DRIVING CHIP, DISPLAY APPARATUS AND BONDING RESISTOR TEST SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/206894
Kind Code:
A1
Abstract:
A driving chip (100), a display apparatus and a bonding resistor test system. The driving chip (100) comprises at least two first connection terminals (110), and the driving chip (100) internally comprises a resistance measurement circuit (120), wherein a first end (A1) of the resistance measurement circuit (120) is connected to one first connection terminal (110), and a second end (A2) of the resistance measurement circuit is connected to the other first connection terminal (110). The resistance measurement circuit (120) comprises a current output module (121), a voltage measurement module (122) and a resistance calculation module (123), wherein a detection current is directly provided by the current output module (121) in the driving chip (100), and the voltage detection module (122) in the driving chip (100) can measure the voltage at an output end of the current output module (121), and the resistance calculation module (123) can automatically calculate a bonding resistance according to the voltage at the output end of the current output module (121) and the detection current, without the need of using a test fixture provided with a probe, which is beneficial to saving on the costs for the test fixture and is beneficial to shortening the time taken for a test, thereby facilitating the improvement of the production efficiency.
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Inventors:
WANG FAYONG (CN)
CHEN XINQUAN (CN)
CHEN XINQUAN (CN)
Application Number:
PCT/CN2022/115875
Publication Date:
November 02, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
KUNSHAN GOVISIONOX OPTOELECTRONICS CO LTD (CN)
International Classes:
G01R27/14
Foreign References:
| CN114792498A | 2022-07-26 | |||
| CN213302427U | 2021-05-28 | |||
| CN212675034U | 2021-03-09 | |||
| CN108594017A | 2018-09-28 | |||
| US20200225275A1 | 2020-07-16 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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