Display module test platform

Patent metadata

Field	Value
Publication number	US-11624788-B2
Application number	US-202016831858-A
Country	US
Kind code	B2
Filing date	Mar 27, 2020
Priority date	Sep 19, 2018
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

The present application relates to the field of display technology, and discloses a display module test platform, including a core processor. The core processor is capable of supporting installation of a terminal operating system. A display output terminal of the core processor is connected to a display module to be tested. The display module to be tested includes a touch structure. The touch structure and the core processor communicate with each other via an Inter-Integrated Circuit (I2C) bus.

First claim

The invention claimed is:

1. A display module test platform, comprising:
a core processor, supporting installation of a terminal operating system, wherein a display output terminal of the core processor is connected to a display module to be tested, the display module to be tested comprises a touch structure, and the touch structure and the core processor communicate with each other via an Inter-Integrated Circuit (I 2 C) bus,
the display output terminal of the core processor is connected to the display module to be tested via a bridge module, the bridge module and the core processor are connected by the I 2 C bus,
wherein the bridge module is configured to convert an Embedded Display Port (eDP) signal sent by the core processor into a Mobile Industry Processor Interface (MIPI) signal recognizable by the display module to be tested, after performing an eDP link training stage.

2. The display module test platform according to claim 1 , further comprising:
a memory, connected to the core processor, and configured to store a correspondence relation between a model of a display module and configuration parameters, wherein
the core processor is configured to: determine, according to the correspondence relation stored in the memory, configuration parameters corresponding to a model of the display module to be tested, and output the configuration parameters to the display module to be tested.

3. The display module test platform according to claim 1 , further comprising an acquisition module, connected to the display module to be tested and the core processor, and configured to: acquire a voltage and a current of the display module to be tested, and send the voltage and current to the core processor.

4. The display module test platform according to claim 1 , wherein the terminal operating system is any one of an Android operating system, an iOS operating system, a Windows operating system, and a Linux operating system.

5. The display module test platform according to claim 1 , further comprising:
an input interface, connected to the core processor and an input device respectively, wherein the input device is configured to control the display module to be tested.

6. The display module test platform according to claim 5 , wherein the input interface is an On-The-Go interface, and the input device connected to the On-The-Go interface is a mouse and/or a keyboard.

7. The display module test platform according to claim 1 , further comprising:
a Universal Asynchronous Receiver-Transmitter interface, connected to the core processor, and configured to return test information of the display module to be tested.

8. The display module test platform according to claim 1 , further comprising:
a storage interface, connected to the core processor and a storage device respectively, wherein the storage device is configured to store test images and test videos.

9. The display module test platform according to claim 1 , wherein the core processor is a processor based on an Advanced Reduced Instruction Set Computing Machine architecture.

10. The display module test platform according to claim 1 , further comprising:
a power supply, connected to the display module to be tested and the core processor respectively, and configured to supply power to the display module to be tested and the core processor.

11. The display module test platform according to claim 2 , further comprising an acquisition module, connected to the display module to be tested and the core processor respectively, and configured to: acquire a voltage and a current of the display module to be tested, and send the voltage and current to the core processor.

12. The display module test platform according to claim 11 , further comprising:
an input interface, connected to the core processor and an input device respectively, wherein the input device is configured to control the display module to be tested.

13. The display module test platform according to claim 12 , further comprising:
a Universal Asynchronous Receiver-Transmitter interface, connected to the core processor, and configured to return test information of the display module to be tested.

14. The display module test platform according to claim 13 , further comprising:
a storage interface, connected to the core processor and a storage device respectively, wherein the storage device is configured to store test images and test videos.

15. The display module test platform according to claim 14 , further comprising:
a power supply, connected to the display module to be tested and the core processor respectively, and configured to supply power to the display module to be tested and the core processor.

16. The display module test platform according to claim 1 , wherein the bridge module is a bridge circuit or a bridge chip.

17. The display module test platform according to claim 1 , further comprising:
a power supply, connected to the bridge module to supply power to the bridge module.

18. The display module test platform according to claim 1 , further comprising:
an Embedded Display Port bus, wherein the core processor loads a driver of the Embedded Display Port bus.

19. The display module test platform according to claim 1 , wherein
the bridge module requests the I 2 C bus to perform initialization.

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Wang Yuqing
• Chen Feng

Classifications

• G06F13/4282

  on a serial bus, e.g. I2C bus, SPI bus (on daisy chain buses G06F13/4247) · CPC title

• G06F3/04883

  for inputting data by handwriting, e.g. gesture or text · CPC title

• G06F13/4081 Primary

  Live connection to bus, e.g. hot-plugging (current or voltage limitation during live insertion H02H9/004) · CPC title

• G06F11/2289

  by configuration test · CPC title

• G09G2320/0693

  Calibration of display systems · CPC title