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MIPI module test method and test system realizing two modes

A technology of module testing and mode, applied in nonlinear optics, instruments, optics, etc.

Active Publication Date: 2015-02-18
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At this stage, the MIPI module test system is only applicable to MIPI modules in VIDEO mode. The solution for configuring the bridge chip is to use two independent channels of SPI channel and RGB data channel to transmit parameter configuration data and image data respectively. However, the bridge chip works In COMMAND mode, the SPI interface used to transmit configuration parameters is closed, so the current MIPI module test system cannot perform point-screen testing of MIPI modules in COMMAND mode

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 Shown, a kind of test system of the present invention realizes two kinds of mode MIPI signals, comprises PG image generator 1, MCU2 and FPGA3, PG image generator 1 is connected with MCU2 and FPGA3 respectively, MCU2 and FPGA3 are connected by EBI interface, MCU2 and The bridge chip 4 is connected through the SPI interface, and the FPGA3 is connected with the MIPI module 5 through the bridge chip 4 .

[0028] PG image generator 1 is used to set the register configuration parameters and image data of VIDEO mode or COMMAND mode according to the type of MIPI module 5, and sends the register configuration parameters of VIDEO mode or COMMAND mode to MCU2 through 485 interface, and VIDEO mode or The image data in COMMAND mode is sent to FPGA3 through the LVDS interface.

[0029] The MCU2 is used to convert the regis...

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Abstract

The invention discloses an MIPI module test method and system realizing two modes, which are used for testing the configuration of an MIPI module at a VIDEO mode and a COMMAND mode before leaving a factory. The MIPI module test method and system have the advantages that the screen lighting test of the MIPI module at the VIDEO mode and the COMMAND mode can be realized; image data is generated through FPGA for the MIPI module at the COMMAND mode, the register configuration parameter of the MIPI module is forwarded by an MCU through the FPGA, and the register configuration parameter and the image data can be transmitted through the same channel; besides the basic dot-screen test function, various test functions such as Vcom adjustment, module ID reading and storage, MTP data edition and burning for the MIPI module at the COMMAND-mode are provided, and various requirements in the MIPI production process can be met.

Description

technical field [0001] The invention belongs to the display field and testing technical field of liquid crystal modules, and specifically refers to a MIPI module testing method and a testing system for realizing two modes. Background technique [0002] Display screens with MIPI interfaces are widely used in modern electronic devices such as smart phones and tablets. In the large-scale production process of MIPI display modules, the configuration test of MIPI modules before leaving the factory is a very important link. It is necessary to use the technology of reading and setting the internal registers of MIPI modules to complete the point screen test and Vcom adjustment. , MTP burning and other production processes. In VIDEO mode or COMMAND mode, the bridge chip sends the input signal to the MIPI module display in VIDEO mode or COMMAND mode through the internal conversion mechanism. VIDEO mode refers to the mode in which the host transmits to the LCD module using real-time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
CPCG02F1/1309
Inventor 彭骞邹峰雷程程陈凯沈亚非
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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