Device and method for generating mipi graphics signal with adaptive resolution

Abstract

The invention relates to a resolution-adaptive MIPI (mobile industry processor interface) graph signal generation device. The resolution-adaptive MIPI graph signal generation device includes an image frame generating module, an image buffer module, an RGB synchronization signal generating module, an RGB image data generating module, an RGB image synchronization module, a multi-link MIPI liquid crystal display module single screen and split screen data generating module, an MIPI data buffer module, an MIPI data conversion module, an MIPI signal output module, an MIPI parameter analysis module and an upper layer interface module. With the resolution-adaptive MIPI graph signal generation device of the invention adopted, the generation of MIPI graphs with different resolutions can be realized. The resolution-adaptive MIPI graph signal generation device has strong compatibility.

Description

technical field [0001] The invention relates to the technical field of display and testing of MIPI (Mobile Industry Processor Interface, mobile industry processor interface) modules, and specifically refers to a resolution-adaptive MIPI graphic signal generation device and method. [0002] technical background [0003] As the resolution of MIPI display modules increases, the display effect becomes clearer and clearer, and the technical requirements for the development, production, and testing of modules are also getting higher and higher. Therefore, in the display and testing of modules , not only the working status of each pixel of the module needs to be detected, but also the overall display effect of the module needs to be detected. At present, the types of image screens for display quality inspection of MIPI modules mainly include BMP (Bitmap, image file format) images, logic screens, etc. [0004] In the prior art, on the one hand, the video transmission signal is direc...

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Problems solved by technology

[0004] In the prior art, on the one hand, the video transmission signal is directly converted into a MIPI signal, both of which use the input video transmission clock as the conversion clock, and both work in this clock domain, resulting in the converted output video signal being interfered by transmission and delay jitter, resulting in problems such as flickering, errors, and instability in the screen; on the other hand, the existing technology is limited by product implementation technology (such as signal synchronization, data segmentation, multi-channel control, etc.), and can only be used for a certain One or a certain type of resolution MIPI module for image signal conversion and point screen, for example, either can only point screen 4Lane 1280x800 resolution, or can only point screen 8Lane left and right split screen 1440x2560 resolution, can not automatically adapt to different pairs Display module types and modules with different resolutions for point-to-screen support

For the manufacturers and users of MIPI modules, it is necessary to produce or use various screens, which makes them have to use various conversion devices for this purpose, resulting in the production, testing, and development of MIPI modules. , Use and other aspects of the high cost, troublesome operation, complex use, difficult maintenance, low efficiency

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