Color spot compensation image signal generation device, method and color spot defect repair system

Abstract

The invention discloses a Mura compensation picture signal generation apparatus and method, and a Mura defect repairing system. The Mura compensation picture signal generation apparatus comprises a data analysis module used for analyzing image data, first Mura compensation data and synthesis information from host computer data; an image frame generation module used for converting the image data to background image data; a Mura compensation data processing module used for performing mapping processing on the first Mura compensation data and generating second Mura compensation data with the same resolution as the background image data; and a Mura compensation picture signal synthesis module used for superposing the second Mura compensation data to the background image data according to the synthesis information to obtain Mura compensation picture signals. According to the apparatus and method, and the system, through simulation of functions of different specifications of Mura compensation chips, Mura repair data can be converted to the Mura compensation picture signals capable of being identified by all specifications of plane display modules in real time.

Description

Technical field [0001] The present invention relates to the field of display technology, and more specifically, to a Mura compensation image signal generating device and method, and a Mura defect repair system. Background technique [0002] Flat-panel displays have the advantages of high resolution, high brightness, and no geometric distortion. At the same time, due to their small size, light weight and low power consumption, they are widely used in consumer electronics products that people use daily, such as TVs, computers, and mobile phones. , Tablet, etc. The flat panel display module is the main component of the flat panel display. Its manufacturing process is complex and requires nearly a hundred processes. Therefore, various display defects will inevitably occur during the manufacturing process, and the more common display defects are Mura (color spot) defects. The defect of Mura is that under the same light source and the same background color, the visual discomfort cause...

AI Technical Summary

Problems solved by technology

Mura defect is that under the same light source and the same background color, the visual perception of different colors or differences in brightness will bring visual discomfort to people and seriously affect the quality of flat-panel displays.

[0003] At present, there are relevant technologies specifically aimed at repairing the Mura defects of flat-panel display modules, such as the Chinese patent "Bad Display Repair System and Repair Method for Liquid Crystal Display Panels" (publication number CN103761933A), and the Chinese patent "A Method and Method for Eliminating Mura of Liquid Crystal Displays" "Device" (Patent No. CN201310695713.X), but these Mura defect repair technologies are to write the Mura repair data into the Flash IC of the flat display module to be repaired, and then the Mura compensation chip of the flat display module to be repaired is transferred from the Flash IC Read the Mura repair data in the Mura compensation chip and output it to the display panel to display the compensated picture. The Mura compensation chip is preset with the mapping mode of the Mura compensation data (such as 1*1, 4*4, 8*8, 16*16, etc. mode) and the synthesis algorithm of Mura compensation data and image data, and currently the Flash IC of the flat display module to be repaired generally uses a single SPI bus for reading and writing. Due to the limitation of the SPI bus bandwidth, the Mura repair data is burnt to the It takes a long time to meet the needs of quick repair of Mura defects in the flat panel display module production line

In addition, existing image signal generators do not have the function of converting mura repair data into mura compensated image signals

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