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demura Table data compression method and decompression method

A data compression and decompression technology, applied in static indicators, instruments, etc., can solve the problems of rising hardware costs, more data, and larger display panels, and achieve the effect of reducing hardware costs, reducing logic resources, and reducing size

Active Publication Date: 2021-08-31
SHENZHEN AIXIESHENG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the high demand for resolution and display effect, the size of the display panel is getting larger and larger, resulting in more and more data in the compensation table, and the larger the compensation table, the larger the storage device is required to store the data. storage, leading to higher hardware costs

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  • demura Table data compression method and decompression method

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Embodiment Construction

[0025] The technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] The terms "comprising" and "having" and any variations thereof appearing in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps, or units inherent in thes...

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Abstract

The present invention relates to the technical field of display panel compensation, in particular to a method for compressing and decompressing Demura Table data: saving the total number of rows M and the total number of columns N of Demura Table data, and expanding the Demura Table data into data with even rows and even columns, Constitute the first matrix; based on the data of the first matrix, calculate the corresponding average value of the 4 compensation data intersected by every two rows and two columns; arrange the calculated average values ​​in order to obtain a compressed Demura Table, Constitute the second matrix; based on the second matrix, select 4 adjacent data as a unit, and use a specific number to mark the data position in the unit; use the least square method to compare the four data of each unit and its corresponding Fit the marked value to obtain the corresponding parameter value; save the parameter value to the storage device.

Description

technical field [0001] The invention relates to the technical field of display panel compensation, in particular to a Demura Table data compression method and decompression method. Background technique [0002] Mura mainly refers to the phenomenon of uneven brightness in the display panel when displaying grayscale images. This phenomenon is mostly caused by adverse factors in the production process of the display panel. As the size of the display panel becomes larger, the requirements for the production technology of the panel are also higher and higher, and the probability of the Mura phenomenon on the panel also increases accordingly. Demura is actually a process of compensating and eliminating Mura. [0003] The commonly used process is: use the camera to capture the brightness of different grayscale images of the panel, and then obtain the Mura information in different grayscale planes, and then obtain the compensation value of grayscale according to the relationship be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G3/2074G09G2320/0285
Inventor 夏群兵孙雪强王治龙
Owner SHENZHEN AIXIESHENG TECH CO LTD
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