Method and image processing device for mura compensation on display panel
AssigneeNovatek Microelectronics Corp.
InventorsWenhui Yu, Xiaoming Bu, Chih-Yuan Yang
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Abstract
A method and an image processing device for mura detection on a display are proposed. The method includes the following steps. A compressed DeMura table corresponding to the display panel is obtained. Decompression is performed on the compressed DeMura table to generate a decompressed DeMura table. Upsampling is performed on the decompressed DeMura table to generate a reconstructed DeMura table. Mura compensation is performed on the display panel based on the reconstructed DeMura table.
Claims21
A method for Mura compensation on a display panel, comprising:
- obtaining a compressed DeMura table corresponding to the display panel;
- performing decompression on the compressed DeMura table to generate a decompressed DeMura table;
- performing upsampling on the decompressed DeMura table to generate a reconstructed DeMura table;
- and
- performing Mura compensation on the display panel based on the reconstructed DeMura table,
- wherein the step of performing upsampling on the decompressed DeMura table to generate the reconstructed DeMura table comprises:
- performing upsampling on the decompressed DeMura table to generate an upsampled DeMura table;
- determining whether the display panel is an RGB display panel or an RGBG display panel;
- in response to the display panel being the RGB display panel, setting the upsampled DeMura table as the reconstructed DeMura table;
- and
- in response to the display panel being the RGBG display panel, reordering the upsampled DeMura table to generate the reconstructed DeMura table.
(canceled)
An image processing device comprising:
- a decompression circuit, configured to obtain a compressed DeMura table corresponding to a display panel and perform decompression on the compressed DeMura table to generate a decompressed DeMura table;
- an upsample circuit, configured to perform upsampling on the decompressed DeMura table to generate a reconstructed DeMura table, wherein the upsample circuit performs upsampling on the decompressed DeMura table to generate an upsampled DeMura table;
- a compensation circuit, configured to perform Mura compensation on the display panel based on the reconstructed DeMura table;
- and
- an inverse-reorder circuit, configured to:
- determine whether the display panel is an RGB display panel or an RGBG display panel;
- in response to the display panel being the RGB display panel, set the upsampled DeMura table as the reconstructed DeMura table;
- and
- in response to the display panel being the RGBG display panel, reorder the upsampled DeMura table to generate the reconstructed DeMura table.
(canceled)
Dependencies are inferred from the claim text.