Image processing apparatus and method

By recording the sampled RGB values ​​and calibrated RGB differences or sampled grayscale values ​​and calibrated grayscale differences in a lookup table, the problem of high storage requirements for TCON chips and IP modules is solved, thereby reducing manufacturing costs.

CN115345949BActive Publication Date: 2026-06-09HAINING ESWIN IC DESIGN CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAINING ESWIN IC DESIGN CO LTD
Filing Date
2022-08-05
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing display devices require large amounts of RAM and SRAM to store lookup tables in their TCON chips and IP modules, resulting in high manufacturing costs.

Method used

By recording the sampled RGB values ​​and calibrated RGB differences or the sampled grayscale values ​​and calibrated grayscale differences in the lookup table, the amount of data in the target lookup table is reduced, thereby reducing the storage requirements of the TCON chip.

Benefits of technology

This effectively reduced the manufacturing cost of the TCON chip and decreased the capacity requirement for RAM.

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Abstract

The application discloses an image processing device and method, and relates to the technical field of color calibration. The device comprises an acquisition unit, which is used for acquiring a to-be-displayed image, wherein the to-be-displayed image comprises a plurality of pixel points; a first determination unit, which is used for determining a conversion RGB value corresponding to each pixel point according to an original RGB value corresponding to each pixel point; a second determination unit, which is used for determining a calibration RGB difference value corresponding to each pixel point according to the conversion RGB value corresponding to each pixel point and a target lookup table; a third determination unit, which is used for determining a calibration RGB value corresponding to each pixel point according to the conversion RGB value corresponding to each pixel point and the calibration RGB difference value; and an output unit, which is used for outputting the to-be-displayed image according to the calibration RGB value corresponding to each pixel point.
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