Display driving method and display driving device

The display driving method and device address image quality issues in LCD VA panels by measuring luminance, calculating a unified LUT, and adjusting high and low gray values, improving viewing angle performance and color fidelity with reduced complexity and memory usage.

EP4760702A1Pending Publication Date: 2026-06-17LX SEMICON CO LTD
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
LX SEMICON CO LTD
Filing Date
2024-08-06
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Display panels with poor viewing angle performance suffer from image quality deterioration due to color fading, particularly in liquid crystal display (LCD) panels with vertical alignment (VA) technology, which have narrow viewing angles and require complex memory usage for separate high and low gray LUTs.

Method used

A display driving method and device that measures panel luminance, calculates a single Look Up Table (LUT) based on the measured luminance, and determines high and low gray values adaptively using integrated luminance compensation without separate LUTs, reducing memory usage and complexity.

Benefits of technology

The method and device improve viewing angle performance and color quality by adaptively controlling panel output intensity efficiently, enhancing image clarity and reducing artifacts without additional memory burden.

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Abstract

A display driving method according to embodiments may comprise the steps of: measuring the luminance of a panel; calculating a look up table (LUT) on the basis of the measured luminance; and calculating a low gray value and a high gray value for a target luminance on the basis of the LUT. A display driving device according to embodiments may comprise: a measurement unit for measuring the luminance of a panel; a first calculation unit for calculating a look up table (LUT) on the basis of the measured luminance; and a second calculation unit for calculating a low gray value and a high gray value for a target luminance on the basis of the LUT.
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