Display Panel Sense Compensation Circuit for Lateral Texture Elimination
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Solution Overview
Problem
Existing display technologies face challenges in maintaining accurate real-time sense compensation, particularly when dynamic and static attributes of a picture change rapidly, leading to visible lateral textures in the displayed image.
Innovation Solution
A display panel incorporating a sense compensation circuit, a detection unit, and a compensator that detects changes in dynamic and static attributes of a picture over a preset time period. When changes are detected, the compensator either skips compensation or turns off the sense function for the next preset time period, ensuring accurate real-time sense compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-time sense compensation is continuously performed, then display accuracy is improved, but lateral textures appear when picture attributes change rapidly
Solution Approach 1:
The patent applies dynamics by making the sense compensation function adjustable and controllable based on picture content characteristics. The detection unit monitors picture attributes (brightness, contrast, complexity) and dynamically adjusts whether sense compensation is performed, transitioning the system from a static always-on compensation mode to a dynamic conditional mode that adapts to different picture scenarios, thereby eliminating lateral textures while maintaining accuracy when needed
Solution Approach 2:
The patent implements feedback through the detection unit that continuously monitors picture attributes and provides feedback to control the sense compensation circuit. This closed-loop feedback mechanism detects changes in picture content and adjusts the compensation operation accordingly, preventing lateral textures from appearing when picture attributes change rapidly while maintaining compensation accuracy during stable display periods
2Manufacturing precision
If sense compensation is performed during every preset time period, then display quality is improved, but processing overhead increases
Solution Approach 1:
The patent applies partial action by performing sense compensation only when necessary rather than continuously. The detection unit determines whether picture attributes have changed, and sense compensation is performed only during periods when picture content is stable. This partial execution of compensation operations reduces processing overhead and time consumption while maintaining display quality by focusing compensation efforts on periods where they are most beneficial
Data Source
AI summary
The display panel includes a plurality of pixel units and a sense compensation circuit; and a pixel unit includes a plurality of sub-pixels; a sub-pixel includes a pixel drive circuit and an element to be driven; the display panel further includes: a detection unit and a compensator; the sense compensation circuit is configured to sense the electrical characteristics of said element at a non-active time; the detection unit is configured to detect whether dynamic and static attributes of a picture displayed in a previous preset time period are changed, and send a first notification to the compensator when the dynamic and static attributes are changed; the compensator is configured to receive the first notification and not, according to the sense result of the sense compensation circuit in the previous preset time period, compensate for a picture displayed in a next preset time period.