Gamma Compensation for Display Areas Overlapping Electronic Modules
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Solution Overview
Problem
Display apparatuses with integrated electronic modules, such as camera modules, face challenges in maintaining consistent gamma values across different display areas, leading to luminance and color coordinate differences that affect display quality.
Innovation Solution
A display apparatus with separate gamma controllers for each display area, including a first gamma controller that adjusts luminance and color coordinates for the area overlapping the electronic module and a second gamma controller that maintains the original luminance and color coordinates for the area not overlapping the module, ensuring both areas meet target ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electronic module is disposed under the display panel to provide additional functions, then the functionality and versatility of the display apparatus are improved, but luminance difference and color coordinate difference are generated in the display area overlapping the electronic module
Solution Approach 1:
The patent applies local quality by implementing different gamma compensation strategies for different display areas. The first gamma controller specifically compensates for the first display area overlapping the electronic module, while the second gamma controller handles the second display area without the electronic module. This localized approach allows each region to be optimized independently, maintaining display uniformity despite the presence of the electronic module in one area.
2Device complexity
If a single gamma controller is used for the entire display panel, then the device complexity is reduced, but luminance and color coordinate consistency across different display areas deteriorates
Solution Approach 1:
The patent segments the gamma control function by dividing the display panel into two distinct display areas and implementing separate gamma controllers for each area. The first gamma controller is dedicated to compensating the first display area with the electronic module, while the second gamma controller handles the second display area. This segmentation allows independent optimization of gamma values for each region, ensuring luminance and color coordinate consistency across the entire display panel despite structural differences.
3Adaptability or versatility
If the display panel structure is modified to accommodate an electronic module, then additional functionality is achieved, but the luminance and color coordinates in the overlapping area deviate from target ranges
Solution Approach 1:
The patent implements preliminary action by pre-calculating and applying gamma compensation values before displaying images. The first gamma controller stores multiple sets of gamma compensation values corresponding to different grayscale values and applies the appropriate compensation in advance. This preliminary compensation ensures that luminance and color coordinates in the first display area overlapping the electronic module are adjusted to meet target ranges before the actual display occurs, maintaining display quality despite the structural modification.
Data Source
AI summary
A display apparatus includes a display panel, a first coordinate calculator, a second coordinate calculator and a gamma setter. The display panel includes a first display area and a second display area. The first coordinate calculator is configured to calculate color coordinates of first image data of the first display area. The second coordinate calculator is configured to calculate color coordinates of second image data of the second display area. The gamma setter is configured to adjust luminance of the first image data, the color coordinates of the first image data, luminance of the second image data and the color coordinates of the second image data.