Display Driver Gamma Control for Unequal Pixel Density Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
When a camera or sensor is disposed in the lower portion of a display, signal loss occurs, leading to resolution issues due to differing pixel arrangement densities, causing visual differences in image display.
Innovation Solution
An electronic device with a display panel featuring different pixel densities in distinct areas employs a display driver IC with a gamma generator and an extra gamma generator to supply adjusted gamma signals, ensuring consistent luminance and color across these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a camera or sensor is disposed in the lower portion of the display, then the display area can be enlarged, but signal loss occurs leading to resolution issues
Solution Approach 1:
The display panel is divided into a first display area with first subpixels and a second display area with second subpixels. The display driver IC separately controls these two areas using different gamma signals, allowing the lower portion (second display area) to be compensated for signal loss while maintaining the overall display area enlargement.
Solution Approach 2:
Different gamma signals are applied to different display areas based on their specific characteristics. The second display area in the lower portion receives a gamma signal with higher luminance value to compensate for signal loss, while the first display area receives a standard gamma signal, achieving localized quality adjustment.
2Measurement precision
If pixel arrangement density is made different in the area where the camera is disposed compared to another area, then resolution issues are addressed, but visual differences occur when displaying the same image
Solution Approach 1:
The patent applies different gamma signals to different display areas to compensate for the visual differences caused by varying pixel densities. The second display area with lower pixel density receives a gamma signal adjusted for higher luminance, while the first display area with higher pixel density receives a standard gamma signal, ensuring visual consistency across the entire display.
Solution Approach 2:
The gamma signal parameters are changed based on the display area. By adjusting the luminance value parameter of the gamma signal supplied to the second display area, the patent compensates for the visual differences caused by different pixel arrangement densities, maintaining image consistency across areas with different resolutions.
Data Source
AI summary
An operation method and an electronic device supporting the same are provided. The operation method includes receiving, by a display driver integrated circuit (IC), display data from a processor and supplying, by the display driver IC, a second gamma signal set to display a luminance of a second magnitude greater than a first magnitude to a second display area having a second pixel arrangement density lower than a first pixel arrangement density, while supplying a first gamma signal set to display a luminance of the first magnitude to a first display area disposed at the first pixel arrangement density in a display panel.