Display Panel Sub-Pixel Density Segmentation for Sensor Region Brightness
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Solution Overview
Problem
Display panels with integrated sensor modules suffer from inconsistent brightness and display quality due to differences in light emitting element density between sensor and normal display regions, leading to noticeable boundaries and poor overall display effects.
Innovation Solution
A method for driving a display panel that divides a picture into multiple partition pictures and displays them in regions with varying sub-pixel densities and luminances, using a transition region to smooth the luminance and graininess transition between sensor and normal display regions, thereby reducing the visibility of boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If light emitting elements are disposed in the sensor module region to meet high screen ratio, then the screen ratio is improved, but the brightness consistency between sensor region and normal display region deteriorates
Solution Approach 1:
The display panel is divided into three distinct display regions (first, second, and third display regions) with different sub-pixel densities. The first display region has higher sub-pixel density for normal display, the second display region has intermediate density as a transition zone, and the third display region has lower density for sensor integration. This segmentation allows the screen ratio to be increased while maintaining brightness consistency through gradual transition.
Solution Approach 2:
Different regions of the display panel are assigned different local qualities in terms of sub-pixel density and luminance characteristics. The first display region uses high sub-pixel density for optimal display quality, the third display region uses low sub-pixel density to accommodate sensor modules, and the second display region uses intermediate density to provide a smooth transition. This local differentiation resolves the contradiction between screen ratio and brightness consistency.
2Area of stationary object
If sub-pixel density varies between display regions to accommodate sensor modules, then the overall display area is improved, but the display quality uniformity deteriorates
Solution Approach 1:
The display panel implements dynamic control of sub-pixels in the second display region, which serves as a transition zone. The sub-pixels in this region can dynamically adjust their luminance output to create a smooth gradient between the high-density first display region and the low-density third display region. This dynamic adjustment maintains display quality uniformity while accommodating the varied sub-pixel density requirements.
Solution Approach 2:
The second display region acts as an intermediary zone between the first display region (high sub-pixel density) and the third display region (low sub-pixel density). This intermediate region with moderate sub-pixel density provides a buffer that smooths the transition, preventing abrupt changes in display quality and maintaining overall uniformity across the display panel.
3Object-affected harmful factors
If a transition region is introduced to smooth luminance transition, then the boundary visibility is reduced, but the device complexity increases
Solution Approach 1:
The display panel is segmented into three functional regions with distinct sub-pixel density characteristics. The second display region specifically serves as a transition zone with intermediate sub-pixel density, creating a natural gradient that smooths luminance transitions and reduces boundary visibility between regions with different densities.
Solution Approach 2:
The invention changes the sub-pixel density parameter across different display regions to achieve smooth luminance transitions. The first display region has high sub-pixel density, the second display region has intermediate density, and the third display region has low density. This parameter variation creates a gradual luminance transition that reduces boundary visibility while maintaining a relatively simple structural organization.
Data Source
AI summary
Provided are a method for driving a display panel, a display driving device and an electronic device. The method includes: acquiring any one frame of the picture to de displayed; dividing the any one frame of the picture to be displayed into a first partition picture, a second partition picture and a third partition picture; displaying the first partition picture in the first display region, displaying the second partition picture in the second display region, and displaying the third partition picture in the third display region; where in a same frame of picture to be displayed, a density A1 of sub-pixels for displaying the first partition picture, a density A2 of sub-pixels for displaying the second partition picture and a density A3 of sub-pixels for displaying the third partition picture satisfy that A1≤A2≤A3; and where sub-pixels in the second display region include first sub-pixels and second sub-pixels.