Display Power-Line Segmentation for Area-Specific Luminance Control
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Solution Overview
Problem
Existing display devices struggle to achieve uniform and efficient customization of luminance levels across different areas of the display screen, leading to suboptimal display quality and increased power consumption.
Innovation Solution
The display device is divided into multiple areas with separate power lines providing distinct voltage levels to each area, allowing for precise control of luminance levels, and is separated by a separator to isolate electrodes, enhancing display quality and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate power lines are used to provide different voltage levels to different areas of the display screen, then luminance level customization is improved, but device complexity increases
Solution Approach 1:
The display screen is divided into multiple areas (first area and second area) with separate power lines (first power line and second power line) providing different voltage levels to each area. This segmentation enables independent luminance control for each region, allowing the first area to display high luminance content while the second area displays low luminance content, thereby resolving the technical contradiction between luminance customization capability and device complexity.
Solution Approach 2:
Different voltage levels are applied to different areas of the display screen through separate power lines. The first area receives a first voltage level optimized for high luminance display, while the second area receives a second voltage level optimized for low luminance display. This local quality approach allows each region to operate at its optimal voltage level, achieving precise luminance customization without uniformly increasing device complexity across the entire display.
2Manufacturing precision
If separate power lines are used to provide different voltage levels to different areas, then display quality is improved, but manufacturing complexity increases
Solution Approach 1:
The display device is segmented into multiple areas with dedicated power lines for each area. The first power line is specifically designed to provide the first voltage level to the first area, while the second power line provides the second voltage level to the second area. This segmentation enables precise control of luminance levels in different regions, improving display quality while maintaining manufacturability through modular design approaches.
3Manufacturing precision
If a separator is used to divide the display area into multiple areas, then display quality is improved, but device complexity increases
Solution Approach 1:
A separator is introduced to physically divide the display area into distinct first and second areas. This separator ensures clear boundaries between regions that require different voltage levels, improving the precision of area separation and enabling accurate luminance control for each area while managing the additional structural complexity through functional integration.
Data Source
AI summary
A display device includes a base layer including a display area having a plurality of pixels and a non-display area, a first power line electrically connected to the plurality of pixels, and a second power line electrically connected to the plurality of pixels. The display area is divided into a plurality of areas including a first area and a second area. The second power line includes a second-first power line that applies a first voltage to first pixels disposed in the first area and a second-second power line that applies a second voltage to second pixels disposed in the second area. During a first period, the first voltage has a voltage level different from a voltage level of the second voltage, and during a second period that does not include the first period, the first voltage has a same voltage level as the second voltage.