Display Panel Signal Line Resistivity Optimization for Under-Screen Camera
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In display devices with under-screen camera structures, there is a challenge in balancing display performance and light transmission performance, as existing solutions often compromise on either display quality or light transmittance due to the arrangement and resistivity of signal lines.
Innovation Solution
The proposed solution involves a display panel with distinct areas for display and light transmission, where the resistivity of signal lines in the first display area is optimized for high display performance and in the second display area for maximum light transmittance, with specific resistivity values and layer configurations to minimize signal line density and ensure insulation, thereby enhancing both display and light transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal lines are arranged in the display area to provide signals to pixel circuits, then display performance can be maintained, but light transmission performance deteriorates due to increased signal line density and reduced transmittance
Solution Approach 1:
The display area is divided into a first display area and a second display area. The first display area contains pixel circuits with complete signal lines for high display performance, while the second display area contains pixel circuits with reduced signal lines for maximum light transmission. This segmentation allows different regions to serve different functions, resolving the contradiction between display performance and light transmission performance.
Solution Approach 2:
Different signal line configurations are applied to different regions of the display area. The first display area uses a complete signal line arrangement optimized for display quality, while the second display area uses a simplified signal line arrangement optimized for light transmission. This local differentiation allows each region to have the quality characteristics needed for its specific function.
2Illumination intensity
If signal lines are made thinner to increase light transmission, then light transmission performance improves, but display performance deteriorates due to increased resistivity and potential signal loss
Solution Approach 1:
The display area is segmented into regions with different signal line specifications. In the first display area, signal lines have sufficient width and low resistivity to ensure high display performance. In the second display area, signal lines are optimized for light transmission with reduced width and higher resistivity is acceptable due to the reduced functional requirements in this region.
Solution Approach 2:
Signal lines in different regions have different quality characteristics. The first display area uses signal lines with higher quality (lower resistivity, adequate width) for critical display functions, while the second display area uses signal lines with lower quality (higher resistivity, thinner width) that are sufficient for basic functionality but optimize light transmission.
3Reliability
If signal lines are made thicker to reduce resistivity and improve display performance, then display performance improves, but light transmission performance deteriorates due to increased signal line density
Solution Approach 1:
The display area is divided into a first display area where thick signal lines are used to ensure high display performance, and a second display area where thin signal lines are used to maximize light transmission. This spatial segmentation allows both contradictory requirements to be satisfied in different regions of the same display device.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a first display area and a second display area; and the second display area includes a transmission area. The sum of the resistivities of a first reset signal line, a first initialization signal line and a first bias adjustment signal line located in the first display area may not be greater than the sum of the resistivities of the second reset signal line, the second initialization signal line and the second bias adjustment signal line located in the second display area such that at least one of the first reset signal line, the first initialization signal line and the first these signal lines with relatively high resistivity requirements is disposed arranged on the film layer with a low signal lines resistivity of the signal line.