Stretchable Display Bridges for Under-Screen Camera Light Transmittance
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Solution Overview
Problem
Existing display technologies with cameras integrated under the screen face challenges in achieving high-definition image/video capture due to the need to sacrifice pixel density for improved light transmittance, resulting in suboptimal performance for both full-screen display and high-resolution imaging.
Innovation Solution
A display panel design featuring a stretchable display area with island-shaped structures and bridges, where the first stretchable display area has a greater stretchability than the second, allowing for adjustable pixel density and light transmittance to accommodate both high-definition shooting and high-resolution display by controlling the stretchable degree through a stretch controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased to achieve high-definition image capture, then light transmittance decreases, but light transmittance is needed for high-definition shooting
Solution Approach 1:
The display area is designed with stretchable characteristics, allowing it to dynamically change its physical state. When stretched, the pixel density decreases and light transmittance increases, enabling high-definition camera capture. When relaxed, the pixel density increases for high-resolution display, resolving the contradiction between these two opposing requirements
Solution Approach 2:
The patent changes the physical parameter of the display area by introducing stretchability. This allows the pixel density and light transmittance parameters to be adjusted dynamically based on operational mode (display vs. camera capture), rather than being fixed at conflicting values
2Illumination intensity
If the display area is made fully stretchable to improve light transmittance, then pixel density decreases, but high pixel density is needed for high-resolution display
Solution Approach 1:
The display panel is divided into different regions with different stretchable degrees. The first display area corresponding to the camera has greater stretchability for improved light transmittance, while the second display area maintains higher pixel density for display quality, allowing each region to optimize for its specific function
Solution Approach 2:
The display area is segmented into multiple regions with different stretchable characteristics. This segmentation allows the camera region to be optimized for light transmission while the display region maintains high pixel density, resolving the contradiction between these two opposing requirements
3Ease of manufacture
If uniform stretchable degree is applied across the entire display area, then manufacturing is simplified, but stretch damage increases and stability decreases
Solution Approach 1:
Different regions of the display area are assigned different stretchable degrees based on their functional requirements. The camera region has higher stretchability while the display region has lower stretchability, which distributes mechanical stress more evenly and reduces the risk of stretch damage while maintaining manufacturing feasibility
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a stretchable display area; and the stretchable display area includes a plurality of island-shaped structures and a plurality of stretchable bridges. A stretchable bridge of the plurality of stretchable bridges is configured to connect adjacent island-shaped structures of the plurality of island-shaped structures; at least one pixel is disposed on an island-shaped structure of the plurality of island-shaped structures; the stretchable display area includes a first stretchable display area and a second stretchable display area adjacent to the first stretchable display area; the first stretchable display area is disposed corresponding to an under-screen camera; and a stretchable degree of the first stretchable display area is greater than a stretchable degree of the second stretchable display area.