Transparent Region Display Substrate for Camera Integration
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Solution Overview
Problem
In display devices with integrated imaging elements, the installation of cameras within the display screen poses challenges for full-screen and narrow frame designs, as display elements in the camera region affect light transmittance, leading to non-uniform imaging quality and display issues due to the arrangement of sub-pixels and signal lines.
Innovation Solution
A display substrate design featuring a transparent region without sub-pixels, surrounded by a peripheral region with voltage bus lines and signal lines that extend around the transparent area to minimize interference, ensuring uniform voltage distribution and signal connectivity while maintaining high light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-pixels and signal lines are arranged in the camera region, then display coverage is improved, but light transmittance deteriorates
Solution Approach 1:
The patent extracts the camera region from the display region by creating a transparent region where no sub-pixels or signal lines are arranged. This allows light to pass through freely for imaging functions while the surrounding display region maintains full sub-pixel coverage for display functions, thus resolving the contradiction between display coverage and light transmittance.
Solution Approach 2:
The patent applies different structural qualities to different regions: the camera region has a transparent structure optimized for light transmission, while the display region has a full sub-pixel structure optimized for display coverage. This local differentiation allows each region to perform its specific function optimally without compromising the other.
2Area of stationary object
If sub-pixels are arranged in the camera region, then display uniformity deteriorates, but display coverage is improved
Solution Approach 1:
The patent removes sub-pixels from the camera region to create a uniform transparent area, ensuring that the display region maintains consistent visual characteristics without the disruption of mixed transparent and opaque areas. This extraction preserves display uniformity while the surrounding region maintains full coverage.
3Device complexity
If signal lines extend through the transparent region, then wiring complexity is reduced, but light transmittance deteriorates
Solution Approach 1:
The patent segments the signal line path into two parts: signal line portions in the display region that connect to sub-pixels, and bent portions in the peripheral region that extend around the transparent region. This segmentation allows the signal lines to reach the necessary components without passing through the transparent region, thus maintaining light transmittance while managing wiring through spatial separation.
Solution Approach 2:
The patent uses the peripheral region as an alternative pathway dimension for signal lines. Instead of extending signal lines directly through the transparent region in a straight line, the lines are routed through the peripheral region, utilizing the available space in another dimensional path around the transparent area.
4Reliability
If voltage bus lines are arranged in the display region, then voltage distribution is improved, but display uniformity deteriorates
Solution Approach 1:
The patent relocates the voltage bus lines from the display region to the peripheral region, using the peripheral area as an alternative spatial dimension for voltage distribution. The bent portions of signal lines in the peripheral region connect to sub-pixels, allowing voltage bus lines to maintain proper voltage distribution without disrupting the visual uniformity of the display region.
Data Source
AI summary
A display substrate and a display substrate are provided. The display substrate includes a voltage bus line in the peripheral region, the voltage bus line at least partially surrounds the transparent region, and is configured to be connected with sub-pixels in a plurality of first pixel rows to provide a first voltage; the display substrate further includes a plurality of first signal lines extended along the first direction, and each first signal line includes a first signal line portion in the display region and a second signal line portion, which is electrically connected with the first signal line portion, in the peripheral region, and the second signal line portion includes a bent portion extended along the transparent region, bent portions of second signal line portions of the plurality of first signal lines are all located at a side of the voltage bus line close to the transparent region.