Display Panel Under-Screen Photosensitive Integration
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Solution Overview
Problem
Electronic devices struggle to achieve a full-screen display due to the need for notches or holes to accommodate photosensitive components like cameras, which limits the screen-to-body ratio and prevents image display in areas where these components are integrated.
Innovation Solution
A display panel with a first light-transmitting display area and a second display area, where the light transmittance of the first area is greater than the second, allowing photosensitive components to be integrated behind the first area while maintaining image display, and incorporating pixel driving circuits in the second area to enhance light transmittance and display consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a notch or hole is formed in the display screen to accommodate photosensitive components, then the photosensitive components can be integrated, but the screen-to-body ratio is limited and full-screen display cannot be achieved
Solution Approach 1:
The patent moves the pixel driving circuits from the display surface (2D plane) to the backplane (another dimension), allowing the entire display surface to be used for image display. This spatial reconfiguration enables full-screen display while maintaining component integration capability.
Solution Approach 2:
The patent creates virtual pixel driving circuits on the backplane that replicate the functionality of traditional front-plane driving circuits. These virtual circuits control sub-pixels through extended signal lines, achieving the same driving function without occupying display area.
2Illumination intensity
If pixel driving circuits are placed in the first display area to drive first sub-pixels, then the light transmittance is reduced, but the display consistency is improved
Solution Approach 1:
The patent relocates pixel driving circuits to the backplane (another dimension), allowing light to pass through the display surface without being blocked by driving circuits. This maintains high light transmittance while display consistency is ensured through virtual circuit design and extended signal lines.
Solution Approach 2:
The patent introduces extended signal lines as intermediaries that connect the virtual pixel driving circuits on the backplane to the sub-pixels on the display surface. These extended lines ensure proper signal transmission while maintaining the spatial separation needed for high light transmittance.
3Illumination intensity
If the light transmittance of the first display area is increased for under-screen integration, then photosensitive components can be integrated, but the display area structure becomes more complex
Solution Approach 1:
The patent segments the display into a first display area with high light transmittance for under-screen integration and a second display area with standard structure. This segmentation allows optimized light transmission where needed while maintaining structural simplicity in other areas.
Solution Approach 2:
The patent uses virtual pixel driving circuits that copy the functionality of traditional driving circuits but are implemented on the backplane. This copying approach simplifies the overall structure by eliminating the need for complex front-plane circuit integration while maintaining driving capability.
Data Source
AI summary
A display panel and a display apparatus. The display panel includes: sub-pixels including first sub-pixels located in the first display area and second sub-pixels located in the second display area; and pixel driving circuits located in the second display area and including first driving units and second driving units. Each of the first driving units includes one or more first pixel driving circuits for driving the first sub-pixels and N second pixel driving circuits for driving the second sub-pixels, each of the second driving units includes one or more virtual areas and N second pixel driving circuits for driving the second sub-pixels, and an arrangement of the N second pixel driving circuits in the first driving unit is the same as an arrangement of the N second pixel driving circuits in the second driving unit.