Display Substrate With Segmented Light Transmittance
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Solution Overview
Problem
Conventional electronic devices with notched displays for camera and sensor components are not truly full-screen, as the notched area obstructs picture display and the complex driving circuits increase the frame area, reducing the effective display area and user experience.
Innovation Solution
A display substrate with a first display area of higher light transmittance for accommodating photosensitive devices and a second area with pixel circuits and EM signal control circuits in the frame area, allowing for a reduced frame size and increased display area, enabling full-screen functionality while maintaining normal sensor operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a notched area is created to accommodate camera and sensor components, then photosensitive devices can be integrated, but the display area is reduced and pictures cannot be displayed in the notched area
Solution Approach 1:
The display area is segmented into a first display area with higher light transmittance for photosensitive devices and a second display area for normal display, allowing both functions to coexist without mutual interference
Solution Approach 2:
Different regions of the display are assigned different light transmittance characteristics - the first display area has higher light transmittance to accommodate photosensitive devices while the second display area maintains normal display quality
2Device complexity
If driving circuits are placed in the frame area, then circuit functionality is provided, but the frame area increases reducing the effective display area
Solution Approach 1:
The pixel circuits are moved from the traditional frame area to the display area itself, utilizing the display area dimensionally to accommodate circuits that were previously confined to the frame, thereby reducing frame width and increasing effective display area
3Area of stationary object
If the frame area is reduced to increase display area, then full-screen display is achieved, but circuit arrangement becomes more difficult
Solution Approach 1:
Circuits are relocated from the frame area to the display area, utilizing the display region to house pixel circuits and other components, thereby maintaining full-screen display while providing adequate space for circuit arrangement
Solution Approach 2:
The frame area and display area are merged in functionality, as the display area now serves both as the visual output region and as the housing for pixel circuits and other components, eliminating the need for a separate frame area
Data Source
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AI summary
The disclosure provides a display substrate, a display panel and a display device. The display substrate includes a display area and a frame area surrounding at least part of the display area. The display area includes a first display area and a second display area, and a light transmittance of the first display area is greater than a light transmittance of the second display area; the display area is provided with a plurality of pixel groups arranged along a first direction, and each of the pixel groups includes a first sub-pixel group and a second sub-pixel group, or includes only the second sub-pixel group; the first sub-pixel group includes at least one first sub-pixel, and the second sub-pixel group includes at least one second sub-pixel; when multiple sub-pixels are provided in a same pixel group, the multiple sub-pixels are arranged at intervals along a second direction; the display area is provided with pixel circuits for driving the sub-pixels; and the frame area is provided with an EM signal control circuit having more than two output terminals, and each output terminal of the EM signal control circuit is electrically connected to the pixel circuits of at least part of the sub-pixels in one pixel group.