Dual-Region Display Substrate for Hole-Free Camera Integration
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Solution Overview
Problem
Existing display technologies that incorporate a camera by digging a hole in the display region limit the screen-to-body ratio improvement, as they necessitate non-display areas, preventing further enhancement.
Innovation Solution
A display substrate design with distinct first and second display regions, utilizing separate pixel circuits and light emitting elements driven by different data signals, allowing for a full-screen display without physical holes, achieved by arranging pixel circuits and light emitting elements in overlapping projections and utilizing time-sharing data signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is installed by digging a hole in the display region, then the camera can be integrated into the display apparatus, but the screen-to-body ratio cannot be further improved due to the presence of non-display areas
Solution Approach 1:
The display region is divided into a first display region for camera placement and a second display region for normal display functions. This segmentation allows the camera to be integrated into the display apparatus while maintaining full-screen display capability, as each region can be independently configured and controlled.
Solution Approach 2:
The patent transitions from a single-plane display structure to a multi-layered structure where pixel circuits are positioned on different layers. Specifically, pixel circuits for the first display region are placed on a lower layer while the camera is positioned on an upper layer, allowing both functions to coexist without physical holes in the display surface.
2Illumination intensity
If pixel circuits are positioned below the display region, then light transmittance is improved, but the area for camera integration is reduced
Solution Approach 1:
The display region is segmented into a first display region where pixel circuits are positioned below to enhance light transmittance, and a second display region for normal display functions. This allows the camera to be integrated into the first display region while maintaining optimal light transmittance characteristics.
Solution Approach 2:
The patent employs a multi-layered structure where pixel circuits are positioned on a lower layer and the camera on an upper layer within the first display region. This vertical arrangement allows both light transmittance optimization and camera integration to coexist without compromising either function.
3Adaptability or versatility
If the display region is divided into multiple regions with different pixel circuit arrangements, then camera integration is enabled, but the device complexity increases
Solution Approach 1:
The display region is divided into a first display region for camera integration and a second display region for normal display functions. This segmentation enables camera integration while managing complexity through clear functional separation and independent control of each region.
Solution Approach 2:
The patent implements a multi-functional pixel circuit design where pixel circuits can serve different purposes depending on the region. The same basic pixel circuit structure can be configured for either camera integration or normal display functions, reducing overall system complexity through component universality.
Data Source
AI summary
Disclosed is a display substrate, comprising: a base substrate having a first display region and a second display region, a plurality of first light-emitting elements, a plurality of second light-emitting elements, a plurality of first pixel circuits and a plurality of second pixel circuits. The plurality of first light-emitting elements are located in the first display region, and the plurality of first pixel circuits, the plurality of second pixel circuits and the plurality of second light-emitting elements are located in the second display region. At least one first pixel circuit is configured to use a first data signal to drive at least one electrically connected first light-emitting element to emit light, and at least one second pixel circuit is configured to use a second data signal to drive at least one electrically connected second light-emitting element to emit light. The first data signal is different from the second data signal.