Rear Camera Behind Display Screen Multiplex Sub-Pixels
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Solution Overview
Problem
Conventional electronic devices with camera and earphone holes in the display screen area result in a smaller display area, limiting the screen ratio.
Innovation Solution
An electronic device design where a camera is positioned behind the display screen, corresponding to multiplex sub-pixels, and a control unit using thin-film transistors manages the driving signal to these sub-pixels based on picture-taking instructions, allowing the display area to be enlarged by reducing the non-display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If camera and earphone holes are disposed on the display screen area, then camera and earphone functions are achieved, but the display area is reduced
Solution Approach 1:
The camera is moved from the front display area to the rear side of the display screen, changing its spatial dimension. This allows the camera to correspond to multiplex sub-pixels on the back of the display, eliminating the need for front camera holes while maintaining camera functionality. The earphone is similarly repositioned to the side wall, removing it from the display area.
Solution Approach 2:
The multiplex sub-pixels serve dual functions: they act as display pixels during normal operation and as optical pathways for the rear-mounted camera during picture-taking mode. The control unit enables these sub-pixels to switch between receiving driving signals for display and blocking light for camera operation, achieving multi-functionality within the same structural area.
2Area of stationary object
If camera is positioned behind the display screen corresponding to multiplex sub-pixels, then display area is enlarged, but control complexity increases
Solution Approach 1:
The control unit integrates multiple control functions into a single component. It manages the switching between display and camera modes by controlling the multiplex sub-pixels, coordinates with the gate driving chip to disable driving signals to relevant rows during picture-taking, and synchronizes the camera shutter timing. This consolidation reduces overall system complexity despite the multifunctional requirements.
Data Source
AI summary
An electronic device is provided. The electronic device includes a display screen including a multiplex pixel array having multiplex sub-pixels, wherein a driving signal is inputted to the display screen; and a camera disposed behind the display screen and corresponding to positions of the multiplex sub-pixels. The display screen further includes a control unit configured to control the multiplex sub-pixels not to receive the driving signal when receiving an instruction for taking pictures.