Under-screen Camera Display with Surrounding LED Chips
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Solution Overview
Problem
Existing display devices with under-screen cameras compromise screen-to-body ratio and user experience due to the camera area being non-functional for image display.
Innovation Solution
A display device design featuring an optical film with a through hole for the camera, LED chips arranged around the camera lens, and a light blocking film to enable the camera area to function as both a display and lighting unit by controlling the LED chips' power state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an under-screen camera solution is adopted with a camera disposed in a camera area at the edge or corner of the screen, then the camera function is achieved, but the screen-to-body ratio is reduced and the camera area cannot display images
Solution Approach 1:
The camera area is designed to serve dual functions: as a camera opening when LED chips are turned off, and as a display area when LED chips are turned on. This multi-functionality resolves the contradiction by making the same physical space usable for both camera capture and image display, thereby increasing the effective screen-to-body ratio while maintaining camera functionality.
Solution Approach 2:
The patent introduces dynamic control of LED chips in the camera area to switch between two states: lighting mode (LEDs off) for camera capture and display mode (LEDs on) for image rendering. This dynamic state change allows the camera area to adapt its function based on operational needs, resolving the contradiction between camera function and display area utilization.
2Area of stationary object
If LED chips are added around the camera lens to enable display function in camera area, then the screen-to-body ratio is increased, but the device structure becomes more complex
Solution Approach 1:
The patent merges the camera opening structure with the display structure by integrating LED chips directly into the camera area. Instead of adding a separate display module, the existing camera area structure is enhanced with LED chips that can be dynamically controlled, thereby increasing screen-to-body ratio without proportionally increasing structural complexity.
Solution Approach 2:
The camera area is designed as a universal structure that can function as both a camera opening and a display area. The LED chips are integrated into this existing structure, allowing it to serve dual purposes. This approach avoids adding completely separate structural systems, thus managing complexity while achieving full-screen utilization.
3Area of stationary object
If the camera area is made transparent to allow light passage for display, then the display quality is improved, but the camera lighting function is compromised
Solution Approach 1:
The patent employs dynamic control of LED chips to switch between lighting mode (LEDs off, allowing light passage for camera) and display mode (LEDs on, providing illumination for display). This dynamic state change resolves the contradiction by ensuring that the camera area is either transparent for lighting or opaque for display, never both simultaneously.
Solution Approach 2:
The system alternates between periodic states: when camera capture is needed, LED chips are turned off to allow light passage; when display is needed, LED chips are turned on to provide illumination. This periodic switching between states resolves the contradiction between transparency for display and light blocking for camera lighting.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Increases the screen-to-body ratio by allowing the camera area to display images when LED chips are powered on and function as a lighting device when powered off, enhancing user experience with a full-screen effect.
Implementation Method 1
a plurality of LED chips evenly arranged around the camera lens, wherein the LED chips are disposed in the through hole and between the camera and the transparent area
Implementation Method 2
a light blocking film disposed on an inner sidewall of the through hole
Data Source
AI summary
The present invention discloses a display device including an optical film including a through hole; a display panel disposed on a surface of one side of the optical film, wherein the display panel includes a transparent area corresponding to the through hole; a camera including a camera lens, wherein the camera is inserted into the through hole and faces the transparent area; and a plurality of LED chips evenly arranged around the camera lens, wherein the LED chips are disposed in the through hole and between the camera and the transparent area.