Under-display Camera Structure for Full-Screen Displays
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Solution Overview
Problem
Current display devices face challenges in implementing full-screen designs due to the space occupied by camera modules or sensors, which restrict screen size and require design compromises like notches or punch holes, limiting the visual characteristics and performance of these devices.
Innovation Solution
A display device structure that includes a substrate with optical and normal areas, featuring light emitting diodes, an encapsulation layer, a touch sensing layer, a passivation layer, and an organic layer, where the camera module or sensor is positioned to improve transmittance and luminosity in the optical area, reducing the need for notches and enhancing the display's performance and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a camera module or sensor is disposed on the front surface of the display device, then the camera or sensor can capture images, but the screen size is restricted and full-screen display cannot be implemented
Solution Approach 1:
The camera module is repositioned from the front surface (2D plane) to the rear surface of the display device, utilizing the third dimension (depth/thickness) to resolve the space conflict. This allows the camera to be disposed in the display area without reducing the screen size, enabling full-screen display while maintaining camera functionality.
2Adaptability or versatility
If a notch or punch hole is employed to reduce space occupied by camera module, then the screen design flexibility is improved, but the visual characteristics and transmittance are degraded
Solution Approach 1:
By moving the camera module to the rear surface, the invention eliminates the need for notches or punch holes on the front surface. This maintains the full-screen display integrity and ensures high transmittance and luminosity in the display area, while still providing design flexibility through alternative camera placement configurations.
3Area of stationary object
If the camera module is disposed in the display area, then full-screen display can be achieved, but the transmittance and luminosity in the camera area are reduced
Solution Approach 1:
The invention applies different structural characteristics to different areas of the display device. The rear surface includes a light receiving area with specific structural features (such as light guide structures or optical lenses) that optimize light transmission to the camera, while the front display area maintains high transmittance for full-screen display. This local optimization resolves the conflict between full-screen coverage and luminosity.
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
This solution allows for improved transmittance in areas with camera modules or sensors, reducing the size of the transmissive area, increasing the lifespan of the display device, and enabling full-screen designs without the need for notches, thus enhancing visual characteristics and performance.
Implementation Method 1
a plurality of light emitting diodes disposed on the substrate in the display area
Implementation Method 2
An electroluminescent display device which is represented by an organic light emitting display device is a self-emitting display device
Data Source
AI summary
A display device and a method for manufacturing the same are disclosed. The display device includes a substrate which includes a display area including an optical area and a normal area and a non-display area. The display device further includes a plurality of light emitting diodes disposed on the substrate in the display area. The display device further includes an encapsulation layer disposed to cover the plurality of light emitting diodes. The display device further includes a touch sensing layer which is disposed on the encapsulation layer and includes a touch line. The display device further includes a passivation layer disposed to cover the touch line. The display device further includes an organic layer which is disposed to cover the touch sensing layer and the passivation layer and is in contact with the encapsulation layer.