Transparent Display Panel for Camera Light Channel
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Solution Overview
Problem
Current display technologies for mobile devices cannot achieve a screen-to-body ratio of 100% due to the presence of functional components like cameras, which compromises the full-screen design and user experience.
Innovation Solution
A display panel combining OLED and LCD technologies, with a transparent display area for the camera and an opaque area for image display, using a liquid crystal layer with scattering liquid crystals and driving layers to provide a light channel for the camera and maintain image display, enhancing the screen-to-body ratio and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is placed on the front of the display device to provide basic functions, then the functional requirements are met, but the screen-to-body ratio cannot reach 100% and the appearance is compromised
Solution Approach 1:
The camera is nested within the display panel structure, specifically positioned behind the transparent display area. The camera module is integrated into the layer structure between the first substrate and the luminous layer, allowing the camera to be housed within the display thickness rather than protruding from the front surface. This nesting approach enables full functional integration while maintaining a 100% screen-to-body ratio appearance.
Solution Approach 2:
A transparent display area acts as an intermediary between the camera and the external environment. This transparent region allows light to pass through to the camera while maintaining the visual continuity of the display. The transparent display area mediates between the need for camera access and the desire for an uninterrupted full-screen appearance, enabling both functions to coexist without compromise.
2Area of stationary object
If a lifting camera structure is used to place the camera, then the full-screen display is achieved, but the device becomes non-waterproof, has low lifespan, and poor quality user experience
Solution Approach 1:
The camera is permanently nested within the sealed display panel structure rather than being mechanically movable. The camera module is integrated into the layer structure and sealed between substrates, eliminating the need for lifting mechanisms. This fixed nesting approach provides robust waterproofing and structural integrity while maintaining the full-screen appearance.
Solution Approach 2:
The mechanical lifting camera system is replaced with a fixed nested camera structure. Instead of using mechanical components to move the camera for full-screen effect, the invention uses optical transparency and fixed positioning to achieve the same visual result. This substitution eliminates mechanical failure points and improves reliability while maintaining the full-screen display quality.
3Adaptability or versatility
If a notch or water drop screen is used to accommodate functional components, then the basic functions are maintained, but the overall attractive appearance and true full-screen effect are compromised
Solution Approach 1:
The display panel has different local properties: most of the display area is opaque for normal viewing, while a specific local region is transparent to allow camera access. This local quality differentiation enables the camera to be positioned in the transparent area without affecting the appearance of the surrounding opaque display areas, achieving true full-screen effect while accommodating functional components.
Solution Approach 2:
The display area changes its optical property from opaque to transparent in the region where the camera is located. This optical state change allows the camera to be hidden within the display structure while maintaining the visual continuity of the screen. The transparent region effectively disappears visually, creating the illusion of a true full-screen display without notches or water drop cutouts.
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 a real full-screen display with a 100% screen-to-body ratio, improving the device's appearance and user experience by minimizing the camera's impact on the display and providing a light channel for the camera when needed.
Implementation Method 1
the liquid crystal layer is filled with scattering liquid crystal
Implementation Method 2
a plurality of organic electroluminescent devices are arranged on the luminous layer
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a display area including a transparent display area and an opaque display area surrounding the transparent display area. The display panel further includes a first substrate layer, a luminous layer, a liquid crystal layer, a first driving layer, and a second driving layer. The display panel is divided into the transparent display area and the opaque display area by combining an organic light-emitting diode technology and a liquid crystal display technology, such that the transparent display area can provide a light channel for a camera and can also display an image, thereby improving a screen-to-body ratio and realizing a real full-screen display.