Color Changing Layer for Full-Screen Display Sensing
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Solution Overview
Problem
Current full-screen display devices cannot achieve a true full-screen design due to the presence of cameras, which require through holes or blind holes at the bottom of the screen, resulting in regions of the display panel being unable to display images.
Innovation Solution
A display panel design that includes a panel body with a first display region and a second display region, a backlight module, and a light sensor, where the color changing layer can switch between transparent and color states to allow incident light to pass through for sensing or provide backlight for display, enabling both display and sensing functions in the first display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If through holes or blind holes are added to the display panel to place cameras, then the sensing function is improved, but the display area is reduced
Solution Approach 1:
The patent merges the display function and sensing function into the same physical region (first display region). The color changing layer and light sensor are integrated in the same area, allowing the region to switch between displaying images and sensing light, thereby eliminating the need for separate hole regions and achieving full-screen display while maintaining sensing capability.
Solution Approach 2:
The patent introduces dynamic switching capability through the color changing layer that can transition between transparent state and color state. When transparent, the region allows light transmission for sensing; when in color state, it provides backlight for display. This dynamic state change enables the same region to serve dual purposes at different times.
2Illumination intensity
If the color changing layer is in the color state to provide backlight, then the display function is improved, but the sensing function is lost
Solution Approach 1:
The system operates in periodic cycles, switching between display mode (color state with backlight) and sensing mode (transparent state with light detection). The control module periodically changes the state of the color changing layer and light sources based on operational requirements, enabling the region to alternate between providing illumination and receiving light signals.
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 design allows for a full-screen display by enabling the first display region to perform both display and sensing functions, eliminating the need for physical holes and enhancing the visual experience by maintaining image display across the entire screen.
Implementation Method 1
The color changing layer includes a transparent state and a color state. Incident light passes through the color changing layer and is received by the light sensor when the color changing layer is in the transparent state. Light from the first light sources passes through the color changing layer when the color changing layer is in the color state.
Data Source
AI summary
The present application provides a display panel and an electronic device. The display panel includes a panel body, a backlight module, and a light sensor. The panel body includes a color changing layer including a transparent state and a color state. The backlight module includes first backlight sources. Incident light passes through the panel body and is received by the light sensor when the color changing layer is in the transparent state, so as to realize a sensing function. The color state of the color changing layer cooperates with the first light sources to enable the display panel to realize a display function, which is beneficial to realize a full-screen display design of the display panel.