Liquid Crystal Display Panel with Switchable Light-Transmitting Subregions
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Solution Overview
Problem
Display panels with openings for components like cameras cannot simultaneously perform display and light transmission functions, limiting their screen-to-body ratio and achieving a true full-screen display.
Innovation Solution
A display panel design featuring a first display region surrounding a second display region with subregions that include both display and light-transmitting portions, utilizing a liquid crystal layer, transparent electrodes, and a color filter layer to control the light-transmitting state, allowing for independent control of light transmission and display functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an opening region is provided on the screen for camera components, then light transmission function is achieved, but display function is lost in that region
Solution Approach 1:
The patent applies dynamics by making the state of the liquid crystal layer switchable between transparent and opaque. The light-transmitting portion can dynamically change its optical properties based on voltage control, allowing it to alternate between transmitting light (for camera function) and blocking light (for display function), thus resolving the contradiction between light transmission and display area.
Solution Approach 2:
The patent changes the optical parameter (transparency) of the light-transmitting portion by controlling the liquid crystal layer's state through voltage application. By adjusting the transparency parameter from opaque to transparent, the same region can serve different functions, thereby increasing the effective display area while maintaining light transmission capability when needed.
2Area of stationary object
If the entire screen is used for display, then display region is maximized, but light transmission function for camera is lost
Solution Approach 1:
The light-transmitting portion acts as a dynamic element that can switch between transparent and opaque states. When camera function is needed, it becomes transparent to allow light transmission; when display function is needed, it becomes opaque to maintain display quality, thus enabling the screen to be fully utilized for display while preserving camera functionality.
Solution Approach 2:
The light-transmitting portion serves multiple functions: it acts as a camera aperture when transparent and as a display region when opaque. This multi-functionality allows the same physical region to fulfill different roles based on operational requirements, maximizing both display area and light transmission capability.
3Illumination intensity
If transparent electrodes and liquid crystal layer are used to enable light transmission, then light-transmitting function is achieved, but device complexity increases
Solution Approach 1:
The liquid crystal layer and transparent electrodes serve dual purposes: they enable the light-transmitting portion to switch between transparent and opaque states for camera functionality, and simultaneously allows this region to function as a display region when opaque. This multi-functionality justifies the added structural complexity by eliminating the need for separate opening regions.
Solution Approach 2:
The patent merges the camera aperture function and display function into a single integrated region. By combining the liquid crystal layer control mechanism with the display structure, the opening region and display region are unified, reducing the need for separate structural elements and optimizing the overall device design.
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 enhances the screen-to-body ratio by enabling the second display region to perform both display and light transmission functions simultaneously, achieving a true full-screen display effect.
Implementation Method 1
a transparent electrode group electrically connected to the switch control unit and corresponding to the display portion and the light-transmitting portion, wherein the transparent electrode group is configured to control a deflection direction of liquid crystal molecules in the liquid crystal layer
Implementation Method 2
the transparent electrode group is configured to control a deflection direction of liquid crystal molecules in the liquid crystal layer, which puts the light-transmitting portion in a light-transmitting state or an opaque state
Data Source
AI summary
The present invention discloses a display panel and an electronic terminal. The display panel includes a first display region and a second display region. The second display region includes a plurality of display subregions. Each of the plurality of display subregions includes a display portion and a light-transmitting portion. Each of the plurality of display subregions includes a switch control unit, a liquid crystal layer, a transparent electrode group, and a color filter layer. The liquid crystal layer is disposed in the display portion and the light-transmitting portion. The transparent electrode group is configured to control a deflection direction of liquid crystal molecules in the liquid crystal layer, which puts the light-transmitting portion in a light-transmitting state or an opaque state.