LCD Colorless Region for Under-Display Camera
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Solution Overview
Problem
The challenge in achieving a full screen display on smartphones with a liquid crystal display (LCD) is that the camera and display functions cannot be realized simultaneously, as placing a camera beneath the LCD requires a hole that disrupts the display, and alternative solutions like pop-up structures come with costs and user experience sacrifices.
Innovation Solution
A liquid crystal display design featuring a backlight layer with a first light transmitting hole, a filter layer with a colorless region, and an image display element that projects light onto the colorless region, allowing for image acquisition through a lens positioned under the colorless region while maintaining a full screen display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is placed beneath the liquid crystal display, then image acquisition function is achieved, but the display is disrupted due to the required hole
Solution Approach 1:
The patent extracts the light transmission function from the traditional LCD structure by introducing a colorless region that allows light to pass through to the camera, separating the display function (colored regions) from the light transmission function (colorless region), thus enabling both display continuity and image acquisition
Solution Approach 2:
The patent adds a new dimension to the LCD structure by incorporating an image display element that projects light onto the colorless region, creating a multi-layered optical path that enables both display and camera functions without physical disruption
2Adaptability or versatility
If a hole is created in the liquid crystal display for the camera, then the camera lens can be positioned, but the full screen display effect is compromised
Solution Approach 1:
The patent applies local quality by creating a colorless region with specific optical properties (light transmission) in a localized area, while the surrounding regions maintain their display function with color filters, thus preserving the overall display area while enabling camera positioning
Solution Approach 2:
The colorless region acts as an intermediary that mediates between the display structure and the camera lens, allowing light to pass through to the camera while maintaining the visual continuity of the display screen
3Adaptability or versatility
If alternative solutions like pop-up structures are used, then camera function is achieved, but production costs and user experience are compromised
Solution Approach 1:
The patent merges the display structure with the camera function by integrating the camera lens positioning within the LCD structure itself, eliminating the need for separate pop-up mechanisms and reducing overall device complexity
Solution Approach 2:
The LCD structure is designed to serve multiple functions: displaying images in colored regions and transmitting light for camera operation in the colorless region, eliminating the need for separate structural solutions for each function
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 enables a true full screen display effect while allowing image acquisition, optimizing both display and camera functionality without compromising user experience or production processes.
Implementation Method 1
an image display element, disposed at the first light transmitting hole, wherein the image display element is configured to project light onto the liquid crystal display corresponding to the colorless region
Implementation Method 2
a liquid crystal layer in the liquid crystal display includes a light transmitting state caused by driving of the liquid crystal driving element
Implementation Method 3
a liquid crystal layer in the liquid crystal display includes a light transmitting state caused by driving of the liquid crystal driving element
Data Source
Figure 1~2
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Figure 5~7
AI summary
The present disclosure relates to a liquid crystal display, a display method and terminal, and belongs to the technical field of terminals. The liquid crystal display includes: a backlight layer (1), a filter layer (5) and an image display element (7). The backlight layer (1) has a first light transmitting hole (11). The filter layer (5) has a colorless region (52) corresponding to the first light transmitting hole (11). The image display element (7) is disposed at the first light transmitting hole (11), and light of the image display element (7) is projected on the liquid crystal display and corresponds to the colorless region (52). The liquid crystal display provided by the embodiment of the present disclosure can realize the full screen display effect, and image capturing functions of the lens suitable for the full screen display.