Display Screen Assembly with Rear Light Source for Distance Detection
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Solution Overview
Problem
The challenge is to minimize the non-display region of electronic devices to enhance the screen-to-body ratio, as current designs often occupy significant space with electronic elements, hindering full-screen utilization.
Innovation Solution
The solution involves a display screen assembly with a first light source and a receiving element, where the light source emits a detection signal that interacts with objects, allowing the receiving element to determine distance and perform functions like screen control without occupying the display region, thereby reducing the non-display area and increasing the screen-to-body ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic elements are placed in the non-display region, then device functionality is achieved, but the screen-to-body ratio is reduced
Solution Approach 1:
The light source is moved from the non-display region (2D plane) to the space behind the display screen (3D depth), utilizing the Z-dimension to resolve the spatial conflict between electronic elements and display area
Solution Approach 2:
The light source is nested within the display screen structure itself, positioned in the space between the front surface and the back surface of the display, allowing electronic elements to be contained within the display volume rather than occupying external space
2Adaptability or versatility
If the light source is placed in the display region, then distance detection function is achieved, but the display area is reduced
Solution Approach 1:
The light source is positioned in the depth dimension behind the display screen rather than in the horizontal plane of the display region, allowing distance detection functionality without compromising the visible display area
3Area of stationary object
If the non-display region is reduced, then screen-to-body ratio is increased, but space for electronic elements is reduced
Solution Approach 1:
Electronic elements are relocated from the lateral non-display region to the depth space behind the display screen, utilizing the Z-dimension to accommodate electronics while minimizing the horizontal non-display region
Solution Approach 2:
Electronic elements are nested within the display screen structure, utilizing the internal volume of the display assembly to house components that would otherwise occupy external non-display space
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 configuration effectively reduces the non-display region by allowing the light source to be placed outside the display area, enhancing the screen-to-body ratio and enabling features like distance detection, gesture recognition, and control operations without interfering with the display.
Implementation Method 1
a first light source (2), configured to emit a detection signal (a)
Implementation Method 2
a receiving element (3), configured to receive a target signal (b) formed by interaction between the detection signal (a) and the detection object (M)
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A display screen assembly, an electronic device, and a method for controlling the electronic device are provided. The display screen assembly (10) includes a display screen (1), a first light source (2), a light conducting member (5), a receiving element (3), and a processor (4). The display screen (1) includes a display region (1a) for displaying images and a non-display region (1b) surrounding the display region (1a). The light conducting member (5) faces the display region (1a). At least one first light source (2) faces at least one surface of the light conducting member (5). The at least one first light source (2) is configured to emit a detection signal (a) to the light conducting member (5). The light conducting member (5) is configured to diffuse the detection signal (a) to allow the detection signal (a) to pass through the display region (1a), to interact with a detection object (M) to form a target signal (b). The receiving element (3) is disposed in the display region (a) and configured to receive the target signal (b). The processor (4) is electrically coupled with the at least one first light source (2) and the receiving element (3). The processor (4) is configured to detect a distance between the display region (1a) and the detection object (M) according to one of an intensity of the target signal (b) and a difference between a transmission time of the detection signal (a) and a reception time of the target signal (b). The display screen assembly is capable of improving a screen-to-body ratio of the electronic device.