Display Panel Through Holes for Infrared Distance Sensor Integration
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Solution Overview
Problem
The existing implementation of distance sensors in terminals, such as mobile phones and tablets, reduces the screen-to-body ratio and aesthetic appeal due to the need for an opening to emit and receive infrared light, hindering the development towards full-screen designs.
Innovation Solution
Incorporating a display panel with a pixel array and through holes between sub-pixels, along with an infrared light detector comprising an emitter array and a receiver array, allowing infrared light to pass through these holes for distance detection without occupying additional panel area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an opening is formed in the panel for the distance sensor, then distance detection function is achieved, but the screen-to-body ratio is reduced
Solution Approach 1:
The patent combines the distance sensor with the display panel structure by integrating the emitter array and receiver array into the panel layers. The sensor components are positioned to utilize the same space as the display structure, merging two previously separate functions into a unified component system, thereby eliminating the need for a separate opening in the panel.
Solution Approach 2:
The patent transitions from a two-dimensional surface mounting approach to a three-dimensional integrated structure. The emitter and receiver arrays are positioned at different depths within the panel layers, with the emitter in a first layer and the receiver in a second layer. This vertical stacking in the third dimension allows the sensor to function without compromising the front surface area of the display.
2Adaptability or versatility
If an opening is formed in the panel for the distance sensor, then infrared light emission and reception is enabled, but aesthetic appeal is reduced
Solution Approach 1:
The distance sensing function is merged with the display panel structure, eliminating the need for a visible opening. The emitter and receiver arrays are integrated into the panel's internal layers, allowing the front surface to maintain its continuous, uninterrupted aesthetic appearance while still enabling infrared light emission and reception through the structured design.
Solution Approach 2:
The patent employs a layered structure with thin film configurations where the emitter and receiver arrays are positioned within different layers. This allows the front display surface to remain intact and aesthetically pleasing while the infrared functionality is achieved through the structured arrangement of components within the panel's depth.
3Area of stationary object
If the emitter array and receiver array are integrated into the display panel, then no additional panel area is occupied, but light interference between display and sensor may occur
Solution Approach 1:
The patent applies different optical properties to different regions and layers of the panel structure. The emitter and receiver arrays are positioned in specific layers with controlled light transmission characteristics. Certain regions are designed to be transparent to infrared wavelengths while blocking visible light, creating localized optical zones that allow sensor functionality without interfering with display performance.
Solution Approach 2:
The patent utilizes composite material structures with varying optical properties across different layers. The panel incorporates materials that are selectively transparent or opaque to different wavelengths of light, allowing infrared light to pass through to the sensor arrays while blocking visible light to prevent interference with the display. This composite structure enables both functions to coexist without mutual interference.
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 increases the screen-to-body ratio, improves display performance, and enhances the aesthetic appeal by eliminating the need for a dedicated opening for the distance sensor, while maintaining effective distance detection capabilities.
Implementation Method 1
an emitter array and a receiver array, wherein the emitter array is configured to emit infrared light out through the through holes
Implementation Method 2
the receiver array is configured to receive infrared light emitted in through the through holes
Data Source
AI summary
The disclosure relates to a display panel including a pixel array including a plurality of sub-pixels; through holes formed in gaps between the plurality of sub-pixels; and an infrared light detector including an emitter array and a receiver array, wherein the emitter array is configured to emit infrared light out through the through holes, and the receiver array is configured to receive infrared light emitted in through the through holes.