Display Panel Light-Transmissible Structure for Camera Integration
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Solution Overview
Problem
Current smartphones face a challenge in achieving a high screen-to-body ratio with large screens, as the space required for front-facing cameras limits the compact design, necessitating a solution to increase the display area without compromising the camera's placement.
Innovation Solution
A display panel with a light-transmissible structure, such as a groove or hollowed-out gap portion, is created to allow light to pass through to an optical sensing element, eliminating the need for bezel space and enabling a higher screen-to-body ratio by positioning the optical sensing element on the non-display side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the optical sensing element is placed at the bezel, then the camera function is achieved, but the screen-to-body ratio is reduced
Solution Approach 1:
The optical sensing element is relocated from the traditional bezel area to the non-display side of the display panel, utilizing the third dimension (depth/thickness) to resolve the spatial conflict. This allows the camera to be positioned at the back of the display panel while maintaining a narrow or invisible bezel, thereby achieving a high screen-to-body ratio without compromising camera functionality
Solution Approach 2:
The optical sensing element is extracted from the bezel structure and integrated into the non-display side of the display panel. This separation allows the display area to expand to the edges of the device while the optical sensing element maintains its function through the light-transmissible structure, effectively removing the bezel space requirement
2Area of moving object
If the bezel size is reduced, then the screen-to-body ratio increases, but the optical sensing element cannot receive sufficient light
Solution Approach 1:
By positioning the optical sensing element on the non-display side of the display panel and creating a light-transmissible structure that extends through the display region, the patent utilizes the vertical dimension to transmit light from the display side to the optical sensing element, ensuring sufficient light reception even with minimal or no bezel
Solution Approach 2:
A light-transmissible structure is introduced as an intermediary between the display region and the optical sensing element. This structure includes a gap portion that allows light to pass through while maintaining the integrity of the display panel, ensuring adequate light transmission to the optical sensing element positioned on the non-display side
3Area of moving object
If the display panel covers the entire front surface, then the screen-to-body ratio increases, but the optical sensing element placement becomes constrained
Solution Approach 1:
The patent resolves the placement constraint by moving the optical sensing element to the non-display side of the display panel, utilizing the vertical dimension rather than the horizontal bezel area. This allows the display panel to extend to the edges of the device while providing adequate space for the optical sensing element on the opposite side
Solution Approach 2:
The display panel is functionally segmented into a display region and a non-display side, with the optical sensing element positioned on the non-display side. This segmentation allows the display area to maximize the front surface while the optical sensing element is accommodated on the back, providing placement flexibility without compromising screen-to-body ratio
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 increases the screen-to-body ratio and optimizes the display effect by allowing sufficient light transmittance for optical sensing elements like cameras, reducing the bezel size and enhancing user experience.
Implementation Method 1
a light-transmissible structure including the gap portion and configured to allow a light beam to pass therethrough to an optical sensing element
Data Source
AI summary
A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a plurality of functional layers arranged on a base substrate. A portion of at least one of the functional layers is removed to form a gap portion. The display panel further includes a light-transmissible structure including the gap portion and configured to allow a light beam to pass therethrough to an optical sensing element arranged at a position corresponding to the light-transmissible structure. An orthogonal projection of the gap portion onto the base substrate overlaps an orthogonal projection of the optical sensing element onto the base substrate.