Under-screen Camera Aperture Deformation Prevention
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Solution Overview
Problem
Conventional display devices face issues with aperture deformation and dents in the opening region due to insufficient or excessive application of light shielding adhesive, affecting product quality when an under-screen camera is integrated.
Innovation Solution
The display device incorporates functional layers with light transmissive and shielding regions on the display panel, aligned with a light shielding member in the backlight module, to precisely control light entry and prevent deformation, using materials like ink, black photoresist, or light-shielding metal for effective light shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light shielding adhesive is applied at the gap between lower polarizer and display panel to prevent backlight interference, then light shielding effect is improved, but manufacturing precision deteriorates due to overflow or insufficient application causing aperture deformation
Solution Approach 1:
The patent extracts the light shielding function from the adhesive layer and relocates it to a dedicated light shielding layer positioned between the backlight module and the opening. This separation allows the adhesive to focus solely on bonding without bearing the additional burden of precise light shielding, thereby eliminating aperture deformation caused by adhesive overflow or insufficient application.
Solution Approach 2:
The patent introduces a dedicated light shielding layer as an intermediary component between the backlight module and the opening. This intermediate layer specifically addresses the light shielding requirement without interfering with the adhesive bonding process, thus preventing aperture deformation while maintaining effective light shielding.
2Ease of operation
If opening serves as channel for under-screen camera to receive ambient light, then camera functionality is improved, but structural stability deteriorates due to lack of support causing dents in periphery of opening
Solution Approach 1:
The light shielding layer serves multiple functions simultaneously: it shields backlight from the opening, provides structural support to prevent dents in the opening periphery, and maintains the structural integrity of the display panel. This multi-functionality resolves the contradiction between camera light reception and structural stability.
Solution Approach 2:
The light shielding layer is constructed from composite materials that combine light shielding properties with structural support capabilities. This composite structure enables the layer to both shield backlight and provide mechanical support to prevent opening periphery dents, thereby maintaining both camera functionality and structural stability.
3Object-affected harmful factors
If light shielding adhesive is applied at boundary between opening region and backlight source, then light shielding effect is improved, but manufacturing complexity increases due to interference with adhesive layers at edges of opening
Solution Approach 1:
The patent extracts the light shielding function from the adhesive layers and assigns it to a dedicated light shielding layer. This extraction eliminates the interference between light shielding and adhesive bonding operations, simplifying the overall manufacturing process while maintaining effective light shielding.
Solution Approach 2:
The patent segments the light shielding function from the adhesive bonding function by creating a separate light shielding layer. This segmentation allows each layer to perform its specific function independently without interfering with the other, thereby reducing manufacturing complexity while maintaining effective light shielding.
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 ensures accurate light shielding, preventing aperture deformation and improving product quality by ensuring precise alignment and functionality of the under-screen camera.
Implementation Method 1
the functional region comprises a light transmissive region arranged corresponding to the first hole and a light shielding region around the light transmissive region
Implementation Method 2
external light passes through the light transmissive region of the functional layers and the first hole of the display panel and enters the camera module
Data Source
AI summary
The present invention provides a display device. Multiple functional layers on a display panel are provided with a functional region arranged corresponding to a camera module. The functional region includes a light transmissive region arranged corresponding to a first hole and a light shielding region arranged around the light transmissive region. The light shielding region is arranged corresponding to the light shielding member in a backlight module, and the light shielding region shields a light shielding member. Such configuration improves a problem that an aperture of an opening region of an under-screen camera deforms due to the light shielding member.