Adhering Layer for Narrow-Bezel Display Light Leakage
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Solution Overview
Problem
Existing displaying modules with extremely-narrow-border-frame screens face challenges such as high difficulty in fabrication, insufficient mechanical strength, and excessive edge light leakage due to the low width of the black matrix, which complicates the assembly and reduces display quality.
Innovation Solution
A displaying module comprising a liquid-crystal display panel, an adhering layer, and an optical film arranged in a layer configuration, where the adhering layer is disposed between the liquid-crystal display panel and the optical film to ensure full adhesion, eliminating the need for a middle frame and enhancing mechanical strength and light management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional middle frame is used to support the optical film, then the mechanical strength is sufficient, but the frame shields the displayed frame and cannot satisfy the requirement for extremely-narrow-border-frame screens
Solution Approach 1:
The patent removes the traditional middle frame structure from the display module. Instead of using a separate frame to support the optical film, the invention directly bonds the optical film to the liquid crystal display panel through adhesive layers, eliminating the frame component that would shield the display and simplify the overall structure for extremely-narrow-border-frame applications
Solution Approach 2:
The patent merges the support function previously performed by the middle frame into the adhesive bonding system. The adhesive layer not only bonds the optical film to the panel but also provides structural support, combining multiple functions into a single integrated solution that eliminates the need for a separate frame structure
2Length of moving object
If the black matrix width is reduced for extremely-narrow-border-frame screens, then the display border is narrower, but edge light leakage increases due to insufficient light shielding
Solution Approach 1:
The patent introduces a light shielding layer as an intermediary component between the liquid crystal display panel and the optical film. This layer, positioned at the edges and made of light-absorbing materials, actively blocks stray light from leaking while allowing the black matrix to maintain its reduced width for the extremely-narrow-border-frame design
Solution Approach 2:
The patent applies light shielding properties locally at the edge regions where light leakage occurs, rather than requiring the entire black matrix to be wide. The light shielding layer is specifically positioned at the periphery to address the local light leakage problem while maintaining the overall narrow border design
3Device complexity
If a simple extremely narrow middle frame is used, then the device complexity is reduced, but the fabricating difficulty increases and mechanical strength becomes insufficient
Solution Approach 1:
The patent removes the middle frame component entirely, eliminating the complex fabrication processes associated with creating and assembling narrow frames. The optical film is directly bonded to the panel, simplifying the manufacturing process while maintaining structural integrity through the adhesive bonding system
4Device complexity
If the middle frame is removed for narrow border design, then the display quality is improved, but the contact area with optical film is excessively small and cannot press the optical film properly
Solution Approach 1:
The patent merges the bonding and pressing functions into a single adhesive layer system. The adhesive not only bonds the optical film to the panel but also provides sufficient contact area and pressing force through its material properties and layer configuration, eliminating the need for a mechanical frame to provide contact and pressure
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
The solution achieves increased luminous efficiency, reduced power consumption and costs, and improved display quality by eliminating edge light leakage and simplifying the assembly process, while maintaining a lightweight and thin design.
Implementation Method 1
the adhering layer is disposed between a shadow surface of the liquid-crystal display panel and the optical film, and is configured for adhesively bonding the liquid-crystal display panel and the optical film
Implementation Method 2
the adhering layer is an atomized adhering layer, and the atomized adhering layer includes an adhesive layer and diffusing particles dispersed in the adhesive layer
Implementation Method 3
the optical film includes a first light diffusing layer, and the first light diffusing layer is distal to the liquid-crystal display panel, and a haze value of the first light diffusing layer is larger than or equal to 75%
Implementation Method 4
the optical film includes a first prism layer and a second prism layer, the first prism layer includes a plurality of first prism columns parallel to each other, the second prism layer includes a plurality of second prism columns parallel to each other
Data Source
AI summary
A displaying module and a method for manufacturing the same, and a displaying, device, which relates to the technical field of displaying. The displaying module includes a liquid-crystal display panel, an adhering layer and an optical film that are arranged in layer configuration; the adhering layer is disposed between a shadow surface of the liquid-crystal display panel and the optical film, and is configured for adhesively bonding the liquid-crystal display panel and the optical film; and an orthographic projection of the adhering layer on the liquid-crystal display panel covers at least an active area of the liquid-crystal display panel, and an orthographic projection of the optical film on the liquid-crystal display panel covers at least the active area of the liquid-crystal display panel.