Display Module Curved Plastic Frame for Corner Light Leakage
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Solution Overview
Problem
Display panels with curved surfaces experience dark-state light leakage at the corners due to stress concentration and local distortion of liquid crystal, affecting the display effect.
Innovation Solution
A displaying module design featuring a plastic frame with a curved surface facing away from the display panel, dispersing stress to prevent concentration at the corners, comprising a back plate, light guide plate, and display panel, where the plastic frame's bearing face has a warping degree matching the display panel's curvature to alleviate light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the display panel is pressed or squeezed to achieve a curved surface, then the displaying module can be formed with a curved surface, but stress concentrates at the corners of the display panel causing liquid crystal distortion and dark-state light leakage
Solution Approach 1:
The plastic frame's bearing face is designed with a curved surface that curves in the direction away from the display panel, with a warping degree matching the display panel's curvature. This curvature design allows the frame to better accommodate the stressed state of the curved display panel, distributing stress more evenly and preventing corner stress concentration that causes light leakage.
2Shape
If the display panel is pressed or squeezed to achieve a curved surface, then the displaying module can be formed with a curved surface, but the liquid crystal of the display panel is locally distorted at the corners, whereby a dark-state light leakage happens
Solution Approach 1:
The plastic frame's bearing face is designed with a curved surface that curves in the direction away from the display panel, with a warping degree matching the display panel's curvature. This curvature design allows the frame to better accommodate the stressed state of the curved display panel, distributing stress more evenly and preventing corner stress concentration that causes light leakage.
Data Source
AI summary
A displaying module includes a back plate, a light guide plate fixed to the back plate, a plastic frame covering the back plate and a display panel located on the plastic frame, the plastic frame is of a shape of an annular frame, and the plastic frame includes a bearing face. A first position of the bearing face of the plastic frame is a curved surface, and the curved surface curves in a direction further away from the display panel, whereby a warping degree of the curved surface is a first warping degree, wherein the first position is a position of the bearing face that faces a second position of the display panel, the second position is a position of a region of the display panel where light leakage happens, and the first warping degree is equal to a warping degree of the display panel when the display panel curves.