Display Module Light-Absorbing Layer Reduces Leakage
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Solution Overview
Problem
Conventional display modules experience light leakage when viewed from wider angles due to a shorter light path between the backlight module and the housing, leading to reduced display effectiveness.
Innovation Solution
A display module with a light-absorbing layer applied to the inner surface of the housing, specifically positioned to correspond with the light guide plate, reduces light gathering and minimizes light leakage, enhancing the display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the light path between the backlight module and the housing is shortened, then the display module achieves narrower borders and is applied to electronic products, but light leakage occurs when watching at wider visual angles and display effect diminishes
Solution Approach 1:
A light-absorbing layer is introduced as an intermediary element between the light guide plate and the housing. This layer specifically absorbs excess light in the region where the light path is shorter, preventing light leakage when viewed from wider angles while maintaining the shortened light path design for narrow borders.
Solution Approach 2:
The light-absorbing layer is selectively applied only to the specific region of the housing that corresponds to the light guide plate position. This localized treatment addresses the light leakage problem only where it occurs (at wider viewing angles) without affecting other areas of the display, maintaining overall display quality and narrow border design.
2Object-affected harmful factors
If a light-absorbing layer is disposed at the inner surface of the housing corresponding to the light guide plate, then light leakage is prevented when watching at wider visual angles, but the device structure becomes more complex
Solution Approach 1:
The light-absorbing layer is integrated directly onto the inner surface of the existing housing structure. By merging the light-absorbing function with the housing itself rather than adding a separate component, the design prevents light leakage while minimizing increases in structural complexity.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, defines the display boundary, and with the added light-absorbing layer, also functions as a light management component. This multi-functionality reduces the need for additional dedicated light-absorbing components, thereby limiting the increase in device complexity.
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 implementation of a light-absorbing layer on the housing's inner surface decreases light leakage when viewing from wider angles, thereby improving the display's visual performance and maintaining brightness uniformity.
Implementation Method 1
a light-absorbing layer is disposed at least on an inner surface of a first side of the housing, and a position of the light-absorbing layer corresponds at least to a position of the light guide plate
Data Source
AI summary
The present invention provides a display module and an electronic device, and the display module includes a backlight module, with a light source disposing on one side of a light guide plate; a liquid crystal display panel; a housing, wherein an interior of the housing accommodates the backlight module and the liquid crystal display panel, a light-absorbing layer is disposed at least on an inner surface of a first side of the housing, and a position of the light-absorbing layer corresponds at least to a position of the light guide plate, and wherein the first side is a side facing the light source and distant from the light source.