Light Blocking Layer for Narrow Bezel Display Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices with narrow bezels face challenges in preventing light leakage and ensuring uniform light distribution, which affects image quality and aesthetics.
Innovation Solution
The display device incorporates a light blocking layer covering the side surfaces of an optical member, a support member with specific portions to maintain a gap between the light source and the optical member, and an adhesive member to couple the support and optical members, ensuring uniform light distribution and preventing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the bezel width is reduced to improve visibility and aesthetics, then the display surface visibility is improved, but light leakage control becomes more difficult
Solution Approach 1:
A light blocking layer is introduced as an intermediary element between the optical member and the display panel. This layer specifically targets and blocks stray light that would otherwise leak into the display area, resolving the light leakage issue without requiring a larger bezel.
Solution Approach 2:
The solution moves from a two-dimensional bezel boundary control to a three-dimensional approach by adding the light blocking layer that extends into the optical path. This allows light control in the vertical dimension rather than relying solely on horizontal bezel width.
2Ease of manufacture
If the support member structure is simplified to improve assemblability, then manufacturing ease is improved, but light distribution uniformity may be compromised
Solution Approach 1:
The support member is divided into multiple portions (first portion, second portion, third portion) that can be manufactured and assembled separately. This segmentation improves assemblability while maintaining the precise positioning needed for uniform light distribution through the structured arrangement of segments.
Solution Approach 2:
The support member serves multiple functions: it provides mechanical support for the optical member, maintains precise positioning for uniform light distribution, and integrates with the light blocking layer. This multi-functionality achieves both ease of manufacture and manufacturing precision.
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 enhances the display device's aesthetics and reliability by preventing light leakage and providing uniform light to the entire active area, resulting in improved image quality.
Implementation Method 1
The light blocking layer is configured to reflect a light incident thereto
Implementation Method 2
The optical member includes a wavelength conversion panel, and the light blocking layer covers a side surface of the wavelength conversion panel
Data Source
AI summary
A display device includes a display panel including a display surface in which an active area configured to display an image and a peripheral area disposed adjacent to the active area are defined, a light source configured to provide a light to the display panel, an optical member disposed between the light source and the display panel, a light blocking layer covering a side surface of the optical member, a support member supporting the optical member, and an intermediate protective member disposed between the display panel and the light source to support the display panel. The support member is supported by the intermediate protective member.