Display Module Bezel Light Propagation Gap
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Solution Overview
Problem
Existing display technologies face challenges in achieving optimal light output and structural stability for silicon-based OLED microdisplays, particularly in near-eye applications, where the integration with optical lenses and double-layer glass cover plates is necessary for improved reliability and optical performance.
Innovation Solution
A display module design featuring a bezel with a first and second fixing portion, where the second fixing portion is positioned between the cover plate and the lens layer, creating a light propagation gap to prevent light blocking and enhance lateral light output, while ensuring structural stability through adhesive bonding and a bezel structure that supports the lens layer without obstructing light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a bezel structure is added to support the lens layer, then structural stability is improved, but light output is blocked
Solution Approach 1:
The bezel is divided into a first fixing portion and a second fixing portion, with the second fixing portion creating a light propagation gap. This segmentation allows the bezel to provide structural support while leaving a dedicated light path clear, resolving the contradiction between stability and light output.
Solution Approach 2:
The light propagation gap acts as an intermediary space between the second fixing portion and the lens layer, allowing light to pass through without being blocked by the bezel structure. This intermediary element enables both structural support and light transmission to coexist.
2Reliability
If the module size is increased to accommodate optical components, then imaging ability is improved, but the display becomes less thin and flexible
Solution Approach 1:
The optical components are arranged in a stacked configuration along the thickness dimension rather than expanding the planar area. The lens layer is positioned above the cover plate, and the bezel structures are integrated vertically, allowing high imaging ability while maintaining a thin profile suitable for flexible displays.
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 design enhances light output rate and stability of the display module, allowing for a larger field of view and high imaging ability in near-eye VR/AR/MR displays without increasing the module's size, while maintaining the thinness and flexibility of the silicon-based OLED microdisplays.
Implementation Method 1
an adhesive layer is also included, and the adhesive layer is located between the second fixing portion and the cover plate, and bonds the second fixing portion and the cover plate
Data Source
AI summary
A display module and a display apparatus. The display module comprises: a display substrate (10); a cover plate (20) located on one side of the display substrate (10); a lens layer (30) located on the side of the cover plate (20) distant from the display substrate (10); and a frame (40). The frame (40) comprises: a first fixing part (41) located on the outer side of the cover plate (20), the first fixing part (41) abutting against the lens layer (30); and a second fixing part (42) connected to the first fixing part (41), the second fixing part (42) being located between the cover plate (20) and the lens layer (30), and the second fixing part (42) abutting against the cover plate (20). A light propagation gap (50) is formed between the second fixing part (42) and the lens layer (30).