Modular Display Panel Stacking to Prevent Light Leakage Seams
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Solution Overview
Problem
Display panels with micro LEDs experience light leakage and seam visibility due to optical deviations when multiple modules are connected, which affects the display's luminance, resolution, and color expression.
Innovation Solution
A stacked structure of modularized color converter and backlight modules with a specific adhesive layer thickness and barrier rib configuration to prevent light leakage, enhancing color gamut and contrast ratio by controlling the light path between micro LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display modules are connected to extend the display area, then the display size is increased, but light leakage and seam visibility occur at the borders between modules
Solution Approach 1:
A light blocking structure is introduced as an intermediary element between adjacent display modules to prevent light from one module from leaking into another. This light blocking structure acts as a mediator that solves the light leakage problem while allowing the display modules to remain connected for extended display area.
Solution Approach 2:
The display system is divided into separate modular units with distinct boundaries. By segmenting the display into multiple modules with light blocking structures at the interfaces, the patent enables independent optimization of each module while preventing optical interference between them.
2Area of stationary object
If multiple display modules are connected to extend the display area, then the display size is increased, but seam visibility occurs between modules
Solution Approach 1:
The light blocking structure serves as a visual intermediary that masks the boundaries between modules. By positioning this structure to block both light and visual perception of the seam, the patent maintains visual uniformity across the extended display area.
3Ease of manufacture
If the adhesive layer thickness is increased to accommodate manufacturing tolerances, then assembly ease is improved, but light path control precision deteriorates
Solution Approach 1:
The light blocking structure acts as an intermediary reference element that defines the precise light path geometry. By positioning this structure at a specific distance from the light source, the patent establishes a reference frame that compensates for adhesive layer thickness variations, maintaining light path alignment precision while allowing manufacturing tolerances.
4Measurement precision
If the distance between pixel area and adjacent light source member is reduced to increase pixel density, then resolution is improved, but light leakage to adjacent subpixels increases
Solution Approach 1:
The light blocking structure is positioned as an intermediary between the light source member and adjacent pixel areas. By placing this structure at a calculated distance, the patent enables reduced spacing between pixels while preventing cross-talk light from reaching adjacent subpixels, thus improving resolution without increasing light leakage.
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 effectively prevents light leakage and seam visibility, improving the display's luminance, resolution, and color expression by ensuring precise light control and alignment between micro LEDs, thereby enhancing the overall display quality.
Implementation Method 1
a quantum dot disposed in at least one of the first pixel area, the second pixel area, and the third pixel area
Data Source
AI summary
A display panel includes a backlight module including a substrate, a first light source member disposed on a surface of the substrate, a second light source member disposed on the surface of the substrate, and a third light source member disposed on the surface of the substrate, a color converter module disposed on the surface of the substrate and including a color converter layer, the color converter layer including a first pixel area corresponding to the first light source member, a second pixel area corresponding to the second light source member, a third pixel area corresponding to the third light source member, and a quantum dot disposed in at least one of the first pixel area, the second pixel area, and the third pixel area, and a first adhesive layer disposed between the color converter module and the backlight module.