Display Panel Function Hole Shadow Removal Layer
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Solution Overview
Problem
Current display technologies face challenges in effectively hiding function holes, leading to visible chromatic aberration between screen printed semi-transparent ink and light blocking materials, which affects the visual experience by causing color shifts and poor integrated color effects.
Innovation Solution
A display panel structure comprising a substrate with a light blocking layer, an intermediate 'shadow removing' layer that entirely covers the through-hole, and a semi-transparent layer, where the intermediate layer is made of materials like silicon oxynitride or niobium oxide, and the semi-transparent layer is formed using infrared radiation or blacking ink, enhancing the integrated color effect by reducing chromatic aberration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If screen printed semi-transparent ink is used to cover function holes, then the holes are partially hidden, but chromatic aberration and color shifts occur between the ink and light blocking materials
Solution Approach 1:
An intermediate layer is introduced between the light blocking layer and the semi-transparent layer. This intermediate layer acts as a mediator that optically matches the refractive indices of adjacent layers, eliminating the chromatic aberration and color shifts that occur when semi-transparent ink is directly applied over light blocking materials.
Solution Approach 2:
The patent employs a composite multi-layer structure consisting of different materials (light blocking layer, intermediate layer, and semi-transparent layer) with specifically selected refractive indices. This composite structure achieves superior optical performance by combining materials with complementary properties to eliminate visible color defects.
2Adaptability or versatility
If function holes are provided on the display product to enable additional functions, then functionality is enhanced, but the visual appearance is degraded due to visible holes and color shifts
Solution Approach 1:
The intermediate layer serves as an optical mediator that allows light to pass through function holes while maintaining visual uniformity. It enables additional functions (camera, sensor) to be integrated without compromising the display's visual appearance by eliminating the visibility of holes and associated color defects.
3Manufacturing precision
If a protection layer is added to cover the bottom of the through-hole, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The intermediate layer performs multiple functions simultaneously: it provides protection by covering the bottom and side walls of the through-hole, serves as an optical intermediary to eliminate chromatic aberration, and maintains structural integrity. This multi-functionality reduces the need for separate protection layers, 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 solution achieves an invisible appearance of function holes with no color shift between the semi-transparent and light blocking materials, improving the visual experience by ensuring a uniform color effect and better hiding of function holes.
Implementation Method 1
an intermediate layer disposed on the substrate and at least entirely covering a bottom of the through-hole
Implementation Method 2
the semi-transparent layer is made of an infrared radiation ink or blacking ink
Data Source
AI summary
A display panel and a manufacturing method thereof, and a display apparatus are provided. The display panel is provided with a function hole, the display panel includes a substrate; and a laminated structure for the function hole formed on a substrate; the laminated structure includes a light blocking layer, a semi-transparent layer and a shadow removing layer, the shadow removing layer is provided between the light blocking layer and the semi-transparent layer, and at least entirely covers the function hole. For the display panel, the L value of the semi-transparent ink or blacking ink at the function hole is increased by additionally providing the shadow removing layer at the function hole, reducing the chromatic aberration between the screen printed semi-transparent layer and the light blocking layer at the function hole.