Display Panel Black Matrix Protective Layer Laser Repair
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Solution Overview
Problem
Laser repair in low temperature poly-silicon technology can cause light leakage through holes formed in the black matrix of display panels due to high-intensity laser penetration.
Innovation Solution
A display panel design featuring a color filter plate substrate with a protective organic layer on the black matrix, positioned to absorb laser incidence during repair, and spacers strategically placed to support the black matrix and prevent light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-intensity laser is used for repair, then repair effectiveness is improved, but light leakage occurs through holes formed in the black matrix
Solution Approach 1:
A protective layer is pre-formed on the black matrix at the laser incidence region before laser repair is performed. This protective layer absorbs the high-intensity laser energy, preventing the laser from penetrating through and creating holes in the black matrix, thereby eliminating light leakage while maintaining repair effectiveness
Solution Approach 2:
The protective layer acts as an intermediary between the laser and the black matrix. It intercepts and absorbs the laser energy, serving as a buffer that protects the black matrix from direct laser impact while allowing the laser repair process to proceed effectively
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 protective layer effectively prevents light leakage by absorbing excessive laser intensity and reducing material consumption while maintaining structural integrity.
Implementation Method 1
the protective layer can protect the black matrix during laser repair from forming a through-hole on the black matrix that can leak light
Data Source
AI summary
The present disclosure discloses a display panel, including a color filter plate substrate and an array substrate; the color filter plate substrate includes a black matrix and a protective layer; the color filter plate substrate and the array substrate are disposed opposite; the protective layer is disposed on a side of the black matrix oriented to the array substrate in a laser incidence region during laser repair. The protective layer is disposed on a side of the black matrix oriented to the array substrate in a laser incidence region during laser repair according to the disclosure, therefore, the preventive layer can protect the black matrix during laser repair from forming a through-hole on the black matrix that can leak light.