Elongated Stripe Connection Terminal Mitigates Light Reflection
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Solution Overview
Problem
Conventional liquid crystal display devices experience unsatisfactory user experiences due to light-reflection issues caused by the square-shaped connection terminals, which either lead to light-leaking or light-reflection problems depending on the metal layer configuration.
Innovation Solution
The implementation of a liquid crystal display panel with an elongated stripe-shaped connection terminal, where the space between the connection terminal and the common electrode layer is filled with an electrically conductive material, and the connection terminal is constituted by an auxiliary conductive layer or an electrically conductive electrode layer exposed via a through-hole, with a photoresist layer blocking light to mitigate light-reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connection terminal is made with a square shape and the first metal layer is mesh-shaped, then the connection terminal can be formed, but light-leaking issues occur in the display device
Solution Approach 1:
The connection terminal is divided into multiple segments: the first metal layer (mesh-shaped for electrical connection), the light-shielding layer (black matrix for light blocking), and the auxiliary conductive layer (conductive material for electrical connection). This segmentation allows each layer to perform its specific function without causing light-leaking issues.
2Ease of manufacture
If the first metal layer is formed to have a whole plane made of metal, then the connection terminal can be formed, but light-reflection issues occur in the display device
Solution Approach 1:
The light-shielding layer is positioned specifically at the connection terminal region where light-reflection problems occur, while the first metal layer maintains its electrical conductivity function. This local placement of the light-shielding layer eliminates light-reflection issues without affecting the overall electrical connection functionality.
3Object-affected harmful factors
If the light-shielding layer is positioned at the connection terminal region, then light-reflection issues are eliminated, but the structure becomes more complex
Solution Approach 1:
The light-shielding layer, first metal layer, and auxiliary conductive layer are merged into a single integrated structure at the connection terminal region. This combination allows the light-shielding function to be achieved without adding separate complex components, as the light-shielding layer is integrated with the existing metal layer structure.
Data Source
AI summary
The present disclosure provides a liquid crystal display panel and a display device. The liquid crystal display panel includes an upper substrate and a lower substrate disposed opposite to the upper substrate. The lower substrate includes a non-display area having a connection terminal disposed therein. The connection terminal has an elongated stripe shape. By replacing the connection terminal having a square shape or a square-like shape with a connection terminal having an elongated stripe shape, light-reflection problems caused by metal having a large area in a local region are mitigated. Therefore, the technical problem that user experiences of using display devices are unsatisfactory because of light-reflection issues caused by conventional connection terminal is solved.