Shielding Electrode Suppresses Tip Discharge in TFT-LCD Array Substrates
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Solution Overview
Problem
The comb structure of pixel electrodes in TFT-LCDs causes tip discharge, leading to interference with neighboring sub-pixel units, data lines, and gate lines, affecting the display effect.
Innovation Solution
An array substrate with a shielding electrode electrically connected to the pixel electrode, arranged at least at one edge, effectively suppresses tip discharge and reduces interference between sub-pixel units, data lines, and gate lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a comb structure is used for the pixel electrode to achieve multi-domain display, then display capability is improved, but tip discharge occurs causing interference with neighboring sub-pixel units, data lines, and gate lines
Solution Approach 1:
A shielding electrode is introduced as an intermediary component between the pixel electrode and the surrounding data lines, gate lines, and neighboring sub-pixel units. This shielding electrode is electrically connected to the pixel electrode and serves as a mediator to block the tip discharge from reaching the surrounding components, thereby eliminating interference while preserving the comb structure's multi-domain display capability
Solution Approach 2:
The shielding electrode is positioned and connected in advance to prevent tip discharge from occurring and affecting surrounding components. By establishing this protective connection before the discharge can propagate, the harmful interference is preemptively blocked, allowing the comb structure to function without causing neighboring unit interference
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 eliminates interference and improves the display effect by preventing tip discharge from the comb-shaped pixel electrodes, enhancing the performance of the display panel.
Implementation Method 1
the base plate is further provided with a shielding electrode which is electrically connected with the pixel electrode... tip discharge of the pixel electrode having a comb structure can be effectively eliminated or suppressed
Data Source
AI summary
The present invention discloses an array substrate, a display panel, and a display device, for solving a problem of tip discharge a comb pixel electrode comprised in a sub-pixel unit in the prior art, which produces discharge to surrounding data lines, gate lines, and neighboring pixel electrodes, so that neighboring sub-pixel units are subject to interference and display effect is influenced. The array substrate comprises a base plate, the base plate is further provided with a plurality of sub-pixel units, each of the sub-pixel units comprises a pixel electrode of a comb structure, and the base plate is further provided with a shielding electrode which is electrically connected with the pixel electrode.