Insulated Pixel Electrodes for Eye Protection Display Smear
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Solution Overview
Problem
Existing liquid crystal display technologies face the issue of picture smear due to extended response time when reducing blue light transmittance in eye protection mode, as lowering pixel electrode voltage increases response time and affects display quality.
Innovation Solution
An array substrate with a first and second thin-film transistor for each pixel unit, where the first pixel electrode is set to 0V and the second pixel electrode receives a data voltage in eye protection mode, allowing the liquid crystal to deflect only at the second pixel electrode, thus reducing transmittance without extending response time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the pixel electrode voltage is reduced to reduce blue light transmittance, then the blue light transmittance is reduced, but the response time of the liquid crystal is extended
Solution Approach 1:
The pixel electrode is divided into a first pixel electrode and a second pixel electrode that are insulated from each other. The first pixel electrode receives a first voltage (0V in eye protection mode) while the second pixel electrode receives a second voltage (data voltage in eye protection mode), allowing independent control of voltage levels to simultaneously reduce blue light transmittance and maintain response time
Solution Approach 2:
Different regions of the pixel electrode are assigned different voltage levels - the first pixel electrode region is set to 0V to block blue light, while the second pixel electrode region maintains data voltage to preserve response time. This local differentiation allows simultaneous achievement of blue light reduction and fast response
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
This approach effectively reduces blue light transmittance without increasing the response time of the liquid crystal, thereby preventing picture smear and maintaining display quality in eye protection mode.
Implementation Method 1
the liquid crystal corresponding to the first pixel electrode does not deflect, the liquid crystal corresponding to the second pixel electrode deflects with an angle corresponding to the data voltage
Data Source
AI summary
Provided are an array substrate, a liquid crystal display panel, and a pixel charging method. The array substrate comprises: a plurality of pixel units distributed in a matrix, a first thin-film transistor, and a second thin-film transistor; the first thin-film transistor and the second thin-film transistor corresponding to each pixel unit; each pixel unit comprising a first specific sub-pixel unit, the first specific sub-pixel unit comprising a first pixel electrode and a second pixel electrode insulated from the first pixel electrode; for each pixel unit, a drain electrode of the first thin-film transistor electrically connected with the first pixel electrode, a drain electrode of the second thin-film transistor electrically connected with the second pixel electrode. The present technical solution is mainly for use in the eye protection mode of liquid crystal display products, for improving picture smear problem caused by increase of response time of liquid crystal.