Display Pixel Segmentation for Gate Signal Charging Time
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Solution Overview
Problem
In high-resolution display devices, the increasing number of gate signals leads to a decrease in the active period of each gate signal, necessitating a technique to secure the charging time of pixels for improved visibility.
Innovation Solution
The implementation of a display device design where two different gate signals overlap, with one gate signal having a longer active period than the other, allowing for sufficient charging time of high and low pixels with distinct voltages, thereby enhancing visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to implement high resolution, then the display resolution is improved, but the active period of each gate signal decreases
Solution Approach 1:
Each pixel is divided into high pixels and low pixels that are differently charged, allowing the pixel to be segmented into multiple functional regions. This segmentation enables the pixel to maintain adequate charging time while supporting higher display resolution through the differential charging mechanism.
Solution Approach 2:
The patent applies periodic gate signals with different active periods to high pixels and low pixels alternately. By using periodic action with varying signal durations, the system ensures that each pixel region receives sufficient charging time despite the increased total number of pixels, thereby resolving the contradiction between high resolution and adequate active period.
2Measurement precision
If the number of gate signals is increased to drive more pixels, then the display resolution is improved, but the charging time of pixels is reduced
Solution Approach 1:
The pixel structure is segmented into high pixels and low pixels with different charging requirements. This segmentation allows the system to manage charging time more effectively by applying differentiated gate signals to different segments, preventing the uniform time reduction that would occur with simply increasing the total number of gate signals.
Solution Approach 2:
Periodic gate signals with different active periods are applied alternately to high pixels and low pixels. This periodic action with varying durations ensures that each pixel segment receives adequate charging time despite the increased number of gate signals required for high-resolution displays, thereby maintaining sufficient charging time while achieving high resolution.
3Measurement precision
If the active period of gate signals is reduced due to increased pixel density, then the display resolution is improved, but the visibility is degraded
Solution Approach 1:
By segmenting each pixel into high pixels and low pixels with different charging characteristics, the system can maintain adequate charging time for visibility while supporting high resolution. The differential charging ensures that each segment achieves proper illumination intensity despite the reduced overall active period caused by higher pixel density.
Solution Approach 2:
The application of periodic gate signals with different active periods to high pixels and low pixels alternately ensures that each pixel segment receives sufficient charging time for proper illumination. This periodic differentiated signaling maintains visibility by ensuring adequate charging duration for each segment while enabling high resolution through the increased total number of pixels.
Data Source
AI summary
A display device includes first and second pixels. The first pixel includes a first high pixel connected to an i-th gate line and a j-th data line and a first low pixel connected to an (i+1)-th gate line and the j-th data line. The second pixel includes a second high pixel connected to the i-th gate line and a (j+1)-th data line and a second low pixel connected to the (i+1)-th gate line and the (j+1)-th data line.