Display Panel Driving Method for Color Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies face challenges in efficiently driving pixels that output different color lights based on varying voltage ranges, leading to suboptimal image quality and resolution.
Innovation Solution
A method of driving a display panel by dividing an image frame into sub-frames and applying specific driving voltages to pixels, allowing each pixel to output different colors (such as red, green, and blue) corresponding to distinct voltage ranges, using organic light emitting elements with dielectrophoresis materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single driving voltage is applied to all pixels simultaneously, then the display structure is simple, but color uniformity and image quality deteriorate due to color break-up phenomena
Solution Approach 1:
The patent divides the display panel into multiple regions (first region, second region, third region) and applies different driving voltages to each region. Specifically, a first driving voltage is applied to pixels in the first region, a second driving voltage to pixels in the second region, and a third driving voltage to pixels in the third region. This segmentation approach prevents color break-up phenomena by optimizing voltage control for different pixel regions, thereby improving color uniformity while maintaining manageable system complexity through regional differentiation.
2Manufacturing precision
If different driving voltages are applied to different pixel regions, then color uniformity improves, but device complexity increases
Solution Approach 1:
The patent implements local quality by applying different driving voltages to different regions of the display panel based on their specific requirements. The first driving voltage is optimized for pixels in the first region, the second driving voltage for pixels in the second region, and the third driving voltage for pixels in the third region. This localized voltage control strategy improves color uniformity in each region while managing overall device complexity through systematic regional classification and targeted voltage application.
3Device complexity
If conventional display driving methods are used, then device complexity is low, but image resolution and quality are insufficient
Solution Approach 1:
The patent introduces dynamic voltage control by adjusting driving voltages based on pixel region and temporal characteristics. The system dynamically selects appropriate driving voltages (first, second, or third driving voltages) based on the temporal sub-frame and spatial region, enabling adaptive optimization of image quality and resolution. This dynamic approach improves measurement precision and image quality while managing device complexity through rule-based voltage selection criteria.
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 enhances image resolution and quality by precisely controlling pixel output, preventing color break-up phenomena and achieving higher resolution compared to conventional display devices.
Implementation Method 1
materials for an organic light emitting element to allow one pixel to implement two or more colors using dielectrophoresis and/or electrophoresis have been developed. In such an organic light emitting element, the dielectric particles may move differently in the dielectric medium when an electric field is formed in the structure as a driving voltage is applied to the pixel.
Data Source
AI summary
A method of driving a display panel including a plurality of pixels, each of which outputs different color lights corresponding to voltage ranges to which a driving voltage applied thereto belongs, includes dividing one image frame into first through third sub-frames, outputting a first color image displayed by a first color by applying a first driving voltage belonging to a first voltage range to the pixels in the first sub-frame, outputting a second color image displayed by a second color by applying a second driving voltage belonging to a second voltage range to the pixels in the second sub-frame, and outputting a third color image displayed by a third color by applying a third driving voltage belonging to a third voltage range to the pixels in the third sub-frame.