Display Panel Segmented Pixel Charging for High Refresh Rate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Large-size or high-resolution display panels have a low refresh rate, which is not beneficial for displaying dynamic images due to the time-consuming line-by-line scanning method.
Innovation Solution
The display panel design includes a first mode where multiple adjacent rows of pixel units are simultaneously turned on, allowing sub-pixels of the same color in adjacent columns to display the same gray scale, and a second mode where rows are turned on sequentially, each sub-pixel displaying a corresponding gray scale, with a refresh rate and resolution that are negatively correlated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If line-by-line scanning method is used to drive display panels, then manufacturing and control are simplified, but the refresh rate becomes low which is not beneficial for displaying dynamic images
Solution Approach 1:
The pixel electrodes are divided into multiple groups (first group and second group) that can be charged independently through different scan lines. This segmentation allows simultaneous charging of multiple pixel groups, thereby increasing the refresh rate and reducing the time required to complete a full frame display.
2Measurement precision
If the number of pixel electrodes is increased for large-size or high-resolution display panels, then display quality is improved, but the refresh rate decreases due to increased charging time
Solution Approach 1:
The pixel electrodes are divided into multiple groups that can be charged independently. This allows the display panel to maintain high resolution with many pixel electrodes while achieving higher refresh rates by parallelizing the charging process across multiple groups.
Solution Approach 2:
The display panel dynamically switches between different scanning modes: a first scanning mode for high refresh rate (charging multiple groups simultaneously) and a second scanning mode for high resolution (sequential row-by-row scanning). This dynamic adaptation allows the system to optimize between refresh rate and resolution based on display requirements.
Data Source
AI summary
Provided are a display panel and an electronic terminal, including pixel units arranged along row and column directions. The pixel unit includes sub-pixels of different colors arranged along the row direction. In a first mode, two adjacent groups of pixel units are simultaneously turned on, and the sub-pixels of a same color in two adjacent columns of pixel units display a same gray scale. In a second mode, a plurality of rows of pixel units are turned on sequentially, and each sub-pixel in a plurality of columns of pixel units displays a corresponding gray scale. The refresh rate of the first mode is greater than that of the second mode, and the resolution of the first mode is smaller than that of the second mode. This shortens the time required for all rows of pixel units to be turned on, thereby increasing the refresh rate.