OLED Display Panel Sub-Pixel Arrangement for Transparent Region Color Balance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing OLED display panels face challenges in achieving high-quality transparent displays due to lower pixel density in transparent regions, leading to poor image quality and color edges, and require complex gamma correction processes to manage luminance and color balance across different regions.
Innovation Solution
The display panel and driving method involve a configuration where first and second pixel units, each with specific sub-pixel arrangements and emission colors, are driven using a single group of adjusted gamma curves to maintain white balance and reduce color deviation, simplifying the gamma correction process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the PPI of the transparent region is reduced to achieve local transparent display, then transparency is improved, but image quality deteriorates due to lower pixel density
Solution Approach 1:
The patent applies different sub-pixel arrangements to different regions: the transparent region uses a arrangement with two sub-pixels of the first color to achieve transparency, while the non-transparent region uses a different arrangement for high image quality. Each region has optimized sub-pixel configuration matching its specific requirements.
Solution Approach 2:
The patent changes the sub-pixel configuration parameters between regions. In the transparent region, two sub-pixels of the first color are arranged to provide transparency, while in the non-transparent region, the sub-pixel arrangement is optimized for image quality. The light-emitting current ratios are also adjusted to maintain color balance across regions.
2Manufacturing precision
If separate gamma correction is applied to transparent and non-transparent regions, then color balance is improved, but device complexity increases
Solution Approach 1:
The patent merges the gamma correction process by using a single group of gamma curves to control sub-pixels of the same color across both transparent and non-transparent regions. This unified approach maintains color balance while reducing the complexity of managing separate correction processes for each region.
Solution Approach 2:
The gamma curves are designed to be universal for controlling sub-pixels of the same color regardless of region type. The same gamma curve can be applied to first color sub-pixels in both transparent and non-transparent regions, simplifying the control system while maintaining color accuracy.
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 alleviates color deviation issues in transparent regions and simplifies the gamma correction process by allowing both pixel units to be driven with the same gamma curves, improving image quality and luminance balance without the need for separate correction for each region.
Implementation Method 1
each of the sub-pixels in the first pixel unit is located in one sub-pixel region, and there are two of the sub-pixels in the first pixel unit, whose emission colors are a first color... when the first pixel units and the second pixel unit are in a white balance state, a light-emitting current of the sub-pixel whose emission color is a second color is equal to that of the sub-pixel whose emission color is a third color, and is two times a light-emitting current of the sub-pixel whose emission color is the first color
Data Source
AI summary
The present application discloses a display panel (1) and a driving method thereof, and a display device. The display panel (1) includes: a plurality of first pixel units (11) and at least one second pixel unit (12), wherein each of the first pixel units (11) and the second pixel unit (12) includes a plurality of sub-pixels; each of the sub-pixels in the first pixel unit (11) is in one sub-pixel region, and there are two of the sub-pixels in the first pixel unit (11) whose emission colors are a first color; and the plurality of sub-pixels in the second pixel unit (12) is in a plurality of sub-pixel regions arranged in an array, there are two adjacent sub-pixels in the second pixel unit (12) whose emission colors are the first color, and the two adjacent sub-pixels are in the same sub-pixel region.