Display Panel Pixel Group Arrangement for 3D Crosstalk Reduction

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Solution Overview

Problem

Conventional 3D display technologies face issues with crosstalk, reduced resolution, and brightness differences when switching from 2D to 3D display, leading to suboptimal display quality.

Innovation Solution

A display panel with a matrix arrangement of pixel groups, each comprising four subpixels (red, green, blue, and white) that maintain the same vertical resolution and brightness in both 2D and 3D modes, achieved by mirroring subpixel arrangements and using polarizing films to drive the panel effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high-resolution display panel is utilized for improving 2D display quality, then 2D display quality is improved, but charging time and blanking time requirements are not satisfied in 3D display mode, causing increased crosstalk

Engineering Contradiction:
Improvedisplay qualityVSAvoidcrosstalk
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The display panel is segmented into multiple pixel groups, with each pixel group containing four sub-regions (first, second, third, and fourth sub-regions). Each sub-region has its own set of subpixels (red, green, blue, and white). This segmentation allows different pixel groups to display different pictures (left eye picture, right eye picture, or 2D picture) simultaneously, enabling high-resolution 2D display while satisfying charging and blanking time requirements for 3D display by controlling specific pixel groups.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If display mode switches from 2D picture display to 3D picture display, then 3D display is achieved, but resolution of displayed left and right eye pictures is reduced

Engineering Contradiction:
Improvedisplay modeVSAvoidresolution
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

Each pixel group is designed to be multi-functional, capable of displaying different types of pictures based on control signals. The control circuit can selectively activate different pixel groups for different purposes: some pixel groups display left eye pictures, others display right eye pictures, and others display 2D pictures. This universal design allows the display panel to switch between 2D and 3D modes while maintaining high resolution in both modes, as each pixel group uses the full set of subpixels (red, green, blue, and white) regardless of which picture type is being displayed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If display mode switches from 2D picture display to 3D picture display, then 3D display is achieved, but brightness of displayed 3D picture differs significantly from brightness of displayed 2D picture

Engineering Contradiction:
Improvedisplay modeVSAvoidbrightness
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The invention introduces asymmetric control strategies for different picture types. When displaying 2D pictures, all subpixels (red, green, blue, and white) in all pixel groups are activated. When displaying 3D pictures, only specific subpixels in specific pixel groups are activated based on whether they need to display left eye pictures, right eye pictures, or 2D pictures. The control circuit adjusts the driving signals to compensate for brightness differences, ensuring that the overall brightness perception remains consistent between 2D and 3D display modes despite the selective activation of different pixel groups.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS9900590B2Display panel and method of driving the same, and display device
Publication Date: 2018.02.20 BOE TECHNOLOGY GROUP CO LTD
  • US9900590B2 patent drawing
  • US9900590B2 patent drawing
  • US9900590B2 patent drawing

AI summary

The embodiments of the present invention provide a display panel and a driving method thereof, and a display device. The display panel comprises a plurality of pixel groups, each of which comprises four different sub-regions arranging in a matrix with two rows and two columns, each of the sub-regions has one first color subpixel, one second color subpixel, one third color subpixel and one fourth color subpixel arranging in a matrix with two rows and two columns, each row of subpixels in the pixel group consist of one first color subpixel, one second color subpixel, one third color subpixel and one fourth color subpixel, and a first row of subpixels and a fourth row of subpixels in the pixel group have the same arrangement structure of subpixels, and a second row of subpixels and a third row of subpixels in the pixel group have the same arrangement structure of subpixels.