Staggered Pixel Repeat Units for Naked-Eye 3D Display Crosstalk Reduction

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Solution Overview

Problem

Naked-eye 3D display technology cannot provide continuous viewable locations due to the crosstalk phenomenon that occurs when the viewer is not at a specific location relative to the best viewing position, affecting the display quality.

Innovation Solution

A display panel with pixel repeat units consisting of staggered red, green, and blue monochromatic sub-pixels, and a grating structure with light-shielding patterns, combined with a method to determine grayscale voltages for each sub-pixel based on multiple shooting angles to ensure optimal image presentation at various viewing locations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a grating structure is used for naked-eye 3D display, then a stereoscopic effect can be generated, but continuous viewable locations cannot be provided due to crosstalk phenomenon

Engineering Contradiction:
Improve3D display qualityVSAvoidviewable locations
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The display panel is divided into multiple pixel repeat units, each containing three pixel units with different color sub-pixels (red, green, blue). Each pixel unit is further segmented into multiple sub-pixels arranged in a specific pattern. This segmentation allows different regions to display different color information that can be correctly viewed from multiple locations, eliminating crosstalk while providing continuous viewable locations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different pixel units within the same pixel repeat unit are assigned different color characteristics (red, green, blue sub-pixels). Each sub-pixel region is optimized to emit specific wavelengths of light, and the grating structure is designed with corresponding local optical properties to direct light from specific sub-pixel regions to specific viewing locations, ensuring high display quality across multiple positions.

Inventive Principle:
Principle #3Local quality

2Reliability

If a specific viewing location is fixed for optimal 3D effect, then crosstalk is minimized, but the device becomes limited in application scenarios

Engineering Contradiction:
Improveimage display qualityVSAvoidapplication flexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The display device is designed to function optimally across multiple viewing locations rather than a single fixed position. The pixel repeat unit structure combined with the grating pattern enables the same display to provide high-quality 3D images for viewers at various positions, making the device universally applicable in different scenarios without requiring precise positioning.

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

Solution Approach 2:

The invention transitions from a single-viewing-angle model to a multi-viewing-angle model by introducing spatial distribution of pixel units and corresponding grating patterns. The pixel repeat units are arranged in a two-dimensional pattern that corresponds to the grating structure, creating multiple optical paths that accommodate viewers in different positions, thus adding the dimension of viewing location flexibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10467970B2Display panel, display module, method for driving display module, driving device and display device
Publication Date: 2019.11.05 BOE TECHNOLOGY GROUP CO LTD
  • US10467970B2 patent drawing
  • US10467970B2 patent drawing
  • US10467970B2 patent drawing

AI summary

The present disclosure provides a display panel, a display module, a method for driving the display module, a driving device and a display device. The display panel includes a plurality of pixel repeat units, each of the pixel repeat units includes first monochromatic sub-pixels, second monochromatic sub-pixels and third monochromatic sub-pixels of different colors, each of the pixel repeat units includes three pixel units arranged in sequence in a row direction, each of the pixel unit includes two monochromatic sub-pixels in a first row and two monochromatic sub-pixels in a second row, the two monochromatic sub-pixels in the first row and the two monochromatic sub-pixels in the second row are staggered, and a color of each monochromatic sub-pixel is different from colors of adjacent monochromatic sub-pixels.