3D Display Panel Buffer Zone Adjustment for Brightness

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Solution Overview

Problem

In 3D display techniques, the buffer zone being in an OFF state leads to decreased brightness and color cast issues due to non-emitting light areas, which are not fully utilized for image display.

Innovation Solution

A 3D display panel with a grating and an adjusting unit that determines the distance of viewer movement to adjust the buffer zone, turning on corresponding subpixels to compensate for shielded areas, ensuring all subpixels contribute to the image without visible buffer zones.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the buffer zone is set in an OFF state to fit user movement, then the comfort level of 3D watching is improved, but the brightness of the image viewed by the user is decreased

Engineering Contradiction:
Improvecomfort level of 3D watchingVSAvoidbrightness of the image
Core Design Contradiction:
Ease of operationVSIllumination intensity

Solution Approach 1:

The buffer zone's light emission state is dynamically adjusted based on the user's viewing position. When the user is at the initial position, the buffer zone is OFF to avoid visibility. When the user moves to a particular angle causing shielded subpixels, the buffer zone is turned ON to compensate for the shielded areas, thereby maintaining image brightness while preserving 3D comfort.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the buffer zone is set in an OFF state, then the 3D viewing comfort is improved, but color cast problems occur due to non-emitting light areas

Engineering Contradiction:
Improve3D viewing comfortVSAvoidcolor cast
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The buffer zone transitions from a static OFF state to a dynamically controlled state. The adjusting unit detects user position and activates the buffer zone only when necessary (when subpixels are shielded), ensuring color accuracy is maintained only when needed, while preserving viewing comfort in normal conditions.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the aperture of the grating is fixed, then the device structure is simplified, but the user cannot see the whole image of all subpixels when the buffer zone is OFF

Engineering Contradiction:
Improvegrating aperture structureVSAvoidimage completeness
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

While the grating aperture remains fixed (maintaining structural simplicity), the buffer zone's light emission state is dynamically adjusted. This allows the system to compensate for shielded subpixels by activating the buffer zone, ensuring complete image visibility without modifying the grating structure.

Inventive Principle:
Principle #15Dynamics

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 solution maintains image brightness and avoids color cast by utilizing all subpixels for image display, regardless of viewer position, enhancing the 3D viewing experience.

Implementation Method 1

a grating, comprising a plurality of aperture areas and a plurality of shielding areas, which are configured to allow images of one part of subpixels in the lower substrate to enter a left eye of a viewer, and allow images of the other part of subpixels in the lower substrate to enter a right eye of a viewer

Methodology Applied
Scientific EffectLight blocking and transmitting: Filter (optical)

Data Source

PatentEP3336599B13D display panel, 3D display method and display device
Publication Date: 2022.06.15 BOE TECHNOLOGY GROUP CO LTD
  • EP3336599B1 patent drawingFigure 1~2
  • EP3336599B1 patent drawingFigure 3~4
  • EP3336599B1 patent drawingFigure 5a~6

AI summary

The present disclosure relates to a 3D display panel, including a lower substrate comprising a plurality columns of subpixels in which preset columns of subpixels serve as a buffer zone; a grating configured to allow images of one part of subpixels in the lower substrate to enter a left eye of a viewer, and allow images of the other part of subpixels in the lower substrate to enter a right eye of the viewer; a positioning unit configured to determine a first distance which the viewer moves, and determine whether any subpixel of non-buffer zone is shielded by the grating according to the first distance; and an adjusting unit configured to adjust the buffer zone when the any subpixel of non-buffer zone is shielded by the grating. The present disclosure adjusts the buffer zone according to the area and color of the shielded subpixels, such that the user will not see the buffer zone in the image, which ensures that all subpixels in the image seen by the user are used to display the image, and avoids the decrease of brightness or the occurrence of color cast in the image when the buffer zone is seen by the user.