Cover Lens Compensation for Seamless Joint Display

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Solution Overview

Problem

Large display devices formed by joining multiple display panels suffer from reduced displaying quality due to visible borders between adjacent panels, which limits the seamless presentation of images.

Innovation Solution

The implementation of a compensation apparatus within a joint display device, utilizing a cover lens with a compensation portion and support portion that includes light guiding fibers, expands the image from the periphery display region into the non-display region, effectively minimizing the visibility of borders and enhancing the overall display area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple display panels are joined together to form a large display device, then the display area is increased, but the borders between adjacent panels become visible and reduce displaying quality

Engineering Contradiction:
Improvedisplay areaVSAvoiddisplaying quality
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

A cover lens is introduced as an intermediary component between adjacent display panels. The cover lens includes compensation portions that optically compensate for the border regions, making the borders less visible and improving the seamless presentation of images across the joint display area.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cover lens is designed with different regional functions: a main display region corresponding to the display area, and compensation portions corresponding to the border regions. Each region has optimized optical properties tailored to its specific function, with the compensation portions specifically designed to reduce border visibility.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the border between display panels is made narrower or less visible, then the displaying quality is improved, but the non-display regions cannot be effectively utilized

Engineering Contradiction:
Improvedisplaying qualityVSAvoideffective display area
Core Design Contradiction:
Manufacturing precisionVSArea of stationary object

Solution Approach 1:

The compensation portions extend the optical path from the periphery display region into the non-display region. By utilizing the vertical dimension and optical refraction through the cover lens, the effective display area is expanded beyond the physical display region of the panels.

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

Solution Approach 2:

The cover lens is pre-designed with compensation portions that proactively address the border visibility issue before it affects the display quality. The compensation portions are structurally integrated into the cover lens design, preventing border visibility problems rather than correcting them after they occur.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If an image is displayed on a screen larger than the physical display region, then the seamless presentation is improved, but the optical precision and image quality may be compromised

Engineering Contradiction:
Improveseamless presentationVSAvoidoptical precision
Core Design Contradiction:
Manufacturing precisionVSMeasurement precision

Solution Approach 1:

The cover lens is designed with specific optical parameters including refractive index, curvature radius, and thickness variations across different regions. These parameters are optimized to control light refraction and ensure that images displayed through the compensation portions maintain high optical precision while achieving seamless presentation across the joint display area.

Inventive Principle:
Principle #35Parameter changes

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 enhances the displaying quality by enlarging and expanding the image beyond the physical boundaries of the display panels, creating a seamless image presentation across the entire display area, thereby improving the visual experience without the limitations of physical panel boundaries.

Implementation Method 1

a cover lens with a compensation portion and support portion that includes light guiding fibers

Methodology Applied
Scientific EffectLight guiding: Optical Fibre

Data Source

PatentUS9477112B2Display device and joint display
Publication Date: 2016.10.25 HON HAI PRECISION INDUSTRY CO LTD
  • US9477112B2 patent drawing
  • US9477112B2 patent drawing
  • US9477112B2 patent drawing

AI summary

The present invention relates to a display device and a joint display. The display device includes a display panel and a cover lens. The display panel includes a main display region and an edge display region. The cover lens includes a transmission portion located on the main display region and compensation portion located on the edge display region. The compensation portion is configured to distribute the image of the edge display region to the outside of the edge display region away from the main display region. The compensation portion includes a light incident surface, a light emitting surface, and a light guiding channel. The light guiding channel extends from the light incident surface to the light emitting surface, and an area of the light emitting surface is greater than an area of the light incident surface.