Light Guide Component for Seamless Spliced Display Panels

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Solution Overview

Problem

Large-size flat-panel display devices require splicing multiple panels, which creates seams that negatively impact the viewing experience due to dark regions caused by non-light-emitting areas between panels.

Innovation Solution

A light guide component with an upper and lower portion, featuring a light-emission surface, refraction surface, light incident surface, and reflection surface, is designed to refract and reflect light in a way that eliminates the visibility of splicing seams by ensuring light is emitted across the seam area, improving the display's uniformity and visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple display panels are spliced together to form a larger display, then the display size is increased, but splicing seams appear between adjacent panels causing dark regions

Engineering Contradiction:
Improvedisplay sizeVSAvoidsplicing seam visibility
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

A light guide component is introduced as an intermediary element between adjacent display panels. This component receives light from light-emitting areas of the panels and redirects it toward splicing seam regions, effectively mediating the light distribution to eliminate dark seams without requiring modification to the display panels themselves

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The light guide component creates local light emission specifically at splicing seam regions while maintaining normal operation of the display panels. By concentrating optical energy where needed (at the seams) rather than uniformly across the entire display, the solution addresses the local problem of dark regions without affecting overall display performance

Inventive Principle:
Principle #3Local quality

2Productivity

If the size of a single display panel is increased, then fewer panels are needed, but production and transportation costs increase

Engineering Contradiction:
Improveproduction efficiencyVSAvoidtransportation cost
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The display system is segmented into multiple manageable panels that can be produced and transported separately, then assembled into a larger display configuration. The light guide component enables these segmented panels to work together seamlessly, achieving the benefits of modular production while maintaining the appearance of a large continuous display

Inventive Principle:
Principle #1Segmentation

3Object-affected harmful factors

If a light guide component is added to eliminate splicing seams, then viewing experience is improved, but device complexity increases

Engineering Contradiction:
Improvesplicing seam visibilityVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The light guide component serves multiple functions: it redirects light to eliminate splicing seams, maintains uniform light distribution across the display, and can be integrated with existing display panel structures. This multi-functionality reduces the need for additional separate components to address related issues

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

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

The light guide component effectively eliminates the dark seams between spliced display panels, enhancing the viewing experience by ensuring consistent light emission and improved display quality across the entire panel surface.

Implementation Method 1

refracted by the refraction surface and emitted out of the light guide component

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

reflected to one of the refraction surface and the light-emission surface by the reflection surface

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS20240069377A1Light guide component, display device, and method for manufacturing display device
Publication Date: 2024.02.29 BEIJING BOE DISPLAY TECH CO LTD
  • US20240069377A1 patent drawing
  • US20240069377A1 patent drawing
  • US20240069377A1 patent drawing

AI summary

A light guide component, a display device, a method for manufacturing the display device are provided. The light guide component includes an upper light guide portion including a light-emission surface and a refraction surface, and a lower light guide portion including a light incident surface and a reflection surface. The light guide component is configured to: allow a first deflected light entering the light incident surface to be projected onto one of the refraction surface and the light-emission surface, refracted by one of the refraction surface and the light-emission surface and emitted out of the light guide component; and allow a second deflected light entering the light incident surface to be projected onto the reflection surface, reflected to one of the refraction surface and the light-emission surface by the reflection surface, refracted by one of the refraction surface and the light-emission surface and emitted out of the light guide component.