LED Boards in LCD Peripheral Regions for Narrow Bezel Walls

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Solution Overview

Problem

Current television wall displays face issues with wider bezels and higher costs due to the need for multiple displays and circuit boards, which affect overall display quality and efficiency.

Innovation Solution

The integration of a liquid crystal display with light-emitting diode boards and a flexible circuit board, where the light-emitting diode boards are positioned in the peripheral region of the liquid crystal display, reducing the number of required components and bezel width, thereby improving display quality and reducing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple liquid crystal displays are tiled to form a television wall, then the display area is increased, but the bezel width near the junction place becomes wider and costs increase

Engineering Contradiction:
Improvedisplay areaVSAvoidbezel width
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The invention segments the display system into two distinct functional modules: a liquid crystal display module for the central display area and light-emitting diode board modules for the peripheral and junction areas. This segmentation allows each module to be optimized independently, with the LED boards specifically designed to fill the bezel regions between LCD units, thereby reducing the visible bezel width at junctions while maintaining the overall display area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention merges the liquid crystal display modules with light-emitting diode board modules into a unified display wall system. The LED boards are positioned to overlap the peripheral regions of the LCD modules in the normal direction, creating a seamless integrated structure that eliminates the traditional bezel gaps between separate display units and reduces overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Area of stationary object

If multiple liquid crystal displays are tiled to form a television wall, then the display area is increased, but the costs increase

Engineering Contradiction:
Improvedisplay areaVSAvoidquantity of components
Core Design Contradiction:
Area of stationary objectVSQuantity of substance

Solution Approach 1:

The light-emitting diode boards serve multiple functions within the display system: they provide display content in the peripheral regions, fill the bezel gaps between LCD modules, and contribute to the overall image rendering. This multi-functionality reduces the need for separate bezel components and additional structural elements, thereby reducing the total quantity of components required while achieving the desired large display area.

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

3Device complexity

If light-emitting diode boards are disposed in the peripheral region of the liquid crystal display, then the bezel width is reduced, but the quantity of light-emitting diode boards increases

Engineering Contradiction:
Improvebezel widthVSAvoidquantity of light-emitting diode boards
Core Design Contradiction:
Device complexityVSQuantity of substance

Solution Approach 1:

The invention applies local quality by positioning light-emitting diode boards specifically in the peripheral regions where they are most needed to reduce bezel visibility. The LED boards are strategically placed to overlap the peripheral regions of the LCD modules, providing localized bezel reduction exactly where it impacts the visual appearance, rather than uniformly increasing LED content across the entire display area.

Inventive Principle:
Principle #3Local quality

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 configuration reduces the quantity of light-emitting diode boards and circuit boards needed, lowering costs and minimizing bezel width, thus enhancing the display quality by effectively utilizing the light-emitting diode boards to provide images in the peripheral region.

Implementation Method 1

The plurality of light-emitting diodes are disposed on the first surface

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Data Source

PatentUS11112636B2Display device
Publication Date: 2021.09.07 INNOLUX CORP
  • US11112636B2 patent drawing
  • US11112636B2 patent drawing
  • US11112636B2 patent drawing

AI summary

A display device including a liquid crystal display, light-emitting diode boards, a system board, and a flexible circuit board is provided. The plurality of light-emitting diode boards are disposed adjacent to the liquid crystal display and overlaps a peripheral region of the liquid crystal display in a normal direction of the display device. At least one of the light-emitting diode boards includes a carrier, light-emitting diodes, and connecting pads. The carrier has a first surface and a second surface opposite to the first surface and located between the first surface and the liquid crystal display. The light-emitting diodes are disposed on the first surface. The connecting pads are disposed on the second surface and are electrically connected to the light-emitting diodes. The system board is located below and electrically connected to the liquid crystal display. The system board is electrically connected to the connecting pads through the flexible circuit board.