Slim Bezel Display Device with Integrated Backlight Assembly

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Solution Overview

Problem

Existing display devices with slim bezels face challenges in achieving uniform gaps between the bezel and display panel due to assembly tolerance accumulation, affecting visual experience and aesthetics.

Innovation Solution

A display device configuration featuring a backlight module, rear casing, and outer bezel frame with specific fixing portions and adhesive components to ensure uniform gap control and reduced thickness, allowing for easier assembly and reduced component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional assembly methods are used with multiple components, then component count and assembly complexity increase, but gap uniformity and manufacturing precision improve

Engineering Contradiction:
Improvegap uniformityVSAvoidassembly complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the backlight module, middle frame, and outer frame into a single integrated backlight assembly. The backlight module directly integrates the light emitting assembly with the back plate, eliminating the need for separate middle frames and multiple fixing operations. This integration maintains gap uniformity through precise molding while significantly reducing assembly complexity and component count.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The backlight module serves multiple functions simultaneously: it provides light emission, structural support, and gap control. The back plate of the backlight module functions as both the structural base for light emission and the reference surface for controlling the gap with the display panel, eliminating the need for separate components for each function.

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

2Manufacturing precision

If traditional multi-component structure is used, then assembly steps increase, but structural stability and gap control improve

Engineering Contradiction:
Improvegap controlVSAvoidassembly efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent combines multiple components (backlight module, middle frame, outer frame) into a single integrated backlight assembly that directly mounts to the display panel. This integration maintains precise gap control through the molded back plate structure while reducing assembly to a single mounting operation, thereby improving productivity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The gap control features are pre-formed during the molding of the backlight module back plate, rather than requiring separate adjustment or assembly steps. The back plate is molded with precise dimensions and integrated fixing structures that inherently maintain the required gap, eliminating the need for subsequent alignment or adjustment operations.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If more fixing portions and components are used, then assembly ease improves, but device thickness increases

Engineering Contradiction:
Improveassembly easeVSAvoiddevice thickness
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The patent integrates multiple fixing functions into a single backlight module structure. The back plate incorporates integrated fixing structures that provide stable mounting without requiring additional separate fixing components. This integration maintains assembly ease through the unified structure while avoiding the thickness increase that would result from stacking multiple separate fixing components.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10627855B2Display device with thin thickness and slim bezel and outer bezel frame thereof
Publication Date: 2020.04.21 WISTRON CORP
  • US10627855B2 patent drawing
  • US10627855B2 patent drawing
  • US10627855B2 patent drawing

AI summary

A display device includes a backlight module, a rear casing, an outer bezel frame, and a panel module. The backlight module includes a back plate and a light emitting assembly disposed on the back plate for emitting light. The rear casing covers the backlight module. The outer bezel frame includes a bezel body, a first fixing portion and a second fixing portion. The first fixing portion and the second fixing portion are disposed on a rear side of the bezel body and spaced apart from each other in a lateral direction. The second fixing portion is located at a side of the first fixing portion away from the backlight module. The first fixing portion and the second fixing portion are respectively fixed to the back plate and the rear casing in the lateral direction. The panel module is fixed on a front side of the bezel body for displaying images.