Backlight Casing Overlap Reduces Dead Border Area

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Solution Overview

Problem

Current display modules face challenges in reducing the dead border area, which affects the outline size, as minimizing component sizes can compromise rigidity and machining processes, making it difficult to meet user demands for smaller display modules while maintaining screen size.

Innovation Solution

A backlight structure with a casing that overlaps part of the backlight unit, featuring a base and support portion, reduces the dead border area by covering the edges of the backlight unit and preventing optical artifacts, while also enhancing the module's strength and rigidity through the use of materials like metal frames.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If component sizes are reduced to narrow the dead border, then the outline size of the display module is reduced, but the rigidity and strength of the display module deteriorates

Engineering Contradiction:

Improvedead border areaVSAvoidrigidity and strength

Core Design Contradiction:

Area of stationary objectVSStrength

Solution Approach 1:

The support portion is integrated with the base portion to form a unified casing structure. The support portion extends from the base portion and overlaps with the backlight unit, creating a combined structure that provides both support functionality and structural strength, thereby reducing the dead border without compromising rigidity

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support portion extends in a direction overlapping with the backlight unit, utilizing spatial arrangement to reduce the dead border area. By positioning the support portion to overlap with the backlight unit rather than simply surrounding it, the design reduces the outline size while maintaining structural integrity through three-dimensional configuration

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If component sizes are reduced to narrow the dead border, then the outline size of the display module is reduced, but the machining process becomes more difficult

Engineering Contradiction:

Improvedead border areaVSAvoidmachining process

Core Design Contradiction:

Area of stationary objectVSEase of manufacture

Solution Approach 1:

The casing is divided into a base portion and a support portion that can be separately formed and then assembled. The base portion surrounds the backlight unit while the support portion extends to overlap with the backlight unit. This segmentation allows each portion to be manufactured using standard machining processes and then assembled together, maintaining ease of manufacture while achieving the desired compact size

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base portion and support portion are formed as separate components and then assembled into a unified casing structure. This approach allows each component to be manufactured using conventional machining techniques and then joined together, maintaining manufacturing feasibility while achieving the reduced dead border design

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9606386B2Backlight structure and display module using the same

Publication Date: 2017.03.28 INNOLUX CORP

AI summary

A backlight structure is provided. The backlight structure includes a backlight unit and a casing. The backlight unit configured to provide light to a display panel. The casing has a base portion and a support portion. The base portion surrounds the backlight unit. The support portion is connected to the base portion, and overlaps with part of the backlight unit. The support portion is for supporting the display panel thereon.