Light source assembly, backlight module and display device

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Solution Overview

Problem

Transparent splicing display devices face issues with uneven brightness and interference with viewing due to the placement of light sources at the periphery, which limits their effectiveness and design flexibility, especially in achieving narrow-bezel designs and sufficient brightness.

Innovation Solution

A light source assembly with adjustable light-emitting directions, comprising a base with luminous elements and a light slot with multiple fixing parts, allowing for flexible positioning and orientation of the light source to optimize illumination and reduce peripheral interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If light sources are placed at the periphery of transparent splicing display devices, then the display can be illuminated, but the viewing is interfered with and brightness becomes uneven

Engineering Contradiction:
Improvebrightness distributionVSAvoidviewing interference
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the light source from the peripheral position and relocates it to the backplane, separating the illumination function from the viewing area. This allows the light source to be hidden behind the transparent display surface, eliminating viewing interference while maintaining illumination effectiveness.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions the light source placement from a two-dimensional peripheral arrangement to a three-dimensional backend configuration. By moving the light source to the backplane and using adjustable light-emitting directions, the system achieves uniform illumination without occupying peripheral viewing space.

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

2Adaptability or versatility

If light sources are placed at the periphery, then illumination is provided, but design flexibility and adaptability to different device sizes are limited

Engineering Contradiction:
Improvedesign flexibilityVSAvoidintegration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal light source assembly that can be adapted to transparent splicing devices of various sizes. The standardized backplane design with adjustable light-emitting directions allows the same assembly to serve multiple device configurations, enhancing design flexibility and reducing integration complexity.

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

Solution Approach 2:

The patent introduces adjustable light-emitting directions that can be dynamically configured to match different device requirements. This dynamic adjustability allows the illumination system to adapt to various screen sizes and geometries without requiring custom-designed light source assemblies for each configuration.

Inventive Principle:
Principle #15Dynamics

3Illumination intensity

If multiple light sources are added to achieve sufficient brightness, then illumination intensity increases, but peripheral interference with viewing worsens

Engineering Contradiction:
ImprovebrightnessVSAvoidviewing interference
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

Instead of adding more light sources in the peripheral plane, the patent utilizes the third dimension by positioning multiple light sources on the backplane with different emission angles. This spatial reconfiguration allows multiple light sources to contribute to brightness without creating peripheral viewing interference.

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

Solution Approach 2:

The patent assigns different light-emitting directions to different light sources based on their positions on the backplane. Each light source is optimized to illuminate specific areas, creating uniform overall brightness while maintaining a clean peripheral viewing 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

The adjustable light source assembly enhances display quality by improving illumination distribution, reduces development costs, and simplifies the integration with various transparent splicing device sizes, thereby shortening the development period and avoiding peripheral light source interference.

Implementation Method 1

the luminous element includes a light-emitting diode (LED)

Methodology Applied
Scientific EffectLight-emitting diode (LED): Light Emitting Diode

Implementation Method 2

each of the fixing parts and the base of the light source are fixed through a clamping mode

Methodology Applied
Scientific EffectClamping: Mechanical Fastener

Data Source

PatentUS10738978B2Light source assembly, backlight module and display device
Publication Date: 2020.08.11 BOE TECHNOLOGY GROUP CO LTD
  • US10738978B2 patent drawing
  • US10738978B2 patent drawing
  • US10738978B2 patent drawing

AI summary

Disclosure are a light source assembly, a backlight module and a display device. The light source assembly includes a light source including a base and at least one luminous element disposed on the base; and a light slot including a plurality of fixing parts, the light source is disposed in the light slot and fixed at one of the fixing parts through the base; and the light source has different light-emitting directions upon being fixed at different ones of the plurality of fixing parts. The light source assembly can adjust the light-emitting direction of the light source, has a simple structure, and is convenient to operate.