Integrated Backlight Unit for Mobile Terminal Display Modules
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Solution Overview
Problem
The existing display module with two layers of backlight requires a complex structure and high manufacturing costs due to the need for two independent light strips and connectors, complicating the manufacturing process.
Innovation Solution
A display module with a first backlight unit that includes a first section and a second section integrally formed on different layers, using a spacer to position them, allowing for time-sharing control and fill light effects while simplifying the structure and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two independent light strips and connectors are used for first and second backlight, then time-sharing control and fill light effect are achieved, but structure complexity and manufacturing complexity increase
Solution Approach 1:
The patent merges the first light strip and second light strip into a single integrated light strip structure. The light strip includes a first section and a second section that are connected through a connecting section, eliminating the need for two independent light strips and their respective connectors. This integration maintains the ability to independently control different backlight regions while reducing structural complexity.
Solution Approach 2:
The patent utilizes spatial arrangement by disposing the first section and second section on different layers. The first section is disposed on a first layer and the second section is disposed on a second layer, with a spacer maintaining the distance between layers. This dimensional separation allows independent control of different backlight regions while using a single integrated light strip.
2Adaptability or versatility
If two independent light strips and connectors are used for first and second backlight, then time-sharing control is achieved, but manufacturing process complexity increases
Solution Approach 1:
The patent combines multiple manufacturing operations into a single integrated light strip assembly process. Instead of separately manufacturing and assembling two independent light strips and two connectors, the integrated light strip is manufactured as a single component with built-in connecting sections, significantly simplifying the manufacturing process and reducing assembly steps.
3Illumination intensity
If two independent light strips and connectors are used for first and second backlight, then fill light effect is achieved, but cost increases
Solution Approach 1:
The patent integrates multiple functional sections into a single light strip structure. The first section, second section, and connecting section are all part of one integrated light strip, eliminating the need for separate connectors and reducing the total number of components. This reduction in component count directly lowers material costs and assembly costs while maintaining the fill light effect through proper optical design.
Data Source
AI summary
A display module, a manufacturing method thereof, and a mobile terminal are disclosed. The display module has a functional display area and a main display area and includes a display panel and a backlight module. The backlight module includes a first backlight unit corresponding to the functional display area, and the first backlight unit includes a first section, a second section disposed around the first section, and a spacer disposed between the first section and the second section. The first section and the second section are integrally formed and on different layers.