Segmented Display Substrate Layout for Local Dimming Blocks
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Solution Overview
Problem
Existing display devices face challenges in achieving excellent image quality, high substrate manufacturing costs, and inefficient substrate chamfering processes, particularly in implementing various types of local dimming blocks.
Innovation Solution
A display device design featuring a substrate structure with elongated first and second substrates intersecting at a third plate, coupled to a frame, and incorporating reflective sheets with holes for light sources, allowing for efficient light distribution and local dimming capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional substrate structure is used, then manufacturing costs are high, but image quality and local dimming capability are insufficient
Solution Approach 1:
The substrate is divided into multiple separate plates (first plate, second plate, third plate) that are electrically connected. This segmentation allows each plate to be manufactured independently and then assembled, reducing overall manufacturing complexity and cost while enabling precise control over the substrate structure for improved image quality and local dimming performance
Solution Approach 2:
The substrate structure incorporates local variations in plate arrangement and electrical connection to create different functional zones. The first, second, and third plates are positioned and connected in specific patterns that optimize local regions for different purposes (light emission, electrical connection, structural support), thereby improving overall image quality while maintaining cost-effectiveness
2Productivity
If traditional substrate design is used, then manufacturing is simple, but chamfering efficiency is low
Solution Approach 1:
By segmenting the substrate into multiple plates with defined connection points, the chamfering process can be optimized for each segment independently. The segmented structure provides clearer manufacturing boundaries that improve chamfering efficiency while the electrical connection between plates maintains structural integrity without significantly increasing overall complexity
3Adaptability or versatility
If simple substrate structure is used, then manufacturing cost is reduced, but local dimming capability is limited
Solution Approach 1:
The multi-plate substrate structure enables different local regions to have different electrical connection characteristics and optical properties. The first, second, and third plates can be configured to support different types of light sources and electrical connections, allowing implementation of various local dimming blocks while maintaining a relatively simple overall manufacturing process
Solution Approach 2:
The substrate structure with multiple electrically connected plates serves multiple functions simultaneously: it provides structural support, enables electrical connections for different light sources, and facilitates local dimming control. This multi-functionality allows the substrate to adapt to different local dimming configurations without requiring completely different substrate designs for each application
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 design enhances image quality, reduces substrate manufacturing costs, and increases chamfering efficiency while enabling various types of local dimming blocks for improved brightness control.
Implementation Method 1
a reflective sheet disposed on the substrate and having a hole through which the light source passes
Data Source
AI summary
A display device is disclosed. The display device according to the present disclosure may comprise: a display panel; a frame coupled to the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; a light source mounted on the substrate; and a reflective sheet positioned on the substrate and including a hole through which light from the light source passes. The substrate may comprise: a first substrate extending to be long; and a second substrate electrically connected to the first substrate. The second substrate may comprise: a first plate extending in a direction crossing a longitudinal direction of the first substrate; a second plate extending in the longitudinal direction of the first plate and spaced apart from the first plate in the longitudinal direction of the first substrate; and a third plate connecting the first plate with the second plate and electrically connected to the first substrate.