Outer Back Plate Protrusion for Ultra-Thin Display Stability
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Solution Overview
Problem
Current LCD display devices face challenges in achieving ultra-small thickness and narrow frames while maintaining structural stability and aesthetic appeal, as existing designs struggle to effectively position and fix the display panel and backlight module.
Innovation Solution
The design incorporates an outer back plate with specific protruding surfaces and connecting portions, a receiving groove, and a back plate assembly that includes a glass and metal combination, along with a shaft member and connecting mechanism, to provide structural support and stability while minimizing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the display device is designed with ultra-small thickness, then the aesthetic appeal and modern design requirements are met, but the structural stability and positioning capability deteriorate
Solution Approach 1:
The back plate is divided into multiple functional regions: a first back plate with a first supporting surface for the display panel, a second back plate with a second supporting surface for the backlight module, and connecting portions with protruding structures. This segmentation allows each region to be optimized independently for its specific function while maintaining overall structural integrity in the ultra-thin design.
Solution Approach 2:
The patent introduces connecting portions with protruding structures that extend in the thickness direction, creating a multi-level structure. The orthographic projection of the first protruding surface is located between the projections of the first and second supporting surfaces, effectively utilizing the thickness dimension to provide structural support without increasing the overall footprint area.
2Area of stationary object
If the frame is designed to be narrow, then the aesthetic appeal and screen-to-body ratio are improved, but the positioning and fixing capability of the display panel and backlight module deteriorates
Solution Approach 1:
The back plate design incorporates localized supporting surfaces and connecting portions with protruding structures at specific positions. The first supporting surface is configured to support the display panel, while the second supporting surface supports the backlight module. These localized structural features provide precise positioning and reliable fixing capability without requiring a large overall frame area.
3Device complexity
If the structure is simplified to reduce thickness, then the manufacturing cost and complexity are reduced, but the mechanical strength and stability deteriorate
Solution Approach 1:
The patent combines multiple functions into the back plate structure: supporting surfaces for positioning the display panel and backlight module, connecting portions with protruding structures for mechanical connection, and integrated structural reinforcement. This merging of functions into a unified structure provides the necessary mechanical strength while maintaining relatively simple manufacturing processes.
Data Source
AI summary
An outer back plate, a back assembly and a display device are provided. The outer back plate includes: a first supporting surface and a second supporting surface on a first side of the outer back plate; a back surface on a second side of the outer back plate; and a first connecting portion on the first side, wherein the first connecting portion includes a first protruding portion protruding in a direction away from the back surface of the outer back plate with respect to the first supporting surface and the second supporting surface to form a first protruding surface, and an orthographic projection of the first protruding surface in a direction perpendicular to the back surface of the outer back plate is located between an orthographic projection of the first supporting surface in the direction and an orthographic projection of the second supporting surface in the direction.