Liquid Crystal Display Plastic Frame Without Backboard
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Solution Overview
Problem
Existing liquid crystal display devices have manufacturing complexities and higher costs due to the need for a backboard, hanging holes, and additional frames, which also result in a thicker design that deviates from the slim trend.
Innovation Solution
A liquid crystal display device design without a backboard, featuring a plastic frame with stepped surfaces for the backlight and liquid crystal panel, using external bar-shaped holding components and a support frame with a protective cover for the PCB, allowing for easier assembly and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a backboard is provided with hanging holes and PCB for liquid crystal display, then the display can be hung on wall and connected electrically, but the manufacturing complexity increases and the device becomes thicker
Solution Approach 1:
The patent extracts the backboard from the liquid crystal display structure, moving the hanging holes to the bezel frame instead. This eliminates the need for a separate backboard component while preserving the hanging function, thereby reducing manufacturing complexity and device thickness.
Solution Approach 2:
The patent merges the hanging function from the backboard into the bezel frame structure. By integrating the hanging holes directly into the frame, the design combines multiple functions into a single component, reducing the overall number of parts and simplifying manufacturing.
2Reliability
If a backboard with PCB and multiple hanging holes is used, then the display can be assembled and hung, but the manufacturing cost increases
Solution Approach 1:
The patent removes the backboard component entirely from the assembly, extracting its functions and redistributing them to other components like the frame and mounting brackets. This reduction in component count directly lowers manufacturing costs while maintaining assembly stability through alternative structural arrangements.
Solution Approach 2:
The frame structure is designed to serve multiple functions: it provides structural support, houses the PCB, and incorporates hanging holes for wall mounting. This multi-functionality eliminates the need for a dedicated backboard, reducing material costs and simplifying the manufacturing process.
3Strength
If front frame, plastic frame and backboard are used for holding liquid crystal panel and backlight unit, then the components are securely held, but the manufacturing cost increases
Solution Approach 1:
The patent merges the functions of the front frame, plastic frame, and backboard into an integrated frame structure. This single frame component provides all necessary support and holding capabilities for the liquid crystal panel and backlight unit, eliminating the need for multiple separate frames and reducing manufacturing costs.
Solution Approach 2:
The patent extracts and eliminates redundant framing components, retaining only the essential frame structure needed for support. By removing unnecessary frames while maintaining structural integrity, the design reduces material costs and simplifies manufacturing without compromising component holding capability.
4Ease of manufacture
If a backboard is provided for liquid crystal display, then the display can be assembled, but the display thickness increases
Solution Approach 1:
The patent extracts the backboard from the display structure, removing the source of excessive thickness. By eliminating this component and redistributing its functions to thinner alternative structures like the frame and mounting brackets, the overall display thickness is reduced while maintaining assembly capability.
Solution Approach 2:
The patent relocates the hanging function from the thickness dimension (backboard) to the lateral dimension (bezel frame). By moving hanging holes to the frame's outer edge rather than requiring a thick backboard, the design achieves wall mounting capability without increasing display thickness.
Data Source
AI summary
Provided is a liquid crystal display device including: a base; a liquid crystal display including a plastic frame having a first supporting surface and a second supporting surface; a backlight unit disposed on the first supporting surface; a liquid crystal panel disposed on the second supporting surface; and a plurality of holding components disposed at outer sides of the plastic frame, respectively, for keeping the backlight unit, the plastic frame and the liquid crystal panel in their relative positions to each other; a support frame disposed between the base and the liquid crystal display; and a PCB electrically connected to the liquid crystal display through a wire, and being disposed at a vertical plane of the support frame.