Modular LCD Backplane with Equilong Frame Edge Members

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Solution Overview

Problem

Conventional LCD devices face high production costs and lengthy development cycles due to inconsistent backplane sizes requiring unique molds, which cannot be shared, leading to increased costs and prolonged manufacturing processes.

Innovation Solution

A modular, joining-type backplane design featuring a frame with equilong edge members, corner members, and a universal interface structure using convex lugs and grooves to ensure structural strength and facilitate assembly, allowing for standardized modular units that reduce the need for special molds and streamline production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional backplanes are manufactured with integrated punching and radium welding for each unique size, then the structural strength is ensured, but the production cost increases and development cycle lengthens due to requiring independent molds for each size

Engineering Contradiction:
Improvestructural strengthVSAvoiddevelopment cycle
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The backplane is divided into a frame component and a bottom plate component that can be manufactured separately and assembled together. The frame includes standardized edge members that can be reused across different backplane sizes, while only the bottom plate needs to be customized for each size requirement. This segmentation allows the frame to be produced using the same mold repeatedly, significantly reducing development cycles and costs for different backplane variants.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The frame edge members are designed with universal dimensions and features that can be used across multiple backplane sizes. The standardized frame structure serves as a common platform that can accommodate different bottom plate sizes, making the frame a universal component that reduces the need for multiple specialized molds and accelerates product development.

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

2Manufacturing precision

If conventional backplanes use integrated manufacturing with special molds for each size, then the manufacturing precision is maintained, but the production cost increases due to inability to share molds

Engineering Contradiction:
Improvemanufacturing precisionVSAvoidproduction cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

By separating the backplane into frame and bottom plate components, the frame can be manufactured once with a single mold and reused for multiple backplane sizes. Only the bottom plate requires size-specific manufacturing. This reduces the total number of molds needed, lowering tooling costs while maintaining precision through standardized frame components that can be consistently produced.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design allows the frame component to be recovered and reused across different backplane size variants. Instead of discarding the mold after producing one size, the same frame mold can be used repeatedly for different bottom plate sizes, recovering the investment in mold development and amortizing it across multiple product variants.

Inventive Principle:
Principle #34Discarding and recovering

3Stability of the object's composition

If conventional backplanes are manufactured as single integrated components, then the structural integrity is ensured, but the assembly process becomes complex and time-consuming

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly process
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The backplane is segmented into frame and bottom plate components that are assembled together through standardized connection features. The frame includes positioning structures such as convex lugs and grooves that guide and secure the bottom plate, ensuring proper alignment and structural integrity while simplifying the assembly process through modular construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The frame acts as an intermediary structure that connects and supports the bottom plate through standardized interface features. The positioning lugs and grooves serve as intermediary elements that facilitate precise alignment and secure attachment, reducing assembly complexity while maintaining the structural integrity of the complete backplane assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8749728B2Backplane and LCD device comprising backplane
Publication Date: 2014.06.10 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
  • US8749728B2 patent drawing
  • US8749728B2 patent drawing
  • US8749728B2 patent drawing

AI summary

The invention relates to the field of LCDs, and more particularly to a backplane and an LCD device including the backplane. The backplane includes a frame and a bottom plate; the frame is of a joining structure, and includes a plurality of frame edge members; the frame edge members are equilong. The backplane of the invention employs a modular design, the frame of the backplane is divided into a plurality of equilong frame edge member units, and the design is standardized. When the new products of LCD devices are developed, only frame edge members of different number are selected from the standardized modular units for combination and use. The members have a high generality, thereby reducing the development cost of special moulds, shortening the development cycle of products, avoiding the problem that a great deal of stagnant materials are inconveniently handled when developing a single device. Thus, the aim of reducing cost is achieved.