Liquid Crystal Display Top Case Fastening Bent Portions
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Solution Overview
Problem
The existing liquid crystal display devices face inefficiencies in the assembly process due to difficulties in connecting cables and connectors from the control printed circuit board to the liquid crystal module, leading to delays and potential damage to printed circuit boards and connectors.
Innovation Solution
A liquid crystal display device with a top case featuring first and second fastening bent portions that secure source printed circuit boards in vertical and horizontal directions, preventing movement and facilitating easy connection of cables and connectors, and an opened region to expose connectors for easy insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the top case is made as a simple flat structure, then the device complexity is reduced, but the printed circuit boards can move freely causing connection difficulties and assembly inefficiency
Solution Approach 1:
The top case incorporates bent portions that can elastically deform during the cable insertion process, then return to their original shape to secure the connection. This dynamic flexibility allows the rigid case structure to adapt temporarily to the insertion action, resolving the contradiction between structural simplicity and ease of connection.
Solution Approach 2:
The top case is segmented into multiple functional regions including first bent portions for cable insertion, second bent portions for connector connection, and fastening portions for securing printed circuit boards. This segmentation allows each region to perform its specific function independently, improving ease of operation while maintaining overall structural integrity.
2Reliability
If the printed circuit boards are not fastened, then the device complexity is reduced, but the boards can move causing damage and assembly delays
Solution Approach 1:
The fastening portions of the top case automatically secure the printed circuit boards through elastic deformation and geometric interlocking, without requiring separate fastening mechanisms or additional components. The case structure itself provides the fastening function, eliminating the need for external fastening devices and reducing overall device complexity.
Solution Approach 2:
The bent portions of the top case use curved geometries to provide fastening force. The arc-shaped structures naturally apply continuous pressure on the printed circuit boards, ensuring reliable connection while maintaining a simple single-piece case design without mechanical fasteners.
3Ease of manufacture
If the top case has no opened regions, then the manufacturing precision requirements are reduced, but the connector connection becomes difficult
Solution Approach 1:
The opened regions are pre-formed in the top case structure at specific locations where connector connection is needed. This preliminary preparation of access paths allows connectors to be easily connected without requiring additional manufacturing steps or complex assembly operations, resolving the contradiction between manufacturing simplicity and operational ease.
Data Source
AI summary
The present invention relates to a liquid crystal display device. The liquid crystal display device includes a liquid crystal module having a top case, a bottom plate, a liquid crystal display panel in the top case and the bottom plate for displaying a picture, and a drive unit. The liquid crystal display device also includes a drive control unit for generating a control signal for controlling the drive unit and supplying the control signal to the drive unit of the liquid crystal module through at least one connector and cable. The top case of the liquid crystal module includes at least one first and second fastening bent portion for fastening at least one source printed circuit board in horizontal and vertical directions, respectively.