LCD Frame Hook Assembly to Prevent Scratches and Ripple
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Solution Overview
Problem
The assembly of main and top frames in liquid crystal display modules is challenging, often resulting in scratches and particle generation, which can cause image distortion due to the contact between the frames during combination.
Innovation Solution
A hook assembly is used to connect the top frame to the main frame, where a first hook on the outer side surface of the main frame inserts into a second hook on the inner side surface of the top frame, creating a separation that prevents direct contact and potential scratches, thus allowing for easy assembly without altering the frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the top frame and main frame are directly combined during assembly, then the assembly process is simple, but the frames may scratch each other generating particles and causing image distortion
Solution Approach 1:
A separation space is introduced between the inner side surface of the top frame and the outer side surface of the main frame. This separation space acts as an intermediary that prevents direct contact between the frames during assembly, thereby eliminating scratching and particle generation while maintaining assembly simplicity.
2Volume of moving object
If the top frame is positioned close to the main frame, then the device structure is compact, but direct contact causes scratches and transformation of the frames
Solution Approach 1:
The separation space serves as a protective intermediary that maintains frame surface integrity. By positioning the frames such that their surfaces do not directly contact, the separation space prevents scratching and transformation while the hook assembly ensures structural stability.
Solution Approach 2:
The connection structure is segmented into distinct components: the hook assembly for mechanical connection and the separation space for protective isolation. This segmentation allows the frames to be connected securely while maintaining the protective gap that prevents surface damage.
3Productivity
If the frames are assembled without a separation space, then the assembly process is straightforward, but image distortion including ripple phenomenon occurs
Solution Approach 1:
The separation space acts as a protective intermediary that prevents frame contact and the resulting image distortion. This simple structural feature maintains assembly efficiency while ensuring image quality by preventing ripple phenomenon caused by frame transformation.
Data Source
AI summary
A liquid crystal display device includes a liquid crystal display panel, a backlight unit under the liquid crystal display panel, a bottom frame under the backlight unit, a main frame surrounding portions of the liquid crystal display panel and the backlight unit, and a top frame covering top edge portions of the liquid crystal display panel. The top frame is connected to the main frame so that an inner side surface of the top frame is separated from an outer side surface of the main frame.