Special-Shaped Display Screen Groove Staged Material Reduction
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Solution Overview
Problem
Cutting precision and yield rate are compromised due to the difficulty in processing special-shaped display screens with narrow frames, particularly in forming accommodating grooves with curved surfaces, which leads to stress concentration and processing challenges.
Innovation Solution
A staged material-reduction processing method where a first arcuate transition surface with a larger curvature radius is formed initially, followed by a second arcuate transition surface with a smaller curvature radius, using a combination of cutting and grinding processes to reduce equipment requirements and processing difficulty, and enhance precision and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a small curvature radius arcuate transition surface is directly formed via one-time material-reduction processing, then the final groove shape is achieved, but the processing difficulty increases and cutting precision decreases
Solution Approach 1:
The patent divides the groove formation process into two separate stages: first forming a mounting groove with a larger curvature radius transition surface, then forming the final groove with the smaller curvature radius transition surface. This segmentation allows each stage to use optimized processing parameters, avoiding the difficulty of directly creating a small curvature radius in one step.
Solution Approach 2:
The patent performs a preliminary action by first creating the mounting groove with the larger curvature radius transition surface before forming the final groove. This preliminary groove serves as a precursor that reduces the material removal burden in the second stage, making the final small curvature radius formation easier and more precise.
2Manufacturing precision
If advanced processing equipment is used to directly form small curvature radius arcuate surfaces, then processing precision is maintained, but equipment requirements and costs increase
Solution Approach 1:
The patent segments the groove formation into two stages with different curvature radii, allowing each stage to use simpler, more common processing equipment rather than requiring advanced equipment capable of directly creating small curvature radius surfaces in one step.
Solution Approach 2:
The patent changes the curvature radius parameter between stages: the first stage uses a larger curvature radius that is easier to process with standard equipment, while the second stage forms the final smaller curvature radius. This parameter change allows the use of more accessible equipment while maintaining final precision.
3Ease of manufacture
If multiple processing stages are used to form grooves with different curvature radii, then processing difficulty and equipment requirements are reduced, but the number of processing steps increases
Solution Approach 1:
The patent merges the formation of different curvature radius transition surfaces into a coordinated two-stage process where the mounting groove formation and the final groove formation are sequentially combined. This approach balances the increased number of steps with reduced processing difficulty at each stage, achieving an optimal trade-off.
Data Source
AI summary
The present disclosure relates to a method of manufacturing a display screen and a special-shaped display screen. The method of manufacturing the display screen includes the following steps: processing the display screen by a material-reduction process to form the display screen with a first mounting groove; and processing the first mounting groove by a material-reduction process to form a second mounting groove. The display screen includes opposite disposed upper and lower surfaces, the first mounting groove and the second mounting groove extend through the upper surface and the lower surface, and a curvature radius of an orthographic projection of the second arcuate transition surface on a plane.