Curvature Changing Unit for Display Panel Bending
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Solution Overview
Problem
Existing curved display devices have complex structures with numerous components, high manufacturing costs, and increased power consumption due to motor-based curvature changes, which can lead to noise and maintenance issues.
Innovation Solution
A display device with a back cover and support members that utilize a curvature-changing unit to change the display panel's curvature between flat and curved modes, using a driven gear system to bend support members for easy mode switching without the need for motors, allowing for flexible curvature adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If motor-based curvature change devices are used, then curvature adjustment is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent removes the motor component from the curvature change device, extracting the complex electrical drive system and replacing it with a purely mechanical structure. The curvature adjustment is achieved through manual operation of a crank mechanism that rotates support members, eliminating the need for motors, control circuits, and power supply systems while maintaining the curvature adjustment function.
Solution Approach 2:
The curvature change device is designed to be manually operable without external power sources. Users directly operate the crank mechanism to rotate the support members and adjust the curvature of the display panel, making the system self-sufficient and eliminating dependency on motorized actuation systems.
2Ease of operation
If motor-based curvature change devices are used, then curvature adjustment is achieved, but power consumption increases
Solution Approach 1:
The device is designed to operate without external power sources by utilizing manual input from the user. The crank mechanism converts user-applied mechanical force directly into rotational motion of the support members, achieving curvature adjustment without consuming electrical energy.
Solution Approach 2:
The motor component that would consume electrical power is completely removed from the system. The curvature adjustment function is achieved through purely mechanical means, eliminating power consumption associated with motor operation, control electronics, and associated systems.
3Ease of operation
If motor-based curvature change devices are used, then curvature adjustment is achieved, but operational noise increases
Solution Approach 1:
The motor component that generates operational noise through electromagnetic forces, vibrations, and mechanical commutation is removed from the system. The manually-operated crank mechanism produces minimal noise, eliminating the harmful acoustic emissions associated with motorized curvature adjustment devices.
4Ease of operation
If multiple joint plates and motors are used, then curvature adjustment is achieved, but manufacturing cost increases
Solution Approach 1:
The patent removes motors and complex control systems from the curvature change device, significantly reducing component count and manufacturing complexity. The simplified mechanical structure requires fewer precision-manufactured parts, less assembly work, and eliminates expensive electronic components, thereby reducing manufacturing costs.
Solution Approach 2:
The patent integrates the curvature adjustment function directly into the support member structure, combining multiple functions into a unified mechanical system. This integration reduces the number of separate components needed and simplifies the manufacturing process.
5Ease of operation
If motors are installed in the external case, then curvature adjustment is achieved, but ease of repair decreases
Solution Approach 1:
The motor component that would require disassembly of the external case for repair or replacement is removed from the system. The manually-operated crank mechanism is designed as a simple mechanical structure that can be accessed and maintained without separating the external case from the display panel.
Data Source
AI summary
A display device. A back cover supports a rear surface of a display panel. A pair of support members are disposed on a left side and a right side of the back cover with respect to a central portion of the rear surface of the back cover. Outer ends of the pair of support members are fixed to the back cover. A curvature-changing unit is coupled to the central portion of the rear surface of the back cover to support the pair of support members in a lateral direction of the back cover and change a curvature of either the display panel or the back cover.