Watch Display Circuit Board Region-Based Component Spacing
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Solution Overview
Problem
Conventional display devices in watches face challenges with electronic components interfering with the light guide plate and housing due to deformation from external forces, leading to potential damage and inefficient mounting.
Innovation Solution
The display device is designed with a circuit board having distinct regions for electronic components, where the first region has the shortest distance between components and the light guide plate, the second region has a greater distance, and the third region has an even greater distance, allowing for improved impact resistance and higher-density mounting by minimizing interference with the light guide plate and housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic components are arranged densely on the circuit board to improve mounting efficiency, then productivity increases, but the risk of interference with the light guide plate during deformation increases
Solution Approach 1:
The circuit board is divided into a first region (central mounting region) and a second region (outer peripheral mounting region), with different component arrangement strategies for each region to balance mounting efficiency and interference prevention
Solution Approach 2:
Different regions of the circuit board have different component arrangement characteristics - the first region has components with greater distances from the light guide plate while the second region has components with shorter distances, optimizing each region for its specific function
2Area of stationary object
If electronic components are positioned closer to the light guide plate to maximize mounting area, then the area utilization improves, but impact resistance deteriorates due to potential interference during deformation
Solution Approach 1:
The mounting area is segmented into two regions with different distance requirements from the light guide plate, allowing both high area utilization and adequate impact protection
Solution Approach 2:
The distance parameter between electronic components and the light guide plate is varied by region - greater in the first region for impact resistance, smaller in the second region for area utilization
Data Source
AI summary
A display device includes: a case; a circuit board having electronic components; and a member, in which the electronic components include a first electronic component and a second electronic component, a distance between an end surface of the first electronic component and the member being shortest among one or more of the electronic components arranged in the first region, a distance between an end surface of the second electronic component and the member being shortest among one or more of the electronic components arranged in the second region, the electronic components being arranged in such a manner that the distance between the end surface of the first electronic component and the member is greater than the distance between the end surface of the second electronic component and the member.