Display Device Support Pin Positioning for Uniform Illumination
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Solution Overview
Problem
Existing display devices have limited flexibility in positioning support members due to their fixed locations through through-holes in the mounting substrate, which restricts the arrangement of light sources and can lead to luminance unevenness and shadow issues.
Innovation Solution
A display device design that includes a diffuser plate, light sources, a mounting substrate, and support members with a securing pin, support pin, and coupling portion, allowing for adjustable positioning of the support pin between the diffuser plate and chassis, enhancing the degree of freedom in support member placement and reducing shadow effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If support pins are disposed through through-holes in the mounting substrate, then the support pins can be securely fixed, but the positions of the support pins are limited to the positions of the through-holes
Solution Approach 1:
The support pin is divided into two separate parts: a securing pin that fits into a hole in the mounting substrate, and a support pin that contacts the diffuser plate. These two parts are connected through a coupling portion that extends in the plane direction of the mounting substrate. This segmentation allows the support pin to be positioned at locations not limited by through-hole positions, while still maintaining secure fixation through the securing pin.
2Ease of manufacture
If support pins are fixed at specific positions through through-holes, then assembly is simplified, but luminance unevenness and shadow issues occur
Solution Approach 1:
The support pin is designed to be adjustable in position along the coupling portion, allowing it to be dynamically positioned to optimize light distribution. The coupling portion extends in the plane direction of the mounting substrate, enabling the support pin to be located at different positions to avoid shadow effects and ensure uniform illumination, while maintaining simple assembly through the securing pin mechanism.
Data Source
AI summary
A display device includes a diffuser plate, a plurality of light sources that irradiates the diffuser plate with light, a mounting substrate on which the plurality of light sources is mounted, a chassis to which the mounting substrate is secured, and a support member that is disposed between the chassis and the diffuser plate and that supports the diffuser plate. The support member includes a securing pin that is fitted in a hole that is formed in the mounting substrate, a support pin that is located between the diffuser plate and the chassis, and a coupling portion that extends in a plane direction of the mounting substrate and that couples the securing pin and the support pin with each other.