Display Panel Inspection Jig with Peripheral Light-Blocking Barriers
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Solution Overview
Problem
The challenge is to create an inspection environment for display panels with light sensors that minimizes the influence of external light, as existing methods require a darkroom setting which is difficult to maintain during the inspection of fingerprint sensors in electronic devices.
Innovation Solution
A display panel inspection jig with a stage and barriers that block external light, featuring a seating area with an opening and peripheral barriers to prevent light from reaching the fingerprint sensor, creating a controlled environment similar to a darkroom without the need for a separate darkroom setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a darkroom setting is used to minimize external light influence, then measurement precision is improved, but device complexity and ease of operation deteriorate due to requiring separate darkroom facilities
Solution Approach 1:
The patent combines the light-shielding function previously requiring a separate darkroom facility into the inspection jig itself. The jig includes a stage with peripheral areas that surround the seating area, creating an integrated light-blocking structure that eliminates the need for external darkroom facilities while maintaining inspection accuracy.
Solution Approach 2:
The patent introduces a barrier as an intermediary element between the external light environment and the display panel under inspection. The barrier is disposed in the peripheral area of the stage and blocks external light from reaching the panel, serving as a mediator that creates a dark inspection environment without requiring a complete darkroom setup.
2Measurement precision
If a darkroom setting is used to minimize external light influence, then measurement precision is improved, but ease of operation worsens due to difficult maintenance of darkroom conditions
Solution Approach 1:
The light-shielding function is merged into the inspection jig structure itself. The stage includes peripheral areas with barriers that block external light, creating a portable self-contained inspection environment that does not require maintaining separate darkroom conditions, thus improving ease of operation while preserving measurement precision.
Solution Approach 2:
The inspection jig is self-sufficient in creating the required dark inspection environment. The barriers and peripheral structures of the jig automatically block external light when the panel is placed on the stage, eliminating the need for external darkroom facilities or complex environmental control systems.
3Object-affected harmful factors
If barriers are added to block external light, then object-affected harmful factors are reduced, but device complexity increases
Solution Approach 1:
The stage is segmented into a seating area for the display panel and peripheral areas surrounding it. The barriers are specifically disposed in the peripheral areas, dividing the structure into functional zones. This segmentation allows light blocking to be achieved through targeted placement of barriers in peripheral regions rather than requiring complete enclosure, thus reducing overall device complexity.
Solution Approach 2:
The patent applies light-blocking barriers only in the peripheral areas where external light would enter, rather than enclosing the entire inspection area. The seating area remains open to accommodate the panel, while the peripheral areas provide localized light shielding. This local quality approach blocks harmful external light while maintaining structural simplicity and accessibility.
Data Source
AI summary
A display panel inspection jig includes a stage comprising a seating area in which a display panel is to be disposed for inspection thereof, and a peripheral area surrounding the seating area, and comprising an uneven upper surface and a lower surface, the seating area of the stage being provided with an opening, a first supporter disposed on a first portion of the uneven upper surface of the stage, and a first barrier disposed on a second portion of the uneven upper surface of the stage. The first portion of the uneven upper surface being at the seating area and spaced apart from the opening, and the second portion of the uneven upper surface is at the peripheral area. The first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage are fitted with each other.