Wiring Identification Patterns for Display Repair
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Solution Overview
Problem
Conventional display apparatuses, particularly organic light emitting display apparatuses, face challenges in easily identifying and repairing shorts between overlapping wirings, especially as the number of wirings increases, making it difficult to locate and correct defects with the naked eye.
Innovation Solution
The implementation of identification patterns on wirings, including varying numbers, arrangements, shapes, and sizes of contact holes, allows for intuitive identification and differentiation of individual wirings, facilitating the detection and repair of shorts through repeated patterns on a pixel block basis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of wirings is increased to support more pixels, then the display resolution is improved, but the difficulty of detecting and measuring wiring shorts increases
Solution Approach 1:
The wirings are segmented by assigning unique identification patterns to different wiring groups. Each wiring or wiring group is divided into identifiable segments with distinct patterns, allowing operators to locate specific wirings among many overlapping ones by recognizing their unique identification patterns rather than searching through the entire complex wiring network.
Solution Approach 2:
Different identification patterns are applied to different wirings, creating visual differentiation similar to color coding. These patterns vary in characteristics such as contact hole arrangement, shape, or position, enabling operators to distinguish between overlapping wirings and quickly identify the specific wiring containing a short circuit.
2Ease of repair
If identification patterns are added to wirings, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
Identification patterns are incorporated into the wiring structure during the manufacturing process, before the device is deployed. This preliminary action ensures that the patterns are already in place to facilitate future repair operations, eliminating the need for additional marking steps during troubleshooting and enabling operators to quickly locate and repair wiring shorts.
Solution Approach 2:
The identification patterns serve as an intermediary element between the complex wiring network and the operator's detection process. Rather than requiring direct inspection of the wiring functionality, the patterns provide a visual mediator that guides operators to the specific wiring location, simplifying the repair process despite the underlying wiring complexity.
Data Source
AI summary
A display apparatus includes a plurality of first wirings extending in a first direction and a plurality of second wirings extending in a second direction crossing the first direction. Differing first identification patterns are present on the plurality of corresponding first wirings to identify the plurality of first wirings, and differing second identification patterns are present on the plurality of corresponding second wirings to identify the plurality of second wirings.