Detection Element for Display Panel Aging Verification
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Solution Overview
Problem
The existing manufacturing process of display panels lacks an efficient method to determine if the panels have undergone the necessary aging process, leading to issues with yield rate and productivity due to manual detection of bright and dark spots, which can be caused by various factors other than aging.
Innovation Solution
Incorporating a detection element in the array substrate that changes states in response to a driving signal, allowing for the determination of whether the display pixels have undergone the aging process by detecting the state of the detection element, thereby simplifying the detection process and reducing the risk of missed inspections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual detection of bright and dark spots is used to determine aging process, then detection can be performed, but detection accuracy is low and yield rate is affected due to missed inspections
Solution Approach 1:
The patent introduces a detection element as an intermediary component that objectively indicates whether the aging process has been performed. This detection element serves as a mediator between the aging process and the inspection system, providing clear, unambiguous information about aging status without relying on subjective manual evaluation of display characteristics.
Solution Approach 2:
The patent replaces the manual mechanical inspection system with an automated detection system based on electrical signals. The detection element responds to driving signals with measurable electrical characteristics, enabling automated, precise detection of aging status and eliminating human error in the inspection process.
2Reliability
If manual detection methods are used, then inspection can be performed, but the detection process is complex and time-consuming
Solution Approach 1:
The patent extracts the aging detection function from the complex manual inspection process and concentrates it in a dedicated detection element. This element can be integrated into the array substrate, separating the detection function from the display function and enabling simple, direct detection of aging status through electrical measurements.
Solution Approach 2:
The detection element serves multiple functions: it indicates aging status, provides detection signals, and can be integrated with the display pixel structure. This multi-functionality reduces the need for separate detection systems and simplifies the overall detection process while maintaining high reliability.
3Stability of the object's composition
If aging process is performed on display pixels, then luminous efficiency stability is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent implements preliminary aging action during the manufacturing process by applying a driving signal to the detection element before final product completion. This preliminary action ensures that the aging process is systematically performed and verified, stabilizing luminous efficiency while maintaining a streamlined manufacturing workflow through integrated detection.
Data Source
AI summary
An array substrate, a display panel and a detection method are provided. The array substrate includes a plurality of display pixels and at least one detection element. When an aging process is performed on the plurality of display pixels, a first driving signal is applied on the at least one detection element and the at least one detection element changes from a first state to a second state, wherein the second state is different from the first state. The second state of the at least one detection element indicates that the plurality of display pixels has undergone the aging process.