Mother substrate for color conversion substrate and method of testing color conversion substrate thereof
The mother substrate for color conversion substrates addresses defects by using varied ink layers and tag areas to enhance light efficiency and defect detection, improving the overall performance of color conversion substrates.
KR102990683B1Active Publication Date: 2026-07-15SAMSUNG DISPLAY CO LTD
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- SAMSUNG DISPLAY CO LTD
- Filing Date
- 2021-06-30
- Publication Date
- 2026-07-15
AI Technical Summary
Technical Problem
Existing color conversion substrates face challenges in identifying defects caused by ink mixing and overflow during the inkjet process, leading to reduced light efficiency.
Method used
A mother substrate for color conversion substrates is designed with distinct ink layers and tag areas, allowing for precise comparison and identification of defects by varying ink volumes and ratios in sub-tag and over-tag regions.
Benefits of technology
This approach enables quick and accurate identification of defects, thereby improving the light efficiency and defect improvement rate of color conversion substrates.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 112021075562013-PAT00004_ABST
Abstract
A mother substrate for a color conversion substrate comprises a display area and a tag area disposed around the display area, and includes a substrate including a plurality of sub-tag areas, a first ink layer having a first color disposed in each of the sub-tag areas, and a second ink layer having a second color different from the first color, wherein at least one of the volume of the first ink layer and the volume of the second ink layer in each of the sub-tag areas are different from each other.
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