| 研究生: |
蔡曜聰 Tasi, Yao-Tsung |
|---|---|
| 論文名稱: |
TFT-LCD COG 自動校正及檢測 Automatic Alignment and Inspection of TFT-LCD COG |
| 指導教授: |
連震杰
Lien, Jenn-Jier |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 資訊工程學系 Department of Computer Science and Information Engineering |
| 論文出版年: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 75 |
| 中文關鍵詞: | TFT-LCD 、COG 、檢測 |
| 外文關鍵詞: | COG, TFT-LCD, inspection |
| 相關次數: | 點閱:56 下載:3 |
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摘要
晶粒-玻璃接合技術(Chip-on-Glass,COG)擁有密度最高、製程最少、成本最低等優點,是未來液晶顯示器(Liquid Crystal Display,LCD)驅動IC構裝的主流技術之一。電路壓合是薄膜電晶體液晶顯示器(TFT-LCD)生產流程中不可或缺的製程之一,其主要的工作是經由導電粒子,連接IC Pad與面板的ITO(Indium Tin Oxide)而達成電氣導通之目的。
目前大部份的生產廠商仍是依賴人工目視來檢測電路壓合後於IC Pad區域內是否有足夠數量的導電粒子,以及壓合過程中面板線路與IC線路是否對位,這對於檢測的效能來說,不僅要使用較多時間也要花費較高的成本。本論文重點在於建立一套自動化的數位光學影像分析系統,來取代人工做目視檢測的工作, 本系統主要的技術包括高斯濾波器(Gaussian Filter),樣本比對(Pattern Matching),連接物件標記(Connected Component Labeling)等,目前檢測速度已可達到90秒檢測一個面板。
Abstract
The COG technology has become the most competitive technology for LCD driver IC packaging due to its advantages of the highest density, the less process steps and the lowest cost. Circuit press is one of the most important manufacturing processes in the manufacturing of TFT-LCD. The main work of this process is to achieve electric conducting by the conduct particles between the drive IC pad and ITO electrode.
In most manufactories, some performances on LCD are generally examined by human eyes to check if there are enough particles in the IC pad area after the circuit press, and the orientation of the circuit alignment between the IC pad and the panel is also inspected. It will cause much time and higher cost. In this study, an automatic inspection system with a digital image analysis was developed to replace the manual inspection. The main technology include Gaussian filter, pattern matching, connect component labeling were constructed in this measuring system. The inspection speed on LCD panel could be successfully achieved ninety seconds per panel.
詳細參考文獻請直接與作者連絡或參考實驗室網站
http://robotics.csie.ncku.edu.tw/