Title:
MANUFACTURING METHOD AND MASK FOR LIQUID-CRYSTAL DISPLAY PANEL HAVING ONE-PIECE BLACK MATRIX AND PHOTORESIST SPACER
Document Type and Number:
WIPO Patent Application WO/2018/214198
Kind Code:
A1
Abstract:
A manufacturing method and a mask for a liquid-crystal display (LCD) panel having a one-piece black matrix and a photoresist spacer. The method utilizes a negative photoresist layer that undergoes different levels of cross-linking reactions and viscous flow when illuminated with different energy levels of light, and comprises: exposing a negative photoresist layer (5) by using a mask (1) including a first fully light-transmissive region (11), a second fully light-transmissive region (13), a first fully light-shielding region (15), a partially light-transmissive region (17), and a second fully light-shielding region (19); and performing development and baking processes to manufacture a one-piece black matrix and photoresist spacer in the LCD panel, wherein, an auxiliary photoresist spacer (53) has a film thickness smaller than that of a main photoresist spacer (51) and greater than that of a blocking wall (57) of the black matrix. The solution reduces the number of masks, eliminates a yellow-light process, lowers production costs and decreases production time, while maintaining a stable offset between the main photoresist space (51) and the auxiliary photoresist spacer (53), enhancing the yield rate of LCD panel products.
Inventors:
YU CHENGZHONG (CN)
Application Number:
PCT/CN2017/089249
Publication Date:
November 29, 2018
Filing Date:
June 20, 2017
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
G02F1/1335
Foreign References:
| US20160282665A1 | 2016-09-29 | |||
| CN105988249A | 2016-10-05 | |||
| CN105045034A | 2015-11-11 | |||
| CN104298009A | 2015-01-21 | |||
| US20080070332A1 | 2008-03-20 | |||
| US20150198842A1 | 2015-07-16 |
Attorney, Agent or Firm:
COMIPS INTELLECTUAL PROPERTY OFFICE (CN)
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