Chinese Optics, Volume. 17, Issue 3, 704(2024)
Adjusting the compactness and hydrophobicity of color filters to decrease gas release during TFT-LCD fabrication
Fig. 1. Molecular structures of different monomers: G6-AG-001, G6-AG-002, DPEA-12 and DPCA-60.
Fig. 2. Three possible causes affecting the gas release from CFs. (a) Outgas from CFs; (b) low compactness and (c) low hydrophobicity of CFs
Fig. 3. Thermogravimetric analysis of PT-1 and PT-2. The samples were baked at 230 °C for 50 min, 210 °C for 60 min and 230 °C for 60 min, sequentially
Fig. 4. (a) The molecular structures of P1 and P2. (b) The schematic illustration of the porous structures. The red bars represent the crosslinking and the dotted circles represent the voids. P1 has large voids and P2 is more compact. (c) SEM images of sample A and sample B. (d) Pumping time of the two samples
Fig. 5. (a) Hydrophilic group and hydrophobic group in M2 and M3. (b) Contact angles of three samples, Sample E being the most hydrophobic. (c) Pumping time of three samples. (d) TGA curves of three pretreated samples by high temperature and humidity
Fig. 7. Color image of fruits displayed on a TFT-LCD prototype using sample F as a green CF
Table 1. Compositions of CFs
View tableView in ArticleTable 1. Compositions of CFs
Compositions Sample PT-1 PT-2 A B C D E F Color Paste G58+Y138 Polymer (wt%) P1 P1 P1 50% P1 50% P2 P1 P1 P1 50% P1 50% P2 Monomers G6-AG-001 DPCA-60 G6-AG-001 G6-AG-001 DPEA-12 G6-AG-001 DPEA-12 G6-AG-001 G6-AG-001 G6-AG-002 G6-AG-001 DPCA-60 G6-AG-001 DPCA-60 Polymer/Monomer (wt%) 40%/60% 40%/60% 35%/65% 35%/65% 35%/65% 35%/65% 35%/65% 35%/65% Photoinitiator (wt%) 0.15% Additive (wt%) 0.15% Solvent PGMEA+MBA
Table 2. Pumping time of vacuum drying and mass loss
View tableView in ArticleTable 2. Pumping time of vacuum drying and mass loss
Items CF PT-1 PT-2 Pumping time/s 62.3 65.8 Mass loss (40−215 min) 2.46% 1.50% Mass loss (0−30 min) 0.20% 0.85%
Table 3. The thickness and shrinkage of the photoresist layer before and after UV exposure
View tableView in ArticleTable 3. The thickness and shrinkage of the photoresist layer before and after UV exposure
Sample Items d1/μm d2/μm Shrinkage (%) Pumping time/s Sample A 2.04 2.04 0.37 7 Sample B 2.17 2.15 0.76 5.5
Table 4. Data of the three samples CE
View tableView in ArticleTable 4. Data of the three samples CE
Sample Monomer Proportion Contact angle/(°) Developing time/s Property Mass loss Pumping time/s C M1 100% 49.4 24 / 9.7% 7 D M1+M2 70%+30% 48.6 21 More hydrophilic 23.4% 7.5 E M1+M3 70%+30% 51.3 29 More hydrophobic 3.5% 3
Table 5. Optical and VCD characteristics of reference CF and sample F
View tableView in ArticleTable 5. Optical and VCD characteristics of reference CF and sample F
Item Reference CF Sample F Rx 0.642 0.642 Ry 0.337 0.337 Gx 0.301 0.301 Gy 0.607 0.607 Bx 0.150 0.149 By 0.07 0.068 Wx 0.276 0.278 Wy 0.297 0.301 Tr% 5.85% 5.89% NTSC 70.8% 71% Pumping time/s 62.3 62
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Ji LI, Xia ZHANG, Yi FENG, Chang LIAO, Jie ZHANG, Yong-ming YIN, Hong MENG. Adjusting the compactness and hydrophobicity of color filters to decrease gas release during TFT-LCD fabrication[J]. Chinese Optics, 2024, 17(3): 704
Category: Original Article
Received: Nov. 15, 2023
Accepted: Dec. 14, 2023
Published Online: Jul. 31, 2024
The Author Email: Yong-ming YIN (yinyongming@smbu.edu.cn), Hong MENG (menghong@pku.edu.cn)
