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Preparation method of corrosion-resistant baffle surface coating for TFT (thin film transistor) process and coating

A surface coating, corrosion-resistant technology, used in coatings, anti-corrosion coatings, metal material coating processes, etc., can solve problems such as short circuits, TFT film black spots, affecting the display quality of LED and OLED displays, and achieve simple process operations. , the effect of good sphericity and small porosity

Pending Publication Date: 2022-07-22
成都拓维高科光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the TFT production of LED and OLED displays, the TFT film may have defects such as black spots and short circuits, which will affect the display quality of LED and OLED displays

Method used

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  • Preparation method of corrosion-resistant baffle surface coating for TFT (thin film transistor) process and coating
  • Preparation method of corrosion-resistant baffle surface coating for TFT (thin film transistor) process and coating
  • Preparation method of corrosion-resistant baffle surface coating for TFT (thin film transistor) process and coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A preparation process of a corrosion-resistant baffle surface coating for a TFT process, comprising the following steps:

[0042] ⑴Powder preparation:

[0043] ① Take the powder raw material (in the powder raw material, Al 2 O 3 90wt%; TiO 2 10wt%) and deionized water (deionized water is used as dispersant, deionized water: powder raw material weight ratio=13:5), mechanically mixed for 1h to form slurry;

[0044] ②Add PVA as a binder (PVA is polyvinyl alcohol, the mass of PVA is 3wt% of the mass of the slurry) in the slurry formed in ①, and mechanically mix for 2h to form a granulated slurry.

[0045] ③ Spray and granulate the granulated slurry formed in ② in a spray granulator to form composite ceramic spray particles: During the spray granulation process, the temperature of the drying room is maintained at about 250°C, and the air inlet temperature of the spray granulator is 250°C, and the outlet temperature is 250°C. The air temperature was 117°C, and the atomiz...

Embodiment 2

[0054] A preparation process of a corrosion-resistant baffle surface coating for a TFT process, comprising the following steps:

[0055] ⑴Powder preparation:

[0056] ① Take the powder raw material (in the powder raw material, Al 2 O 3 90wt%; TiO 2 10wt%) and deionized water (deionized water is used as dispersant, deionized water: powder raw material weight ratio=13:5), mechanically mixed for 1h to form slurry;

[0057] ②Add PVA as a binder (PVA is polyvinyl alcohol, the mass of PVA is 3wt% of the mass of the slurry) in the slurry formed in ①, and mechanically mix for 2h to form a granulated slurry.

[0058] ③ Spray and granulate the granulated slurry formed in ② in a spray granulator to form composite ceramic spray particles: During the spray granulation process, the temperature of the drying room is maintained at about 250°C, and the air inlet temperature of the spray granulator is 250°C, and the outlet temperature is 250°C. The air temperature was 117°C, and the atomiz...

Embodiment 3

[0066] A preparation process of a corrosion-resistant baffle surface coating for a TFT process, comprising the following steps:

[0067] ⑴Powder preparation:

[0068] ① Take the powder raw material (in the powder raw material, Al 2 O 3 89.8wt%; TiO 2 10wt%; CeO 2 0.2wt%) and deionized water (deionized water is used as dispersant, deionized water: powder raw material weight ratio=13:5), mechanically mixed for 1h to form slurry;

[0069] ②Add PVA as a binder (PVA is polyvinyl alcohol, the mass of PVA is 3wt% of the mass of the slurry) in the slurry formed in ①, and mechanically mix for 2h to form a granulated slurry.

[0070] ③ Spray and granulate the granulated slurry formed in ② in a spray granulator to form composite ceramic spray particles: During the spray granulation process, the temperature of the drying room is maintained at about 250°C, and the air inlet temperature of the spray granulator is 250°C, and the outlet temperature is 250°C. The air temperature was 11...

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Abstract

The invention discloses a preparation method of a corrosion-resistant baffle surface coating for a TFT (Thin Film Transistor) process, which comprises the following steps: (1) powder preparation: (1) taking a composite ceramic powder raw material, and mixing to form slurry; (2) adding a binder into the slurry formed in the step (1), and mixing to form granulation slurry; (3) carrying out spray granulation on the granulation slurry formed in the step (2) in a spray granulator to form basically spherical composite ceramic spray particles; (2) pretreatment: carrying out pretreatment on the baffle element base body; and (3) plasma spraying: performing plasma spraying on the composite ceramic spray particles to form a composite ceramic layer. According to the invention, the defects of black spots, short circuit and the like of the TFT film are reduced, and the display quality of LED and OLED displays is improved.

Description

technical field [0001] The present application relates to the field of displays, and in particular, to a method for preparing a surface coating of a corrosion-resistant baffle for a TFT process and a surface coating for a corrosion-resistant baffle for a TFT process. Background technique [0002] In the TFT production of LED and OLED displays, the TFT film may have defects such as black spots and short circuits, which affect the display quality of LED and OLED displays. SUMMARY OF THE INVENTION [0003] Based on the above problems, the present application provides a method for preparing a corrosion-resistant baffle surface coating for a TFT process. The surface coating prepared by the method reduces defects such as black spots and short circuits of TFT films, and improves the display of LED and OLED displays. quality. [0004] A preparation method of a corrosion-resistant baffle surface coating for a TFT process, comprising the following steps: [0005] ⑴Powder preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C04B35/10C04B35/626C04B35/634C22C19/05C23C4/073C23C4/11C23C4/134
CPCC09D1/00C09D5/08C04B35/10C04B35/6264C04B35/62655C04B35/62695C04B35/63416C23C4/134C23C4/11C23C4/073C22C19/058
Inventor 唐思成罗雪春胡家铭万其凯钟庆远黎清贤
Owner 成都拓维高科光电科技有限公司
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