Electrowetting display apparatus and method of manufacturing the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-026/00
G02B-026/08
G02F-001/29
G02F-001/167
출원번호
US-0569801
(2012-08-08)
등록번호
US-9030727
(2015-05-12)
우선권정보
KR-10-2012-0027357 (2012-03-16)
발명자
/ 주소
Kodaira, Taimei
출원인 / 주소
Amazon Technologies, Inc.
대리인 / 주소
Lee & Hayes, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A manufacturing method of an electrowetting display apparatus, in which a pixel electrode is formed on a substrate including pixel areas, a first mixture including a hydrophobic material and a solvent is disposed on the substrate to form a hydrophobic insulating layer, and a first heat process is pe
A manufacturing method of an electrowetting display apparatus, in which a pixel electrode is formed on a substrate including pixel areas, a first mixture including a hydrophobic material and a solvent is disposed on the substrate to form a hydrophobic insulating layer, and a first heat process is performed to remove a portion of the solvent. Then, a second mixture including a material for a barrier and the solvent is disposed on the hydrophobic insulating layer, and the second mixture is patterned to form a barrier wall surrounding the pixel electrode in each pixel area. A second heat process is performed to remove the solvent in the hydrophobic insulating layer and the barrier wall, and a polar fluid and a non-polar fluid are disposed on the pixel electrode to form an electrowetting layer.
대표청구항▼
1. An electrowetting display apparatus comprising: a first substrate comprising a base substrate comprising a plurality of pixel areas, a plurality of pixel electrodes spaced apart from each other and respectively disposed in the plurality of pixel areas, and a hydrophobic insulating layer disposed
1. An electrowetting display apparatus comprising: a first substrate comprising a base substrate comprising a plurality of pixel areas, a plurality of pixel electrodes spaced apart from each other and respectively disposed in the plurality of pixel areas, and a hydrophobic insulating layer disposed on the plurality of pixel electrodes, wherein the hydrophobic insulating layer comprises a hydrophobic organic resin and a hydrophobic inorganic particle;a solvent disposed with the hydrophobic insulating layer, wherein the solvent is capable of at least partially dissolving the hydrophobic insulating layer at temperatures at or above a boiling point of the solvent;a second substrate facing the first substrate and comprising a common electrode;an electrowetting layer disposed between the first substrate and the second substrate and comprising a first fluid and a second fluid; anda barrier wall disposed between the plurality of pixel areas and on the hydrophobic insulating layer, wherein the barrier wall comprises a photosensitive resin and an additive. 2. The electrowetting display apparatus of claim 1, wherein the barrier wall surrounds the plurality of pixel areas. 3. The electrowetting display apparatus of claim 1, wherein the hydrophobic organic resin comprises at least one of a fluoropolymer, a poly(p-xylylene) polymer, a polypropylene-based resin, and a siloxane-based resin. 4. The electrowetting display apparatus of claim 1, wherein the hydrophobic inorganic particle comprises at least one of SiO2, Al2O3, ZnO, TiO2, and BST. 5. The electrowetting display apparatus of claim 1, wherein the pixel electrode comprises a first conductive layer and a second conductive layer disposed on the first conductive layer, the first conductive layer comprising one of a transparent conductive oxide and a metal, and the second conductive layer comprising the other one of the transparent conductive oxide and the metal. 6. A method of manufacturing an electrowetting display apparatus, comprising: forming a pixel electrode on a substrate comprising pixel areas, the pixel electrode being formed in individual ones of the pixel areas;disposing a first mixture comprising a hydrophobic material and a solvent on the substrate to form a hydrophobic insulating layer;performing a first heat process on the hydrophobic insulating layer;disposing a second mixture comprising a material for a barrier and the solvent on the hydrophobic insulating layer;patterning the second mixture to form a barrier wall surrounding the pixel electrodes in individual ones of the pixel areas;performing a second heat process; anddisposing a first fluid and a second fluid on the pixel electrode to form an electrowetting layer. 7. The method of claim 6, wherein the first heat process is performed in a temperature range from a boiling point of the solvent to a temperature higher than the boiling point by about 10 degrees or less. 8. The method of claim 6, wherein after performing the first heat process, a residual amount of the solvent in the hydrophobic insulating layer is about 1 wt % to about 99 wt % of a total amount of the solvent contained in the first mixture. 9. The method of claim 6, wherein the hydrophobic material comprises a hydrophobic organic resin and a hydrophobic inorganic particle. 10. The method of claim 9, wherein the hydrophobic organic resin comprises at least one of a fluoropolymer, a poly(p-xylylene) polymer, a polypropylene-based resin, and a siloxane-based resin. 11. The method of claim 9, wherein the hydrophobic inorganic particle comprises at least one of SiO2, Al2O3, ZnO, TiO2, and BST. 12. The method of claim 6, wherein the solvent comprises an organic solvent. 13. The method of claim 12, wherein the solvent comprises a perflourinated solvent. 14. The method of claim 6, wherein the material for the barrier wall comprises a photosensitive resin and an additive. 15. The method of claim 14, wherein the solvent contained in the second mixture is about 10 wt % or less of a total amount of the second mixture. 16. The method of claim 6, wherein the pixel electrode comprises a first conductive layer and a second conductive layer disposed on the first conductive layer, the first conductive layer comprising one of a transparent conductive oxide and a metal material, and the second conductive layer comprising the other one of the transparent conductive oxide and the metal material. 17. The electrowetting display apparatus of claim 1, wherein the first fluid comprises a polar fluid and the second fluid comprises a non-polar fluid. 18. The method of claim 6, wherein the first fluid comprises a polar fluid and the second fluid comprises a non-polar fluid. 19. The method of claim 6, wherein the first heat process removes a portion of the solvent. 20. The method of claim 6, wherein the second heat process removes the solvent in the hydrophobic insulating layer and the barrier wall.
Shimizu Michio,JPX ; Konuma Toshimitsu,JPX ; Nishi Takeshi,JPX, LCD polymerized column spacer formed on a modified substrate, from an acrylic resin, on a surface having hydrophilic an.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.