[특허]Display methods and apparatus

[미국특허] Display methods and apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09G-003/18
출원번호	UP-0326784 (2006-01-06)
등록번호	US-7742016 (2010-07-12)
발명자 / 주소	Hagood, Nesbitt W. McAllister, Abraham Lewis, Stephen Barton, Roger
출원인 / 주소	Pixtronix, Incorporated
대리인 / 주소	Ropes & Gray LLP
인용정보	피인용 횟수 : 25 인용 특허 : 214

초록

The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.

대표청구항 ▼

What is claimed is: 1. A display apparatus comprising: a shutter assembly comprising a shutter and a drive electrode, configured such that in response to the generation of a potential difference between the shutter and the drive electrode, the shutter is electrostatically drawn towards the drive electrode; and a control matrix including, a first voltage interconnect for applying a first voltage to one of the shutter and the drive electrode, and a second voltage interconnect for applying a second voltage to the other of the shutter and the drive electrode, thereby generating the potential difference between the shutter, wherein the first voltage has a higher magnitude than the second voltage and the first voltage is applied to the one of the shutter and the drive electrode having a lower capacitance. 2. The display apparatus of claim 1, wherein the second voltage is at or near ground. 3. The display apparatus of claim 1, wherein the second voltage varies between ground and about one half the first voltage. 4. The display apparatus of claim 1, wherein the second voltage interconnect is a global actuation interconnect. 5. The display apparatus of claim 1, wherein the shutter assembly comprises a second drive electrode connected to a third voltage interconnect. 6. The display apparatus of claim 5, wherein application of the first voltage to the drive electrode results in the opening of the shutter and application of a third voltage to the second drive electrode closes the shutter. 7. The display apparatus of claim 1, wherein the application of the first voltage to the drive electrode opens the shutter. 8. The display apparatus of claim 1, wherein the application of the first voltage to the drive electrode absent the application of the second voltage opens the shutter. 9. The display apparatus of claim 1, wherein application of the second voltage to the shutter prevents movement of the shutter in response to the application of the first voltage. 10. The display apparatus of claim 1, wherein the shutter assembly comprises a mechanical support for limiting the range of motion of the shutter substantially to a movement plane parallel to at which a light source is directed. 11. The display apparatus of claim 10, wherein the shutter is electrostatically drawn substantially in the movement plane. 12. The display apparatus of claim 10, wherein the shutter is electrostatically drawn substantially in the movement plane. 13. The display apparatus of claim 1, wherein the application of the first voltage to the drive electrode opens the shutter. 14. The display apparatus of claim 1, wherein the application of the first voltage to the drive electrode absent the application of the second voltage opens the shutter. 15. The display apparatus of claim 1, wherein application of the second voltage to the shutter prevents movement of the shutter in response to the application of the first voltage. 16. The display apparatus of claim 1, wherein the shutter assembly comprises a mechanical support for limiting the range of motion of the shutter substantially to a movement plane parallel to at which a light source is directed. 17. A method of forming an image, comprising: providing a shutter assembly comprising a shutter and a drive electrode, configured such that in response to the generation of a potential difference between the shutter and the drive electrode, the shutter is electrostatically drawn towards the drive electrode; and applying a first voltage to one of the shutter and the drive electrode; applying a second voltage to the other of the shutter and the drive electrode, thereby generating the potential difference between the shutter, wherein the first voltage has a higher magnitude than the second voltage and the first voltage is applied to the one of the shutter and the drive electrode having a lower capacitance. 18. The method of claim 17, wherein the second voltage is at or near ground. 19. The method of claim 17, comprising varying the second voltage between ground and about one half the first voltage. 20. The method of claim 19, wherein the shutter assembly forms part of a pixel in an array of pixel, and varying the second voltage provides for global actuation of a plurality of pixels in the array of pixels. 21. The method of claim 17, wherein the shutter assembly comprises a second drive electrode connected to a third voltage interconnect. 22. The method of claim 21, applying the first voltage to the drive electrode opens the shutter and applying a third voltage to the second drive electrode closes the shutter.

이 특허에 인용된 특허 (214) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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