로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0978829 (2007-10-29) |
| 등록번호 | US-8519945 (2013-08-27) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 15 인용 특허 : 414 |
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.
1. A direct view display apparatus comprising: a transparent substrate;an array of pixels formed on the substrate including, for each pixel, a MEMS-based light modulator including a first movable electrostatic actuator; anda control matrix connected to the substrate including, for a pixel, a write-e
1. A direct view display apparatus comprising: a transparent substrate;an array of pixels formed on the substrate including, for each pixel, a MEMS-based light modulator including a first movable electrostatic actuator; anda control matrix connected to the substrate including, for a pixel, a write-enabling interconnect for enabling the pixel to respond to a data voltage and a data voltage interconnect for applying the data voltage to a data switch, thereby controlling the state of the light modulator of the pixel; anda voltage regulator that limits variation in a voltage across the first movable electrostatic actuator, wherein the variation in the voltage is caused by a movement of at least a portion of the first movable electrostatic actuator. 2. The direct-view display apparatus of claim 1, wherein the voltage regulator comprises a display driver including a DC voltage source. 3. The direct-view display apparatus of claim 2, comprising for a pixel, an actuation voltage interconnect, distinct from the data voltage interconnect, for connecting the first movable electrostatic actuator to the direct-view display driver. 4. The direct-view display apparatus of claim 3, comprising, for a pixel, a switch, other than the data switch, for controlling the application of the voltage output by the direct-view display driver to the first movable electrostatic actuator. 5. The direct-view display apparatus of claim 1, wherein each pixel includes a voltage regulator. 6. The direct-view display apparatus of claim 5, wherein the voltage regulator comprises a capacitor in electrical communication with the first electrostatic actuator. 7. The direct-view display apparatus of claim 1, wherein the voltage variation is limited if, during actuation, movement of portions of the first movable electrostatic actuator results in a voltage reduction of less than twenty percent of a voltage level required to initiate actuation. 8. The direct-view display apparatus of claim 1, wherein the voltage variation is limited if, during actuation, movement of portions of the first movable electrostatic actuator results in a voltage reduction of less than ten percent of a voltage level required to initiate actuation. 9. The direct-view display apparatus of claim 1, wherein the voltage variation is limited if, during actuation, movement of portions of the first movable electrostatic actuator results in a voltage reduction of less than five percent of a voltage level required to initiate actuation. 10. The direct-view display apparatus of claim 1, comprising a voltage inverter. 11. The direct-view display apparatus of claim 10, wherein the voltage inverter comprises a CMOS circuit. 12. The direct-view display apparatus of claim 1, wherein each light modulator comprises a second electrostatic actuator for applying a force opposing a force applied by the first actuator. 13. The direct-view display apparatus of claim 12, comprising, for a pixel, a flip-flop electrically coupling the first movable electrostatic actuator and the second electrostatic actuator. 14. The direct-view display apparatus of claim 12, comprising, for a pixel, a cross-coupled inverter electrically coupling the first movable electrostatic actuator and the second electrostatic actuator. 15. The direct-view display apparatus of claim 1, wherein the MEMS-based light modulators comprise shutter-based light modulators. 16. The direct-view display apparatus of claim 1, comprising a second electrostatic actuator, opposing the first movable electrostatic actuator, for controlling the state of the MEMS-based light modulators. 17. The direct-view display apparatus of claim 16, comprising, for a pixel, a first actuation voltage interconnect for providing a voltage to the first movable electrostatic actuator sufficient to actuate the first movable electrostatic actuator. 18. The direct-view display apparatus of claim 17, wherein the first actuation voltage interconnect provides a substantially constant voltage throughout the setting of an image and through the setting of subsequent images. 19. The direct-view display apparatus of claim 17, wherein, throughout operation of the direct-view display, the first actuation voltage interconnect provides a substantially constant voltage. 20. The direct-view display apparatus of claim 17, wherein first actuation voltage interconnect for a pixel is shared by a plurality of pixels. 21. The direct-view display apparatus of claim 17, comprising, for a pixel, a second voltage actuation interconnect, distinct from the data voltage interconnect and the first voltage actuation interconnect, for providing a voltage sufficient to actuate the second actuator. 22. The direct-view display apparatus of claim 21, wherein the voltage provided by the second actuation voltage interconnect is insufficient to actuate the second actuator if a voltage greater than a maintenance voltage is applied to the first actuator. 23. The direct-view display apparatus of claim 21, comprising, for a pixel, a switch, other than the data switch, for regulating the application of the voltage provided via the first actuation voltage interconnect. 24. The direct-view display apparatus of claim 21, wherein the data voltage interconnect for the pixel controls the actuation of both the first and second actuators. 25. The direct-view display apparatus of claim 21, comprising a common voltage interconnect coupled to the light modulators of a plurality of pixels for applying a common bias voltage to the light modulators. 26. The direct-view display apparatus of claim 21, wherein the data switch comprises a discharge transistor for selectively discharging the voltage provided via the first voltage actuation interconnect. 27. The direct-view display apparatus of claim 26, comprising a global actuation interconnect coupled to the discharge transistors of a plurality of pixels for selectively enabling the voltage provided to the respective pixels via the data voltage interconnects corresponding to the pixels to control the discharge transistor. 28. The direct-view display apparatus of claim 1, comprising a voltage actuation interconnect electrically connected directly to the first movable electrostatic actuators of pixels in multiple rows and multiple columns of the array of pixels. 29. A display apparatus comprising: a transparent substrate;an array of pixels including for each pixel, a MEMS-based light modulator formed on the transparent substrate; anda control matrix formed on the transparent substrate for addressing the MEMS-based light modulators of the array, wherein for each pixel, the control matrix includes a CMOS circuit comprising a level shifting inverter for controlling an actuation voltage with a data voltage, wherein the data voltage is less than the actuation voltage. 30. The display apparatus of claim 29, wherein the CMOS circuit comprises a flip-flop. 31. The display apparatus of claim 30, wherein the flip-flop controls the application of an actuation voltage to the light modulator. 32. The display apparatus of claim 30, wherein the flip-flop electrically couples opposing actuators of the light modulator. 33. The display apparatus of claim 29, wherein the MEMS-based light modulator comprises at least one of a shutter-based light modulator, a light tap-based light modulator, and an electrowetting-based light modulator. 34. The direct-view display apparatus of claim 29, wherein the MEMS-based light modulator comprises a light tap-based light modulator. 35. The direct-view display apparatus of claim 29, wherein the MEMS-based light modulator comprises an electrowetting-based light modulator.
해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.