[특허]Color display system for NVIS Class A compatibility

[미국특허] Color display system for NVIS Class A compatibility 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G02F-0011347
출원번호	US-0236973 (2002-09-06)
발명자 / 주소	Johnson, Rick J.
출원인 / 주소	Rockwell Collins
인용정보	피인용 횟수 : 29 인용 특허 : 5

초록 ▼

The disclosure is directed to a full color liquid crystal display system providing compatibility with Class A night vision imaging goggles. One embodiment of the invention is directed to a color liquid crystal display (LCD) having dual modes of operation. The color LCD display includes a normal mode light source, a liquid crystal display stack positioned so as to receive light from the normal mode light source, and a night vision imaging system (NVIS) mode light source. The NVIS mode light source includes a NVIS mode white light source, a NVIS mode red light source, a NVIS filter receiving light from both the NVIS mode white light source and the NVIS mode red light source, and a waveguide receiving light from the NVIS filter for reflection to the LCD stack.

대표청구항 ▼

1. A color display having dual modes of operation, comprising:a normal mode light source; a display element positioned so as to receive light from the normal mode light source; and a night vision imaging system (NVIS) mode light source, including: a NVIS mode white light source; a NVIS mode red light source; a NVIS filter receiving light from both the NVIS mode white light source and the NVIS mode red light source; and a light redirection device receiving light from the NVIS filter for redirection to the display element. 2. The color display of claim 1, wherein the display element is a liquid crystal display stack.3. The color display of claim 2, further including a diffuser panel positioned between the LCD stack and the normal mode light source and NVIS mode light sources.4. The color display of claim 1, wherein the NVIS filter filters light having a wavelength greater than approximately 610 nm.5. The color display of claim 1, wherein the red light source provides illumination such that the light output from the display element is full color.6. The color display of claim 1, wherein the light output from the display element does not include light with a wavelength greater than approximately 610 nm.7. The color display of claim 1, wherein the NVIS white light, NVIS red light source, and normal mode light sources include light emitting diodes.8. The color display of claim 1, wherein the NVIS red light source is individually powered such that the luminance output of the NVIS red light source can be individually controlled.9. The color display of claim 1, wherein the red light source provides light having a wavelength less than 610 nm.10. A color liquid crystal display (LCD), comprisinga white light source; a red light source; a night vision imaging system (NVIS) filter receiving light from both the white light source and the red light source; and a liquid crystal display stack positioned to receive light from the diffuser. 11. The color LCD display of claim 9, further including a diffuser panel positioned between the NVIS filter and the liquid crystal display stack so as to receive light from the NVIS filter and transmit light to the liquid crystal display stack.12. The color LCD display of claim 9, wherein the NVIS filter filters light having a wavelength greater than 610 nm.13. The color LCD display of claim 9, wherein the red light source provides illumination such that the light output from the LCD stack include all of the wavelengths in the visible spectrum having a wavelength less than 610 nm.14. The color LCD display of claim 9, wherein the light output from the LCD stack does not include light having a wavelength greater than 610 nm.15. The color LCD display of claim 9, wherein the NVIS white light, the NVIS red light source, and the normal mode light sources are light emitting diodes.16. The color LCD display of claim 9, wherein the NVIS red light source is individually powered such that the luminance output of the NVIS red light source can be individually controlled.17. The color LCD display of claim 9, wherein the red light source outputs light having a wavelength less than 610 nm.18. A method for lighting a full color liquid crystal display, comprising:providing a white light source; providing a red light source; and providing a NVIS filter to receive a light input from the white light source and the red light source and filter the light input to remove light having a wavelength greater than 610 nm. 19. The method of claim 18, further including providing the output from the NVIS filter to a LCD stack.20. The method of claim 18, further including providing a diffuser positioned between the NVIS filter and the LCD stack.21. The method of claim 18, wherein the luminance output from the red light source is variable.22. The method of claim 18, wherein the light from the red light source has a wavelength less than 610 nm.23. The method of claim 18, wherein the luminance output from the white light source is variable.

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[미국특허] Color display system for NVIS Class A compatibility 원문보기

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[미국특허] Color display system for NVIS Class A compatibility 원문보기

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