Method and apparatus for image and video display

• US 6,680,579 B2
• Filed: 12/14/2001
• Issued: 01/20/2004
• Est. Priority Date: 12/14/2001
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Allen, William J., McClelland, Paul H., Da Cunha, John M.
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): TRAN, THUY V
• Application Number:
  US10/020,112
• Publication Number:
  US 20030111965A1
• Time in Patent Office: 767 Days
• Field of Search: 315/169.3, 345/39, 345/46, 349/5, 349/7, 359/443, 359/460
• US Class Current: 315/169.3
• CPC Class Codes: G09G 2360/141 the light conveying information used for selecting or modulating the light emitting or modulating element
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
• CPC Class Codes: G09G 3/02 by tracing or scanning a light beam on a screen
• CPC Class Codes: H04N 9/30 using solid-state colour display devices
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026

Abstract

The present invention relates to a display configured to display images that includes multiple display elements capable of controlling light within a visible-light spectrum. The display elements are arranged over a display surface of the display. The display also includes one or more receivers arranged with the display elements over the display surface of the display. The receivers are coupled with the display elements and receive transmitted image information. The receivers activate the display elements in response to, and in correspondence with, the image information.

Claims

1. A display comprising:

a plurality of display elements capable of controlling light within a visible-light spectrum, the display elements being arranged over a display surface of the display; and

one or more receivers arranged with the display elements over the display surface, wherein the one or more receivers are coupled with the display elements and are adapted to receive transmitted image information and activate the display elements in response to, and in correspondence with, the image information, and wherein the one or more receivers each includes one or more radio-frequency receivers.

2. A display comprising:

a plurality of display elements capable of controlling light within a visible-light spectrum, the display elements being arranged over a display surface of the display; and

one or more receivers arranged with the display elements over the display surface, the one or more receivers being coupled with the display elements and adapted to receive transmitted image information and activate the display elements in response to, and in correspondence with, the image information;

wherein a first display element is associated with a first receiver and a second display element is associated with a second receiver, the first display element being coupled with the second receiver and the second display element being coupled with the first receiver so as to affect a relative brightness of the first and second display elements with respect to each other.

3. A display cell comprising:

a display element capable of controlling light within a visible-light spectrum;

a radio-frequency receiver configured to receive image information associated with an image to be displayed; and

interface circuitry coupled with the receiver and the display element, the interface circuitry being configured to convey signals corresponding to the received image information from the receiver to the display element for display.

4. A display system comprising:

an optically-addressed display including a plurality of display elements adapted to control light within a visible-light spectrum, and a plurality of receivers coupled with the display elements, the receivers being configured to optically receive image information; and

a projector configured to project the image information onto the display, wherein the projector optically addresses the plurality of display elements via the receivers, wherein the projector is a beam projector configured to raster the display and optically communicate the image information to the plurality of display elements via the receivers by repetitively sweeping a beam over the display.

5. The display system of claim 4, wherein the beam projector is an infrared-beam projector configured to project a plurality of infrared frequencies and the receivers are infrared receivers configured to receive one or more of such infrared frequencies.

6. A display system comprising:

an optically-addressed display including a plurality of display elements adapted to control light within a visible-light spectrum, and a plurality of receivers coupled with the display elements, the receivers being configured to optically receive image information; and

a projector configured to project the image information onto the display, wherein the projector optically addresses the plurality of display elements via the receivers,

wherein the projector is configured to transmit information to the receivers via radio frequencies, the receivers are radio-frequency receivers, and the display further includes decode circuitry and location indication circuitry associated with each display element, wherein the decode circuitry and location indication circuitry convert the image information into signals corresponding to visible-spectrum light to be displayed by each display element so as to display an image corresponding to the image information.

7. A method for displaying images comprising:

optically addressing a plurality of display elements disposed on a display surface by projecting image information associated with an image to be displayed, the display elements being capable of controlling light within a visible-light spectrum;

receiving the image information on a surface of the display;

converting the image information into signals corresponding to colors and intensities associated with portions of the image to be displayed; and

displaying the image via the plurality of display elements;

wherein the image information is projected on a surface of the display that is opposite the display surface; and

wherein projecting the image information includes rastering a beam over the display.