DISPLAY SYSTEM FOR WIRELESS PAGER

• US 20010043174A1
• Filed: 04/07/1997
• Published: 11/22/2001
• Est. Priority Date: 10/31/1996
• Status: Active Grant

• Current Assignee: Kopin Corporation
• Original Assignee: Kopin Corporation
• Inventors: POMBO, STEPHEN A., JACOBSEN, JEFFREY, BUMGARDNER, RODNEY, ZAVRACKY, MATTHEW, FAN, JOHN C.C., RICHARD, ALAN
• Granted Patent: US 6,559,825 B2
• Time in Patent Office: Days
• US Class Current: 345/87
• CPC Class Codes: G02B 25/002 Magnifying glasses
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2310/0235 Field-sequential colour display
• CPC Class Codes: G09G 2310/0283 Arrangement of drivers for different directions of scanning
• CPC Class Codes: G09G 2310/063 Waveforms for resetting the whole screen at once
• CPC Class Codes: G09G 2320/0209 Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
• CPC Class Codes: G09G 2320/041 Temperature compensation
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 3/3659 the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
• CPC Class Codes: G09G 3/3688 suitable for active matrices only
• CPC Class Codes: G09G 5/18 Timing circuits for raster scan displays specially adapted for television H04N ; synchronisation between the display unit and other display units, videodisc player G09G5/12
• CPC Class Codes: G09G 5/39 Control of the bit-mapped memory
• CPC Class Codes: G09G 5/391 Resolution modifying circuits, e.g. variable screen formats
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/021 : using combined folding and rotation motions combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0214 : Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0247 : comprising more than two body parts
• CPC Class Codes: H04M 1/0254 : comprising one or a plurality of mechanically detachable modules
• CPC Class Codes: H04M 1/0264 : for a camera module assembly
• CPC Class Codes: H04M 2250/20 : including a rotatable camera
• CPC Class Codes: H04N 7/142 : Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
• CPC Class Codes: H04N 9/3141 : Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14

Abstract

The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED illumination system and cellular communication or processor circuits within a compact housing to provide communication devices such as pagers, telephones, televisions, and hand held computer or card reader devices with a compact high resolution data and/or video display.

Claims

1. A wireless pager comprising:

a housing having a plurality of control elements;

a wireless receiver within the housing that receives data from a source;

a display circuit that is electrically connected to the receiver and generates display data; and

a matrix display mounted to the housing that displays the display data from the display circuit, the matrix display having an array of at least 320 by 240 pixel electrodes.

2. The wireless pager of

claim 1

wherein the housing comprises a first display port for the matrix display and a second display port for a second display.

3. The wireless pager of

claim 2

wherein the matrix display comprises a color liquid crystal display.

4. The wireless pager of

claim 1

wherein the matrix display further comprises an array of transistor circuits formed with single crystal silicon, the array of transistor circuits being bonded to an optically transmissive substrate with an adhesive layer.

5. The wireless pager of

claim 1

wherein the display circuit further comprises a color sequential display circuit.

6. The wireless pager of

claim 1

wherein the matrix display is a color sequential display system including an active matrix liquid crystal display and light emitting diode (LED) backlight.

7. A wireless pager comprising:

a housing having a plurality of control elements;

a wireless receiver within the housing that receives data from a source;

a display circuit connected to the receiver;

a color sequential matrix display mounted to the housing and that displays information from the display circuit.

8. The wireless pager of

claim 7

wherein the housing comprises a first display port for the matrix display and a second display port.

9. The wireless pager of

claim 8

wherein the matrix display comprises an active matrix liquid crystal display.

10. The wireless pager of

claim 7

wherein the matrix display further comprises an array of transistor circuits formed with single crystal silicon, the array of transistor circuits being bonded to an optically transmissive substrate with an adhesive layer.

11. The wireless pager of

claim 7

further comprising a battery to provide power to the color sequential display circuit.

12. The wireless pager of

claim 7

wherein the matrix display is illuminated by an LED backlight.

13. The wireless pager of

claim 7

further comprising a control circuit and a memory circuit.

14. A wireless pager comprising:

a housing having a plurality of control elements;

a wireless receiver within the housing that receives data from a source;

a display circuit connected to the wireless receiver;

a matrix display mounted to the housing and that displays an image from the circuit, the matrix display having at least 75,000 pixel electrodes defining an active area of less than 160 mm².

15. The wireless pager of

claim 14

wherein the housing comprises a first display port for the matrix display and a second display port.

16. The wireless pager of

claim 15

further comprising a battery.

17. The wireless pager of

claim 14

wherein the matrix display further comprises an array of transistor circuits formed with single crystal silicon, the array of transistor circuits being bonded to an optically transmissive substrate with an adhesive layer.

18. The wireless pager of

claim 14

further comprising a color sequential display circuit.

19. The wireless pager of

claim 14

wherein the matrix display is a color sequential display system including an active matrix liquid crystal display and an LED backlight.

20. The wireless pager of

claim 14

further comprising an optical system along an optical path with the display to magnify the image.