Display device for use as a computer monitor, having a printer controller and a pagewidth printhead

• US 7,672,012 B2
• Filed: 08/23/2004
• Issued: 03/02/2010
• Est. Priority Date: 03/20/2003
• Status: Expired due to Fees

• Current Assignee: Memjet Technology Ltd. (Memjet Limited)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia
• Primary Examiner(s): Park; Chan S
• Application Number:
  US10/922,836
• Publication Number:
  US 20050018220A1
• Time in Patent Office: 2,017 Days
• Field of Search: 358/1.8, 358/1.1, 358/3.06, 358/3.07, 358/1.15, 358/1.5, 358/426.14, 358/450, 358/426.13, 347/37, 347/42, 347/104, 347/3, 347/101, 347/108, 382/232, 382242-244, 400/188, 400/693, 400/416, 400/419
• US Class Current: 358/1.8
• CPC Class Codes: B41J 2/01 Ink jet
• CPC Class Codes: B41J 2/14427 Structure of ink jet print heads with thermal bend detached actuators
• CPC Class Codes: B41J 2/175 Ink supply systems ; Circuit parts therefor
• CPC Class Codes: B41J 2002/14435 Moving nozzle made of thermal bend detached actuator
• CPC Class Codes: B41J 3/28 for printing downwardly on flat surfaces, e.g. of books, drawings, boxes , envelopes, e.g. flat-bed ink-jet printers
• CPC Class Codes: B41J 3/445 Printers integrated in other types of apparatus, e.g. printers integrated in cameras
• CPC Class Codes: B41J 3/46 Printing mechanisms combined with apparatus providing a visual indication
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64

Abstract

A display device for use as a computer monitor, the display device comprising:

• • a flat panel display for displaying images from a computer;
  • a printer, the printer including:
    • (a) a printer controller configured to receive print data in a compressed form, decompress the print data, and output dot data based on the decompressed print data;
    • (b) a pagewidth printhead for receiving the dot data and printing onto print media.

Claims

1. A display screen for use as a computer monitor, the screen comprising:

a flat panel display for displaying images;

a printer provided behind a back of said flat panel display as viewed by the user, wherein a print media print path of the printer is in a plane that is substantially parallel to a plane defined by the flat plane display, the printer including;

(a) a printer controller configured to receive print data in a compressed form, decompress the print data, and output dot data based on the decompressed print data; and

(b) a pagewidth printhead for receiving the dot data and printing onto print media;

a first connector for selective engagement with any one of a plurality of external computers to receive therefrom a video signal representative of an image to be displayed on the flat panel display; and

,

a second connector for selective engagement with any one of the plurality of external computers to receive therefrom print data.

2. A display screen according to claim 1, wherein the printer includes at least two pagewidth printheads, the pagewidth printheads being disposed on either side of a path through which print media is fed for printing, thereby enabling substantially simultaneous printing of both sides of the print media.

3. A display screen according to claim 1, wherein the printer controller is configured to halftone at least some of the decompressed print data as part of generating the dot data.

4. A display screen according to claim 3, wherein the printer controller is configured to composite text data with the halftoned data as part of generating the dot data.

5. A display screen according to claim 1, the printer controller being configured to decompress both losslessly and lossily compressed print data.

6. A display screen according to claim 5, the printer controller being configured to halftone the decompressed lossily compressed print data.

7. A display screen according to claim 5, the printer controller being configured to composite the halftoned print data with the decompressed losslessly compressed print data as part of generating the dot data.

8. A display screen according to claim 1, wherein the first and second connectors each include a socket for accepting a data cable.

9. A display screen according to claim 1, wherein the first and second connectors each include a plug for insertion into respective external computer systems.

10. A display screen according to claim 1, wherein the at least one of the first and second connectors is a Universal Synchronous Bus (USB) connector.

11. A display screen according to claim 1, further including a paper feed mechanism for feeding paper to the printhead for printing, the printhead being arranged to print onto the paper.

12. A display screen according to claim 11, wherein the paper feed mechanism is configured to position the paper substantially parallel in at least one direction with respect to a plane defined by the flat panel display.

13. A display screen according to claim 12, wherein the paper feed mechanism is configured to accept a single sheet of paper at a time for printing.

14. A display screen according to claim 12, wherein the paper feed mechanism includes a paper separator for feeding a single sheet of paper to the printhead from a stack of sheets of paper.

15. A display screen according to claim 1, wherein the printer is a process color printer.

16. A display screen according to claim 1, wherein the printer is an inkjet printer.

17. A display screen according to claim 16, wherein the printer has more than 5,000 inkjet nozzles.

18. A display screen according to claim 1, wherein the flat panel display measures at least 14 inches on the diagonal.

19. A display screen according to claim 1, configured such that paper to be printed is fed manually into a paper path that directs the paper from a region adjacent the upper edge of the flat panel display, past the printhead for printing, then out of the device adjacent a lower edge of the flat panel display.

20. A display screen according to claim 1, further including a curved paper guide disposed, when the device is in use, beneath the flat panel display, such that the paper that has been printed is urged horizontally as it exits the device.

21. A display screen according to claim 1, wherein the flat panel display is of one of the following types:

Liquid Crystal Display (LCD);

Organic Light Emitting Diode (OLED)

Field Emission Display (FED)

Plasma Display Panel (PDP).

22. A display screen as claimed in claim 1, the display screen further comprising:

a sheet feeder for receiving at least one sheet of the print media and feeding the at least one sheet to the printhead for printing, wherein the sheet feeder is at least partially fed by gravity.

23. A display screen as claimed in claim 1, the display screen further comprising:

a sheet feeder for feeding print media to the printhead, the device being configured such that standard print media to be printed is supported, immediately prior to commencement of printing, such that at least an edge of the print media is visible above an upper edge of the flat panel display.

24. A display screen as claimed in claim 1, wherein the pagewidth printhead extends across a majority of the width of the display screen.

25. A display screen as claimed in claim 1 wherein the printhead is disposed adjacent a lower portion of the display screen.