Method of remotely adjusting display device and display device

• US 9,047,801 B2
• Filed: 06/06/2002
• Issued: 06/02/2015
• Est. Priority Date: 06/18/2001
• Status: Active Grant

• Current Assignee: Sharp NEC Display Solutions, Ltd.
• Original Assignee: NEC Display Solutions, Ltd. (NEC Corporation)
• Inventors: Tanizoe, Hideki, Iwataka, Hiroki, Tachibana, Miyuki, Arakawa, Yasuhiro, Takamoto, Kazuaki, Katagiri, Takashi
• Primary Examiner(s): Pillai, Namitha
• Application Number:
  US10/162,663
• Publication Number:
  US 20030001829A1
• Time in Patent Office: 4,744 Days
• Field of Search: 715/526, 715/733, 715/746, 715/771, 715/773, 715/866
• US Class Current: 1/1
• CPC Class Codes: G09G 2370/047 using display data channel standard [DDC] communication
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

A method of remotely adjusting a display device is provided which introduces the concept of Pages as a superordinate concept of VCPs known as control or adjustment item codes under current standards, defines the maximum value of the VCP Pages, and controls the VCP Pages from a personal computer, thereby to define and control more VCPs.

Claims

1. An expanded method of adjusting a display device remotely from a computer according to a predetermined standard, said predetermined standard having a control item code group having a maximum number of control item codes, said method comprising the steps of:

expanding the maximum number of control item codes by specifying control item code pages configured such that at least one page includes a control item code group of said predetermined standard and defining a maximum value of the number of pages of said control code pages to increase said control item code pages to said maximum value of the number of pages of said control code pages;

defining at least one command which allows the computer to request the display to send a value corresponding to the page, said page identifying a group of control item codes for adjusting the display device;

(a) specifying at least one of said pages between said computer and said display device; and

(b) adjusting said display device remotely from said computer by using at least one control item code group associated with said at least one specified page.

2. The method according to claim 1, wherein

said step (a) includes the steps of:

(a-1) sending a command for reading said pages from said computer to said display device; and

(a-2) judging that said display device is inadaptable to expansion if no reply to said command is sent from said display device.

3. The method according to claim 1, wherein

said step (a) includes the steps of:

(a-1) sending a command for reading said pages from said computer to said display device; and

(a-2) sending at least one of an upper limit and a lower limit of a variable range of said pages from said display device to said computer.

4. The method according to claim 3, wherein

said step (a) further includes the step of

(a-3) ignoring in said display device a page outside said at least one of said upper and lower limits of said variable range of said pages if said display device is instructed by said computer about said page outside said at least one of said upper and lower limits.

5. The method according to claim 1, wherein

a specific value of said pages is defined for factory-adjustable use,

said method further comprising the step of

(c) resetting said pages to a value different from said specific value in said display device when a default condition occurs.

6. The method according to claim 1, wherein

said step (a) includes the steps of:

(a-1) providing an instruction about a value of said pages from said computer to said display device; and

(a-2) sending said value in reply from said display device to said computer.

7. The method according to claim 1, wherein

said step (a) includes the steps of:

(a-1) sending a command for inquiry about an adjustment item support state including support for said pages from said computer to said display device;

(a-2) sending a reply command from said display device to said computer; and

(a-3) judging that said display device is inadaptable to expansion if said reply command does not include said pages.

8. An expanded method of adjusting a display device remotely from a computer according to a predetermined standard, said predetermined standard having a maximum number of control items organized into a control item code group, said method comprising the steps of:

expanding the maximum number of control item codes by specifying control item code pages configured such that at least one page includes a control item code group of said predetermined standard and defining a maximum value of the number of pages of said control item code pages to increase said control item code pages to said maximum value of the number of pages of said control code pages in such a manner that said control item code group of said predetermined standard is assigned to one of a plurality of pages and other control item code groups are assignable respectively to the remainder of said plurality of pages,

defining at least one command which allows the computer to request the display to send a value corresponding to a page currently set in the display, said page identifying a group of control item codes for adjusting the display device;

(a) specifying at least one of said plurality of pages between said computer and said display device; and

(b) adjusting said display device remotely from said computer by using at least one control item code group assigned to said at least one specified page.

9. A display device which is remotely adjusted from a computer according to an expanded number of control item codes and a predetermined standard, said predetermined standard having a control item code group having a maximum number of control item codes, comprising:

means for expanding the maximum number of control item codes by specifying control item code pages configured such that at least one page includes a control item code group of said predetermined standard and defining a maximum value of the number of pages of said control item code pages to increase said control item code pages to said maximum value of the number of pages of said control code pages, at least one page including said control item code group of said predetermined standard;

means for responding to a command with a value corresponding to a page, in order to allow the computer to recognize which page has been set in said display, said page corresponding to said value identifying a group of control item codes for adjusting the display device;

means for specifying at least one of said pages between said computer and said display device; and

means for adjusting said display device remotely from said computer by using at least one control item code group associated with said at least one specified page.