Display Device, and Method for Adjusting Display Device

• US 20150116341A1
• Filed: 06/07/2013
• Published: 04/30/2015
• Est. Priority Date: 06/18/2012
• Status: Abandoned Application

• Current Assignee: NEC Display Solutions, Ltd. (NEC Corporation)
• Original Assignee: NEC Display Solutions, Ltd. (NEC Corporation)
• Inventors: Kenmochi, Isamu, Kasuga, Hiroyuki, Shiotani, Yoshihiko
• Application Number:
  US14/408,264
• Publication Number:
  US 20150116341A1
• Time in Patent Office: Days
• US Class Current: 345/536
• CPC Class Codes: G09G 2320/06 Adjustment of display parameters
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 5/399 using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers

Abstract

A display device includes a first storage unit that stores first adjusted values; a second storage unit that stores second adjusted values; and a control unit that determines, while power of the display device is on, whether or not a predetermined specific condition has been set, where if the specific condition has been set, the control unit executes a process of writing the first adjusted values stored in the first storage unit to the second storage unit according to the specific condition so as to switch the adjusted values pertaining to individual units of the display device to the first adjusted values.

Claims

1. A display device comprising:

a first storage unit that stores first adjusted values;

a second storage unit that stores second adjusted values; and

a control unit that determines, while power of the display device is on, whether or not a predetermined specific condition has been set, where if the specific condition has been set, the control unit executes a process of writing the first adjusted values stored in the first storage unit to the second storage unit according to the specific condition so as to switch the adjusted values pertaining to individual units of the display device to the first adjusted values.

2. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not a usage state of the display device has changed; and

the control unit determines whether or not the usage state of the display device has changed and executes the process if it is determined that the usage state of the display device has changed.

3. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not a power saving mode has been effective for a predetermined period of time or longer; and

the control unit determines whether or not the power saving mode has been effective for the predetermined period of time or longer and executes the process if it is determined that the power saving mode has been effective for the predetermined period of time or longer.

4. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not a power saving mode and an externally dark state have been continued for a predetermined period of time or longer; and

the control unit executes the process when determining that the power saving mode and the externally dark state have been continued for the predetermined period of time or longer.

5. The display device in accordance with claim 1, wherein:

the specific condition comprises at least one of whether or not a video signal input into the display device has been disconnected, whether or not a resolution of the video signal has changed, whether or not a video cable to be connected to the display device has been inserted, and whether or not the video cable has been detached; and

the control unit executes the process when at least one of the following conditions is satisfied;

the video signal input into the display device has been disconnected;

the resolution of the video signal has changed;

the video cable to be connected to the display device has been inserted; and

the video cable has been detached.

6. The display device in accordance with claim 1, wherein:

the specific condition comprises at least one of whether or not use of the display device has been finished and whether or not a user of the display device has been switched; and

the control unit executes the process when at least one of the following conditions is satisfied;

the use of the display device has been finished and the user of the display device has been switched.

7. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not a predetermined time has come; and

the control unit executes the process if the predetermined time has come.

8. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not a setting state of the display device has changed; and

the control unit executes the process if the setting state of the display device has changed.

9. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not power supplied to the display device has been disconnected or supply of the power has been started except that a user of the display device has turned off the device; and

the control unit executes the process if the power supplied to the display device has been disconnected or the supply of the power has been started except that the user has turned off the device.

10. The display device in accordance with claim 1, wherein:

the specific condition comprises whether or not the display device has received a command from an external device; and

the control unit executes the process if the display device has received the command from the external device.

11. A method of adjusting a display device, the method comprising:

storing first adjusted values in a first storage unit;

storing second adjusted values in a second storage unit; and

determining while power of the display device is on, whether or not a predetermined specific condition has been set, where if the predetermined specific condition has been set, controlling execution of a process of writing the first adjusted values stored in the first storage unit to the second storage unit according to the predetermined specific condition so as to switch the adjusted values pertaining to individual steps of the display device to the first adjusted values.