Display system and method for managing display

• US 20010024178A1
• Filed: 03/08/2001
• Published: 09/27/2001
• Est. Priority Date: 03/10/2000
• Status: Abandoned Application

• Current Assignee: NGK Insulators Limited
• Original Assignee: NGK Insulators Limited
• Inventors: Takeuchi, Yukihisa, Nanataki, Tsutomu, Ohwada, Iwao
• Application Number:
  US09/803,091
• Publication Number:
  US 20010024178A1
• Time in Patent Office: Days
• US Class Current: 345/55
• CPC Class Codes: G09G 2300/06 Passive matrix structure, i.e. with direct application of both column and row voltages to the light emitting or modulating elements, other than LCD or OLED
• CPC Class Codes: G09G 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2310/0235 Field-sequential colour display
• CPC Class Codes: G09G 2310/0275 Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
• CPC Class Codes: G09G 2320/0276 for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
• CPC Class Codes: G09G 2320/0285 using tables for spatial correction of display data
• CPC Class Codes: G09G 2320/0633 by amplitude modulation of the brightness of the illumination source
• CPC Class Codes: G09G 2320/0646 Modulation of illumination source brightness and image signal correlated to each other
• CPC Class Codes: G09G 2320/10 Special adaptations of display systems for operation with variable images
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 2360/18 Use of a frame buffer in a display terminal, inclusive of the display panel
• CPC Class Codes: G09G 3/2022 using sub-frames
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/3473 based on light coupled out of a light guide, e.g. due to scattering, by contracting the light guide with external means
• CPC Class Codes: G09G 3/3493 using light modulating elements actuated by a piezoelectric effect

Abstract

A display system comprises an interface circuit for receiving various data from a network to make output to a downstream circuit system; a data separation circuit for making separation from data outputted from the interface circuit into a file (still picture file and moving picture file) concerning image and control data; an output control circuit for making control (control for still picture and control for moving picture) for a display controller, for example, in a unit of display component on the basis of the control data from the data separation circuit; and a compressed file decoder circuit installed upstream from an image data-processing circuit, for expanding the compressed file concerning image to make restoration into still picture data and moving picture data.

Claims

1. A display system comprising:

a display; and

a display area-separating section for separating a display area of said display into a moving picture display area and a still picture display area.

2. The display system according to

claim 1

, wherein:

said display is constructed by arranging a large number of display components; and

said display area-separating section separates said display area of said display into said moving picture display area and said still picture display area on the basis of address data to indicate said display components.

3. The display system according to

claim 1

, wherein said display area-separating section is subjected to collective centralized control by a central facility connected to a network.

4. The display system according to

claim 1

, wherein said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate.

5. A display system comprising:

a display;

a monitoring section for monitoring a power source current of said display; and

a collective failure-diagnosing section for transmitting status information obtained by said monitoring section via a network to a central facility.

6. The display system according to

claim 5

, wherein said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate.

7. A display system comprising:

a display; and

a driving voltage-adjusting section for adjusting a driving voltage supplied to said display to compensate decrease in luminance.

8. The display system according to

claim 7

, wherein said driving voltage-adjusting section is subjected to collective centralized control by a central facility connected to a network.

9. The display system according to

claim 7

, wherein said driving voltage-adjusting section is schedule-managed by the aid of a timer.

10. The display system according to

claim 7

, wherein:

said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate; and

said driving voltage-adjusting section adjusts said driving voltage on the basis of a displacement state of arbitrary one of said actuator elements.

11. The display system according to

claim 7

, wherein said driving voltage-adjusting section adjusts said driving voltage on the basis of a light emission luminance in a predetermined state of said display.

12. The display system according to

claim 11

, wherein said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate.

13. A display system comprising:

a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate;

a preliminary light source;

a current-monitoring section for monitoring a current of said light source; and

a preliminary light source control unit for selectively turning on or turning off said preliminary light source on the basis of information from said current-monitoring section.

14. The display system according to

claim 13

, wherein a part or all of said preliminary light sources are a preliminary light source provided for the purpose of countermeasure for fading.

15. The display system according to

claim 13

, further comprising:

a cooling fan; and

a cooling control unit for selectively driving said cooling fan on the basis of selective turning on of said preliminary light source.

16. A display system comprising:

a display;

a memory for storing luminance correction data for correcting a luminance dispersion of said display; and

a table creation mechanism for rewriting said luminance correction data.

17. The display system according to

claim 16

, wherein said table creation mechanism is subjected to collective centralized control by a central facility connected to a network.

18. The display system according to

claim 16

, wherein said table creation mechanism is schedule-managed by the aid of a timer.

19. The display system according to

claim 16

, wherein:

said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate; and

said table creation mechanism rewrites said luminance correction data on the basis of a displacement state of arbitrary one of said actuator elements.

20. The display system according to

claim 16

, wherein said table creation mechanism rewrites said luminance correction data on the basis of a light emission luminance in a predetermined state of said display.

21. The display system according to

claim 20

, wherein said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate.

22. The display system according to

claim 16

, wherein said table creation mechanism rewrites said luminance correction data also in consideration of color balance adjustment.

23. A display system comprising:

a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate, and wherein said actuator element makes said displacement action in a first direction when a voltage of positive polarization or negative polarization with respect to a reference electric potential is applied; and

a switching means for making changeover to said voltage of positive polarization or said voltage of negative polarization at an arbitrary timing.

24. The display system according to

claim 23

, wherein said switching means is subjected to collective centralized control by a central facility connected to a network.

25. The display system according to

claim 23

, wherein said switching means is schedule-managed by the aid of a timer.

26. A method for managing a display wherein:

said display is constructed by arranging a large number of display components; and

a display area of said display is separated into a moving picture display area and a still picture display area on the basis of address data to indicate said display component supplied from a central facility connected to a network.

27. The method for managing said display according to

claim 26

, wherein said display is a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate.

28. A method for managing a display comprising:

monitoring a power source current of said display; and

transmitting status information obtained by said monitoring to a central facility via a network.

29. A method for managing a display comprising adjusting a driving voltage supplied to said display to compensate decrease in luminance on the basis of collective centralized control by a central facility connected to a network or by schedule management by the aid of a timer.

30. A method for managing a display comprising rewriting luminance correction data in order to correct a luminance distribution of said display on the basis of collective centralized control by a central facility connected to a network or by schedule management by the aid of a timer.

31. A method for managing a display comprising:

using a display comprising an optical guide plate for introducing light from a light source thereinto, and a driving section provided opposingly to a first plate surface of said optical guide plate and arranged with actuator elements of a number corresponding to a large number of picture elements, wherein a screen image corresponding to an image signal is displayed on said optical guide plate by controlling a displacement action of said actuator element in a direction to make contact or separation with respect to said optical guide plate in accordance with an attribute of said image signal to be inputted so that leakage light is controlled at a predetermined portion of said optical guide plate, and wherein said actuator element makes said displacement action in a first direction when a voltage of positive polarization or negative polarization with respect to a reference electric potential is applied; and

making changeover to said voltage of positive polarization or said voltage of negative polarization at an arbitrary timing on the basis of collective centralized control by a central facility connected to a network or by schedule management by the aid of a timer.