Picture/character simultaneously displaying device and head mounted display device

• US 20110050727A1
• Filed: 07/27/2010
• Published: 03/03/2011
• Est. Priority Date: 09/02/2009
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Mukawa, Hiroshi
• Application Number:
  US12/805,341
• Publication Number:
  US 20110050727A1
• Time in Patent Office: Days
• US Class Current: 345/636
• CPC Class Codes: G02B 2027/0112 comprising device for genereting colour display
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0141 characterised by the informative content of the display
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 3/14 of variable focal length
• CPC Class Codes: G02B 6/00 Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2340/12 Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
• CPC Class Codes: G09G 2340/14 Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

A picture/character simultaneously displaying device includes: a picture display device for displaying a picture based on picture data; and a character display device for displaying characters synchronous with the picture based on character data. The character data contains therein text data about characters synchronous with a picture to be displayed, and metadata about characters to be displayed.

Claims

1. A picture/character simultaneously displaying device, comprising:

(a) a picture display device for displaying a picture based on picture data; and

(b) a character display device for displaying characters synchronous with the picture based on character data,

wherein the character data contains therein

(i) text data about characters synchronous with a picture to be displayed, and

(ii) metadata about characters to be displayed.

2. The picture/character simultaneously displaying device according to claim 1, wherein the metadata is luminance data about the characters to be displayed, or chromaticity data about the characters to be displayed, or the luminance data and the chromaticity data.

3. The picture/character simultaneously displaying device according to claim 2, wherein the luminance data composing the metadata is luminance data corresponding to an average luminance in an entire area or a predetermined area of the picture with which the characters are synchronized.

4. The picture/character simultaneously displaying device according to claim 2, wherein the chromaticity data composing the metadata is chromaticity data corresponding to an average chromaticity in an entire area or a predetermined area of the picture with which the characters are synchronized.

5. The picture/character simultaneously displaying device according to claim 1, wherein

said character display device is composed of a head mounted display device including:

(A) an eyeglass type frame mounted to a head of an observer; and

(B) an image display device mounted to said eyeglass type frame for displaying the characters based on the character data.

6. The picture/character simultaneously displaying device according to claim 5, wherein a distance between a picture displayed by said picture display device, and said observer, and a virtual image distance of the characters displayed by said image display device are made equal to each other.

7. The picture/character simultaneously displaying device according to claim 5, wherein

said image display device includes:

(α

) an image forming device;

(β

) an optical system for converting a light emitted from said image forming device into parallel lights; and

(γ

) a semi-transmissive optical device to which a luminous flux obtained as the parallel lights by said optical system is made incident, in which the luminous flux is guided, and from which the luminous flux is emitted.

8. The picture/character simultaneously displaying device according to claim 7, wherein

said optical device includes:

(I) a light guide plate from which an incident light is emitted after being propagated through an inside of said light guide plate by total reflection;

(II) first deflecting means for deflecting the light made incident to said light guide plate in such a way that the light made incident to said light guide plate is totally reflected inside said light guide plate; and

(III) second deflecting means for deflecting the light propagated through the inside of said light guide plate by the total reflection multiple times in order to emit the light propagated through the inside of said light guide plate by the total reflection from said light guide plate.

9. The picture/character simultaneously displaying device according to claim 5, wherein a frame is composed of a front portion disposed in front of said observer, and two temple portions pivotably mounted to both ends of said front portion through hinges.

10. The picture/character simultaneously displaying device according to claim 1, wherein the character data is sent to said character display device in a radio style.

11. The picture/character simultaneously displaying device according to claim 1, wherein

said character display device includes

a character projector for projecting characters based on the character data, and

character display means for displaying the characters projected by said character projector.

12. A head mounted display device, comprising:

(A) a glass type frame mounted to a head portion of an observer; and

(B) an image display device mounted to said glass type frame for displaying characters based on character data,

wherein the character data contains therein

(i) text data about characters relating to an object viewed through said image display device, and

(ii) metadata about characters to be displayed.

13. The head mounted display device according to claim 12, wherein the metadata is luminance data about the characters to be displayed, or chromaticity data about the characters to be displayed, or the luminance data and the chromaticity data.

14. The head mounted display device according to claim 13, wherein the luminance data composing the metadata is luminance data corresponding to a luminance of a predetermined area containing therein said object which is viewed through said image display device.

15. The head mounted display device according to claim 13, wherein the chromaticity data composing the metadata is chromaticity data corresponding to a chromaticity of a predetermined area containing therein said object which is viewed through said image display device.

16. The head mounted display device according to claim 12, wherein a distance between said object and said observer, and a virtual image distance of the characters displayed by said image display device are made equal to each other.

17. The head mounted display device according to claim 12, wherein

said image display device includes:

(α

) an image forming device;

(β

) an optical system for converting a light emitted from said image forming device into parallel lights; and

(γ

) a semi-transmissive optical device to which a luminous flux obtained as the parallel lights by said optical system is made incident, in which the luminous flux is guided, and from which the luminous flux is emitted.

18. The head mounted display device according to claim 17, wherein

said optical device includes:

(I) a light guide plate from which an incident light is emitted after being propagated through an inside of said light guide plate by total reflection;

(II) first deflecting means for deflecting the light made incident to said light guide plate in such a way that the light made incident to said light guide plate is totally reflected inside said light guide plate; and

(III) second deflecting means for deflecting the light propagated through the inside of said light guide plate by the total reflection multiple times in order to emit the light propagated through the inside of said light guide plate by the total reflection from said light guide plate.

19. The head mounted display device according to claim 12, wherein a frame is composed of a front portion disposed in front of said observer, and two temple portions pivotably mounted to both ends of said front portion through hinges.

20. The head mounted display device according to claim 12, wherein the character data is sent to said image display device in a radio style.