DISPLAY CONTROL DEVICE, DISPLAY DEVICE, AND DISPLAY CONTROL METHOD

• US 20100110094A1
• Filed: 03/17/2008
• Published: 05/06/2010
• Est. Priority Date: 03/23/2007
• Status: Abandoned Application

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Hashimoto, Junji, Kamibayashi, Teruhiko
• Application Number:
  US12/450,064
• Publication Number:
  US 20100110094A1
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: B60K 2370/736 the user being the driver
• CPC Class Codes: B60K 2370/739 the user being the passenger
• CPC Class Codes: B60K 35/654 the user being the driver
• CPC Class Codes: B60K 35/656 the user being a passenger
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0439 Pixel structures
• CPC Class Codes: G09G 2300/0842 forming a memory circuit, e.g. a dynamic memory with one capacitor
• CPC Class Codes: G09G 2320/028 by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 2340/10 Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
• 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 2340/125 wherein one of the images is motion video
• CPC Class Codes: G09G 2360/18 Use of a frame buffer in a display terminal, inclusive of the display panel
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• 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
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/324 Colour aspects

Abstract

A display control device includes: a differential circuit that detects a difference in luminance between a first image and a second image in units of pixels; a comparison circuit that detects whether or not the difference in luminance between the first image data and the second image data is equal to or greater than a first threshold value on the basis of the detected differential value in luminance; a controller that interpolates a pixel value, having a luminance smaller than an attention pixel of at least one of the first image and the second image, in said at least one of the first image and the second image, when a difference in luminance between an attention pixel of the first image and an attention pixel of the second image is equal to or greater than a first threshold value; and a liquid crystal panel driving unit 74 that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

Claims

1. A display control device comprising:

comparison portion that compares a luminance of a first image with a luminance of a second image in units of pixel;

interpolation portion that interpolates a pixel value, having a luminance smaller than an attention pixel of at least one of the first image and the second image, in said at least one of the first image and the second image, when a difference in luminance between an attention pixel of the first image and an attention pixel of the second image is equal to or greater than a first threshold value; and

display control portion that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

2. The display control device of claim 1, wherein the interpolation portion directly outputs pixel values of attention pixels of the first image data and the second image data to the display control, when the difference in luminance between the attention pixel of the first image and the attention pixel of the second image is smaller than the first threshold value.

5. The display control device of claim 1, wherein the comparison portion compares the luminance of the first image with the luminance of the second image by comparing a luminance of an RGB signal of the first image with a luminance of an RGB signal of the second image.

6. The display control device of claim 1, wherein the interpolation portion interpolates the pixel value having the luminance smaller than the attention pixel in the first image data and the second image data for every given frames.

3. A display control device comprising:

comparison portion that compares a luminance of a first image with a luminance of a second image on a pixel basis;

interpolation portion that interpolates a black pixel in at least one of the first image and the second image, when a difference in luminance between an attention pixel of the first image and an attention pixel of the second image is equal to or greater than a second threshold value, and that interpolates a pixel value, having a luminance smaller than the attention pixel of at least one of the first image and the second image, in said at least one of the first image and the second image, when the difference in luminance between the attention pixel of the first image and the attention pixel of the second image is equal to or greater than a third threshold value, the third threshold value being smaller than the second threshold value; and

display control portion that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

4. A display control device comprising:

comparison portion that compares a luminance of a first image with a luminance of a second image in units of pixel;

interpolation portion that interpolates a pixel value that is adjusted based on a difference in luminance between an attention pixel of the first image and an attention pixel of the second image in at least one of the first image and the second image; and

display control portion that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

7. A display control device comprising:

comparison portion that compares a luminance of a first image with a luminance of a second image for every block with a given size;

interpolation portion that interpolates a block of an image, having a luminance smaller than a block to be compared with, of at least one of the first image and the second image, in said at least one of the first image and the second image, when a difference in luminance between a block of the first image and a block of the second image is a first threshold value; and

display control portion that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

8. The display control device of claim 7, wherein the comparison portion compares the luminance by determining an average value or a maximum value of each luminance of blocks, to be compared with, of the first image and the second image.

9. The display control device of claim 7, wherein the interpolation portion interpolates the block of the image having the luminance having a smaller than the luminance of the block to be compared with for every given frames of each of the first image and the second image.

10. A display device comprising:

a display that displays a first image and a second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions; and

a display control device comprising;

a comparison portion that compares a luminance of a first image with a luminance of a second image in units of pixel;

an interpolation portion that interpolates a pixel value that is adjusted based on a difference in luminance between an attention pixel of the first image and an attention pixel of the second image in at least one of the first image and the second image; and

a display control portion that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.

11. A display control method comprising:

a step that compares a luminance of a first image with a luminance of a second image in units of pixel;

a step that that interpolates a pixel value, having a luminance smaller than an attention pixel of at least one of the first image and the second image, in said at least one of the first image and the second image, when a difference in luminance between an attention pixel of the first image and an attention pixel of the second image is equal to or greater than a first threshold value; and

a step that displays the first image and the second image on a common display portion such that the first image and the second image are respectively visible from different viewing directions.