IMAGE DISPLAY APPARATUS AND METHOD

• US 20130176353A1
• Filed: 01/09/2013
• Published: 07/11/2013
• Est. Priority Date: 01/10/2012
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Jae-sung, HWANG, Min-cheol, SUNG, Jun-ho, YUN, Sang-un
• Application Number:
  US13/737,058
• Publication Number:
  US 20130176353A1
• Time in Patent Office: Days
• US Class Current: 345/691
• CPC Class Codes: G09G 2310/0235 Field-sequential colour display
• CPC Class Codes: G09G 2310/063 Waveforms for resetting the whole screen at once
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 2320/0261 in the context of movement of objects on the screen or movement of the observer relative to the screen
• CPC Class Codes: G09G 2320/0266 Reduction of sub-frame artefacts
• CPC Class Codes: G09G 2320/062 Adjustment of illumination source parameters
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/2025 the sub-frames having all the same time duration
• CPC Class Codes: G09G 3/3413 Details of control of colour illumination sources

Abstract

An image display apparatus and method are provided. The image display apparatus includes an image analyzing unit which inserts an insertion frame into an image of a color sequence and outputs an image of a color sequence in which the insertion frame is inserted, and changes a position of the insertion frame based on at least one dominant color and outputs an image in which the position of the insertion frame is changed, a display panel which receives the image of the color sequence, in which the insertion frame is inserted, from the image analyzing unit and displays the received image, and a backlight unit which receives information for the color sequence, in which the insertion frame is included, from the image analyzing unit and provides light of a color corresponding to the color sequence, in which the insertion frame is included, according to the received information.

Claims

1. An image display apparatus, comprising:

an image analyzer which receives a unit frame of image data divided into a first color sequence of a red (R) frame, a green (G) frame, and a blue (B) frame, inserts an insertion frame into the first color sequence, outputs a first image of a second color sequence in which the insertion frame is inserted, changes a position of the insertion frame based on at least one dominant color in the unit frame and outputs a second image in which the position of the insertion frame is changed;

a display panel which receives the first image of the second color sequence, in which the insertion frame is inserted, from the image analyzer and displays the received image; and

a backlight unit which receives information for the second color sequence, in which the insertion frame is inserted, from the image analyzer and provides light of a color corresponding to the second color sequence, in which the insertion frame is inserted, according to the received information.

2. The apparatus as claimed in claim 1, wherein the backlight unit is driven to be a black (K) state when the display panel displays the insertion frame.

3. The apparatus as claimed in claim 1, wherein the analyzer changes the position of the insertion frame and arranges the insertion frame at the changed position every period in which the R frame, the G frame, and the B frame are repeated when an input image of the unit frame is an image in which R, G, and B components are uniformly mixed.

4. The apparatus as claimed in claim 3, wherein the display panel divides the image in which the R, G, and B components are uniformly mixed into the R frame, the G frame, and the B frame and displays images in sequences of GRW (white) B, GWRB, and WGRB, and the backlight unit provides light in sequence of GRK (black) B, GKRB, and KGRB.

5. The apparatus as claimed in claim 3, wherein the display panel divides the image in which the R, G, and B components are uniformly mixed into the R frame, the G frame, and the B frame and displays images in sequences of GRK(Black)B, GKRB, and KGRB and the backlight unit provides light in sequence of GRKB, GKRB, and KGRB.

6. The apparatus as claimed in claim 1, wherein, when the dominant color comprises a mixture of two components among the R, G, and B components, the image analyzer changes the position of the insertion frame and arranges the insertion frame at the changed position every period in which two unit frames, which generate the dominant color among the R, G, and B frames, are repeated.

7. The apparatus as claimed in claim 1, wherein, when the dominant color comprises a monochrome, the image analyzer unchanges the position of the insertion frame and outputs the insertion frame at an original position every period in which the monochrome unit frame is repeated.

8. The apparatus as claimed in claim 1, wherein the image analyzer determines the second color sequence in which the insertion frame is inserted according to a user'"'"'s request.

9. The apparatus as claimed in claim 3, wherein the insertion frame is arranged after a unit frame which emphasizes the dominant color.

10. An image display method, comprising:

receiving an input image of a unit frame and detecting at least one dominant color from the received input image of the unit frame;

outputting the input image of the unit frame by inserting an insertion frame into an image of a first color sequence which is divided into red (R), green (G), and blue (B) frames, the outputting comprising outputting the input image of the unit frame by changing a position of the insertion frame inserted into the image of the first color sequence based on the detected at least one dominant color; and

receiving information for a second color sequence in which the insertion frame is inserted and providing light of a color corresponding to the second color sequence in which the insertion frame is inserted according to the received information.

11. The method as claimed in claim 10, wherein, when the insertion frame is a white (W) image, the color of the light corresponding to the white image is black (K).

12. The method as claimed in claim 10, wherein the outputting the input image of the unit frame by changing a position of the insertion frame comprises changing the position of the insertion frame and arranging the insertion frame at the changed position every period in which the R, G, and B frames are repeated when the input image of the unit frame is an image in which the R, G, and B components are uniformly mixed.

13. The method as claimed in claim 12, wherein a display panel divides the image in which the R, G, and B components are uniformly mixed into the R frame, the G frame, and the B frame and displays images in sequences of GRW (white) B, GWRB, and WGRB, and a backlight unit provides light in sequence of GRK (black) B, GKRB, and KGRB.

14. The method as claimed in claim 12, wherein a display panel divides the image in which the R, G, and B components are uniformly mixed into the R frame, the G frame, and the B frame and displays images in sequences of GRK B, GKRB, and KGRB, and a backlight unit provides light in sequence of GRKB, GKRB, and KGRB.

15. The method as claimed in claim 10, wherein the outputting the input image of the unit frame by changing a position of the insertion frame comprises changing the position of the insertion frame and arranging the insertion frame at the changed position every period in which two unit frames, which generate the dominant color among the R, G, and B frames when it is determined that the dominant color comprises a mixture of two components of the R, G, and B components.

16. The method as claimed in claim 10, wherein the outputting the input image of the unit frame by changing a position of the insertion frame comprises unchanging the position of the insertion frame and outputting the insertion frame at an original position every period in which the unit frame of a monochrome is repeated when it is determined that the dominant color comprises the monochrome.

17. The method as claimed in claim 10, wherein a determining of the color sequence in which the insertion frame is inserted is a determining of the color sequence by a user'"'"'s request.

18. The method as claimed in claim 12, wherein the insertion frame is arranged after a unit frame which emphasizes the dominant color.

19. An image display apparatus comprising:

an interface which receives an input image comprising red (R), green (G), and blue (B) color components from an external source;

an image analyzer which analyzes frames of the input image to detect a dominant color and generates a unit frame image of a color sequence according to a result of the detecting;

a timing controller which receives the generated unit frame from the image analyzer, and

a lamp driver which receives information on the color sequence from the image analyzer and controls a backlight unit based on the color sequence information.

20. The apparatus of claim 19, wherein the color sequence information is mode information.