Display device and method of controlling the same

Patent metadata

Field	Value
Publication number	US-2016100119-A1
Application number	US-201514809681-A
Country	US
Kind code	A1
Filing date	Jul 27, 2015
Priority date	Oct 6, 2014
Publication date	Apr 7, 2016
Grant date	—

Abstract

A display device and a method of controlling the same. The display device includes a display configured to display an image; and a controller configured to perform image processing on the displayed such that a radius of curvature of the displayed image and a radius of curvature of a visible image are different. The image can be enlarged to a maximum area providing in the display device by applying analogous viewing distance calculation method used in the curved display device with respect to the scaling of the image. Accordingly, the discontinuity of the image can be removed by providing continuous scaling, and the perspective, presence, viewing experience can be enhanced while adaptively correcting the brightness. The display device can display the image having the curvature that the user wants, and thus resemble the curved display device. Further, optical illusion of watching the three-dimensional image can be generated.

First claim

What is claimed is:

1 . A display device, comprising:
a controller configured to receive an image, perform image processing of the received image such that a radius of curvature of the received image and a radius of curvature of a an image to be displayed are different; and a display configured to display the processed image with the radius of curvature different from the received image.

2 . The display device of claim 1 , further comprising:
an input interface configured to receive input of the radius of curvature of the image to be displayed, wherein the controller is further configured to calculate a scaling ratio of the image to be displayed based on the received input radius of curvature.

3 . The display device of claim 2 , wherein the controller is further configured to correct brightness of the image to be displayed based on the calculated scaling ratio of the image to be displayed.

4 . The display device of claim 3 , wherein the controller adjusts the calculated scaling ratio of each pixel in the received image, and corrects the brightness of the received image.

5 . The display device of claim 3 , wherein the controller is configured to brighten a pixel in response to the calculated scaling ratio being larger than a first ratio, and darken the pixel in response to the calculated scaling ratio being smaller than a second ratio.

6 . The display device of claim 2 , wherein the controller calculates the scaling ratio based on an angle of each pixel in the image to be display at a reference position and an angle of said each pixel of the image to be displayed at the reference position, respectively.

7 . The display device of claim 1 , wherein the display comprises one of a flat display panel and a curved display panel.

8 . A display device, comprising:
a display configured to display an image; an input interface configured to receive an input of a radius of curvature; a controller configured to divide a display area of the display into a plurality of areas, and calculate a scaling ratio of each of the plurality of areas based on the input radius of curvature.

9 . The display device of claim 8 , wherein each of the plurality of areas is a pixel of the image.

10 . The display device of claim 9 , wherein the controller is further configured to confirm a reference position spaced apart by a predetermined distance from the display, calculate a visible angle between lines obtained by connecting each of boundary points of each pixel from the reference position, and calculate the scaling ratio of each of the plurality of pixels based on the calculated visible angle.

11 . The display device of claim 10 , wherein the controller is further configured to obtain a visible image corresponding to the input radius of curvature, calculate a reference angle between the lines obtained by connecting each of boundary points of any one pixel of the visible image from the reference position, and calculate the scaling ratio of each of the plurality of pixels based on the reference angle and the visible angle of said each pixel.

12 . The display device of claim 10 , wherein the predetermined distance is a radius corresponding to the input radius of curvature, and the reference position is a position spaced apart by the radius in a horizontal direction from a center position of the display.

13 . The display device of claim 9 , wherein the controller is further configured to correct brightness of said each pixel based on the calculated scaling ratio for said each pixel.

14 . The display device of claim 13 , wherein the controller is further configured to calculate a brightness correction coefficient based on the calculated scaling ratio, and correct the brightness of said each pixel based on the calculated brightness correction coefficient.

15 . The display device of claim 13 , wherein the controller is configured to brighten a pixel in response to the calculated scaling ratio being larger than a first ratio and to darken the pixel in response to the calculated scaling ratio being less than a second ratio.

16 . The display device of claim 8 , wherein the controller is further configured to adjust scaling ratios of the plurality of areas based on an average ratio of the scaling ratios of the plurality of areas.

17 . The display device of claim 8 , wherein the display comprises a flat display panel.

18 . The display device of claim 17 , wherein the controller is configured to control the flat display panel to display a visible image corresponding to the input radius of curvature.

19 . The display device of claim 8 , wherein the display comprises a curved display panel having a predetermined radius of curvature.

20 . The display device of claim 19 , wherein the controller is configured to control the curved display panel to display the visible image having a radius of curvature different from the predetermined radius of curvature of the curved display panel.

21 . A method of controlling a display device, comprising:
receiving an image; receiving input of a radius of curvature; obtaining a scaling ratio of each pixel in the received image based on the input radius of curvature; and displaying a visible image with the obtained scaling ratio.

22 . The method of claim 21 , wherein the obtaining the scaling ratio comprises:
confirming a reference position spaced apart by a constant distance from the display device; calculating a visible angle between lines obtained by connecting each of boundary points of said each pixel from the reference position; and obtaining the scaling ratio of said each pixel based on the calculated visible angle.

23 . The method of claim 22 , further comprising:
obtaining the visible image corresponding to the radius of curvature; calculating a reference angle between the lines obtained by connecting each of boundary points of said each pixel of the visible image from the reference position; and obtaining the scaling ratio of said each pixel based on the reference angle and the visible angle for said each pixel, wherein the predetermined distance is a radius corresponding to the radius of curvature, and the reference position is a position spaced apart by the radius in a horizontal direction from a center position of the display device.

24 . The method of claim 21 , further comprising:
calculating a brightness correction coefficient for said each pixel based on the calculated scaling ratio for said each pixel; and correcting the brightness for said each pixel based on the calculated brightness correction coefficient for said each pixel.

25 . The method of claim 24 , wherein the correcting the brightness for said each pixel comprises:
adjusting the scaling ratios of the plurality of areas based on an average ratio of the obtained scaling ratios of the plurality of areas; and correcting the brightness of said each pixel by applying the brightness correction coefficient to said each pixel in which the scaling ratio is adjusted.

26 . The method of claim 21 , further comprising:
adjusting the scaling ratios of the plurality of areas based on an average ratio of the scaling ratios of the plurality of areas.

27 . The method of claim 21 , wherein the obtaining the scaling ratio comprises controlling a flat display panel to display the visible image corresponding to the input radius of curvature.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Bong-Geun
• Kim Dong Hyun
• Park Kil Soo

Classifications

• H04N5/64

  Constructional details of receivers, e.g. cabinets or dust covers (furniture aspects {of television cabinets} A47B81/06) · CPC title

• H04N21/4318

  by altering the content in the rendering process, e.g. blanking, blurring or masking an image region (image enhancement or restoration in general G06T5/00) · CPC title

• H04N7/0117

  involving conversion of the spatial resolution of the incoming video signal (for graphics images G09G2340/0407) · CPC title

• H04N5/44 Primary

  Receiver circuitry {for the reception of television signals according to analogue transmission standards} (H04N5/14 takes precedence) · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title