Video display apparatus using adjustment images

Patent metadata

Field	Value
Publication number	US-9307216-B2
Application number	US-201514678692-A
Country	US
Kind code	B2
Filing date	Apr 3, 2015
Priority date	May 14, 2013
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

In a video display apparatus A, a controller 9 , while displaying video processed by a video processor 4 on a video display 3 , displays LUTs 45 R, 45 G, and 45 B which are tables of correction data for correcting luminance levels of red, green, and blue respectively. The controller 9 re-calculates and rewrites the correction data based on one adjustment point or two or more adjustment points P 1 and P 2 adjusted by the user.

First claim

What is claimed is:

1. A display apparatus, comprising:
a video processor which adjusts a white balance of video data inputted thereto and then outputs video data;
a display which displays the video data outputted from the video processor;
LUTs which are tables of correction data for individually correcting luminance levels of a plurality of color components in the inputted video data;
an operation unit which accepts operation inputs; and
a controller,
wherein:
the video processor corrects input values indicating luminance levels of the plurality of color components in the inputted video data based on the correction data and outputs corrected video data to the display and generates a plurality of adjustment images corresponding to the plurality of color components based on the LUT's and based on an operation input accepted by the operation unit, and
the controller displays an image based on the corrected video data and the plurality of adjustment images on the display in a simultaneously viewable manner, the controller correcting the correction data based on at least one of the adjustment points accepted by the operation unit.

2. The display apparatus of claim 1 , wherein the controller is further configured to display the image based on the video data and the plurality of adjustment images on a single screen.

3. The display apparatus of claim 1 , wherein the controller is further configured to display the adjustment images while the image based on the video data is being displayed.

4. The display apparatus of claim 1 , wherein the plurality of adjustment images include an adjustment image for red, an adjustment image for green, and an adjustment image for blue.

5. The display apparatus of claim 1 , wherein the plurality of adjustment images are each a graph of which one of a vertical axis and a horizontal axis represents input luminance level and another represents output luminance level.

6. The display apparatus of claim 5 , wherein a number of adjustment points on the graph is set based on an operation input accepted by the operation unit.

7. The display apparatus of claim 5 , wherein output luminance levels at the adjustment points are adjusted based on an operation input accepted by the operation unit.

8. The display apparatus of claim 6 , wherein an interval between the adjustment points is determined by the number of adjustment points.

9. The display apparatus of claim 6 , wherein output luminance levels at the adjustment points are fixed.

10. The display apparatus of claim 4 , wherein the controller is further configured to display an image processed by the video processor, the adjustment image for red, the adjustment image for green, the adjustment image for blue, and an image of a cancel button to be operated to discard an operation, on the display in a simultaneously viewable manner.

11. The display apparatus of claim 4 , wherein the controller is further configured to display an image processed by the video processor, the adjustment image for red, the adjustment image for green, the adjustment image for blue, and an image of a set button to be operated to adopt an operation, on the display in a simultaneously viewable manner.

12. The display apparatus of claim 10 , wherein the controller is further configured to display an image processed by the video processor, the adjustment image for red, the adjustment image for green, the adjustment image for blue, and an image of a set button to be operated to adopt an operation, on the display in a simultaneously viewable manner.

13. The display apparatus of claim 5 , wherein the controller is further configured to display the adjustment image for red, the adjustment image for green, and the adjustment image for blue in a row on the display.

14. The display apparatus of claim 10 , wherein the controller is further configured to display the adjustment image for red, the adjustment image for green, and the adjustment image for blue in a row on the display.

15. The display apparatus of claim 11 , wherein the controller is further configured to display the adjustment image for red, the adjustment image for green, and the adjustment image for blue in a row on the display.

16. The display apparatus of claim 12 , wherein the controller is further configured to display the adjustment image for red, the adjustment image for green, and the adjustment image for blue in a row on the display.

Assignees

• Funai Electric Co

Inventors

• Nakamura Yuya
• Suzuki Masahiro

Classifications

• G06T11/26

  Drawing of charts or graphs · CPC title

• H04N23/88 Primary

  for colour balance, e.g. white-balance circuits or colour temperature control · CPC title

• G06F3/0482

  Interaction with lists of selectable items, e.g. menus · CPC title

• G06F3/04845

  for image manipulation, e.g. dragging, rotation, expansion or change of colour · CPC title

• G09G5/06

  using colour palettes, e.g. look-up tables · CPC title