Method for adjusting brightness, contrast and color in a displaying apparatus

• US 8,159,503 B2
• Filed: 05/06/2002
• Issued: 04/17/2012
• Est. Priority Date: 05/04/2001
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Dong S.
• Primary Examiner(s): Richer, Aaron M
• Application Number:
  US10/138,488
• Publication Number:
  US 20020163527A1
• Time in Patent Office: 3,634 Days
• Field of Search: 345/428, 345/589, 345/591, 345/593, 345/594, 345/617
• US Class Current: 345/617
• CPC Class Codes: G09G 2320/06 Adjustment of display parameters
• CPC Class Codes: G09G 2320/0606 Manual adjustment
• 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 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2320/068 for control of viewing angle adjustment
• CPC Class Codes: G09G 2320/0693 Calibration of display systems
• CPC Class Codes: G09G 2340/04 Changes in size, position or resolution of an image
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: H04N 1/6055 using test pattern analysis
• CPC Class Codes: H04N 17/04 for receivers
• CPC Class Codes: H04N 5/57 Control of contrast or brightness

Abstract

A process that enables the user to select the type of display device to be adjusted. The user adjusts the brightness levels and color levels of the monitor to create a monitor profile for storage. The user then calibrates the selected monitor relative to a peripheral device such as a color printer device by comparing a printed test image to a displayed a gray scale image and a plurality of color images to establish a printer profile. The user then chooses to print an image by incorporating the printer profile or not.

Claims

1. A method for adjusting a color of an image displayed on a liquid crystal display monitor having a screen on which a sample image is displayed, the method comprising:

displaying a first sample image on the screen;

setting a contrast of the liquid crystal display monitor and the first sample image to a minimum value;

adjusting the contrast of the liquid crystal display monitor and the first sample image through a user'"'"'s operation of the liquid crystal display monitor by using a reference image electronically displayed on the liquid crystal display monitor such that the reference image is matched with the first sample image;

obtaining an adjusted contrast value of the sample image to determine a white point of the liquid crystal display monitor;

adjusting the brightness and color of the liquid crystal display monitor to allow a brightness and color of the first sample image to match a brightness and color of the reference image electronically displayed on the liquid crystal display monitor;

obtaining a black point of the monitor based on the determined white point; and

adjusting colors based on the adjusted contrast by adjusting a gamma value.

2. The method as set forth in claim 1, further comprising:

adjusting a viewing angle between the screen and a user.

3. The method as set forth in claim 1, further comprising:

obtaining a color profile of the monitor, the color profile containing the black point and the white point of the monitor;

storing the color profile as a first image color matching file;

displaying a second sample image on the screen, the second sample image comprising a first area surrounded by a second area;

selecting a first one of a blue, green or red color adjustment to adjust a gamma property of a color of the second sample image;

adjusting a color of the first area to match a color of the second area according to the first selected color; and

repeating the selecting and adjusting for the remaining two colors.

4. The method as set forth in claim 3, further comprising

creating and storing a new image color matching file by adding the property of gamma to the first image color matching file, the new image color matching file having stored therein the black point and the white point.

5. The method as set forth in claim 4, further comprising:

displaying a light condition setting window for selecting a light type neighboring the monitor, the light type being selectable from a displayed icon for fluorescent light, a displayed icon for incandescent light and a displayed icon for sunlight.

6. The method as set forth in claim 5, further comprising, after adjusting the brightness to allow a brightness of the first sample image to match a brightness of a reference image, and setting a black point of the monitor,

storing information of the selected light type in the first image color matching file.