Display device and control method for display device

A technology of a display device and a display part, which is applied to static indicators, cathode ray tube indicators, texture/color and other directions, can solve the problem of low reliability of a simple sensor of the display device, inability to judge the display error of the display device, and color measurement error of the simple sensor, etc. question

Inactive Publication Date: 2013-11-13
NEC DISPLAY SOLUTIONS LTD
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Problems solved by technology

[0004] However, for example, when a reference color (such as three primary colors R, G, and B) is displayed on a display device, and the displayed color is measured by a simple sensor, even if the output of the simple sensor greatly differs from the preset reference value (for example, the X, Y and Z values ​​stipulated in the XYZ colorimetric system of CIE1931), and it is impossible to judge whether the cause is the display error of the display device or the color measurement error of the simple sensor
[0005] This is because the reliability of the display device and simple sensors are low

Method used

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  • Display device and control method for display device
  • Display device and control method for display device
  • Display device and control method for display device

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Embodiment Construction

[0022] Hereinafter, a display device according to an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a schematic block diagram showing the configuration of a liquid crystal display device 100 to which a display device according to an embodiment of the present invention is applied.

[0023] The liquid crystal display device 100 is composed of a control unit 30 and a liquid crystal display unit 40 .

[0024] The control unit 30 displays an image corresponding to the input video signal on the liquid crystal display unit 40 .

[0025] The liquid crystal display unit 40 is provided with a liquid crystal display panel (not shown), and displays an image according to brightness and chromaticity corresponding to an instruction from the control unit 30 .

[0026] In addition, in figure 1 In , the sensor 10 is shown together with the liquid crystal display device 100 . The sensor 10 converts R (red), G (green), and B (blue), which a...

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Abstract

A display device comprising: a reference value storage unit (23) that stores a reference value for a color region, said value being the result of measurement by a reference color sensor of a primary color displayed in a display unit (40); a difference calculation unit (32) that calculates the difference between a measurement value for a color region, said value being the result of measurement by a user of the display device of a primary color displayed in the display unit, using a color sensor used for display device calibration, and a reference value for the color region stored in the reference value storage unit; and an output unit (35) that outputs a warning indicating a color sensor error to the user, when the difference calculated by the difference calculation unit is a pre-set permissible value or greater, during calibration by the user.

Description

technical field [0001] The present invention relates to a display device having a device that detects the chromaticity and brightness of an image displayed on a display unit of the display device using an external sensor and corrects the chromaticity and brightness, and a control method of the display device. Background technique [0002] A simple color sensor (hereinafter, referred to as a simple sensor) is exclusively used as a sensor for detecting the chromaticity and brightness of an image displayed on the display unit for calibrating the display device. The simple sensor is an important component that determines the performance of the display device. [0003] Therefore, it is desirable to warn the user that the colorimetric error in the measured chromaticity and luminance becomes more than constant or changes due to individual differences, aging, etc. of the simple sensor. [0004] However, for example, when displaying a reference color (such as three primary colors R,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/00G09G5/02
CPCG09G5/00G09G5/02G06T11/001G09G3/006G09G3/3413G09G5/026G09G2340/06
Inventor 松井胜之
Owner NEC DISPLAY SOLUTIONS LTD
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