JPH05176352A - Color display device - Google Patents

Abstract

PURPOSE:To simply adjust hues of colors. CONSTITUTION:This color liquid crystal display device 10 is provided with a color adjusting switch 14 for adjusting colors displayed on a color liquid crystal screen 13. Three primary color patterns 12 consisting of red, green and blue lights are displayed on the screen 13 of the device 10 and t three primary color reference patterns 11 consisting of red, green and blue lights are arranged on the outside of the screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a color display device used for televisions, office automation equipment, home automation and the like.

[0002]

2. Description of the Related Art The hue adjustment of a color display used for televisions, office automation equipment, home automation, etc. is conventionally (A) adjusted to match the color of the video displayed on the screen at that time. Then, the adjustment was made by speculation, or (B) the test pattern was displayed, and the adjustment was made depending on the sense from the mutual relationship of the color patterns. However,
The method (A) is completely guesswork, and there is no guarantee that the method (B) can be adjusted accurately, and it was necessary to consider means and methods for displaying the test pattern. Also, especially,
With color liquid crystal displays, which have been used a lot recently, the hue changes even when adjusting "Bright" or "Contrast", so it may be difficult to make an appropriate adjustment. A method that could be done was desired.

[0003]

SUMMARY OF THE INVENTION An object of the present invention, which has been proposed in view of the above circumstances, is to provide a color display device capable of appropriately and simply adjusting a hue without relying on guesswork or feeling.

[0004]

The present invention as set forth in claim 1, which is proposed to achieve the above object, provides a color display device having an adjusting switch for matching colors displayed on a screen. In addition to displaying the three primary color patterns of red, green, and blue light on the screen,
The three primary color reference patterns of red, green and blue lights are arranged outside the screen. Further, in the present invention according to claim 2, the above-mentioned configuration further includes a color matching mode setting switch, and when the color matching mode setting switch is operated, a red image in addition to a normal image is displayed on the screen.
The configuration is such that three primary color patterns of green and blue lights are combined and displayed. Further, according to the present invention, the three primary color patterns displayed on the screen are automatically erased after a predetermined time has elapsed after the color matching mode setting switch was operated.

[0005]

According to the present invention described in claim 1, the three primary color reference patterns of red, green and blue lights are arranged outside the screen of the color display device, and in addition to the normal image, the screen is
Since the three primary color patterns of red, green, and blue light are combined and displayed, it is convenient that the three primary color patterns can be adjusted appropriately and conveniently by the color matching adjustment switch in accordance with the three primary color reference patterns. According to the present invention of claim 2, when the color matching mode setting switch is operated, the three primary color patterns of red, green and blue lights are combined and displayed on the screen in addition to the normal image. Only when you need a match 3
The primary color pattern can be displayed, and normally, the three primary color patterns do not disturb the eyes. According to the third aspect of the present invention, after the three primary color patterns are displayed on the screen by operating the color matching mode setting switch, the three primary color patterns displayed on the screen are automatically deleted after a predetermined time has elapsed. This is convenient because there is no need to operate the switch to release the color matching mode.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of an external perspective view of a color liquid crystal display device 10 which is an example of a color display device according to the present invention as set forth in claim 1, in which 13 is a color liquid crystal screen and 11 is a color liquid crystal screen 13. The three primary color reference patterns of red, green, and blue light arranged outside, 12 are the three primary color patterns of red, green, and blue light that are combined and displayed on the color liquid crystal screen 13 in addition to the normal image, and 14 is 3 A color matching adjustment switch for adjusting the hue of the primary color pattern 12. FIG. 2 is a diagram showing a configuration example of the color liquid crystal display device 10 described above, and the same parts as those in FIG. 1 are designated by the same reference numerals. In the figure, 24 is a tuner for selecting a receiving channel, amplifying the signal and converting it into an intermediate frequency signal, 23
Is a VIF-amplified video detection unit that amplifies the intermediate frequency signal from the tuner 24 and extracts a video signal, and 22 is a VIF
A luminance / chromaticity signal processing unit that adjusts the video signal from the amplified video detection unit to adjust the brightness and contrast of the image, 2
Reference numeral 5 designates a video output unit for amplifying the video signal from the luminance / chromaticity signal processing unit 22 for driving the color liquid crystal screen 13 and taking out the three primary color signals to correct the variations thereof. An X drive circuit for driving the screen 13 in the horizontal direction, a Y drive circuit for driving the color liquid crystal screen 13 in the vertical direction, and a reference numeral 21 for a three-primary-color pattern output section for outputting light three-primary-color pattern signals. A color matching method of the color liquid crystal display device 10 having such a configuration will be described. On the color liquid crystal screen 13, the three primary color patterns 12 of red, green and blue are always output from the three primary color pattern output section 21, but depending on the adjustment conditions of the luminance / chromaticity signal processing section 22 and the video output section 25. 3 to 3 primary color pattern 12
When there is a deviation from the primary color reference pattern 11, the color adjustment switch 14 adjusts the three primary color pattern 12 to match the three primary color reference pattern 11. The arrangements and shapes of the three primary color patterns 12 and the three primary color reference patterns 11 are not limited to those shown in FIG. Also, the three primary color pattern output unit 21
The three-primary-color pattern signal output from may be photographed and stored in advance for the three-primary-color reference pattern 11 or may be generated electronically.

An example of an external perspective view of a color liquid crystal display device, which is an example of the color display device according to the present invention described in claim 2, is substantially the same as that of FIG. A mode setting switch 31 to be displayed on the screen 13 is further added. Similarly, the configuration example diagram of the color liquid crystal display device according to the present invention according to claim 2 is substantially the same as that of FIG. 2, and the mode setting switch 31 is further added to the three primary color pattern output section 21. Is becoming The feature of the present invention is that by operating the mode setting switch 31, the three primary color patterns 12 can be combined and displayed in addition to the normal image on the color liquid crystal screen 13 and can be erased. This is similar to the description of the present invention according to claim 1.

FIG. 3 is a diagram showing a configuration example of a color liquid crystal display device 40 which is an example of the color display device according to the third aspect of the present invention. The same parts as those in FIGS. Is omitted. In the figure, 42 is a mode setting switch for displaying the three primary color patterns 12 on the color liquid crystal screen 13 by operation, and 41 is activated by the operation of the mode setting switch 42 to output the three primary color patterns from the three primary color pattern output section. It is a timer circuit which is started and resets after a lapse of a predetermined time to stop the output of the three primary color patterns 12. The features of the present invention are:
By operating the mode setting switch 41, the timer circuit 41 is activated and the three primary color pattern output units 21 to 3
The primary color pattern 12 is output and displayed on the color liquid crystal screen 13, and after a predetermined time has passed, the timer circuit 4
1 is reset and the output of the three primary color patterns 12 is stopped, whereby the three primary color patterns 12 displayed on the color liquid crystal screen 13 are automatically erased.
The color matching method is the same as that described in the first aspect of the present invention. 2 and 3, the three-primary-color pattern output unit 21 is connected to the luminance / chromaticity signal processing unit 22, but the three-primary-color pattern output unit 21 is the tuner 24 or the VIF amplified video detection unit. It is also possible to connect to 23. Further, although the color liquid crystal display device is described in this embodiment, the same applies to the color picture tube.

[0009]

According to the present invention as set forth in claim 1, at any time, 3
It is convenient that the three primary color patterns can be adjusted properly and easily with the color adjustment switch in accordance with the primary color reference pattern, and it is always possible to check whether the hue is appropriate. In the present invention according to claim 2, only when color matching is necessary,
3 primary color patterns can be displayed, and normally, the 3 primary color patterns do not disturb the eyes. The present invention according to claim 3 is convenient because a switch operation for canceling the color matching mode after the color matching adjustment is unnecessary.

[Brief description of drawings]

FIG. 1 is an external perspective view of a color liquid crystal display device which is an example of the color display device according to the present invention according to claim 1.

FIG. 2 is a block diagram showing a hardware configuration of the color liquid crystal display device shown in FIG.

FIG. 3 is a block diagram showing a hardware configuration of a color liquid crystal display device which is an example of the color display device according to the present invention according to claim 3.

[Explanation of symbols]

 10 ... Color liquid crystal display device 11 ... 3 primary color reference pattern 12 ... 3 primary color pattern 13 ... Color liquid crystal screen 14 ... Color matching adjustment switch 21 ... 3 primary color pattern output unit 22 ... -Luminance / Chromaticity signal processing unit 23 ... VIF amplified video detection unit 24 ... Tuner 25 ... Video output unit 26 ... X drive circuit 27 ... Y drive circuit 31, 42 ... Mode Setting switch 41 ・ ・ ・ Timer circuit

Claims (3)

[Claims] 1. A color display device having an adjustment switch for color matching the colors displayed on the screen, wherein the screen displays three primary color patterns of red, green and blue lights, and the screen is also displayed. Outside of, red,
A color display device having a structure in which three primary color reference patterns of green and blue lights are arranged. 2. A color matching mode setting switch is further provided, and when the color matching mode setting switch is operated, in addition to a normal image, three primary color patterns of red, green and blue lights are combined and displayed on the screen. The color display device according to claim 1, wherein the color display device is provided. 3. The color display device according to claim 2, wherein the three primary color patterns displayed on the screen are automatically erased after a predetermined time has elapsed after the operation of the color matching mode setting switch.