KR20060084135A - Diplay device - Google Patents

Abstract

The present invention relates to an imaging apparatus, and more particularly, to an imaging apparatus adapted to be used for light emission of an indicator and a logo of an imaging apparatus using a backlight in the imaging apparatus. As described above, the present invention provides a video device having a fluorescent lamp, the logo device provided on the front of the main body of the video device and the light emitted from the fluorescent lamp from the rear of the logo device to transmit the output to the logo device Provided is an imaging apparatus including an optical transmission device. Therefore, according to the present invention, the power consumption of the video device can be reduced.

Backlight

Description

Video device {Diplay device}

1 is a view showing a general video device

2 is a view for explaining a part of light emission of a backlight unit and an indicator or a logo in a general video apparatus;

3 is a view for explaining an imaging apparatus according to the present invention;

4 is a view for explaining a light emitting part of a backlight unit and an indicator or a logo in an imaging apparatus according to the present invention;

Explanation of symbols on the main parts of the drawings

10: video device 20: display unit

30: indicator mechanism 40: logo mechanism

50, 51, 52: fluorescent lamps 71, 72: optical transmission device

The present invention relates to an imaging apparatus, and more particularly, to an imaging apparatus adapted to be used for light emission of an indicator and a logo of an imaging apparatus using a backlight in the imaging apparatus.                         

CRT (Cathode Ray Tube), one of the video devices (image display devices) generally used, is mainly used for monitors such as TVs, measuring devices, information terminal devices, etc. As a result, it was unable to actively respond to the demand for miniaturization and lightening of electronic products.

Therefore, in the trend of miniaturization and weight reduction of various electronic products, the CRT has a certain limit in weight or size.

It is expected that the CRT will be replaced by a liquid crystal display (LCD) using an electro-optical effect, a plasma display device (PDP) using a gas discharge, and an EL display device using an electroluminescent effect ( Electro Luminescence Display (ELD) and the like, among them, research on liquid crystal display (LCD) is being actively conducted.

In order to replace the CRT, liquid crystal display devices having advantages such as small size, light weight, and low power consumption have been actively developed. Recently, the liquid crystal display device has been developed enough to perform a role as a flat panel display device. As it is used for a monitor of a desktop computer and a large information display device, the demand for a liquid crystal display device is continuously increasing.

Since most of the liquid crystal display devices are light-receiving devices that display an image by controlling the amount of light coming from the outside, a separate light source for irradiating light to the liquid crystal panel, that is, a back light unit is necessary. .

In general, a backlight unit used as a light source of a liquid crystal display device is a method of disposing a cylindrical light emitting lamp, and is divided into an edge method and a direct method.

The edge method is that the lamp unit is installed on the side of the light guide plate for guiding the light, the lamp unit is inserted into both ends of the lamp to emit light, the lamp holder to protect the lamp and the outer peripheral surface of the lamp and one side is It is provided with a lamp reflector plate fitted to the side of the light guide plate to reflect the light emitted from the lamp toward the light guide plate.

The edge method in which the lamp unit is installed on the side of the light guide plate is applied to a relatively small liquid crystal display device such as a monitor of a laptop computer and a desktop computer, and has good uniformity of light and a long service life. It is advantageous to thin the liquid crystal display device.

On the other hand, the direct method began to develop mainly as the size of the liquid crystal display device became larger than 20 inches, and arranged a plurality of lamps in a row on the lower surface of the diffusion plate to direct light directly to the front of the liquid crystal panel. will be.

The direct method is mainly used for a large screen liquid crystal display device requiring high luminance because the light utilization efficiency is higher than that of the edge method.

Fluorescent lamps used in the conventional backlight unit can be largely classified into a cold cathode fluorescent lamp (hereinafter referred to as CCFL) and an external electrode fluorescent lamp (hereinafter referred to as EEFL).

The CCFL installs a cylindrical nickel electrode at both ends of the discharge space inside the glass tube, generates light of high luminance by direct current discharge through the nickel electrode, and attaches a separate capacitor to drive the inverter.                         

Meanwhile, the EEFL seals the glass tube and installs an outer wall electrode on the outer walls of both ends of the glass tube, and the outer wall electrode forms an electric field in the glass tube by capacitive coupling with the glass tube wall, and generates light by gas discharge. It has the advantage that it can be driven by a single inverter by connecting a plurality of EEFL in parallel with a long life compared to the CCFL.

Hereinafter, an imaging apparatus and a backlight unit thereof according to the prior art will be described with reference to the accompanying drawings.

1 is a diagram illustrating a general image device, and FIG. 2 is a view for explaining a part of a backlight unit and light emission in a general image device.

As shown in FIG. 1, a general video device includes a video device main body 10, a display unit 20, an indicator device 30, and a logo device 40.

Here, the display unit 20 is a part for displaying an image, and the indicator mechanism 30 is a character, a symbol, or a state of a power source or the like on the outside of the main body of the video apparatus 10 through, for example, an LED on the rear side such as a power button unit. It is a part that represents, the logo mechanism 40 is a part for displaying the name of the manufacturer through the LED on the back.

In this case, in the case of an image device using a backlight such as an LCD, a plurality of fluorescent lamps 50, 51, 52, as shown in FIG. The first light emitting diode 61 is formed on the rear surface, and the second light emitting diode 62 is formed on the rear surface of the logo structure 40. Of course, the number of fluorescent lamps may be reduced or increased depending on the size of the imaging device.

The fluorescent lamps 50, 51, and 52 have different operating voltages from those of the first and second light emitting diodes 61 and 62, so that power is supplied from the power board to the fluorescent lamp and from the main board to the light emitting diode. . That is, the fluorescent lamp must supply a considerable high voltage, and the light emitting diode supplies a lower voltage (2-10V) than the fluorescent lamp depending on its light emission characteristics.

Therefore, in the conventional video device, there is a problem in that power consumption is increased by supplying power of different voltages to the backlight, the indicator, and the logo portion.

The present invention has been made to solve the above problems, an object of the present invention is to make an image suitable for use in the light emitting of the indicator (icon) and logo (logo) of the video device by using a backlight in the video device To provide a device.

The present invention for achieving the above object in the imaging device having a fluorescent lamp, the logo mechanism provided on the front of the main body of the imaging device, and the light emitted from the fluorescent lamp from the rear of the logo mechanism by transmitting It provides an imaging device comprising an optical transmission mechanism for outputting the logo mechanism.

Here, the optical transmission device is preferably composed of an optical fiber.

The optical transmission device preferably outputs the light of the fluorescent lamp to the rear surface of an indicator device indicating a state of a character, a symbol, or a power source on the outside of the main body of the video apparatus together with the logo device.

In addition, the optical transmission mechanism is preferably configured for each of the logo mechanism and the indicator mechanism.

In this case, the optical transmission device is preferably configured to transmit the light of the fluorescent lamp from the lower side of the fluorescent lamp to the back of the logo fixture and the indicator fixture.

Therefore, the imaging apparatus according to the present invention has the effect of reducing the power consumption of the imaging apparatus by shining the light emitted from the backlight on the apparatus constituting the indicator and the logo.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

3 is a view for explaining an imaging apparatus according to the present invention, Figure 4 is a view for explaining the light emitting portion of the backlight unit and the indicator or logo in the imaging apparatus according to the present invention.

As shown in FIG. 3, the imaging apparatus according to the present invention includes a main body 10, a display unit 20, an indicator apparatus 30, a logo apparatus 40, and a plurality of fluorescent lamps. And 50, 51, 52, and light transmission mechanisms 71, 72.                     

Here, the display unit 20 is a part for displaying an image, and the indicator mechanism 30 receives light from a fluorescent lamp which is a backlight on the outside of the main body of the image apparatus 10, such as a power button unit, for example. It is a part which shows the state of a power supply, etc., The logo mechanism 40 is a part which receives the light from a fluorescent lamp, and displays the name of a manufacturer.

The plurality of fluorescent lamps 50, 51 and 52 are backlights of the LCD.

In addition, the light transmission mechanism (71, 72) is for transmitting the light emitted from the adjacent one of the plurality of fluorescent lamps (50, 51, 52) to the indicator mechanism 30 or the logo mechanism (40) For example, it consists of an optical fiber.

Referring to FIG. 4, the light emitted from the lower portion of the fluorescent lamp 52 is received at one side of the optical transmission device 71 (72), and the indicator device 30 is located at the other side of the optical transmission device 71 (72). ) Or the logo mechanism 40.

Of course, in the case of the indicator mechanism 30, it may be necessary to indicate the state of application of the main power source, etc., as in the prior art may be made to emit light through the LED from the back.

In the imaging apparatus according to the present invention as described above has the following effects.

First, it does not need to supply a separate power supply through the main board can reduce the power consumption of the entire video device.

Second, the cost of the product can be lowered by using optical fiber instead of LED.                     

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the above embodiments, but should be defined by the claims.

Claims (5)

In an imaging device having a fluorescent lamp, A logo mechanism provided on the front of the main body of the video apparatus; And a light transmission mechanism for transmitting the light emitted from the fluorescent lamp from the rear surface of the logo mechanism and outputting the light to the logo mechanism. The method of claim 1, And the optical transmission device is composed of an optical fiber. The method of claim 1, And the optical transmission device outputs the light of the fluorescent lamp to the rear of an indicator device indicating a state of a character, a symbol, or a power source on the outside of the main body of the image device together with the logo device. The method of claim 3, wherein And the optical transmission apparatus is configured for the logo apparatus and the indicator apparatus, respectively. The method of claim 4, wherein And the optical transmission instrument is configured to transmit light of the fluorescent lamp from below the fluorescent lamp to the back surface of the logo instrument and the indicator instrument.

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