KR200356908Y1 - Display device - Google Patents

Abstract

The present invention performs a function of a mirror in a normal case, but when a person approaches within a predetermined distance by performing a display function, the display device (1) that can maximize the display effect and reduce power loss at the same time will be.

The display device 1 according to the present invention includes a frame 10 in which the front and rear frame members 10a and 10b are integrally formed with each other, and a half mirror fixed to the front side in the frame 10. 20, a display printing plate 30 installed in the center of the frame 10, and a backlight unit 40 fixed to the rear surface of the frame 10 to provide illumination to the display printing plate 30. ), A sensor 50 installed on the front side of the frame 10 to detect a person's approach, and a backlight unit 40 installed on one side of the frame 10 according to a signal of the sensor 50. And a control unit 60 to determine whether to operate, and a power supply unit 70 installed at the other side of the frame 10 to supply power to the backlight unit 40, the sensor 50, and the control unit 60. .

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device, and more particularly, to a display device capable of maximally increasing a display effect by selectively performing a display function and a mirror function based on an input signal from a sensor.

Conventional display apparatuses, which are mainly used as advertisement boards, are formed in a structure in which advertisement prints are inserted in a frame and appropriate lighting is provided to the back side of the print advertisements, thereby achieving an advertisement effect at night as well as at night.

However, in view of the fact that many display devices are installed everywhere, there is a problem in that a conventional display device cannot obtain the maximum advertising effect, and lighting must be used at all times. There is this. In addition, the conventional display device has a problem that it is somewhat difficult to configure a sound device in combination.

Therefore, the present invention performs the function of a mirror in a normal case, but when a person approaches within a predetermined distance by performing a display function and a sound generating function, it is possible to maximize the display and advertising effect and reduce power loss. It is based on the problem to provide a display device.

The problem is a half mirror fixed to the front side in the frame, a display printing plate installed in the center, a backlight unit fixed to the back side, a sensor provided on the front side of the frame, and the sensor It is solved by the display device according to the present invention, including a control unit for determining whether to operate the backlight according to the signal of. In addition, the display device according to the present invention preferably further comprises a sound generating unit for generating a predetermined sound when the sensor detects the approach of the human body.

Hereinafter, a display device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a display device according to an embodiment of the present invention;

Figure 2 is an exploded view of the display device according to an embodiment of the present invention.

3 is a drive block diagram of a display device according to an embodiment of the present invention;

Figure 4a is a use of the display device according to an embodiment of the present invention.

Figure 4b is yet another use of the display device according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: display device

10: frame

10a: front side frame member

10b: rear side frame member

11: side slit

20: half mirror

30: display printed matter

40: backlight unit

41: light source

43: light guide plate

45: reflector

47: diffuser plate

50: sensor

60: control unit

70: power supply

80: sound generator

1 shows a perspective view of a display device 1 according to an embodiment of the present invention, Figure 2 shows an exploded view of the display device 1 according to an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, the display device 1 according to an embodiment of the present invention includes a frame 10 in which the front and rear frame members 10a and 10b are integrally formed with each other. And a half mirror 20 fixed to the front side in the frame 10, a display printing plate 30 installed in the center of the frame 10, and a rear mirror 20 fixed to the back side in the frame 10. A backlight unit 40 for providing illumination to the display printing plate 30, a sensor 50 installed on the front side of the frame 10, and detecting a person's approach, and installed on one side of the frame 10. And a control unit 60 for determining whether the backlight unit 40 is operated according to the signal of the sensor 50, and installed at the other side of the frame 10 to provide the backlight unit 40, the sensor 50, and the control unit. And a power supply unit 70 for supplying power to the 60.

The frame 10 forms a casing of the display device 1 according to an embodiment of the present invention, and the frame 10 is a front side frame member 10a and a back side frame member 10b which are symmetrical to each other. Are coupled to each other, so that the half mirror 20, the display printing plate 30, the fixing portion of the backlight unit 40, the sensor 50, the control unit 60, the power supply unit 70, and the sound generation will be described later. The enclosed space 13 for installing the unit 80 is formed.

In addition, as the front side and rear side frame members 10a and 10b are coupled to each other, it is preferable that side slits 11 for replacing the printing plate 30 are formed on one side of the frame 10.

The half mirror 20 is fixedly installed on the front side frame member 10a in the frame 10. The half mirror 20 is a mirror in a normal case, but when light is projected from the rear side. Is transparent, and is preferably formed by bonding a metal thin film to a glass or plastic substrate with a metal material such as aluminum, chromium or silver.

The fixing of the half mirror 20 onto the front side frame member 10a may be fixedly bonded by double-sided tape, adhesive, or the like, and in some embodiments, into the guide formed on the front side frame member 10a. It may be fitted in place.

As the front side and rear side frame members 10a and 10b are coupled to each other, the display printing plate 30 is fitted into and fixed to the side slits 11 formed in the longitudinal direction at the center of one side of the frame 10. The display printing plate 30 is externally seen through the half mirror 20 which is transparent when the backlight unit 40 is operated. Alternatively, the display printing plate 30 may be formed as an advertisement board printed with advertisement text according to a user's need. The predetermined image may be formed into a printed picture.

The display printing plate 30 is preferably formed of a film material so that the light projected to the front side by the backlight unit 40 can be transmitted.

The backlight unit 40 is fitted and fixed onto the rear side frame member 10b in the frame 10. The backlight unit 40 passes through the display printing plate 30 and the half mirror 20. It serves to provide illumination to the front side of the light source 41 for generating light under the control of the control unit 60 in a state connected to the power supply unit 70 to be described later, and from the light source 41 A light guide plate 43 for uniformizing light over the entire surface of the light guide plate; a reflecting plate 45 positioned immediately behind the light guide plate 43; and reflecting the light exiting to the back side toward the light guide plate 43; and the light guide plate 43 It is preferred to include a diffuser plate 47 for diffusing the light directed to the display printing plate 30 through).

Fixing of the backlight unit 40 onto the rear side frame member 10b may be fixedly bonded by double-sided tape, adhesive, or the like, and in some embodiments, into the guide formed on the rear side frame member 10b. It may be fitted in place.

In addition, although the diffusion plate 47 positioned at the rearmost side of the backlight unit 40 may be directly fixed on the rear side frame member 10b, a predetermined protective plate installed immediately behind the diffusion plate 47 ( Not shown) may be fixed.

The sensor 50 is installed on the front side of the frame 10. The sensor 50 detects whether a person approaches and transmits a corresponding signal to the controller 60, for example, within 3 m in front of the frame 10. It consists of a proximity switch or light sensor that detects an approaching person or object.

The control unit 60 is installed at one side of the frame 10. The control unit 60 determines whether to operate the backlight unit 40 according to a signal input from the sensor 50, for example, a printed circuit. It consists of a substrate.

Here, the control unit 60 operates the backlight unit 40 when the approach of the person is detected by the sensor 50 to change the half mirror 20 to be transparent, so that the display printing plate 30 approaches the person. It is desirable to be configured to be visible to.

The power supply unit 70 is installed at the other side of the frame 10. The power supply unit 70 supplies power to the backlight unit 40, the sensor 50, and the control unit 60, and the power is drawn out. AC power may be provided by a line, or DC power may be provided by a battery or the like housed therein.

Display device 1 according to an embodiment of the present invention preferably further includes a sound generating unit 80 for generating a predetermined sound when the sensor 50 detects a human approach, the sound The generation unit 80 is installed so that the speaker is exposed to the front side of the frame 10, and thus the advertisement or display printing plate corresponding to the advertisement text printed on the display printing plate 30 recorded in advance through the speaker. It serves to provide a voice or melody corresponding to the image printed on 30.

In this case, the sound generator 80 should also be configured to receive power from the power supply 70.

3 shows an operation block diagram of the display device 1 according to an embodiment of the present invention. Hereinafter, an embodiment of the entire operation of the display apparatus 1 according to an embodiment of the present invention will be described in detail with reference to FIG. 3:

When a person does not approach the display device 1 according to an embodiment of the present invention installed in a predetermined place, the sensor 50 transmits a corresponding OFF signal to the controller 60, and the controller 60, when the OFF signal is input from the sensor 50, the backlight unit 40 and the sound generator 80 are not operated.

In this case, since the illumination is not provided from the backlight unit 40 in the display device 1 according to the exemplary embodiment of the present invention, the half mirror 20 acts as a mirror so that the display printing plate 30 is visible to the outside. You won't lose.

When a person approaches the display device 1 according to an embodiment of the present invention, the sensor 50 transmits a corresponding ON signal to the control unit 60, and the control unit 60 includes a sensor ( When the ON signal is input from 50, the backlight unit 40 and the sound generator 80 are operated.

In this case, since the illumination is provided from the backlight unit 40 in the display device 1 according to the exemplary embodiment of the present invention, the half mirror 20 is transparently changed, so that the display printing plate 30 is visible to the outside. Sounds and melodies corresponding to the printed contents of the display printing plate 30 are emitted through the speaker.

According to an embodiment, when a person does not approach the display device 1 according to an embodiment of the present invention, the sensor 50 transmits an ON signal corresponding thereto to the controller 60, When approaching, the sensor 50 may be configured to transmit a corresponding OFF signal to the control unit 60, and thus may be reversed.

4A and 4B show two use embodiments of the display device 1 according to an embodiment of the present invention.

As shown in FIG. 4A, the display apparatus 1 according to an embodiment of the present invention may be used as an advertisement board or an indication board for propaganda advertising. In this case, the display printing plate 30 may include advertisement text or instruction text. And the like is printed, it is preferable that the sound generating unit 80 is configured so that the sound and melody corresponding to the advertisement phrase or instruction phrase is recorded and transmitted.

In addition, the display device 1 according to an embodiment of the present invention can be used as a home picture frame, as shown in Figure 4b, in this case, the display printing plate 30 is printed with an image such as a photo, The sound generating unit 80 is preferably configured to record and transmit the growth and melody of the person in the picture.

Accordingly, the display apparatus according to the present invention as described above performs a mirror function by a half mirror in a normal case, and operates the backlight unit only when the approach of a human body is sensed to make the half mirror transparent. By performing a predetermined sound is generated at the same time to maximize the display and advertising effect and at the same time has an excellent effect to reduce the power loss, especially suitable for billboards or home frames.

Claims (5)

A frame in which the front side and the back side frame members are integrally formed with each other; A half mirror fixed to the front side in the frame; A display printing plate installed at the center in the frame; A backlight unit fixed to a back side in the frame to provide illumination to the display printing plate; A sensor installed at a front side of the frame to sense a person's approach; A control unit installed at one side of the frame to determine whether to operate the backlight unit according to a signal of the sensor; And And a power source installed at the other side of the frame to supply power to the backlight unit, the sensor, and the controller. The method of claim 1, And a sound generator for generating a predetermined sound when the sensor senses a person's approach. The method according to claim 1 or 2, Display side, characterized in that the side slit for replacing the display printing plate is formed on one side of the frame. The method according to claim 1 or 2, The backlight unit includes a light source connected to a power supply unit, a light guide plate for uniforming light from the light source over the entire surface, a reflector plate positioned immediately behind the light guide plate to reflect the light exiting to the back side, and the light guide plate; Display device comprising a diffuser plate for diffusing light directed to the display printing plate through. The method according to claim 1 or 2, And the controller operates the backlight unit when a human approach is detected by a sensor.