KR200312854Y1 - Apparatus for image display - Google Patents

Abstract

The present invention relates to an image display apparatus, and the conventional image display apparatus can only display the advertisement with various effects by controlling only the on and off of the entire light source, and also by using a separate light source, the thickness of the display is thick Not easy, not good aesthetics, there was a problem that can give inconvenience to the passage. In consideration of such problems, the present invention displays an image when power is supplied, and a transparent acrylic plate that can be used as a mirror when the power supply is cut off, and is located on the rear side of the transparent acrylic plate, and a specific image is printed. A printed film coated with organic EL on the image, a printed circuit board on which a power supply pad is printed to apply power to each part of the organic EL from the rear of the printed film, and a rear surface of the printed circuit board According to the present invention, a display control unit for supplying power to the power supply pad of the printed circuit board and having a sensor to cut off the power applied to the printed circuit board according to a user's selection, does not use a light source. By using EL to minimize the thickness of the display, it is easy to install and the installation space can be minimized. And it can be used as a mirror or a display according to the user's operation, it can be expanded its function, it is effective to expand the scope of its application, such as billboards or photo frames.

Description

Image display device {APPARATUS FOR IMAGE DISPLAY}

The present invention relates to an image display apparatus, and more particularly, to an image display apparatus displaying an image or a character in various ways, and allowing the whole or part of the display to be used as a mirror according to a user's selection.

In general, an image display device such as an advertisement board or an electronic picture frame has a light source on the rear side of a printing surface on which an image is printed, and displays an image according to on / off of the light source, or uses a front glass plate to use as a mirror. .

As described in Korean Patent Registration No. 165634, when a person approaches an image display by attaching an infrared sensor, the light source is turned off so that the display surface can be used as a mirror. Applications such as allowing an image such as an advertisement to be displayed through a display have been made.

Hereinafter, the structure of the conventional image display apparatus and its problems will be described in detail with reference to Korean Patent Registration No. 165634.

FIG. 1 is a diagram schematically showing the configuration of a conventional image display apparatus, and is composed of a half mirror 1, a light source 3, and a light source controller 2.

The half mirror 1 is drawn with pictures and characters of advertisement content in advance, and the light source control unit 2 includes an infrared diode 28 and an infrared sensor 23 exposed to the front side of the half mirror 1. .

The light source 3 is implemented as a general lamp and is turned on or off under the control of the light source control unit 2.

In addition, the light source 3 and the light source control unit 2 disposed on the rear surface of the half mirror 1 may be embedded in a box into which light does not enter so that the half mirror may function as a mirror at all times when the light source 3 is not turned on.

Reference numeral 5 is a power cord.

In this state, when a person approaches the propagation plate (half mirror) by a predetermined distance Xm, the infrared sensor 23 detects this and causes the light source controller 2 to light the light source 3. When the light source 3 is turned on, the mirror function of the half mirror 1 disappears and has transparency, so that an advertisement picture or text drawn in advance on the half mirror appears.

Subsequently, as shown in FIG. 2, the conventional light source control unit 2 includes a power supply unit 21, a switching unit (SSR) 22, an infrared sensor 23, a microcomputer 24, a mode selection switch 25, and a timer 26. ), An end gate 27, a transistor Q1, an infrared diode 28, an illuminance sensor 29, and a variable resistor VR, and the power supply unit 21 includes a transformer 21-1 and a rectifier ( 21-2) and regulator 21-3.

First, the power supply unit 21 will be described. The transformer 21-1 receives a commercial AC power supply (110V / 220V AC) through a cord 5 to reduce the voltage to a low voltage, and the rectifier 21-2 receives the reduced AC. The voltage is rectified to make a DC voltage, and the regulator 21-3 is implemented as 7805 to supply a stable DC voltage (eg, + 5V) to the part.

Since the light source 3 receives AC power through the switching unit 22 (SSR, for example, SCR), the light source 3 is turned on to generate light when the semiconductor relay 22 is turned on. It turns off when the relay 22 is turned off.

In addition, the mode selection switch 25 selects the operation mode of the microcomputer 24. For example, in the propagation mode, the light source 3 is turned off in accordance with the approach of a person so that the light is turned off to operate as a propagation board using a half mirror, and other modes. Can always choose to turn on the light source to make the ad appear unattended or to turn off the power at all times so that the half mirror functions only as a mirror.

The infrared sensor 23 is operated by being supplied with DC power, and normally outputs a low (or high), and when an infrared is detected, outputs a high (or low) signal, and the infrared diode 28 outputs a transistor (Q1). When turned on, current flows to generate infrared light.

In this case, since the infrared diode 28 is connected to the DC voltage (+ 5V) through the variable resistor VR, the magnitude of the current flowing when the switching transistor Q1 is turned on is determined according to the resistance value. The size of the infrared light also varies.

Therefore, the size of the infrared rays generated by appropriately adjusting the variable resistance (VR) can be adjusted, thereby adjusting the distance (Xm) approaching from the half mirror.

That is, the sensitivity (sensitivity) of the infrared sensor 23 for detecting the infrared rays reflected from the person is fixed to some extent, so the greater the amount of infrared radiation emitted, the farther the sensing distance.

Then, the microcomputer 24 determines whether it is a propagation mode as shown in (a) of FIG. 3 and outputs a control command (high) to always turn on the infrared diode in the propagation mode (S1, S2). Since there is no need to output an infrared diode extinction command (low) (S3).

Also, as shown in (b) of FIG. 3, the infrared sensor 23 is constantly monitored, and when the infrared sensor 23 is operated, the semiconductor relay on command (high) is outputted, otherwise the off command (low) Outputs

In this case, when the half mirror 1 is used as a transparent window in an open space such as glass (that is, when not forming a dark room by a box), an illuminance sensor 29 is added to the illuminator so that the illuminance falls below a predetermined value. You can make the propaganda function work.

On the other hand, the infrared diode and the infrared sensor 28.23 need to be modulated at an arbitrary frequency f0 so as not to be affected by infrared rays to the outside, and using a timer 26 to simply implement this. The infrared diode 28 is driven through the transistor Q1.

That is, even if the microcomputer 24 outputs a high command to turn on the infrared diode 28, infrared light cannot be generated because the transistor Q1 cannot be turned on unless the timer 26 outputs high.

That is, the transistor Q1 is turned on / off by the input of the logical AND operation 27 of the output of the microcomputer 24 and the output of the timer 26, and as the transistor Q1 is turned on / off, an infrared diode ( 28) turns on / off.

At this time, the timer 26 outputs "high" at intervals (1 / f0) of an arbitrary frequency.

As described above, the conventional image display apparatus detects a person's approach using an infrared sensor, and displays an advertisement when the person approaches, and displays an advertisement when the person does not approach.

However, the conventional image display apparatus as described above automatically detects a person's approach and acts as a mirror or displays an image, thereby reducing the effect of advertisement, which is the main purpose of the image display apparatus.

That is, although the advertisement is continuously displayed to increase the effectiveness of the advertisement, if the proximity of a person is continuously displayed only as a mirror, or if the person is not close to the mirror, the effect of the advertisement is reduced. There was this.

In addition, the conventional image display has a problem that it is not possible to display the advertisement with various effects by controlling only the on and off of the entire light source.

In addition, the conventional image display by using a separate light source, the thickness of the display is not easy to install because of the thickness, not good aesthetics, there was a problem that may cause inconvenience to traffic.

The present invention in view of the above problems is to provide a more various display effect, and to provide an image display device that can be made thin.

Another object of the present invention is to provide an image display device that can be applied as a picture frame as well as advertising, and can perform a desired function by the user's selection.

Another object of the present invention is to provide an image display device that can maximize the exposure of the advertisement, and induce curiosity to those who want to use as a mirror to improve the advertising effect.

1 is a diagram schematically showing the configuration of a conventional image display apparatus.

2 is a block diagram of a conventional light source control unit.

3A and 3B are operation flowcharts according to modes, respectively.

Figure 4 is an internal exploded perspective view of the subject innovation image display device.

5 is a plan view of the printing unit used in the present invention.

6 is a plan view of a printed circuit board used in the present invention.

7 is a detailed block diagram of the display control unit.

8 is a perspective view showing another example of use of the present invention.

* Description of the symbols for the main parts of the drawings *

400: transparent acrylic plate 410: printing

411 to 413: organic EL 420: printed circuit board

430: display control unit 431: acoustic sensor

The present invention for achieving the above object is to provide an image display that can be used as a mirror, using an organic EL, without using a separate light source, and is configured to minimize the thickness of the display There is this.

In addition, the control circuit and the display device is composed of multiple channels to provide a more diversified display method in order to enhance the effect of the advertisement.

An embodiment of the inventive image display device configured as described above will be described in detail with reference to the accompanying drawings.

First, Figure 4 is an exploded perspective view of the internal components of the image display device of the present invention, as shown in the transparent acrylic plate 400, advertising stationery, images, etc. are printed, the printed surface at least two or more sides A printing unit 410 including an organic EL (Electro Luminescence) separated and coated on the divided surface, a printed circuit board 420 for applying a voltage to the separated EL of the printing unit 410, and In accordance with a specified mode, a voltage is supplied to the printed circuit board 420 and displayed in various ways, and a sound is sensed by an acoustic sensor 431 to supply power to the printed circuit board 420 according to a user's control. It is composed of a display control unit 430 for blocking.

The configuration of the present invention configured as described above will be described in more detail.

The transparent acrylic plate 400 is used as a surface on which an image is displayed, and when there is no light inside, it is used as a mirror.

The transparent acrylic plate 400 has the advantages of lighter weight, easier production, and lower cost than the compressed glass used as the display surface used in the conventional image display device, and considering the installation environment, the transparent acrylic plate ( It is also possible to use glass without using 400).

FIG. 5 is an enlarged view of the printing unit 410. As shown in the drawing, the phrase 'advertisement / image' is printed on the printing unit 410 by dividing it up and down. The surroundings are printed in different colors. The printing unit 410 uses a transparent film.

In this state, the organic ELs 411 to 413 that are separated from each other are applied to the periphery of the 'advertisement' and 'image' and the letter.

The organic EL is in the form of an organic powder, and emits light when an electric field is applied.

The organic ELs 411 to 413 that are separated from each other by applying the 'advertisement' and 'image' character parts and the background part around the characters are applied to each of the organic ELs 411 to 413. .

Such a constructive feature enables two backgrounds separated from the 'ad image' to be displayed with different parallax.

That is, when voltage is applied to all organic ELs 411 to 413, the entire printing unit 410 emits light to display the entire advertisement or image printed on the printing unit 410 through the transparent acrylic plate 400. I can see it.

In addition, when the voltage is applied only to the organic EL 411 applied to the 'ad image' portion, the organic EL 412 and 413 of the background portion becomes dark, and only the 'ad image' portion shines, so that the user The part that can be seen through the plate 400 will be able to see only the 'ad image' characters.

Areas other than these letters act as mirror surfaces.

In this way, it is possible to display an image having an effect such as flickering or movement in consideration of the partial light, so as to catch people's eyes and have a more excellent advertising effect.

The configuration of the display control unit 430 to enable this will be described in detail later, and the configuration of the printed circuit board 420 capable of applying a voltage to each of the organic ELs 411 to 413 is as follows. .

FIG. 6 is a plan view of a printed circuit board 420 corresponding to the configuration of the printing unit 410 shown in FIG. 5, and as shown therein, a ground electrode GND is formed around the printed circuit board 420. The power supply voltage electrodes VDD1 to VDD3 for applying the voltage are positioned to contact the upper sides of the coated organic ELs 411 to 413, respectively.

The power supply voltage electrodes VDD1 to VDD3 have a plurality of electrodes (shown in a circle in the drawing) to apply a more uniform voltage, and thus the organic ELs 411 to 413 can be driven with uniform brightness. It becomes possible.

The display control unit 430 illustrated in FIG. 4 includes an acoustic sensor 431 exposed through the window.

The acoustic sensor 431 detects sound and generates and outputs a current according to the size of the sound.

An image display apparatus using the acoustic sensor 431 is an embodiment of the present invention, and other sensors may be employed as necessary.

That is, the ultrasonic sensor may be applied to detect proximity of a person and perform a necessary operation, or a thermal sensor may be used.

The acoustic sensor 431 senses the sound generated by the vibration to generate a current, the larger the sound generates a larger current.

After the acoustic sensor 431 is provided as described above, the user taps a position opposite to the acoustic sensor 431 of the transparent acrylic plate 400 in order to generate a sound.

The sound generated as described above is converted into a current through the acoustic sensor 431, and when the value of the current is larger than a set value, the voltage supplied to the printed circuit board 420 under the control of the display controller 430. All of them can be blocked or only a portion of them can be used as mirrors.

FIG. 7 is a detailed block diagram of the display control unit. As shown in FIG. 7, an acoustic sensor 431 for converting a sound into an electrical signal and an output current of the acoustic sensor 431 are detected. Acoustic control unit 432 for controlling the sensitivity of the acoustic sensor 431 by controlling the variable resistor unit 433, and the current is applied to the acoustic sensor 431 through the variable resistor unit 433, switching after a set time A display controller (1) for controlling switching, a transistor (TR) for applying and controlling a ground voltage to the inverter 435 under the control of the timer 434, and a power supply voltage supplied through the adapter 436. A power switch 437 which can be applied to or cut off inside the 430, and a constant voltage circuit unit 438 which supplies a constant voltage to the microcomputer 439 and the inverter 435 when the power switch 437 is turned on; According to the stored program, each organic EL (411 ~ 41) 3) a microcomputer 439 for outputting a control signal for controlling the voltage supplied to the circuit; and a power supply to the printed circuit board 420 under the control of the microcomputer 439, and the transistor TR The inverter 435 cuts off the supply of power depending on the state.

The above circuit configuration is an embodiment for constructing the present invention, and may be changed depending on the type of sensor, or may vary according to the taste of the person designing the circuit.

That is, the configuration of the display controller 430 is not limited by the configuration as long as the voltage is sequentially applied to the multi-channels according to a designated program, and the power supply can be cut off in whole or in part by the sensor.

The operation of the display control unit 430 configured as described above is as follows.

First, the following operation is limited to the state in which the power switch 437 is turned on.

When no sound is detected by the acoustic sensor 431, the transistor TR maintains a turn-off state.

At this time, the microcomputer 439 operates by receiving a constant voltage by the constant voltage circuit unit 438.

That is, the on-off control signal is output in accordance with the set program.

At this time, the set program controls the shape of the image displayed through the transparent acrylic plate 400, only the upper background is displayed brightly, only the lower background is displayed brightly, and only the 'advertisement image' character is displayed. Specifies the order in which the display is bright and outputs the corresponding control signal.

The above setting is related to the number of channels to control, and when setting to multiple channels, various display methods can be set.

Next, under the control of the microcomputer 439, the inverter 435 receives the voltage of the constant voltage circuit unit 438, switches over to a designated path, and outputs the voltage.

This may display an image by supplying a voltage to any one or more electrodes selected from the power supply voltage electrodes VDD1, VDD2, and VDD3 of the printed circuit board 420.

When the user taps the transparent acrylic plate 400 in such a state, the sound generated by the tapping is detected by the acoustic sensor 431.

At this time, in order to recognize the user's command smoothly, at the position facing the acoustic sensor 431 of the transparent acrylic plate 400, the phrase 'tap to change into a mirror.' By printing an image and the like, the user taps an upper portion of the acoustic sensor 431 to generate sound, thereby preventing a decrease in the sensing sensitivity of the acoustic sensor 431.

Next, when the sound sensor 431 detects sound, the output current of the sound sensor 431 is input to the timer 435 through the sound control unit 432 and the variable resistor unit 433.

At this time, the timer 435 switches the state of the output signal according to the input of the output current, maintains the state for a specified time (5 to 10 seconds), and then recovers the output signal of the previous state.

Next, an operation of the transistor TR that applies or cuts the ground voltage to the inverter 435 according to the output signal of the timer 435 is performed. As a result, the output of the inverter 435 is cut off to generate the timer ( During the set time of 435, all or part of the voltage supplied to the printed circuit board 420 is cut off to operate as a mirror.

That is, when the user wants to use it as a mirror, the user taps a part of the screen of the image display apparatus, and the power supplied to the printed circuit board 420 is cut off by a sensor that senses the sound by the tapping. Since the organic ELs 411 to 413 do not emit light, the transparent acrylic plate 400 can be used as a mirror.

In this case, when the present invention is manufactured and used in a large screen, the power supplied to the full screen is not blocked, and only a part of the present invention can be blocked so that the advertisement can be continuously displayed in an area other than the part used by the user as a mirror.

In this state, when the timer 435 checks the elapse of the set time and the state displayed in the mirror for the set time elapses, the output signal is shifted again and the inverter 435 under the control of the microcomputer 439. ) To supply the set voltage to the printed circuit board 420 normally.

As described above, the present invention image display apparatus can diversify the display method of the advertisement while displaying the advertisement, thereby catching the attention of potential customers, thereby increasing the advertisement effect.

In addition, it can be used as a mirror, and even when used as a mirror has an effect that can increase the advertising effect by allowing the advertisement to continue to be displayed in part according to the intention of the producer.

The above example is the most characteristic embodiment of the present invention, and if the user approaches within a certain distance by using an ultrasonic sensor in addition to the acoustic sensor, it may be configured to detect the approach to use part or all of the screen as a mirror. have.

8 is an application embodiment of the present invention, it is a configuration that can be used as an electronic picture frame to make a small.

That is, a printed circuit board 420 is configured to print a photograph of a family on the printing unit 410, apply an organic EL to the front surface of the printing unit 410, and apply a voltage to the organic EL.

In this state, the picture is usually used as a frame for displaying a picture, and the user can convert the mirror to use if desired.

In other words, if you need to use an electronic photo frame on the desk, it can be used as a mirror if necessary can improve its use efficiency.

Conventional photo frames use fluorescent lights as light sources, and print photographs on films, which are thick due to the use of fluorescent lights and are not used for other functions.

In addition to the above embodiments, another embodiment for achieving the object of the present invention may be manufactured using a light source thinner than a fluorescent lamp while using the printing unit 410.

That is, in order to produce a picture frame or a simple advertisement board, a printing unit 410 on which the advertisement, a photo, etc. is printed is installed on the rear surface of the transparent acrylic plate 400 or the glass plate, and the light is emitted from the rear side of the printing unit 410. It is provided with a light source which can irradiate.

In this case, a light source such as an LCD may be used as it is, and a tube-type light source that transmits light through a tube may be used. The backlight or the tube-type light source is not only thinner than the fluorescent lamps generally used, but also has a direct configuration of the control circuit, which greatly reduces the size of the installation.

At this time, by installing the control circuit for controlling the light source on and off by applying the above-described sensor, it is possible to use as a mirror and a billboard or a mirror and a photo frame.

As described above, the present invention uses an organic EL that does not use a separate light source, thereby minimizing the thickness of the display, thereby facilitating installation and minimizing installation space.

It can be used as a mirror or a display according to the user's operation, it is possible to expand its function, it is possible to expand the scope of its application, such as billboards or photo frames.

In particular, beyond the simplicity of the billboard that generally uses the display of the advertisement, it can be displayed in multiple channels, thereby improving the effect of the advertisement.

In addition, even while being displayed in a mirror, it is possible to display an advertisement on a part, thereby maintaining the continuity of the advertisement display, thereby improving the advertising effect.

Claims (7)

An image is displayed when the power is supplied, and a transparent plate that can be used as a mirror when the power is cut off, Located on the back of the transparent plate, the printing film is a specific image is printed and the organic EL is applied to the image, A printed circuit board on which a power supply pad is printed so as to apply power to each part of the organic EL from the rear surface of the printing film; A display control unit for applying power to the power supply pad of the printed circuit board according to the setting at the back of the printed circuit board and having a sensor to cut off the power applied to the printed circuit board according to the user's selection. Image display device, characterized in that. The image display apparatus of claim 1, wherein the transparent plate is glass or a transparent acrylic plate. The method of claim 1, wherein the organic EL is divided into at least one region of the printed image is applied to each of the separate areas, the power supply pad of the printed circuit board in contact with each of the separate organic EL coating area, An image display apparatus characterized by enabling independent application of power to each organic EL coating area. The sound control unit of claim 1, wherein the display control unit detects an acoustic sensor for converting sound into an electric signal, an output current of the acoustic sensor, and controls a sensitivity of the acoustic sensor by controlling a variable resistor unit according to a user's designation. And a timer for controlling the switching switching after a predetermined time by receiving the current of the acoustic sensor through the variable resistor unit, a transistor for applying and controlling a ground voltage to the inverter under the control of the timer, and a power supply voltage supplied through the adapter. A power switch for controlling the supply of the battery, a constant voltage circuit unit for supplying a constant voltage to the microcomputer and the inverter when the power switch is turned on, and a microcontroller for outputting a control signal for controlling the voltage supplied to the organic EL according to a stored program. Power to the printed circuit board under the control of a computer and the microcomputer. And an inverter which cuts off power supply according to the state of the transistor. The image display apparatus of claim 1, wherein the sensor is an acoustic sensor or an ultrasonic sensor. Image is displayed when the power is supplied, and glass or transparent acrylic plate that can be used as a mirror when the power is cut off, Located on the rear of the glass plate or the transparent acrylic plate, the printing film is a specific image is printed and the organic EL is applied to the image, Thin light source for irradiating light from the back of the printing film, And a display control unit for supplying power to the thin light source and including a sensor to cut off power applied to the light source according to a user's selection. The image display apparatus of claim 6, wherein the thin light source is a backlight or a tube type light source.