KR200324018Y1 - Light box for displaying films - Google Patents

Abstract

The present invention improves the readability of an X-ray or a print film by increasing the brightness by using a backlight unit, and enables the brightness of the backlight to be optimally adjusted according to the printing state of the film, and also lying on a desk or standing on a wall. It relates to a light display for film display that can be used on foot.

The light display for film display according to the present invention includes a rectangular box frame 12 having both sides open, a panel 16 fixed and installed on one surface of the box frame 12 and accommodating a film on the surface thereof. And a control switch 14 installed on the frame surface of the box frame 12 to turn on / off the power and to adjust the brightness of the cold cathode fluorescent lamp, and attached to the rear upper end of the box frame 12. Bracket 18 for supporting the inclined at an angle, a support member 20 attached to the bracket 18 and configured to protrude outward, and located behind the panel 16, the control switch 14 Backlight unit 24 whose on / off and brightness are adjusted according to the control of the control panel, an inverter 26 for supplying operating power to the backlight unit 24 and adjusting the brightness, and a rear surface of the inverter 26. Cover to shield the box frame 12 28).

Description

Light box for film display {Light box for displaying films}

The present invention relates to a light display for a film display, more specifically, the brightness is increased by using a backlight unit to improve readability of an X-ray or a print film, and to adjust the brightness of the backlight to an optimal state according to the printing state of the film. This is possible, and it also relates to a film display light box which can be used on a desk, standing or hanging on a wall.

In general, an X-ray photograph is taken in a hospital to determine a patient's disease state. Such photographing is when the face of the human body is photographed to check the state of the teeth as well as the chest, the lower body, the arm and the hand. The original plate printed after the X-ray imaging is read using a light box as a normal film.

In addition to x-ray films in hospitals, the use of films for color printing using a printer on transparent photo paper has become popular. The content displayed on the film in the original state can also be used as a frame or an advertisement board by using a luminaire such as a light box.

1 shows a state of use of a light box 1 for reading a conventional film. As shown, after the light box 1 is installed perpendicular to the wall, the large film 9 or the small film 7 which has been photographed, printed and / or printed is attached to the surface of the light box 1. The power switch 3 is turned on. In accordance with the on state of the switch (3) is installed inside the light box (1) and the fluorescent lamp (4) indicated by the dotted line emits light to provide the back light. Light emitted from the fluorescent lamp 4 passes through the opaque plate 5 and is irradiated to the rear surface of the films 7, 9 so that the films 7, 9 are displayed. When used in a hospital, such a light box may be used by a doctor in charge of identifying a patient's disease state, and in the case of a non-black and white color print disc, the light box may be used as a picture frame or an advertisement board.

Since the conventional light box 1 uses the fluorescent lamp 4 which is normally supplied with commercial power of 220V, the brightness of the light box 1 is not uniform according to the power supply state and / or deterioration of the fluorescent lamp. This is one factor that makes the film difficult to read. In addition, since the brightness of the fluorescent lamp 4 embedded in the light box 1 cannot be adjusted, it is difficult to adjust the appropriate illuminance according to the printing or printing state of the film. In addition, conventionally used light box 1 is inconvenient to attach the film (7, 9) because most of it is installed in the form of a wall hanging, and in the case of a large film (9), but there is no problem in the small film (7) In case of the distance was too difficult to read the film.

The present invention has been made to solve the above problems, the purpose is to improve the readability of the X-ray or printed film by increasing the brightness using the backlight unit, the brightness of the backlight in the optimal state according to the printing state of the film It is also provided with a film display light box that can be adjusted and used to lie on a desk, stand or hang on a wall.

1 is a state diagram used in the conventionally used light box,

2 is a state of use of the light box according to the present invention,

3 is a rear perspective view of the light box according to the present invention;

4 is a rear view of the light box according to the present invention,

5 is an exploded perspective view of the light box according to the present invention,

6 is a block diagram of an inverter according to the present invention,

7 is a side view of another embodiment of a light box of the present invention,

8 is a rear view of the light box of FIG.

※ Explanation of symbols about main part of drawing ※

1,10: Lightbox 3: Switch

4: fluorescent lamp 5: opaque plate

7: small film 9: large film

12: box frame 14: control switch

16: panel 18: bracket

20: support member 22: hook groove

24: backlight unit 26: inverter

28: cover 30: coupling portion

32: connecting arm 34: support stand

262: adapter jack 264: DC / DC converter

266: DC / AC inverter 268: control unit

270: (cold cathode) fluorescent lamp

The light display for film display of the present invention for achieving the above object is a light box for providing illumination for reading a film by medical or print printing, etc., the box frame of both sides open and the box frame A panel fixed to one surface of the panel for accommodating the film on the surface, a control switch installed on the surface of the frame of the box frame to turn on / off power and adjusting the brightness of a cold cathode fluorescent lamp, and the box frame A bracket for supporting the box frame inclined at an angle, a support member attached to the bracket and configured to protrude outward, and located at the rear of the panel, on / off and brightness under control of an adjustment switch And a backlight unit which is controlled to supply operating power to the backlight unit and adjust brightness. And a cover disposed on a rear surface of the inverter to shield the box frame.

Hereinafter, a light display for film display according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing the appearance of the light box 10 according to the present invention. The light box 10 is used to be positioned on a desk or table or the like slightly inclined to facilitate reading. The panel 16 for mounting the film 7 is positioned on the upper surface of the light box 10, and the panel 16 is fixed to the box frame 12.

The box frame 12 has a rectangular shape having both sides open and having a predetermined thickness, and a control switch 14 is installed at a part of the frame. The control switch 14 is used to turn on / off the power of the light box 10 and at the same time adjust the brightness of the illumination (fluorescent lamp) emitted from the rear of the panel 16. For this purpose, the control switch 14 can be configured using a conventional switch-mounted variable resistor.

A bracket for positioning the light box 10 inclined at a predetermined angle is installed at the upper rear portion of the box frame 12. 3 is a rear perspective view of the light box 10, the bracket 18 is formed vertically on the upper end, it can be seen that the support member 20 protrudes from the bracket 18 is supported on the bottom surface. The support member 20 is configured to be foldable and can additionally change the inclination angle by manipulating this.

As shown in FIGS. 2 and 3, the light box 10 of the present invention can be easily attached to the panel 16 after positioning the light box 10 in a convenient state such as a conventional desk or table. To provide.

The present invention also has a structure that allows the light box 10 to be used in the form of a wall, which is described with reference to FIG. 4. 4 is a rear view of the light box 10 of the present invention. As shown, the bracket 18 is formed on the upper end of the light box 10 and the support member 20 is installed on the bracket 18. In the figure, the support member 20 shows a folded state. In addition, the hook groove 22 is formed in the center of the bracket 18. The hook groove 22 is attached to the fixing member, for example, nail or hook member (not shown) to the wall, and then the hook groove 22 is inserted and fixed. By fixing in this way, the light box 10 of the present invention can be used as a wall-hung type.

5 is an exploded perspective view of the light box 10 according to the present invention. The light box 10 may include a box frame 12 having an open shape on both sides thereof, a panel 16 fixed and installed on one surface of the box frame 12 to accommodate a film on the surface thereof, and the box frame. It is installed on the surface of the frame (12) and the power switch on / off and the control switch 14 for adjusting the brightness of the cold cathode fluorescent lamp, and attached to the upper back of the box frame 12 to the box frame 12 Bracket 18 for supporting a predetermined angle inclined, the support member 20 is attached to the surface of the bracket 18 and configured to protrude outward, and located behind the panel 16 and the control switch 14 A backlight unit 24 that is turned on / off and brightness under control, an inverter 26 for supplying operating power to the backlight unit 24 and adjusting brightness, and a box located at the rear of the inverter 26. It consists of a cover 28 that shields the frame 12.

The box frame 12 forms an appearance of the light box 10 and is configured to have a predetermined thickness by using a metal material such as aluminum, or a synthetic resin material, the surface of which is painted. The upper surface of the box frame 12 is provided with a panel 16 for fixing the film. The panel 16 may be configured using a panel made of a material such as translucent plastic.

At the bottom of the panel 16 is a backlight unit 24 for providing illumination. The backlight unit 24 is configured in a module form and includes a reflection plate, a cold cathode fluorescent lamp (CCFL), and a diffusion plate disposed from the bottom to the top. According to the arrangement of the fluorescent lamps, the backlight unit 24 is divided into a direct type or an edge type, and both forms can be used in the present invention. The fluorescent lamp built in the backlight unit 24 is changed in brightness depending on the control state of the control switch (14).

The adjustment switch 14 is installed on the upper side of the box frame 12 and controls the brightness of the backlight unit 24 while controlling the power supplied to the backlight unit 24 on / off. The cover 28 is positioned under the backlight unit 24. The cover 28 is for blocking the back of the light box 10 from the outside.

The control switch 14 is connected to the inverter 26. The inverter 26 is used to apply a high voltage to the fluorescent lamp built in the backlight unit 24. 6 is a block circuit diagram of one embodiment of an inverter 26 conventionally used.

As shown, the inverter driving the CCFL backlight unit receives the DC power through the adapter jack 262 from an AC adapter that converts and supplies AC power to DC power. In the drawings, the adapter is not shown for convenience of description, but it should be understood that DC power is supplied through the adapter jack 262.

The inverter 26 is connected to the adapter jack 262 and the DC / DC converter 264 for outputting the switched signal through the switching regulator, and converts the signal output from the DC / DC converter 264 into an AC signal A DC / AC inverter 266 for boosting and outputting the power, a cold cathode fluorescent lamp 270 driven by the DC / AC inverter 266, and a driving power input to the cold cathode fluorescent lamp 270. A control unit 268 for turning on / off by the control signal of the switch 14 and adjusting the brightness of the cold cathode fluorescent lamp 270 is included.

The operating state of the inverter 26 is as follows. The DC power output from the AC adapter (not shown) to the DC / DC converter 264 through the adapter jack 262 is converted into a pulse voltage by the DC / DC converter 264 made of a switching regulator, and then DC / AC. It is output to the inverter 266. The signal input to the DC / AC inverter 266 is divided into a positive value and a negative value through a transformer in the DC / AC inverter 266, and in a negative case, is output to a cold cathode fluorescent lamp 270 to be cold cathode. The fluorescent lamp 270 is driven and output to the control unit 268 in the case of plus.

The controller 268 controls the inverter 26 on / off according to the signal input from the control switch 14, and simultaneously adjusts the brightness by controlling the DC / DC converter 264 to adjust the current. It is apparent that such brightness adjustment is very useful when the user needs to adjust the brightness of the illumination according to the print state of the film. The inverter 26 shown in FIG. 6 is to be understood as illustrative of the present invention, and it is apparent that the inverter 26 may be configured using other circuits capable of adjusting brightness.

The light box 10 of the present invention may also be used as a stand type by further adding a coupling portion 30, a connecting arm 32 and a support stand 34 to the rear surface. 7 and 8 are other embodiments (side and back views, respectively) of the light box 10 of the present invention, the coupling portion 30 coupled to the surface of the cover 28, the coupling portion 30 and It further includes a pair of connection arms 32 to be connected, and a support stand 34 for engaging and supporting the connection arms 32 and the coupling holes 34a.

Coupling portion 30 is combined with the coupling auxiliary portion formed on the back of the light box 10, for convenience of use, the coupling portion 30 is preferably manufactured to be detachable from the light box 10. The connecting arm 32 is a bar of metal or synthetic resin having sufficient strength to support the light box 10.

Shown on the right side in FIG. 7 is a plan view in a separated state of the support stand 34. As shown, the coupling hole 34a is formed on the surface and is coupled to one side end of the connection arm 32. It is also apparent that the support stand 34 is shown in a circle but may be configured in other forms.

As described above, the coupling part 30, the connecting arm 32, and the support stand 34 are provided on the rear surface of the light box 10 so that the coupling part 30 can be used as the stand type. It can be used by lying on a desk by separating it from the box 10 or hanging on the wall by forming a hook groove 22 on the surface of the bracket 18 as shown in FIG. 4, although not shown in detail in FIGS. 7 and 8.

In the above description of the present invention was used to illustrate the use of a medical film, it is obvious that the light box according to the present invention can be used as a billboard according to the conventional film used.

According to the present invention, the brightness is increased by using the backlight unit, and thus the readability of the X-ray or the print film is improved, and the brightness of the backlight can be adjusted optimally according to the printing state of the film. It can be used on the wall or on the wall.

Claims (3)

A light box that provides illumination for reading a film by medical or printed printing, A rectangular box frame 12 having both sides open, a panel 16 fixed and installed on one surface of the box frame 12 and accommodating a film on the surface, and a frame surface of the box frame 12. It is installed in the control switch 14 for turning on / off the power and adjusting the brightness of the cold cathode fluorescent lamp, and is attached to the upper back of the box frame 12 to support the box frame 12 inclined at an angle. Bracket 18, a support member 20 attached to the bracket 18 and configured to protrude outward, and located behind the panel 16 and on / off and brightness under the control of the control switch 14 The backlight unit 24 is adjusted, the inverter 26 to supply the operating power to the backlight unit 24 and adjust the brightness, and located on the rear of the inverter 26 to shield the box frame 12 Peel comprising a cover 28 Light box for display. The method of claim 1, Light box for a film display, characterized in that the hook groove 22 is further formed in the center of the bracket (18) to hang the light box (10) on the wall. The method according to claim 1 or 2, A coupling part 30 coupled to the surface of the cover 28 on a rear surface of the light box 10, a pair of connection arms 32 connected to the coupling part 30, and the connection arm 32. And a support stand 34 for coupling and supporting by the coupling hole 34a is further provided.