JP2005266184A - Display device - Google Patents

Abstract

A display device having a display size larger than that of a conventional display device is provided. At the same time, a display device having a larger display size than that of the conventional display device and having an excellent decorative display effect is provided. A main display portion for displaying information in a main body case opening of the display device; A secondary display unit that performs decorative light emission is accommodated. The opening of the main body case is covered with a translucent cover, and a diffusion cover for diffusing light from the sub display unit is provided inside or outside the cover. When the display screen of the display device is viewed from the front, the entire surface is covered with a light diffusion cover.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for displaying characters, figures, symbols, patterns, etc. by arranging a plurality of light emitters such as LEDs (light emitting diodes) on a printed circuit board and selectively emitting each light emitter. The present invention relates to an apparatus that includes an LED that exclusively performs decorative light emission and has a decorative light emitting function separately from the information display function.

  2. Description of the Related Art Conventionally, there is known an electro-optical display device in which a plurality of LEDs are arranged on a printed circuit board, and characters / images are displayed by light emission by selectively blinking. Many of these devices are installed in busy places such as storefronts and traffic, and are used to light up and display business phrases and catchphrases for attracting customers. The mainstream is a device that is provided with a sub-display unit that performs decorative light emission by various blinks around the display unit so as to draw the attention of a passerby.

  For example, in Patent Document 1 below, a surface plate made of a translucent material is arranged on the front surface of a display unit including a data display unit and a decoration display unit, and a diffraction grating is formed on the surface plate arranged on the front surface of the decoration display unit. A display using a board is disclosed, and the decorative display unit performs light emitting display such that diffraction images are scattered around the light source, thereby increasing the alertness.

Further, Patent Document 2 discloses a display device in which LEDs arranged in a predetermined shape at predetermined intervals are covered with a light diffusing plate, and light from the point-emitting LEDs is arranged in the direction in which the LEDs are arranged by the light diffusing plate. The light is diffused and displayed as a straight line or a curved line.
JP 2003-255866 A JP 2003-280534 A

  In the conventional display devices such as Patent Document 1 and Patent Document 2, the alerting power is increased by devising how to make the decoration display portion shine. All the conventional devices have a structure in which a decoration display unit is provided adjacent to the periphery of an LED matrix for displaying information, and the periphery of the decoration display unit is surrounded by a metal frame. When the display device is viewed from the front, an LED matrix is arranged at a predetermined distance from the inside of the metal frame in a space surrounded by a metal frame (mostly aluminum material) having a predetermined thickness. The decoration display part was provided in the space between the frames. For this reason, the size of the LED matrix has to be made slightly smaller than the outer dimensions of the display device, and the entire size of the display device has not been effectively utilized. In terms of information display, which is the original application of the display device, it goes without saying that the larger screen has better visibility and power, and I want to set the size of the LED matrix to the inner edge of the surrounding metal frame. However, the size is limited by the amount of the decorative display portion.

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a display device having a display size larger than that of the conventional display device. At the same time, an object of the present invention is to provide a display device having a larger display size than the conventional display unit and having an excellent decorative display effect.

  In order to solve the above-mentioned problems, the present invention provides a display device according to claim 1, wherein a plurality of light-emitting elements such as LEDs are flashed on a printed circuit board. A display panel in which light emitters are arranged in a predetermined arrangement shape, each light emitter can be selectively blinked, and the display panel is accommodated and corresponds to an array surface of a plurality of light emitters arranged on the display panel. A display panel that is provided in the main body case, and includes a main body case including the opened opening and a translucent cover that covers the opening of the main body case and allows the light emitter inside the case to be visually recognized from the outside of the main body case. When the light emitter array surface is viewed from the front through the cover, the entire surface including the peripheral edge of the main body case is covered with the cover.

  According to a second aspect of the present invention, there is provided a display device according to the first aspect, wherein the light emitter can be disposed at an arbitrary position in the inner region of the opening provided in the main body case, and the cover that covers the opening is provided. The light emission display is performed using the entire surface.

  The display device according to claim 3 is a display device that emits and displays characters, pictograms, and the like by blinking light emitters such as LEDs, and a plurality of light emitters are arranged in a matrix on a printed circuit board. A main display unit that selectively flashes each light emitter and displays transmission information including characters, pictograms, and the like, and a plurality of light emitting elements arranged in a predetermined shape on a printed circuit board around or near the main display unit A main body case including a sub-display unit that performs decorative light-emitting display with a light emitter, and an opening that accommodates the main display unit and the sub-display unit, and that corresponds to the arrangement surface of a plurality of light emitters arranged in both display units. A translucent cover that covers the opening of the main body case and allows the light emitter inside the case to be visually recognized from the outside of the main body case, and the sub-display unit provided on the inner side or the outer side covered with the cover Covering the illuminant And a light diffusing cover for diffusing the light emitted from the light emitter of the sub display unit, and when the main display unit housed in the main body case and the light emitter array surface of the sub display unit are viewed from the front, the main body case The entire surface including the peripheral edge is covered with the cover and the light diffusion cover.

  According to a fourth aspect of the present invention, in the display device according to the third aspect, the light diffusion cover is detachably fixed to the cover.

  Further, the display device according to claim 5 is the display device according to claim 3 or 4, wherein the light emitter can be arranged at an arbitrary position in the inner region of the opening provided in the main body case. The light emission display is performed using the entire surface of the cover and the light diffusion cover covering the part.

  The display device according to claim 6 is the display device according to any one of claims 1 to 5, wherein the cover covering the opening or the light diffusion cover is parallel to the light emitter array surface in the main body case. It is characterized by covering continuously from a flat surface to a vertical surface.

  According to the first aspect of the present invention, the display panel in which the LEDs are arranged is housed in the main body case of the display device, and the opening for radiating light from the display panel to the outside of the main body case when performing light emission display It was provided in the case, and the entire surface with the opening of the main body case was covered with a translucent cover. Therefore, the size of the opening can be expanded as close as possible to the periphery of the main unit case, and the entire surface including the periphery can be covered with a translucent cover for light-emitting display. It can be used as a display screen, and the size of the main body case can be utilized to the maximum extent for display.

  According to the invention of claim 2, the LED can be arranged near the periphery of the main body case by enabling the LED to be arranged at an arbitrary position of the opening that is widened to the vicinity of the peripheral edge of the display device main body case. In a conventional apparatus, a portion corresponding to a metal frame that does not contribute to display can be used as a display screen.

  According to the third aspect of the present invention, the main display unit in which the LEDs are arranged in a matrix and the sub display unit that is provided around the main display unit and performs the decorative light emission are housed in the main body case. While covering the opening corresponding to the LED array surface of the display unit, the entire surface of the main body case with the opening is covered with a translucent cover, and further, the LED of the sub display unit is covered with a light diffusion cover. . Therefore, by providing a sub display part around the main display part and arranging the LED of the sub display part near the periphery of the main body case, conventionally, decorative display is performed at a position corresponding to the metal frame around the main body case. In the conventional apparatus, all of the portion corresponding to the display screen (opening) including the decoration display portion can be used as the information display screen.

  According to invention of Claim 4, the light-diffusion cover was fixed to the translucent cover which covers the whole opening part of a main body case so that attachment or detachment was possible. Accordingly, a plurality of types of light diffusing covers having different light diffusing effects, appearance designs, colors, and the like can be prepared and replaced as appropriate according to preference.

  According to the fifth aspect of the present invention, the LED of the main display unit or the sub display unit can be arranged at an arbitrary position of the opening that extends to the vicinity of the periphery of the display device main body case. The LED of the sub display part can be arranged, and the peripheral part of the main body case can be effectively used as a screen for decorative display.

  According to the display device of claim 6, in covering the surface with the opening of the main body case with the cover and the light diffusing cover, the surface is continuously extended from the plane parallel to the LED array surface on the display panel. I covered it. Therefore, it is possible to form a display screen having a shape that wraps around from the surface directly facing the LED array surface to the upper surface, both side surfaces, and the lower surface of the display device, and illuminates by illuminating the frame of the display device that has never existed before. A novel three-dimensional display screen can be configured.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.

  1A and 1B are external explanatory views showing a first embodiment. FIG. 1A shows an external appearance of a display device, and FIG. 1B shows a main body case among members constituting the display device. Reference numeral 1 denotes a main body case, which surrounds the upper, lower, left, and right sides of the display device main body in a square shape, and is open with the front-rear direction as an opening. A translucent cover 2 includes a rectangular transparent window corresponding to the shape of the opening of the main body case 1 and is attached to the main body case 1 while covering the entire opening. A light diffusing cover 3 surrounds the periphery of the transparent window of the cover 2 along the outer surface of the main body case 1 and is attached to the main body case 1 together with the cover 2. The diffusion cover 3 is made of a light-transmitting material like the cover 2 and is subjected to surface processing such as a lens structure or a prism structure that diffuses the light of the LED irradiated from the inside of the main body case. The cover 2 and the diffusion cover 3 surrounding the periphery of the transparent window of the cover 2 constitute a display screen as a display device. A display panel in which a plurality of LEDs are arranged on a printed circuit board is provided in the main body case 1, and the LEDs arranged on the display panel are fixed inside the case in a positional relationship from the opening of the main body case 1 to the outside of the case. Has been. LEDs are arranged in a dot matrix according to the shape of the transparent window at a position corresponding to the transparent window back side of the cover 2, and a plurality of dots are arranged around the dot matrix along the frame shape of the diffusion cover at a position corresponding to the back side of the diffusion cover 3. LEDs are arranged at predetermined intervals. In FIG. 1, both the cover 2 and the diffusion cover 3 are provided with reference numerals only on one side of the main body case 1, but the cover 2 and the diffusion cover 3 are provided on the surface that does not appear in FIG. Therefore, the display device as a whole can display in both directions.

  Next, the internal structure of the display device will be described with reference to FIG. FIG. 2 shows an AA cross section of FIG. Reference numeral 4 denotes a fixed frame having a substantially U-shaped cross section, and is fixed to the inside of the main body case 1 with the open side of the U-shape facing from above and below. Reference numeral 5 denotes a control unit that controls the operation of the entire display, and is housed in a space formed inside the U-shape of the fixed frame 4 and fixed to the frame. Reference numeral 6 denotes an LED panel, which includes a main display portion 6a in which LEDs are arranged in a dot matrix on a printed wiring board, and a sub display portion 6b in which LEDs are arranged at predetermined intervals so as to surround the periphery of the main display portion. doing. As shown in the figure, the positions of the LEDs constituting the main display portion 6 a and the sub display portion 6 b are aligned with the opening of the main body case 1, and the LED panel 6 has the drive board 7 mounted on the stud bolt erected from the fixed frame 4. It is fixed while interposing. The control unit 5, the drive board 7, and the LED panel 6 are also electrically connected in this order, and a display control signal is output to the drive board 7 in accordance with a program registered in advance in the control unit 5. LED blinking signals are output to the main display unit 6a and the sub display unit 6b, respectively.

  The cover 2 covering the opening has an uneven shape that separates the main display portion 6a and the sub display portion 6b. The LED of the main display section is formed in the inner region surrounded by the tunnel-shaped convex portion so as to cover the LED of the sub-display section located in the vicinity of the peripheral edge of the main body case so as to cover the tunnel shape. A transparent window that rises in one step on a plateau is formed so as to cover a plane at a predetermined distance in the height direction from the top of the head. The cover 2 is made of a transparent material such as acrylic, and is an integrally configured cover in which the concave and convex shapes are continuously formed. A rib portion formed on the outer side of the tunnel-shaped convex portion is fixed to a fixed frame. 4 and the main body case 1 are fixed by being sandwiched between them.

  The diffusion cover 3 is attached to the surface side of the tunnel-shaped convex portion formed on the cover 2 so as to overlap with each other while forming a space between the cover 2 and the diffusion cover 3. One edge on which the rib is formed is sandwiched and fixed between the fixed frame 4 and the periphery of the main body case 1, and the other edge is formed at the boundary between the tunnel-like convex part and the plate-like convex part formed on the cover 2. It is held in a state of abutting against the recessed portion. By utilizing the concave portion of the cover 2 and abutting the edge of the diffusion cover while sandwiching the waterproof seal member, the diffusion cover 3 can be more securely fixed and held. The diffusion cover 3 is also made of a transparent material like the cover 2, and the light from the light source such as lens processing or prism processing is diffused in multiple directions on the inner surface or the outer surface so as to diffuse the light emitted from the LED of the sub display portion 6b. Processing to refract is applied. In the figure, a plurality of sawtooth-shaped grooves are formed on the inner surface, and by performing such light diffusion processing, when decorative light emission display is performed on the sub-display portion 6b, it is substantially perpendicular to the printed circuit board surface. The LED light emitted in the direction is refracted by the saw-tooth-shaped groove, and the light of the LED, which is originally viewed in the form of dots at a narrow viewing angle, spreads over a wide area on the outer surface of the diffusion cover 3 and is viewed. As a result, it is possible to obtain a visual effect as if the entire frame of the display device emits light and performs decorative light emission. The diffusion cover 3 can be removed by loosening the decorative screw 8 and floating the main body case 1 from the fixed frame 4, and can be replaced with another diffusion cover. Therefore, it is possible to use different types of covers, such as changing the type of light diffusing process, the shape and design of the entire diffusing cover, or coloring while maintaining translucency, and replacing them as needed. .

Next, a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about the structure similar to 1st Example, and the description is abbreviate | omitted.
The display device of the second embodiment has a configuration in which the main body case 1 is covered with a diffusion cover 3, and FIG. 3 shows a cross section thereof. The main body case 1 is covered with a diffusion cover 3 having a substantially U-shaped cross section that covers both the sub-display portions 6b on both the front and rear surfaces, and the diffusion cover is fixed to the main body case 1 from the outer surface using the decorative plate 9 and the decorative screws 8. Receiving portions into which the end portions of the cover 2 are fitted are provided at both ends of the diffusion cover, and the cover 2 is held above the main display portion 6a to constitute a transparent window of the display screen. The diffusion cover 3 is subjected to light diffusion processing in the same manner as in the first embodiment, so that the light of the sub-display unit 6b can be seen from a wide range outside the diffusion cover 3, and covers the upper and lower side surfaces of the display device. It is possible to obtain a visual effect as if the entire frame is emitting light and performing decorative light emission.

Next, a third embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about the structure similar to the said 1st, 2nd Example, and the description is abbreviate | omitted.
The display device of the third embodiment has a configuration in which the diffusion cover 3 is disposed in the inner space covered with the cover 2, and FIG. 4 shows a cross section thereof. The main display portion 6a and the sub display portion 6b are covered with a cover 2 made of a single member, the surface covering the sub display portion 6b is bulged in a convex shape, and the main display portion 6a is lowered by one step from the convex surface. A covering flat surface is formed. A diffusion cover 3 that covers the LEDs of the sub-display portion 6b in a substantially tunnel shape is provided on the inner side of the cover 2 that bulges in a convex shape. These two types of covers have their rib portions fixed to the fixed frame 4. And is fixed by being sandwiched between the peripheral edges of the main body case 1. In this embodiment, the display screen is made thin so that the periphery of the main body case 1 is not conspicuous when viewed from the front, and the cover 2 has a convex shape along the LED array of the sub display portion 6b. Thus, the impression of a frame formed by the convex portion of the cover 2 extending to both the upper and lower side surfaces in the entire display device is given. Then, by driving the display of the sub display unit 6b, it is possible to obtain a visual effect as if the light of the sub display unit is diffused by the diffusion cover 3 and the entire frame emits decorative light.

BRIEF DESCRIPTION OF THE DRAWINGS It is external appearance explanatory drawing which shows the display apparatus which concerns on 1st Example of this invention. It is a cross-sectional explanatory drawing which shows the internal structure of the display apparatus which concerns on 1st Example. It is sectional explanatory drawing which shows the internal structure of the display apparatus which concerns on 2nd Example. It is sectional explanatory drawing which shows the internal structure of the display apparatus which concerns on 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 2 Cover 3 Diffusion cover 4 Fixed frame 5 Control part 6 LED panel 6a Main display part 6b Sub display part 7 Drive board 8 Makeup screw 9 Makeup plate

Claims (6)

In a display device that emits and displays characters, pictograms, etc. by blinking a light emitter such as an LED,
A display panel in which a plurality of light emitters are arranged in a predetermined arrangement shape on a printed circuit board, and each light emitter can be selectively blinked,
A main body case that houses the display panel and includes an opening corresponding to an array surface of a plurality of light emitters arranged on the display panel;
A light-transmitting cover that covers the opening of the main body case and allows the light emitter inside the case to be visually recognized from the outside of the main body case;
A display device characterized in that when the light emitter array surface of the display panel housed in the main body case is viewed from the front through the cover, the entire surface including the periphery of the main body case is covered with the cover.   The display device according to claim 1, wherein a light emitter can be disposed at an arbitrary position in the opening inner region provided in the main body case, and light emission display is performed using the entire surface of the cover covering the opening. A display device. In a display device that emits and displays characters, pictograms, etc. by blinking a light emitter such as an LED,
A plurality of light emitters arranged in a matrix on a printed circuit board, each light emitter selectively flashing and displaying transmission information including characters, pictograms, and the like;
A sub-display unit that is provided around or in the vicinity of the main display unit and performs decorative light-emitting display with a plurality of light emitters arranged in a predetermined shape on a printed circuit board;
A main body case that houses the main display portion and the sub display portion, and includes an opening corresponding to the arrangement surface of the plurality of light emitters arranged in both the display portions,
A light-transmitting cover that covers the opening of the main body case and allows the light emitter inside the case to be visually recognized from the outside of the main body case;
A light diffusion cover for diffusing the light emitted from the light emitting body of the sub display unit, while covering the light emitting body of the sub display unit provided inside or outside covered with the cover,
A display in which the entire surface including the periphery of the main body case is covered with the cover and the light diffusing cover when the light emitter array surfaces of the main display unit and the sub display unit housed in the main body case are viewed from the front. apparatus.   4. The display device according to claim 3, wherein the light diffusion cover is detachably fixed to the cover.   5. The display device according to claim 3, wherein a light emitter can be disposed at an arbitrary position in the opening inner region provided in the main body case, and the cover and the surface of the light diffusion cover that covers the opening. A display device that performs light-emitting display using the entirety.   6. The display device according to claim 1, wherein the cover or the light diffusion cover covering the opening is continuously covered from a plane parallel to a plane perpendicular to the light emitter array surface in the main body case. A display device.

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