JP3574946B2 - Display device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a display device in which a plurality of light emitting elements are arranged on a printed circuit board, and each of the light emitting elements emits light to display predetermined characters, figures, patterns, and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been proposed an apparatus in which light-emitting elements such as LEDs are arranged in a dot matrix or arranged along outlines of characters, figures, and patterns, and light-emitting and blinking light-emitting display of transmission information. Above all, small display devices, which are mainly installed at stores and display messages such as “open” and “welcome” to passers-by and simple animations, have been increasing in recent years. These display devices are required to be inexpensive and have a high degree of attention. Particularly, as the number of installed devices increases, a "high degree of attention" tends to be required. Therefore, as disclosed in Japanese Utility Model Registration No. 3043824, there has been proposed an apparatus provided with a decorative display section that exclusively performs decorative light emission around a dot matrix type display section using light emitting diodes.
[0003]
However, in these conventional devices, the LED constituting the display unit emits only a single color or at most three colors (red, green, orange), so that it is not possible to escape from a similar image. Was. If blue is added to the emission color, full-color display becomes possible, but it is practically impossible to use expensive blue LEDs in the same way as red and green LEDs due to cost constraints. In some, blue LEDs were spot-shaped around the display area to change the image, but the majority of the area was occupied by a single color or three colors. I couldn't escape my personality.
[0004]
[Problems to be solved by the invention]
Accordingly, an object of the present invention, there is provided an apparatus for emitting a message or simple animations, such as are installed in a store destination or the like attracting interest "during office", "May I help you", expensive blue as LED constituting the display unit While using LEDs, the number of uses is reduced to a small number without using them in the same way as red and green LEDs, and it is possible to realize a display device that is inexpensive and has a high degree of attention that can perform multicolor display. It is in.
[0005]
[Means for Solving the Problems]
(1) In order to solve the above-described problems, according to the present invention, a display device is configured by arranging light-emitting elements on a printed circuit board, and a display device that emits characters, figures, patterns, and the like in a matrix form. An information display unit for selectively illuminating the arranged light emitting elements and illuminating and displaying information content, an information display driving unit for driving the light emitting elements constituting the information display unit to emit light, and a light emitting element constituting the information display unit A background display unit that is composed of light-emitting elements of different emission colors and has a lower array density than the information display unit and that emits and displays a predetermined background pattern, and a background display drive that emits and drives the light-emitting elements that form the background display unit and a part, the information display unit and said background display unit by arranging light emitting elements on the same printed circuit board so as to constitute a display area overlap each an information display unit, fewer outgoing from the information display unit It proposes a display device which is characterized in that the mixed color display by light emission driving in synchronism with the background display unit consisting of elements.
[0006]
(2) Further, in the display device proposed above, a display device is characterized in that the emission color of the light emitting element forming the information display section is different from the emission color of the light emitting element forming the background display section.
[0007]
(3) Further, in the display device proposed above, there is provided a display device characterized in that a light emitting element of a background display section located near a light emitting element which is turned on in the information display section is turned on.
[0008]
(4) Further, in the display device proposed above, there is provided a display device in which a light emitting element of a background display section located near a light emitting element turned on in an information display section is turned off.
[0009]
(5) Further, in the display device proposed above, the present invention proposes a display device characterized in that the information display section and the background display section are driven to emit light in synchronization with different emission colors to perform mixed-color display.
[0010]
(6) Further, in the display device proposed above, the present invention proposes a display device in which the information display section and the background display section are driven to emit light with different emission colors independently.
[0011]
[Action]
According to the proposal of (1), an information display unit for illuminating and displaying information contents composed of characters and graphics by arranging light emitting elements in a matrix , and emitting light of a different color from the light emitting elements of the information display unit; A display area is formed by superimposing a background display section in which light emitting elements are arranged at a coarser interval than the information display section on the same substrate. Therefore, decoration can be performed on the entire surface by overlapping the background pattern with the character or figure pattern to be displayed . In addition, the information display unit and the background display unit including a smaller number of light emitting elements than the information display unit are driven to emit light in synchronization. Therefore, multicolor light emission can be achieved by mixing the character or graphic pattern as the transmitted information with the light emission color of the background, and the multicolor display with a high degree of attention can be performed while suppressing the number of light emitting elements used for the background display section. A simple display device can be realized at low cost.
[0012]
According to the proposal of (2), since the information display unit and the background display unit are driven to emit light in different colors, characters and graphic patterns appearing on the information display unit can be more visually recognized.
[0013]
According to the proposal of (3), since the light-emitting elements of the background display section located near the light-emitting elements that are turned on in the information display section are turned on, characters and graphic patterns appearing in the information display section are highlighted. be able to.
[0014]
According to the proposal (4), when the information display unit and the background display unit are simultaneously driven to emit light, the light-emitting elements of the background display unit located near the light-emitting elements lit by the information display unit are turned off. In addition, it is possible to prevent a phenomenon in which a character or a graphic pattern blends into a background pattern.
[0015]
According to the proposal of (5), since the information display section and the background display section are driven to emit light in synchronization with different emission colors, multi-color emission is performed by mixing a character or graphic pattern as transmission information with the emission color of the background. Can be done. For example, if a character or figure pattern is driven to emit light in red and a background is emitted in blue, the character or figure pattern as a result of the mixed color can be visually recognized in purple.
[0016]
According to the proposal of (6), since the information display unit and the background display unit are driven to emit light with different emission colors without being synchronized with each other, the character or figure pattern as the transmission information is randomly mixed with the emission color of the background. It is visually recognized. As a result, a high degree of attention can be obtained.
[0017]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing the overall configuration of a display device according to an embodiment of the present invention. Reference numeral 1 denotes a display panel configured by arranging a plurality of LEDs on a printed circuit board. The display panel 1 includes an information display unit 2 for displaying transmission information such as a message and animation, and a background display unit 3 for displaying a background of the transmission information. Reference numeral 4 denotes an information display drive unit for driving the LEDs constituting the information display unit 2 to blink, and reference numeral 5 denotes a background display drive unit for driving the LEDs constituting the background display unit 3 to blink. Reference numeral 6 denotes a control unit which reads out characters, words, sentences, pictorial symbols, patterns, etc. stored in the storage unit 7 according to a schedule stored in advance, and turns on / off the LEDs on the information display drive unit 4 and the background display drive unit 5. Is output, and the LEDs arranged on the display unit 1 are driven to blink, for example, by blinking a character or blinking a background pattern by giving a design relevance to the blinking of a character. Attract the viewer's attention.
[0018]
Next, the information display unit and the background display unit will be described. As shown in FIG. 2, the information display section is configured by arranging the LEDs 11 in a matrix on the surface of the printed circuit board 10. In this embodiment, 16 LEDs 11 are arranged in each of the vertical and horizontal directions, for a total of 256 LEDs 11 By selectively lighting, characters, words, sentences, pictograms, patterns, etc. are illuminated. One background display unit is also configured by arranging the LEDs 12 on the printed circuit board 10 like the information display unit. However, as shown in FIG. A total of 60 pieces are arranged in a staggered lattice at a coarse density . These two display sections are superposed on the same printed circuit board to form the same display area as shown in FIG. 4, and are independently flashed by the information display drive section 4 and the background display drive section 5, respectively. . With such a configuration, while the 256 LEDs 11 constituting the information display unit are arranged in a matrix, the 60 LEDs 12 constituting the background display unit are sparsely and substantially uniformly arranged at a low arrangement density. Thus, multicolor display can be performed while suppressing the number of expensive blue LEDs used. For example, if a character is displayed in red and the background is lit in blue, red and blue are mixed and the character is recognized as purple.In addition, if the character is displayed in yellow and the background is lit in blue, the character is displayed. Is recognized as white.
[0019]
Next, the configurations of the information display drive unit 4 and the background display drive unit 5 will be described with reference to FIG. Reference numeral 4a denotes an information display VRAM which develops data such as characters, words, sentences, pictorial symbols, and patterns read from the storage unit 7 by the control unit 6 into a display form. Reference numeral 4b denotes an information display driver controller, which actually drives and drives the LEDs of the information display unit 2 arranged in a dot matrix according to display data developed in the information display VRAM 4a to emit light as a display pattern. Reference numeral 5a denotes a background display VRAM which develops data such as a background pattern read from the storage unit 7 by the control unit 6 into a display form. Reference numeral 5b denotes an information display driver controller that actually drives the LEDs arranged in the background display unit 3 to light up and emits the background pattern according to display data developed in the background display VRAM 5a.
[0020]
Next, the operation of the embodiment of the present invention will be described. FIG. 6 shows a state in which “A” is displayed on the information display unit and all the LEDs of the background display unit are turned on. The flow of the process for displaying this state may be such that the solid pattern is developed in the background display VRAM in parallel with the development of the character pattern “A” in the information display VRAM. Although not shown, the background display section can display not only a painted pattern but also an arbitrary pattern such as a striped pattern. In short, what is necessary is just to arbitrarily read out from various pattern patterns previously stored in the storage unit 7 and display them.
[0021]
FIG. 7 shows a state in which “A” is displayed on the information display section, and an LED corresponding to a dot that overlaps with “A” and a dot that does not overlap but is located near is displayed on the background display section. The flow of the process for displaying this state is performed in parallel with the development of the character pattern of “A” in the information display VRAM, and the outline of the character “A” in the background display VRAM by a predetermined number of dots. You just have to make it bold and expand it.
[0022]
FIG. 8 shows a state in which “A” is displayed on the information display unit, and an LED in a position not overlapping with “A” is lit on the background display unit. The flow of the process for displaying this state may be such that the inverted dot pattern of "A" is developed in the background display VRAM in parallel with the development of the character pattern "A" in the information display VRAM.
[0023]
The lighting operation of the information display unit and the background display unit can be set arbitrarily. For example, the background display section is turned on completely in conjunction with turning on and displaying “A” on the information display section, or the background display section is made to blink while “A” is turned on and displayed. The light emitting operation of the display unit may be related to the light emitting operation of the background display unit (synchronous display). Alternatively, the background display section may be decoratively lighted at all at random without giving any relation between the information display section and the background display section (asynchronous display).
[0024]
The present invention is configured as described above, but is not limited to the above embodiment. For example, the combination of the emission color of the information display unit and the emission color of the background display unit may be green and blue, orange and blue, and the background display unit is not limited to blue emission. Further, if the light emission luminance is controlled by changing the on / off ratio of the LEDs by the driver controllers 4b and 5b, the range of colors obtained as a result of the color mixture is widened, and further multi-color display becomes possible.
[0025]
【The invention's effect】
As described above, according to the present invention, an information display unit for illuminating and displaying information content to be conveyed to a viewer by arranging LEDs, and emitting light of a color different from that of the LEDs of the information display unit and at a coarser interval than the information display unit Are arranged on the same printed circuit board to form a common display area, so that the background pattern is overlapped with the pattern of characters, text, graphics, etc., which is illuminated and displayed to the viewer. Decoration light can be emitted as a whole, and the degree of attention can be significantly improved. In addition, the information display section and the background display section having a smaller number of LEDs than the information display section are driven to emit light in synchronization with each other, so that a character or a graphic pattern as transmission information is mixed with a background color to emit multicolor light. Thus, a display device capable of multicolor display can be realized at low cost while suppressing the number of LEDs arranged in the background display section. Specifically, multicolor display is performed by arranging blue LEDs in the background display section, and product cost can be reduced by suppressing the number of expensive blue LEDs used.
[0026]
In addition, since the information display unit and the background display unit are driven to emit light in different colors, it is possible to clearly and surely transmit the content displayed by the information display unit while emitting light while decorating the entire display surface.
[0027]
In addition, since the LED of the background display unit located at a position overlapping with the pattern to be displayed by light emission on the information display unit and the vicinity thereof is lit, the light emission display pattern of the information display unit can be emphasized.
[0028]
In addition, when the information display unit and the background display unit are simultaneously driven to emit light, the LED of the background display unit located near the LED lit on the information display unit is turned off, so that the character or figure pattern becomes the background pattern. The phenomenon of dissolution can be prevented and can be clearly recognized.
[0029]
In addition, since the information display section and the background display section are driven to emit light in synchronism with different emission colors, multicolor emission can be achieved by mixing a character or graphic pattern as transmission information with the emission color of the background. In particular, multicolor light emission can be realized at low cost without using many expensive blue LEDs.
[0030]
Further, since the information display section and the background display section are driven to emit light in different emission colors without synchronizing with each other, it is possible to randomly display a character or graphic pattern as transmission information in a mixed color with the background emission color. Therefore, an unpredictable color change is visually recognized by the viewer, and a remarkable degree of attention can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram illustrating an overall configuration of a display device according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating a configuration of an information display unit.
FIG. 3 is an explanatory diagram illustrating a configuration of a background display unit.
FIG. 4 is an explanatory diagram illustrating a configuration of a display panel.
FIG. 5 is an explanatory diagram illustrating a configuration of an information display driving unit and a background display driving unit.
FIG. 6 is an explanatory diagram showing the operation of the embodiment of the present invention.
FIG. 7 is an explanatory diagram showing the operation of the embodiment of the present invention.
FIG. 8 is an explanatory diagram showing the operation of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Display board 2 Information display part 3 Background display part 4 Information display drive part 4a Information display VRAM
4b Information Display Driver Controller 5 Background Display Driver 5a Background Display VRAM
5b Information display driver controller 6 Control unit 7 Storage unit 10 Printed circuit board 11 Information display unit LED
12. Background display LED

Claims (1)

A display device in which light-emitting elements are arranged on a printed circuit board to form a display area, and characters, figures, patterns, and the like are luminescently displayed,
An information display unit for selectively lighting the light-emitting elements arranged in a matrix and displaying light-emitting information content;
An information display drive unit that drives a light emitting element constituting the information display unit to emit light,
A light emitting color different from the light emitting elements constituting the information display portion, and a background display portion configured to emit light of a predetermined background pattern, which is constituted by light emitting elements having a lower array density than the information display portion,
A background display driving unit that drives the light emitting elements constituting the background display unit to emit light,
A light emitting element is arranged on the same printed circuit board so as to form a display area in which the information display section and the background display section overlap each other, and an information display section and a background display section including a smaller number of light emitting elements than the information display section. A display device that performs mixed-color display by driving light emission in synchronization with the display device.

Images