JP3542861B2 - METHOD AND APPARATUS FOR DISPLAYING LARGE SCREEN SCROLLING FROM INTERIOR TO PERSON OVER WINDOWS - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for performing a scroll display of a large screen from the inside of a building in an urban building to a person outside through a window, for example, and particularly to a technique of scrolling information including character strings and graphics.
[0002]
[Prior art]
Many types of display devices are overflowing in urban city streets, and are used for various types of advertising such as product information, service information, and news information. As everyone realizes, a large-screen display device is superior in terms of the effect of advertising information. A large signboard and lighting are sufficient to convey fixed information, but a dot-matrix TV screen-type display device that can freely display character information and moving images is used to convey information that changes in various ways. Have been.
[0003]
[Problems to be solved by the invention]
Ultra-large dot matrix display devices installed on the rooftops and walls of buildings are extremely expensive. In addition to the cost of the device itself, the structure and installation work for installing the device are also very expensive. Therefore, it is not an easily usable device. In particular, it cannot be used for advertising purposes for a limited time.
[0004]
As is well known, banners and hanging banners are used for the purpose of using the outer wall of a building as large as possible, with as little expense as possible, because it requires only a limited period of time. Often used. For example, a banner or banner printed with capital letters such as "Congratulations on winning Yakult" is attached along the building exterior wall. This is certainly cheap, but it has the decisive problem of fixing the content of information. Further, when such a banner or banner is installed on the outer surface of a building having many windows, the windows are closed by a wide curtain cloth, and there is also a problem that the livability of the room inside the windows is significantly reduced. When a restaurant or the like that sells the scenery outside the window in a building or the like has an indoor atmosphere by taking in external light from the window, the window cannot be closed with the curtain cloth. Furthermore, in the case of hotels and museums that sell the beauty of the building for sale, it is difficult to set up banners and banners that hang on the boasting exterior walls.
[0005]
The present invention has been made in view of the above-described conventional problems, and its purpose is to provide nothing on the outer wall of the building, substantially impair the function of the window on the outer surface of the building, and provide a presentation using character strings or figures. It is an object of the present invention to provide a method and an apparatus for performing a large-screen scroll display from the inside of a building to an outside person through a window so that a variety of highly effective information can be displayed at a low cost. .
[0006]
[Means for Solving the Problems]
According to the method and the apparatus of the present invention, a large-screen scroll display is performed from an inside of a building to an outside person through a window according to the following requirements (1) to (5).
(1) A large number of bar-shaped displays in which a large number of light-emitting cells are arranged in a straight line at close intervals are provided, and the large number of bar-shaped displays are installed substantially in parallel with a large space inside a window glass of a building. .
(2) The emission directivity and the installation direction are set so that the light from the light emitting cells of each of the rod-shaped displays can be clearly recognized by people in a predetermined area outside the building.
(3) A band-shaped screen area is formed along the window glass surface of the building by the arrangement of the respective bar-shaped indicators, and a large number of the light emitting cells arranged vertically and horizontally in the band-shaped screen area are bitmap image data. And scrolls the image from one end to the other end of the strip-shaped screen area.
(4) The strip-shaped screen area of (m × n) light-emitting cells having m dots vertically and n dots horizontally is formed by the n rod-shaped displays having m light-emitting cells. When w is a large integer not less than a multiple of n, the image data in the bitmap format is such that the strip-shaped screen area has m dots in the vertical direction and w dots in the horizontal direction. Create it as a screen.
(5) In the strip-shaped screen area regarded as the screen having the pixel configuration of the (m × w) dots, at a certain moment, the image data of the (m × w) dots are selected in the scroll direction in the scroll direction. (M × n) light emitting cells are driven by data of (m × n) dots.
[0007]
In the above requirements, a large number of the bar-shaped displays and a central control device that performs display control may be connected in a manner of a cable for transmitting image data and control signals, or the bar-shaped displays and the central device may be connected to each other. The control device and the control device may be connected by a wireless transmission path for transmitting image data and a control signal. In the latter case, a power supply cable may be individually provided for each of the bar-shaped indicators.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
[Appearance of Embodiment]
Since the equipment and facilities of the display system of the present invention are installed inside the window glass of the building, they hardly appear on the exterior of the building, but are shown in FIGS. 1 and 2, for example. The building in this example is an outer surface of the entire glass of the curtain wall structure, and 32 bar-shaped indicators 2 are vertically arranged inside the window glass 1 on the third floor.
[0009]
The total length of the bar-shaped display 2 is about 2 meters, and 64 light-emitting cells (LED collective lamps) 3 are linearly arranged at a pitch of about 3 cm on the front. Each bar-shaped indicator 2 is placed vertically on the floor of the third floor in an appropriate stand structure, and is arranged very close to the inner surface of the window glass 1. Further, 32 bar-shaped indicators 2 are arranged in parallel at substantially constant intervals of about 1 meter. However, it is not necessary to make this interval strictly constant, and there may be some errors depending on the indoor conditions. Furthermore, in the case where the bar-shaped indicators 2 are arranged over windows of a plurality of rooms partitioned by walls or the like, a state in which the bar-shaped indicators 2 cannot be installed at the above-described intervals due to a wall or the like between windows occurs. In that case, the bar-shaped indicator 2 is not disposed at that location, and as a result, there may be very small omissions in the arrangement at regular intervals.
[0010]
The system of this embodiment is intended to display information for people walking on the sidewalk opposite to the building on the road adjacent to the building. The 64 light emitting cells 3 in each bar-shaped display 2 are arranged with the same directivity so as to emit light in the same direction, and the spread of the directivity is considerably large. When the 32 bar-shaped indicators 2 are arranged side by side inside the window glass 1, the installation directions of the respective light emitting cells are aligned so that the center of the light emitted from each of the three rows of light emitting cells faces the direction of the sidewalk. To adjust.
[0011]
[Circuit system for display control]
A circuit system for display control according to one embodiment of the present invention is shown in the block diagram of FIG. As described above, each bar-shaped display 2 includes a light-emitting cell row Ai in which 64 light-emitting cells (LED collective lamps) 3 are linearly arranged at close intervals and drives the light-emitting cell row Ai. It includes a 64-bit drive circuit DSi. Here, i is an integer indicating the arrangement order of the 32 bar-shaped indicators 2, and i = 1, 2, 3,...
[0012]
The drive circuit DSi is a circuit in which a 64-bit shift register 4, a 64-bit latch circuit 5, and a 64-bit driver 6 are integrated, and the 64-bit display data transferred to the shift register 4 is latched by the latch circuit 5. The driver 6 drives the 64 light emitting cells 3 for display in accordance with the 64-bit display data.
[0013]
The 32 bar indicators 2 are interconnected in series by cables and connected to a common central controller 7. All 32 64-bit shift registers 4 included in each of the 32 drive circuits DSi are connected in series to form a (64 × 32) -bit shift register as a whole. It is connected to the device 7.
[0014]
The image memory 8 of the central control device 7 stores bitmap image data of 64 bits in length and free size in width. The 64-bit data in each column of the image data is referred to as column data, and each column data is sequentially numbered D1, D2, D3,... (The general term is denoted by Dj). It is assumed that the image memory 8 has a structure of 1 word = 64 bits, and column data Dj is stored at an address j.
[0015]
The processor 9 of the central control unit 7 makes read access to the image memory 8 as follows. The column data Dj read in parallel from the image memory 8 in 64 bits is serialized via the shift register 10 for parallel / serial conversion, and the 32 64-bit shift registers 4 are serialized as described above ( 64 × 32) bit shift register. By serially inputting 32 columns of column data from the central control unit 7 to this (64 × 32) bit shift register, 64 bits of column data were given to the 32 64-bit shift registers 4 respectively. become. At this time, a latch signal is supplied from the central control unit 7 to each drive circuit DSi, and the data of the shift register 4 is transferred to the latch circuit 52 and held. Drive. At the same time, the data of each shift register 4 is updated. The scroll display is performed by repeating the above operation.
[0016]
[Display control procedure]
FIG. 4 is a flowchart showing a control procedure of the read access of the image memory 8 by the processor 9 in the central control unit 7. In the first step 601, the start pointer P is set to 0, and in the next step 602, the value of the start pointer P is moved to the address pointer j (j = P = 0 at the stage of this explanation). In step 603, the column counter C is set to 0.
[0017]
In the next step 604, the image memory 8 is read-accessed at the address j indicated by the address pointer j, and the read column data Dj is serially transferred as described above. In the next step 605, 10 is added to the address pointer j. Here, "adding 10 to j" instead of adding 1 to the address pointer j clearly shows the feature of the intermittent scroll display system of the present invention (the meaning will be described later in detail).
[0018]
In the next step 606, 1 is added to the column counter C, and in a step 607, it is checked whether or not the value of the column counter C has reached the final value n = 32. Until C = 32, the process returns to step 604, and the image memory 8 is read-accessed according to the address pointer j updated in step 605. If C = 32, it means that the column data has been distributed to the 32 shift registers 4 respectively. In this case, the process proceeds to step 608 to generate a latch signal as described above.
[0019]
Of course, the column data in the image memory 8 constitutes image data in the order of Dj → D (j + 1) → D (j + 2) → D (j + 3) → D (j + 4) → D (j + 5) → D (j + 6) → ing. In the intermittent scroll display method of the present invention, if the column data Dj is transferred to the drive circuit DS32 of the first bar display 2 by the above-described data transfer control, the drive data DS31 of the next bar display 2 is transmitted to the drive circuit DS31 of the next bar display. Column data D (j + 10) is transferred, and further column data D (j + 20) is transferred to the drive circuit DS30 of the adjacent bar-shaped display 2. Similarly, column data D (j + 30) is transferred to the drive circuit DS29. The column data D (j + 40) is transferred to the circuit DS28, and the column data selected every 10 columns is transferred to each bar-shaped display 2 respectively.
[0020]
In the next step 609, 1 is added to the start pointer P, and preparations are made to advance the image to be displayed by one unit in the scroll direction. In the next step 610, it is checked whether or not the value of the start pointer P has reached the value MAX indicating the end of the image to be displayed. Until P = MAX, the process returns to step 602 to advance the scrolling of the image. When P = MAX, the process returns to step 601 to restart the scrolling of the image from the beginning.
[0021]
[Split scroll display method]
The display control in the above embodiment can be expressed as follows. The scroll display having such a requirement will be referred to as a skip scroll display method.
[0022]
(A) The n = 32 bar-shaped display 2 having m = 64 light-emitting cells 3 forms a strip-shaped screen area composed of (64 × 32) light-emitting cells 3 of 64 dots vertically and 32 dots horizontally. Is formed along the window glass 1 on the third floor, while the image data in the bitmap format stored in the image memory 8 is such that the strip-shaped screen area has m = 64 dots in the vertical direction and the horizontal direction Is created as a screen in which pixels of w = (n × 11) −10 = 342 dots are arranged.
[0023]
(A) As described above, in the strip-shaped screen area regarded as a screen having a pixel configuration of (64 × 342) dots, at one instant, 10 columns in the horizontal direction in the (64 × 342) dot image data The (64 × 32) light emitting cells 3 are driven by data of (64 × 32) dots selected every other.
[0024]
[Appearance of the intermittent scroll display method]
In order to explain how the intermittent scroll display system looks to the observer, this is an example different from the embodiment of FIGS. 1 to 4, but the relationship between the light emitting cell column Ai and the column data Dj is schematically shown in FIG. Is shown.
[0025]
In the example of FIG. 5, the flow of the image data in the bitmap format of two characters “maru” in which one character is composed of 16 × 16 dots and the six light emitting cell rows Ai to A (i + 5) are superimposed. expressing. A portion where the data dot and the dot of the light emitting cell 3 overlap is indicated by a black circle, and the cell 3 of the black circle emits light. As shown in detail, among the one-character data composed of 16 column data, only three column data selected at intervals are displayed by three light emitting cell columns. Are not displayed at all. However, by performing scroll display control at a speed of, for example, four characters per second, a person observing the scroll recognizes the character as a 16 × 16-bit character.
[0026]
Similarly, as in the embodiment shown in FIGS. 1 to 4, even if the interval between the bar-shaped indicators 2 is large (in a specific example, 1 meter), the density of the image data to be scroll-displayed is set to be sufficiently high (specifically). (In the example, the density is 11 times as high.) By performing scroll display control while selecting intermittent column data every 10 columns as in the above-described procedure, intermittent display is performed by the action of the retina and the visual center of the human eye. A recognition action (afterimage effect) that compensates between the data strings occurs, and the image scrolling to the people walking on the sidewalk opposite to the building on the road adjacent to the building as intended (according to the dot density of the image data) You can see it. Of course, the scroll speed needs to be increased to some extent in order to obtain the intended visual recognition effect. FIG. 2 shows a state in which a character string “summer large bargain sale” is scroll-displayed.
[0027]
[Another Example of Embodiment]
The bar-shaped indicators may be arranged in a horizontal position, and a large number of them may be arranged at large intervals in the vertical direction. That is, each bar display is installed almost horizontally inside the window glass from the upper floor to the lower floor of the high-rise building, and 3 to 6 bar displays per floor are arranged at intervals of 50 to 100 cm. It is possible to configure a system in which several tens are arranged in parallel and scrolled up and down by the same principle as described above.
[0028]
In the display control system shown in FIGS. 3 and 4, the moving image can be scroll-displayed by changing the image of the memory 8 with time by another processing system. In the embodiment shown in FIGS. 3 and 4, the processor 9 picks up the image data from the memory 8 and transfers the image data to each bar-shaped display 2 in series for distribution. The present invention is not limited to such a system. For example, by outputting image data in series without gaps and delaying the data at each bar-shaped display 2, each bar-shaped display 2 can pick up intermittent column data to achieve exactly the same display output operation. it can.
[0029]
【The invention's effect】
(1) By arranging a large number of the bar-shaped indicators at a large interval inside the window glass of a building, the very large strip-shaped screen area can be easily formed. Even if the interval between the rod-shaped displays is large, the density of the image data to be scroll-displayed is set to be sufficiently high, and the scroll display is controlled while selecting the above-mentioned intermittent column data. The function of the visual center produces a recognition effect (afterimage effect) that compensates for the gap between the data strings that are displayed at intervals, and makes it possible for people on the street outside the window to scroll the image as intended (according to the dot density of the image data). ) You can see it.
[0030]
(2) Image data including character strings and figures can be easily generated with a personal computer or word processor, and the freely created image can be scroll-displayed in the large band-shaped screen area. Can be easily implemented at very low cost.
[0031]
(3) Since nothing is installed on the outer surface of the building, the appearance of the building is not impaired at all.
[0032]
(4) Since the bar-shaped indicators are installed at large intervals inside the window glass, the function of the window to take in external light and the function of the window to view the outside view from the room are almost impaired. For example, the present invention can be easily implemented without substantially changing the current state of the interior of a room such as a hotel, a restaurant, or a museum.
[0033]
(5) Since each bar display is very small and light equipment, it is extremely easy to install and remove it inside the window, and therefore to quickly build the display system of the present invention when necessary. The equipment can be installed inside the facility, and the equipment can be quickly removed after the end of the use period, which is extremely practical and the implementation cost is low. Of course, the equipment can be reused repeatedly. In particular, if the configuration is such that each bar-shaped display and the central control unit are wirelessly connected, installation and removal are further simplified.
[0034]
(6) Despite displaying a large screen toward the outside of the building, the equipment (bar-shaped display) for that is installed indoors, so there is no need to consider waterproofing and corrosion prevention measures. But it is very economical.
[Brief description of the drawings]
FIG. 1 is an external view showing an example of an embodiment of the present invention.
FIG. 2 is an external view in which a display character string is added to the embodiment.
FIG. 3 is a block diagram of a circuit system for display control corresponding to the embodiment.
FIG. 4 is a flowchart showing a procedure of display control in the above system.
FIG. 5 is a schematic diagram for explaining how the jump scroll display system according to the present invention looks;
[Explanation of symbols]
REFERENCE SIGNS LIST 1 window glass 2 bar display 3 light emitting cell 4 shift register 5 latch circuit 6 driver 7 central control device 8 image memory 9 processor 10 shift register Ai light emitting cell array DSi drive circuit

Claims (3)

A method of performing a large-screen scroll display from the inside of a building to an outside person through a window according to the following requirements (1) to (5).
(1) A large number of bar-shaped displays in which a large number of light-emitting cells are arranged in a straight line at close intervals are provided, and the large number of bar-shaped displays are installed substantially in parallel with a large space inside a window glass of a building. .
(2) The emission directivity and the installation direction are set so that the light from the light emitting cells of each of the rod-shaped displays can be clearly recognized by people in a predetermined area outside the building.
(3) A band-shaped screen area is formed along the window glass surface of the building by the arrangement of the respective bar-shaped indicators, and a large number of the light emitting cells arranged vertically and horizontally in the band-shaped screen area are bitmap image data. And scrolls the image from one end to the other end of the strip-shaped screen area.
(4) The strip-shaped screen area of (m × n) light-emitting cells having m dots vertically and n dots horizontally is formed by the n rod-shaped displays having m light-emitting cells. When w is a large integer not less than a multiple of n, the image data in the bitmap format is such that the strip-shaped screen area has m dots in the vertical direction and w dots in the horizontal direction. Create it as a screen.
(5) In the strip-shaped screen area regarded as the screen having the pixel configuration of the (m × w) dots, at a certain moment, the image data of the (m × w) dots are selected in the scroll direction in the scroll direction. (M × n) light emitting cells are driven by data of (m × n) dots. 2. The building according to claim 1, wherein a large number of said bar-shaped indicators and a central controller for performing display control are connected by a cable for transmitting image data and control signals. A method of performing a large-screen scroll display for people. An apparatus for performing a scroll display of a large screen from the inside of a building to an outside person through a window by the method according to claim 1 or 2.

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