JP3061780B2 - n-dimensional scanning advertising tower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a scanning display device such as an advertising tower.

[0002]

2. Description of the Related Art Conventionally, display devices such as signboards and outdoor advertising towers have been made by painting paint on an iron plate or cutting out plastic. In recent years, advertising towers of new display systems such as a large TV system such as a jumbotron, a liquid crystal TV system, a lightning news system having improved LEDs, and a Q vision system have been added thereto.

[0003]

The display device of the conventional advertising tower including the above-mentioned TV system is designed so that the observer can see the image correctly when the observer is at rest. Therefore, the display device of these advertising towers has a problem that it is difficult and difficult to read the contents of the display device of the signboard of a nearby advertising tower when an observer who gets on a vehicle moving at a high speed sees. .

Therefore, conventionally, two solutions have been adopted for solving this problem. One is a method in which an advertising tower is formed at a distance, the viewing angle of the display device of the advertising tower viewed from the observer is reduced, and the subjective movement amount of the moving observer is reduced. The other is a method of devising that the relative speed approaches zero by the observer shaking his head sideways according to the moving speed.

[0005] However, in order to build the advertising tower far, it is necessary to increase the size of the advertising tower, and the installation space is limited. On the other hand, in order to build the advertising tower near, the moving speed increases with the speed of the vehicle. It is necessary to take some measures so that the display contents of the advertising tower can be read correctly from the viewpoint of the rider on the vehicle. The present invention has been made in view of such circumstances, and an observer of a ride moves his / her neck on the display contents of an advertising tower relatively close to a vehicle moving at high speed.
It is an object of the present invention to provide an advertising tower that can be easily read without displaying such an image and that displays such an image.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a display device for an advertising tower which actively utilizes the movement of an observer (hereinafter referred to as "observation moving body") on a vehicle. Is provided, and a plurality of display units provided along the movement path of the observation moving object are sequentially displayed on a plane formed of three pixels of RGB pixels by display time control by sequential display switching means. , A display synchronized with the speed of the observation moving body can be obtained.

According to the present invention, there is provided a display device for obtaining a long display with a continuous screen or a display of an intermittent frame feed screen, wherein a plurality of display units as display units are provided along a moving path of a moving object for observation. A sensor unit for detecting movement of an observation moving body and outputting movement information, generating a display switching control signal based on the movement information from the sensor unit, and outputting display data. And a display array unit having a display array unit composed of a number of display elements, wherein display data is input based on a display switching control signal from the data generation unit, and pixel display is sequentially switched and displayed. And a plurality of display units, which are the display units, are installed at substantially equal intervals along the moving direction of the observation movable body.

The sensor section includes a sensor circuit section for detecting the moving object for observation, and a judging section for judging a moving state of the moving object for observation based on a detection signal from the sensor circuit section, The movement information determined by the determination unit, that is, the movement speed or the movement direction information is output to the data generation unit. By the way, in the sensor section, a sensor circuit section including first and second sensors installed at a predetermined interval along a moving direction of the observation moving body, and which of the two sensors detects first. The moving direction of the observation moving body is determined by judging the moving direction of the observation moving body, or the detection time of the two sensors is measured, and the moving speed of the observation moving body is calculated based on the measured value. And a determination unit that outputs speed movement information to the data generation unit.

The data generation section latches movement information of the observation moving body from the sensor section, and a programable circuit for generating a clock signal of a predetermined frequency based on the movement information latched by the latch circuit. An oscillator, an address signal generating circuit that generates an address signal to the memory unit based on the oscillation clock signal of the progromable oscillator, and a display data input control signal to the parallel-to-serial conversion unit based on the oscillation clock signal of the progromable oscillator. A data input control signal generation circuit for generating, and a display drive control signal generation circuit for generating a display drive control signal for the display unit based on an oscillation clock signal of the progromable oscillator. Address signal and display data input based on the movement information of the moving object Control signal, and an address signal generation circuit that generates various display switching control signals of a display drive control signal, a control signal generation unit of a display data input control signal circuit and a display drive control signal generation circuit, and stores image display data. A memory unit for outputting display data based on the address signal generated by the control signal generation unit, and converting parallel display data output from the memory unit to serial display data, and performing display driving from the control signal generation unit. And a parallel-serial conversion unit for transferring the data to the display unit based on a data transfer signal as a control signal.

The display section includes a display array section that receives serial display data transferred from the parallel-serial conversion section based on a data input control signal from the data generation section and converts the serial display data into parallel display data. And a display drive unit that latches parallel display data of the serial-parallel conversion unit based on a data latch signal that is the display drive control signal from the data generation unit to the display driver unit, and drives a display array unit. The display device includes a driver unit and a display array unit that is driven by driving means of the display driver unit and displays the latched display data.

In the scanning type advertising tower device, each display array of display units of a plurality of display units arranged in parallel with the moving direction of the moving object displays a flat screen by passing the moving object. The display array unit of the display unit of the display unit is set so that each of the plane screens is a continuous long display or an intermittent frame advance screen which is an intermittent frame taking image. It is.

[0012]

According to the scanning advertisement tower device of the present invention, when viewed from a stationary position, the flat display device of the display unit simply appears to flicker, but it is not suitable for vehicles moving at high speed. When the ride observer sees it,
The screens of the plurality of display units displayed on the display array unit of the display unit of the plurality of display units arranged at substantially equal intervals in parallel with the traveling direction of the moving object synchronized with the speed of the moving object are continuous by the display time control. It becomes a long display, or
Intermittent frame-like images can be obtained. That is, when a plurality of display units of the display unit of the display device enter the viewing angle of the observer, a continuous display of a continuous screen is obtained by the display time control, otherwise, an intermittent frame feed screen is provided. Is displayed.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall block diagram. The circuit shown in the overall block diagram is roughly composed of three blocks: a sensor unit, a data generation unit, and a display unit.

The sensor section includes a sensor circuit section 11 for detecting the movement of a vehicle (hereinafter, referred to as a “moving body”) on which an observer rides, and a movement section of the moving body which receives movement information from the sensor circuit section. A determination unit for calculating a moving direction and a moving speed and transmitting movement information for changing a timing signal in a timing generator;

The data generator includes a memory unit 14, a parallel-serial converter 15 for converting parallel display data from the memory unit into serial display data, an address signal for the memory unit, and a control signal for each unit. And a timing generator unit 13 for generating.

The display unit receives serial display data from the data generation unit and converts the serial display data into parallel display data, and latches the parallel display data.
A display driver section 17 for driving and controlling the display elements of the display array section 18 and a display array section using a display unit of an appropriate display element such as an LED or an EL which can blink at a predetermined scanning speed. 18.

The flow of display data will be described with reference to the timing chart of FIG. When the moving object passes through the sensor circuit unit 11, the moving information is detected, the moving speed and the moving direction are calculated, and the decoded data and the start trigger are given to the data generating unit. As a result, the screen display data of the display unit is sequentially read from the data generation unit, and the screen Uo. . Screen Un. . Is displayed. The screen of one frame display unit is composed of 128 columns of column data, and one column data is an 8-bit memory unit 1.
Each of the four RGs is composed of 32 pieces of read data. The read data is transferred between the data generation unit and the display unit in the form of serial display data.

Therefore, basic timing information transfer will be described. The memory address signal counted up by the address clock ADR-CK is loaded into the parallel-serial conversion unit 15 at the rise of the shift clock SCK signal when the load signal LDB is at the LOW level. Further, the serial display data is transferred to the display unit by the rising conversion of the shift clock SCK signal, and the shift clock SCK is shifted.
The serial display data is taken into the serial / parallel conversion unit 16 by the data shift clock DSCK which is an inverted clock of When all the data of each RG is shift clocked, it is latched by the display driver unit 17 by the data latch clock DLCK signal, and the data is latched by the column data CO.
It is displayed as Ln.

The details of the timing generator 13 in the data generator will be described with reference to the block diagram of FIG. The latch circuit 41 stores display data obtained by decoding the movement information of the moving object transferred from the determination unit 12 of the sensor unit for the programmable frequency divider 421. The programmable oscillator 42 mainly includes a voltage controlled oscillator VCO 425 and a phase comparator 423 in order to obtain an oscillation frequency multiplied by the reference signal oscillator 422. The frequency oscillated by the VCO 425 is divided by the programmable frequency divider 421 to a predetermined frequency and enters the phase comparator 423. On the other hand, the reference signal generator 42
2 is also input to the phase comparator 423. In a phase comparator, the phases of these two signals are compared and passed through the low-time transfer filter LPF 424 to the VCO 425.
A PLL circuit having the control voltage of is formed.

The use of such a programmable oscillator provides an oscillation frequency that is a multiple of the reference signal. However, it is needless to say that an appropriate frequency may be divided by a programmable period to obtain a predetermined frequency. Nor.

The oscillation clock CK signal obtained by the programmable oscillator in this manner generates an address clock ADR-CK signal by the counter 43, and further generates a load signal LDB by the condition circuit 45. AD
The address counter 44 based on the R-CK signal is an address counter of the memory unit 14, and counts up when the ADR-CK signal rises. Counter 4
3 and the output of the address counter 44 are further connected to the condition circuit 4
6, a data latch clock DLCK signal of the display driver unit 17 is created. The SCK signal is for the parallel-serial conversion unit 15.

The display section will be described with reference to FIG.
Since the transfer of the display data signal from the data generation unit to the display unit is serialized, if the display unit is, for example, a display device of one display unit for each picture element, as shown in FIG. However, three wires are sufficient to connect the display units.

FIG. 4 (b) shows the inside of the display unit of the display device.
The serial display data is stored in the G-side shift register 5
1 as the input Din, the data shift clock DSCK
Performs a latch clock and a shift clock. Then, the shifted clocked display data signal is input to the R-side shift register 54, and the shifted clocked display data signal becomes the output Dout to the next unit. When a display data signal for one column is shift-clocked to all units, the data latch clock DLCK
Accordingly, the display data signal latched and clocked by the drivers 52 and 55 is displayed under the previous column data. Also, by inputting an inverted clock of DSCK as DLCK and displaying the display data in the shift clock, it is possible to perform various video expressions.

FIG. 5 shows an embodiment in which the display devices of the display unit according to the present invention are arranged along the moving direction of the moving body. N multiple display units U ₁ , U ₂ , U ₃ ,.
n are set at substantially equal intervals Xm along the moving path of the moving body (that is, parallel with a distance of hm in the moving direction of the moving body), and the display device of the display unit Un repeatedly displays the screen n. It shall be.

As shown in FIG. 6A, from the time t = t ₁
When the observer A moves to the left by X ₁ m before the time t = t ₁ + Δt , the observer A sees that the display unit relatively moves to the right by X ₁ m , and the observer A Through the window in front of the screen, a screen of l × X ₁ m as shown in FIG.
The user can see the display on the nth screen.

At this time, N display units U ₁ ,
U ₂ ,... Un set the pitch interval distance X of each display unit of the display device to an appropriate value, and set the appropriate interval between the set pitches.
When the separation distance X ₁ m is set, the visual field of the observer A is
The left and right n-1 screens and n + 1 screens fall within the range of the field of view of the observer A and can be viewed simultaneously.

Furthermore, at the time of t = t _2, when the observer is moving to the position of the X ₁ m front of the display unit U _{n + 1} of the display device, as in FIG. 6 (c), t from = t ₂
Before t = t ₂ + Δt , a table is displayed in front of the observer A.
The display of the (n + 1) screen of l × X ₁ m of the display unit _{Un + 1} can be seen by the afterimage of the eyes.

By repeating the above procedure, through the window in front of the observer A, the intermittent frame feed screen is displayed in the time direction as shown in FIG. Then, it becomes possible to see a moving image with 10,000 display frames per second like a TV.

Similarly, the observer B who is at a position Xm in front of the same moving object (for example, a vehicle such as a train) is also the observer A
Observer B sees the same video as at time t ₁
In, the observer A looks at the n-th screen, while the observer A looks at the n + 1- th screen.

As described above, by controlling the display time of each display unit in the display device, the set pitch distance becomes X
The display of the intermittent frame feed screen, which is an intermittent frame-taking image when > X ₁ m, has been described. As shown in FIG. 7 (a), display time control is performed by setting the set pitch distance of the display unit to X.
When control is performed so that = X ₁ m , when viewed from the observer A, the display screens of the respective display units are connected and the afterimage is displayed as a continuous display having a long horizontal length.

For example, when the speed of the moving object is 16.7 m / sec and the display time is 1/30 sec, the set pitch distance of the display unit of the advertising tower display device may be set to about 56 cm.

If the set pitch distance is X <X ₁ m , the screen of each display unit will have an overlapping portion as shown in FIG. 7 (b).

[0033]

As described above, according to the present invention, a display device such as an advertising tower can be installed in a place where an observer and a wall approach each other, such as a subway or a tunnel, which could not be installed conventionally. Instead, the display of an arbitrary size can be easily made by setting the moving speed of the moving body, the electronic scanning, and the numerical setting of the set pitch distance of each display unit. However, since the afterimage effect of the eyes is used, it is not suitable that it takes a long time to display one screen.

The display section has a planar configuration in which a large number of display elements are arranged along the vertical and horizontal directions. With a plurality of display units having the planar configuration, the movement of the eyes is taken into consideration.
Each display unit can control a screen display provided with an overlapping portion, a continuous screen display, and an intermittent frame feed screen display, and the number of display elements driven simultaneously can be increased by using a display unit having a planar configuration. As a result, the brightness and the resolution are improved, and there is an effect that a stable image display can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the entire circuit configuration.

FIG. 2 is a timing chart showing an operation.

FIG. 3 is a block diagram showing details of a timing generator.

FIG. 4 is a configuration diagram of a display unit of a display unit.

FIG. 5 is a configuration diagram of a display unit of the display unit.

FIG. 6 is an explanatory view of installation of a display unit.

FIG. 7 is a screen configuration diagram of each display unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Sensor part, 12 ... Judgment part, 13 ... Timing generator part, 14 ... Memory part, 15 ... Parallel-serial conversion part, 16 ... Serial-parallel conversion part, 17 ... Display driver part, 18 ... Display array, 41 ... Latch circuit, 42 ... Programmable oscillator, 421 ... Programmable frequency divider, 4
22: Reference signal oscillator, 423: Phase comparator, 424 ...
LPF, 425 VCO, 43 counter, 44 address counter, 45, 46 condition circuit, 51, 54
... Shift register, 52, 55 ... Driver, 53,
56 ... display device, A, B ... observer, X ₁ ... set pitch distance
_{Away, U 1, U 2 ... Un} ... display unit, n, n + 1, n-
1 ... Screen.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G09F 21/04 G09F 19/12 G09F 19/14 G09G 5/00 510

Claims (1)

(57) [Claims] 1. A plurality of billboards are provided along a movement path of a moving object for observation, and display portions of display units of the billboards are installed at substantially equal intervals. A sensor unit for detecting movement of a moving body and outputting movement information, a data generation unit for generating a display switching control signal based on movement information from the sensor unit and outputting display data, and a number of display elements Having a display array unit of a plurality of display units configured in a plane, and inputting display data based on a display switching control signal from the data generation unit,
A first and a second sensor, wherein the sensor unit is provided at a predetermined interval along a moving direction of the observation movable body. And a determination unit that outputs movement information from both sensors to the data generation unit, wherein the data generation unit performs various types of movement based on the movement information of the observation moving body from the sensor unit. A timing generator unit that is a control signal generation unit that generates a display switching control signal; a memory unit that stores image display data and outputs display data based on an address signal generated by the control signal generation unit; The parallel display data output from the unit is converted into serial display data, and is converted to a display unit based on a data transfer signal from the control signal generation unit. To be in a parallel-serial conversion unit, the display unit, and converts the input serial display data transferred from the parallel-serial conversion unit based on a control signal from the timing generator unit in the data generation unit into parallel display data serial-parallel A conversion unit that latches parallel display data of the serial-parallel conversion unit based on a data latch signal that is the display drive control signal from the data generation unit to a display driver unit, and drives a display array unit of a plurality of display units. And a display array section of a plurality of display units driven by the driving means of the display driver unit to display the latched display data, along a traveling direction of the moving body. The display array unit of each display unit of the plurality of display units arranged in The screen is displayed by controlling the corresponding display time, and each screen is set to be a continuous long display or an intermittent frame advance screen which is an intermittent frame shooting image. Scan type advertising tower equipment.