JP2003316289A - Display information transmission system and application apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display information transmission system for facilitating maintenance management by low consumption electric power. <P>SOLUTION: The display information transmission system arranges a display device 25 provided with a memory display panel 2; a drive circuit 1; a memory 3; a control circuit 4 and a receiving circuit 5; and a management device 20 having a display information generating function and a display information conversion function, and provided with a transmission circuit 6, an image memory 7, CPU 9, a scanner 8 and a display part 10. Display information is transmitted with a communication means 11 from the transmission circuit 6 to the receiving circuit 5, and graphic display information is included in the received display information. The display information transmission system is constituted so that at least a part of the graphic display information is used to be displayed on the memory display panel 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel display information transmitting system for transmitting display information including graphic information to a memory type display panel in a non-contact manner and displaying the same, and an application device using the same.

[0002]

2. Description of the Related Art An electronic shelf label system which uses infrared rays as a communication means and displays product information on a small TN liquid crystal panel has been already used (conventional example 1). An electronic shelf label is arranged for each shelf in a store such as a department store or a supermarket, and the price of the product is mainly displayed. Further, the display of the electronic shelf label is centrally managed and is configured to be linked with the POS system.

A "Minpaku electronic guide" is known as a display device of an exhibition information system in the National Museum of Ethnology (Prior art example 2). This electronic guide is an information device that integrates the functions of a PDA such as a TFT type liquid crystal display device and a communication function, and when a viewer stands in front of an exhibit in the hall, the information is displayed by a non-contact type communication means. The exhibit information system is configured so that information on the exhibit is transmitted to the electronic guide.

In the conventional example 2, the display information displayed is abundant and diverse, and the viewer can explain about 300 kinds of exhibits composed of character information, still images, moving images, and voices in the exhibition hall. You can freely select and see.

The moving picture information stored in the server can be downloaded to the electronic guide in the video-on-demand format. Through the in-house LAN, it is possible to provide each electronic guide at high speed (12 Mbps) using infrared communication with a narrow reception area. Voice information is also available, and you can hear the explanation of the exhibit by voice from the earphones attached to the electronic guide. Further, the electronic guide has a built-in battery, and is configured to be reused by recharging the battery after a lapse of a predetermined period.

[0006]

In the prior art example 1, it was a big problem that the product price for selling the product was only displayed and the amount of information required for the display was basically small. Further, there is a problem in that the function of performing color display is not sufficient, and the display function is low as a whole. In addition, since the communication means used is infrared, it may be difficult to perform stable infrared communication due to a large number of people or hot objects existing near the space where the electronic shelf label is installed. It was

When changing the display information of the display device, it is necessary to consider that there are factors that affect communication. In addition, the fact that the path of infrared rays is almost straight and the distance is short has hindered the use.

In Conventional Example 2, the display panel of the display device is not of the memory type, and a constant electric power is continuously consumed.

Therefore, the present invention is easy to handle,
Moreover, it is an object of the present invention to obtain a display information transmission system with low power consumption as a whole system. It is also an object of the present invention to easily maintain and manage the equipment and circuit devices to be used and to construct the entire system with a low initial investment.

[0010]

A first aspect of the present invention is a display device including a memory type display panel, a drive circuit, a memory, a display control circuit, and a receiving circuit, a control circuit, and a transmitting circuit. And a management device provided with are arranged, the display information is transmitted from the transmission circuit to the reception circuit by the non-contact type communication means, and the received display information includes graphic display information. Provided is a display information transmission system configured to display at least a part of a memory type display panel.

In mode 2, the non-contact type communication means is Blu.
A display information transmission system according to aspect 1, which is an Ethernet communication, is provided.

Aspect 3 provides the display information transmission system according to Aspect 1 or 2, wherein the memory type display panel is a chiral nematic liquid crystal display element and multicolor display of four or more colors is performed.

Aspect 4 provides an electronic shelf label device using the display information transmission system according to Aspect 1, 2 or 3.

Aspect 5 provides a signboard device using the display information transmission system according to Aspect 1, 2 or 3.

Aspect 6 provides a public display device using the display information transmission system according to Aspect 1, 2 or 3.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Display information transmission system 1 of the present invention
FIG. 1 shows a basic configuration example 1 of 00. In the display device 25,
At least a drive circuit 1, a memory type display panel 2, a memory 3, a control circuit 4, and a receiving circuit 5 are provided. In the figure, illustration of a power source such as a secondary battery is omitted.

The management device 20 essentially includes an image memory 7 containing display information and a transmission circuit 6. The management device 20 has a display information generating function for generating display information and a display information converting function. Further, the display unit 10 and the scanner 8 may be provided. The image information is processed by the CPU 9. A general-purpose personal computer can be used as the management device 20.

It is preferable that the display data to be actually displayed on the memory type display panel 2 is converted from the original image and the image in the process of generation can be displayed and confirmed. Further, it is preferable to include a general-purpose input / output device and peripheral devices.
If the memory type display panel is, for example, a three-layer laminated type and is capable of full-color display, it is possible to display a normal color original image having many colors almost as it is.

Display information including graphic information is stored in the image memory 7 of the management device 20. Create the image you want to display on your computer in advance,
The original image is processed semi-automatically by software, and pixel information and color information are processed so that it can be displayed on the memory type display panel when the number of colors is limited.

For example, when two layers of chiral nematic liquid crystal display elements are laminated as a memory type display panel and selective reflection light of both is combined to perform multi-color display, the two colors in the visible range are set in a complementary color relationship. Preferably. Then, the color information of each pixel of the original image is changed to two colors having complementary colors and four colors of white and black to obtain display information (Japanese Patent Application No. 2002-11904).
1).

As described above, the display information generating function of the management device 20 is to edit and generate the color information of the original image and the pixel information of the original image so that the display information can be displayed on the memory type display panel 2. It is a function to do. Further, the display information is converted into transmission data communicable by the communication means by the display information conversion function and transmitted by the communication means 11 such as a radio wave. The transmission data includes, for example, BMP and TI.
It includes digitized display information including image data such as F, GIF, and JPEG standards and character data.

In the present invention, a non-contact type communication means is used. Infrared rays, electromagnetic induction methods, radio waves, lasers, etc. can be used. Further, it is preferable to adopt a general-purpose communication standard for the transmission circuit 6 and the reception circuit 5. This is because the cost of the entire device can be reduced by using parts and products of general standards. It is also possible to secure the accuracy and stability of the communication circuit and the like. To perform bidirectional communication between the management device 20 and the display device 25, a transmission / reception circuit may be provided for each.

Among the communication means, it is preferable to use the Bluetooth communication because the power consumption of the entire system can be particularly reduced and the equipment can be easily maintained. Bluetooth communication refers to wireless communication using radio waves in the 2.4 GHz band.

In Bluetooth communication, about 10
If it is within m, the display information can be transmitted even if there is a barrier. In addition, the display information can be distributed in a wider range as long as the space can be normally seen.
Instead of the dedicated Bluetooth module, it may be built in the notebook computer. For example,
General-purpose notebook computer (VAIO PCG-SRX7E
/ P (manufactured by Sony) can be used to send the edited display information to UB-6010 (manufactured by Tokyo Electronics Design Co., Ltd.).

Further, a display control command can be sent to the display device 2 as transmission data. At this time, when the display information is rewritten, a command to erase the display screen or a command to read the fixed display data stored in advance in the ROM of the display device 2 into the memory 3 as the transmission data are used as the display device 25. You can also send it to.

In addition, bidirectional communication with a plurality of display devices 25 or a plurality of display devices 25 is achieved by transmitting transmission data from one management device 20 constantly or in time series.
Apparently simultaneous data transfer is possible.

The Bluetooth communication can be connected to a general-purpose computer via RS232C. In addition, there is also a method of connecting to a USB or PC card slot.

As a power supply means for the display device 25,
It is preferable to incorporate a secondary battery. Alternatively, a solar cell is used together. It is preferable that the device be connected by wiring from the outside and can be operated without being supplied with electric power. This is because the operational advantage of the system becomes large.

The transmission data from the management device 20 is received by the receiving means 5 of the display device 25, and the control circuit 4
It is stored in the memory 3 and further displayed on the display screen of the memory type display panel 2. The drive circuit 1 drives the memory type display panel 2 using a liquid crystal display element or the like.

The memory type display panel 2 has a driving voltage of substantially 0V or is not driven continuously.
It refers to one that has the property of holding display information. The memory type display panel 2 includes, for example, a cholesteric or chiral nematic liquid crystal display element (hereinafter referred to as CL-LCD) or an antiferroelectric liquid crystal display element (hereinafter referred to as AF).
-It is called LCD. ) Etc. Particularly in the present invention, it is preferable to use a CL-LCD capable of reducing power consumption.

The CL-LCD has a phase transition type operation.
The phase transition type is a planar state (hereinafter referred to as PL state) that selectively reflects a part of incident light and a focal conic state (hereinafter referred to as FC state) that scatters incident light.
Is stable in at least two states, and the liquid crystal can be transitioned to the PL state or the FC state by applying a predetermined voltage between the electrodes.

FIG. 2 shows a sectional structure of a memory type display panel 2 using a CL-LCD. The CL-LCD is generally driven by a simple matrix method. The electrode surfaces of the first substrate 2B provided with the row electrodes 2F and the second substrate 2C provided with the column electrodes 2G are opposed to each other so as to be orthogonally arranged. First substrate 2B and second
The substrate 2C is pressure-bonded through the peripheral sealing material 2D to form a cell space, and the chiral nematic liquid crystal layer 2 is formed inside the cell space.
E is injected.

The extraction electrode group 2H is formed on the second substrate 2C. The column electrode 2G of the second substrate 2C is the extraction electrode group 2
Although directly connected to a predetermined electrode in H, the first substrate 2
The row electrode 2F of B is connected to the extraction electrode group 2H via a transfer material such as conductive beads contained in the peripheral sealing material 2D.
Conduction is established with a predetermined electrode inside. The extraction electrode group 2H may be formed on each of the first substrate 2B and the second substrate 2C without using the transfer material. A black matte coating is provided as a colored layer 2J on the back surface side of the first substrate 2B.

A row electrode 2F and a column electrode 2 arranged to face each other
The voltage applied between G and G drives the chiral nematic liquid crystal layer 2E, the transition of its phase state is controlled, and display is performed. With this CL-LCD, display can be performed without using a polarizing plate.

The CL-LCD maintains the display state even when the power is cut off after the voltage is once applied to the extraction electrode group 2H on the second substrate 2C to set it in the predetermined display state. However, similarly, in the AF-LCD, it is necessary to apply a holding voltage to hold the display state.

Further, in the CL-LCD, in order to transfer the held display state to another display state, a predetermined voltage may be applied again. At this time, it is preferable to erase the entire display surface and then apply the voltage required for the next display.

That is, from the viewpoint of use, it is preferable to completely erase the immediately preceding display and then rewrite it with a new display. Normally, the selective reflection color is drawn by setting the entire display surface to the PL state, and the fine scattering state is set by setting the FC state, and the matte color (black paint) on the back surface side is displayed and displayed. (See Japanese Patent Laid-Open No. 2001-337314).

Regarding the cell structure, operating principle, manufacturing method, driving method and various uses of the chiral nematic liquid crystal display device, Japanese Patent Application No. 2001-10528 filed by the present applicant.
3, Japanese Patent Application No. 2001-388566, Japanese Patent Application No. 2001-38
9394, Japanese Patent Application No. 2001-398622, Japanese Patent Application No. 2001
-401597, Japanese Patent Application No. 2002-023903, and those techniques can be used in the present invention.

Next, a method of manufacturing the CL-LCD will be described. First, two substrates with a transparent conductive film made of ITO are prepared and etched so that the maximum interval is 10 μm, and about 160 stripe electrodes are arranged on each substrate. Then, after forming an electrically insulating layer on the electrode formation surface side of each substrate, a resin solution of polyimide is applied and baked to form an alignment film.

As an example, the surface of the alignment film can be used as it is without being rubbed. This 2
The substrates are arranged so that their stripe electrodes are orthogonal to each other, spacers with a diameter of about 4 μm are sprinkled between the facing surfaces, and a minute amount of about 4 μm on the four sides of the substrate except for the liquid crystal injection port. A peripheral sealing material made of epoxy resin containing glass fiber is applied, and two substrates are bonded together to produce a liquid crystal cell.

Next, a chiral agent is mixed with the nematic liquid crystal to prepare a chiral nematic liquid crystal composition. In addition,
The pitch can be adjusted by the type of liquid crystal material, the type of chiral agent, and the mixing ratio of the two. Then, after the chiral nematic liquid crystal composition is injected into the liquid crystal cell by using a vacuum injection method, the injection port is sealed with a photocurable resin, and the CL-LCD
To manufacture. The CL-LCD manufactured in this manner is used as a display element incorporated in a display device.

In the present invention, the CL-LCD is composed of two layers, and the dominant wavelengths of the two selective reflections are set so as to have a relatively complementary color relationship. For example, yellow and blue.
Then, yellow, blue, white as a mixed color of blue and yellow,
And four colors of a colored layer (black or the like) provided on the back side can be colored. Also, white has a beautiful chromaticity,
Good display like paper white can be performed.

In the case of a signboard device using the present invention,
As the screen size of the memory type display panel, a diagonal size of about 18 to 25 cm is easy to manufacture and convenient to handle. From the viewpoint of visibility, it is preferable that the display is further increased to provide an A4 (diagonal size of about 37 cm) display. In particular, it is preferably used for displaying a pop-up sign. In addition, it is preferably used for a public display that provides a semi-fixed display.

Example 1 In this example, a display device having a two-layer chiral nematic liquid crystal display element as a memory type display panel was used. With blue and yellow as the selective reflection colors,
Both were mixed so that white was developed, and then black was formed by the colored layer.

A notebook type personal computer was used as a management device. Bluetooth communication is adopted as a communication means, and a Bluetooth serial dongle (UB-6010 (trade name) manufactured by Tokyo Denshikaku Kogyo Co., Ltd.) is used as a wireless transmitter / receiver. 232C connection, serial dongle on the receiving side
Built into the display device.

A BPM file of an original image including graphic information was converted into display data for CL-LCD on a notebook type personal computer. The display information that is the transmission data is transferred to the Bluetooth serial dongle via the serial port. At this time, the data transmission rate is 115.
2 kbps, 1 stop bit, no parity, and transmission data was transferred 1 byte at a time.

The distance between the serial dongle on the transmitting side and the display device was set within about 10 m, and a lithium ion battery was used to supply power to the serial dongle. The radio wave transmitted from the transmission side serial dongle is displayed on the display device side Bl.
It was received by the uetothoth serial dongle. The received serial data is transferred to the screen display control FPGA of the display device. And FPG for screen display control
By A, the display screen was cleared and at the same time the serial data was stored in the memory 4 and the display screen was rewritten.

The power consumption during data transmission of the serial dongle is about 3 mW. Further, after transmitting the data, the display could be held by turning off the power of the display device. The display screen of the display device includes pop art, photos, animations,
I was able to freely express the character information of various fonts in four colors. Further, the original image could be automatically processed and converted into a four-color display for display.

(Example 1A) The system of Example 1 is realized by a suitable integrated circuit. The power consumption of the main circuit blocks and the entire system is as follows. With the following configuration, when operating for 0.5 hours every day, the current during operation is 93.
6mA (303mW), standby current is 0.26mA
(0.5118 mW).

Under this condition, if the nickel metal hydride battery "Metahigh 2000 series" manufactured by Panasonic Corporation is adopted as the battery, it can be operated for about 24 days. If there are two batteries (1900 mAh), 1900 mAh / (14
0mA * 0.5h + 0.337mA * 23.5h) = about 24 days.

Similarly, if the number of batteries is three, it can be used for about 36 days. The continuous usage time until the battery is replaced depends on how many times the display is rewritten on average.

A) AA type battery: 1900 mAh b) DC-DC converter: internal consumption current = 100 μA
(Efficiency 90% or more), 18V, 1.8V, 3.3V 3
Output c) Memory type liquid crystal display module (built-in drive IC): 1
8V × 1mA d) flash memory (AMD: Am29SL80)
0C): operating voltage = 1.8 V, 20 mA (during writing), 1 μA (during standby mode) e) H8S / 2238 as CPU: operating voltage = 3.3
V, current consumption = 20 mA (operating), 0.05 mA (standby) f) BT module (Bluetooth module): operating voltage = 3.3 V, 50 mA (operating), 0.
05mA (standby) g) FPGA (logic control circuit): operating voltage = 1.8
V, 10 mA (during operation), 100 μA (during standby).

(Example 1B) The circuit configuration of the system of Example 1 is realized by a more appropriate integrated circuit. The power consumption of the main circuit blocks and the entire system is as follows. With the following configuration, when operating for 0.5 hours every day, the operating current is 37.4 mA (123.8 mW), and the standby current is almost 0 mA (0.0158 mW).

Under this condition, if a nickel metal hydride battery "Metahigh 2000 series" manufactured by Panasonic Corporation is used as a battery, it can be operated for about 2 months. With two batteries, 1900mAh / 1900mAh /
(56.1mA * 0.5h + 0.047mA * 14h)
= It will be about 66 days.

Similarly, assuming that the number of batteries is three and the solar cells supply power for 9.5 hours during the standby time of one day, 1900 mAh / (37.4 mA * 0.5)
h + 0.0405mA * 14h) = It can be used for about 98 days or more. Depending on how many times the display of the liquid crystal module is rewritten on average per day, the continuous use time until the battery is replaced is determined. Note that this trial calculation assumes that the discharge efficiency of the battery is almost 100%.
FIG. 10 shows a circuit block diagram of this example.

A) AA type battery: 1900 mAh b) DC-DC converter: internal consumption current = 40 μA
(Efficiency 92% or more), 18V, 1.8V, 2.8V 3
Output c) Memory type liquid crystal display module (built-in drive IC): 1
8V × 1mA d) Flash memory: Operating voltage = 1.8V, 1mA
(During writing), 200 nA (during standby mode) e) MIPS system CPU (semi-custom IC): operating voltage = 1.8 V, current consumption <20 mA (during operation), about 1 μ
A (standby) f) BT module: operating voltage = 2 HV, 30 mA or less (operating), 0.005 mA (standby) g) FPGA (none) h) Power supply to the communication module part by solar cells (standby) ).

Example 2 FIG. 3 shows a display example 30 of the signboard device. This example is preferably used for a destination guidance display that displays the destinations of individuals installed in a building. The user name 31 is displayed in blue, the schedule information 33 is displayed in yellow and black, the graphic information 32 is displayed in blue, yellow, and black, and the background is a white background. Set the "Don't return home" part to yellow to make it easier to see.

When the user goes out of the building, the display information transmission system of this example is installed and used on a desk, a wall, a passage, or the like. Although it depends on the relationship with the distance at which the screen can be viewed, if the diagonal size of the screen is about 20 cm or more, the screen can be viewed sufficiently.

(Example 3) FIG. 4 shows a display example 40 of a signboard device placed in a posting area such as an apartment, a housing complex, a school building, a company, or a road. In this example, the title 41, the graphic information 42, the sign information 43, and the like can be continuously displayed for one month or more without external power supply. The "bulletin board" is blue, the other characters are black, and the background is white.
Since it is sufficient to maintain the display state as it is for a certain period,
If the CL-LCD is used, the display state can be set first and the display device can be used without providing a large power source. The power supply unit may be designed according to the frequency of rewriting the display state.

(Example 4) FIG. 5 shows a display example 50 of a signboard device that can be used in a supermarket, a convenience store, or the like. It is suitable for selling fresh foods, fruits and vegetables, souvenirs, etc. on an hourly basis. The signboard device can be easily installed without any wiring at a position easily visible inside and outside the store, and the display can be performed immediately.

Since the display information and the position of the signboard can be freely changed according to the change of time, the sales promotion effect is extremely large. In this example, the signature information 51 such as the name of the product, the graphic information 52, the origin information 54, etc. can be displayed. In this example, the "specialty tuna" is yellow,
The "time service" is shown in blue, and the graphic information 52 is shown in slightly pale blue. The production area information 54 is black and the background is a white background. The outline of the character is black. Furthermore, the display screen can be rewritten in a timely manner according to fluctuations / changes in product prices and sales conditions.

In this example, the sign board device can be installed semi-fixedly, and a desired power source can be built in the device,
A long-term continuous operation can be performed.

(Example 5) FIG. 6 shows a display example 6 of a signboard device in a store that provides services to individuals, such as a barber shop.
Indicates 0. It can also be applied to restaurants such as coffee shops and taverns. For example, it is an example of installing for business display outside the door. Store opening information 6 consisting of store name 61 and graphic information
2 can be displayed at the same time. The opening information 62 is expressed by mixing blue, yellow, and gray tones.

Further, other desired graphic information, a recommended product on the day, a part of a recommended menu, and the like can be displayed. There is an advantage that the installation position can be freely moved.

(Example 6) FIG. 7 shows a display example 70 used as a public display device. It is installed in the passageways and bulletin areas of stations, airports, and downtown areas where many people are scattered, and is used exclusively for advertising. Timetable, exchange rate of the day,
Suitable for displaying news highlights, etc.

The display information is designed so that it is easy to visually recognize, including the graphic information which is designed to be easy to see, and combined with other character information. It is preferable to perform multi-color display. The graphic information that visualizes the existence of a parking lot is displayed in blue. The character information indicating the place is displayed in yellow.

Particularly preferably, full color display is performed. Further, if the built-in power supply is set to a certain capacity or more and the number of times of rewriting is set appropriately, it can be used for a long period of time and maintenance is easy. Also in this example, a solar cell can be used together.

When conditions such as time service can be changed daily, the display information can be displayed on the display device in real time. The user can rest assured to decide whether or not to use depending on this displayed information.

(Example 7) FIG. 8 shows a display example 80 when used as an electronic shelf label. It is intended to sell batteries, and the graphic information of the "battery" that is the product to be sold 8
2A, barcode information 82B, image information 82C for attracting the user's attention, and price information 81 are displayed at the same time. Express using blue, yellow, black, and white.

It can be used for about 3 months or more by the auxiliary power supply to the internal circuit by the built-in button cell and solar cell. If the frequency of rewriting per day is low, it can be used for more than one year.

Example 8 FIG. 9 shows a display example 90 when used as a large public display device. Memory type display panel 2
A large-sized display surface is formed by connecting a large number of display devices provided with. Although there is a joint that cannot be displayed in the adjacent portion between the display surfaces, it is practically sufficient as a display on one large screen.

Also in this example, it is preferable to use a chiral nematic liquid crystal display element as in the above example. It can be used to advertise outdoor theaters, stadiums, stations and buildings. Low power consumption and easy maintenance.

It is possible not only to display each of the memory type display panels connected in series one by one, but also to drive and display as if they were one display panel as a whole. Each of the memory type display panels 1 arranged in the vertical direction (column side) and the horizontal direction (row side) that configures the screen
The diagonal size of the sheet is 10-25 cm, and it is 100-
About 400 sheets are arranged side by side to manufacture a super large screen. The standards and specifications are the same, and large screen display is performed by appropriately driving. It is suitable for use in baseball fields, soccer fields, large-scale event venues, outdoor plazas, and building wall displays.
Further, even if the power is turned off, the display state can be maintained, so that the energy saving effect is great.

The present invention is not limited to the example described above, but the graphic information to be displayed on the memory type display panel and other display information are combined and the display information is transmitted by the non-contact type communication means. ,
It is possible to provide a display information transmission system according to various uses and conditions. Also, by optimizing the design of the power supply unit according to each application, it is possible to perform long-term continuous operation without replacing the built-in power supply.

[0075]

According to the present invention, when displaying image information, it is possible to easily provide identification, visibility, and other excellent display. Further, the graphic information can be displayed alone or in combination with the character information. Then, it is possible to display information with good visibility and good appearance.

Further, since the display is performed by using the memory type display, a large additional device such as a power supply and wiring is not necessary for the power source and the like in the display device. Especially, in the case of battery drive, There is an excellent effect that the battery life can be extended. In particular,
In addition, the transmission of image information from the wireless transmission side to the display device side is B
The effect is remarkable when using the Bluetooth communication.

Further, according to the present invention, the display device can be reduced in size and weight and can be used as a stand-alone type display time device. In addition, it is possible to realize a function of displaying food origin information and standardized bar code information together. Further, in the present invention, for a plurality of display devices that need to rewrite the display information, the necessary display information is transmitted at substantially the same time in a timely manner, and the corresponding receiving unit receives the desired display information. Can be displayed on each display device. According to the present invention, it is possible to save energy in the entire system. Also, the maintenance and handling of the display device becomes extremely easy.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an exhibition information system of the present invention.

FIG. 2 is a schematic cross-sectional view of an example of CL-LCD.

FIG. 3 is an explanatory diagram of a display example 30 (destination bulletin board) of the present invention.

FIG. 4 is an explanatory diagram of a display example 40 (public display device) of the present invention.

FIG. 5 is an explanatory diagram of a display example 50 (product sale) of the present invention.

FIG. 6 is an explanatory diagram of a display example 60 (for service provision) of the present invention.

FIG. 7 is an explanatory diagram of a display example 70 (advertisement) of the present invention.

FIG. 8 is an explanatory diagram of a display example 80 (electronic shelf label device) of the present invention.

FIG. 9 is an explanatory diagram of a display example 90 (large public display device) of the present invention.

FIG. 10 is a circuit block diagram of Example 1B of the invention.

[Explanation of symbols]

1: Drive circuit 2: Memory type display panel 3: Memory 4: Control circuit 5: Receiver circuit 6: Transmission circuit 7: Image memory 8: Scanner 9: CPU 10: Display 11: Communication means 20: Management device 25: Display device

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G06K 19/07 G09F 9/35 5G435 G07G 1/01 301 G06K 19/00 H G09F 9/35 Q (72) Inventor Masayuki Iwasaki 1-21 Asahi Glass Stock Association, Shinjuku-ku, Tokyo In-house (72) Inventor Kaoru Ota 1-21 Asahi Glass Stock Association, Shinjuku-ku, Tokyo In-house (72) Inventor Satoshi Niiyama Kanagawa-ku, Yokohama-shi, Kanagawa 1150 Hazawa-machi Asahi Glass Co., Ltd. F term (reference) 2H088 GA03 GA04 HA06 HA10 JA08 JA14 JA20 MA02 MA05 MA06 MA16 3E042 BA05 CE07 EA01 5B035 AA01 AA11 BA01 BB03 BB09 BB11 ABB KA11 CA24 CA15 CA24 CA15 CA24 CA15 CA24 CA15 CA24 CA15 CA24 CA15 CA24 CA15 CA24 CA18 CA18 CA15 CA24 BA09 BA49 CA01 CA02 HA01 HA10 5G435 AA14 BB12 CC12 LL19

Claims (6)

[Claims] 1. A display device having a memory type display panel, a drive circuit, a memory, a display control circuit and a reception circuit, and a management device having a control circuit and a transmission circuit. Display information is transmitted from the transmission circuit to the reception circuit by a non-contact type communication means, the received display information includes graphic display information, and at least a part of the graphic display information is used to display a memory type display panel. A display information transmission system configured to display. 2. A non-contact type communication means is Bluetooth.
The display information transmission system according to claim 1, which is h (registered trademark) communication. 3. The display information transmission system according to claim 1, wherein the memory type display panel is a chiral nematic liquid crystal display element, and multicolor display of four or more colors is performed. 4. An electronic shelf label device in which the display information transmission system according to claim 1, 2 or 3 is used. 5. A signboard device in which the display information transmission system according to claim 1, 2 or 3 is used. 6. A public display device in which the display information transmission system according to claim 1, 2 or 3 is used.