JP2006030559A - Display control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rationally perform an individual document management based on user authority in the same environment as document browsing on a paper medium by changing a display mode of a document image using an electronic paper EP which displays and holds the document image in rewritable way. <P>SOLUTION: When the electronic paper EP transmits user specific information inputted from an inputting means 8(10) is transmitted to an server 60 by an ID supplying means 5a, display mode information which is set for the user based on a management table 63 is returned from a control information supplying means 61b in the server 62. In the electronic paper EP, a mask driving means 45 makes a mask layer 41 in a partially transparent state based on the display mode information and a part of the document image which is held in a display section 2 of a lower layer can be seen through from the transparent section and the document image according to the user authority is displayed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technique of using a display recording medium that displays and holds a document image in a rewritable manner, in a manner in which the display form of the document image on the display unit is preset for each user.

Documents are created from various media data such as text data, graphic data, image data, etc. by data processing using a computer. Documents created in such an electronic data format display the images on a computer display. Or printed on paper, which is a paper medium, for browsing.
Here, with regard to document data, as a document image display recording medium that can replace paper in recent years, electronic paper that is flexible and thin like paper and can display and hold image information in a non-powered state on a display unit. Has been developed.

  According to such electronic paper, it is possible to rewrite and use the image information displayed and held by the display unit, and it is also possible to hold various data in the memory and to send and receive externally, For example, multiple electronic papers that display and hold document images can be viewed side-by-side on a desk, viewed by hand, viewed by circulation among multiple users, stacked, bundled, or handed to others. It is possible to browse and use the document contents composed of electronic data without stress in the natural behavior of human beings such as.

Electronic paper is a device having a display unit that displays and holds a document image in a non-powered state, for example, and can be roughly classified according to a writing format of image information on the display unit, based on electronic data. There are self-writing type electronic paper having a function of writing on a display unit, and optical writing type electronic paper that holds image information projected based on electronic data on a display unit.
Unlike the paper, such electronic paper can erase or overwrite the image information displayed and held on the display unit, and can rewrite and update the image information displayed and held so that it can be used repeatedly. Use promotion is also desired from the viewpoint of saving resources.

A document processing apparatus has been proposed that manages information on various events that occur in the process of document creation and browsing, and supports communication between users based on the management information. (See Patent Document 1).
JP-A-7-121529

Conventionally, when a document image is printed on paper, the page of the document is displayed as an image. This is quite natural, but depending on the environment for browsing and using the document, displaying the document image as it is causes a problem.
For example, considering the document browsing environment in a company, it is common for each employee (each user) to have the authority to view a document document. A system and system for managing individual document documents must be established.

  In some cases, the viewing authority as described above may be given to document parts included in the same document page. In such a case, a document in which the document page is printed as it is and a certain document page includes a certain document page. A document with different contents printed and displayed in a fixed manner based on the same document data is scattered, such as preparing a document that is deleted and printed.

  The present invention has been made in view of the above-described conventional circumstances, and uses a display recording medium that displays and holds a document image in a rewritable manner. By changing the display mode of the document image for each user, the above-described problem can be rationalized. It is an object of the present invention to promote the use of a display recording medium represented by electronic paper.

In the present invention, as a display recording medium, typically, for example, a display unit that displays and holds a document image in a non-powered state, a storage unit such as a memory that holds electronic data of the displayed and held document, and a memory Electronic paper having a communication unit that transmits and receives data held in the external to the outside can be used.
However, since the display recording medium according to the present invention includes various functional means according to functions set as described later, as a basic electronic paper provided with these necessary functional means. Need only be able to display and hold the document image in a non-powered state and to rewrite the document image.

An important gist of the present invention is to specify a user who browses a display recording medium, and to display a document image on the display recording medium in a display mode corresponding to the user. Can be implemented in the display recording medium itself, or in a format in which the management of the notation mode for each user is performed by the server to control the display mode by the display recording medium.
In addition, the display mode of the document image according to the present invention is such that the user visually recognizes the whole or part of the document image held in the display unit, in addition to a format in which the document image itself held in the display unit is changed according to the user. As a result, there is a format in which the display mode is changed by making it impossible to perform this, and in such a format, it is also possible to use optical writing type electronic paper as will be described later.

Specifically, the present invention is a display recording medium having a display unit that displays and holds a document image in a rewritable manner, and includes input means for receiving specific information for specifying a user, and each user based on the received specific information. Display control means for displaying a document image displayed and held on the display unit in a preset manner.
That is, regardless of whether the management relating to the notation mode for each user is performed by the display recording medium itself or separately by a server, for example, the user touches a fingerprint sensor constituting the input means and specific information (fingerprint) is input. Then, when the user operates a key button constituting the input unit and the user ID is input, the document image is displayed on the display unit in a display mode corresponding to the specific information received by the input unit.

More specifically, the present invention is a display recording medium having a display unit for displaying and holding a document image in a rewritable manner, input means for receiving specific information for specifying a user, and on the surface side of the display unit Mask means that is provided in an overlapping manner and is driven to switch between the transmissive state and the non-transmissive state, and the mask means is driven in a manner preset for each user based on the received specific information, and is displayed and held on the display unit. Mask driving means for displaying a document image.
That is, regardless of whether the management related to the notation mode for each user is performed on the display recording medium itself or separately on the server, the mask means is totally or partially transparent and opaque in a mode corresponding to the received specific information. The document image is displayed on the display unit in a display mode preset for each user.
For example, a liquid crystal panel that can be switched between a transmissive state and a non-transmissive state can be used as the mask means, and the mask driving means applies a voltage to the electrodes of the liquid crystal panel to transmit the liquid crystal panel completely or partially. What is necessary is just to switch to a state and an impermeable state.

More specifically, the present invention provides a display record having a display unit for displaying and holding a document image composed of the partial document images in a configuration in which a plurality of layer layers for transparently displaying and holding the partial document images are transparently stacked. A storage means for holding partial document data constituting a document image, a writing means for writing the partial document image in the layer layer based on the partial document data held in the storage means, and a user Input means for receiving the specific information, and write control means for selecting a layer layer in which the partial document image is written by driving the writing means in a mode preset for each user based on the received specific information. .
That is, whether or not the partial document image is written to the layer layer in a mode corresponding to the received specific information regardless of whether the management related to the notation mode for each user is performed on the display recording medium itself or separately on the server. The selection control is performed to display the document image on the display unit in a display mode (entire document image, only partial document image) preset for each user.
For example, as will be described later, a display unit is configured by stacking a plurality of transmissive liquid crystal display panels represented by ferroelectric liquid crystals, and partial document images written on the respective transmissive liquid crystal display panels are superimposed. The entire document image may be displayed by viewing.

  Here, when the management related to the notation mode for each user is performed by the server, specifically, the present invention relates to a display recording medium having a display unit that displays and holds a document image in a rewritable manner, and a display on the display unit. A display control system including a server that manages document images to be held in relation to a user, wherein the server manages user management that holds display control information for specifying a display mode preset for each user And a control information providing means for providing corresponding display control information held by the user management means to the display recording medium based on information for specifying a user acquired from the display recording medium. The medium is provided from an input unit that receives specific information for specifying a user, a specific information providing unit that provides the received specific information to the server, and a server. Based on the acquired display control information, control information acquisition means for acquiring the display control information, mask means provided on the surface side of the display unit and driven to be switched between a transmissive state and a non-transmissive state, and And a mask driving means for driving the mask means to display a document image displayed and held on the display unit.

  That is, in the display recording medium, when the input unit receives the specific information for specifying the user, the specific information providing unit transmits the specific information to the server and provides it. In the server, the user management means holds display control information for specifying a display mode preset for each user, and the control information providing means is based on the specific information received and acquired from the display recording medium. Corresponding display control information held by the user management means is transmitted to the display recording medium of the transmission source and provided. In the display recording medium, the control information acquisition unit acquires the display control information provided from the server, and the mask driving unit drives the mask unit based on the display control information to display the document image displayed and held on the display unit. indicate. Thus, as described above, the mask unit is driven in a transparent state and a non-transparent state in a manner corresponding to the received user specifying information, and the document is displayed in a display manner preset for each user. The image is displayed on the display unit.

  In addition, when the management related to the notation mode for each user is performed by the server, specifically, the present invention is configured to transparently overlap a plurality of layer layers that display and hold the partial document image in a rewritable manner. A display control system comprising: a display recording medium having a display unit that displays and holds a document image composed of partial document images; and a server that manages a document image displayed and held on the display unit based on a user. User management means for holding display control information for specifying a display mode preset for each user, and user management means for holding based on information for specifying a user acquired from the display recording medium Control information providing means for providing the display control information to the display recording medium, and the display recording medium stores specific information for specifying the user. Holding input means, specific information providing means for providing the received specific information to the server, control information acquiring means for acquiring the display control information provided from the server, and data of partial documents constituting the document image Storage means, writing means for writing a partial document image in a layer layer based on partial document data held in the storage means, and a layer layer in which the partial document image is written by driving the writing means based on the acquired display control information And a writing control means for selecting.

  That is, in the display recording medium, the input unit receives specific information for specifying the user, and the specific information provided by the specific information providing unit is provided to the server. In the server, the user management means holds display control information for specifying a display mode preset for each user, and the control information providing means is based on the user specifying information acquired from the display recording medium. Corresponding display control information held by the user management means is provided to the display recording medium. In the display recording medium, the control information acquisition unit acquires the display control information provided from the server, and the write control unit drives the writing unit based on the display control information to select a layer layer on which the partial document image is written. Then, based on the partial document data held in the storage means, the writing means causes the partial document image to be written in the layer layer. As in the above, by selecting and controlling whether or not to write the partial document image to the layer layer in a manner corresponding to the received specific information, the document image is displayed in a display manner preset for each user. Display on the screen.

  Here, in the present invention, the document data provided by the server may be managed for each user. When managing such document data for each user, the present invention specifically includes document images. A display control system comprising: a display recording medium having a display unit that displays and holds rewritable data; and a server that provides document data for causing the display unit to display and hold a document image on the display recording medium. Data management means for holding document data preset for each user, and corresponding document data held by the data management means based on information for identifying a user acquired from the display recording medium, are displayed on the display recording medium. Document data providing means for providing, and a display recording medium for specifying a user Input means for receiving fixed information, specific information providing means for providing the received specific information to the server, document data acquiring means for acquiring the document data provided from the server, and a display unit for the document image based on the acquired document data Display control means for setting the display mode in the mode set in advance for each user based on the specific information.

  That is, in the display recording medium, the input unit receives specific information for specifying the user, and the specific information provided by the specific information providing unit is provided to the server. In the server, the data management unit holds document data set in advance for each user, and the corresponding document stored by the data management unit based on the user specifying information acquired from the display recording medium by the document data providing unit. Data is provided to the display recording medium. In the display recording medium, the document data acquisition unit acquires the document data provided from the server, and based on the specific information that has received the display mode on the display unit of the document image based on the document data acquired by the display control unit. It is set as a mode preset for each user. Thereby, in addition to the control of the display mode of the document image by the drive control of the mask means and the layer layer selection control, the document image itself to be displayed is controlled for each user.

  According to the present invention, since the display mode of the document image is changed for each user by using a display recording medium that displays and holds the document image so as to be rewritable, an environment equivalent to document browsing on a paper medium is realized. In addition, it is possible to eliminate the necessity of constructing a management system and system for individual document print documents based on user authority, and to avoid a situation where document print documents based on the same document data are scattered.

The present invention will be specifically described based on an example.
First, a basic configuration of an example of a display recording medium used in the present invention will be described with reference to FIGS.
The display recording medium shown in FIGS. 8 to 13 is a medium called electronic paper, and is roughly classified according to the recording method of the document image, and is shown in FIGS. 11 to 13 and the self-writing type shown in FIGS. There is an optical writable type, which is a thin paper-like device that can display and hold a document image in a non-powered state, and can rewrite the document image, so-called electronic paper regardless of the type.

FIG. 8A shows the self-writing electronic paper EP viewed from the front, and FIG. 8B shows the self-writing electronic paper EP viewed from the side. The illustrated electronic paper EP has a display unit 2 that displays and holds document images and a processing unit 3 that controls processing of electronic data. FIG. The functional part is also shown.
The self-writing type electronic paper EP is a flexible thin display device having a size like, for example, A4 size paper, and the processing unit 3 is provided on one piece of the display unit 2 occupying most of the area. In addition, the magnitude | size of the display part 1 shall be a magnitude | size according to a use.

  The processing unit 3 includes a driver 4 that drives the display unit 2, a communication unit 5 such as a wireless unit for communicating with the outside, a memory 6 that holds electronic data in a readable and writable manner, a driver 4, a communication unit 5, and a memory 6. A battery 7 for supplying driving power, an operation unit 8 such as a key button for receiving an operation input such as a document image display switching instruction from a user, and a processor (CPU that performs various processes according to overall control of these functional means and program settings ) 9 is provided.

Here, in the present invention, in order to accept information for identifying the user from the user, the electronic paper EP used in the present invention accepts a user ID as user identification information from the operation unit 8 or a known fingerprint sensor 10. Is provided to accept fingerprint data as user identification information.
In the electronic paper EP used in the present invention, the CPU 9 exchanges various information with a server 9 described later, a function for controlling display of a document image by the display unit 2 including mask and layer control described later. A function, a function for performing user management to control a display mode for each user, and the like are configured according to the embodiment of the present invention.
Further, in the electronic paper EP used in the present invention, in order to control the display mode of the document image by the display unit 2, as will be described later, a mask is provided on the surface side of the display unit 2, or a plurality of display units 2 themselves are provided. A multi-layer structure in which transparent display layers are stacked.

The self-writing type electronic paper EP transmits / receives various information such as document data by communicating with an external device having a wireless communication function (server-side communication device to be described later) through the communication unit 5. Information data can be held in the memory 6.
In the self-writing type electronic paper EP, the driver 4 can display a document image on the display unit 2 based on the document data held in the memory 6, and the document image is displayed on the display unit 2 even if the driving power of the driver 4 is removed. It has a function of continuously holding the document image in the display state and changing a document image to be displayed and held in accordance with a switching instruction from the operation unit 8 based on the document data.

  As shown in FIG. 10 showing the cross-sectional structure of the display unit 2, the self-writing type electronic paper EP has fine colored particles (white particles 21 and black particles 22 in the illustrated example) that are used as toner in the copying machine. Is sealed between a pair of front and back electrodes 23 whose surface side is transparent, and is sandwiched between a pair of front and back film substrates 24 whose surface side is transparent. An air layer is formed between the electrode layers 23 so that the colored particles 21 and 22 can freely move, and an insulating layer 25 that prevents contact with the colored particles 21 and 22 is provided on the matrix-like electrode layer 23. It has been. Note that a color display can be realized with a simple structure by using a color filter.

  The self-writing electronic paper EP is in a state where no voltage is applied to the electrode 23 as shown in FIG. 9 showing the operation principle of the display unit 2 (however, the electrode 23 is charged to the polarity at the previous driving). The negatively charged white particles 21 accumulate on the back side, while the positively charged black particles 22 accumulate on the front side. When the display unit 2 is viewed from the front side, the display unit 2 is observed. Becomes a black state. And if the electrode polarity of the required part of the matrix according to the image information displayed by the operation of the driver 4 based on the data stored in the memory 6 is reversed, the positional relationship between the white particles 21 and the black particles 22 is switched. Thus, a document image based on the contrast between the white particles 21 and the black particles 22 is displayed on the display unit 2. By operating the driver 4 based on different data, the image information displayed on the display unit 2 can be switched depending on the contrast between the white particles 21 and the black particles 22 and can be reused many times.

Accordingly, the self-writing type electronic paper EP has the property of holding the image information displayed on the display unit 2 with no power supply in addition to the property of being thin and flexible like paper, so that the display can be used like paper. It is a recording medium.
Here, the electronic paper EP has a function of self-rewriting the document image on the display unit 2 based on the document data held in the memory 6, but in the present invention, the document image projected from the outside is displayed. It is also possible to apply optical writing type electronic paper of a type that keeps displaying and holding even in a non-powered state. When optical writing type electronic paper is used, a mask for changing the display mode is provided on the surface side of the optical writing type display unit 2, and the mask is driven by the function constituted by the CPU as described above. May be changed over or partially so as to be transparent or non-transparent to change the range in which the user can visually recognize the document image displayed and held by the display unit 2.

  There are various types of optical writable electronic paper, but any of them has an optical writable display section as described later, and the optical writable electronic paper used in the present invention implements the present invention. In order to do this, it has a processing unit having functional means equivalent to the above-described self-writing type, and executes processing other than the self-rewriting processing of the document image on the display unit.

For example, as shown in FIG. 11, the optical writable electronic paper EP displays a document image on the liquid crystal panel 29 of the image writing apparatus, and applies the voltage from the external power source to the electrode 11 while applying the voltage from the external power source to the liquid crystal. By irradiating the panel 29 with light, the image information displayed on the liquid crystal panel 29 can be transferred to the display unit 2 and displayed and held.
That is, the optical writable electronic paper EP transfers a projected document image to the display unit 2 by applying a voltage to the electrode 11, and holds the document image in a display state even after the voltage applied to the electrode 11 is removed. It has the function to continue.
In the present invention, in the case where a mask for changing the display mode is provided on the surface side of the optical writing type display unit 2, the document image may be projected with the mask entirely in a transmissive state.

  The optical writable electronic paper EP includes an organic photoconductive material layer (organic photoconductive layer) 30 and a liquid crystal display material layer used in a copying machine, as shown in FIG. (Microencapsulated cholesteric liquid crystal layer) 31 is combined, these layers are sandwiched between a pair of front and back transparent electrodes 32, and this laminate is sandwiched between a pair of front and back transparent substrate films 33. In this configuration, the cholesteric liquid crystal layer 31 reflects white light, and the light passes through the liquid crystal layer 31 and is absorbed by the black layer 34 provided between the cholesteric liquid crystal layer 31 and the organic photoconductive layer 30. Black display monochrome image display is possible. Furthermore, since cholesteric liquid crystal has a characteristic of interference-reflecting color light according to the helical pitch, color display can be realized with a simple structure by forming the cholesteric liquid crystal layer 31 by laminating liquid crystals having different helical pitches. It is also possible.

  Then, the optical writing type electronic paper EP displays, for example, an image to be transferred on the dimming element panel (light emitting panel) 29 for image writing and displayed on the display unit 2 as shown in FIG. When projection is performed and a voltage is applied to the electrode 11, the intensity of light is instantaneously converted into a reflection density and the projection image is held. The image information held in the display unit 2 can be erased by applying an erasing voltage to the electrode 11, and the optical writable electronic paper EP can be reused many times by repeating writing and erasing. In addition, the optical writing type electronic paper EP does not perform such an erasing process, but applies the voltage to the electrode 11 as described above to project a new image, thereby holding the image information held in the display unit 2. Can be overwritten and can be reused again and again by such overwriting.

  Therefore, the optical writing type electronic paper EP has the property of holding the image information transferred by projecting the image without power in addition to the property of being thin and flexible like paper, so that it is used for a printer or a copying machine. It is a display recording medium that can be used like paper and can be reused repeatedly.

Note that the present invention can also be applied to electronic papers other than formats such as self-writing type electronic paper and optical writing type electronic paper. For example, the electronic paper can be loaded into an external rewriting device and the display unit can be self-writing type. The image information may be written electronically. That is, the self-writing electronic paper is an example of an electronic paper that does not require an external image writing device, and the optical writing electronic paper is an example of an electronic paper that requires an external image writing device. .
In addition, as the display unit 2 of the electronic paper EP, a liquid crystal having a memory property typified by a ferroelectric liquid crystal, an electrophoretic method in which a charged particle is moved to switch a display, and a charged particle is rotated for display. A particle rotation method for switching the display, a magnetophoresis method for switching the display by moving particles by magnetism, a thin battery driven thin liquid crystal or an EL element may be used.

FIG. 1 shows a configuration of an electronic paper EP as a display recording medium according to an example of the present invention. In the following description, an example using self-writing electronic paper EP is shown, but optical writing electronic paper EP can also be used.
The electronic paper EP illustrated in FIG. 1 is provided with a mask layer 41 that is driven to be switched between a transmissive state and a non-transmissive state on the surface side of the display unit 2. In addition to the writing function (not shown in FIG. 1), the user management means 42 for managing the display mode for each user is constituted by the CPU 9, the memory 6 and the like, and is held by the display unit 2. The display control means 43 for controlling the display mode of the document image is configured by the CPU 9, the battery 7 serving as a drive voltage source, and the like.

As shown in FIG. 2, the user management unit 42 stores setting information corresponding to the user based on a table in which preset user information is recorded and user identification information input from the operation unit 8 or the sensor 10. Authentication means 44 to obtain.
In the table shown in FIG. 2, an area for identifying the user ID number and making the mask layer 41 transparent for each user is set in advance, and the authentication unit 44 is based on the user ID number received from the operation unit 8. Alternatively, based on the user ID number converted from the fingerprint data received from the sensor 10, area coordinates corresponding to the user ID are acquired and provided to the display control means 43.
When obtaining the user ID number from the fingerprint data, an association table in which the fingerprint data and the user ID number are associated and recorded in advance is provided in the authentication unit 44.

The display control unit 43 includes a mask driving unit 45 that drives the mask layer 41 in a transmission or non-transmission state, and controls the driving process by the mask driving unit 45 in accordance with the input area coordinate information, whereby the mask layer 41 is controlled. Or the mask layer 41 is partially transmissive or non-transmissive.
The mask layer 41 is, for example, a liquid crystal panel having matrix drive electrodes. By switching the drive voltage applied to the drive electrodes by the mask drive means 45, the mask layer 41 is completely or partially transmissive or non-transmissive as described above. It is made transparent.

In FIG. 3, three users A, B, and C corresponding to user ID numbers U-ID1, U-ID2, and U-ID3 in FIG. 2, respectively, browse document images using the electronic paper EP shown in FIG. The display mode when performing is shown.
The display unit 2 covered with the mask layer 41 includes a memo of March 8, 2004, a memo of March 10, 2004, and a March 12, 2004, as shown in FIG. A document image page in which memos are described in order is displayed and held.

  When information specifying the user A is input from the operation unit 18 or the sensor 10, the user management unit 42 inputs the transparent area coordinates (start point, end point) corresponding to the user to the display control unit 43, and the display control unit 43. Drives the portion of the mask layer 41 corresponding to the transmission area coordinates to the transmission state. As a result, as shown in FIG. 3A, only the portion (start point (0, 0), end point (210, 100)) set for the user of the mask layer 41 is driven to the transmissive state, A part of the document image displayed and held on the display unit 2 from the transparent area 41a (a memo on March 8, 2004) is displayed.

  When information specifying the user B is input from the operation unit 18 or the sensor 10, the user management unit 42 inputs the transparent area coordinates (start point, end point) corresponding to the user to the display control unit 43, and performs display control. The means 43 drives the portion of the mask layer 41 corresponding to the transmission area coordinates to the transmission state. As a result, as shown in FIG. 3B, only the portions (start point (0, 100), end point (210, 200)) set for the user of the mask layer 41 are driven to the transmissive state. A part of the document image displayed and held on the display unit 2 from the transparent area 41a (memo of March 10, 2004) is displayed.

  Further, when information specifying the user C is input from the operation unit 18 or the sensor 10, the user management unit 42 inputs the transparent area coordinates (start point, end point) corresponding to the user to the display control unit 43, and the display control is performed. The means 43 drives the portion of the mask layer 41 corresponding to the transmission area coordinates to the transmission state. Thereby, as shown in FIG.3 (c), the part (start point (0,100), end point (210,300)) set with respect to the said user of the mask layer 41 is driven to a permeation | transmission state, A part of the document image displayed and held on the display unit 2 from the transparent area 41a (all memos from March 8, 2004 to March 10, 2004) is displayed.

Therefore, since the display mode of the document image held in the display unit 2 is changed for each user who uses the electronic paper EP, information that can be browsed by the user can be managed according to the authority given to the user. .
In the above example, the mask layer 41 is partially driven and controlled to be in a transmissive state or non-transmissive state. However, the mask layer 41 may be entirely driven and controlled to be in a transmissive state or non-transmissive state. In addition, it may be managed whether or not a document can be browsed for each user.

FIG. 4 shows a configuration of an electronic paper EP according to another example of the present invention, and the electronic paper EP is configured by three display layer layers 2a, 2b, and 2c provided with the display unit 2 stacked thereon. It is a thing.
Each of the layer layers 2a, 2b, and 2c is a panel similar to the self-writing display unit 2 in which a document image is written by the driver 4 based on document data as described above. Note that at least the two layer layers 2b and 2c superimposed on each other are transparent so that a partial document image written in the lower layer layer can be seen through from the front side.

Further, the user management means 42 of this example has a table in which a layer layer that is identified by a user ID number and writes an image for each user is set in advance, and the authentication means 44 is provided from the operation unit 8 or the sensor 10. Based on the input user identification information, setting layer information corresponding to the user is acquired from the table and input to the display control means 43.
As shown in FIG. 5, the document data held in the memory 6 for writing the document image is composed of partial document data d1, d2, and d3 by a document ID or the like to form a document for one page. The layer control data d that defines the writing position in the page of the partial documents d1, d2, and d3 is added.

The display control means 43 of this example includes a writing means 46 for writing partial document images based on the partial document data d1, d2, and d3 to the layer layers 2a, 2b, and 2c, respectively, and a writing means 46 according to the set layer information. Write control means 47 for controlling whether to perform write processing on the layer layers 2a, 2b, and 2c.
That is, in this example, a partial document image for each layer layer is written and displayed based on the layer information set for each user, thereby displaying a document image displayed through each layer layer. Is changed.

FIG. 5 shows an aspect of writing and displaying on each layer layer based on document data including data for each layer (partial document data) d1, d2, and d3.
The document data displays a document image page D in which a memo on March 8, 2004, a memo on March 10, 2004, and a memo on March 12, 2004 are described in order, The layer 1 data d1 is the partial document data of the memo part of March 8, 2004, the layer 2 data d2 is the partial document data of the memo part of March 10, 2004, and the layer 3 data d3 is the March 2004 This is the partial document data of the 12th memo part.

  The writing means 46 writes an image based on the layer 1 data d1 to the layer layer 2a, writes an image based on the layer 2 data d2 to the layer layer 2b, and writes an image based on the layer 3 data d3 to the layer layer 2c. The memo part of March 8, 2004 is displayed and retained in the layer layer 2a, the memo part of March 10, 2004 is displayed and retained in the layer layer 2b, and the memo part of March 12, 2004 is retained in the layer layer 2c. Display is retained.

  Therefore, when information specifying a user is input from the operation unit 18 or the sensor 10, the user management unit 42 inputs layer information to be written corresponding to the user to the display control unit 43, and the display control unit 43 According to the layer information, the partial document image is written to the layer layer.

  That is, based on the layer information set for each user, for example, only the layer layer 2a is written to the user A and only the memo part of March 8, 2004 in the document D is displayed. User B displays a one-page document D that is written through all the layer layers 2a, 2b, and 2c and is displayed through the memo portion of March 8, 2004 to March 12, 2004. Can be done. Therefore, since the display mode of the document image displayed on the display unit 2 is changed for each user who uses the electronic paper EP, information that can be browsed by the user can be managed according to the authority given to the user. .

FIG. 6 shows a configuration of a display control system according to an example of the present invention.
In the above example, the electronic paper EP itself manages user information and changes the display mode for each user. However, in the display control system according to the present example, the server 60 communicates user information with the electronic paper EP. I manage. In this example, the server 60 manages the document data for display provided to the electronic paper EP according to the setting for each user.
In this example, the case where the self-writing type electronic paper EP whose display mode is changed by the mask layer 41 is used will be described. However, as is apparent from the above description, the display unit 2 is composed of a plurality of layer layers. Writeable electronic paper EP can also be used.

The display control means 43 of the electronic paper EP controls the transmission / non-transmission driving of the mask layer 41 by the mask driving means 45, and also displays the display unit 2 of the driver 4 based on the document data acquired from the server 60 corresponding to the user. Controls the writing process.
Also, the ID providing means 5a for transmitting the user specifying information input from the operation unit 8 or the sensor 10 to the server 60 by the communication unit 5 and the CPU 9 of the electronic paper EP, and the display mode control information transmitted from the server 60. Control information acquisition means 5b for receiving the document data, and data acquisition means 5c for receiving the document data transmitted from the server 60.

  On the other hand, the server 60 includes a communication device 61 that forms a communication interface with the electronic paper EP, and a server main body 62 that manages display modes and documents for each user. The communication device 61 and the server main body 62 may be configured as an integrated device, or a part of the configuration such as the database is provided as another server on the network, and such a remote server is also configured. It is good also as a structure of the form included as.

The communication device 61 includes an ID acquisition unit 61a that receives user identification information transmitted from the electronic paper EP, and a control information provision unit 61b that transmits display mode control information input from the server body 62 to the electronic paper EP. And data providing means 61c for transmitting document data inputted from the server main body 62 to the electronic paper EP.
As shown in FIG. 7, the server main body 62 has a management table 63 in which area information for making the mask layer 41 transparent for each user and an ID of a document to be provided are set in advance, and a plurality of document data as document IDs. A database 64 stored in association with each other, and an authentication unit 65 that acquires setting information (transparent area and document ID) corresponding to the user from the management table 63 based on the user specifying information transmitted from the electronic paper EP. have.

According to the system of this example, when the user specifying information is input from the operation unit 8 or the sensor 10 in the electronic data EP, the ID providing unit 5a transmits the user specifying information.
In the server 60, when the user specifying information is received by the ID acquisition unit 61a, the authentication unit 65 corresponds based on the user ID number included in the user specifying information (or the user ID number converted from the fingerprint data as described above). The transmission area coordinates are acquired, and the transmission area coordinate information is transmitted to the electronic paper EP by the control information providing unit 61b. At the same time, the authentication unit 65 obtains the document data of the corresponding document ID from the database 64 based on the user ID number, and the data providing unit 61c associates the document data with the transparent area coordinate information of the same table entry. Send to electronic paper EP.

In the electronic paper EP, the transparent area coordinates and the document data transmitted from the server 60 are received by the control information acquisition means 5b and the data acquisition means 5c, and the transmission area coordinates and the document data are stored in association with each other. Stored in the memory 6.
When the user inputs a display instruction specifying a document from the operation unit 8, the display control unit 43 reads the corresponding document data from the memory 6 and causes the driver 4 to display and hold the document image on the display unit. Based on the transmission area coordinates associated with the data, the mask driving means 45 causes the setting area of the mask layer 41 to be in a transmission state.

Therefore, the document image preset for each user in the management table 63 is displayed on the display unit 2, and the area of the mask layer 41 that is also preset for each user is made transparent.
Thus, by changing the display mode of the document image for each user, information that can be browsed by the user can be managed in accordance with the authority given to the user.

Note that it can be said that there is an advantage in system operation when the setting for each user is managed on the server 60 side as in the above example.
For example, although electronic paper EP is rewritable and used repeatedly, it is a kind of consumable such as being used many times in system operation and being relatively inexpensive so that it is discarded or replaced. I can say. For this reason, rather than having each electronic paper EP have user management information and functions, the configuration in which these functions are concentrated on the server 60 side allows the management to be performed more centrally. The user management information to be set can be easily changed.

It is a figure which shows the structure of the electronic paper which concerns on an example of this invention. It is a figure explaining the setting information which concerns on an example of this invention. It is a figure explaining the display mode concerning an example of the present invention. It is a figure which shows the structure of the electronic paper which concerns on an example of this invention. It is a figure explaining the display mode concerning an example of the present invention. It is a figure which shows the structure of the display control system which concerns on an example of this invention. It is a figure explaining the setting information which concerns on an example of this invention. It is a figure which shows self-writing type electronic paper. It is a figure explaining the principle of operation of self-writing type electronic paper. It is a figure explaining the structure of self-writing type electronic paper. It is a figure explaining the usage method of optical writable electronic paper. It is a figure explaining the principle of operation of optical writing type electronic paper. It is a figure explaining the structure of optical writing type electronic paper.

Explanation of symbols

EP, display recording medium (electronic paper), 2: display unit,
2a, 2b, 2c: display layer layer, 3: processing unit,
4: Driver, 5: Communication part (wireless part),
5a: ID providing means 5b: Control information obtaining means,
5c: data acquisition means, 6: memory,
7: Battery, 8: Operation input unit,
9: Processor (CPU) 11: Sensor
41: Mask layer, 41a: Transmission area,
42: User management means, 43: Display control means,
44: Authentication means, 45 mask drive means,
46: writing means, 47: writing control means,
60: Server 61: Communication device
61a: ID acquisition means, 61b: control information acquisition means,
61c: Data providing means, 62: Server main body,
63: Management table, 64: Database
65: Authentication means,

Claims (10)

In a display recording medium having a display unit that displays and holds a document image in a rewritable manner,
Input means for receiving specific information for specifying a user;
A display recording medium comprising: display control means for displaying a document image displayed and held on the display unit in a mode preset for each user based on the received specific information. In a display recording medium having a display unit that displays and holds a document image in a rewritable manner,
Input means for receiving specific information for specifying a user;
Mask means provided on the surface side of the display unit and driven to switch between a transmissive state and a non-transmissive state;
A mask driving means for driving the mask means in a manner preset for each user based on the received specific information and displaying a document image displayed and held on the display unit. recoding media. The display recording medium according to claim 1,
The display recording medium, wherein the mask driving means switches and drives the portion of the mask means between a transmissive state and a non-transmissive state. In a display recording medium having a display unit that displays and holds a document image made up of the partial document image in a configuration in which a plurality of layer layers that display and hold the partial document image are rewritable in a transparent manner,
Storage means for holding data of partial documents constituting the document image;
Writing means for writing a partial document image in the layer layer based on the partial document data held in the storage means;
Input means for receiving specific information for specifying a user;
And a writing control means for selecting the layer layer on which the partial document image is written by driving the writing means in a mode preset for each user based on the received specific information. recoding media. A display control system comprising: a display recording medium having a display unit that displays and holds a document image in a rewritable manner; and a server that manages the document image displayed and held on the display unit in association with a user.
The server
User management means for holding display control information for specifying a display mode preset for each user;
Control information providing means for providing corresponding display control information held by the user management means to the display recording medium based on information for specifying a user acquired from the display recording medium,
The display recording medium is
Input means for receiving specific information for specifying a user;
Specific information providing means for providing the received specific information to the server;
Control information acquisition means for acquiring the display control information provided from the server;
Mask means provided on the surface side of the display unit, and is driven to switch between a transmissive state and a non-transmissive state;
A display control system comprising: a mask driving unit that drives the mask unit based on the acquired display control information to display a document image displayed and held on a display unit. A display recording medium having a display unit for displaying and holding a document image made up of the partial document image in a configuration in which a plurality of layer layers for transparently displaying and holding the partial document image are laid on each other, and the display unit holding the display A display control system including a server that manages document images related to users,
The server
User management means for holding display control information for specifying a display mode preset for each user;
Control information providing means for providing corresponding display control information held by the user management means to the display recording medium based on information for specifying a user acquired from the display recording medium,
The display recording medium is
Input means for receiving specific information for specifying a user;
Specific information providing means for providing the received specific information to the server;
Control information acquisition means for acquiring the display control information provided from the server;
Storage means for holding data of partial documents constituting the document image;
Writing means for writing a partial document image in the layer layer based on the partial document data held in the storage means;
A display control system comprising: a writing control unit that drives the writing unit based on the acquired display control information to select the layer layer on which the partial document image is written. A display control system comprising: a display recording medium having a display unit that displays and holds a document image in a rewritable manner; and a server that provides document data for causing the display unit to display and hold the document image on the display recording medium. And
The server
Data management means for holding document data preset for each user;
Document data providing means for providing corresponding display data held by the data management means to the display recording medium based on information for identifying a user acquired from the display recording medium,
The display recording medium is
Input means for receiving specific information for specifying a user;
Specific information providing means for providing the received specific information to the server;
Document data acquisition means for acquiring the document data provided from the server;
Display control means comprising: display control means for setting a display mode of the document image based on the acquired document data on the display unit to a mode preset for each user based on the received specific information. system. A display recording medium is provided with a display unit that displays and holds a document image in a rewritable manner, an input unit that detects a user's contact, and a display control unit that controls a display mode on the display unit,
The input means receives specific information for specifying a user,
A display control method, wherein the display control means displays a document image on the display unit in a mode preset for each user based on specific information. A display recording medium is provided with a display unit that displays and holds a document image in a rewritable manner, an input unit that detects a user's contact, and a display control unit that controls a display mode on the display unit,
The server is provided with user management means for holding display control information for specifying a display mode preset for each user,
When the display recording medium receives specific information for specifying a user from the input means, the specific information is provided to the server;
The server provides corresponding display control information held by the user management means to the display recording medium based on information for identifying a user acquired from the display recording medium;
The display control method, wherein the display recording medium controls a display mode of a document image on the display unit based on the display control information provided from the server by the display control means. The display control method according to claim 9,
The server is provided with data management means for holding document data preset for each user,
The server provides corresponding display data held by the data management means to the display recording medium based on the specific information acquired from the display recording medium;
In the display recording medium, a display mode of the document image based on the document data provided from the server by the display control unit on the display unit is set in advance for each user based on the specific information. A display control method characterized by the above.

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