KR20100098388A - Document having an integrated display device - Google Patents

Abstract

The invention relates to a document having an integrated display device (102), comprising display elements disposed in a matrix, wherein the matrix has row lines (Z0, Z1,..., Z n-1) and column lines (S1, S2,..., Sm-1), wherein each of the display elements can be activated via at least one of the row lines and via at least one of the column lines, and having an electronic circuit (104, 106) for the selection of the row lines and the column lines for activating the display elements, and wherein groups of row lines and/or column lines are determined, in that the row lines and/or column lines of the same group are associated with each other such that the row lines and/or column lines of said group can be selected only together by means of the electronic circuit.

Description

Document with integrated display device {DOCUMENT HAVING AN INTEGRATED DISPLAY DEVICE}

The present invention relates to a document having an integrated display element, in particular a valuable document or a secure document, a method of authenticating a document and a method of producing a document.

Chip cards with integrated display elements are already known from the prior art. US 6,068,183 discloses a chip card system having a display element for reproduction of advertisement information, wherein the chip card can receive advertisement information from an information source.

From WO 2007/137555 A2 a motor vehicle feature is known which can be configured electronically by a display. In order to configure the vehicle characteristics, the data is integrated and encrypted at the external component. The encrypted data is transmitted as an infrared signal by an infrared sensor integrated in the component device. The signal is decoded in a display electronic device for the vehicle characteristic, for which the corresponding decryption software is stored in the display electronic device. Another automotive feature is known from US 5,657,008 and US 2007/0285361 A1.

The problem on which the present invention is based is to propose an improved document having an integrated display element and a method for the manufacture and certification of such document.

The problem on which the present invention is based is solved by the features of the independent claims, respectively. Embodiments of the invention are presented in the dependent claims.

According to the present invention, a document with an integrated display element having display elements arranged in a matrix is proposed. Since the matrix has row lines and column lines, each display element of the display element can be controlled by at least one row line and at least one column line.

According to the invention a "document" is for example a proof document, in particular a passport, identity card, visa, driver's license, vehicle inspection certificate, vehicle statement, employee card, health card or another ID-document, and also a chip card, payment means, in particular a bank card. And paper base and / or plastic base documents such as credit cards or waybills.

"Document" also means electronic features, in particular electronic vehicle features. The document may also form integral parts of vehicles, in particular motor vehicles. For example, the document can be integrated in the front or rear hood or in the so-called front or rear end by installing the display in or on according to the invention.

The document may also be based on a metal, in particular a metal plate, and may also have a document body made of a metal plate. The document may also have a document body made of another material, for example a composite material such as used in the automotive industry.

The display element integrated in the document can be an active- or passive-matrix display. In particular the display elements can be electrophoretic or electrochromic displays, bistable displays, rotating element displays, in particular so-called electronic papers ("E-papers"), LED displays, in particular inorganic, organic or hybrid-LED displays, of different embodiments. LCD-displays (e.g., twisted nematic, super twisted nematic, cholesteric, nematic), ferroelectric displays, displays based on electrowetting effects, displays based on interference modulation (IMOD) elements, hybrid displays or For example, it may be a display based on a flexible display available from Citala ( www.citala.com ) (see US 2006/0250535 A1 and WO 2007/054944).

The document according to the invention comprises an electronic circuit for selecting row lines and column lines for the control of display elements. At least some row lines and / or column lines are arranged in groups. Row lines and / or column lines of the same group may only be selected together by an electronic circuit.

Embodiments of the present invention are particularly advantageous because the display elements are adjusted by the determination of the group according to the image information to be displayed. For example, when a face image is output to a first area of a display element and text information is to be output to a second area of the display element, the present invention provides a method for adjusting image resolution correspondingly in a first area and a second area of a display element. That is, it is possible to select a high image resolution in the first area and a low image resolution in the second area.

This reduces the cost for the execution of the drive logic for the display device. This also reduces the storage space required for storing image data. Efficient use of drive logic and available storage space based on locally changed image resolution requires only a relatively small circuit area to implement a driver for a display device. This is advantageous for integrating electronic circuitry in the document.

"Image data" means here all data prepared for the generation of image reproduction on a display element of a document, as well as data of, for example, digital photographs, scanned biological metrology features, bar codes, text to be displayed or other information.

According to one embodiment of the invention, the information output by the display element is the vehicle parameter and / or the fare state of the motor vehicle. In an embodiment, in particular as an electronic vehicle feature, the document can be attached to an automobile or an automobile part.

The vehicle parameter may be, for example, the speed, noise measurement value or displacement of the vehicle. In particular, according to the fine dust regulation that can be applied in particular by the information it can be output which pollutant class the car meets.

The output of the fare status may indicate whether a previously recorded fare, tax and / or utility fee, in particular a mandatory fee, car tax and / or exhaust gas fee, has been paid for the car.

Embodiments of the present invention also have the advantage that security features are provided by the determination of a row line and / or column line group that can be mobilized for authentication of a document.

According to one embodiment of the invention, the determination of the row line and / or column line group is performed by electrical wiring. Such electrical wiring can be produced by conductive ink applied by ink line printing or screen printing between the row lines and / or column lines that are associated with each other. Other printing methods of high pressure printing, low pressure printing, stencil printing, flat printing and digital printing can also be used for the application of conductive inks.

Alternatively, electrical contacts can be formed by laser. To this end conductive wires are produced from insulating polymers present between the row and / or column lines, for example by carbonization.

According to one embodiment of the invention, the row lines and / or column lines are connected to one another by means of a melting contact, ie a so-called fuse. Determination of the row line and / or column line group is performed by applying a corresponding voltage to selectively remove electrical contacts between the row line and / or column line so that the selected fuse burns.

According to one embodiment of the invention, the determination of the row line and / or column line group is performed at the logic level by an association instruction. The electronic circuitry of the document can be programmed with the associative command to effect the desired association of a row line and / or column line group.

According to one embodiment of the invention, one area of the display element is designed for autostereoscopic image reproduction. Such display device regions are high resolution regions having no grouping of row lines and / or column lines or low grouping degrees. An optical layer as is known per se from WO 2007/048855 A1 can be arranged on the display element for autostereoscopic image generation.

According to one embodiment of the present invention, a plurality of display segments are formed in a display element by associating a plurality of row lines and column lines of the same group, respectively, to generate display segments. This embodiment is particularly advantageous since the display elements of the same display segment are generally controlled with the same image information, thereby reducing the data volume for control of the display element in particular in large quantities.

According to one embodiment of the invention, the electrical circuit is a drive circuit for a display element. The drive circuit can form an integrated component of the display element itself, and can be a chip implemented in the document, in particular as a stand-alone component part of the circuit or part of an RFID chip.

According to one embodiment of the invention, the display elements may have pixels with at least three display elements each for multicolor reproduction. Each display element of a given pixel is connected by separate row and column lines. In order to form a display element area for black and white reproduction, in the black and white display area, the row lines and column lines of the display elements of the pixels are respectively integrated into groups controlled only collectively.

For example, reproduction of text information or bar codes such as 2D- or 3D-barcodes is executed in the black and white reproduction area, while color pictures are reproduced in the remaining display areas. By integrating the row lines and column lines into groups in the black and white reproduction area, the driving logic can be further simplified and the data volume required for control of the display element is reduced.

In a further aspect the present invention relates to a method of authenticating a document. The invention here utilizes a situation in which security authorization is provided by the determination of a row line and / or a column line group. Authentication of the document is performed based on this security feature.

According to one embodiment of the invention, the determination of the group is performed by forming an electrical contact between the row line and / or the column line. This contact is optically detected by the reading device. The sample thus detected is compared with the reference sample for the authentication check of the document.

In another embodiment of the invention, the determination of the group at the logic level is performed by an association instruction. In this case, the authentication check of the document is executed based on the association. For example, for this purpose an associative command is transmitted from the reading device to the electronic circuitry of the document. The electronic circuit then controls the display element based on this association command to reproduce the image. This image is optically detected and evaluated by the reading apparatus to check the authenticity of the document.

According to another embodiment of the present invention, samples obtained by associating row lines and / or column lines in groups can be used in the determination of the encryption key. This cryptographic key can in turn be mobilized for authentication of the document.

In a further aspect the invention

Preparing a display element comprising display elements arranged in a matrix, said matrix having row lines and column lines, each display element being controllable by at least one row line and at least one column line;

Preparing an electronic circuit for selecting row lines and column lines for controlling display elements;

Preparing a document body for accommodating said display element and electronic circuit;

Determining a group of row lines and / or column lines by associating the row lines and / or column lines of this group with each other so that the same group of row lines and / or column lines can only be collectively selected by the electronic circuit.

It relates to a method of manufacturing a document comprising a.

For example, display elements are standardized components. In order to produce different types of documents according to the invention, the display elements are individualized by the determination of row lines and / or column line groups.

For example, the specification of different states can be different on the display element in the display of the image information. For example, the first state may persist while the face image is reproduced at the upper left of the display element, while the second state is sustained while reproduction is performed at the lower right. Correspondingly, individualization of the display elements is carried out according to the application.

Individualization of the display element can be performed similarly to the manufacture of document castings. Document castings containing individualized display elements are sent to the office which personalizes the document castings on the basis of the personal data of the corresponding administration in which the attestation document should be issued.

In a further aspect the invention relates to a reading device for a document according to the invention, which is designed to detect an association of a row line and / or a column line into a group. The reading device is also preferably designed to compare the detected association with the reference association. If the association actually detected matches the reference-association, then the corresponding security feature of the document is executed.

According to one embodiment of the invention, the reading device is designed to detect a document of a conventional vehicle, in which the document is designed as an electronic vehicle feature, for example. The reading device can be used, for example, for the detection of vehicle parameters, driving parameters or fare conditions of a motor vehicle, in particular for the execution of traffic control, exhaust gas control and / or fare control.

Also, embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a block diagram of one embodiment of a document in accordance with the present invention.
2 is a schematic plan view of a display element for display by its matrix structure.
3 shows the display element of FIG. 2 after the individualization step has been executed.
4 shows the display device of FIGS. 2 and 3 including electrical contacts for individualization.
5 is a plan view of a display device including four areas separated from each other.
6 shows the display device of FIG. 5 including electrical contacts.
7 is a detailed view of an electrical contact formed between two row or column lines.
8 shows the electrical contact of FIG. 7 after disconnection.
9 is a block diagram of another embodiment of a document and reading apparatus according to the present invention.
10 is a flowchart of one embodiment of a method according to the present invention.
11 is a flow chart of another embodiment of a method according to the invention.
In the following embodiments, elements corresponding to each other are denoted by the same reference numerals.

1 shows a document 100 in a schematic plan view. Document 100 may be a paper and / or plastic based document, in particular a valuable document or a secure document such as a proof document or an electronic vehicle feature.

The document 100 has an integrated display element 102 in which the display element 102 can be a so-called active- or passive-matrix-display. The display element 102 has n row lines Z0 to Zn-1 and m column lines S0 to Sm-1.

The row lines are each arranged equidistantly in the row direction and the column lines are arranged equally in the column direction. Alternatively, the distance between two adjacent row lines and the distance between two adjacent column lines may be different.

The matrix is formed by row lines and column lines. The display elements of the display element 102, which can be controlled by the control of the row lines and column lines forming the corresponding intersections, are arranged at the intersections of the row lines and the column lines.

Document 100 includes drive circuitry 104 that selects row lines and column lines for control of display elements of display element 102. The document also has an integrated electronic circuit, namely a so-called chip 106. The drive circuit 104 may form an integrated component of the chip 106 or the display element 102. The drive circuit can also be designed as a separate component that is connected by signal lines not only to the chip 106 but also to the display element 102 as shown in FIG.

The chip 106 has a data memory 108 for storage of data to be reproduced on the display element 102. This may be, for example, face image data 110 and / or graphic data of the holder of the document 100 and textual data 112 such as, for example, the date of birth, address, height, etc. for the holder of the document 100. In addition to or instead of the graphic data 110 and the text data 112, data for reproduction of two-dimensional or three-dimensional bar codes or the like may also be stored in the data memory 108.

Chip 106 includes a processor 114 for the execution of program instructions 116. The processor reads face image data 110 and / or text data 112 from data memory 108 by program instructions 116 and sends them to drive circuitry 104 for corresponding control of display element 102. As a result, the face image data 110 and / or the text data 112 are reproduced.

Chip 106 may be coupled to interface 118. The interface 118 may be designed as a contact, contactless or so-called dual mode interface. In particular, the interface 118 may be a so-called RFID-interface with an antenna. The interface 118 may rely on electrical, capacitive, inductive, magnetic, optical, or another physical connection method. For contactless connection by means of an antenna, it can be designed, for example, as a coil, as a dipole or in the form of a capacitive surface.

The interface 118 is used for energy supply of the chip 106, the drive circuit 104 and / or the display element 102 and / or for communication with an external device such as a reading device for the document 100, for example. do. In particular, the interface 118 may be designed to allow an external reading device to read access to data stored in the data memory 108, in particular biological instrumentation data. As a condition for this read access, the implementation of the so-called basic access control (BAC) method and / or the extended access control (EAC) method can be presupposed first.

Preferably, display element 102 is designed to be flexible and bendable. In order to be able to maximize the flexibility of the document 100, the printing technique may be used to completely or partially print the electrical and electronic components of the document 100, such as, for example, the interface 118, the chip 106, and / or the drive circuit 104. It can be applied on the document body of the raw document 100.

In addition to the document 100 parts shown in FIG. 1, elements of a valuable document or security document may include security features applied in particular by printing. Examples of this are the sensory properties of tilt effects or stitch printing, in optically variable colors. In the use of the printing method, valuable documents and security documents generally use certain colors to ensure distinction. For example, personal information introduced by ink line printing is secured by, for example, fluorescent color.

Document 100 may correspond to, for example, Regulation ICAO 9303 for a mechanically readable travel document based on ISO 14443 A / B. Interface 118 is designed for high frequency communication with an external reading device at 13.56 MHz.

The display element 102 can have a relatively high resolution, in particular for clear black and white reproduction or color reproduction of the face image data 110 or symbol. High resolution may also be required for information with relatively high data rates, especially for optical output of driving parameters or fare conditions. On the other hand, only low resolution is required for reproduction of the text data 112. In order to reduce the required cost for the complexity of the drive circuit 104, the row line and column line groups of the display element 102 are determined by associating the row and column lines of the same group with each other, and the row lines and The column lines can only be selected collectively by the drive circuit 104. This reduces the complexity of the data required for control in addition to the complexity of the drive circuitry.

The determination of this group in the first embodiment is made by electrical contacts between the row lines and / or column lines of the same group. In the embodiment observed here the column lines SO, Sl and S2 are connected to each other by electrical contacts 120 so that they are on the same potential. These column lines S0, S1 and S2 also form a group which can only be collectively controlled by the drive circuit 104, such control being for example only in one of these groups of column lines S0, S1 and S2. The control signal is applied by the drive circuit 104. This control signal selects all the column lines of this group. The same applies to the column lines S3, S4 and S5 connected to each other by the contact 122 and the column lines S6, S7 and S8 connected to each other by the contact 124.

In addition, the groups of row lines are determined by the contacts 126, 128, and 130. That is, one group includes row lines Z0, Z1, and Z2, one group includes row lines Z3, Z4, Z5, and one group includes row lines Z6, Z7, and Z8.

This grouping of row and column lines determines one region 132 in the display element 102 having a lower resolution than the rest of the display element 102. In the embodiment observed here, since nine pixels each are integrated into one pixel point that can be controlled based on the grouping of the row lines and the column lines, the resolution in the region 132 is above the upper right of the display element 102. One-ninth of the resolution of region 133 and one-third of the resolution of another region.

The drive circuit 104 is designed such that a group of row lines and column lines in the region 132 is controlled for reproduction of the text data 112, which is possible at a low technical cost due to the small amount of data required and the control complexity. On the other hand, the face image data 110 is executed by the control of the display element existing outside the region 132 of the display element 102.

Instead of determining the row line and column line groups by electrical contacts 120-130, the drive circuit 104 includes the same association table 134 for performing the association of the row and column lines in groups at one logic level or Association commands may be stored. For example, when the drive circuit 104 generates a signal for selection of a column line that is logically associated with a given group of column lines, the additional signal for selection of another column line of the same group may be driven by the drive circuit ( 104). The control of the row line and the group association in the association table 134 are similarly determined.

Even with relatively little stored data, the drive circuit 104 can meet a high resolution display by multiple uses of the same data. The stored pixel information for this purpose is transmitted by the drive logic of the drive circuit 104 to, for example, two, four or more actually present display elements, so that the actual resolution of the display element 102 is reduced. Algorithms that integrate different display elements or row lines and / or column lines into groups for collective control, which are fixedly present in the drive circuit 104 instead of the association table 134, may also be programmed.

Since separate image information does not need to be stored for each pixel point to be reproduced, data for reproduction of the text data 112 can be reduced in particular, and furthermore, collective control of row and column lines can be performed in the region 132. Only reduced data is needed.

When the chip 106 is an RFID chip, such an RFID chip is particularly advantageous since the space used for the data memory 108 is generally very limited. It is also particularly advantageous that personalization, i.e., the storage of data in the data memory 108, can also be carried out faster, since this must be carried out by the relatively long RFID-interface 118.

It is also particularly advantageous to provide individualization of the display element 102 by determining the row line and column line groups, which can be used as a security feature. In particular, where the association is effected by the introduction of contacts 120 to 130 at the physical level, the display element 102 differs from the standard display element 102 by the specific association of row lines and column lines. This provides additional protection for the document 100 operation, for example for the display element 102 in the document 100 being exchanged for another identically manufactured display element 102.

The information output by the display element 102 from the drive circuit 104 may also be a vehicle parameter and / or fare state. The information may be present in place of the face image data 110 and / or in the state of the text data 112. In this embodiment the document 100 is designed as an electronic vehicle feature that is attached to or forms an integral part of the vehicle.

For example, the driving circuit 104 or the chip 106 may be provided with an interface to the automotive electronics that transmits information to be output to the interface at regular or irregular time intervals. The automotive electronics may for example be a so-called electronic control unit (ECU). The automobile-electronic device forms an interface and a network by the automobile bus system, and transmits information to be output by the automobile bus system.

For example, automotive electronics can be used for the detection of vehicle-parameters based on sensor signals. For example, sensors are used to detect the actual displacement of a vehicle. This actual displacement is transferred from the automotive electronics to the electronic circuit 104 in the form of information, and the displacement is output via the display 102. Thus, it can also be used for additional vehicle parameters such as speed, actual noise measurement values produced by the vehicle or vehicle parameters suitable for another environment and / or security.

Alternatively or additionally, the vehicle-electronic device is designed for checking the fare condition. For example, it is confirmed by the car-electronic device whether the required fee for the motor vehicle, such as a mandatory fee, tax or exhaust gas fee, has been paid or has to be paid. Corresponding information indicative of the fare state is output to the electronic circuit 104 by the automobile-electronic device, so this information is output via the display 102. This can be done, for example, by the display of a rate plate on the display 102.

Correspondingly, reading device 108 may be designed to detect information output via display 102 from a stationary car and / or a driving car. The reading device 108 may be connected with a central server computer by a network, where the information detected by the display 102 is evaluated.

Text data 112 may be a public sector vehicle feature here. On the display 102 is also visually visually output one or a plurality of other information which cannot be visually recognized or at all recognized, depending on the embodiment without government vehicle features and additionally a reading device.

In such an embodiment, activation of the public office feature may be performed by activating the text data 112, for example, by transmitting data comprising the activated public office feature from the vehicle electronics to the interface via the car-bus system.

FIG. 2 is a schematic, unscaled top view of a display element 102 comprising, for example, display elements of m = 25 and n = 25, ie 625 so-called pixels. The display element 102 is manufactured, for example, as a standard part. In practical embodiments m and n may be larger.

3 shows a display element 102 after singulation. In this case, the individualization is such that the column lines S0 to S23 are respectively integrated into the column group SG in pairs, that is, the column lines S0 and S1 form the column group SG0 and the column lines S2 and S3 are opened. Execution of forming the group SG1. Similarly, row lines Z0 to Z24 are also integrated into row groups ZG in pairs, respectively. That is, the row lines Z0 and Z1 are integrated into ZG0 and the row lines Z2 and Z3 are integrated into ZG1.

The determination of the row line and column line groups results in regions of different resolution of the display element, that is, regions of high, medium and low resolution. Quadrant top left QI and quadrant right bottom QIII each have medium resolution, while quadrant left bottom QVI has low resolution and quadrant right top QII has high resolution.

For example, the display element of display element 102 disposed in quadrant QII is used for reproduction of face image data 110 with maximum resolution, while the medium resolution region, that is, quadrant QI and QII, is used for reproduction of text information. Low resolution region QIV is used for the reproduction of the barcode.

Incorporating row lines and column lines into groups SG and / or ZG may be performed by electrical contacts at the physical level or by association tables or association commands at the logical level, as already described above with reference to FIG. 1, for example. have.

4 shows the row lines Z0 by electrical wiring in pairs by contacts 120, 122, 124, ... of row lines S0-S23 and by contacts 126, 128, 130, ... To Z24), an embodiment of implementing a row line and a column line group is shown.

FIG. 5 shows one embodiment of a display element 102 comprising four matrixes MI, MII, MIII and MIV separated from each other, each having separate electrically separated row lines and column lines. As shown in FIG. 6, by contacting the row and column lines of the matrix MIV in pairs, an area having a lower resolution than that in the areas of the matrix MI, MII, and MIII is generated in the display element 102. An advantage of this embodiment is that no distorted resolution can be obtained at all in the region with intermediate resolution.

In another embodiment, the display element is designed as a multicolor display, in which pixels are produced with at least three different display elements, for example red, green and blue. When the row lines and column lines of the display elements belonging to the same pixel are respectively integrated into groups, a monochromatic display is generated in the region 132 since the individual display elements of the pixels can no longer be individually but only controlled collectively. .

In addition, the resolution in region 132 can also be reduced by integrating the column lines and row lines of the display elements of the pixel back into a larger group. This is particularly advantageous when text data should be reproduced in black and white in the area 132 while the remaining area of the display element 102 should be provided in color for clear reproduction of the face image data 110.

In another embodiment, display element 102 is designed for autostereoscopic generation of three-dimensional images. For this it is necessary for the display element 102 to be able to reproduce two different images from different angles so that each pixel is executed at least in duplicate. As is known per se from WO 2007/048855 A1 and the other prior art mentioned herein, a lens or line structure can be arranged on the display element 102 in order to create a three dimensional impression for the viewer.

If only text data 112 is to be output to the area 132, three-dimensional reproduction is unnecessary there. Thus, for simplicity of control and data reduction there, the column lines and the row lines are integrated by two pixels, each associated with each other and executed in duplicate.

The formation of the contacts 120 to 130 (see the embodiments of FIGS. 1, 4 and 6) can be effected by applying conductive ink, such as ink line printing or screen printing or other known printing methods such as high pressure printing, low pressure printing, By stencil printing, flat printing and digital printing. Alternatively, an insulating polymer is present between the row and column lines of the display device. Since the insulating polymer is converted by carbonization in the conductive compound, the electrical contacts 120 to 130 are made by irradiating the insulating polymer with a laser beam.

Alternatively, in the manufacture of display element 102 all row lines and column lines may be contacted by melt contacts. For personalization of the display element 102, this selected melt contact is electrically opened by applying a current for melting the melt contact for a short time.

Alternatively, in this embodiment, not all row lines and column lines are in contact with each other but instead form groups with a plurality of row lines and column lines, so that the display element 102 first has only low resolution. By selectively removing the contacts, the resolution of the display element 102 can then be increased locally.

7 illustratively shows a contact 120 (see FIGS. 1, 4 and 6) between column lines S0 and S1. First, the display element 102 in which the contact point 120 already exists is manufactured. For the individualization of the display element 102, the contact 120 can be removed, for example by laser ablation. Alternatively, a short time voltage is applied between the heat lines S0 and S1 so that the heat lines S0 and S1 are no longer in electrical contact and can be individually controlled.

8 shows the view of FIG. 7 in which the contacts 120 are divided into two.

The determination of the row lines and / or column line groups for the individualization of the display elements 102, ie for the collective control of the corresponding display elements, is carried out before the introduction of the display elements 102 into the document body of the document 100, during the introduction or Can be run after introduction. In particular, individualization of the display element 102 may be performed in the manufacture of the document 100 casting. Such document castings can be personalized at a later point in time with personal indications and biological measurement data of the document holder.

Alternatively, the individualization of the display element 102 is performed with personalization.

9 illustrates one embodiment of a document 100, where samples are provided that are used as security features by the determination of row lines and / or column line groups. For example, the contacts of the column lines S0 and S1 are connected; Column line S2 is associated with a smaller group, and a group consisting of column lines S3, S4 and S5 is determined by contact 122; The group consisting of the column lines S6, S7, S8, and S9 is determined by the contact 124, and the group consisting of the column lines S10 and S11 is determined by the contact 124.

For row lines, groups of row lines Z0, Z1, Z2 and Z3, Z4, Z5, Z6 and Z7, Z8 are formed by contacts 126, 128, and 130. By incorporating column lines and row lines into such irregular groups, samples are provided that can be examined by the reading device 136. For this purpose, the reading device 136 has an optical sensor 138 for the optical detection of the display element 102. The reading device 136 also includes a control program 140 and an application 144 for the processing of the data supplied by the optical sensor 138. The reading device 136 also has an interface 146 for communicating with the interface 118 of the document 100, for example by radio-RFID method.

For the examination of the security features provided by the determination of the group, for example, by optically detecting the electrical contacts 120 to 130 themselves or by outputting a reference picture on which the grouping is exposed, on the display element 102. ) Is optically read by the optical sensor 138. The data supplied by the optical sensor 138 is processed by the program command 142 and compared with a reference value, i.e. a reference association. If it matches the reference value, the control program 140 sends a corresponding signal to the application program 144 to indicate the authentication of the document 100. The application 144 may then access the chip 106 of the document 100 via the interfaces 146 and 118.

Document 100 may also include additional security features that are examined by reading device 136. In addition, in order to protect the data stored in the chip 106, a BAC protection mechanism and / or an EAC protection mechanism may be implemented.

In another embodiment, the determination of the group is provided by the association command 134 rather than provided by the electrical contacts 120-130. This association instruction 134 also exists as a reference in the control program 140. Alternatively, the association command 134 may be provided by the control program 140. This may be executed such that the association command 134 is communicated to the drive circuit 104 by the interfaces 146, 118.

10 shows a corresponding flowchart. In step 200, the display element 102 is optically detected by the reading device 136 to group the integration of the row lines and / or column lines and to optically detect the sample formed thereby. This sample is compared to the reference value by the reading device in step 202. If it does not match sufficiently, the abort is executed in step 202. That is, the document is rejected as unauthenticated. In the opposite case, the security characteristic is considered as satisfied in step 206. In order for a document to be considered certified, additional security features may additionally exist, which may also be checked.

11 shows another embodiment of an authentication method according to the present invention. In step 300 the reading device transmits an associative command to the driver of the document, for example by RFID-method. A group of display elements, row lines and / or column lines that can only be collectively controlled by the association command is defined. In step 302, for example, a reference picture present in the data memory of the chip is reproduced on the display element based on the association instruction. In step 304 such image reproduction is detected by the reading apparatus and compared with a reference value for the purpose of confirmation. If the detected picture matches the reference picture, the security feature is considered satisfied.

100 Document 132, area 133
102 Display Element 134 Association Table
104 drive circuit 136 reader
106 Chip 138 Optical Sensor
108 Data Memory 140 Control Program
110 Face image data 142 Signal processing
112 text data 144 applications
114 processors
116, 142 program instruction
118, 146 interface
120, 122, 124, 125, 126, 128, 130 electrical contacts

Claims (23)

A document having an integrated display element 102 comprising display elements arranged in a matrix, the matrix comprising: row lines Z0, Z1, ..., Z _{n -1} and column lines S0, S1,... , S _m-1 ), wherein each display element can be controlled by at least one row line and at least one column line, and an electronic circuit for selecting the row line and the column line for control of the display element. (104, 106), wherein the group of row lines and / or column lines is a group of row lines and / or column lines such that row lines and / or column lines of the same group can only be selected together by the electronic circuit. Document determined by associating with each other. 2. A contact according to claim 1, comprising electrical contacts (120, 122, 124, 126, 128, 130, ...) for electrical connection of row and / or column lines of the same group, wherein said groups are connected by said electrical contacts. The document characterized in that it is determined. The document of claim 1, wherein the electronic circuitry is designed to execute an association command (124), wherein an association of a row line and / or a column line of a group is determined by the association command. 4. A method according to claim 1, 2 or 3, comprising at least one first area of the first resolution and at least one second area 132 of the second resolution, wherein the second resolution is the first resolution. A smaller, second region comprising one or a plurality of groups. A document according to claim 4, wherein the first area is designed for autostereoscopic reproduction. 6. Document according to any one of the preceding claims, characterized in that the display element is formed by this group, including at least some row lines and / or column lines. 7. The method according to claim 4, 5 or 6, wherein the first image data 110 of the first resolution is stored for reproduction in the first area and the second of the second resolution for reproduction in the second area. And a data memory (108) for storing image data (112). The document according to claim 7, wherein the first image data is a face image or biological measurement data, and the second image data is text information or a barcode. The display element according to any one of claims 1 to 8, wherein the display element comprises at least three display elements per pixel for multicolor reproduction, and each one of a column line and a row line of display elements of the same pixel in the fourth region. A document characterized in that the display elements are designed for multicolor reproduction in the third region and monochromatic reproduction in the fourth region by associating with each other in groups of so that they can only be controlled together. 10. Document according to any one of the preceding claims, characterized in that it is an electronic vehicle feature. 11. A document according to claim 10, having an interface, said interface being designed to receive information that can be reproduced on a display element. The document of claim 11, wherein the interface is designed to receive information from an automotive electronic device, the information being a vehicle's characteristics, vehicle parameters, and / or fare status. 13. A method of authenticating a document (100) of any of claims 1 to 12, wherein a security feature is provided by the determination of a group, which is checked for authentication of the document. The authentication method according to claim 13, wherein the inspection of the security feature is performed by optical recognition of the electrical contact formed between the row line and / or the column line. 15. The apparatus of claim 13, wherein the associative command is transmitted from the reading device 136 to a document, the electronic circuit controls the display element to reproduce an image based on the associating command, and the reading device optically reproduces the reproduced image. And detecting and checking the correct processing of the association command. A display element arranged in a matrix, said matrix having row lines (Z0, Z1, ..., Z _n-1 ) and column lines (S0, S1, ..., S _m-1 ), Preparing a display element 102 in which each display element can be controlled by at least one row line and at least one column line,
Preparing electronic circuits 104, 106 for selecting row lines and column lines for controlling display elements,
Preparing a document body for accommodating said display element and electronic circuit,
Determining a group of row lines and / or column lines by associating the row lines and / or column lines of this group with each other so that the row lines and / or column lines of the same group can only be selected together by the electronic circuit.
Method of producing a document comprising a. 17. The method of claim 16, wherein the determination of the group is performed by forming or tearing down electrical contacts 120, 122, 124, 126, 128, 130, ... between the row lines and / or column lines. Manufacturing method. 18. A method according to claim 16 or 17, wherein the determination is performed by programming an association instruction and an electronic circuit. 19. The manufacturing method according to claim 16, 17 or 18, wherein the determination of the contacts produced by the printing technique is performed by high pressure printing, low pressure printing, stencil printing, flat printing, or digital printing. 19. The method according to claim 16, 17 or 18, wherein the crystal is carried out by dissolving the contact with a laser beam or melting one of the contacts. A reading device for a document according to any one of the preceding claims. 22. The apparatus of claim 21, wherein the reading device is designed to detect an association of a row line and / or a column line into a group. 23. The apparatus of claim 22, wherein the detected association is compared with a reference association and the security feature of the document is examined by such a comparison.

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