EP1090384A1 - Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und texten - Google Patents
Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und textenInfo
- Publication number
- EP1090384A1 EP1090384A1 EP99936454A EP99936454A EP1090384A1 EP 1090384 A1 EP1090384 A1 EP 1090384A1 EP 99936454 A EP99936454 A EP 99936454A EP 99936454 A EP99936454 A EP 99936454A EP 1090384 A1 EP1090384 A1 EP 1090384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- color
- color mirror
- paint
- mirror
- colorant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/377—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by pneumatic means
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
Definitions
- the invention relates to a device for creating images and texts recognizable by incident light.
- the images and texts created on a screen of a display or on a screen fade or disappear completely as soon as a stronger light strikes the screen or on the screen.
- the invention has for its object to provide a device in which a clearly visible to brilliant image is formed in the light.
- the image surface is composed of numerous electronically controllable, grid-like arranged point elements and that each point element has at least one color mirror formed by a flat container and closed at least on the visible side by a transparent wall, the interior of which via a channel is connected to a paint container, the content of which can be put under pressure by electronic control so that color reaches the color mirror from the paint container and the color can be sucked out of the color mirror by reducing the pressure in the paint container.
- the dot elements take on the colors white or black or light or dark.
- a point element or pixel has a color mirror that is connected to a color container that has a dark one Color, eg black, is filled. The rear bottom of the color mirror then has a light or white color.
- a point element has at least three or four color mirrors which are connected to color containers which are filled with different colors, in particular black, cyan, yellow and magenta.
- the point elements composed in this way can assume the colors of the selected color containers in the image area. Since two or more color containers of a point element can also be controlled, the point elements can also take on the colors of color mixtures.
- the color can be mixed in an additive manner using the primary colors red, green and blue. However, it can also be done in a subtractive manner using the basic colors cyan, magenta and yellow and, if appropriate, using a contrasting color: black.
- the flat containers of the color mirrors can be arranged next to each other to form mixed colors for each point element or pixel, or else one behind the other, provided that the respective upstream color mirrors consist of clear, transparent material and are connected to color containers filled with transparent colors.
- the ink containers are advantageously put under pressure by means of piezo actuators. These piezo actuators can be controlled via a diode matrix.
- valve in the channel between the color mirror and the color container, which valve opens or closes depending on the control.
- This valve can also be formed by a piezo actuator.
- a color mirror can also be connected to two color containers via two color mirrors arranged at a distance from one another. Two colors can then be pressed into a color mirror, taking care that the colors do not mix with one another. That can once happen that a movable wall is arranged within the color mirror or else the colors have a relatively large surface tension and two colors pressed into a color mirror are separated from a gas cushion.
- An image area should consist of several modules and these of several units, each unit then having at least 200 to 300 point elements.
- the modules each have a (bidirectional) interface on their edges, via which it can communicate with another module adjacent to it.
- the data to be displayed for a module network is only fed into one of the modules via a free edge equipped with an interface and then passed on via the other edges.
- An appropriate algorithm can be used to ensure optimized data distribution once the network structure has been identified. All modules are supplied with all available input data via this data network. With the aid of the network structure data determined, each module can determine its exact position within the module network in order to display the image section of the overall image to be displayed.
- the scaling and interpolation work that occurs when displaying video images (PAL) on large screens can thus be processed in parallel by the modules, which on the one hand enables high quality and on the other hand low costs of using small-sized module processors.
- PAL video images
- central processor e.g. approx. 68030 or 80486
- a random access memory RAM sufficient for real resolution and image resolution as well as possibly additional data
- the approximately 1 to 3 mm 3 large paint containers are expediently incorporated as rectangular or square chambers in a plate made of ceramic material.
- the color mirror as well as the channels that the Connecting the paint container to the color mirror can be incorporated into plates made of ceramic material. These plates are glued together and form a unit of 30 x 30 or 50 x 50 dot elements or pixels.
- These tile-like units can, for example, be square and have a side length of 80 to 120 mm. Several of these pixel units are put together to form a module and several modules form a screen.
- the screen can also be designed to be self-illuminating by arranging light sources behind the color mirrors.
- 1 is a plan view of a module of an image area composed of four units
- FIG. 2 is a sectional view of a point element with a color mirror
- 3 is a plan view of a point element with four color mirrors
- FIG. 4 is a plan view of a point element with three color mirrors
- FIG. 5 is a plan view of a point element with three color mirrors
- FIG. 6 is a plan view of a point element with six color mirrors
- FIG. 7 is a plan view of four point elements, each with three color mirrors,
- FIG. 8 is a plan view of four modules of an image area
- FIG. 9 9 is a screen
- 11 is a plan view of two point elements
- FIG. 12 is a view along the section line XII-XII in Fig. 1 1,
- FIG. 13 is an exploded perspective view of a corner of a point element or pixel unit with a color mirror located in two planes.
- the invention relates to a device, in particular a screen, which shows a colored or black / white still image or moving image in the case of incident light. The stronger the incident light, the better the picture quality.
- the screen 13 according to FIGS. 8 and 9 is composed of modules 12, which in turn are composed of units 10 or tiles. 1 shows a unit 10 with 30 x 40 point elements or pixels 1.
- Each point element 1 has at least one color mirror 3 shown in FIG. 2, which consists of a flat container, the wall 2 facing the visible side of which is transparent and which is connected to a color container 5 via a thin channel 6.
- a micropump 7 which, by changing the volume, can press paint from the paint container 5 into the color mirror 3 and can retrieve color from the color mirror 3.
- a point element 1 can also have four color mirrors 3, which are connected via their channels 6 to color containers 5, which are filled with the colors cyan, magenta, yellow and black.
- the movable walls 9 are designed in the manner of a slide and are shaped so that they cannot cover the inlets of the channels 6.
- a gas or air cushion 11 separates the colors pressed into the color mirror 3.
- the point element 1 has six color mirrors 3, which are each connected to only one color container 5.
- the color mirror 3 have the shape of a rectangular in plan view
- Triangular Two color mirrors 3 are arranged so that they are rectangular Cover the area, the hypotenuses of the triangles running diagonally through the rectangular area.
- each color mirror 3 is connected via channels 6 to two color containers 5, one of which has the color black and the other color container 5 has the color cyan, or Magenta or yellow is filled. So that the colors in the color mirrors 3 remain separate, they are separated by a gas cushion 11. A basic color or a contrasting color can thus be introduced into each color mirror 3.
- the amount of ink pressed into the color mirror 3 is controlled via a micropump 7 or a piezo actuator 7 and electronics.
- the image area or the screen 13 is composed of four modules 12. All modules 12 can be used anywhere on the image area 13. In order to enable this simple and quick construction of an image area, each module 12 has a bidirectional interface on each of its edges, via which it can communicate with the adjacent modules 12.
- each module 12 can determine its exact position within the module network in order to display the image section of the overall image to be displayed.
- the scaling and interpolation work involved in the display of video images (PAL) on large screens can thus be processed in parallel by the modules, which on the one hand enables high quality and on the other hand low costs by using small-sized module processors.
- the control signal For individual control of the micropumps 7, the control signal must be multiplexed via a diode matrix due to its large number.
- the piezo actuators 7 are connected via a matrix. When a potential is applied to exactly one column and one row, a capacitor is charged and feeds the piezo actuator 7 until the refresh with the voltage required for the representation of the image at this point. A discharge of the capacitor via the matrix is not possible due to a diode. To achieve the required packing density, production is in Prefer thin film technology. To further increase the circuit density, higher integration of the matrix electronics within an integrated circuit is conceivable.
- a screen according to FIG. 9 with a very high image and color quality and a size of 1.5 x 2 m is composed, for example, of twelve square modules 12 with a side length of 50 cm.
- Each module 12 is composed of twenty-five units or tiles 10 together with a side length of 100 mm.
- 10 shows a longitudinal section through two point elements or pixels 1, each having three color mirrors 3, 3 'and 3 "arranged one above the other, which are connected to the color containers 5.5' and 5" via channels 6, 6 'and 6 " are.
- the micropump 7 is composed of a bending piezo actuator 14, 15 and an elastic, compressible body 16, e.g. made of foam plastic or foam rubber.
- the bending piezo actuator has a metal strip 14 to which a strip of piezoceramic 15 is glued.
- This piezoceramic strip 15 expands or shortens depending on the voltage applied. Similar to a bimetal, this changes the shape of the metal strip 14, as a result of which the body 16 is more or less compressed and accordingly less or more dye gets into the color levels 3, 3 ', 3 ".
- the volume of the ink containers or ink chambers is 1 to 2 mm 3 .
- the color liquid can be a hydrocarbon, especially a liquid one Be paraffin.
- the inner surface of the color mirror 3, 3 ', 3 can be treated or coated with a surface energy reducing agent, thereby reducing the adhesion of the liquid paint pressed into the color mirror 3, 3', 3".
- 11 shows the top view of two point elements 1, each with four color mirrors 3, 3 '.
- Each dot element or pixel 1 has three transparent color mirrors 3 'arranged next to one another, which are connected to two color containers 5' via channels 6 '.
- these three color mirrors 3 ' is a round color mirror 3, which is contrasted with a contrasting color, e.g. Black, can be filled.
- FIG. 12 shows a sectional view along the section line XII-XII in FIG. 11.
- This FIG. 12 shows the structure of a unit 10 or tile, which is composed of a plurality of plates 21 to 24, preferably made of ceramic, which are glued to one another. The back is formed by the base plate 21.
- a cover and protective pane 26 On the front side there is a cover and protective pane 26.
- This protective pane 26 and the outer color mirror plate 25 are made of a clear material.
- the color chambers 5 for the contrast colors for the color mirror 3 are accommodated in the color chamber plate 22, while the color chambers 5 'are filled with the transparent colors yellow, magenta and cyan.
- the rear color mirror plate 24 can consist of white ceramic.
- the base plate 21 is composed of a contact plate 27 which produces the contacts between the piezo actuators 14, 15 and the conductor tracks of the conductor track layer 28.
- a further layer 29 can have a multiplex circuit for controlling the piezo actuators 14, 15.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19828474 | 1998-06-26 | ||
DE19828474 | 1998-06-26 | ||
PCT/EP1999/003909 WO2000000947A1 (de) | 1998-06-26 | 1999-06-05 | Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und texten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1090384A1 true EP1090384A1 (de) | 2001-04-11 |
EP1090384B1 EP1090384B1 (de) | 2002-04-17 |
Family
ID=7872079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936454A Expired - Lifetime EP1090384B1 (de) | 1998-06-26 | 1999-06-05 | Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und texten |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1090384B1 (de) |
AU (1) | AU5154899A (de) |
DE (1) | DE59901267D1 (de) |
ES (1) | ES2176004T3 (de) |
WO (1) | WO2000000947A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004021318A1 (de) * | 2002-08-09 | 2004-03-11 | Aspre Ag | Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und texten |
WO2008046842A1 (de) | 2006-10-20 | 2008-04-24 | Aspre Ag | Bildfläche oder display |
WO2011054456A1 (de) | 2009-11-09 | 2011-05-12 | Aspre Ag | Display |
US8331009B2 (en) | 2005-05-21 | 2012-12-11 | Aspre Ag | Method for mixing colors in a display unit |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19845377B4 (de) * | 1998-10-02 | 2004-07-15 | Weßling, Gerold | Bildschirm zur Darstellung farbiger Bilder |
DE102004062650B4 (de) * | 2004-12-20 | 2010-03-25 | Advanced Display Technology Ag | Verfahren, Vorrichtung und System zur Erstellung von durch auffallendes Licht erkennbaren Bildern, Texten und Informationen |
CN101120391B (zh) * | 2005-02-16 | 2011-03-23 | 阿斯普雷股份公司 | 用于生成可通过入射光识别的彩色图像和文字的显示装置 |
DE102005008834A1 (de) * | 2005-02-16 | 2006-08-24 | Aspre Ag | Display zur Erstellung von durch auffallendes Licht erkennbaren farbigen Bildern und Texten |
DE102006009541A1 (de) * | 2006-02-28 | 2007-08-30 | Aspre Ag | Bildfläche oder Display |
DE102009038469B4 (de) | 2009-08-21 | 2015-02-12 | Advanced Display Technology Ag | Anzeigeelement und Verfahren zum Ansteuern eines Anzeigeelementes |
DE102010009890A1 (de) | 2010-03-02 | 2011-09-08 | Advanced Display Technology Ag | Sicherheitselement |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04166981A (ja) * | 1990-10-31 | 1992-06-12 | Toshiba Corp | ディスプレイ装置 |
JPH05158416A (ja) * | 1991-12-10 | 1993-06-25 | Matsushita Electric Ind Co Ltd | ディスプレイ装置 |
US5717283A (en) * | 1996-01-03 | 1998-02-10 | Xerox Corporation | Display sheet with a plurality of hourglass shaped capsules containing marking means responsive to external fields |
-
1999
- 1999-06-05 DE DE59901267T patent/DE59901267D1/de not_active Expired - Lifetime
- 1999-06-05 AU AU51548/99A patent/AU5154899A/en not_active Abandoned
- 1999-06-05 EP EP99936454A patent/EP1090384B1/de not_active Expired - Lifetime
- 1999-06-05 WO PCT/EP1999/003909 patent/WO2000000947A1/de active IP Right Grant
- 1999-06-05 ES ES99936454T patent/ES2176004T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0000947A1 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004021318A1 (de) * | 2002-08-09 | 2004-03-11 | Aspre Ag | Vorrichtung zur erstellung von durch auffallendes licht erkennbaren bildern und texten |
US8331009B2 (en) | 2005-05-21 | 2012-12-11 | Aspre Ag | Method for mixing colors in a display unit |
WO2008046842A1 (de) | 2006-10-20 | 2008-04-24 | Aspre Ag | Bildfläche oder display |
WO2011054456A1 (de) | 2009-11-09 | 2011-05-12 | Aspre Ag | Display |
DE102009052271A1 (de) | 2009-11-09 | 2011-05-12 | Aspre Ag | Display |
Also Published As
Publication number | Publication date |
---|---|
DE59901267D1 (de) | 2002-05-23 |
EP1090384B1 (de) | 2002-04-17 |
AU5154899A (en) | 2000-01-17 |
ES2176004T3 (es) | 2002-11-16 |
WO2000000947A1 (de) | 2000-01-06 |
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