WO2003042753A1 - Display with micro pockets - Google Patents

Display with micro pockets Download PDF

Info

Publication number
WO2003042753A1
WO2003042753A1 PCT/NO2002/000421 NO0200421W WO03042753A1 WO 2003042753 A1 WO2003042753 A1 WO 2003042753A1 NO 0200421 W NO0200421 W NO 0200421W WO 03042753 A1 WO03042753 A1 WO 03042753A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
cavities
electro
transparent
isolating
Prior art date
Application number
PCT/NO2002/000421
Other languages
French (fr)
Inventor
Børre HOLTER
Original Assignee
Polydisplay Asa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Polydisplay Asa filed Critical Polydisplay Asa
Priority to EP02778123A priority Critical patent/EP1454185A1/en
Publication of WO2003042753A1 publication Critical patent/WO2003042753A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/1533—Constructional details structural features not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/155—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/42—Arrangements for providing conduction through an insulating substrate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3026—Top emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/82—Interconnections, e.g. terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates

Definitions

  • the present invention relates to a display, and a method of manufacturing the same.
  • the display comprises an electrode layer, a substrate, which on the surface facing the electrode layer is covered with a set of electrode elements placed in cavities, and a layer of electro-optic material which is arranged between the electrode layer and the substrate.
  • the present invention relates to the technical field of flat displays.
  • An example of a display or screen according to that stated above (also called LCD, Liquid Crystal Display) is disclosed in SE-511,511 with the title:
  • Display relates to a liquid crystal display, comprising an electrode layer, a substrate, which on the surface facing the electrode layer is covered with a set of electrode elements, and a layer of electro-optic material which is arranged between the electrode layer and the substrate, the substrate being arranged behind the layer of electro-optic material in relation to the viewing direction, the substrate being arranged to support, on the one hand, electronic components for controlling the electrode elements and, on the other, conductive patterns for connecting the electronic components to the electrode elements, and the electrode elements forming picture elements in the display in cooperation with the electrode layer and the layer of electro-optic material.
  • One drawback with this display is the amount of electro-optic material needed to be filled between the electrode layer and the substrate.
  • the manufacturing method results in a display with pixel regions filled with a continues layer of liquid crystals.
  • the electro-optic material is quite expensive and it is desirable to minimise the amount used.
  • Liquid crystal display device and method for manufacturing the same relates to a display including: a first substrate and a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate.
  • the first substrate includes a polymer wall formed of transparent resin
  • the liquid crystal layer includes a plurality of liquid crystal regions partitioned by the polymer wall, and liquid crystal molecules in the plurality of liquid crystal regions which are aligned in axial symmetry, with respect to an axis in a direction substantially perpendicular to a surface of the first substrate.
  • the main focus in this particular manufacturing method and display is only to achieve a wide viewing angle and improved quality of the displayed information.
  • the main advantages of the display according to the present invention described herein are reduced production costs compared to other manufacturing methods due to a minimal number of layers, and use of less expensive electro-optical material, combined with a thin and compact display.
  • the object of the present invention is to reduce the number of layers and a minimal use of electro-optical material, resulting in a more cost-effective production method and a robust display.
  • the manufacturing method comprises the steps of providing an isolating substrate and making cavities in the top surface of the substrate.
  • the cavities are referred to as micro pockets.
  • Each micro pockets is applied with holes in the centre extending from the upper surface of the micro pocket and all the way through to the underside of the isolating substrate.
  • a conductive material is applied on the inner surfaces of the micro pockets and into the holes.
  • the micro pockets are filled with an electro-optical material and applied a uniform layer of a transparent common conductor to cover all the micro pockets with the electro-optical material.
  • a transparent substrate is applied on top of the transparent conductor to make the top layer.
  • the isolating substrate is made of glassfibre composite, plastic or ceramics.
  • the forming of the cavities in the top layer of the isolating substrate can be formed by stamping, imprinting, engraving or etching in the isolating substrate.
  • the forming of the cavities in the top layer of the isolating substrate are formed by applying a separate sheet with holes, where each hole corresponds to one picture element or pixel. The sheet is mounted on the isolating substrate with depositing conductive material, gluing or heat sealing.
  • the conductive material is ITO, copper or aluminium.
  • the electro-optical material is liquid crystals, LED (inorganic or organic), electrochromic material, or another material changing its optical properties with an applied electric field.
  • the common conductor covering the micro pockets comprises ITO or SnO.
  • the transparent substrate is made of glass or plastic.
  • the invention also comprises the display itself with the features stated in the appended claims.
  • the invention is based on the understanding that in a display of this type, it is advantageous to let the electrode elements, which are commonly called pixels, be connected to a conductive pattern by means of conductive connections which emanate from the electrode elements in the direction away from the layer of electro-optic material, i.e. the underside of the isolating substrate. This will contribute to the form factor of the thin display.
  • Another aspect also contributing to a thin display according to the invention is the cavities made directly in the isolating substrate, or formed with a separate sheet with holes mounted on the isolating substrate.
  • Fig. 1 is a schematic cross-sectional view of the components in the micro pocket display system of the present invention
  • Fig. 2 is a schematic cross-sectional view of an assembled display according to the present invention
  • Fig. 3 is a schematic view according to method 1 with micro pockets for the electro-optical material formed in isolating substrate.
  • Fig. 4 is a schematic view according to method 2 with micro pockets for electro- optical material formed in a separate sheet.
  • Fig. 1 shows a cross-section of the different components making the display.
  • the base of the display is made of an isolating substrate 80 with small cavities 60 imprinted. These cavities 60 will make the picture elements or pixels of the assembled display. For further reference the cavities are referred to as micro pockets.
  • the isolating substrate 80 can be made of a glassfibre composite, plastic, ceramics or another material with isolating characteristics.
  • the micro pockets 60 may be formed by stamping, imprinting, engraving or etching in the substrate 80. After the micro pockets 60 are established, holes 70 in the centre of each micro pocket 60 are made. These holes 70 will in turn provide for an electrical connection between the underside of the substrate and each pocket 60. This connection will be established when a conductive material 40, 50 is applied to the substrate 80.
  • the holes 70 will also be filled with the conductive material 40, 50, thus enabling physical contact between the micro pockets 60 and electronic components 90 and wires connected on the underside of the isolating substrate 80.
  • the micro pockets 60 are then filled with an electro- optical material 30, i.e. liquid crystal, LED, electrochromic material.
  • the layer of electro-optical material 30 is covered with a layer of a transparent common conductor 20, i.e. ITO or SnO.
  • the top layer consists of a transparent substrate 10 like glass or plastic.
  • Fig. 2 shows a cross-section of an assembled display with all the different layers that form the thin display according to the invention.
  • the electrical connections 40, 50 with mounted wires and electronic components 90 will ensure activation of the electro-optical medium 30.
  • the electro-optical material 30 is covered with a layer of a transparent common conductor 20.
  • the top layer consists of a transparent substrate 10 like glass or plastic.
  • Fig. 3 shows a first method of applying the micro pockets 60 in the isolating substrate 70.
  • the cavities or micro pocket are formed by stamping, imprinting, engraving or etching on the substrate 70.
  • Fig. 4 shows a second method of applying the micro pockets in the isolating substrate 70.
  • This method involves the steps of forming holes 65 in a separate sheet, where each hole 65 corresponds to one picture element or pixel.
  • the sheet 55 is mounted on the isolating substrate 70 with depositing conductive material, gluing or heat sealing.
  • the present invention is not restricted to the manufacturing method and display described herein.
  • the display may be manufactured in different variations, for instance the holes in the cavities may be applied out of centre.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

The present invention relates to a thin display (15), and a method of manufacturing the same. The display (15) comprises an isolated substrate (80), with cavities (60) also called micro pockets in a pattern, or created with a separate sheet (55) with holes (60) mounted on the substrate (80). These micro pockets (60) will make the picture elements of the display (15). The display (15) further comprises perforated holes (70) in the centre of the micro pockets (60) and a conductive material (40, 50) covering the surfaces inside the micro pockets (60) and the perforated holes. An electro-optical material (30) fill the cavities (60), and a uniform layer of transparent conductive material (20) cover all the filled micro pockets (60). A top layer of a transparent substrate (10) cover the conductive layer (20).

Description

Display with micro pockets
FIELD OF INVENTION
The present invention relates to a display, and a method of manufacturing the same. The display comprises an electrode layer, a substrate, which on the surface facing the electrode layer is covered with a set of electrode elements placed in cavities, and a layer of electro-optic material which is arranged between the electrode layer and the substrate.
BACKGROUND ART
The present invention relates to the technical field of flat displays. An example of a display or screen according to that stated above (also called LCD, Liquid Crystal Display) is disclosed in SE-511,511 with the title: Display, relates to a liquid crystal display, comprising an electrode layer, a substrate, which on the surface facing the electrode layer is covered with a set of electrode elements, and a layer of electro-optic material which is arranged between the electrode layer and the substrate, the substrate being arranged behind the layer of electro-optic material in relation to the viewing direction, the substrate being arranged to support, on the one hand, electronic components for controlling the electrode elements and, on the other, conductive patterns for connecting the electronic components to the electrode elements, and the electrode elements forming picture elements in the display in cooperation with the electrode layer and the layer of electro-optic material.
One drawback with this display is the amount of electro-optic material needed to be filled between the electrode layer and the substrate. The manufacturing method results in a display with pixel regions filled with a continues layer of liquid crystals. The electro-optic material is quite expensive and it is desirable to minimise the amount used.
US-6,266,122 with the title: Liquid crystal display device and method for manufacturing the same relates to a display including: a first substrate and a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes a polymer wall formed of transparent resin, the liquid crystal layer includes a plurality of liquid crystal regions partitioned by the polymer wall, and liquid crystal molecules in the plurality of liquid crystal regions which are aligned in axial symmetry, with respect to an axis in a direction substantially perpendicular to a surface of the first substrate. The main focus in this particular manufacturing method and display is only to achieve a wide viewing angle and improved quality of the displayed information.
The main advantages of the display according to the present invention described herein are reduced production costs compared to other manufacturing methods due to a minimal number of layers, and use of less expensive electro-optical material, combined with a thin and compact display.
SUMMARY OF THE INVENTION
The object of the present invention is to reduce the number of layers and a minimal use of electro-optical material, resulting in a more cost-effective production method and a robust display.
The above object as well as others is achieved with a manufacturing method according to claim 1. The manufacturing method comprises the steps of providing an isolating substrate and making cavities in the top surface of the substrate. For further reference the cavities are referred to as micro pockets. Each micro pockets is applied with holes in the centre extending from the upper surface of the micro pocket and all the way through to the underside of the isolating substrate. A conductive material is applied on the inner surfaces of the micro pockets and into the holes. Thus providing an electrical connection from the underside of the isolating substrate to the inside of the micro pockets. The micro pockets are filled with an electro-optical material and applied a uniform layer of a transparent common conductor to cover all the micro pockets with the electro-optical material. A transparent substrate is applied on top of the transparent conductor to make the top layer. In a preferred embodiment of the invention, the isolating substrate is made of glassfibre composite, plastic or ceramics.
In another preferred embodiment, the forming of the cavities in the top layer of the isolating substrate can be formed by stamping, imprinting, engraving or etching in the isolating substrate. In yet another preferred embodiment, the forming of the cavities in the top layer of the isolating substrate are formed by applying a separate sheet with holes, where each hole corresponds to one picture element or pixel. The sheet is mounted on the isolating substrate with depositing conductive material, gluing or heat sealing.
In a preferred embodiment of the invention, the conductive material is ITO, copper or aluminium. In a preferred embodiment of the invention, the electro-optical material is liquid crystals, LED (inorganic or organic), electrochromic material, or another material changing its optical properties with an applied electric field.
In another preferred embodiment of the invention, the common conductor covering the micro pockets comprises ITO or SnO.
In yet another preferred embodiment of the invention, the transparent substrate is made of glass or plastic.
In addition to the manufacturing method of the thin display, the invention also comprises the display itself with the features stated in the appended claims. According to one aspect, the invention is based on the understanding that in a display of this type, it is advantageous to let the electrode elements, which are commonly called pixels, be connected to a conductive pattern by means of conductive connections which emanate from the electrode elements in the direction away from the layer of electro-optic material, i.e. the underside of the isolating substrate. This will contribute to the form factor of the thin display. Another aspect also contributing to a thin display according to the invention is the cavities made directly in the isolating substrate, or formed with a separate sheet with holes mounted on the isolating substrate.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described by means of exemplifying embodiments with reference to the accompanying drawings, in which:
Fig. 1 is a schematic cross-sectional view of the components in the micro pocket display system of the present invention, Fig. 2 is a schematic cross-sectional view of an assembled display according to the present invention,
Fig. 3 is a schematic view according to method 1 with micro pockets for the electro-optical material formed in isolating substrate.
Fig. 4 is a schematic view according to method 2 with micro pockets for electro- optical material formed in a separate sheet. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
With reference to the figures, the following detailed description explains how the invention is obtained.
Fig. 1 shows a cross-section of the different components making the display. The base of the display is made of an isolating substrate 80 with small cavities 60 imprinted. These cavities 60 will make the picture elements or pixels of the assembled display. For further reference the cavities are referred to as micro pockets. The isolating substrate 80 can be made of a glassfibre composite, plastic, ceramics or another material with isolating characteristics. The micro pockets 60 may be formed by stamping, imprinting, engraving or etching in the substrate 80. After the micro pockets 60 are established, holes 70 in the centre of each micro pocket 60 are made. These holes 70 will in turn provide for an electrical connection between the underside of the substrate and each pocket 60. This connection will be established when a conductive material 40, 50 is applied to the substrate 80. By applying a melted conductive material 40, 50, i.e. copper or aluminium, in the micro pockets 60, the holes 70 will also be filled with the conductive material 40, 50, thus enabling physical contact between the micro pockets 60 and electronic components 90 and wires connected on the underside of the isolating substrate 80. The micro pockets 60 are then filled with an electro- optical material 30, i.e. liquid crystal, LED, electrochromic material. The layer of electro-optical material 30 is covered with a layer of a transparent common conductor 20, i.e. ITO or SnO. The top layer consists of a transparent substrate 10 like glass or plastic.
Fig. 2 shows a cross-section of an assembled display with all the different layers that form the thin display according to the invention. The electrical connections 40, 50 with mounted wires and electronic components 90 will ensure activation of the electro-optical medium 30. The electro-optical material 30 is covered with a layer of a transparent common conductor 20. The top layer consists of a transparent substrate 10 like glass or plastic. Fig. 3 shows a first method of applying the micro pockets 60 in the isolating substrate 70. The cavities or micro pocket are formed by stamping, imprinting, engraving or etching on the substrate 70.
Fig. 4 shows a second method of applying the micro pockets in the isolating substrate 70. This method involves the steps of forming holes 65 in a separate sheet, where each hole 65 corresponds to one picture element or pixel. The sheet 55 is mounted on the isolating substrate 70 with depositing conductive material, gluing or heat sealing. The present invention is not restricted to the manufacturing method and display described herein. The display may be manufactured in different variations, for instance the holes in the cavities may be applied out of centre.

Claims

1. Providing an isolating substrate, a) making cavities in the top surface of the isolating substrate or forming cavities by providing a separate sheet with holes, mounted on the isolating substrate, b) making holes in the centre of each cavity extending from the upper surface of the cavity and all the way through to the underside of the isolating substrate, c) applying a conductive material on the inner surfaces of each cavity and into the holes, thus providing an electrical connection from the underside of the isolating substrate to the inside of the cavities, d) filling up the cavities with an electro-optical material, e) applying a uniform layer of a transparent common conductor to cover all the cavities filled with the electro-optical material, f) applying a transparent substrate on top of the transparent conductor, making up the top layer.
2. A method according to claim 1, where in step a) the said isolating substrate is made of glassfibre composite, plastic or ceramics.
3. A method according to claim 1, where in step b) the cavities made in the top side of the isolating substrate are formed by stamping, imprinting, engraving or etching in the isolating substrate.
4. A method according to claim 1, where in step d) the conductive material is ITO, copper or aluminium.
5. A method according to claim 1, where in step e) the electro-optical material is liquid crystals, LED (inorganic or organic), electrochromic material, or an other material changing its optical properties with an applied electric field.
6. A method according to claim 1, where in step f) the common conductor covering the micro pockets comprises ITO or SnO.
7. A method according to claim 1, where in step g) the transparent substrate is made of glass or plastic.
8. A thin display comprising an isolated substrate, cavities in the substrate, or formed with a separate sheet mounted on the substrate, perforated holes in the centre of the cavities, a conductive material covering the surfaces inside the cavities and the perforated holes, an electro-optical material fill the micro pockets, a uniform layer of transparent conductive material cover all the filled micro pockets, and a top layer of a transparent substrate covering the conductive layer.
9. A display according to claim 8, where the said isolating substrate is made of glassfibre composite, plastic or ceramics.
10. A display according to claim 8, where the cavities are stamped, imprinted, engraved or etched in the print board material.
11.A display according to claim 8, where the conductive material comprises ITO, copper or aluminium.
12. A display according to claim 8, where the conductive material making an electrical connection from the inside of the cavities to the underside of the isolating substrate is applied such that electronic components and wires may be mounted on the underside of the isolating substrate for activation of the electro- optical medium in each cavities.
13. A crystal display according to claim 8, where the electro-optical material comprises liquid crystals, LED, electrochromic, or an other material changing its optical properties with an applied electric field.
14. A crystal display according to claim 8, where the transparent conductive material covering the cavities is made of ITO or SnO.
15. A crystal display according to claim 8, where the transparent substrate comprises glass or plastic or other transparent material.
PCT/NO2002/000421 2001-11-14 2002-11-13 Display with micro pockets WO2003042753A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02778123A EP1454185A1 (en) 2001-11-14 2002-11-13 Display with micro pockets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20015569 2001-11-14
NO20015569A NO314965B1 (en) 2001-11-14 2001-11-14 Micro pocket display

Publications (1)

Publication Number Publication Date
WO2003042753A1 true WO2003042753A1 (en) 2003-05-22

Family

ID=19913024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2002/000421 WO2003042753A1 (en) 2001-11-14 2002-11-13 Display with micro pockets

Country Status (3)

Country Link
EP (1) EP1454185A1 (en)
NO (1) NO314965B1 (en)
WO (1) WO2003042753A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005053005A2 (en) 2003-11-19 2005-06-09 University Of Florida Research Foundation Inc. A method to contact patterned electrodes on porous substrates and devices thereby
WO2007084395A2 (en) * 2006-01-13 2007-07-26 Ntera Limited Active matrix electrochromic display
US7403319B2 (en) 2006-01-13 2008-07-22 Ntera Limited Electrochromic device employing gel or solid polymers having specific channel direction for the conduction of ions
EP2110705A1 (en) * 2008-04-15 2009-10-21 Ricoh Company, Ltd. Display device and manufacturing method of display device
WO2011042431A1 (en) * 2009-10-05 2011-04-14 Acreo Ab Active -matrix electrochromic display device and method for producing the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486318A1 (en) * 1990-11-15 1992-05-20 Seiko Instruments Inc. Semiconductor device for use in a light valve device, and process for manufacturing the same
US5831710A (en) * 1997-02-06 1998-11-03 International Business Machines Corporation Liquid crystal display
US5978062A (en) * 1997-01-31 1999-11-02 National Science Council Method of fabricating closed cavity liquid crystal display having a plurality of cavities extending completely through insulating layer
WO2000069649A1 (en) * 1999-05-14 2000-11-23 3M Innovative Properties Company Thermal transfer of a black matrix containing carbon black
US6163357A (en) * 1996-09-26 2000-12-19 Kabushiki Kaisha Toshiba Liquid crystal display device having the driving circuit disposed in the seal area, with different spacer density in driving circuit area than display area
US6266122B1 (en) * 1998-06-30 2001-07-24 Sharp Kabushiki Kaisha Liquid crystal display device and method for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486318A1 (en) * 1990-11-15 1992-05-20 Seiko Instruments Inc. Semiconductor device for use in a light valve device, and process for manufacturing the same
US6163357A (en) * 1996-09-26 2000-12-19 Kabushiki Kaisha Toshiba Liquid crystal display device having the driving circuit disposed in the seal area, with different spacer density in driving circuit area than display area
US5978062A (en) * 1997-01-31 1999-11-02 National Science Council Method of fabricating closed cavity liquid crystal display having a plurality of cavities extending completely through insulating layer
US5831710A (en) * 1997-02-06 1998-11-03 International Business Machines Corporation Liquid crystal display
US6266122B1 (en) * 1998-06-30 2001-07-24 Sharp Kabushiki Kaisha Liquid crystal display device and method for manufacturing the same
WO2000069649A1 (en) * 1999-05-14 2000-11-23 3M Innovative Properties Company Thermal transfer of a black matrix containing carbon black

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005053005A2 (en) 2003-11-19 2005-06-09 University Of Florida Research Foundation Inc. A method to contact patterned electrodes on porous substrates and devices thereby
WO2005053005A3 (en) * 2003-11-19 2005-09-15 Univ Florida A method to contact patterned electrodes on porous substrates and devices thereby
US7333257B2 (en) 2003-11-19 2008-02-19 University Of Florida Research Foundation, Inc. Device for contacting patterned electrodes on porous substrates
KR100980353B1 (en) 2003-11-19 2010-09-07 유니버시티 오브 플로리다 리서치 파운데이션, 아이엔씨. A method to contact patterned electrodes on porous substrates and devices thereby
WO2007084395A2 (en) * 2006-01-13 2007-07-26 Ntera Limited Active matrix electrochromic display
WO2007084395A3 (en) * 2006-01-13 2008-01-24 Ntera Ltd Active matrix electrochromic display
US7403319B2 (en) 2006-01-13 2008-07-22 Ntera Limited Electrochromic device employing gel or solid polymers having specific channel direction for the conduction of ions
US7420727B2 (en) 2006-01-13 2008-09-02 Ntera Limited Active matrix electrochromic display
EP2110705A1 (en) * 2008-04-15 2009-10-21 Ricoh Company, Ltd. Display device and manufacturing method of display device
WO2011042431A1 (en) * 2009-10-05 2011-04-14 Acreo Ab Active -matrix electrochromic display device and method for producing the same
JP2013506863A (en) * 2009-10-05 2013-02-28 アクレオ アーベー Active matrix electrochromic display device and manufacturing method thereof
US8564870B2 (en) 2009-10-05 2013-10-22 Acreo Ab Active-matrix electrochromic display device and method for producing the same

Also Published As

Publication number Publication date
NO20015569D0 (en) 2001-11-14
NO20015569L (en) 2003-05-15
EP1454185A1 (en) 2004-09-08
NO314965B1 (en) 2003-06-16

Similar Documents

Publication Publication Date Title
CN100412665C (en) Liquid crystal display device and manufacturing method thereof
KR102110013B1 (en) Multi-layer expanding electrode structures for backplane assemblies
US20110006316A1 (en) Lighting device, display, and method for manufacturing the same
CN100395607C (en) Translucent reflective type liquid crystal display
WO2010145492A1 (en) Electromagnetic induction type lcd panel and method for manufacturing the same and liquid crystal display
KR20020075951A (en) packaging method of liquid crystal displays and the structure thereof
KR102308588B1 (en) Laminated electro-optic displays and methods of making same
KR20200022626A (en) Display panel having micro led and method of manufacturing the same
US9874788B2 (en) Display panel, method of manufacturing the same, and display device
CN102445807B (en) Electrophoretic display device and method for manufacturing the same
CN211044904U (en) A drive plate for declining L ED display
CN108363229A (en) Display device and manufacturing method thereof
KR20070002033A (en) Process for micro-grooving a polymer alignment layer for a liquid crystal display
WO2002073298A2 (en) Flexible liquid crystal display
KR20010042611A (en) Method for mounting TCP film to display panel
KR20030071646A (en) Display device and method for fabricating the display device
EP1454185A1 (en) Display with micro pockets
US6923701B2 (en) Display with micro pockets
CN100498468C (en) Manufacture method of LED backlight unit without printed circuit board
CN114879416B (en) Display panel and display device
CN109324432B (en) Display panel and manufacturing method thereof
CN211507681U (en) Transparent display device
KR19990072824A (en) Reflection type liquid crystal display device
US20060221294A1 (en) Liquid crystal display device and method for manufacturing the same
CN111430402A (en) Light-emitting assembly, preparation method thereof, display substrate, backlight module and display device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2002778123

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2002778123

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP