US20020047560A1 - Apparatus and method for patterning pixels of an electroluminescent display device - Google Patents

Apparatus and method for patterning pixels of an electroluminescent display device Download PDF

Info

Publication number
US20020047560A1
US20020047560A1 US09/837,388 US83738801A US2002047560A1 US 20020047560 A1 US20020047560 A1 US 20020047560A1 US 83738801 A US83738801 A US 83738801A US 2002047560 A1 US2002047560 A1 US 2002047560A1
Authority
US
United States
Prior art keywords
method according
patterning
molding plate
pixel
electroluminescent material
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.)
Abandoned
Application number
US09/837,388
Inventor
Jae Lee
Sung Bae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
LG Display Co Ltd
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
Priority to KR1020000021297A priority Critical patent/KR100649722B1/en
Priority to KRP2000-21297 priority
Application filed by LG Display Co Ltd filed Critical LG Display Co Ltd
Assigned to LG.PHILIPS LCD CO., LTD. reassignment LG.PHILIPS LCD CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAE, SUNG JOON, LEE, JAE YOON
Publication of US20020047560A1 publication Critical patent/US20020047560A1/en
Assigned to LG DISPLAY CO., LTD. reassignment LG DISPLAY CO., LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: LG.PHILIPS LCD CO., LTD.
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B33/00Electroluminescent light sources
    • H05B33/10Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/0001Processes specially adapted for the manufacture or treatment of devices or of parts thereof
    • H01L51/0002Deposition of organic semiconductor materials on a substrate
    • H01L51/0003Deposition of organic semiconductor materials on a substrate using liquid deposition, e.g. spin coating
    • H01L51/0004Deposition of organic semiconductor materials on a substrate using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing, screen printing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/28Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
    • H01L27/32Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
    • H01L27/3206Multi-colour light emission
    • H01L27/3211Multi-colour light emission using RGB sub-pixels
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/28Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
    • H01L27/32Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
    • H01L27/3241Matrix-type displays
    • H01L27/3295Matrix-type displays including banks or shadow masks
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L51/00Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
    • H01L51/50Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED];
    • H01L51/56Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof

Abstract

In a method and apparatus for patterning forming pixels into minute patterns in an electroluminescent display device, a molding plate having convex and concave portions is attached to a roller and rotated. A polymer solution is applied to the molding plate via another roller. The polymer solution thus coated on the molding plate is printed on a substrate by rotation of the molding plate. Barrier ribs may be formed on the substrate to prevent spreading of the deposited polymer solution.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • This invention relates to a technique of fabricating flat panel display devices, and more particularly to an apparatus and method for patterning an electroluminescent display device for forming pixels into minute patterns in such an electroluminescent display device. [0002]
  • 2. Description of the Related Art [0003]
  • Recently, various flat panel display devices have been developed which are reduced in weight and bulk, thereby eliminating several disadvantages of a cathode ray tube (CRT). Such flat panel display devices include a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP), and an electroluminescent (EL) display device. Heightening the display quality of flat panel display devices and providing flat panel displays with a large-scale screen have been actively investigated. The PDP has been highlighted as a display device having the advantages of a light weight, a thin thickness and a small bulk as well as a large-scale screen owing to its simple structure and manufacturing process. However, the PDP has the drawbacks of a low emission efficiency, a low brightness and a high power consumption. [0004]
  • An active matrix LCD employing thin film transistors (TFT's) as switching devices is difficult to manufacture as a large-scale screen. An active matrix LCD exploits the efficiencies of semiconductor processing techniques, and has been largely used as a display device for notebook computers. Consequently, demand for large-scale screens has been insufficient to justify large-scale semiconductor processing. However, the LCD has large drawbacks in that it is difficult to provide a large screen area and power consumption is high due to a backlight unit. Also, the LCD has the undesirable characteristics of a large light loss and a narrow viewing angle due to a polarizing filter, a prism sheet and a diffuser, etc. [0005]
  • EL display devices may be classified into inorganic EL devices and organic EL devices, depending on the type of material used in a light-emitting layer. Such a device is “self-emitting,” emitting its own light. The EL display device has the great advantages of a rapid response speed, high emission efficiency, good brightness, and a large viewing angle. [0006]
  • In the organic EL display device as shown in FIG. 1, an anode electrode [0007] 31 composed of a transparent electrode pattern is provided on a glass substrate 2, and a hole injecting layer 32, a light-emitting layer 33 and an electron injecting layer 34 are sequentially disposed thereon. A cathode electrode 35 composed of a metal electrode is provided on the electron-injecting layer 34. When a driving voltage is applied to the anode electrode 31 and the cathode electrode 35, holes within the hole injecting layer 32 and electrons within the electron injecting layer 34 migrate toward the light-emitting layer 33 to excite a fluorescent material within the light-emitting layer 33. A picture or an image is displayed by the visible light generated from the light-emitting layer 33 in this manner. It is difficult to manufacture such an EL display device with a large-scale screen, because current mass-production techniques and processes are inadequate to repetitively manufacture a screen of more than 10 inches.
  • Studies of patterning pixels of the EL device have been made, but it is not yet conventionally possible to make a minute pattern and to make a repetitive manufacturing of red, green and blue pixels for a large-scale device. For example, an organic EL material cannot be patterned by photolithography because it is liable to be melted by a solvent or moisture. For this reason, the organic EL material cannot be patterned by photolithographic techniques which are advantageous for formation of minute patterns. A low-molecule organic EL material may be patterned using a method of independently forming each of red, green and blue materials using a minute-patterned shadow mask, but such a technique is limited by the accuracy with which shadow masks may be constructed. Such masks do not have a resolution beyond a certain level, and are difficult to accurately use over a large field due to a tension deviation, etc. of the shadow mask. A method of patterning pixels using an ink-jet injection head for a high-molecule or polymer organic EL material has been studied. However, it is difficult to form a pinhole-free thin film of less than 1000 Å thickness using such a method. A scheme of providing color filters on a white EL material, or of providing a color changing medium on a blue EL material, has been considered, but such a scheme causes a large light loss due to the color filters or the color changing medium. [0008]
  • SUMMARY OF THE INVENTION
  • Accordingly, the present invention is directed to an apparatus and method of manufacturing an electroluminescent display device that substantially obviate one or more of the problems due to limitations and disadvantages of the related art. [0009]
  • In accordance with the purpose of the invention, as embodied and broadly described, in one aspect the invention includes a patterning apparatus for an electroluminescent display, including: a molding plate provided with a plurality of convex portions and concave portions; a polymer supplying roller adjacent to the molding plate to apply an electroluminescent material to the molding plate via rotational movement; and a molding roller attached to the molding plate to apply the electroluminescent material on the molding plate to an adjacent substrate via rotational movement. [0010]
  • In another aspect, the invention includes a method of patterning an electroluminescent display, including: providing a molding plate with convex and concave portions on a molding roller; applying an electroluminescent material to the convex portions of the molding plate; and printing the electroluminescent material from the molding plate onto a substrate by rotating the molding roller so that the material on the convex portions contacts the substrate. [0011]
  • The method and apparatus advantageously produce an electroluminescent display having pixels formed in minute patterns. [0012]
  • It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. [0013]
  • The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate one embodiment of the invention and together with the description serve to explain the principles of the invention.[0014]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • These and other objects of the invention will be apparent from the following detailed description of the present invention with reference to the accompanying drawings. [0015]
  • FIG. 1 is a schematic section view showing the structure of a conventional organic electroluminescent display device. [0016]
  • FIG. 2 is a section view showing the structure of a patterning apparatus for an electroluminescent display device according to a first embodiment of the present invention. [0017]
  • FIG. 3 is a partial enlarged view of the “III” portion indicated by a dotted circle in FIG. 2. [0018]
  • FIG. 4 is a detailed perspective view of the molding plate [0019] 6 shown in FIG. 2.
  • FIG. 5 is a partial enlarged view of the “V” portion indicated by a dotted circle in FIG. 4. [0020]
  • FIG. 6A to FIG. 6C are sectional views representing a process of forming pixel patterns of the electroluminescent display device using the patterning device in FIG. 2. [0021]
  • FIGS. 7A to FIG. 7C are sectional views showing spreading of the pixel pattern of FIG. 6C. [0022]
  • FIG. 8 is a plan view showing barrier ribs provided between pixel patterns in a patterning method of pixel patterns according to a second embodiment of the present invention. [0023]
  • FIG. 9A to FIG. 9D are sectional views representing a process of forming pixel patterns of an electro- luminescent display device on a substrate provided with the barrier ribs shown in FIG. 8. [0024]
  • FIG. 10 is a plan view showing barrier ribs provided between pixel patterns in a patterning method of pixel patterns according to a third embodiment of the present invention. [0025]
  • FIG. 11A to FIG. 11D are sectional views representing a process of forming pixel patterns of an electro luminescent display device on a substrate provided with the barrier ribs shown in FIG. 10.[0026]
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 2 shows a patterning apparatus for an electroluminescent display device according to a first embodiment of the present invention. The patterning apparatus in FIG. 2 includes a molding plate [0027] 6 provided with lands 12 and grooves 14. The molding plate 6 is attached to a molding roller 4. The apparatus also includes a polymer supply roller 8 for applying an EL polymer solution 16 onto the lands 12 of the molding plate 6. Under the molding roller 4, a glass substrate 2 is supplied to receive EL polymer solution 16 from the molding plate 6. Various types of EL polymers and other EL materials suitable for use with such an apparatus will be appreciated and employed by those skilled in the display art.
  • The lands [0028] 12 may protrude in a stripe shape (i.e., roughly linearly) between the grooves 14 as shown in FIG. 4. As shown in greater detail in FIG. 5, each land 12 includes a number of indentations 12 a extending along its entire length. These indentations 12 a help the lands 12 pick up and retain a greater amount of polymer material 16 from contact with the supply roller 8.
  • As shown in greater detail in FIG. 3, the lands [0029] 12 contact the polymer supply roller 8, which is coated with the EL polymer solution 16, and are uniformly coated with the EL polymer solution 16 to a desired thickness (e.g., less than 1000 Å). The grooves 14 of the molding plate 6 are not coated with the EL polymer solution 16, because they do not contact the polymer supply roller 8. By its rotating motion, the molding roller 4 causes the EL polymer solution 16 coated on the surface of the polymer supply roller 8 to be transferred to the lands 12 of the molding plate 6. Also, the molding roller 4 causes the lands 12 of the molding plate 6 coated with the EL polymer solution 16 to come in contact with the glass substrate 2 by its rotating motion.
  • A blade or other roller (not shown) may be installed adjacent to the surface of the polymer supply roller [0030] 8 so that the polymer solution 16 is evenly coated with a uniform thickness on the roller 8. This causes the solution 16 transferred to the molding roller 4, as shown in FIG. 3, also to be of uniform thickness.
  • A process of patterning a light-emitting layer of the EL display device using the patterning apparatus as mentioned above will be described with respect to FIGS. [0031] 6A-6C. First, an EL polymer solution 16 having any one of red, green and blue colors is applied to the polymer supply roller 8. Then, as shown in FIG. 3, the EL polymer solution 16 is coated on the polymer supply roller 8 by rotational movement of the polymer supply roller 8. At this time, the molding roller 4 is interlinked with the rotating polymer supply roller 8 to be rotated in an opposite direction to the polymer supply roller 8. The EL polymer solution 16 coated on the lands 12 of the molding plate 6 contacts the glass substrate 2 supplied under the molding roller 4 by a rotating motion of the molding roller 4, as shown in FIG. 6A. At this time, the EL polymer solution 16 is inversely propagated onto the glass substrate 2.
  • The lands [0032] 12 printed with the polymer solution 16 on the glass substrate 2 are separated from the glass substrate 2 as shown in FIG. 6B by a rotation of the molding roller 4. The EL polymer solution 16 printed on the glass substrate 2 deforms to have an even surface as shown in FIG. 6C just after the printing. Such evening of the surface of solution 16 is due to a material property of the polymer solution. Subsequently, the EL polymer solution 16 on the glass substrate 2 is heated at a desired temperature. As a result, the pixel pattern 18 shown in FIG. 6C is provided on the glass substrate 2. After the pixel pattern 18 with a specific color is formed as described above, another pixel pattern with a different color is provided in a similar manner.
  • The patterning method of printing the pixel patterns on the glass substrate [0033] 2 using the roller as described above is applicable to the formation of the red, green and blue patterns of the light-emitting layer, as shown in the above embodiment, but may also be used to form other organic material layers included in the EL display. Examples of such other layers are the hole injecting layer 32 or the electron injecting layer 34 shown in FIG. 1. Such a patterning method reduces waste of material compared to, for example, a conventional spin-coating method.
  • However, the method of forming the EL organic material layer on the substrate using the roller tends to accelerate a membrane spread of the pixel pattern or the organic material layer [0034] 20 a, as shown in FIGS. 7A to 7C. Just after printing, a wetting characteristic and a leveling characteristic of the EL polymer solution cause the layer 20 a to increase in width and decrease in uniformity. As a result, the pixel pattern or the organic material layer 20 a formed on the substrate has not only a non-uniform thickness, but also worsened color purity and device characteristics.
  • In order to reduce such membrane spread of the pixel pattern or the organic material layer [0035] 20 a, the patterning method according to a second embodiment of the present invention provides barrier ribs 50 for reducing such membrane spread of the organic material between the adjacent pixel pattern areas as shown in FIG. 8. Red (R), green (G), and blue (B) pixel patterns 18 are formed between the barrier ribs 50.
  • Referring now to FIG. 9A, the barrier ribs [0036] 50 are provided with a desired spacing on the glass substrate 2 in the patterning method according to the second embodiment. Between the barrier ribs 50, an indium-tin-oxide (ITO) pattern 52 used as a pixel electrode is provided. The barrier rib 50 is formed with a larger thickness or height than a pixel pattern or an organic material layer 18 to be formed on the glass substrate 2. A material of the barrier rib 50 can be selected from any one of inorganic materials such as SiNX and SiO2, etc. and organic materials such as a polyimide and an acryl group, etc. Depending on the material used, the barrier ribs 50 may be formed by conventional photolithographic processes. Subsequently, as shown in FIGS. 9B-9D, the EL polymer solution 16 is printed on the ITO pattern 52 using the molding roller 4 and the molding plate 6 as described above. At this time, any membrane spread of the EL polymer solution 16 is limited by the barrier ribs 50, so that the EL polymer solution 16 is formed with a uniform thickness on the glass substrate 2. After the red (R) pixel pattern 18 is formed as shown in FIG. 9D, green and blue pixel patterns are sequentially formed in a similar manner.
  • FIG. 10 and FIGS. 11A to [0037] 11D show a patterning method according to a third embodiment of the present invention, which is applied to an EL device provided with TFT's as switching devices.
  • Referring to FIG. 10, barrier ribs [0038] 40 are provided on the glass substrate 2 to cover the edges of ITO patterns 42. The barrier rib 40 covers the edge of the ITO pattern 42, a source line-44, a gate line 48 and a TFT 48. Also, the barrier rib 40 is formed into a larger thickness than the pixel pattern or the organic material layer 18 printed on the ITO pattern 42. A material of the barrier rib 40 can be selected from any one of inorganic materials such as SiNX and SiO2, etc. and organic materials such as a polyimide and an acryl group, etc.
  • Referring now to FIGS. [0039] 11A, the barrier rib 40 has a neck 40 b with a small width and a head 40 a with a large width. The edge of the ITO pattern 42 is formed adjacent to the neck 40 b. Thus, the edge of the ITO pattern 42 is overlapped by the head 40 a of the barrier rib 40. Subsequently, the EL polymer solution 16 is printed on the ITO pattern 42 as shown in FIGS. 11B and 11C using the molding roller 4 and the molding plate 6 as mentioned above. Of course, the molding roller 4 according to this third embodiment of the invention has lands and grooves shaped to correspond to the pixel and barrier structure shown in FIG. 10. At this time, a membrane spread of the EL polymer solution 16 is limited by the head 40 a of the barrier rib 40, so that the EL polymer solution 16 is formed into a uniform thickness on the glass substrate 2. Heating fixes the polymer solution 16 into a pixel pattern 18. After the red (R) pixel pattern 18 is formed in this manner, the green and blue pixel patterns are sequentially formed in a similar manner.
  • As described above, according to the present invention, after a molding plate molded into a pixel pattern shape is coated with the EL polymer solution, the solution is inversely propagated onto the glass substrate. Pixels with minute patterns are formed in this manner. Furthermore, barrier ribs may be provided between the pixel patterns to prevent the membrane spread at the time of printing the EL polymer solution, and to minimize any color deterioration of the devices. By using such barrier ribs, reliability of such a device may be raised and its life may be prolonged. [0040]
  • Although the present invention has been explained by the embodiments shown in the drawings described above, it should be understood by the person ordinarily skilled in the art that the invention is not limited to the embodiments, but rather that various changes or modifications thereof are possible without departing from the spirit of the invention. For example, it is envisioned that the molding plate [0041] 6 and the roller 4 could be formed as a single, unitary piece. Accordingly, the scope of the invention shall be determined only by the appended claims and their equivalents.

Claims (21)

What is claimed is:
1. A patterning apparatus for an electroluminescent display, comprising:
a molding plate provided with a plurality of convex portions and concave portions;
a polymer supplying roller adjacent to the molding plate to apply an electroluminescent material to the molding plate via rotational movement; and
a molding roller attached to the molding plate to apply the electroluminescent material on the molding plate to an adjacent substrate via rotational movement.
2. The patterning apparatus according to claim 1, wherein each of the convex portions includes a land having a shape of stripe and extending linearly across a surface of the molding plate.
3. The patterning apparatus according to claim 1, wherein each of the convex portions includes a land having a small rectangular form.
4. The patterning apparatus according to claim 1, wherein each of the convex portions includes a land having a shape corresponding to a pixel pattern.
5. The patterning apparatus according to claim 2˜4, wherein a surface of the land contains a plurality of minute indentations.
6. The patterning apparatus according to claim 1, wherein the substrate includes a barrier rib for preventing electroluminescent material from spreading.
7. The patterning apparatus according to claim 6, the barrier rib is positioned between the pixels adjacent to each other and formed in a shape of stripe.
8. The patterning apparatus according to claim 6, the barrier rib is positioned between pixel and pixel, and formed in a shape of lattice.
9. A method of patterning an electroluminescent display, comprising:
providing a molding plate with convex and concave portions on a molding roller; applying an electroluminescent material to the land of the convex portions of the molding plate; and
printing the electroluminescent material from the molding plate onto a substrate by rotating the molding roller so that a land on each convex portions contacts the substrate.
10. The method according to claim 9, wherein the applying and printing steps are repeated to form red, green and blue pixel patterns on the substrate.
11. The method according to claim 9, further comprising:
forming pixel electrodes between the barrier ribs; and
forming barrier ribs between said pixel electrodes for preventing a membrane spread of the electroluminescent material,
wherein the printing step deposits the electroluminescent material on the pixel electrodes.
12. The method according to claim 11, wherein each of the barrier ribs defines a boundary between pixels.
13. The method according to claim 11, wherein an upper portion of the barrier rib overlaps an edge of a pixel electrode.
14. The patterning method according to claim 11, wherein a height of the barrier rib is larger than a combined thickness of an adjacent electroluminescent material and pixel electrode.
15. The patterning method according to claim 11, wherein a material of the barrier rib is selected from any one of SiNX and SiO2.
16. The patterning method according to claim 11, wherein a material of the barrier rib is selected from any one of a polyimide and an acryl-group organic compound.
17. The patterning method according to claim 9, wherein the electroluminescent material includes a polymer solution.
18. The method according to claim 9, wherein the applying step includes:
coating a supply roller with the electroluminescent material; and
rotating both the supply roller and the molding roller so that the land on each convex portions contact the electroluminescent material on the supply roller.
19. The method according to claim 18, wherein the coating step includes:
causing the electroluminescent material to have a uniform thickness on the supply roller.
20. The method according to claim 11, the barrier rib is positioned between the pixels adjacent to each other and formed in a shape of stripe.
21. The method according to claim 11, the barrier rib is positioned between pixel and pixel, and formed in a shape of lattice.
US09/837,388 2000-04-21 2001-04-19 Apparatus and method for patterning pixels of an electroluminescent display device Abandoned US20020047560A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020000021297A KR100649722B1 (en) 2000-04-21 2000-04-21 Apparatus for Patterning Electro-luminescence Display Device and Method of Patterning Electro-luminescence Display Device using the same
KRP2000-21297 2000-04-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/783,220 US7963757B2 (en) 2000-04-21 2007-04-06 Apparatus and method for patterning pixels of an electro-luminescent display device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/783,220 Division US7963757B2 (en) 2000-04-21 2007-04-06 Apparatus and method for patterning pixels of an electro-luminescent display device

Publications (1)

Publication Number Publication Date
US20020047560A1 true US20020047560A1 (en) 2002-04-25

Family

ID=19666166

Family Applications (2)

Application Number Title Priority Date Filing Date
US09/837,388 Abandoned US20020047560A1 (en) 2000-04-21 2001-04-19 Apparatus and method for patterning pixels of an electroluminescent display device
US11/783,220 Active US7963757B2 (en) 2000-04-21 2007-04-06 Apparatus and method for patterning pixels of an electro-luminescent display device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/783,220 Active US7963757B2 (en) 2000-04-21 2007-04-06 Apparatus and method for patterning pixels of an electro-luminescent display device

Country Status (2)

Country Link
US (2) US20020047560A1 (en)
KR (1) KR100649722B1 (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040121696A1 (en) * 2002-12-20 2004-06-24 Kim Kyung Man Apparatus and method of fabricating electro luminescence display device
US6756165B2 (en) * 2000-04-25 2004-06-29 Jsr Corporation Radiation sensitive resin composition for forming barrier ribs for an EL display element, barrier rib and EL display element
US20040185188A1 (en) * 2003-02-05 2004-09-23 Komura Tech Co., Ltd. Layer forming relief
US20040202778A1 (en) * 2002-11-26 2004-10-14 Masao Nishiguchi Method of manufacturing organic electroluminescence device
US20070000403A1 (en) * 2005-06-30 2007-01-04 Lg Philips Lcd Co., Ltd. Printing apparatus and fabricating method thereof
US20070066179A1 (en) * 2005-09-22 2007-03-22 Akio Nakamura Manufacturing method of a printed matter and a printed matter
US20070087645A1 (en) * 2005-10-19 2007-04-19 Akiko Tsujii Manufacturing method of a display device
WO2007117672A2 (en) * 2006-04-07 2007-10-18 Qd Vision, Inc. Methods of depositing nanomaterial & methods of making a device
WO2007120877A2 (en) * 2006-04-14 2007-10-25 Qd Vision, Inc. Transfer surface for manufacturing a light emitting device
US20080032039A1 (en) * 2006-08-07 2008-02-07 Toppan Printing Co., Ltd. Method of manufacturing organic electroluminescence device
US20080173667A1 (en) * 2007-01-19 2008-07-24 Palo Alto Research Center Incorporated Dispensing of liquid with arrays of tubular quill structures
US20090084279A1 (en) * 2007-09-28 2009-04-02 Toppan Printing Co., Ltd. Relief printing plate and printed matter
US20090220679A1 (en) * 2002-11-19 2009-09-03 Casio Computer Co., Ltd. Display apparatus, and display apparatus manufacturing method and apparatus
US20090283742A1 (en) * 2006-06-24 2009-11-19 Seth Coe-Sullivan Methods and articles including nanomaterial
US20090286338A1 (en) * 2006-06-24 2009-11-19 Seth Coe-Sullivan Methods for depositing nanomaterial, methods for fabricating a device, methods for fabricating an array of devices and compositions
US20090283743A1 (en) * 2006-09-12 2009-11-19 Seth Coe-Sullivan Composite including nanoparticles, methods, and products including a composite
US20100265307A1 (en) * 2007-06-25 2010-10-21 Linton John R Compositions and methods including depositing nanomaterial
JP2012204661A (en) * 2011-03-25 2012-10-22 Toppan Printing Co Ltd Thin film transistor device and manufacturing method of the same
US8618561B2 (en) 2006-06-24 2013-12-31 Qd Vision, Inc. Methods for depositing nanomaterial, methods for fabricating a device, and methods for fabricating an array of devices
CN104882569A (en) * 2015-06-24 2015-09-02 京东方科技集团股份有限公司 OLED display element, preparing method thereof, display panel and display device
US20160307517A1 (en) * 2012-05-31 2016-10-20 Samsung Display Co., Ltd. Display panel
US20160320645A1 (en) * 2015-04-29 2016-11-03 Samsung Display Co., Ltd. Apparatus for manufacturing alignment layer, and method of manufacturing liquid crystal display device by using the same

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100743104B1 (en) * 2001-07-19 2007-07-27 엘지.필립스 엘시디 주식회사 Apparatus for Patterning of Electro-luminescence Display Device
KR100905332B1 (en) * 2002-12-14 2009-07-02 엘지디스플레이 주식회사 Apparatus And Method Of Fabricating Of Electro-luminescence Display Device
KR20050112456A (en) 2004-05-25 2005-11-30 삼성에스디아이 주식회사 Organic electroluminescence displaye and fabrication method of the same
KR100789591B1 (en) * 2005-08-02 2007-12-28 주식회사 엘지화학 Method for patterning coatings
CN101394936B (en) * 2006-03-08 2011-05-11 富士胶片株式会社 Coating apparatus
GB2453766A (en) * 2007-10-18 2009-04-22 Novalia Ltd Method of fabricating an electronic device
KR101418123B1 (en) * 2007-12-29 2014-07-14 엘지디스플레이 주식회사 Method and Apparatus For Fabricating of OrganicElectro-luminescence Display Device
CN103286032B (en) * 2013-05-31 2016-05-04 京东方科技集团股份有限公司 Coating apparatus and the color filter substrate fabrication process
CN106784395B (en) * 2016-11-28 2018-06-22 昆山工研院新型平板显示技术中心有限公司 Manufacturing method for monitor and display

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661081A (en) * 1968-11-01 1972-05-09 Hurletron Controls Division Process of flexographic printing utilizing an electrical field
US4611539A (en) * 1985-09-30 1986-09-16 Carl Ireton Device and method for the precision mounting of flexible printing plates
US5162119A (en) * 1991-04-09 1992-11-10 Nabisco, Inc. Printing and forming apparatus for making printed baked goods
US5270846A (en) * 1990-08-13 1993-12-14 Canon Kabushiki Kaisha Ferroelectric liquid crystal device having plural inorganic insulating layers
US5597618A (en) * 1993-04-30 1997-01-28 Minnesota Mining And Manufacturing Company Application member for applying a coating material to a substrate
US5674553A (en) * 1992-01-28 1997-10-07 Fujitsu Limited Full color surface discharge type plasma display device
US5682043A (en) * 1994-06-28 1997-10-28 Uniax Corporation Electrochemical light-emitting devices
US5701055A (en) * 1994-03-13 1997-12-23 Pioneer Electronic Corporation Organic electoluminescent display panel and method for manufacturing the same
US5827577A (en) * 1996-11-22 1998-10-27 Engelhard Corporation Method and apparatus for applying catalytic and/or adsorbent coatings on a substrate
US6194837B1 (en) * 1997-07-02 2001-02-27 Seiko Epson Corporation Display device with thin film transistor (TFT) and organic semiconductor film in a luminescent element
US6213018B1 (en) * 1999-05-14 2001-04-10 Pcc Artwork Systems Flexographic printing plate having improved solids rendition
US6274887B1 (en) * 1998-11-02 2001-08-14 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and manufacturing method therefor

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386731A (en) * 1942-09-05 1945-10-09 Johnson & Johnson Segregated adhesive tape calender
US2408144A (en) * 1944-01-15 1946-09-24 William C Hucbner Means for printing
US4313995A (en) * 1976-11-08 1982-02-02 Fortin Laminating Corporation Circuit board and method for producing same
US4091125A (en) * 1976-11-08 1978-05-23 Delgadillo Joseph A Circuit board and method for producing same
US4152986A (en) * 1976-12-03 1979-05-08 Dadowski Gilbert F Method and apparatus for printing raised ink images
JPS6032578B2 (en) * 1978-04-11 1985-07-29 Takiron Co
US4440082A (en) * 1978-11-13 1984-04-03 Dayco Corporation Electrostatically assisted printing system
US4507173A (en) * 1980-08-29 1985-03-26 James River-Norwalk, Inc. Pattern bonding and creping of fibrous products
US4425469A (en) * 1980-09-08 1984-01-10 Rohm And Haas Company Polyacrylamide flow modifier-adsorber
FR2526370B1 (en) * 1982-05-10 1986-01-17 Mourrellon Georges Method and device for inking printing machine
JPH02146127A (en) * 1988-11-28 1990-06-05 Canon Inc Production of optical information recording medium
CA2019046C (en) * 1989-06-16 1998-05-12 Satoshi Okazaki Method of printing fine patterns
JP2665264B2 (en) * 1989-12-22 1997-10-22 キヤノン株式会社 The continuous process the substrate for optical recording medium
US5250996A (en) * 1990-04-12 1993-10-05 Fuji Xerox Co., Ltd. Method for fixing full color toner images
US5312569A (en) * 1991-10-30 1994-05-17 Poly-Optical Products, Inc. Method for marring fiber optic substrates
DE69410869D1 (en) * 1993-04-05 1998-07-16 De La Rue Giori Sa printing plate
US5500299A (en) * 1993-06-29 1996-03-19 Xerox Corporation Fusing components containing grafted titamer compositions
US5624775A (en) * 1994-02-16 1997-04-29 Corning Incorporated Apparatus and method for printing a color filter
WO1995012494A1 (en) * 1993-11-03 1995-05-11 Corning Incorporated Color filter and method of printing
US5972545A (en) * 1993-11-03 1999-10-26 Corning Incorporated Method of printing a color filter
US5480938A (en) * 1993-11-22 1996-01-02 Xerox Corporation Low surface energy material
MY115166A (en) * 1993-12-29 2003-04-30 Faustel Inc Process for resin impregnation of a porous web
US5514503A (en) * 1994-10-17 1996-05-07 Corning Incorporated Apparatus and method for printing a color filter
US5540147A (en) * 1994-12-02 1996-07-30 Corning Incorporated Method for forming a contoured planarizing layer for a color filter
JPH1082907A (en) 1996-03-28 1998-03-31 Corning Inc Color filter and its production
US5731152A (en) * 1996-05-13 1998-03-24 Motorola, Inc. Methods and systems for biological reagent placement
JP3786427B2 (en) 1996-09-19 2006-06-14 セイコーエプソン株式会社 Method for manufacturing a light emitting device
DE19642634A1 (en) * 1996-10-16 1998-04-23 Philips Patentverwaltung Printing form for a rotary high-pressure process
JP3570857B2 (en) * 1997-05-20 2004-09-29 パイオニア株式会社 Organic el display panel and a method of manufacturing the same
US6114404A (en) * 1998-03-23 2000-09-05 Corning Incorporated Radiation curable ink compositions and flat panel color filters made using same
JP3687953B2 (en) * 2000-02-22 2005-08-24 東北パイオニア株式会社 The organic electroluminescence display panel and a manufacturing method thereof
TW472503B (en) * 2000-04-26 2002-01-11 Ritdisplay Corp Manufacture method of photosensitive polyimide pattern definition layer for organic light-emitting diodes display
JP3757777B2 (en) * 2000-09-29 2006-03-22 セイコーエプソン株式会社 Method of manufacturing an electro-optical device
US7132796B2 (en) * 2003-12-30 2006-11-07 Lg.Philips Lcd Co., Ltd Organic electroluminescent device and method of fabricating the same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661081A (en) * 1968-11-01 1972-05-09 Hurletron Controls Division Process of flexographic printing utilizing an electrical field
US4611539A (en) * 1985-09-30 1986-09-16 Carl Ireton Device and method for the precision mounting of flexible printing plates
US5270846A (en) * 1990-08-13 1993-12-14 Canon Kabushiki Kaisha Ferroelectric liquid crystal device having plural inorganic insulating layers
US5162119A (en) * 1991-04-09 1992-11-10 Nabisco, Inc. Printing and forming apparatus for making printed baked goods
US5674553A (en) * 1992-01-28 1997-10-07 Fujitsu Limited Full color surface discharge type plasma display device
US5597618A (en) * 1993-04-30 1997-01-28 Minnesota Mining And Manufacturing Company Application member for applying a coating material to a substrate
US5701055A (en) * 1994-03-13 1997-12-23 Pioneer Electronic Corporation Organic electoluminescent display panel and method for manufacturing the same
US5682043A (en) * 1994-06-28 1997-10-28 Uniax Corporation Electrochemical light-emitting devices
US5827577A (en) * 1996-11-22 1998-10-27 Engelhard Corporation Method and apparatus for applying catalytic and/or adsorbent coatings on a substrate
US6194837B1 (en) * 1997-07-02 2001-02-27 Seiko Epson Corporation Display device with thin film transistor (TFT) and organic semiconductor film in a luminescent element
US6274887B1 (en) * 1998-11-02 2001-08-14 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and manufacturing method therefor
US6213018B1 (en) * 1999-05-14 2001-04-10 Pcc Artwork Systems Flexographic printing plate having improved solids rendition

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6756165B2 (en) * 2000-04-25 2004-06-29 Jsr Corporation Radiation sensitive resin composition for forming barrier ribs for an EL display element, barrier rib and EL display element
US20090220679A1 (en) * 2002-11-19 2009-09-03 Casio Computer Co., Ltd. Display apparatus, and display apparatus manufacturing method and apparatus
US20040202778A1 (en) * 2002-11-26 2004-10-14 Masao Nishiguchi Method of manufacturing organic electroluminescence device
SG123580A1 (en) * 2002-11-26 2006-07-26 Sony Corp Method of manufacturing organic electroluminescence device
US7032509B2 (en) * 2002-12-20 2006-04-25 Lg.Philips Lcd Co., Ltd. Apparatus and method of fabricating electro luminescence display device
US20040121696A1 (en) * 2002-12-20 2004-06-24 Kim Kyung Man Apparatus and method of fabricating electro luminescence display device
US20040185188A1 (en) * 2003-02-05 2004-09-23 Komura Tech Co., Ltd. Layer forming relief
US7695800B2 (en) * 2003-02-05 2010-04-13 Komura Tech Co., Ltd. Layer forming relief
US20070000403A1 (en) * 2005-06-30 2007-01-04 Lg Philips Lcd Co., Ltd. Printing apparatus and fabricating method thereof
US7582331B2 (en) * 2005-06-30 2009-09-01 Lg. Display Co., Ltd. Printing apparatus and fabricating method thereof
US20070066179A1 (en) * 2005-09-22 2007-03-22 Akio Nakamura Manufacturing method of a printed matter and a printed matter
US7686665B2 (en) * 2005-09-22 2010-03-30 Toppan Printing Co., Ltd. Manufacturing method of a printed matter and a printed matter
US20070087645A1 (en) * 2005-10-19 2007-04-19 Akiko Tsujii Manufacturing method of a display device
WO2007117672A2 (en) * 2006-04-07 2007-10-18 Qd Vision, Inc. Methods of depositing nanomaterial & methods of making a device
US9390920B2 (en) 2006-04-07 2016-07-12 Qd Vision, Inc. Composition including material, methods of depositing material, articles including same and systems for depositing material
US9252013B2 (en) 2006-04-07 2016-02-02 Qd Vision, Inc. Methods and articles including nanomaterial
US9034669B2 (en) * 2006-04-07 2015-05-19 Qd Vision, Inc. Methods of depositing nanomaterial and methods of making a device
US20090208753A1 (en) * 2006-04-07 2009-08-20 Seth Coe-Sullivan Methods and articles including nanomaterial
US8470617B2 (en) 2006-04-07 2013-06-25 Qd Vision, Inc. Composition including material, methods of depositing material, articles including same and systems for depositing material
US20090215208A1 (en) * 2006-04-07 2009-08-27 Seth Coe-Sullivan Composition including material, methods of depositing material, articles including same and systems for depositing material
WO2007117672A3 (en) * 2006-04-07 2008-10-23 Qd Vision Inc Methods of depositing nanomaterial & methods of making a device
US20090181478A1 (en) * 2006-04-07 2009-07-16 Marshall Cox Methods of depositing nanomaterial & methods of making a device
US8906804B2 (en) 2006-04-07 2014-12-09 Qd Vision, Inc. Composition including material, methods of depositing material, articles including same and systems for depositing materials
US20090215209A1 (en) * 2006-04-14 2009-08-27 Anc Maria J Methods of depositing material, methods of making a device, and systems and articles for use in depositing material
WO2007120877A2 (en) * 2006-04-14 2007-10-25 Qd Vision, Inc. Transfer surface for manufacturing a light emitting device
WO2007120877A3 (en) * 2006-04-14 2008-11-27 Qd Vision Inc Transfer surface for manufacturing a light emitting device
US8618561B2 (en) 2006-06-24 2013-12-31 Qd Vision, Inc. Methods for depositing nanomaterial, methods for fabricating a device, and methods for fabricating an array of devices
US20090283742A1 (en) * 2006-06-24 2009-11-19 Seth Coe-Sullivan Methods and articles including nanomaterial
US9096425B2 (en) 2006-06-24 2015-08-04 Qd Vision, Inc. Methods for depositing nanomaterial, methods for fabricating a device, methods for fabricating an array of devices and compositions
US9120149B2 (en) 2006-06-24 2015-09-01 Qd Vision, Inc. Methods and articles including nanomaterial
US20090286338A1 (en) * 2006-06-24 2009-11-19 Seth Coe-Sullivan Methods for depositing nanomaterial, methods for fabricating a device, methods for fabricating an array of devices and compositions
US20080032039A1 (en) * 2006-08-07 2008-02-07 Toppan Printing Co., Ltd. Method of manufacturing organic electroluminescence device
US20090283743A1 (en) * 2006-09-12 2009-11-19 Seth Coe-Sullivan Composite including nanoparticles, methods, and products including a composite
US9349975B2 (en) 2006-09-12 2016-05-24 Qd Vision, Inc. Composite including nanoparticles, methods, and products including a composite
US20080173667A1 (en) * 2007-01-19 2008-07-24 Palo Alto Research Center Incorporated Dispensing of liquid with arrays of tubular quill structures
US8876272B2 (en) 2007-06-25 2014-11-04 Qd Vision, Inc. Compositions and methods including depositing nanomaterial
US20100265307A1 (en) * 2007-06-25 2010-10-21 Linton John R Compositions and methods including depositing nanomaterial
US20090084279A1 (en) * 2007-09-28 2009-04-02 Toppan Printing Co., Ltd. Relief printing plate and printed matter
JP2012204661A (en) * 2011-03-25 2012-10-22 Toppan Printing Co Ltd Thin film transistor device and manufacturing method of the same
US20160307517A1 (en) * 2012-05-31 2016-10-20 Samsung Display Co., Ltd. Display panel
US9678385B2 (en) * 2015-04-29 2017-06-13 Samsung Display Co., Ltd. Apparatus for manufacturing alignment layer, and method of manufacturing liquid crystal display device by using the same
US20160320645A1 (en) * 2015-04-29 2016-11-03 Samsung Display Co., Ltd. Apparatus for manufacturing alignment layer, and method of manufacturing liquid crystal display device by using the same
CN104882569A (en) * 2015-06-24 2015-09-02 京东方科技集团股份有限公司 OLED display element, preparing method thereof, display panel and display device

Also Published As

Publication number Publication date
US7963757B2 (en) 2011-06-21
KR100649722B1 (en) 2006-11-24
KR20010097319A (en) 2001-11-08
US20070181059A1 (en) 2007-08-09

Similar Documents

Publication Publication Date Title
JP4121514B2 (en) The organic light emitting device, and a display device including the same
US6828724B2 (en) Light-emitting devices
KR100460210B1 (en) Dual Panel Type Organic Electroluminescent Device and Method for Fabricating the same
US6372532B2 (en) Method of manufacturing a patterned light emitting diode devices
US7012280B2 (en) Organic electroluminescence display device fabricating method of the same
US6628067B2 (en) Organic electroluminescent white light source and method for manufacturing the same
KR100689316B1 (en) Active matrix type organic light emitting diode device and method for fabricating the same
KR100507963B1 (en) Color filter and electro-optical device
EP1018718B1 (en) Display
US20050072359A1 (en) Mask frame assembly for depositing a thin layer of an organic electroluminescent device and method for depositing a thin layer using the same
US7683537B2 (en) Organic EL device and display
US6624570B1 (en) Electroluminescent display device and method for its fabrication
US7696681B2 (en) Stacked organic electroluminescent units for white light emission provided with RGB color conversion portions
US7442258B2 (en) Organic electroluminescent device for fabricating shadow mask
US7173371B2 (en) Transmissive-type organic electroluminescent display device and fabricating method of the same
US6806504B2 (en) Active matrix organic electroluminescent display device and method of fabricating the same
JP4440523B2 (en) The organic el display device and a manufacturing method of a color filter by the inkjet method, manufacturing apparatus
JP4812627B2 (en) The organic electroluminescent panel and a manufacturing method thereof, and a color filter substrate and a manufacturing method thereof
US7365367B2 (en) Organic electroluminescent device having sloped banks and coating fabrication technique
CN100353548C (en) Organic electroluminescent device and method of manufacturing thereof
US7368145B2 (en) Method and apparatus for manufacturing organic EL display and color filter by ink jet method
US7786669B2 (en) Organic electro-luminescence display device and method for fabricating the same
GB2391686A (en) Electroluminescent display
GB2437110A (en) Optoelectronic display and method of manufacturing the same
JP2000284727A (en) Display device

Legal Events

Date Code Title Description
AS Assignment

Owner name: LG.PHILIPS LCD CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, JAE YOON;BAE, SUNG JOON;REEL/FRAME:012067/0324

Effective date: 20010713

AS Assignment

Owner name: LG DISPLAY CO., LTD., KOREA, REPUBLIC OF

Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;REEL/FRAME:020985/0675

Effective date: 20080304

Owner name: LG DISPLAY CO., LTD.,KOREA, REPUBLIC OF

Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;REEL/FRAME:020985/0675

Effective date: 20080304

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION