Source: http://www.google.com/patents/US7032990?dq=5,687,325
Timestamp: 2017-09-22 01:14:49
Document Index: 117413318

Matched Legal Cases: ['art 72', 'arts 72', 'arts 72', 'art 81', 'art 78', 'art 602', 'art 602']

Patent US7032990 - Liquid droplet ejection apparatus, method of manufacturing electrooptic ... - Google Patents
A liquid droplet ejection apparatus in which a function liquid droplet is selectively ejected toward a workpiece while carrying out a relative movement between a function liquid droplet ejection head and the workpiece is made up of: a plurality of function liquid droplet ejection heads; a carriage for...http://www.google.com/patents/US7032990?utm_source=gb-gplus-sharePatent US7032990 - Liquid droplet ejection apparatus, method of manufacturing electrooptic device, electrooptic device, and electronic device
Publication number US7032990 B2
Application number US 10/631,484
Also published as CN1221389C, CN1475345A, US20040075713
Publication number 10631484, 631484, US 7032990 B2, US 7032990B2, US-B2-7032990, US7032990 B2, US7032990B2
Inventors Yutaka Takano, Shinichi Nakamura, Hidenori Usuda, Yoshiaki Yamada
Patent Citations (19), Non-Patent Citations (2), Referenced by (3), Classifications (22), Legal Events (4)
US 7032990 B2
a plurality of function liquid droplet ejection heads;
a carriage for mounting thereon said plurality of function liquid droplet ejection heads;
a head stocker for stocking said plurality of function liquid droplet ejection heads;
a head transfer mechanism for transferring each of said plurality of function liquid droplet ejection heads between said carriage and said head stocker;
a moving mechanism for performing a relative movement between said carriage having mounted thereon said plurality of function liquid droplet ejection heads and said workpiece;
function liquid supply means for supplying said function liquid into said plurality of function liquid droplet ejection heads; and
control means for independently controlling said plurality of function liquid droplet ejection heads.
2. The apparatus according to claim 1, wherein said plurality of function liquid ejection heads include plural kinds of function liquid droplet ejection heads which are filled with different function liquids and/or which are different in specification thereof.
As shown in FIGS. 6 and 7, the head stocker 12 is disposed to face the supporting column 29 on the left side, and is made up of: a stocking table 71 which forms a head mounting part 72 on which is set in position the function liquid droplet ejection head 10; a head maintenance mechanism 73 which is disposed on the lower side of the stocking table 71; and a horizontal moving mechanism 74 which moves the stocking table 71 in a horizontal posture. In FIGS. 1 and 6, only one horizontal moving mechanism 74 is illustrated for convenience of explanation. Actually, one horizontal moving mechanism 74 may be disposed on both right and left sides of the stocking table 71 so as to secure horizontal accuracy and stability. The head maintenance mechanism 73 is made up of: a cap unit 75 which has a dual function as a flushing unit and as a suction unit; and a wiping unit 76 which wipes the nozzle surface 51 a.
The stocking table 71 has substantially the same arrangement as the above-described sub-carriage 9. What is different therefrom is that there are provided three head mounting parts 72 to serve as the stocking part which is disposed so as to extend on a side (on the left side). Each of the head mounting parts 72 is made up of a shallow-grooved part 81 and a through-going opening 82, and has a pair of positioning holes 83, 83 and a detector 84. A plate supporting part 78 has formed therein a pair of guide holes 86, 86 through which a pair of guide rods 92, 92 are inserted, as well as a screwed hole 87 through which a male screw 93 (ball screw) is engaged in a screwed manner.
The crossing portions between the first electrode 523 and the second electrode 526 are the pixels. It is thus so arranged that the color layers 508R, 508G, 508R of the color filter 500 are positioned in these portions which form the pixels.
Between the circuit element part 602 and the substrate 601, there is formed a base protection film 606 which is made of a silicon oxide film. On top of this base protection film 606 (on the side of the light-emitting element 603), there is formed an island shaped semiconductor film 607 which is made of polycrystalline silicon. In the left and right regions of this semiconductor film 607, there are respectively formed a source region 607 a and a drain region 607 b by high-concentration anion implantation. The central portion which is free from anion implantation becomes a channel region 607 c.
In the circuit element part 602, there is formed a transparent gate insulation film 608 which covers the base protection film 606 and the semiconductor film 607. In that position on this gate insulation film 608 which corresponds to the channel region 607 c of the semiconductor film 607, there is formed a gate electrode 609 which is made up of Al, Mo, Ta, Ti, W, or the like. On top of this gate electrode 609 and the gate insulation film 608, there are formed a transparent first interlayer dielectric film 611 a and a second interlayer dielectric film 611 b. Through the first and second interlayer dielectric films 611 a, 611 b, there are formed contact holes 612 a, 612 b which are in communication with the source region 607 a and the drain region 607 b, respectively, of the semiconductor film 607.
On top of the second interlayer dielectric film 611 b, there is formed, by patterning, a transparent pixel electrode 613 which is made of ITO, or the like. This pixel electrode 613 is connected to the source region 607 a through the contact hole 612 a.
On top of the first interlayer dielectric film 611 a, there is formed an electric source wiring 614, which is connected to the drain region 607 b through the contact hole 612 b.
On the other hand, since the hole injection/transport layer 617 a is low in affinity to the non-polar solvent, it will be impossible to closely adhere the hole injection/transport layer 617 a to the light-emitting layer 617 b or to uniformly coat the light-emitting layer 617 b even if the second composition of matter containing therein the non-polar solvent is ejected onto the hole injection/transport layer 617 a.
As a solution, in order to enhance the affinity of the surface of the hole injection/transport layer 617 a to the non-polar solvent and to the light-emitting layer forming material, it is preferable to perform the surface treatment (treatment to improve the quality of the surface) before forming the light-emitting layer. This surface treatment is performed by coating the hole injection/transport layer 617 a with a solvent which is the same as, or similar to, the non-polar solvent of the second composition of matter to be used in forming the light-emitting layer, and then drying it.
JP2001150653A Title not available
JP2001180010A Title not available
JP2001239203A Title not available
JPH06209416A Title not available
JPH07186399A Title not available
JPH11342630A Title not available
US8567917 Nov 30, 2009 Oct 29, 2013 Seiko Epson Corporation Method of stirring liquid in droplet discharge head and droplet discharge apparatus
International Classification B41J2/045, B05C5/00, G02F1/1335, H05B33/10, B05D1/26, G02B5/20, B41J23/00, B41J2/235
Cooperative Classification B41J25/3086, B41J2/16535, B41J25/308, B41J2/04588, B41J2/04596, B41J2/04581, B41J2202/09
European Classification B41J2/045D62, B41J2/165C2, B41J2/045D67, B41J25/308, B41J2/045D58, B41J25/308H
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKANO, YUTAKA;NAKAMURA, SHINICHI;USUDA, HIDENORI;AND OTHERS;REEL/FRAME:014780/0261;SIGNING DATES FROM 20031111 TO 20031120