Light emitting device and a method of manufacturing the same
First Claim
Patent Images
1. A light emitting device comprising:
- at least one thin film transistor on an insulating surface;
an anode electrically connected to said thin film transistor;
a cathode provided opposite said anode; and
a luminous material provided between said anode and said cathode, wherein said anode is surrounded by a bank, and a portion of said bank contains a metal film.
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Accused Products
Abstract
To provide a light emitting device having a highly definite pixel portion. An anode (102) and a bank (104) orthogonal to the anode (102) are formed on an insulator (101). A portion of the bank (104) (controlling bank 104b) is made of a metal film. By applying a voltage thereto, an electric field is formed, and a track of an EL material that is charged with an electric charge can be controlled. Thus, it becomes possible to control a film deposition position of an EL layer with precision by utilizing the above method.
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Citations
28 Claims
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1. A light emitting device comprising:
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at least one thin film transistor on an insulating surface;
an anode electrically connected to said thin film transistor;
a cathode provided opposite said anode; and
a luminous material provided between said anode and said cathode, wherein said anode is surrounded by a bank, and a portion of said bank contains a metal film. - View Dependent Claims (2, 3, 4)
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5. A light emitting device comprising:
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at least one thin film transistor on an insulating surface;
an anode electrically connected to said thin film transistor;
a cathode provided opposite said anode; and
a luminous material provided between said anode and said cathode, wherein said anode is surrounded by a bank, and said bank is formed of a lamination of an insulating film and a metal film. - View Dependent Claims (6, 7, 8)
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9. A light emitting device comprising:
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at least one thin film transistor on an insulating surface;
a cathode electrically connected to said thin film transistor;
an anode provided opposite said cathode; and
a luminous material provided between said cathode and said anode, wherein said cathode is surrounded by a bank, and a portion of said bank contains a metal film. - View Dependent Claims (10, 11, 12)
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13. A light emitting device comprising:
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at least one thin film transistor on an insulating surface;
a cathode electrically connected to said thin film transistor;
an anode provided opposite said cathode; and
a luminous material provided between said cathode and said anode, wherein said cathode is surrounded by a bank, and said bank is formed of a lamination of an insulating film and a metal film. - View Dependent Claims (14, 15, 16)
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17. A method of manufacturing a light emitting device, comprising the steps of:
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forming at least one thin film transistor on an insulating surface;
forming a pixel electrode electrically connected to said thin film transistor;
forming a bank so as to surround said pixel electrode; and
forming an EL material over said pixel electrode while charging a portion of said bank with a negative or positive charge. - View Dependent Claims (18, 19)
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20. A method of manufacturing a light emitting device, comprising the steps of:
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forming at least one thin film transistor on an insulating surface;
forming a pixel electrode electrically connected to said thin film transistor;
forming a bank so as to surround said pixel electrode; and
while charging a portion of said bank with a negative or positive charge, forming an EL material charged to have a same polarity as said bank over said pixel electrode - View Dependent Claims (21, 22)
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23. A method of manufacturing a light emitting device, comprising the steps of:
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forming at least one thin film transistor on an insulating surface;
forming a pixel electrode electrically connected to said thin film transistor;
forming a bank composed of a lamination of an insulating film and a metal film so as to surround said pixel electrode; and
forming an EL material over said pixel electrode while charging said metal film with a negative or positive charge. - View Dependent Claims (24, 25)
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26. A method of manufacturing a light emitting device, comprising the steps of:
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forming at least one thin film transistor on an insulating surface;
forming a pixel electrode electrically connected to said thin film transistor;
forming a bank composed of a lamination of an insulating film and a metal film so as to surround said pixel electrode; and
while charging said metal film with a negative or positive charge, forming an EL material charged to have a same polarity as said metal film over said pixel electrode. - View Dependent Claims (27, 28)
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Specification