US2006102910A1PendingUtilityA1

Method for manufacturing light emitting device

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Assignee: SEMICONDUCTOR ENERGY LABPriority: Oct 29, 2004Filed: Oct 26, 2005Published: May 18, 2006
Est. expiryOct 29, 2024(expired)· nominal 20-yr term from priority
Inventors:Shunpei YamazakiMasahiko HayakawaKoichiro KamataHiroyuki TomatsuHisao IkedaJunichiro Sakata
H10K 59/876H05B 33/10H10K 71/831H10K 50/852G09G 2320/029G09G 3/007G09G 2320/043G09G 2300/0842G09G 2330/08Y02B10/10G09G 3/2022G09G 2310/0251G09G 2300/0819G09G 2310/027G09G 3/3258G09G 2310/0256
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Claims

Abstract

An object of the present invention is to provide a new light emitting element with little initial deterioration, and a display device in which initial deterioration is reduced and variation in deterioration over time is reduced by a new method for driving a display device having the light emitting element. One feature of the invention is that a display device comprising a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode is subjected to aging drive.

Claims

exact text as granted — not AI-modified
1 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode;    a transistor connected to the light emitting element; and    a monitor light emitting element connected to the light emitting element,    wherein drive is performed by applying forward voltage to the light emitting element in aging treatment of a panel having the light emitting element.    
   
   
       2 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode;    a transistor connected to the light emitting element; and    a monitor light emitting element connected to the light emitting element,    wherein drive is performed by applying forward voltage and reverse voltage to the light emitting element in aging treatment of a panel having the light emitting element.    
   
   
       3 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode; and    a transistor connected to the light emitting element,    wherein drive is performed by applying forward voltage to the light emitting element in aging treatment of a panel having the light emitting element, and    an image is displayed with the light emitting element and a location of the image is changed at a predetermined interval.    
   
   
       4 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode; and    a transistor connected to the light emitting element,    wherein drive is performed by applying forward voltage and reverse voltage to the light emitting element in aging treatment of a panel having the light emitting element, and    an image is displayed with the light emitting element and a location of the image is changed at a predetermined interval.    
   
   
       5 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode; and    a transistor connected to the light emitting element,    wherein drive is performed by applying forward voltage to the light emitting element in aging treatment of a panel having the light emitting element,    an image is displayed with the light emitting element, and    a pixel portion is formed so that the number of pixels is redundant with respect to the number of display pixels to change a location of the image at a predetermined interval.    
   
   
       6 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode; and    a transistor connected to the light emitting element,    wherein drive is performed by applying forward voltage and reverse voltage to the light emitting element in aging treatment of a panel having the light emitting element,    an image is displayed with the light emitting element, and    a pixel portion is formed so that the number of pixels is redundant with respect to the number of display pixels to change a location of the image at a predetermined interval.    
   
   
       7 . A light emitting device according to  claim 1 , further comprising a monitor light emitting element connected to the light emitting element.  
   
   
       8 . A light emitting device according to  claim 4 , further comprising a monitor light emitting element connected to the light emitting element.  
   
   
       9 . A light emitting device according to  claim 5 , further comprising a monitor light emitting element connected to the light emitting element.  
   
   
       10 . A light emitting device according to  claim 6 , further comprising a monitor light emitting element connected to the light emitting element.  
   
   
       11 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode;    a transistor connected to the light emitting element; and    a monitor light emitting element connected to the light emitting element,    wherein drive is performed by applying forward voltage to the light emitting element in aging treatment of a panel having the light emitting element,    an image is displayed with the light emitting element, and    a location of the image is changed at a predetermined interval.    
   
   
       12 . A light emitting device comprising: 
 a light emitting element including a first electrode, a second electrode opposed to the first electrode, and a mixed layer of metal oxide and an organic compound provided between the first electrode and the second electrode;    a transistor connected to the light emitting element; and    a monitor light emitting element connected to the light emitting element,    wherein drive is performed by applying forward voltage and reverse voltage to the light emitting element in aging treatment of a panel having the light emitting element,    an image is displayed with the light emitting element, and    a location of the image is changed at a predetermined interval.    
   
   
       13 . A light emitting device according to  claim 1 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       14 . A light emitting device according to  claim 2 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       15 . A light emitting device according to  claim 3 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       16 . A light emitting device according to  claim 4 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       17 . A light emitting device according to  claim 5 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       18 . A light emitting device according to  claim 6 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       19 . A light emitting device according to  claim 11 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       20 . A light emitting device according to  claim 12 , wherein a short circuit portion detected by the aging treatment is irradiated with a laser.  
   
   
       21 . A light emitting device according to  claim 1 , wherein the metal oxide is molybdenum oxide.  
   
   
       22 . A light emitting device according to  claim 2 , wherein the metal oxide is molybdenum oxide.  
   
   
       23 . A light emitting device according to  claim 3 , wherein the metal oxide is molybdenum oxide.  
   
   
       24 . A light emitting device according to  claim 4 , wherein the metal oxide is molybdenum oxide.  
   
   
       25 . A light emitting device according to  claim 5 , wherein the metal oxide is molybdenum oxide.  
   
   
       26 . A light emitting device according to  claim 6 , wherein the metal oxide is molybdenum oxide.  
   
   
       27 . A light emitting device according to  claim 11 , wherein the metal oxide is molybdenum oxide.  
   
   
       28 . A light emitting device according to  claim 12 , wherein the metal oxide is molybdenum oxide.  
   
   
       29 . A light emitting device according to  claim 1 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       30 . A light emitting device according to  claim 2 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       31 . A light emitting device according to  claim 3 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       32 . A light emitting device according to  claim 4 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       33 . A light emitting device according to  claim 5 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       34 . A light emitting device according to  claim 6 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       35 . A light emitting device according to  claim 11 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       36 . A light emitting device according to  claim 12 , wherein the metal oxide is formed in contact with the first electrode.  
   
   
       37 . A light emitting device according to  claim 1 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       38 . A light emitting device according to  claim 2 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       39 . A light emitting device according to  claim 3 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       40 . A light emitting device according to  claim 4 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       41 . A light emitting device according to  claim 5 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       42 . A light emitting device according to  claim 6 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       43 . A light emitting device according to  claim 11 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       44 . A light emitting device according to  claim 12 , wherein the first electrode or the second electrode is formed using ITO.  
   
   
       45 . A light emitting device according to  claim 1 , wherein the light emitting element and the monitor light emitting element are formed in the same step.  
   
   
       46 . A light emitting device according to  claim 2 , wherein the light emitting element and the monitor light emitting element are formed in the same step.  
   
   
       47 . A light emitting device according to  claim 11 , wherein the light emitting element and the monitor light emitting element are formed in the same step.  
   
   
       48 . A light emitting device according to  claim 12 , wherein the light emitting element and the monitor light emitting element are formed in the same step.

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