TW488187B - Electro luminescence display device - Google Patents
Electro luminescence display device Download PDFInfo
- Publication number
- TW488187B TW488187B TW089104464A TW89104464A TW488187B TW 488187 B TW488187 B TW 488187B TW 089104464 A TW089104464 A TW 089104464A TW 89104464 A TW89104464 A TW 89104464A TW 488187 B TW488187 B TW 488187B
- Authority
- TW
- Taiwan
- Prior art keywords
- cathode
- anode
- voltage
- pulse signal
- display device
- Prior art date
Links
- 238000005401 electroluminescence Methods 0.000 title abstract 6
- 230000005684 electric field Effects 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 32
- 239000010408 film Substances 0.000 description 17
- 101100268335 Solanum lycopersicum TFT9 gene Proteins 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 230000002079 cooperative effect Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 101100489577 Solanum lycopersicum TFT10 gene Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007983 Tris buffer Substances 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- -1 4 -Dimethylaminostyryl Chemical group 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- JHYLKGDXMUDNEO-UHFFFAOYSA-N [Mg].[In] Chemical compound [Mg].[In] JHYLKGDXMUDNEO-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- LCAKAXJAQMMVTQ-UHFFFAOYSA-N 1-(2,2-diphenylethenyl)-2-phenylbenzene Chemical group C=1C=CC=C(C=2C=CC=CC=2)C=1C=C(C=1C=CC=CC=1)C1=CC=CC=C1 LCAKAXJAQMMVTQ-UHFFFAOYSA-N 0.000 description 1
- YLYPIBBGWLKELC-RMKNXTFCSA-N 2-[2-[(e)-2-[4-(dimethylamino)phenyl]ethenyl]-6-methylpyran-4-ylidene]propanedinitrile Chemical compound C1=CC(N(C)C)=CC=C1\C=C\C1=CC(=C(C#N)C#N)C=C(C)O1 YLYPIBBGWLKELC-RMKNXTFCSA-N 0.000 description 1
- POXIZPBFFUKMEQ-UHFFFAOYSA-N 2-cyanoethenylideneazanide Chemical group [N-]=C=[C+]C#N POXIZPBFFUKMEQ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101100268330 Solanum lycopersicum TFT7 gene Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- ZXZKYYHTWHJHFT-UHFFFAOYSA-N quinoline-2,8-diol Chemical compound C1=CC(=O)NC2=C1C=CC=C2O ZXZKYYHTWHJHFT-UHFFFAOYSA-N 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
Description
經濟部智慧財產局員工消費合作社印製 488187 A7 — ___ B7__ 五、發明說明（i ) [發明所屬之技術領域] 本發明係關於一種在陽極與陰極之間，至少具有電洞 輪送層及發光層，並對之供給預定之偏壓而實行發光之電 場發光顯示裝置者。 、 [以往之技術] 有機電場發光顯示（以下簡稱為EL)元件係因其本身 有發光的能力，不需要在如液晶顯示裝置中必備之背照 光，最適合於薄型化之同時，視野角也無限制而被視為下 一代之顯示裝置而被殷切希望其實用化。 如第7圖所示，該有機EL元件係在由銦錫氧化物ITO (Indium Tin Oxide)等之透明電極所成之陽極51與鎂銦 (Mgln)合金所成之陰極55之間，依次積層由4,4’，4”-叁（3-甲基苯基苯綦胺基)三苯基胺MTDATA ( 4,4，，4，，-tris (3-methylphenylphenylamino) triphenylamine)所成之電洞 (hole)輸送層52，由N，N’-二苯基-N，N，-二（3-甲基苯基）-1，1’-聯苯基-4,4’-二胺丁？0(队]^’-(^?1^1^1-队尺’-(1]1(3-11^1:11；/101^11>4)-1，1’_1^01^11}^1-4,4’-(11&11111^)及11111)1^1^所成 之發光層53，叁（8-羥基喹啉酚）鋁Alq3(Tris(8-hydroxyquinolinato)aliiminiim)所成之電子輸送層 54 而形 成之。然後，從陽極5 1所注入之電洞與陰極55注入之電 子在發光層53之内部再結合之結果發光，如圖中用箭號所 示，光為從透明的陽極側向外部放射之。 驅動該有機EL之顯示裝置有單純矩陣構造之被動 型，及使用TFT之主動型之兩種；在主動型中，以往是使 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) ~ 311197 11 ^ ο --------^---------Αν— (請先閱讀背面之注意事項再填寫本頁) 488187 經濟部智慧財產局員工消費合作社印製 A7 _____ B7_ 五、發明說明（2 ) 用如第6圖中所示之驅動電路。 在第6圖中，70為有機el元件，一個像素份之驅動 電路係由TFT71，電容器72，以及TFT74所構成；TFT71 係將發自顯示訊號線75之顯示訊號DATA施加於汲極，將 發自選擇訊號線76之選擇訊號sc an施加於閘極，藉選 擇訊號SCAN而接通及斷開（qn.OFF)之開關用之薄膜電晶 體；電容器72係連接於TFT71之源極與預定之直流電壓 Vsc間，由在TFT7 1為on時所供給之顯示訊號所充電， 而當TFT71在OFF時則保持充電電壓vg ; TFT74係具有 連接於供給驅動電源電壓Vdd之電源線77之没極，以及 具有連接於有機EL元件70之陽極之源極之同時，對閘極 供給來自電谷器72之保持電麼VG而以電流驅動有機el 元件70之驅動之用。並且，通常，有機EL元件之陰極係 連接於接地（GND)電位，驅動電源電壓Vdd係例如1〇v之 正電位。又，電壓Vsc為例如與vdd同一電位或接地（GND) 電位。 如第7圖所示，該驅動用之tFT74為，在玻璃基板6〇 上依次積層閘電極61，閘極絕緣膜62，汲極區域63，具 有溝道區域及源極區域64之多晶矽薄膜65，層間絕緣膜 66，平坦化膜67而形成；汲極區域63係連接於構成電源 線77(參考第6圖）之汲極電極68，而源極區域64係連接 於有機EL元件之陽極之透明電極51。 [發明所欲解決之問題] (請先閱讀背面之注意事項再填寫本頁) --------訂---------AWI' EL元件係如上述因電流驅動而發光，驅動時電流為從Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 488187 A7 — ___ B7__ V. Description of the Invention (i) [Technical Field to which the Invention belongs] The present invention relates to a type of electrode with at least a hole-feeding layer and light emission between the anode and the cathode And apply a predetermined bias voltage to it to implement an electric field light emitting display device that emits light. [Previous technology] Organic light-emitting display (hereinafter referred to as EL) elements have the ability to emit light, and do not need the backlight necessary for liquid crystal display devices. It is most suitable for thinning, and the viewing angle is also It is regarded as a next-generation display device without limitation, and its practical use is eagerly expected. As shown in FIG. 7, the organic EL element is sequentially stacked between an anode 51 made of a transparent electrode such as ITO (Indium Tin Oxide) and a cathode 55 made of a magnesium indium (Mgln) alloy. Holes formed by 4,4 ', 4 ”-tris (3-methylphenylphenylamino) triphenylamine MTDATA (4,4,4 ,,-tris (3-methylphenylphenylamino) triphenylamine) (hole) The transport layer 52 is made of N, N'-diphenyl-N, N, -bis (3-methylphenyl) -1,1'-biphenyl-4,4'-diamine. 0 (team) ^ '-(^? 1 ^ 1 ^ 1-team ruler'-(1) 1 (3-11 ^ 1: 11; / 101 ^ 11 > 4) -1,1'_1 ^ 01 ^ 11 } ^ 1-4,4 '-(11 & 11111 ^) and 11111) 1 ^ 1 ^ light-emitting layer 53, tris (8-hydroxyquinolinato) aluminum The formed electron transport layer 54 is formed. Then, the holes injected from the anode 51 and the electrons injected from the cathode 55 are combined inside the light-emitting layer 53 to emit light, as shown by arrows in the figure. The light is It is radiated from the transparent anode side to the outside. The display device driving the organic EL has two types: a passive type with a simple matrix structure and an active type using a TFT. In the moving type, the paper size was previously adapted to the Chinese National Standard (CNS) A4 (210 X 297 mm) ~ 311197 11 ^ ο -------- ^ --------- Αν— (Please read the precautions on the back before filling this page) 488187 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _____ B7_ V. Description of the invention (2) Use the driving circuit as shown in Figure 6. In the figure, 70 is an organic el element, and the driving circuit for one pixel is composed of TFT71, capacitor 72, and TFT74; TFT71 applies the display signal DATA sent from the display signal line 75 to the drain, which will be sent from the selection The selection signal sc an of the signal line 76 is applied to the gate, and a thin film transistor for switching on and off (qn.OFF) by the selection signal SCAN; the capacitor 72 is connected to the source of the TFT 71 and a predetermined DC voltage Vsc is charged by the display signal supplied when TFT7 1 is on, and the charging voltage vg is maintained when TFT71 is OFF; TFT74 has a pole connected to a power supply line 77 that supplies the drive power voltage Vdd, and has While being connected to the source of the anode of the organic EL element 70, The holding device VG from the valley device 72 is supplied for driving the organic el element 70 with a current. The cathode of the organic EL element is generally connected to a ground (GND) potential, and the drive power source voltage Vdd is, for example, a positive potential of 10V. The voltage Vsc is, for example, the same potential as vdd or a ground (GND) potential. As shown in FIG. 7, the driving tFT74 is a gate electrode 61, a gate insulating film 62, a drain region 63, a polycrystalline silicon film 65 having a channel region and a source region 64, which are sequentially laminated on a glass substrate 60. The interlayer insulating film 66 and the planarizing film 67 are formed; the drain region 63 is connected to the drain electrode 68 constituting the power line 77 (refer to FIG. 6), and the source region 64 is connected to the anode of the organic EL element. Transparent electrode 51. [Problems to be solved by the invention] (Please read the precautions on the back before filling in this page) -------- Order --------- AWI 'EL elements are driven by current as described above Light emission, current is driven from
丄<3 / 丄<3 /丄 < 3 / 丄 < 3 /
五、發明說明（3 ) @極向陰極流動，非驅動時電流不會流動。換言之，電流 吊/、向同一方向流動，因而重複實行驅動時，在電洞輸5. Description of the invention (3) @pole flows to the cathode, and the current does not flow when it is not driven. In other words, the current hoists and flows in the same direction, so when the drive is repeatedly performed,
^層與發光層之間’或在電子輸送層與發光層之間等之EL 疋件内有空間電荷積留，而成為縮短EL元件壽命之原因。 2其疋在疋件内當中，電洞輸送層與發光層之間係被認為 1間電何取谷易積留的地方。此問題不論是驅動方式為被 動型或主動型均相同。 於疋，本發明之目的，在於以儘量能夠延長其壽命的 狀態來電流驅動EL元件者。 [解決問題之手段] 本發明之特徵為，在陽極與陰極之間，至少具有電洞 輸送層及發光層，供給預定之偏壓實行發光之電場發光顯 不裝置中，於非顯示期間，在前述陽極與陰極之間施加反 向偏壓者。 再且本發明之特徵為具備有：輸入在非顯示期間所 發生的脈衝訊號，當該脈衝訊號為第一位準時，把前述預 定之偏壓供給於前述陽極與陰極之間用之第一電位施加於 前述陰極或陽極’當前述脈衝訊號為第二位準時，把前述 反向偏麼供給於前述陽極與陰極之間用之第二電位施加於 前述陰極或陽極之選擇電路者。 又’本發明之特徵為前述脈衝訊號係在非顯示期間發 生之遮沒脈衝（blanking pulse )訊號或籍位服衝（山师 pulse)訊號者。 [實施發明之形態] 本纸張尺度適用47國國家標準（CNS)A4規格（210 X 297公爱）Between the ^ layer and the light-emitting layer 'or between the electron transport layer and the light-emitting layer, space charges accumulate in the EL device, which is a cause of shortening the life of the EL element. 2 Among the files, the hole transporting layer and the light-emitting layer are considered to be a place where electricity can easily accumulate. This problem is the same whether the driving method is passive or active. Therefore, an object of the present invention is to drive an EL element in an electric current in a state that can prolong its life as much as possible. [Means for Solving the Problem] The present invention is characterized in that, between the anode and the cathode, at least a hole transporting layer and a light emitting layer are provided, and an electric field light emitting display device that supplies a predetermined bias voltage to perform light emission is provided during non-display period. A reverse bias is applied between the foregoing anode and cathode. Furthermore, the present invention is characterized by: inputting a pulse signal occurring during a non-display period, and when the pulse signal is at a first level, supplying the predetermined bias voltage to a first potential for use between the anode and the cathode When applied to the cathode or anode, when the pulse signal is at the second level, the second potential for supplying the reverse bias between the anode and the cathode is applied to the selection circuit of the cathode or anode. Another feature of the present invention is that the aforementioned pulse signal is a blanking pulse signal or a pulse signal of a mountain teacher that is generated during a non-display period. [Forms of Implementing the Invention] The paper size is applicable to 47 countries' national standards (CNS) A4 specifications (210 X 297 public love)
裝--------訂---- (請先閱讀背面之注意事項再填寫本頁) 1 H . ·! 311197 經濟部智慧財產局員工消費合作社印製 488187 A7 B7 五、發明說明（4 ) 第3圖係顯示本發明之EL顯示裝置所使用之顯示 板面之電路構成，基本上與以往的裝置同樣的構成。 即，該構成係具有複數個像素之主動型，驅動有機EL 元件20之一個像素份之驅動電路係由： 將發自顯示訊號線25之顯示訊號DATA施加於汲極， 將發自選擇訊號線26之選擇訊號SCAN施加於閘極，而 藉選擇訊號SCAN而接通及斷開（〇N/〇FF)之開關用 TFT71 ; 連接於TFT21之源極與預定之直流電壓Vsc間，在 TFT21為on時所供給之顯示訊號所充電，TFT21在〇FF 時則保持充電電壓VG之電容器22 ;以及 具有連接於及極供給驅動電源電壓Vdd之電源線2 7 之汲極，連接於有機EL元件20之陽極201之源極之同時， 對閘極供給來自電容器22之保持電壓VG以電流驅動有機 EL元件20之驅動用TFT24等所構成者。 並且，如同以往之裝置，驅動電源電壓Vdd係例如1〇v 之正電位，電壓Vsc為例如與Vdd同一電位或接地（gnd) 電位，但在本實施形態中，有機EL元件2〇之陰極2〇2係 不同於以往裝置，並非接地（GND)電位等之固定電位，而 是連接於供給可變電位之端子T者。 第4圖係表示複數個像素，在第3圖所示el元件及 獎動用TFT24之構造之剖視圖，圖中31係供給顯示訊號 DATA之以銘製成之沒極線，32係供給電源電壓vdd之以 銘製成之電源電壓線，33係供給選擇訊號scan之以路製 本紙張尺度適用中國國家標準（CNS)A4規格（210x 297公釐「 — 111 — I I I I 1 JAW- · I -------. I I I-----AVI (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 488187Packing -------- Order ---- (Please read the precautions on the back before filling out this page) 1 H. ·! 311197 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 488187 A7 B7 V. Description of the invention (4) FIG. 3 shows a circuit configuration of a display panel surface used in the EL display device of the present invention, which is basically the same configuration as a conventional device. That is, the configuration is an active type having a plurality of pixels, and a driving circuit for driving one pixel portion of the organic EL element 20 is composed of: applying the display signal DATA sent from the display signal line 25 to the drain electrode, and sending it from the selection signal line The selection signal SCAN of 26 is applied to the gate electrode, and the TFT71 for switching is turned on and off (0N / 〇FF) by the selection signal SCAN; it is connected between the source of the TFT21 and a predetermined DC voltage Vsc, and the TFT21 is The display signal supplied when on is charged, and the TFT 21 maintains a charging voltage VG of capacitor 22 when it is 0FF; and a drain having a power line 27 connected to and supplying the driving power voltage Vdd is connected to the organic EL element 20 In addition to the source of the anode 201, the gate is supplied with a holding voltage VG from the capacitor 22 to drive a driving TFT 24 of the organic EL element 20 and the like. In addition, like conventional devices, the driving power supply voltage Vdd is, for example, a positive potential of 10V, and the voltage Vsc is, for example, the same potential as Vdd or the ground (gnd) potential. However, in this embodiment, the cathode 2 of the organic EL element 20 〇2 is different from conventional devices, and is not a fixed potential such as a ground (GND) potential, but is connected to a terminal T that supplies a variable potential. FIG. 4 is a cross-sectional view showing a plurality of pixels, and the structure of the el element and the TFT 24 for use in FIG. 3 is shown in FIG. The power supply voltage line made of Ming, 33 is for the selection signal. The paper size is based on the Chinese National Standard (CNS) A4 specification (210x 297 mm "— 111 — IIII 1 JAW- · I ---- ---. II I ----- AVI (Please read the precautions on the back before filling out this page) Printed by the Employee Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 488187
五、發明說明（5 )V. Description of the invention (5)
成之閘極線，36係第3圖之驅動用TFT，而37係以銦錫 氧化物ITO(Indium Tin Oxide)所成之構成像素電極之EL το件2 0之陽極者。 該驅動用TFT36係以下述之方法形成。首先，在透明 的玻璃基板38上形成鉻之閘電極39,而在其上面形成閘 極絕緣膜40。其次，在閘極絕緣膜4〇上形成多晶矽薄膜 41，以層間絕緣膜42覆蓋之後在其上面形成没極線3丨及 電源線32。再者，積層平坦化絕緣膜43，在其上面形成以 銦錫氧化物ITO(Indium Tin Oxide)製成之陽極37。然後， 把多晶梦薄膜41之汲極區域接觸於電源線32，把源極區 域接觸於陽極37。第3圖所示之開關TFT21之構造也與驅 動用TFT36相同，連接於TFT21之電容器22係由夾持閘 極絕緣膜之鉻電極與多晶矽薄膜所構成。 陽極37係在平坦化絕緣膜43上按各像素分離而形 成’在其上面依次積層電洞輸送層44，發光層45，電子輪 送層46，以及陰極47而形成EL元件。然後，從陽極37 所注入之電洞與陰極47注入之電子在發光層45之内部再 結合而產生發光，如圖中以箭號所示，該光為從透明的陽 極側向外部放射。又，發光層45係按各像素分離而形成為 略與陽極37相同之形狀，再者，按RGB使用不同的發先 材料，而從各EL元件發出RGB之各光。 關於電洞輸送層44，電子輸送層46，以及陰極47之 材料’例如使用4,4，，4，，-叁（3-甲基苯基苯基胺基）三苯基胺 MTDATA (4,4’，4’’-tris (3_methylphenylpheny lamino) J . --------^--------- (請先閱讀背面之注音心事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公餐） 5 311197 經濟部智慧財產局員工消費合作社印製 488187 A7 B7 五、發明說明（6 ) triphenylamine )，叁（8_羥基喹啉酚）鋁 Alq3 ( Tris ( 8-hydroxyquinolinato) aluminum)，鎂銦 Mgln 合金；關於 R， G，B之各發光層45則，使用含有4-(二氰基亞甲基）·2甲 基- 6-(4-二甲基胺基苯乙烯基）-4Η-哌味DCM (4-(dicyanomethylene)2methyl-6-(4-dimethylaminostyryl)-4H- pyran)系統作為摻雜劑之Alq，含有奎那酮（quinacrid〇ne) 作為換雜劑之Alq，含有·一本乙稀基伸芳基（distyrylarylene) 系為摻雜劑之1，4·二（2,2-二苯基-乙烯基）聯苯DPVBi(l，4-bis(2,2-diphenyl-vinyl)biphenyl)系統。 EL元件之陽極37係如上述按各像素獨立形成，相對 之，陰極47係如第4圖所示，作成對全像素共通之形態。 從第5圖所示之平面圖會更明白，陰極47係全面連續而形 成’將該陰極材料直接拉長而形成與外部電路連接用之連 接端子T。該連接端子T係連接於設在TAB及FPC等之訊 號基板48背面之以銅等所成之連接端子49，而與外部電 路連接。 其次，茲參考第1圖及第2圖，就藉訊號基板48而連 接之外部電路說明如下。 第1圖係顯示外部電路構成之電路圖，係由顯示控制 器1及選擇電路2所成。顯示控制器1係由：將視頻輸入 訊號予以解瑪而輸出R’G’B之三原色之視頻訊號之解碼 器3，來自解碼器3之視頻訊號予以電流放大之視頻緩衝 器4 ’從視頻輪入訊號分離同步訊號之同步分離電路$ ;根 據分離的同步訊號而分別產生遮沒脈衝BLP(Blanking -------------— I —----•裝--------訂--------·· (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 6 311197 經濟部智慧財產局員工消費合作社印製 488187 A7 B7 五、發明說明（7 )For the gate line, 36 is the driving TFT shown in FIG. 3, and 37 is the anode of EL element of pixel electrode 20 which is made of indium tin oxide ITO (Indium Tin Oxide). The driving TFT 36 is formed by the following method. First, a chromium gate electrode 39 is formed on a transparent glass substrate 38, and a gate insulating film 40 is formed thereon. Next, a polycrystalline silicon thin film 41 is formed on the gate insulating film 40, and then covered with an interlayer insulating film 42, and an electrode line 31 and a power supply line 32 are formed thereon. Further, the planarized insulating film 43 is laminated, and an anode 37 made of indium tin oxide (ITO) is formed on the planarized insulating film 43. Then, the drain region of the polycrystalline dream film 41 is brought into contact with the power supply line 32, and the source region is brought into contact with the anode 37. The structure of the switching TFT 21 shown in Fig. 3 is also the same as that of the driving TFT 36. The capacitor 22 connected to the TFT 21 is composed of a chromium electrode sandwiching a gate insulating film and a polycrystalline silicon film. The anode 37 is formed on the planarization insulating film 43 for each pixel, and the hole transporting layer 44, the light emitting layer 45, the electron rotation layer 46, and the cathode 47 are laminated in this order to form an EL element. Then, the holes injected from the anode 37 and the electrons injected from the cathode 47 are recombined inside the light emitting layer 45 to generate light. As shown by arrows in the figure, the light is emitted from the transparent anode side to the outside. In addition, the light emitting layer 45 is formed to have a shape substantially the same as that of the anode 37 for each pixel. Furthermore, different emitting materials are used for RGB, and each RGB light is emitted from each EL element. As for the material of the hole transporting layer 44, the electron transporting layer 46, and the cathode 47, for example, 4,4,4 ,,-tris (3-methylphenylphenylamino) triphenylamine MTDATA (4, 4 ', 4' '-tris (3_methylphenylpheny lamino) J. -------- ^ --------- (Please read the note on the back of the note before filling out this page) This paper size applies China National Standard (CNS) A4 Specification (210 X 297 Meals) 5 311197 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 488187 A7 B7 V. Description of the Invention (6) triphenylamine, tris (8_hydroxyquinolinol) aluminum Alq3 (Tris (8-hydroxyquinolinato) aluminum), magnesium indium Mgln alloy; for each of the R, G, and B light-emitting layers 45, use 4- (dicyanomethylene) · 2-methyl-6- (4 -Dimethylaminostyryl) -4Η-piperyl DCM (4- (dicyanomethylene) 2methyl-6- (4-dimethylaminostyryl) -4H-pyran)) Alq as dopant, containing quinacrid 〇ne) Alq, which is a doping agent, contains a vinyldistyrylarylene (distyrylarylene) which is a dopant of 1,4 · bis (2,2-diphenyl-vinyl) biphenyl DPVBi (l , 4-bis (2,2-diphenyl-vinyl) biphenyl) system. The anode 37 of the EL element is independently formed for each pixel as described above, while the cathode 47 is formed in a common form for all pixels as shown in FIG. 4. It will be further understood from the plan view shown in FIG. 5 that the cathode 47 is formed in a continuous and comprehensive manner, and the cathode material is directly elongated to form a connection terminal T for connection to an external circuit. The connection terminal T is connected to a connection terminal 49 made of copper or the like provided on the back of a signal substrate 48 such as TAB or FPC, and is connected to an external circuit. Next, referring to Fig. 1 and Fig. 2, the external circuit connected by the signal substrate 48 will be described below. Fig. 1 is a circuit diagram showing the configuration of an external circuit, which is made up of a display controller 1 and a selection circuit 2. The display controller 1 is composed of: a decoder 3 that decodes the video input signal and outputs a video signal of the three primary colors of R'G'B, and a video buffer 4 'that amplifies the video signal from the decoder 3 by current amplification. Incoming signal separation synchronization signal synchronization separation circuit $; According to the separated synchronization signal, the blanking pulse BLP (Blanking -------------— I —---- • install --- ----- Order -------- · (Please read the notes on the back before filling in this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 6 311197 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 488187 A7 B7 V. Description of Invention (7)
Pulse)及箝位脈衝CLP(Clamp Pulse)之遮沒脈衝產生電路6 及箝位脈衝產生電路7;以及根據同步分離電路5之輸出 而產生供有機EL顯示面板使用之各種時序訊號之時序控 制器8所構成。 選擇電路2係將η通道之TFT9與1 0予以串聯連結而 構成；TFT9之一端係連接於反向偏壓VBS(Bias Voltage); TFT 10之一端係連接於接地電位或負電位之電壓Vcd ; TFT9及10之另一端係連接於與第3圖所示EL元件20之 陰極202(第4，5圖之47)連繫之連接端子T。箝位脈衡 BLP(Blanking Pulse)為直接輸入於TFT9之閘極，藉反相 器（inverter)l 1而輸入箝位脈衝BLP(Blanking Pulse)之反 轉訊號於在TFT10之閘極。在此，反向偏壓電壓VBS(Bias Voltage)係設定成高於第3圖所示之電源電壓Vdd之電 壓，例如設定成20V。 如第2圖（a)所示，輸入顯示控制器1之視頻輸入訊號 為明確地分離顯示期間與非顯示期間，遮沒脈衝 BLP(Blanking Pulse)係如第2圖（b)所示，在非顯示期間輸 出。箝位脈衝CLP(Clamp Pulse)係以第2圖所示之狀態輸 出，並且也在非顯示期間輸出之。第2圖（d)係同步分離之 水平同步訊號 Hsync(Horizontanl Synchronized signal)。 如第2圖（b)所示，箝位脈衝CLP(Clamp Pulse)係在顯 示期間成為L電位，該L電位訊號為輸入於TFT9之閘極， 反轉L電位訊號之Η電位訊號即輸入於TFT10之閘極，使 TFT9不導通（OFF)而使TFT10導通（ON)。因此，選擇電路 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297 :釐) η 311197 # I -------If —-------1---------^--------- <請先閱讀背面之注意事項再填寫本頁) 488187 A7Pulse) and clamp pulse CLP (Clamp Pulse) masking pulse generating circuit 6 and clamping pulse generating circuit 7; and a timing controller that generates various timing signals for organic EL display panels based on the output of the synchronous separation circuit 5 Constituted by 8. The selection circuit 2 is formed by connecting the TFTs 9 and 10 of the n-channel in series; one end of the TFT9 is connected to a reverse bias voltage VBS (Bias Voltage); one end of the TFT 10 is connected to a ground potential or a negative voltage Vcd; The other ends of the TFTs 9 and 10 are connected to a connection terminal T connected to the cathode 202 (47 in FIGS. 4 and 5) of the EL element 20 shown in FIG. The clamp pulse balance BLP (Blanking Pulse) is directly input to the gate of TFT9, and the inversion signal of the clamp pulse BLP (Blanking Pulse) is input to the gate of TFT10 through the inverter 11. Here, the reverse bias voltage VBS (Bias Voltage) is set to a voltage higher than the power supply voltage Vdd shown in FIG. 3, and is set to, for example, 20V. As shown in Fig. 2 (a), the video input signal of the input display controller 1 is to clearly separate the display period from the non-display period. The blanking pulse BLP (Blanking Pulse) is as shown in Fig. 2 (b). Output during non-display. The clamp pulse CLP (Clamp Pulse) is output in the state shown in Figure 2 and is also output during non-display periods. Figure 2 (d) is the horizontal sync signal Hsync (Horizontanl Synchronized signal). As shown in Figure 2 (b), the clamp pulse CLP (Clamp Pulse) becomes the L potential during the display period. The L potential signal is input to the gate of TFT9, and the Η potential signal of the inverted L potential signal is input to The gate of the TFT10 keeps the TFT9 from turning off and turns the TFT10 on. Therefore, the paper size of the selection circuit is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297: centimeter) η 311197 # I ------- If -------- 1 ----- ---- ^ --------- < Please read the notes on the back before filling this page) 488187 A7
五、發明說明（8 ) 2在顯示期間中，將接地電位或負電位之電壓Vcd輸出於 連接端子T，該電壓vcd即通過端子T而供給於全EL元 件20之陰極202。全EL元件20之陽極201為如上述藉驅 動用TFT24而連接於正的電源電壓vdd，EL元件係順方 向偏壓，可實現如同以往之電流驅動。 另一方面，遮沒脈衝BLP(Blanking Pulse)為，在非顯 示期間成為Η電位，該Η電位訊號係輸入於TFT9之閘極， 反轉Η電位訊號之L電位訊號則輸入於TFT10之閘極，使 TFT9導通（ON)而使TFT10不導通（OFF)。因此，選擇電路 2在非顯示期間，有反向偏壓vBS(Bias Voltage)輸出於連 接端子T，而該電壓VBS(Bias Voltage)即通過端子T而供 給於全EL元件20之陰極202。然後，如上述，電壓VBS(Bias Voltage)係設定成高於電源電壓vdd的電壓，有高於陽極 201之電壓施加於EL元件20之陰極，對EL元件20施加 反向偏壓^ 一般EL元件20在顯示期間重複實行電流驅動時，在 電洞輸送層44與發光層45之間或電子輸送層46與發光層 4 5之間積留空間電荷’此乃成為縮短壽命之原因。然而， 在本實施形態中，於非顯示期間時對EL元件20有施加反 向偏壓’可使積留在電洞輸送層44與發光層45之間或電 子輸送層46與發光層45之間之空間電荷放電。尤其是， 遮沒脈衝BLP(Blanking Pulse)係在非顯示期間内每按一水 平期間定期輸出的關係’頻繁地實行電荷之放電，可儘量 防止電荷之積留。因此，可延長EL元件20之壽命。 {請先閱讀背面之注音？事項再填寫本頁) 丨_裝V. Description of the invention (8) 2 During the display period, the voltage Vcd of the ground potential or the negative potential is output to the connection terminal T, and the voltage vcd is supplied to the cathode 202 of the full EL element 20 through the terminal T. The anode 201 of the full EL element 20 is connected to the positive power supply voltage vdd by the driving TFT 24 as described above. The EL element is biased in the forward direction, and current driving can be realized as in the past. On the other hand, the blanking pulse BLP (Blanking Pulse) is a pseudo potential during non-display period. The pseudo potential signal is input to the gate of TFT9, and the L potential signal of the inverted pseudo potential signal is input to the gate of TFT10. TFT9 is turned on (ON) and TFT10 is turned off (OFF). Therefore, during the non-display period, the selection circuit 2 has a reverse bias vBS (Bias Voltage) output to the connection terminal T, and the voltage VBS (Bias Voltage) is supplied to the cathode 202 of the full EL element 20 through the terminal T. Then, as described above, the voltage VBS (Bias Voltage) is set to a voltage higher than the power supply voltage vdd, and a voltage higher than the anode 201 is applied to the cathode of the EL element 20, and a reverse bias is applied to the EL element 20 ^ General EL element When the current drive is repeatedly performed during the display period, a space charge is accumulated between the hole transporting layer 44 and the light emitting layer 45 or between the electron transporting layer 46 and the light emitting layer 45, which is the reason for shortening the life. However, in this embodiment, applying a reverse bias to the EL element 20 during the non-display period may cause accumulation between the hole transport layer 44 and the light emitting layer 45 or between the electron transport layer 46 and the light emitting layer 45. The space charge is discharged. In particular, the blanking pulse BLP (Blanking Pulse) is based on the regular output of each horizontal period during the non-display period. The charge is frequently discharged to prevent the accumulation of charge as much as possible. Therefore, the life of the EL element 20 can be extended. {Please read the Zhuyin on the back? Please fill in this page for matters) 丨 _pack
•I ϋ n ϋ^OJ· I n ϋ ai n ϋ I I 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） 8 311197 488187 經濟部智慧財產局員工消費合作社印製 A7 五、發明說明（9 在本實施形態中，對選擇電路2輸入來自顯示控制器 1之遮沒脈衝BLP(Blanking Pulse)，但改為輸人箝位脈衝 CLP(ClamP Pulse)或者只在非顯示期間輸出之其他脈衝以 取代輸入上述之BLP(Blanking Pulse)也可以。 又，本實施形態為，將陽極作為固定電位，用選擇電 路來改變供給於陰極之電壓’但相反地，將陰極作為固定 電位，用選擇電路來改變供給於陽極之電壓也可以；再者， 用選擇電路來改變供給於陽極與陰極雙方之電壓也可以。 [發明之效果] 根據本發明，以重複實行電流媒動使積留在EL元件 内之空間電荷在非顯示期間内放電，對顯示期間中之驅動 不發生任何影響的狀態下可實現延長EL元件之壽命。 [圖式之簡單說明] 第1圖係顯*本發明之實施形態+之外部電路構成之 電路圖。 第2圖係說明在第！圖中所示電路之動作之時序圖 表。 第3圖係顯示本發明之實施形態中之肛顯示板面之 構成之電路圖。 第4圖係顯示本發明之實施形態中之此顯示板面之 構造之剖視圖。 第5圖係顯示本發明之實施形態中之虹顯示板面之 構造之平視圖。 第6圖係顯示以往之机顯示裝置之構成之電路圖 本紙張尺度適用中國國家標準（CNS)A4規iiTilo X 297公爱 ---—^1 裝--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 488187 A7 B7 五、發明說明（10 ) 第7圖係顯示以往之EL顯示裝置之構造之剖視圖。 經濟部智慧財產局員工消費合作社印製 [元件編號之說明] 1 顯示控制器 2 選擇電路 3 解碼器 4 視頻緩衝器 5 同步分離電路 6 遮沒脈衝產生電路 7 箝位脈衝產生電路 8 時序控制器 9 > 10 > 21、71、74 TFT 11 反相器 20 > 70 有機EL元件 22 > 72 電容器 24、36 驅動用TFT 25 > 75 顯示訊號線 26 > 76 選擇訊號線 27 - 77 電源線 31 汲極線 32 電源電壓線 33 閘極線 37 ^ 51 、201 陽極 38 - 60 玻璃基板 39 ^ 61 閘電極 40、62 閘極絕緣膜 41、65 多晶碎薄膜 42 〜66 層間絕緣膜 43 > 67 平坦化膜 44 > 52 電洞輸送層 45、53 發光層 46 - 54 電子輸送層 47、55 、202陰極 48 訊號基板 63 汲極區域 64 源極區域 68 没極電極 (請先閱讀背面之注意事項再填寫本頁) 裝 n n ϋ>« —ϋ ^ ^ · i —ϋ «ϋ— 1_1 言 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 10 311197• I ϋ n ϋ ^ OJ · I n ϋ ai n ϋ II Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economy This paper applies the Chinese National Standard (CNS) A4 specification (210 x 297 mm) 8 311197 488187 Ministry of Economy Wisdom Printed by A7 of the Consumer Cooperative of the Property Bureau. V. Invention Description (9 In this embodiment, the blanking pulse BLP (Blanking Pulse) from the display controller 1 is input to the selection circuit 2, but the clamp pulse CLP ( (ClamP Pulse) or other pulses output only during non-display periods instead of inputting the BLP (Blanking Pulse) described above. In this embodiment, the anode is used as a fixed potential, and the voltage supplied to the cathode is changed by a selection circuit. On the contrary, it is also possible to use the selection circuit to change the voltage supplied to the anode by using the cathode as a fixed potential, and also use the selection circuit to change the voltage supplied to both the anode and the cathode. [Effects of the Invention] According to the present invention The space charge accumulated in the EL element is repeatedly discharged during the non-display period by repeatedly performing the current medium motion, and does not affect the driving during the display period. In the state, the life of the EL element can be extended. [Simplified description of the diagram] Fig. 1 is a circuit diagram showing the structure of an embodiment of the present invention + an external circuit. Fig. 2 is an illustration of the circuit shown in Fig.! The timing chart of the action. Figure 3 is a circuit diagram showing the structure of the anal display panel surface in the embodiment of the present invention. Figure 4 is a sectional view showing the structure of the display panel surface in the embodiment of the present invention. Figure 5 It is a plan view showing the structure of the iridescent display panel surface in the embodiment of the present invention. Figure 6 is a circuit diagram showing the structure of the conventional machine display device. The paper scale is applicable to the Chinese National Standard (CNS) A4 regulations. ---— ^ 1 Packing -------- Order --------- (Please read the notes on the back before filling this page) 488187 A7 B7 V. Description of the invention (10) No. 7 The figure is a sectional view showing the structure of a conventional EL display device. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Description of component numbers] 1 Display controller 2 Selection circuit 3 Decoder 4 Video buffer 5 Synchronous separation circuit 6 Masking Pulse generation circuit 7 clamp Impulse generating circuit 8 timing controller 9 > 10 > 21, 71, 74 TFT 11 inverter 20 > 70 organic EL element 22 > 72 capacitor 24, 36 driving TFT 25 > 75 display signal line 26 > 76 Select signal line 27-77 Power line 31 Drain line 32 Power voltage line 33 Gate line 37 ^ 51, 201 Anode 38-60 Glass substrate 39 ^ 61 Gate electrode 40, 62 Gate insulation film 41, 65 Polycrystalline Shattered film 42 to 66 Interlayer insulation film 43 > 67 Flattening film 44 > 52 Hole transport layer 45, 53 Light emitting layer 46-54 Electron transport layer 47, 55, 202 Cathode 48 Signal substrate 63 Drain region 64 Source Area 68 non-polar electrode (please read the precautions on the back before filling this page). Nn ϋ > «—ϋ ^ ^ · i —ϋ« ϋ — 1_1 This paper is in accordance with China National Standard (CNS) A4 specification (210 X 297 mm) 10 311197
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11073927A JP2000268957A (en) | 1999-03-18 | 1999-03-18 | Electroluminescence display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW488187B true TW488187B (en) | 2002-05-21 |
Family
ID=13532274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW089104464A TW488187B (en) | 1999-03-18 | 2000-03-13 | Electro luminescence display device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000268957A (en) |
| KR (1) | KR20010014601A (en) |
| TW (1) | TW488187B (en) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001109432A (en) * | 1999-10-06 | 2001-04-20 | Pioneer Electronic Corp | Driving device for active matrix type light emitting panel |
| TW535454B (en) * | 1999-10-21 | 2003-06-01 | Semiconductor Energy Lab | Electro-optical device |
| JP3736399B2 (en) | 2000-09-20 | 2006-01-18 | セイコーエプソン株式会社 | Drive circuit for active matrix display device, electronic apparatus, drive method for electro-optical device, and electro-optical device |
| TW530427B (en) | 2000-10-10 | 2003-05-01 | Semiconductor Energy Lab | Method of fabricating and/or repairing a light emitting device |
| JP5441673B2 (en) * | 2000-10-12 | 2014-03-12 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| JP3937789B2 (en) * | 2000-10-12 | 2007-06-27 | セイコーエプソン株式会社 | DRIVE CIRCUIT, ELECTRONIC DEVICE, AND ELECTRO-OPTICAL DEVICE INCLUDING ORGANIC ELECTROLUMINESCENCE ELEMENT |
| JP4556957B2 (en) * | 2000-10-12 | 2010-10-06 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| JP2002169509A (en) * | 2000-11-30 | 2002-06-14 | Sanyo Electric Co Ltd | Method for driving flat display panel and method for driving organic electro-luminescence display panel |
| JP3757797B2 (en) * | 2001-01-09 | 2006-03-22 | 株式会社日立製作所 | Organic LED display and driving method thereof |
| KR20020089923A (en) * | 2001-05-25 | 2002-11-30 | 주식회사 엘리아테크 | Driving circuit of organic electro luminescence display element |
| JP2010122700A (en) * | 2001-09-10 | 2010-06-03 | Seiko Epson Corp | Electro-optical device and electronic equipment |
| JP4163225B2 (en) * | 2001-09-17 | 2008-10-08 | 株式会社半導体エネルギー研究所 | Semiconductor device and light emitting device |
| JP3810724B2 (en) * | 2001-09-17 | 2006-08-16 | 株式会社半導体エネルギー研究所 | LIGHT EMITTING DEVICE AND ELECTRONIC DEVICE |
| JP3917494B2 (en) * | 2001-09-17 | 2007-05-23 | 株式会社半導体エネルギー研究所 | Driving method of light emitting device |
| TW563088B (en) * | 2001-09-17 | 2003-11-21 | Semiconductor Energy Lab | Light emitting device, method of driving a light emitting device, and electronic equipment |
| JP3810725B2 (en) * | 2001-09-21 | 2006-08-16 | 株式会社半導体エネルギー研究所 | LIGHT EMITTING DEVICE AND ELECTRONIC DEVICE |
| JP2006338042A (en) * | 2001-09-21 | 2006-12-14 | Semiconductor Energy Lab Co Ltd | Light emitting device, and driving method of light emitting device |
| US7226332B2 (en) | 2002-04-30 | 2007-06-05 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and manufacturing method thereof |
| US9153168B2 (en) | 2002-07-09 | 2015-10-06 | Semiconductor Energy Laboratory Co., Ltd. | Method for deciding duty factor in driving light-emitting device and driving method using the duty factor |
| KR20040019207A (en) | 2002-08-27 | 2004-03-05 | 엘지.필립스 엘시디 주식회사 | Organic electro-luminescence device and apparatus and method driving the same |
| JP2004117921A (en) * | 2002-09-26 | 2004-04-15 | Toshiba Matsushita Display Technology Co Ltd | Electroluminescence display device and method for driving electroluminescence display device |
| JP4023335B2 (en) * | 2003-02-19 | 2007-12-19 | セイコーエプソン株式会社 | Electro-optical device, driving method of electro-optical device, and electronic apparatus |
| JP4619289B2 (en) | 2003-03-26 | 2011-01-26 | 株式会社半導体エネルギー研究所 | Display device, driving method thereof, and electronic apparatus |
| JP2004325885A (en) * | 2003-04-25 | 2004-11-18 | Seiko Epson Corp | Optoelectronic device, method for driving optoelectronic device, and electronic equipment |
| JP4641710B2 (en) * | 2003-06-18 | 2011-03-02 | 株式会社半導体エネルギー研究所 | Display device |
| JP2005017485A (en) * | 2003-06-24 | 2005-01-20 | Seiko Epson Corp | Electro-optical device, driving method of electro-optical device, and electronic apparatus |
| JP4939737B2 (en) * | 2003-08-08 | 2012-05-30 | 株式会社半導体エネルギー研究所 | Light emitting device |
| US8937580B2 (en) | 2003-08-08 | 2015-01-20 | Semiconductor Energy Laboratory Co., Ltd. | Driving method of light emitting device and light emitting device |
| JP4495952B2 (en) * | 2003-11-25 | 2010-07-07 | 東北パイオニア株式会社 | Organic EL display device and driving method thereof |
| US7646367B2 (en) * | 2005-01-21 | 2010-01-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, display device and electronic apparatus |
| JP5177953B2 (en) * | 2005-01-21 | 2013-04-10 | 株式会社半導体エネルギー研究所 | Semiconductor device and display device |
| JP2006251454A (en) * | 2005-03-11 | 2006-09-21 | Sanyo Electric Co Ltd | Active matrix type display device and method for driving the same |
| JP2010181903A (en) * | 2010-03-19 | 2010-08-19 | Seiko Epson Corp | Electro-optical apparatus, method of driving the same, and electronic device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3169974B2 (en) * | 1991-04-08 | 2001-05-28 | パイオニア株式会社 | Organic electroluminescent display device and driving method thereof |
| JPH1055154A (en) * | 1996-05-29 | 1998-02-24 | Fuji Electric Co Ltd | Driving method for display element |
| JPH113048A (en) * | 1997-06-10 | 1999-01-06 | Canon Inc | Electroluminescent element and device and their production |
-
1999
- 1999-03-18 JP JP11073927A patent/JP2000268957A/en active Pending
-
2000
- 2000-03-13 TW TW089104464A patent/TW488187B/en not_active IP Right Cessation
- 2000-03-17 KR KR1020000013554A patent/KR20010014601A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000268957A (en) | 2000-09-29 |
| KR20010014601A (en) | 2001-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW488187B (en) | Electro luminescence display device | |
| KR102660971B1 (en) | Organic Light Emitting Diode Display Having Multi-Layer Stack Structure | |
| TW566055B (en) | Active type electro-luminescence display device | |
| TWI410912B (en) | Display device and driving method thereof | |
| TW441224B (en) | Color electroluminescent display device | |
| CN1941029B (en) | Display device and electronic device | |
| KR101209055B1 (en) | Display device and driving method thereof | |
| CN104269431B (en) | A kind of organic elctroluminescent device, its driving method and display device | |
| CN104269429B (en) | A kind of organic elctroluminescent device, its driving method and display device | |
| US7773055B2 (en) | Display device and driving method thereof | |
| CN101167118B (en) | Light emitting device and method for driving thereof | |
| KR100763912B1 (en) | A-si tft and organic light emitting display employing the same | |
| US8368675B2 (en) | Organic light emitting display device | |
| KR20070099242A (en) | Display device and driving method thereof | |
| TW577241B (en) | Display device | |
| CN105140258B (en) | Organic EL display | |
| EP2287913A2 (en) | Electronic device, thin film transistor structure and flat panel display having the same | |
| EP1617481A2 (en) | Electronic structure of an electronic device, thin film transistor structure and flat panel display having the same | |
| CN111009552B (en) | display device | |
| US7855502B2 (en) | Display device and method of driving the same | |
| JP2005338824A (en) | Electroluminescent display and pixel driving unit thereof | |
| KR20150078918A (en) | Flexible display and method for fabricating flexible display | |
| JP6787849B2 (en) | Light emitting device | |
| JP5536365B2 (en) | Image display device | |
| KR20230102779A (en) | Organic Light Emitting Display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent | ||
| MM4A | Annulment or lapse of patent due to non-payment of fees |