WO2001029813A1 - Dispositif a courant constant, dispositif d'affichage, et procede de commande - Google Patents
Dispositif a courant constant, dispositif d'affichage, et procede de commande Download PDFInfo
- Publication number
- WO2001029813A1 WO2001029813A1 PCT/JP2000/005978 JP0005978W WO0129813A1 WO 2001029813 A1 WO2001029813 A1 WO 2001029813A1 JP 0005978 W JP0005978 W JP 0005978W WO 0129813 A1 WO0129813 A1 WO 0129813A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- constant current
- light emitting
- emitting element
- value
- reference value
- Prior art date
Links
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
-
- 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]
- G09G3/3216—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 a passive matrix
-
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3283—Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
Definitions
- the display control unit 5 supplies a control signal to the display data storage unit 6 via the control bus 24, provides address data via the address bus 26, and performs main control via the data bus 25.
- the display data sent from the unit 4 is sent to the display data storage unit 6 for writing, and the display data is read from the display data storage unit 6. Further, the display control unit 5 controls the control bus 28 for each of the driving circuits 2 and 3A to 3D.
- a control signal is supplied through the data line 27 and a latch pulse is supplied through the signal line 27 to control each of the driving circuits 2, 3A to 3D, and the data electrode driving circuit 3A through the data bus 29.
- the display data is transferred to ⁇ 3D to control the display.
- FIG. 5 is a circuit diagram showing an example of a reference value generation circuit that generates a reference voltage V ref as a reference value given to the constant current circuit 31 in FIG.
- the reference value generation circuit 40 shown in FIG. 5 has zener diodes TD 1 and TD 2, a switch S 3, and a resistor 41.
- the anodes of the Zener diodes T D1 and T D2 are grounded.
- Switch S3 has one movable contact and two fixed contacts.
- the force sword of the Zener diode TD1 is connected to one fixed contact of the switch S3, and the force sword of the Zener diode TD2 is connected to the other fixed contact of the switch S3.
- the power supply voltage V is applied to one end of the resistor 41, and the other end is connected to the movable contact of the switch S3.
- the connection point between the resistor 41 and the movable contact of the switch S3 is connected to the output terminal 42, from which the reference voltage Vref is output. Note that the resistor 41 is for limiting the current flowing to the output terminal 42.
- the reference value generating circuit 40 shown in FIG. 5 is provided in the data electrode driving unit 3 shown in FIG. 1, and is a common reference voltage for the constant current circuit 31 provided for each data electrode. Pressure V ref.
- the switch S3 is controlled by the display control unit 5 in synchronization with the latch pulse.
- the control signal for switching the switch S3 may be output from the display control unit 5, or may be generated by a circuit in the data electrode driving unit 3 based on the latch pulse output from the display control unit 5. You may.
- the Zener voltage of the Zener diode TD1 is larger than the Zener voltage of the Zener diode TD2.
- the display device is manufactured, for example, as follows using the organic EL display device 1 manufactured as described above. That is, for the organic EL display 1, one scan electrode drive circuit 2 composed of 64 output driver ICs and four data electrode drive circuits 3A to 3D each composed of 64 output driver ICs Is implemented, for example, in TAB (Tape Carrier Package). Furthermore, the display device is completed by connecting the drive circuits 2 and 3A to 3D with a flat cable to a printed circuit board (PCB; Printed Circuit Board) on which a control circuit such as a controller or a microcomputer is mounted.
- PCB printed circuit board
- the present invention is applicable not only to the organic EL display device but also to any display device having a light emitting element serving as a capacitive load.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020017006223A KR20010113635A (ko) | 1999-10-20 | 2000-09-04 | 정전류장치, 표시장치 및 그 구동방법 |
EP00956893A EP1164565A1 (en) | 1999-10-20 | 2000-09-04 | Constant-current device, display device, and method for driving the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29759399 | 1999-10-20 | ||
JP11/297593 | 1999-10-20 | ||
JP2000/192023 | 2000-06-27 | ||
JP2000192023A JP2001188501A (ja) | 1999-10-20 | 2000-06-27 | 定電流装置、表示装置およびその駆動方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001029813A1 true WO2001029813A1 (fr) | 2001-04-26 |
Family
ID=26561177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/005978 WO2001029813A1 (fr) | 1999-10-20 | 2000-09-04 | Dispositif a courant constant, dispositif d'affichage, et procede de commande |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1164565A1 (ja) |
JP (1) | JP2001188501A (ja) |
KR (1) | KR20010113635A (ja) |
WO (1) | WO2001029813A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1494203A2 (en) * | 2001-08-02 | 2005-01-05 | Seiko Epson Corporation | Driving of data lines used in a control circuit of a display device |
KR100469975B1 (ko) * | 2001-10-24 | 2005-02-02 | 엘지전자 주식회사 | 정전류 회로를 사용하는 평면형 전계방출 표시장치의구동장치 |
CN100380420C (zh) * | 2004-06-22 | 2008-04-09 | 索尼株式会社 | 矩阵型显示单元及其驱动方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3810725B2 (ja) * | 2001-09-21 | 2006-08-16 | 株式会社半導体エネルギー研究所 | 発光装置及び電子機器 |
US6777885B2 (en) * | 2001-10-12 | 2004-08-17 | Semiconductor Energy Laboratory Co., Ltd. | Drive circuit, display device using the drive circuit and electronic apparatus using the display device |
KR20030080908A (ko) * | 2002-04-11 | 2003-10-17 | 주식회사 엘리아테크 | 유기 전계발광 표시패널의 구동장치 |
US20050285821A1 (en) * | 2002-08-21 | 2005-12-29 | Adrianus Sempel | Display device |
KR100511255B1 (ko) * | 2002-09-23 | 2005-08-31 | 엘지전자 주식회사 | 디스플레이 소자 구동장치 및 방법 |
KR100476368B1 (ko) | 2002-11-05 | 2005-03-17 | 엘지.필립스 엘시디 주식회사 | 유기 전계발광 표시패널의 데이터 구동 장치 및 방법 |
GB2404274B (en) * | 2003-07-24 | 2007-07-04 | Pelikon Ltd | Control of electroluminescent displays |
US8427075B2 (en) * | 2008-12-12 | 2013-04-23 | Microchip Technology Incorporated | Constant current output sink or source |
TWI588540B (zh) * | 2012-05-09 | 2017-06-21 | 半導體能源研究所股份有限公司 | 顯示裝置和電子裝置 |
JP6565553B2 (ja) * | 2015-09-30 | 2019-08-28 | 日本精機株式会社 | 有機elパネル用駆動装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1145071A (ja) * | 1997-05-29 | 1999-02-16 | Nec Corp | 有機薄膜el素子の駆動回路 |
JPH11231834A (ja) * | 1998-02-13 | 1999-08-27 | Pioneer Electron Corp | 発光ディスプレイ装置及びその駆動方法 |
JP2000138572A (ja) * | 1998-10-30 | 2000-05-16 | Nec Corp | 定電流駆動回路 |
-
2000
- 2000-06-27 JP JP2000192023A patent/JP2001188501A/ja active Pending
- 2000-09-04 KR KR1020017006223A patent/KR20010113635A/ko not_active Application Discontinuation
- 2000-09-04 EP EP00956893A patent/EP1164565A1/en not_active Withdrawn
- 2000-09-04 WO PCT/JP2000/005978 patent/WO2001029813A1/ja not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1145071A (ja) * | 1997-05-29 | 1999-02-16 | Nec Corp | 有機薄膜el素子の駆動回路 |
JPH11231834A (ja) * | 1998-02-13 | 1999-08-27 | Pioneer Electron Corp | 発光ディスプレイ装置及びその駆動方法 |
JP2000138572A (ja) * | 1998-10-30 | 2000-05-16 | Nec Corp | 定電流駆動回路 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1494203A2 (en) * | 2001-08-02 | 2005-01-05 | Seiko Epson Corporation | Driving of data lines used in a control circuit of a display device |
EP1494203A3 (en) * | 2001-08-02 | 2007-07-18 | Seiko Epson Corporation | Driving of data lines used in a control circuit of a display device |
US7466311B2 (en) | 2001-08-02 | 2008-12-16 | Seiko Epson Corporation | Driving of data lines used in unit circuit control |
KR100469975B1 (ko) * | 2001-10-24 | 2005-02-02 | 엘지전자 주식회사 | 정전류 회로를 사용하는 평면형 전계방출 표시장치의구동장치 |
CN100380420C (zh) * | 2004-06-22 | 2008-04-09 | 索尼株式会社 | 矩阵型显示单元及其驱动方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1164565A1 (en) | 2001-12-19 |
JP2001188501A (ja) | 2001-07-10 |
KR20010113635A (ko) | 2001-12-28 |
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