JPS6473390A - Driving of matrix display panel - Google Patents
Driving of matrix display panelInfo
- Publication number
- JPS6473390A JPS6473390A JP22949387A JP22949387A JPS6473390A JP S6473390 A JPS6473390 A JP S6473390A JP 22949387 A JP22949387 A JP 22949387A JP 22949387 A JP22949387 A JP 22949387A JP S6473390 A JPS6473390 A JP S6473390A
- Authority
- JP
- Japan
- Prior art keywords
- emitting cells
- light emitting
- pulse width
- scanning
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To make display luminance almost definite independently of the number of light emitting cells by controlling the display luminance correspondingly to the number of light emitting cells. CONSTITUTION: Display data for emitting cells on intersections between scanning electrodes S1 to Sm and data electrodes D1 to Dn are counted by a counter 4 or the like, and when there are many light emitting cells, the pulse width of pulses supplied from a high voltage pulse generating circuit 5 or the like is extended. Then the pulse width of synthetic writing voltage between scanning voltage corresponding to the count value of display data and data voltage is controlled. When there are many light emitting cells on the scanning electrodes, scanning voltage with wide pulse width is impressed to scanning electrodes increasing the number of light emitting cells, and even when a1 waveform accent is large, equivalent writing pulse width can be set to almost the same value as the pulse width of writing voltage to be impressed to scanning electrods reducing the number of light emitting cells. Thereby even when the numbers of light emitting cells are different, luminance can be almost equally set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229493A JP2797185B2 (en) | 1987-09-16 | 1987-09-16 | Matrix display panel drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229493A JP2797185B2 (en) | 1987-09-16 | 1987-09-16 | Matrix display panel drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6473390A true JPS6473390A (en) | 1989-03-17 |
JP2797185B2 JP2797185B2 (en) | 1998-09-17 |
Family
ID=16893029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62229493A Expired - Fee Related JP2797185B2 (en) | 1987-09-16 | 1987-09-16 | Matrix display panel drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2797185B2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0485592A (en) * | 1990-07-30 | 1992-03-18 | Koito Ind Ltd | Information display device |
JP2000221944A (en) * | 1999-02-01 | 2000-08-11 | Denso Corp | Driving method of el display device, and el display device |
JP2001515228A (en) * | 1997-08-29 | 2001-09-18 | キャンデサント、テクノロジーズ、コーポレーション | Circuit and method for controlling brightness of a supplied device in response to an optical sensor |
JP2001515229A (en) * | 1997-08-29 | 2001-09-18 | キャンデサント、テクノロジーズ、コーポレーション | Circuit and method for controlling the brightness of a supplied device |
JP2002221932A (en) * | 2001-01-29 | 2002-08-09 | Canon Inc | Image display device and driving method for electron source |
US6937214B2 (en) * | 2001-12-31 | 2005-08-30 | Wintek Corporation | Method for generating uniform luminosity for displaying contents of organic light emitting diode |
KR100768958B1 (en) * | 2007-06-15 | 2007-10-19 | (주)평화엔지니어링 | Outlet box |
US7292236B2 (en) | 2001-07-10 | 2007-11-06 | Canon Kabushiki Kaisha | Display driving method and display apparatus utilizing the same |
JP2013504081A (en) * | 2009-09-02 | 2013-02-04 | スコビル インダストリーズ コープ | Method and apparatus for driving an electroluminescent display |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6413194A (en) * | 1987-07-07 | 1989-01-18 | Sharp Kk | Driving of thin film el display device |
-
1987
- 1987-09-16 JP JP62229493A patent/JP2797185B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6413194A (en) * | 1987-07-07 | 1989-01-18 | Sharp Kk | Driving of thin film el display device |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0485592A (en) * | 1990-07-30 | 1992-03-18 | Koito Ind Ltd | Information display device |
JP2001515228A (en) * | 1997-08-29 | 2001-09-18 | キャンデサント、テクノロジーズ、コーポレーション | Circuit and method for controlling brightness of a supplied device in response to an optical sensor |
JP2001515229A (en) * | 1997-08-29 | 2001-09-18 | キャンデサント、テクノロジーズ、コーポレーション | Circuit and method for controlling the brightness of a supplied device |
JP2000221944A (en) * | 1999-02-01 | 2000-08-11 | Denso Corp | Driving method of el display device, and el display device |
JP2002221932A (en) * | 2001-01-29 | 2002-08-09 | Canon Inc | Image display device and driving method for electron source |
US7292236B2 (en) | 2001-07-10 | 2007-11-06 | Canon Kabushiki Kaisha | Display driving method and display apparatus utilizing the same |
US6937214B2 (en) * | 2001-12-31 | 2005-08-30 | Wintek Corporation | Method for generating uniform luminosity for displaying contents of organic light emitting diode |
KR100768958B1 (en) * | 2007-06-15 | 2007-10-19 | (주)평화엔지니어링 | Outlet box |
JP2013504081A (en) * | 2009-09-02 | 2013-02-04 | スコビル インダストリーズ コープ | Method and apparatus for driving an electroluminescent display |
Also Published As
Publication number | Publication date |
---|---|
JP2797185B2 (en) | 1998-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |