JPS5450224A - Multiple-gradation modulator of thin-film el - Google Patents

Multiple-gradation modulator of thin-film el

Info

Publication number
JPS5450224A
JPS5450224A JP11640477A JP11640477A JPS5450224A JP S5450224 A JPS5450224 A JP S5450224A JP 11640477 A JP11640477 A JP 11640477A JP 11640477 A JP11640477 A JP 11640477A JP S5450224 A JPS5450224 A JP S5450224A
Authority
JP
Japan
Prior art keywords
pulse
signal
pulse width
display
input
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
Application number
JP11640477A
Other languages
Japanese (ja)
Other versions
JPS6118904B2 (en
Inventor
Nobutoshi Gako
Yasukuni Yamane
Chuji Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP11640477A priority Critical patent/JPS5450224A/en
Priority to US05/941,202 priority patent/US4234821A/en
Priority to FR7826294A priority patent/FR2403700A1/en
Priority to DE2839860A priority patent/DE2839860C3/en
Priority to GB7836830A priority patent/GB2007002B/en
Priority to GB8037527A priority patent/GB2061589B/en
Publication of JPS5450224A publication Critical patent/JPS5450224A/en
Publication of JPS6118904B2 publication Critical patent/JPS6118904B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Control Of El Displays (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To perform a multiple-gradation display of 2<n> by a simple constitution, by selecting a pulse corresponding to n-number bits after converting an input signal to the n-bit digital signal and generating a display signal pulse and performing amplitude modulation. CONSTITUTION:In this case, pulse width generator circuit 19 generates modulating pulse width signals t0, t1...t7 and strobe signal ts in parallel by the trigger input from timing control circuit 9. That is, monostable multivibrators 21 to 29 are provided with variable resistances VRS, VRO to VR7 and capacitors Cs, C0 to C7 respectively, and can adjust output pulse width ts, t0 to t7 independently of one another. Then, in general, after the input signals s converted to a n-bit digital signal, a pulse corresponding to the n-number bits is selected. Then, a display signal pulse is generated to perform amplitude modulation, so that a multiple-gradation display of 2<n> can be performed by a simple constitution.
JP11640477A 1977-09-14 1977-09-27 Multiple-gradation modulator of thin-film el Granted JPS5450224A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11640477A JPS5450224A (en) 1977-09-27 1977-09-27 Multiple-gradation modulator of thin-film el
US05/941,202 US4234821A (en) 1977-09-14 1978-09-11 Flat panel television receiver implemented with a thin film EL panel
FR7826294A FR2403700A1 (en) 1977-09-14 1978-09-13 TELEVISION RECEIVER WHOSE SCREEN IS AN ELECTROLUMINESCENT PANEL
DE2839860A DE2839860C3 (en) 1977-09-14 1978-09-13 Television receiver with a screen in the form of an electoluminescent thin-film display device
GB7836830A GB2007002B (en) 1977-09-14 1978-09-14 Flat panel television receiver implemented with a thin film el panel
GB8037527A GB2061589B (en) 1977-09-14 1978-09-14 Electroluminescent video apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11640477A JPS5450224A (en) 1977-09-27 1977-09-27 Multiple-gradation modulator of thin-film el

Publications (2)

Publication Number Publication Date
JPS5450224A true JPS5450224A (en) 1979-04-20
JPS6118904B2 JPS6118904B2 (en) 1986-05-14

Family

ID=14686201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11640477A Granted JPS5450224A (en) 1977-09-14 1977-09-27 Multiple-gradation modulator of thin-film el

Country Status (1)

Country Link
JP (1) JPS5450224A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000148088A (en) * 1998-11-16 2000-05-26 Tdk Corp Drive assembly for organic el display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000148088A (en) * 1998-11-16 2000-05-26 Tdk Corp Drive assembly for organic el display device

Also Published As

Publication number Publication date
JPS6118904B2 (en) 1986-05-14

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