JPS646931A - Driving system for liquid crystal display element - Google Patents

Driving system for liquid crystal display element

Info

Publication number
JPS646931A
JPS646931A JP16180287A JP16180287A JPS646931A JP S646931 A JPS646931 A JP S646931A JP 16180287 A JP16180287 A JP 16180287A JP 16180287 A JP16180287 A JP 16180287A JP S646931 A JPS646931 A JP S646931A
Authority
JP
Japan
Prior art keywords
display
bias
digits
digit
computation
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
JP16180287A
Other languages
Japanese (ja)
Other versions
JPH0575093B2 (en
Inventor
Shoji Kiribayashi
Kanetomo Kitanishi
Tadaharu Mukai
Kazuhito Ozawa
Shin Tada
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 JP16180287A priority Critical patent/JPS646931A/en
Publication of JPS646931A publication Critical patent/JPS646931A/en
Publication of JPH0575093B2 publication Critical patent/JPH0575093B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE:To prevent wasteful electric power consumption by executing selection of the digits for which a bias is required and the digits for which the bias is not required among non-display digits and the detection of the state in which the bias is required for all of the non-display digits and executing the impression and non-impression of the bias by switching of driving voltage waveforms. CONSTITUTION:A part 1 for detecting the display digit+1st digit detects the non- display digit adjacent to the display digit now under display and detects whether the present arithmetic processing is under execution or not to an arithmetic detecting part 2. A bias impressing part 3 impresses the bias voltage between the segment electrodes of the non-display digits and common electrode of a liquid crystal display element 4. Namely, the bias is applied only to the digit which is changed in the display state by the next registration, i.e., the non-display digit adjacent to the display digit to expedite the rising of the display. The bias is not impressed to the other non-display digits as there is no need for such. Since the number of the digits in the result of the computation is unknown at the time of the computation, the bias is impressed to all the digits upon starting of the computation. The bias is impressed only to the non-display digits adjacent to the display digits when the results of the computation are displayed. The unnecessary electric power consumption is thereby eliminated.
JP16180287A 1987-06-29 1987-06-29 Driving system for liquid crystal display element Granted JPS646931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16180287A JPS646931A (en) 1987-06-29 1987-06-29 Driving system for liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16180287A JPS646931A (en) 1987-06-29 1987-06-29 Driving system for liquid crystal display element

Publications (2)

Publication Number Publication Date
JPS646931A true JPS646931A (en) 1989-01-11
JPH0575093B2 JPH0575093B2 (en) 1993-10-19

Family

ID=15742192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16180287A Granted JPS646931A (en) 1987-06-29 1987-06-29 Driving system for liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS646931A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7435070B2 (en) 2002-11-08 2008-10-14 Fanuc Ltd. Control apparatus for injection molding machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4879531A (en) * 1972-01-24 1973-10-25
JPS4925891A (en) * 1972-07-04 1974-03-07
JPS51292A (en) * 1974-06-19 1976-01-05 Hitachi Ltd Ekishohyojisochino kudohoshiki

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4879531A (en) * 1972-01-24 1973-10-25
JPS4925891A (en) * 1972-07-04 1974-03-07
JPS51292A (en) * 1974-06-19 1976-01-05 Hitachi Ltd Ekishohyojisochino kudohoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7435070B2 (en) 2002-11-08 2008-10-14 Fanuc Ltd. Control apparatus for injection molding machine

Also Published As

Publication number Publication date
JPH0575093B2 (en) 1993-10-19

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