JPS5821715B2 - Display drive method - Google Patents
Display drive methodInfo
- Publication number
- JPS5821715B2 JPS5821715B2 JP8158175A JP8158175A JPS5821715B2 JP S5821715 B2 JPS5821715 B2 JP S5821715B2 JP 8158175 A JP8158175 A JP 8158175A JP 8158175 A JP8158175 A JP 8158175A JP S5821715 B2 JPS5821715 B2 JP S5821715B2
- Authority
- JP
- Japan
- Prior art keywords
- segments
- display
- segment
- current
- reduced
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title description 9
- 230000006386 memory function Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004042 decolorization Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
- G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
【発明の詳細な説明】
本発明はエレクトロクロミズム物質を用いたセグメント
の駆動方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for driving segments using electrochromic materials.
従来、セグメントで表示するものとしては液晶、ＬＥＤ
、ＰＬＺＴ、ＥＬ等が使用されており、表示を変える場
合一度全表示セグメントヲ消去して改めて必要とするセ
グメントに通電して表示していた。Conventionally, LCDs and LEDs have been used to display segments.
, PLZT, EL, etc., were used, and when changing the display, all display segments were erased once, and then the required segments were energized and displayed again.
本発明はエレクトロクロミズム物質の特性に基づく記憶
性、発色れあるいは消色性を積極的に利用し、できるだ
け消費電流の少ない表示方式を提供しようとするもので
ある。The present invention aims to provide a display system that consumes as little current as possible by actively utilizing the memory, color development, and color erasing properties based on the characteristics of electrochromic materials.
図面に基づき本発明の詳細な説明すると、第１図は本発
明の一実施例で７セグメントの表示パターンを示し、第
２図は時計の表示に用いた場合の通電方法の説明図であ
る。To explain the present invention in detail based on the drawings, FIG. 1 shows a 7-segment display pattern in one embodiment of the present invention, and FIG. 2 is an explanatory diagram of an energization method when used for displaying a clock.
時計に於ては必ず数字は１，２，３，４・・・と順方向
に変化する。In a clock, the numbers always change in the forward direction: 1, 2, 3, 4, and so on.
従って第２図に於て１から変化するものとするとセグメ
ン）ｂ、ｃによって表示され、次に２ｔ−表示する場合
には通常の表示方法の場合にはセグメントｂ。Therefore, in FIG. 2, if it changes from 1, it will be displayed by segments) b and c, and then 2t- will be displayed by segment b in the normal display method.
ｃ’に一旦消去し、２を表示するのにセグメントａ。Segment a to once erase c' and display 2.
ｂ、ｄ、ｅ、ｇを通電するので全部で７セグメントを駆
動することになるが、セグメントａ、ｂ。Since power is applied to b, d, e, and g, a total of seven segments will be driven, and segments a and b.
ｄ、ｅ、ｇによって表示される。Displayed by d, e, g.
２はこの場合セグメントｂはエレクトロクロミズム物質
には記憶性があるため通電しなくともよい。In this case, segment b does not need to be energized because the electrochromic material has a memory property.
セグメントｃは消色のため逆電圧を印加する。A reverse voltage is applied to segment c for decolorization.
従って駆動セグメントは５セグメントとなり２セグメン
ト分に相当する消費電流が軽減できる。Therefore, there are five drive segments, and the current consumption equivalent to two segments can be reduced.
次に３を表示する場合にはセグメントａｌｂｌｃｔｄ１
ｇにより表示される。Next, when displaying 3, segment alblctd1
It is displayed by g.
この場合セグメントｃに通電発色させセグメントｅは逆
電圧を印加し消色する。In this case, segment c is energized to develop color, and segment e is decolored by applying a reverse voltage.
セグメントａ、ｂ、ｄ、ｇは記憶状態にあるため通電し
なくてもよい。Segments a, b, d, and g are in a memorized state and do not need to be energized.
従って通常の駆動方法では１０セグメントの駆動である
が本発明の方法では電流消費にあずかるセグメントはｃ
、ｅのみであり他のセグメントａ ｔ ｂ ｔ ｄ ２
ｇは電流を消費しないので数字２を全部消去して後、通
電して３を表示する場合に比較し８セグメント分消費電
流が少なくて済む。Therefore, in the normal driving method, 10 segments are driven, but in the method of the present invention, the segments that participate in current consumption are c
, only e and other segments a t b t d 2
Since g does not consume current, the current consumption can be reduced by 8 segments compared to the case where the number 2 is completely erased and then energized to display 3.
次に４を表示する場合にはセグメントｂ。ｃ、ｇ、ｆに
より表示され、この場合セグメントｆに通電発色させ、
セグメン）ａ、ｄは逆電圧を印加し消色する。If 4 is to be displayed next, segment b. Displayed by c, g, f, in this case segment f is energized and colored,
Segments a and d are decolored by applying a reverse voltage.
セグメン）ｂ、ｃ、ｇは記憶状態にあるため通電しなく
ともよい。Segments) b, c, and g are in a memorized state and do not need to be energized.
従って消費電流にあずかるセグメントはａ、ｄ、ｆのみ
であるから通常の駆動方法に比ベロセグメント分消費電
流が少なくて済む。Therefore, since the segments a, d, and f are the only segments that take part in the current consumption, the current consumption can be reduced by the tongue segment compared to the normal driving method.
以下同様本発明の駆動方法によれば４から５では６セグ
メント分電流を軽減でき、５から６では１０セグメント
分の電流を軽減でき、６から７では６セグメント分の電
流を軽減でき７から８では８セグメント分の電流を軽減
でき、８から９では１２セグメント分の電流を軽減でき
、９からＯでは１０セグメント分の電流を軽減でき、０
から１では４セグメント分の電流が軽減できる。Similarly, according to the driving method of the present invention, from 4 to 5, the current can be reduced by 6 segments, from 5 to 6, the current can be reduced by 10 segments, and from 6 to 7, the current can be reduced by 6 segments, and from 7 to 8 , the current can be reduced by 8 segments, 8 to 9 can reduce the current by 12 segments, 9 to O can reduce the current by 10 segments, and 0 to 9 can reduce the current by 12 segments.
From 1, the current for 4 segments can be reduced.
従って数字の１サイクルでは通常の場合１００セグメン
トの駆動が必要であるが本発明の駆動方法では２８セグ
メントの駆動で済むため総計７２セグメント分の消費電
流が節約される。Therefore, in one numerical cycle, normally 100 segments need to be driven, but in the driving method of the present invention, only 28 segments need to be driven, so that the current consumption for a total of 72 segments can be saved.
但し記憶性の比較的短いエレクトロクロミズムを用いた
場合、長時間重複して通電しないセグメント（例えばＣ
セグメント又はａセグメント）には記憶時間に応じて適
宜通電することは自明である。However, when electrochromism with a relatively short memory is used, segments that are not energized repeatedly for a long time (for example, C
It is obvious that electricity is applied to the segment or a segment) as appropriate depending on the storage time.
又表示は文字、数字、絵、記号等すべての表示に応用で
きることは自明である。Furthermore, it is obvious that the display can be applied to all kinds of displays such as letters, numbers, pictures, and symbols.
よって本発明の駆動方式を腕時計の如き消費電流を極力
少なくしようとする場合には特に実用効果がある。Therefore, the drive system of the present invention is particularly effective in practical use when the current consumption is to be reduced as much as possible, such as in wristwatches.
第１図は７セグメントの表示パターン、第２図は本発明
の説明図。
ａ、ｂｓｃｓｄ＋ｅｓ ｆｔｇ”””セグメント。FIG. 1 is a seven-segment display pattern, and FIG. 2 is an explanatory diagram of the present invention. a, bscsd+es ftg””” segment.
Claims (1)
置に於て、表示内容を切換える場合、切換前の表示に必
要なセグメントと切換後の表示に必要なセグメントのう
ち共通に使用するセグメントには通電せず、消色もしく
は発色するセグメントにのみ通電することを特徴とする
ディジタル表示式電子時計の表示駆動方式。1. When switching display content in a display device that has a memory function such as electrochromism, do not energize the segments that are used in common among the segments necessary for the display before switching and the segments necessary for the display after switching. , a display drive system for a digital display type electronic watch characterized by energizing only the segments that are decolored or colored.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8158175A JPS5821715B2 (en) | 1975-07-02 | 1975-07-02 | Display drive method |
| US05/701,971 US4060974A (en) | 1975-07-02 | 1976-07-01 | Method and apparatus for driving electrochromic display device |
| GB27716/76A GB1556745A (en) | 1975-07-02 | 1976-07-02 | Driver circuit fo an electrochromic display device |
| HK343/82A HK34382A (en) | 1975-07-02 | 1982-07-29 | A driver circuit for an electrochromic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8158175A JPS5821715B2 (en) | 1975-07-02 | 1975-07-02 | Display drive method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS525571A JPS525571A (en) | 1977-01-17 |
| JPS5821715B2 true JPS5821715B2 (en) | 1983-05-02 |
Family
ID=13750269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8158175A Expired JPS5821715B2 (en) | 1975-07-02 | 1975-07-02 | Display drive method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821715B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121776A (en) * | 1978-03-14 | 1979-09-21 | Sanyo Electric Co Ltd | Time display device |
| JPS54184153U (en) * | 1978-06-17 | 1979-12-27 | ||
| JPS5584985A (en) * | 1978-12-20 | 1980-06-26 | Tokico Ltd | Display unit |
| US5308372A (en) * | 1984-01-18 | 1994-05-03 | Daniels Ralph S | Vegetable oil processing to obtain nutrient by-products |
-
1975
- 1975-07-02 JP JP8158175A patent/JPS5821715B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS525571A (en) | 1977-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1950729B1 (en) | Drive method for display device, drive device, display device, and electronic device | |
| US3987433A (en) | Electrochromic display driver having interleaved write and erase operations | |
| US4302751A (en) | Driver circuit for electrochromic displays | |
| JPS59107B2 (en) | Portable electronic device with electrochromic display | |
| TW201601137A (en) | Integrated circuit device and electronic device, and control method of photoelectric panel | |
| US20140071183A1 (en) | Method for driving electrophoretic display device, electrophoretic display device, electronic apparatus, and electronic timepiece | |
| US4173757A (en) | Liquid crystal display device | |
| US4246579A (en) | Electrochromic display switching and holding arrangement | |
| US3789388A (en) | Apparatus for providing a pulsed liquid crystal display | |
| US4219809A (en) | Compensation scheme for electrochromic displays | |
| JPS5821715B2 (en) | Display drive method | |
| JPH0523406B2 (en) | ||
| JPS5831553B2 (en) | Hyojikudo Houshiki | |
| US4242681A (en) | Driving system for display | |
| GB2014337A (en) | Electronic Timepiece | |
| JP2017161464A (en) | Electronic timepiece and control method of electronic timepiece | |
| JPS5815918Y2 (en) | Youbihiyoujisouchi | |
| JPH0442653B2 (en) | ||
| US20050248519A1 (en) | Method for driving a nematic liquid crystal | |
| JP5023688B2 (en) | Display method for electrophoretic display, drive control device, electrophoretic display, and electronic apparatus | |
| JPS5891499A (en) | Driving system of liquid crystal display | |
| JPH0830223A (en) | Electrochromic display device | |
| JPS6055394A (en) | Driving of electrically luminous display driving of electroluminescence display element | |
| JP2004309732A (en) | Driving method of liquid crystal display device | |
| JPH0446409B2 (en) |