EP0026454B1 - Integrierbarer Ansteuerbaustein für passive elektrooptische Displays - Google Patents

Integrierbarer Ansteuerbaustein für passive elektrooptische Displays Download PDF

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Publication number
EP0026454B1
EP0026454B1 EP80105753A EP80105753A EP0026454B1 EP 0026454 B1 EP0026454 B1 EP 0026454B1 EP 80105753 A EP80105753 A EP 80105753A EP 80105753 A EP80105753 A EP 80105753A EP 0026454 B1 EP0026454 B1 EP 0026454B1
Authority
EP
European Patent Office
Prior art keywords
control circuit
outputs
inputs
switches
analogue signal
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
Application number
EP80105753A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0026454A3 (en
EP0026454A2 (de
Inventor
Karl-Heinz Dipl.-Ing. Walter
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0026454A2 publication Critical patent/EP0026454A2/de
Publication of EP0026454A3 publication Critical patent/EP0026454A3/de
Application granted granted Critical
Publication of EP0026454B1 publication Critical patent/EP0026454B1/de
Expired legal-status Critical Current

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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
    • G09G3/34—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 by control of light from an independent source
    • 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
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/06—Passive matrix structure, i.e. with direct application of both column and row voltages to the light emitting or modulating elements, other than LCD or OLED
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes
    • 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 invention relates to a control module according to the preamble of claim 1.
  • a multiplex driver is known from electronics 4 (1978) 117.
  • control modules for multiplexable displays were generally designed in such a way that they could be connected either only to the columns or only to the rows of the electrode matrix and also required a number of additional units such as pulse generators.
  • the module was given only a few output drivers and, if necessary, connected to other units to form a cascade; for example, the driver of the cited reference has eight outputs. It is obvious that with such an integration concept, the control circuit takes up a relatively large amount of space and is comparatively expensive. These disadvantages are particularly important when the display device has to process large amounts of information.
  • the aim of the invention is therefore to design an integrated circuit unit which can control both the rows and the columns of a conductor matrix, is relatively simple in construction and manages with a minimum of peripheral components. According to the invention, this object is achieved by a circuit arrangement having the features of patent claim 1.
  • the proposed switching part offers a number of advantages: the two predefined groups of n or m drivers give the possibility of optionally up to n + m rows, up to n + m columns, up to n columns and m rows or up to m columns and to supply voltage to n lines.
  • the values n and m will be chosen so large that the control module can be used for the most common applications.
  • Connections 101 to 105 receive the data for shift register 2, connection 106 the activation signal for chip selector 5, connection 107 the takeover clock signal (strobe signal) for shift register 2, connection 108 the shift clock signal (clock signal) for the Data input (maximum 1 MHz), connection 109 a strobe signal for switching register 3, connection 110 the switchover signal for pulse generator 6 (max.
  • the pulse generator 6 is periodically blocked by a blocking pulse (“disable” signal) entered via the connection 117.
  • the duration of exposure is based on the relationship
  • the invention is not restricted to the exemplary embodiment. It may be advisable to give the two driver groups different n and / or different m values. However, the groups should each include so many drivers that the most common matrix formats can be mastered and as few drivers as possible remain redundant. Otherwise, the person skilled in the art is free to choose the manner in which he sets the potentiometer 17, the switch-off time t or the switching position of the selection switches. Appropriately, all variables - for example also the optimal voltage levels for a predetermined number of multiplex steps - are programmed by a microprocessor.

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)
EP80105753A 1979-09-27 1980-09-24 Integrierbarer Ansteuerbaustein für passive elektrooptische Displays Expired EP0026454B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792939235 DE2939235A1 (de) 1979-09-27 1979-09-27 Integrierbarer ansteuerbaustein fuer passive elektrooptische displays
DE2939235 1979-09-27

Publications (3)

Publication Number Publication Date
EP0026454A2 EP0026454A2 (de) 1981-04-08
EP0026454A3 EP0026454A3 (en) 1982-05-12
EP0026454B1 true EP0026454B1 (de) 1984-12-27

Family

ID=6082053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105753A Expired EP0026454B1 (de) 1979-09-27 1980-09-24 Integrierbarer Ansteuerbaustein für passive elektrooptische Displays

Country Status (4)

Country Link
US (1) US4392131A (enrdf_load_stackoverflow)
EP (1) EP0026454B1 (enrdf_load_stackoverflow)
JP (1) JPS5659290A (enrdf_load_stackoverflow)
DE (1) DE2939235A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144594A (en) * 1981-03-03 1982-09-07 Canon Kk Liquid crystal driving system
US4553143A (en) * 1982-07-12 1985-11-12 Sperry Corporation Low cost panel display addressing structure
JPS6373228A (ja) * 1986-09-17 1988-04-02 Canon Inc 光学変調素子の駆動法
US4823284A (en) * 1987-11-16 1989-04-18 Xerox Corporation High speed VLSI based serial to multiplexed data translator
KR20070016873A (ko) 2005-08-05 2007-02-08 삼성전자주식회사 백라이트 유닛, 이를 포함하는 디스플레이장치 및 그제어방법
CN101847366B (zh) * 2009-03-27 2011-10-12 龙亭新技股份有限公司 非挥发性显示模块以及非挥发性显示装置
TW201108175A (en) * 2009-08-27 2011-03-01 Gigno Technology Co Ltd Non-volatile display module and non-volatile display apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634849A (en) * 1966-02-19 1972-01-11 Semiconductor Res Found Signal collecting and distributing systems
US3668688A (en) * 1969-12-29 1972-06-06 Owens Illinois Inc Gas discharge display and memory panel having addressing and interface circuits integral therewith
US3792465A (en) * 1971-12-30 1974-02-12 Texas Instruments Inc Charge transfer solid state display
US3862360A (en) * 1973-04-18 1975-01-21 Hughes Aircraft Co Liquid crystal display system with integrated signal storage circuitry

Also Published As

Publication number Publication date
JPS5659290A (en) 1981-05-22
EP0026454A3 (en) 1982-05-12
EP0026454A2 (de) 1981-04-08
US4392131A (en) 1983-07-05
DE2939235C2 (enrdf_load_stackoverflow) 1990-11-08
DE2939235A1 (de) 1981-04-09

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