WO1992006464A1 - Affichage a cristaux liquides - Google Patents

Affichage a cristaux liquides Download PDF

Info

Publication number
WO1992006464A1
WO1992006464A1 PCT/US1991/007080 US9107080W WO9206464A1 WO 1992006464 A1 WO1992006464 A1 WO 1992006464A1 US 9107080 W US9107080 W US 9107080W WO 9206464 A1 WO9206464 A1 WO 9206464A1
Authority
WO
WIPO (PCT)
Prior art keywords
displays
character
delineator
liquid crystal
crystal display
Prior art date
Application number
PCT/US1991/007080
Other languages
English (en)
Inventor
Douglas S. M. Sutherland
Habib Amirzadeh
Jose M. Aleman
Original Assignee
Motorola, Inc.
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 Motorola, Inc. filed Critical Motorola, Inc.
Publication of WO1992006464A1 publication Critical patent/WO1992006464A1/fr

Links

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
    • G09G3/04—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
    • G09G3/18—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 using liquid crystals

Definitions

  • This invention relates generally to liquid crystal displays (LCDs).
  • Liquid crystal displays have become common in portable communications equipment. As that equipment has become more sophisticated the LCDs used in them are required to display information relating to a greater variety of functions. However, the the number of character displays that fits on portable radios is limited. Thus, a need exists for more versatile LCDs that use the same number of character displays as prior portable radio LCDs to display a greater variety of information.
  • a liquid crystal display module comprises a plurality of character displays, at least one delineator display, and driver means coupled to the. character displays and to the delineator display(s).
  • the driver means comprises a first plurality of outputs for driving the character displays, and a second plurality of outputs for driving the delineator display(s).
  • Each delineator display forms a border for a set of character displays so that the character displays are separated into sets that each display different information.
  • Figure 1 shows a radio having a liquid crystal display in accordance with the invention.
  • Figure 2 shows an individual character of the liquid crystal display.
  • Figure 3 shows the liquid crystal display and a display driver.
  • the LCD module 12 includes fourteen character displays 14 and nine annunciator symbol displays 16.
  • the LCD glass contains three boxes (or "box-like" shapes) 20 that each enclose a set of four character displays, for a "soft key” type of menu structure.
  • a set of three buttons 18 correspond to first, second, and third sets of character displays, respectively.
  • the first set is defined by the first delineator 20 from the left.
  • the second set is defined by the middle delineator 20, and the third set is defined by the right-most delineator 20.
  • the display shows menu information relating to a mode of operation of the radio corresponding to that key.
  • the first button from the left on the radio 10 is pressed (i.e., the one corresponding to the first set of characters, which would read as "PHON") the information displayed would correspond to the phone mode.
  • an individual character display 14 is shown.
  • the character displays are five-by-seven arrays of dots or pixels 15.
  • the "sides" of the boxes 20 are formed with the fifth and tenth character displays in a manner similar to that for forming symbols in the character displays 14, and can be lit as if they were one pixel, or for example, the extreme left and right columns could be lit up in each the fifth and tenth character displays to delineate sets of character displays.
  • the dot 15 on the upper left corner of the display 14 represents a first symbol.
  • the dot below that represents a second symbol, and so forth until the lowest dot in the rightmost column represents the 35th symbol.
  • the LCD driver 30 is a character-only driver
  • the display 12 contains any number (up to fifteen or more, space permitting) of custom symbols, such as a low battery level indicator 22, a secure communication indicator ("PVT") 24, a
  • the boxes or delineators are formed by lighting up the fifth and tenth characters in such a manner so as to indicate a separation of the first four characters from the sixth through ninth characters, and a separation of the sixth through ninth characters from the eleventh though fourteenth characters.
  • the characters forming the boxes could be lit up as if they were one pixel.
  • the resulting four-character display sets each may display different information in one mode of operation, or all the character displays may display one item of information in another mode.
  • a display driver such as the H044780 only generates characters in a display such as the display 14.
  • some of the character displays may generate graphical boxes using the same number of bits as would be required to generate characters (e.g., eight bits), instead of the 35 bits that would normally be required to generate graphics in a 5x7 display such as display 14. All of the symbols and the boxes are mapped from one 5x7 location in the driver's pixel map, which is the 15th location(i.e., the dot 15' in Fig. 2). When any of these dots are lit in the driver's pixel map, the corresponding symbol on the display 14 is lit. This is accomplished by using the bit mapping CG RAM utility of the
  • the symbols displayed in the display 14 are arranged as common-column to save interconnections.

Abstract

Un module d'affichage à cristaux liquides comprend une pluralité d'affichages de caractères (14), une pluralité d'affichages délimiteurs (20), ainsi qu'un circuit de commande (3) couplé aux affichages de caractères (14) et aux affichages délimiteurs (20). Le moyen de commande (30) comprend une première pluralité de sorties destinées à commander les affichages de caractères, ainsi qu'une seconde pluralité de sorties destinées à commander les affichages délimiteurs. Chaque délimiteur (20) forme une limite pour un ensemble d'affichages de caractères (14) de sorte que ces derniers sont séparés en ensembles affichant chacun des informations différentes.
PCT/US1991/007080 1990-10-01 1991-09-26 Affichage a cristaux liquides WO1992006464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59075290A 1990-10-01 1990-10-01
US590,752 1990-10-01

Publications (1)

Publication Number Publication Date
WO1992006464A1 true WO1992006464A1 (fr) 1992-04-16

Family

ID=24363553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/007080 WO1992006464A1 (fr) 1990-10-01 1991-09-26 Affichage a cristaux liquides

Country Status (1)

Country Link
WO (1) WO1992006464A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815083A (en) * 1993-07-01 1998-09-29 Bull Cp8 Process for entry of a confidential piece of information and associated terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971012A (en) * 1973-06-18 1976-07-20 Citizen Watch Co., Ltd. Display device employing special-purpose monograms
US4091609A (en) * 1975-12-04 1978-05-30 Kabushiki Kaisha Daini Seikosha Digital electronic timepiece

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971012A (en) * 1973-06-18 1976-07-20 Citizen Watch Co., Ltd. Display device employing special-purpose monograms
US4091609A (en) * 1975-12-04 1978-05-30 Kabushiki Kaisha Daini Seikosha Digital electronic timepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815083A (en) * 1993-07-01 1998-09-29 Bull Cp8 Process for entry of a confidential piece of information and associated terminal

Similar Documents

Publication Publication Date Title
US5016002A (en) Matrix display
US7324072B1 (en) Pixel border for improved viewability of a display device
KR100573640B1 (ko) 액정표시제어장치
US7242369B2 (en) Method of displaying text on multiple display devices
US4803463A (en) Key input means with changeable display means for displaying key functions
JPS6037487B2 (ja) 多機能電子機器
US5896114A (en) Matrix type display device, electronic system including the same and method of driving such a display device
KR100275744B1 (ko) 그래픽 및 문자 혼용 lcd 구동 ic
KR880001872B1 (ko) 액정표시 캐랙터 발생회로
WO1992006464A1 (fr) Affichage a cristaux liquides
US4513282A (en) Liquid crystal matrix display device
GB2284694A (en) Multiple font display
US5323143A (en) Liquid crystal panel and liquid crystal display device
JP2570494B2 (ja) 表示付選択呼出受信機
JPH0628887U (ja) 表示装置
JP2907704B2 (ja) 表示装置
US5321421A (en) Portable electronic device capable of receiving and transmitting lower-case letter codes while displaying only upper-case letters
JPH0612047A (ja) Ｌｃｄ文字拡大表示方式
KR810001642B1 (ko) 소형 한글 표시용 디스 플레이 장치
JP2640135B2 (ja) 多項目情報入力装置
JPS595273A (ja) 液晶表示装置
KR100323749B1 (ko) 휴대폰의그림출력방법
JP3130898B2 (ja) 液晶表示制御システム及び携帯端末装置
KR940005931B1 (ko) 키폰에서의 한글 디스플레이 방법
JPH0643827A (ja) 文字表示装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): GB JP KR