DE3642288C1 - Electrical balance having an LCD display with brightness control - Google Patents

Electrical balance having an LCD display with brightness control

Info

Publication number
DE3642288C1
DE3642288C1 DE19863642288 DE3642288A DE3642288C1 DE 3642288 C1 DE3642288 C1 DE 3642288C1 DE 19863642288 DE19863642288 DE 19863642288 DE 3642288 A DE3642288 A DE 3642288A DE 3642288 C1 DE3642288 C1 DE 3642288C1
Authority
DE
Germany
Prior art keywords
light
lcd display
sensitive component
light source
brightness
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
DE19863642288
Other languages
German (de)
English (en)
Inventor
Erich Knothe
Franz-Josef Melcher
Christian Oldendorf
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.)
Sartorius AG
Original Assignee
Sartorius 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 Sartorius AG filed Critical Sartorius AG
Priority to DE19863642288 priority Critical patent/DE3642288C1/de
Priority to DE8716295U priority patent/DE8716295U1/de
Priority to CH483787A priority patent/CH673156A5/de
Priority to JP62312380A priority patent/JPH0625677B2/ja
Application granted granted Critical
Publication of DE3642288C1 publication Critical patent/DE3642288C1/de
Expired legal-status Critical Current

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • 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
    • G09G3/3406—Control of illumination 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination 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
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Indicating Measured Values (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
DE19863642288 1986-12-11 1986-12-11 Electrical balance having an LCD display with brightness control Expired DE3642288C1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19863642288 DE3642288C1 (en) 1986-12-11 1986-12-11 Electrical balance having an LCD display with brightness control
DE8716295U DE8716295U1 (de) 1986-12-11 1987-12-10 Elektrische Waage mit einer LCD-Anzeige mit Helligkeitsregelung
CH483787A CH673156A5 (enrdf_load_stackoverflow) 1986-12-11 1987-12-11
JP62312380A JPH0625677B2 (ja) 1986-12-11 1987-12-11 輝度調整機能を備えたｌｃｄ−表示器を有する電気秤

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863642288 DE3642288C1 (en) 1986-12-11 1986-12-11 Electrical balance having an LCD display with brightness control

Publications (1)

Publication Number Publication Date
DE3642288C1 true DE3642288C1 (en) 1988-06-09

Family

ID=6315938

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863642288 Expired DE3642288C1 (en) 1986-12-11 1986-12-11 Electrical balance having an LCD display with brightness control

Country Status (3)

Country Link
JP (1) JPH0625677B2 (enrdf_load_stackoverflow)
CH (1) CH673156A5 (enrdf_load_stackoverflow)
DE (1) DE3642288C1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19524605A1 (de) * 1995-07-06 1997-01-16 Bosch Gmbh Robert Verfahren zum Einstellen der Helligkeit einer Anzeige sowie Autoradiogerät
GB2410827A (en) * 2004-02-06 2005-08-10 Pelikon Ltd Ambient light sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422797A (en) * 1977-07-21 1979-02-20 Seiko Epson Corp Liquid crystal display unit
DE8002723U1 (de) * 1980-02-02 1980-06-04 Sartorius Gmbh, 3400 Goettingen Elektronische waage mit digitalanzeige

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48107067U (enrdf_load_stackoverflow) * 1972-03-17 1973-12-12
JPS5491090U (enrdf_load_stackoverflow) * 1977-12-09 1979-06-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422797A (en) * 1977-07-21 1979-02-20 Seiko Epson Corp Liquid crystal display unit
DE8002723U1 (de) * 1980-02-02 1980-06-04 Sartorius Gmbh, 3400 Goettingen Elektronische waage mit digitalanzeige

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19524605A1 (de) * 1995-07-06 1997-01-16 Bosch Gmbh Robert Verfahren zum Einstellen der Helligkeit einer Anzeige sowie Autoradiogerät
DE19524605B4 (de) * 1995-07-06 2004-12-09 Robert Bosch Gmbh Verfahren zum Einstellen der Helligkeit einer Anzeige sowie Autoradiogerät
DE19524605C5 (de) * 1995-07-06 2009-10-15 Robert Bosch Gmbh Verfahren zum Einstellen der Helligkeit einer Anzeige sowie Autoradiogerät
GB2410827A (en) * 2004-02-06 2005-08-10 Pelikon Ltd Ambient light sensor

Also Published As

Publication number Publication date
CH673156A5 (enrdf_load_stackoverflow) 1990-02-15
JPS63191022A (ja) 1988-08-08
JPH0625677B2 (ja) 1994-04-06

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SARTORIUS AG, 3400 GOETTINGEN, DE

8339 Ceased/non-payment of the annual fee