JPS57165887A - Apparatus for gradient-free lighting of passive display unit equipped with light source and method of making same - Google Patents

Apparatus for gradient-free lighting of passive display unit equipped with light source and method of making same

Info

Publication number
JPS57165887A
JPS57165887A JP3818582A JP3818582A JPS57165887A JP S57165887 A JPS57165887 A JP S57165887A JP 3818582 A JP3818582 A JP 3818582A JP 3818582 A JP3818582 A JP 3818582A JP S57165887 A JPS57165887 A JP S57165887A
Authority
JP
Japan
Prior art keywords
gradient
light source
display unit
making same
unit equipped
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.)
Pending
Application number
JP3818582A
Other languages
Japanese (ja)
Inventor
Kunoru Peetaa
Keenitsuhi Buinfuriito
Tsuiikuraa Buorufugangu
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of JPS57165887A publication Critical patent/JPS57165887A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G09F9/35—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 being liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
JP3818582A 1981-03-13 1982-03-12 Apparatus for gradient-free lighting of passive display unit equipped with light source and method of making same Pending JPS57165887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3109643 1981-03-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP1120579A Division JPH02160280A (en) 1981-03-13 1989-05-16 Apparatus for lighting passive display

Publications (1)

Publication Number Publication Date
JPS57165887A true JPS57165887A (en) 1982-10-13

Family

ID=6127135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3818582A Pending JPS57165887A (en) 1981-03-13 1982-03-12 Apparatus for gradient-free lighting of passive display unit equipped with light source and method of making same

Country Status (2)

Country Link
JP (1) JPS57165887A (en)
DE (1) DE3145127C3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044076U (en) * 1983-08-31 1985-03-28 シャープ株式会社 Light box for display device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123369A1 (en) * 1981-06-12 1983-02-03 Vdo Schindling Optical waveguide
DE3302156C2 (en) * 1983-01-22 1989-11-23 Borg Instruments GmbH, 7537 Remchingen Lighting device for a transmissively operable passive display
DE3331724A1 (en) * 1983-09-02 1985-03-21 Robert Bosch Gmbh, 7000 Stuttgart ARRANGEMENT FOR LIGHTING PASSIVE INDICATORS
DE3543014A1 (en) * 1985-12-05 1987-06-11 Hinrichs Fotowerbung Gmbh LIGHTBOX FOR DIAPOSITIVE
DE3833960A1 (en) * 1988-10-06 1990-04-26 Karl Gerhard Luminous screen (light screen, illuminated disc)
DE4135506C2 (en) * 1991-10-28 1994-06-16 Triumph Adler Ag Backlit display device and method for manufacturing a diffusing sheet for such a display device
JP4501515B2 (en) * 2003-06-16 2010-07-14 株式会社デンソー Vehicle display device and display board thereof
DE102005011411A1 (en) * 2005-03-11 2006-09-14 Siemens Ag Luminous density distribution producing method for LCD-display, involves detecting and recording luminous density distribution of white picture, and detecting compensation picture from minimum luminous density and recorded distribution

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2384578A (en) * 1943-03-10 1945-09-11 Bausch & Lomb Optical element
DE854550C (en) * 1950-09-09 1952-11-06 Edmund Dr Germer Elongated high pressure metal vapor discharge tubes with uniform radiation emission and process for their manufacture
DE886581C (en) * 1951-07-17 1953-08-17 Siemens Ag Electric street lamp with a diffuser that is open at the bottom
CH389538A (en) * 1961-08-29 1965-03-31 Belmag Beleuchtungs & Metallin Lighting fixture with cover glass
US3241256A (en) * 1963-05-13 1966-03-22 Bendix Corp Method and means for integrally lighting an indicator with uniform brightness and with light conservation
US3833802A (en) * 1972-05-15 1974-09-03 Gen Electric Wide angle optical system for uniform planar illumination
DE2249572A1 (en) * 1972-10-10 1974-04-18 Werner Deiwiks LIGHT REFLECTORS TO ACHIEVE EVENLY ILLUMINATED AREAS WITHOUT LIGHT LOSS
DE2337314C3 (en) * 1973-07-23 1980-04-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Measuring element for detecting the direction of energy in an electrical network
DE2432279A1 (en) * 1974-07-05 1976-01-22 Andreas Dr Ing Braun Testing of HV power line - involves deriving test value, modulating it, transmitting it to low voltage side and demodulating
CH609194B5 (en) * 1976-05-20 1979-08-31 Ebauches Sa Electro-optical passive display device
CH618294A5 (en) * 1977-09-06 1980-07-15 Bbc Brown Boveri & Cie
US4157215A (en) * 1978-04-24 1979-06-05 Rca Corporation Photodeposition of CRT screen structures using cermet IC filter
US4206501A (en) * 1978-06-12 1980-06-03 Motorola, Inc. Apparatus and methods for back illuminating a display surface
DE3021003A1 (en) * 1980-05-30 1981-12-03 Siemens AG, 1000 Berlin und 8000 München Measuring flow direction in electrical power supply - using bias voltage for two pulse-generating comparators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044076U (en) * 1983-08-31 1985-03-28 シャープ株式会社 Light box for display device
JPH0125965Y2 (en) * 1983-08-31 1989-08-03

Also Published As

Publication number Publication date
DE3145127C2 (en) 1989-09-07
DE3145127A1 (en) 1982-09-23
DE3145127C3 (en) 1996-08-01

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