DE202005012778U1 - Backlighting module for LCD unit, has plate spreading penetrated light that is guided through reflecting layer to area between plate and reflection membrane to reflect light by membrane, where light penetrates plate and spreads uniformly - Google Patents
Backlighting module for LCD unit, has plate spreading penetrated light that is guided through reflecting layer to area between plate and reflection membrane to reflect light by membrane, where light penetrates plate and spreads uniformly Download PDFInfo
- Publication number
- DE202005012778U1 DE202005012778U1 DE200520012778 DE202005012778U DE202005012778U1 DE 202005012778 U1 DE202005012778 U1 DE 202005012778U1 DE 200520012778 DE200520012778 DE 200520012778 DE 202005012778 U DE202005012778 U DE 202005012778U DE 202005012778 U1 DE202005012778 U1 DE 202005012778U1
- Authority
- DE
- Germany
- Prior art keywords
- plate
- light
- light guide
- backlight module
- membrane
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Technischer Bereichtechnical Area
Diese Erfindung betrifft einen verbesserten Aufbau des Hintergrundbeleuchtungsmoduls für LCD-Anzeigen, insbesondere eines Hintergrundbeleuchtungsmoduls mit gleichmäßigem und ausreichendem Licht.These The invention relates to an improved construction of the backlight module for LCD displays, in particular, a backlight module with even and sufficient light.
Stand der TechnikState of technology
Bilder und Schrift werden auf einer LCD-Anzeige durch den Helligkeitsunterschied zwischen LCD-Anzeige und der Hintergrundbeleuchtung der LCD-Anzeige sichtbar. Deshalb beeinflusst die Qualität (Helligkeit, Gleichmäßigkeit) der Hintergrundbeleuchtung direkt die Anzeigequalität der LCD-Anzeige.images and font are displayed on an LCD screen by the brightness difference between the LCD display and the backlight of the LCD display visible, noticeable. Therefore the quality (brightness, uniformity) influences the backlight directly the display quality of the LCD display.
Es
gibt zwei konventionelle Arten von Hintergrundbeleuchtungsmodulen
für LCD-Anzeigen:
1.
An der Rückseite
der LCD-Anzeige befinden sich am Rand gleichmäßig mehrere Punktlichtquellen
(z. B. LEDs). Das Licht dieser Punktlichtquellen bildet direkt hinter
der LCD-Anzeige die Hintergrundbeleuchtung; 2. Kaltes Kathodenrohr
als Lichtquelle. Das kalte Kathodenrohr ist an der Rückseite
der LCD-Anzeige installiert. Die Hintergrundbeleuchtung ergibt sich aus
seiner linieförmigen
Lichtquelle.There are two conventional types of backlight modules for LCD displays:
1. At the back of the LCD display are located at the edge evenly several point light sources (eg LEDs). The light of these point light sources forms the backlight directly behind the LCD display; 2. Cold cathode tube as a light source. The cold cathode tube is installed on the back of the LCD. The backlight results from its line-shaped light source.
Je größer die LCD-Anzeige aber wird, umso mehr zeigen sich die Nachteile der oben genannten konventionellen Hintergrundbeleuchtungsmodule:
- 1. Das kalte Kathodenrohr und die Punktlichtquelle (weiße LED) befinden sich am Rand der LCD-Anzeige, und ihre Helligkeit ist begrenzt. Werden diese Module bei einer großen LCD-Anzeige eingebaut, reicht die Helligkeit in der Mitte der LCD- Anzeige nicht mehr aus.
- 2. Das kalte Katoderohr hat eine kurze Lebensdauer, muss häufig ersetzt werden und ist aus diesem Grund nicht wirtschaftlich.
- 1. The cold cathode tube and the point light source (white LED) are at the edge of the LCD, and their brightness is limited. If these modules are installed in a large LCD display, the brightness in the middle of the LCD display is no longer sufficient.
- 2. The cold cathode tube has a short life span, needs to be replaced frequently and is therefore not economical.
Um diese Nachteile zu überwinden, hat der Erfinder dieses verbesserte Modul entwickelt.Around to overcome these disadvantages the inventor has developed this improved module.
Inhalt der ErfindungContent of invention
Ziel dieser Erfindung ist, ein verbessertes Hintergrundbeleuchtungsmodul anzubieten, das eine gleichmäßige und starke Helligkeit erzeugt, damit die Produkte konkurrenzfähiger werden.aim This invention is an improved backlight module to offer that a uniform and produces strong brightness for the products to become more competitive.
Die neue Erfindung besteht aus einer Weiterverbreitungsplatte, einer Reflexmembran und einer Lichtleitsäule für komplexe Zahlen. Auf der Rückseite der LCD-Anzeige wird die Weiterverbreitungsplatte angebaut, auf deren Rückseite die Reflexmembran installiert wird. Zwischen den beiden Bauteilen ist ein bestimmter Abstand einzuhalten. Die Lichtleitsäule für komplexe Zahlen liegt direkt oder indirekt zwischen den beiden Bauteilen. An beiden Enden der Lichtleitsäule befindet sich je mindestens eine Lichtquelle. In der Lichtleitsäule ist eine einheitliche bogenförmige, reflektierende Schicht vorgesehen. Das von dieser Quelle ausgehende Licht wird von der reflektierenden Schicht der Lichtsäule so geleitet, dass es zwischen der Weiterverbreitungsplatte und der Reflexmembran gleichmäßig leuchtet. Durch die Reflexion der Reflexmembran erreicht das Licht die Weiterverbreitungsplatte. Das Licht kann direkt oder durch die Reflexion der Starklichtmembran die Weiterverbreitungsplatte durchdringen. Das ist die Hintergrundbeleuchtung der LCD-Anzeige.The new invention consists of a Weiterverbreitungsplatte, a Reflex membrane and a light guide for complex numbers. On the Back of the LCD display, the retransmission plate is mounted on the back the reflex membrane is installed. Between the two components a certain distance is to be kept. The light guide for complex Numbers lie directly or indirectly between the two components. At both ends of the light guide there is at least one light source each. In the light guide is a uniform arched, reflective layer provided. The source of this source Light is directed by the reflective layer of the light column, that it is between the retransmission plate and the reflex membrane evenly lit. Due to the reflection of the reflex membrane, the light reaches the retransmission plate. The light can be direct or through the reflection of the strong light membrane penetrate the retransmission plate. This is the backlight the LCD display.
Im folgenden Text werden anhand der Abbildungen der ausführliche Aufbau, das Prinzip, die Funktion und Wirkung erläutet:in the The following text will be detailed on the basis of the illustrations Structure, principle, function and effect:
Kurze Erläuterung der AbbildungenShort explanation of the pictures
Ausführungsformenembodiments
Für die erste
Ausführungsform
finden Sie in
In
dieser Ausführungsform
steht die reflektierende Schicht
Für Ausführungsform
Für Ausführungsform
Für Ausführungsform
Für Ausführungsform
In
diesem Beispiel werden Lichtleitsäulen
In
Für Ausführungsform
Für Ausführungsform
In einem Wort, diese neue, verbesserte Hintergrundbeleuchtungsmodul für LCD-Anzeigen leuchtet tatsächlich heller und gleichmäßiger. Es ist ein fortschrittliches und innovatives Produkt, das praktisch angewendet werden kann.In one word, this new, improved backlight module for LCD displays is lit. indeed brighter and smoother. It is an advanced and innovative product that is practical can be applied.
- 1.101.10
- WeiterverbreitungsplatteProliferation plate
- 2.202.20
- Reflexmembranreflex membrane
- 3. 30. 17Third 30. 17
- LichtleitsäuleLichtleitsäule
- 31. 301. 17131st 301. 171
- Reflektierende Schichtreflective layer
- 172172
- Reflexklebebandreflective tape
- 3232
- Bogenförmige, konkave BohrungArched, concave drilling
- 320320
- Kegelförmige, konkave BohrungConical, concave drilling
- 44
- Lichtquellelight source
- 4141
- Grundplattebaseplate
- 4242
- Durchbohrungperforation
- 55
- LCD-AnzeigeLCD display
- 66
- Lichtleitplattelight guide plate
- 77
- StarklichtmembranStrong light membrane
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200520012778 DE202005012778U1 (en) | 2005-08-12 | 2005-08-12 | Backlighting module for LCD unit, has plate spreading penetrated light that is guided through reflecting layer to area between plate and reflection membrane to reflect light by membrane, where light penetrates plate and spreads uniformly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200520012778 DE202005012778U1 (en) | 2005-08-12 | 2005-08-12 | Backlighting module for LCD unit, has plate spreading penetrated light that is guided through reflecting layer to area between plate and reflection membrane to reflect light by membrane, where light penetrates plate and spreads uniformly |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202005012778U1 true DE202005012778U1 (en) | 2006-01-05 |
Family
ID=35613220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200520012778 Expired - Lifetime DE202005012778U1 (en) | 2005-08-12 | 2005-08-12 | Backlighting module for LCD unit, has plate spreading penetrated light that is guided through reflecting layer to area between plate and reflection membrane to reflect light by membrane, where light penetrates plate and spreads uniformly |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202005012778U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1852720A2 (en) * | 2006-04-20 | 2007-11-07 | Pyratec Produktion GmbH & Co. KG | Laminar illumination element |
DE102012112763A1 (en) * | 2012-12-20 | 2014-06-26 | Osram Opto Semiconductors Gmbh | lighting device |
-
2005
- 2005-08-12 DE DE200520012778 patent/DE202005012778U1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1852720A2 (en) * | 2006-04-20 | 2007-11-07 | Pyratec Produktion GmbH & Co. KG | Laminar illumination element |
EP1852720A3 (en) * | 2006-04-20 | 2007-11-14 | Pyratec Produktion GmbH & Co. KG | Laminar illumination element |
DE102012112763A1 (en) * | 2012-12-20 | 2014-06-26 | Osram Opto Semiconductors Gmbh | lighting device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20060209 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20090303 |