DE29613292U1 - Mobile phone - Google Patents
Mobile phoneInfo
- Publication number
- DE29613292U1 DE29613292U1 DE29613292U DE29613292U DE29613292U1 DE 29613292 U1 DE29613292 U1 DE 29613292U1 DE 29613292 U DE29613292 U DE 29613292U DE 29613292 U DE29613292 U DE 29613292U DE 29613292 U1 DE29613292 U1 DE 29613292U1
- Authority
- DE
- Germany
- Prior art keywords
- transparent cover
- display
- mobile phone
- telephone
- metal layer
- 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
- 239000006117 anti-reflective coating Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Description
Die Erfindung betrifft ein Telefon, insbes. ein Mobiltelefon mit einem Anzeigedisplay und mit einer transparenten Abdeckung für das Anzeigedisplay.The invention relates to a telephone, in particular a mobile telephone with a display and with a transparent cover for the display.
Bei derartigen Mobiltelefonen, die auch als Handy bezeichnet werden, dient die transparente Abdeckung insbes. zum Schutz des Anzeigedisplay's gegen Einwirkungen von außen. Üblicherweise ist die transparente Abdeckung gewölbt ausgebildet, um einen geeigneten optischen Linseneffekt zu bewirken, um das Anzeigedisplay besser ablesen zu können. Diese Ablesbarkeit wird jedoch oftmals durch Lichtreflexionen an der transparenten Abdeckung beeinträchtigt. Derartige Lichtreflexionen treten bei bestimmten Positionen des Mobiltelefons in bezug auf das Umgebungslicht auf.In such mobile phones, which are also referred to as cell phones, the transparent cover serves in particular to protect the display against external influences. The transparent cover is usually curved in order to create a suitable optical lens effect in order to be able to read the display better. However, this readability is often impaired by light reflections on the transparent cover. Such light reflections occur when the mobile phone is in certain positions in relation to the ambient light.
Der Erfindung liegt die Aufgabe zugrunde, ein Telefon der eingangs genannten Art zu schaffen, bei welchem die Ablesbarkeit auch unter bislang ungünstigen Lichteinfallsverhältnissen verbessert ist.The invention is based on the object of creating a telephone of the type mentioned at the beginning, in which the readability is improved even under previously unfavorable lighting conditions.
Diese Aufgabe wird bei einem Telefon der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß seine transparente Abdeckung mit einer Entspiegelung ausgebildet ist.This object is achieved according to the invention in a telephone of the type mentioned at the outset in that its transparent cover is designed with an anti-reflective coating.
Wie bspw. im "Lexikon der Physik", Franckh'sche Verlagshandlung, Stuttgart, Seite 1069 beschrieben ist, gibt es zwei Möglichkeiten, um eine Oberfläche zu entspiegeln, nämlich die reflektierende Grenzfläche mit einer dünnen durchsichtigen Schicht zu bedecken, deren Brechungsquotient allmählich von dem der Luft in denjenigen der Trägersubstanz, d.h. im vorliegenden Fall der transparenten Abdeckung, übergeht, oder auf die reflektierende Grenzfläche eine durchsichtige Interferenzschicht aufzubringen. Erfindungsgemäß ist es bevorzugt, wenn die Entspiegelung durch eine Metalldünnschicht gebildet ist.As described, for example, in the "Lexikon der Physik", Franckh'sche Verlagshandlung, Stuttgart, page 1069, there are two ways to make a surface anti-reflective, namely to cover the reflective interface with a thin transparent layer whose refractive index gradually changes from that of the air to that of the carrier substance, i.e. in this case the transparent cover, or to apply a transparent interference layer to the reflective interface. According to the invention, it is preferred if the anti-reflective coating is formed by a thin metal layer.
Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung eines in der Zeichnung dargestellten Ausführungsbeispieles eines erfindungsgemäßen Telefons. Die Zeichnung zeigt ein Mobiltelefon 10 mit einer Tastatur 12, sowie einem Anzeigedisplay 14, das von einer transparenten Abdeckung 16 überdeckt ist. Die transparente Abdeckung 16 aus einem geeigneten Kunststoffmaterial dient zum Schutz des Anzeigedisplay's 14 gegen Einwirkungen von außen. Das Anzeigedisplay ist vorzugsweise als LCD ausgebildet.Further details, features and advantages emerge from the following description of an embodiment of a telephone according to the invention shown in the drawing. The drawing shows a mobile telephone 10 with a keypad 12 and a display 14 which is covered by a transparent cover 16. The transparent cover 16 made of a suitable plastic material serves to protect the display 14 against external influences. The display is preferably designed as an LCD.
Um störende Lichtreflexionen, welche die Ablesbarkeit des Anzeigedisplay's 14 beeinträchtigen, zu vermeiden, ist die transparente Abdeckung 16 mit einer Entspiegelung 18 ausgebildet, die durch eine Metalldünnschicht 20 gebildet ist. Die Metalldünnschicht 20 kann auf die transparente Abdeckung flächig durch Vakuumverdampfung, Kathodenzerstäubung o.dgl. aufgebracht sein.In order to avoid disturbing light reflections, which impair the readability of the display 14, the transparent cover 16 is designed with an anti-reflective coating 18, which is formed by a thin metal layer 20. The thin metal layer 20 can be applied to the transparent cover in a flat manner by vacuum evaporation, cathode sputtering or the like.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29613292U DE29613292U1 (en) | 1996-08-01 | 1996-08-01 | Mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29613292U DE29613292U1 (en) | 1996-08-01 | 1996-08-01 | Mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29613292U1 true DE29613292U1 (en) | 1996-10-02 |
Family
ID=8027255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29613292U Expired - Lifetime DE29613292U1 (en) | 1996-08-01 | 1996-08-01 | Mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29613292U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013396A1 (en) * | 1998-12-22 | 2000-06-28 | Nokia Mobile Phones Ltd. | Display window |
| EP1136973A1 (en) * | 1999-09-06 | 2001-09-26 | Seiko Epson Corporation | Cover glass |
| GB2364445A (en) * | 2000-05-08 | 2002-01-23 | Yoshida Kogyo Kk | Protective panel for display window of an electronic device |
-
1996
- 1996-08-01 DE DE29613292U patent/DE29613292U1/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013396A1 (en) * | 1998-12-22 | 2000-06-28 | Nokia Mobile Phones Ltd. | Display window |
| US6273573B1 (en) | 1998-12-22 | 2001-08-14 | Nokia Mobile Phone Limited | Display window |
| EP1136973A1 (en) * | 1999-09-06 | 2001-09-26 | Seiko Epson Corporation | Cover glass |
| EP1136973A4 (en) * | 1999-09-06 | 2005-03-09 | Seiko Epson Corp | Cover glass |
| GB2364445A (en) * | 2000-05-08 | 2002-01-23 | Yoshida Kogyo Kk | Protective panel for display window of an electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19961114 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20000701 |