WO1999013627A1 - Emetteur de telecommunications, notamment un telephone mobile - Google Patents

Emetteur de telecommunications, notamment un telephone mobile Download PDF

Info

Publication number
WO1999013627A1
WO1999013627A1 PCT/DE1998/002124 DE9802124W WO9913627A1 WO 1999013627 A1 WO1999013627 A1 WO 1999013627A1 DE 9802124 W DE9802124 W DE 9802124W WO 9913627 A1 WO9913627 A1 WO 9913627A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
screen frame
circuit board
printed circuit
communication terminal
Prior art date
Application number
PCT/DE1998/002124
Other languages
German (de)
English (en)
Inventor
Reinhold Heiss
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1999013627A1 publication Critical patent/WO1999013627A1/fr

Links

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
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

Definitions

  • Co-communication terminal in particular a mobile phone
  • the present invention relates to a communication terminal, in particular a mobile phone, in which the components arranged on a circuit board are electromagnetically shielded by means of a screen frame which is applied directly to the circuit board.
  • This type of shielding of the components mounted on the circuit board is increasing because it has the advantage that the electrical function can be checked before the entire device is assembled.
  • the object of the present invention is to provide a communication terminal of the type mentioned in the introduction, in which a display can also be arranged in a space-saving manner above the screen frame.
  • the screen frame consists of a thin-walled, injection-molded, transparent plastic part which is completely metallized on the inside and outside, except in an area provided for a display, that light-emitting diodes are provided on the circuit board in the area of the display , which in openings of the Side walls of the screen frame protrude, and that the display is attached above the surface provided on the top of the screen frame.
  • a display can also be arranged in a space-saving manner above a screen frame, since it is attached directly to the screen frame. This is made possible by the fact that the screen frame, in addition to its screen function, takes on the function of a light guide.
  • FIG. 1 shows a cross section through an arrangement consisting of printed circuit board, screen frame and display, in a communication terminal according to the present invention
  • FIG. 2 shows a plan view of a screen frame with a display arranged thereon in a communication terminal in accordance with the present invention
  • Figure 3 shows the detail E of Figure 1 in an enlarged view.
  • the components or assemblies (not shown) to be shielded by means of the screen frame 1 are located on a circuit board 3 in the interior of the mobile phone.
  • the screen frame 1 is applied EMC-tight directly to the printed circuit board 3.
  • the umbrella frame 1 has essentially the shape of a trough.
  • the screen frame 1 consists of a thin-walled, injection-molded transparent plastic part. This plastic part is completely metallized on its inner surface in order to achieve the required EMC protection. In addition, the outer surface of the screen frame 1, with the exception of the area provided for a display 2, is also metallized.
  • a connecting ribbon cable (not shown) runs from an upper or lower transverse side of the display 2 to a corresponding connection on the printed circuit board 3, via which the display 2 is supplied with the information to be displayed.
  • Openings, e.g. B. blind holes, for receiving the LEDs 4 are provided below the area for the display 2 provided on the surface of the screen frame 1 .
  • the light-emitting diodes 4 are completely surrounded by the transparent plastic of the screen frame 1.
  • the light beams 7 emitted by the light-emitting diodes 4 are guided to the area provided for the display 2 by multiple reflections at the material boundaries.
  • the area of The surface of the screen frame 1 below the display 2 can have a special structure for strengthening the refraction and guiding of light.
  • the screen frame 1 can have a certain angle (not shown) in the area of the display.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

L'invention concerne un émetteur de télécommunications, notamment un téléphone mobile. Les composants placés sur une carte de circuits imprimés sont protégés des ondes électromagnétiques par un cadre de blindage directement posé sur la carte de circuits imprimés. Pour obtenir un émetteur plat, le cadre de blindage (1) est composé d'une pièce en matière plastique transparente moulée par injection sous la forme d'une mince paroi. Cette pièce est entièrement métallisée à l'intérieur. Quant à l'extérieur, elle est métallisée à l'exception d'une zone destinée à l'afficheur (2). Des diodes électroluminescentes (4) placées dans la zone de l'afficheur (2) de la carte de circuits imprimés (1), pénètrent dans des trous pratiqués dans les parois latérales du cadre de blindage lorsque ce dernier est posé.
PCT/DE1998/002124 1997-09-05 1998-07-27 Emetteur de telecommunications, notamment un telephone mobile WO1999013627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19738981 1997-09-05
DE19738981.3 1997-09-05

Publications (1)

Publication Number Publication Date
WO1999013627A1 true WO1999013627A1 (fr) 1999-03-18

Family

ID=7841382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/002124 WO1999013627A1 (fr) 1997-09-05 1998-07-27 Emetteur de telecommunications, notamment un telephone mobile

Country Status (1)

Country Link
WO (1) WO1999013627A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041798A1 (fr) * 1999-04-02 2000-10-04 Sagem Sa Appareil téléphonique mobile à écoute amplifiée
GB2364158A (en) * 2000-02-18 2002-01-16 Sensei Ltd LCD with Backlight and EMI shielding
CN110456571A (zh) * 2019-08-12 2019-11-15 Oppo（重庆）智能科技有限公司 显示组件及终端设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310889A2 (fr) * 1987-10-09 1989-04-12 Andreas Peiker Dispositif d'affichage comprenant plusieurs sources de lumière
WO1992014345A1 (fr) * 1991-02-04 1992-08-20 Motorola, Inc. Clavier
EP0526182A2 (fr) * 1991-07-30 1993-02-03 Honeywell Control Systems Ltd. Support pour LCD
JPH06347786A (ja) * 1991-03-29 1994-12-22 Toshiba Corp シールドケース及び電子部品の実装構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310889A2 (fr) * 1987-10-09 1989-04-12 Andreas Peiker Dispositif d'affichage comprenant plusieurs sources de lumière
WO1992014345A1 (fr) * 1991-02-04 1992-08-20 Motorola, Inc. Clavier
JPH06347786A (ja) * 1991-03-29 1994-12-22 Toshiba Corp シールドケース及び電子部品の実装構造
EP0526182A2 (fr) * 1991-07-30 1993-02-03 Honeywell Control Systems Ltd. Support pour LCD

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 003 28 April 1995 (1995-04-28) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041798A1 (fr) * 1999-04-02 2000-10-04 Sagem Sa Appareil téléphonique mobile à écoute amplifiée
FR2791833A1 (fr) * 1999-04-02 2000-10-06 Sagem Appareil telephonique mobile a ecoute amplifiee
GB2364158A (en) * 2000-02-18 2002-01-16 Sensei Ltd LCD with Backlight and EMI shielding
GB2364158B (en) * 2000-02-18 2004-01-07 Sensei Ltd Mobile telephone with LCD module with backlight and EMI shielding
CN110456571A (zh) * 2019-08-12 2019-11-15 Oppo（重庆）智能科技有限公司 显示组件及终端设备
CN110456571B (zh) * 2019-08-12 2022-11-08 Oppo（重庆）智能科技有限公司 显示组件及终端设备

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