WO2007024334A1 - Detecteur a infrarouge pour unite d'affichage mobile - Google Patents

Detecteur a infrarouge pour unite d'affichage mobile Download PDF

Info

Publication number
WO2007024334A1
WO2007024334A1 PCT/US2006/025570 US2006025570W WO2007024334A1 WO 2007024334 A1 WO2007024334 A1 WO 2007024334A1 US 2006025570 W US2006025570 W US 2006025570W WO 2007024334 A1 WO2007024334 A1 WO 2007024334A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
openings
mobile display
infrared detector
display
Prior art date
Application number
PCT/US2006/025570
Other languages
English (en)
Inventor
Eric Andrew Dorsey
Jesse Arnold Fourt
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of WO2007024334A1 publication Critical patent/WO2007024334A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/08—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
    • H01L31/10—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
    • H01L31/101—Devices sensitive to infrared, visible or ultraviolet radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02162—Coatings for devices characterised by at least one potential jump barrier or surface barrier for filtering or shielding light, e.g. multicolour filters for photodetectors

Definitions

  • This invention relates to a mobile display and, more particularly to a mobile display having an infrared detector.
  • Mobile displays such as, mobile television displays, typically include an infrared receiver.
  • the infrared receiver is disposed behind an infrared transparent window in the front of the display.
  • Some displays have hidden the infrared detector behind a vacuum metallized plastic ring.
  • the operational distance for a remote control to an infrared detector hidden behind a vacuum metallized plastic ring is only about 4 meters. This short distance is because the vacuum metallized ring is not transmissive enough.
  • the present invention relates to a mobile display including an infrared detector positioned behind a filter on the front of the display.
  • the filter is covered with a layer of material having. one or more openings therein.
  • the one or more openings have any shape and be of a varying size.
  • FIG. 1 is a front view of a mobile display including a hidden infrared detector of the present invention
  • FIG. 2 illustrates a filter of the present invention behind which the infrared detector is hidden.
  • FIG. 1 shows a front view of a mobile display 1.
  • the mobile display 1 includes a display screen 10 and an infrared detector 20.
  • the infrared detector 20 is hidden behind a filter 30.
  • the filter 30, shown in FIG. 2 may have a variable shape, such as for example round, square, rectangular, triangular, ring and oval, among others.
  • the size of the filter is also variable and is dependent on the size of the display screen.
  • the filter is made of an infrared transparent material, such as for example, polyethylene terephthalate (PET) and polyvinylchloride (PVC), among others.
  • the filter 30 is covered with a layer of material 35 having one or more openings 40 therein.
  • the material layer 35 covering portions of the filter 30 is not transparent to infrared radiation. As such, infrared radiation will not be transmitted through portions of the filter 30 covered with the material layer 35.
  • black paint may be used as the material layer 35 to cover portions of the filter 30.
  • the one or more openings 40 may have a variable shape, such as for example round, square, rectangular, triangular, ring and oval, among others.
  • the size of the openings is also variable and is dependent on the size of the filter.
  • the size of each opening is preferably less than about 5 mm 2 .
  • the positioning of the one or more openings 40 on the filter is also variable.
  • the filter 30 is ring-shaped.
  • the one or more openings 40 are positioned at different locations around the ring-shaped filter 30.
  • Round openings 50 of various diameters are positioned at 12 (3 mm); 1 :30 ⁇ 2.5 mm); 3 (2 mm); 4:30 (1.5 mm) and 6 (1 mm) clock positions.
  • a triangular opening 55 (2.25 mm height) is positioned at the 7:30 clock position.
  • Arrows 60 of various sizes are positioned at 9 (1 mm arms); and 10:30 (0.5 mm arms) clock positions.
  • the openings 40 depicted in FIG. 2 were tested to ascertain their operational distance with a remote control.
  • the triangular opening had an operational distance of about 10 meters with a remote control.

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne une unité d'affichage mobile comprenant un détecteur à infrarouge positionné derrière un filtre (30) placé à l'avant de l'unité d'affichage. Le filtre (30) est recouvert d'une couche de matière (35) présentant une ou plusieurs ouvertures (50, 60). La ou les ouvertures (50, 60) présentent n'importe quelle forme et sont de taille variable.
PCT/US2006/025570 2005-08-24 2006-06-29 Detecteur a infrarouge pour unite d'affichage mobile WO2007024334A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71073405P 2005-08-24 2005-08-24
US60/710,734 2005-08-24

Publications (1)

Publication Number Publication Date
WO2007024334A1 true WO2007024334A1 (fr) 2007-03-01

Family

ID=37771911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/025570 WO2007024334A1 (fr) 2005-08-24 2006-06-29 Detecteur a infrarouge pour unite d'affichage mobile

Country Status (1)

Country Link
WO (1) WO2007024334A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023387A1 (fr) * 2008-09-01 2010-03-04 Sagem Communications Sas Façade d'appareil électronique adaptée contre les rayonnements de type rayonnements infrarouges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948969A (en) * 1988-03-29 1990-08-14 Sharp Kabushiki Kaisha Photodetector having convex window for shielding electromagnetic wave and electrostatic induction noises
US6650478B1 (en) * 1999-08-20 2003-11-18 Cpfilms Inc. Optical filter for a window

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948969A (en) * 1988-03-29 1990-08-14 Sharp Kabushiki Kaisha Photodetector having convex window for shielding electromagnetic wave and electrostatic induction noises
US6650478B1 (en) * 1999-08-20 2003-11-18 Cpfilms Inc. Optical filter for a window

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023387A1 (fr) * 2008-09-01 2010-03-04 Sagem Communications Sas Façade d'appareil électronique adaptée contre les rayonnements de type rayonnements infrarouges
FR2935585A1 (fr) * 2008-09-01 2010-03-05 Sagem Comm Facade d'appareil electonique adaptee contre les rayonnements de type rayonnements infrarouges.
CN102138169A (zh) * 2008-09-01 2011-07-27 萨基姆通讯宽带公司 适于防红外辐射的电子装置盖板
US9159226B2 (en) 2008-09-01 2015-10-13 Sagemcom Broadband Sas Electronic appliance cover adapted against infrared radiation

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