WO2007024334A1 - Infrared detector for a mobile display - Google Patents

Infrared detector for a mobile display 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
French (fr)
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/en

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

A mobile display including an infrared detector positioned behind a filter (30) on the front of the display is disclosed. The filter (30) is covered with a layer of material (35) having one or more openings (50, 60) therein. The one or more openings (50, 60) have any shape and be of a varying size.

Description

INFRARED DETECTOR FOR A MOBILE DISPLAY
Field of the Invention
This invention relates to a mobile display and, more particularly to a mobile display having an infrared detector.
Background of the Invention
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. On many displays, It is desirable to hide the infrared transparent window so the user will not see it.
Some displays have hidden the infrared detector behind a vacuum metallized plastic ring. However, 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.
Thus, a need exists for a mobile display having a transmissive infrared window.
SUMMARY OF THE INVENTION
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.
BRIEF DESCRIPTION OF THE DRAWING
A preferred implementation of the principles of the present invention will now be described in greater detail, with relation to the accompanying drawings, in which:
FIG. 1 is a front view of a mobile display including a hidden infrared detector of the present invention; and FIG. 2 illustrates a filter of the present invention behind which the infrared detector is hidden.
DETAILED DESCRIPTION
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. For example, 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 mm2.
The positioning of the one or more openings 40 on the filter is also variable. For example with reference to FIG. 2, 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. Although an exemplary mobile display which incorporates the teachings of the present invention has been shown and described in detail herein, those skilled in the art can readily devise many other varied embodiments that still incorporate these teachings.

Claims

CLAIMS:
1 . A display, comprising: an infrared detector; and a filter positioned in front of the infrared detector, wherein the filter is covered with a layer of material having one or more openings therein.
2. The display of claim 1 wherein the filter has a shape selected from the group consisting of round, square, rectangular, triangular, ring and oval,.
3. The display of claim 1 wherein the filter is made of an infrared transparent material.
4. The display of claim 3 wherein the infrared transparent material is selected from the group consisting of polyethylene terephthalate (PET) and polyvinylchloride (PVC).
5. The display of claim 1 wherein the one or more openings have a shape selected from the group consisting of round, square, rectangular, triangular, ring and oval,.
6. The display of claim 1 wherein one or more opening has a shape different from another.
7. The display of claim 1 wherein the one or more openings have a size less than about 5 mm2.
8. A mobile display system, comprising: an infrared detector; and a filter positioned in front of the infrared detector, wherein the filter is covered with a layer of material having one or more openings therein.
9. The mobile display system of claim 8 wherein the filter has a shape selected from the group consisting of round, square, rectangular, triangular, ring and oval,.
10. The mobile display system of claim 8 wherein the filter is made of an infrared transparent material.
11. The mobile display system of claim 10 wherein the infrared transparent material is selected from the group consisting of polyethylene terephthalate (PET) and polyvinylchloride (PVC).
12. The mobile display system of claim 8 wherein the one or more openings have a shape selected from the group consisting of round, square, rectangular, triangular, ring and oval,.
13. The mobile display system of claim 8 wherein one or more opening has a shape different from another.
14. The mobile display system of claim 8 wherein the one or more openings have a size less than about 5 mm2.
PCT/US2006/025570 2005-08-24 2006-06-29 Infrared detector for a mobile display WO2007024334A1 (en)

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 (en) 2007-03-01

Family

ID=37771911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/025570 WO2007024334A1 (en) 2005-08-24 2006-06-29 Infrared detector for a mobile display

Country Status (1)

Country Link
WO (1) WO2007024334A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023387A1 (en) * 2008-09-01 2010-03-04 Sagem Communications Sas Electronic appliance cover adapted against infrared radiation

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 (en) * 2008-09-01 2010-03-04 Sagem Communications Sas Electronic appliance cover adapted against infrared radiation
FR2935585A1 (en) * 2008-09-01 2010-03-05 Sagem Comm FACADE OF ELECTRONIC APPARATUS ADAPTED AGAINST RADIATION OF INFRARED RADIATION TYPE.
CN102138169A (en) * 2008-09-01 2011-07-27 萨基姆通讯宽带公司 Electronic appliance cover adapted against infrared radiation
US9159226B2 (en) 2008-09-01 2015-10-13 Sagemcom Broadband Sas Electronic appliance cover adapted against infrared radiation

Similar Documents

Publication Publication Date Title
CN108055552B (en) Direct broadcasting room barrage methods of exhibiting, device and corresponding terminal
CN103914269B (en) A kind of electronic equipment
RU2488242C2 (en) Device and method of inputting colour selection
CN102138330A (en) Variable backlight control for bezel
CN105118407B (en) A kind of electronic product and its LOGO display methods, system
Abramowski et al. Discovery of VHE γ-ray emission and multi-wavelength observations of the BL Lacertae object 1RXS J101015. 9− 311909
US20110175848A1 (en) Infrared ray touch panel device with high efficiency
CN105869604A (en) Method and device for regulating display brightness of screen and electronic device
CN107250941B (en) Control system for SPD device and home automation
WO2007024334A1 (en) Infrared detector for a mobile display
CN111124227A (en) Image display method and electronic equipment
CN112304252B (en) Folding angle determining method, folding equipment and electronic equipment
CN108027549A (en) Display system
CN108195029A (en) Air conditioner
CN201897780U (en) Control panel system
CN203204285U (en) Projector protecting apparatus
CN208011996U (en) Air conditioner
US20110133882A1 (en) Apparatus for detecting coordinates of an event within interest region, display device, security device and electronic blackboard including the same
CN107395794B (en) Mobile terminal, camera thereof and processing method
US11685505B2 (en) Window for an aircraft and display for aircraft window
CN102201182A (en) Shelter device and display system
CN208237981U (en) air conditioner
KR101553612B1 (en) Tent for camping
CN108224565A (en) Air conditioner
CN104331198A (en) Device for realizing proximity sensing technology by applying conducting element

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06785958

Country of ref document: EP

Kind code of ref document: A1