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US5353075A Expired / Lapsed US ⏱️ 0.0 years remaining

Convertible flat panel display system

Assignee: In Focus Systems Inc
•
Filing: 1993-09-29
•
Granted: 1994-10-04
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Expires: 2013-09-29
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Abstract

Abstract A flat panel display that is convertible between direct and projection display applications is incorporated in an information processing device of a unitary construction. In preferred embodiment, the information processing device is selectively configurable as a laptop-style personal computer and a projection display panel. The device includes a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation thereto. The display panel section is selectively positionable between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys for storage purposes, and a third position in which the display panel section is generally nonoverlapping and co-planar with the base section.

Inventors

  • 👤 Arlie R. Conner
  • 👤 Jonathon R. Biles
  • 👤 Paul E. Gulick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:56
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1675; G06F1/1677; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; G03; G03B; G03B21/00; G03B21/132; G06F1/1637; G06F1/1645; G06F1/1662; G06F1/1669; G06F3/00; G06F3/14; G06F3/147; H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7441; G02F1/1335; G02F1/1336; G02F1/133626; G02F1/133627; Y; Y10; Y10S; Y10S353/00; Y10S353/05

Claims Analysis

Total Claims: 47
Claim 1
Independent Claim 200 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the backing member to be removable with it from the display panel section.
Claim 2
Dependent Claim 200 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the backing member to be removable with it from the display panel section.
Claim 3
Dependent Claim 45 words
The device of claim 1 in which the flat panel display includes an addressable electro-optical element and an associated polarizer in face-to-face relation, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 4
Dependent Claim 16 words
The device of claim 2 in which the addressable electro-optical element includes a liquid crystal display.
Claim 5
Dependent Claim 25 words
The device of claim 1 in which the computer circuitry includes nonvolatile memory that stores operating instructions for operating the device as a personal computer.
Claim 6
Dependent Claim 23 words
The device of claim 4 in which the nonvolatile memory further stores operating instructions for operating the device as a projection display panel.
Claim 7
Dependent Claim 26 words
The device of claim 1 in which the computer circuitry includes nonvolatile memory that stores operating instructions for operating the device as a projection display panel.
Claim 8
Dependent Claim 32 words
The device of claim 1 further comprising an energy storage unit that provides energy for operating the device, the energy storage unit being positioned within the base section adjacent the pivotable coupling.
Claim 9
Dependent Claim 16 words
The device of claim 1 further comprising a remote control unit for controlling the device remotely.
Claim 10
Dependent Claim 210 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the backing member to be removable with it from the display panel section.
Claim 11
Dependent Claim 210 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the backing member to be removable with it from the display panel section.
Claim 12
Dependent Claim 45 words
The device of claim 9 in which the flat panel display includes an addressable electro-optical element and an associated polarizer in face-to-face relation, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 13
Dependent Claim 32 words
The device of claim 9 further comprising an energy storage unit that provides energy for operating the device, the energy storage unit being positioned within the base section adjacent the pivotable coupling.
Claim 14
Dependent Claim 16 words
The device of claim 9 further comprising a remote control unit for controlling the device remotely.
Claim 15
Dependent Claim 163 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the device being operable with an overhead projector to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; an opaque panel connected and longitudinally extendable relative to the annular case element and selectively positionable in first and second positions to, respectively, occlude and not occlude the light modulating element, at least one of the annular case element and the extension panel encasing modulation control circuitry of the display panel; and a light source that is positioned between the opaque panel and the light modulating element to illuminate the light modulating element when the opaque panel is in the first position, the opaque panel being in the second position when the information processing device is operated with an overhead projector to form projection display images.
Claim 16
Dependent Claim 163 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the device being operable with an overhead projector to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; an opaque panel connected and longitudinally extendable relative to the annular case element and selectively positionable in first and second positions to, respectively, occlude and not occlude the light modulating element, at least one of the annular case element and the extension panel encasing modulation control circuitry of the display panel; and a light source that is positioned between the opaque panel and the light modulating element to illuminate the light modulating element when the opaque panel is in the first position, the opaque panel being in the second position when the information processing device is operated with an overhead projector to form projection display images.
Claim 17
Dependent Claim 15 words
The device of claim 13 in which the opaque panel encases the modulation control circuitry.
Claim 18
Dependent Claim 217 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the flat panel display, the backing member being separately removable from the display panel section, and the light-generating unit being transmissive to allow transmissive observation of the flat panel display.
Claim 19
Dependent Claim 217 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the flat panel display, the backing member being separately removable from the display panel section, and the light-generating unit being transmissive to allow transmissive observation of the flat panel display.
Claim 20
Dependent Claim 45 words
The device of claim 15 in which the flat panel display includes an addressable electro-optical element and an associated polarizer in face-to-face relation, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 21
Dependent Claim 16 words
The device of claim 16 in which the addressable electro-optical element includes a liquid crystal display.
Claim 22
Dependent Claim 25 words
The device of claim 15 in which the computer circuitry includes nonvolatile memory that stores operating instructions for operating the device as a personal computer.
Claim 23
Dependent Claim 23 words
The device of claim 18 in which the nonvolatile memory further stores operating instructions for operating the device as a projection display panel.
Claim 24
Dependent Claim 26 words
The device of claim 15 in which the computer circuitry includes nonvolatile memory that stores operating instructions for operating the device as a projection display panel.
Claim 25
Dependent Claim 32 words
The device of claim 15 further comprising an energy storage unit that provides energy for operating the device, the energy storage unit being positioned within the base section adjacent the pivotable coupling.
Claim 26
Dependent Claim 16 words
The device of claim 15 further comprising a remote control unit for controlling the device remotely.
Claim 27
Dependent Claim 194 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and an addressable electro-optical element and an associated polarizer in face-to-face relation included in the flat panel display, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 28
Dependent Claim 194 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and an addressable electro-optical element and an associated polarizer in face-to-face relation included in the flat panel display, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 29
Dependent Claim 16 words
The device of claim 23 in which the addressable electro-optical element includes a liquid crystal display.
Claim 30
Dependent Claim 173 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a cooling fan positioned within the base section and a photo-active power source for powering the cooling fan.
Claim 31
Dependent Claim 173 words
In an information processing device of a unitary configuration having a base section that contains computer circuitry, supports data input keys, and is pivotally coupled to a display panel section with an addressable flat panel display and an opaque backing member in opposed face-to-face relation, the display panel section being selectively positionable between a first position in which the flat panel display is directly observable by a user and a second position in which the backing member covers the flat panel display and the data input keys, the improvement comprising: the pivotal coupling between the base section and the panel display section allowing the latter to pivot to a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a cooling fan positioned within the base section and a photo-active power source for powering the cooling fan.
Claim 32
Dependent Claim 32 words
The device of claim 25 in which the base section includes a bottom surface for supporting the device and the photo-active power source is positioned to receive light from the bottom surface.
Claim 33
Dependent Claim 40 words
The device of claim 25 further comprising a cooling fan control switch positioned to be automatically switched by removal of the backing member from the display panel section for activating the photo-active power source when the backing member is removed.
Claim 34
Dependent Claim 227 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the flat panel display the backing member being separately removable from the display panel section, and the light-generating unit being transmissive to allow transmissive observation of the flat panel display.
Claim 35
Dependent Claim 227 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a light-generating unit included in the display panel section for generating light between the backing member and the flat panel display for direct viewing of it, the light-generating unit being coupled to the flat panel display the backing member being separately removable from the display panel section, and the light-generating unit being transmissive to allow transmissive observation of the flat panel display.
Claim 36
Dependent Claim 45 words
The device of claim 28 in which the flat panel display includes an addressable electro-optical element and an associated polarizer in face-to-face relation, the polarizer being positioned between the backing member and the addressable electro-optical element and in spaced-apart relation to the addressable electro-optical element.
Claim 37
Dependent Claim 32 words
The device of claim 28 further comprising an energy storage unit that provides energy for operating the device, the energy storage unit being positioned within the base section adjacent the pivotable coupling.
Claim 38
Dependent Claim 16 words
The device of claim 28 further comprising a remote control unit for controlling the device remotely.
Claim 39
Dependent Claim 183 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a cooling fan positioned within the base section and a photo-active power source for powering the cooling fan.
Claim 40
Dependent Claim 183 words
An information processing device with a convertible display system, comprising: a base section that contains computer circuitry and supports data input keys, the computer circuitry including nonvolatile memory that stores operating instructions for selectively operating the device as a personal computer and a projection display panel; a display panel section having an addressable flat panel display and an opaque backing member in opposed face-to-face relation; a pivotal coupling between the base section and the panel display section that allows the latter to pivot between a first position in which the flat panel display is directly observable by a user, a second position in which the backing member covers the flat panel display and the data input keys, and a third position that is generally nonoverlapping and co-planar with the base section; a user-operable fastener between the backing member and the panel display section so that the backing member is removable from the panel display section to allow transmissive observation of the flat panel display; and a cooling fan positioned within the base section and a photo-active power source for powering the cooling fan.
Claim 41
Dependent Claim 162 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the device being operable with an overhead projector to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; an opaque panel connected and pivotable relative to the annular case element and selectively positionable in first and second positions to, respectively, occlude and not occlude the light modulating element, at least one of the annular case element and the extension panel encasing modulation control circuitry of the display panel; and a light source that is positioned between the opaque panel and the light modulating element to illuminate the light modulating element when the opaque panel is in the first position, the opaque panel being in the second position when the information processing device is operated with an overhead projector to form projection display images.
Claim 42
Dependent Claim 162 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the device being operable with an overhead projector to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; an opaque panel connected and pivotable relative to the annular case element and selectively positionable in first and second positions to, respectively, occlude and not occlude the light modulating element, at least one of the annular case element and the extension panel encasing modulation control circuitry of the display panel; and a light source that is positioned between the opaque panel and the light modulating element to illuminate the light modulating element when the opaque panel is in the first position, the opaque panel being in the second position when the information processing device is operated with an overhead projector to form projection display images.
Claim 43
Dependent Claim 15 words
The device of claim 33 in which the opaque panel encases the modulation control circuitry.
Claim 44
Dependent Claim 123 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the light modulating element having first and second opposed major surfaces, the device being operable with an overhead projector to receive light at the first major surface and pass light from the second major surface to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; and a removable backing member positionable in opposed face-to-face relation to the first major surface of the light modulating element and having light directing means for directing light through the light modulating element to allow direct viewing of it.
Claim 45
Dependent Claim 123 words
In an information processing device having a light modulating element for modulating light to display information and modulation control circuitry for controlling the light modulating element, the light modulating element having first and second opposed major surfaces, the device being operable with an overhead projector to receive light at the first major surface and pass light from the second major surface to form projection display images, the improvement comprising: an annular case element with an aperture within which the light modulating element is supported; and a removable backing member positionable in opposed face-to-face relation to the first major surface of the light modulating element and having light directing means for directing light through the light modulating element to allow direct viewing of it.
Claim 46
Dependent Claim 43 words
The device of claim 35 in which the light directing means includes a reflective material facing the first major surface for receiving and reflecting through the light modulating element ambient light that strikes the second major surface and propagates to the reflective material.
Claim 47
Dependent Claim 24 words
The device of claim 35 in which the light directing means includes a backlight for generating and directing light through the light modulating element.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-10-03 1998-04-04 1998-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-10-03 2002-04-04 2002-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-10-03 2006-04-04 2006-10-04 $7700.00 Window Closed / Lapsed

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