Patent · US10598974B2 · B2 · US

On-vehicle display device

(11) Publication number

US10598974B2

(21) Application number

16/223,612

(22) Filing date

2018-12-18

(30) Priority date

2018-01-10

(43) Publication date

2020-03-24

(45) Date of grant

2020-03-24

(51) IPC

B60K 35/10; B60K 35/22; B60K 35/50; G02F 1/1333

(52) CPC

G02F Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein; non-linear optics; frequency-changing of light; optical logic elements; optical analogue/digital converters: 1/133308, 1/133314, 1/133331, 1/13338, 2001/133314, 2001/133331, 2201/54, 2202/28, 2203/01
B60K Arrangement or mounting of propulsion units or of transmissions in vehicles; arrangement or mounting of plural diverse prime-movers in vehicles; auxiliary drives for vehicles; instrumentation or dashboards for vehicles; arrangements in connection with cooling, air intake, gas exhaust or fuel supply of propulsion units in vehicles: 2360/1438, 2360/688, 2360/693, 2360/695, 2360/816, 2360/96, 2370/1438, 2370/688, 2370/693, 2370/695, 2370/816, 2370/91, 35/00, 35/10, 35/22, 35/50, 37/06
B60R Vehicles, vehicle fittings, or vehicle parts, not otherwise provided for: 11/0235
G06F Electric digital data processing: 3/044

(73) Assignee

Alpine Electronics Inc

(72) Inventors

Keiichi Shimojo; Hiroshi Matsubuchi

(54) Title

On-vehicle display device

(57) Abstract

An on-vehicle display device includes a fixed panel fixed to a vehicle body, a display unit, and a bracket that fixes the display unit to the fixed panel. In the display unit, the display cover plate is provided with an overhang which laterally overhangs from a display area, and the overhang has a back side supported by a support piece of the bracket without being fixed to the fixed panel.

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Claims (17)

An on-vehicle display device comprising: a display unit that includes a display cell and a cell support member supporting the display cell; and a fixed panel that supports the display unit and is configured to be installed on a vehicle body, wherein the display unit is provided with a translucent display cover plate positioned on a front side, which is a display side of the display cell, the display cover plate has an overhang that overhangs from a display area of the display cell, and a bracket to be fixed to the fixed panel at a first location on the bracket is provided such that the overhang is not fixed to the fixed panel but a back side of the overhang is supported by the bracket at a second location on the bracket that is offset from the first location on the bracket.
The on-vehicle display device according to claim 1, wherein which is a part of the cell support member, and the back side of the cover support portion is attached to the bracket.
The on-vehicle display device according to claim 1, wherein the back side of the overhang is directly attached to the bracket.
The on-vehicle display device according to claim 1, wherein the fixed panel is made of a synthetic resin material and has an opening in which the display unit is accommodated.
The on-vehicle display device according to claim 4, wherein the bracket is made of a metal plate.
The on-vehicle device according to claim 2, wherein the cover support portion comprises a synthetic resin material.
The on-vehicle device according to claim 6, wherein the overhang is attached to the cover support portion using adhesive tape.
The on-vehicle device according to claim 2, wherein a location at which the overhang is attached to the cover support portion is offset from a location at which the cover support portion is attached to the bracket.
The on-vehicle device according to claim 1, wherein the overhang of the display cover plate overhangs laterally from the display area of the display cell.
An on-vehicle display device comprising: a display unit that includes a display cell and a cell support member supporting the display cell; and a fixed panel that supports the display unit and is configured to be installed on a vehicle body, wherein the display unit is provided with a touch panel positioned on a front side, which is a display side of the display cell, and the cell support member is fixed to a back side of at least one of the display cell and the touch panel; and wherein a location at which the at least one of the display cell and the touch panel is attached to the cell support member is offset from a location at which the cell support member is attached to the fixed panel.
The on-vehicle display device according to claim 10, wherein the display unit is further provided with a translucent display cover plate positioned on a front side of the touch panel, the display cover plate has an overhang that overhangs from a display area of the display cell, and a bracket to be fixed to the fixed panel is provided such that the overhang is not fixed to the fixed panel but a back side of the overhang is supported by the bracket.
The on-vehicle display device according to claim 11, wherein the back side of the overhang is attached to the bracket using an adhesion layer.
The on-vehicle display device according to claim 10, wherein the fixed panel is made of a synthetic resin material and has an opening in which the display unit is accommodated.
The on-vehicle display device according to claim 11, wherein the bracket is made of a metal plate.
The on-vehicle device according to claim 10, wherein the cell support member is made of a metal plate.
The on-vehicle device according to claim 10, wherein the at least one of the display cell and the touch panel is attached to the cell support member using an adhesion layer.
The on-vehicle device according to claim 11, wherein the overhang of the display cover plate overhangs laterally from the display area of the display cell.

Description

1. Field of the Invention

The present invention relates to an on-vehicle display device in which a display cell is prevented from being directly affected by distortion of a fixed panel to reduce display unevenness in an image displayed by the display cell.

2. Description of the Related Art

An on-vehicle display device has a fixed panel incorporated in a dashboard, an instrument panel, or the like inside a passenger cabin, and a display unit including a display cell and a backlight unit is mounted to the fixed panel. Such a type of on-vehicle display device has a problem that display unevenness occurs due to generation of distortion in the display cell when a large fixing force acts on the display cell. In recent years, an IPS liquid crystal cell has been used to secure a wide viewing angle. However, when bending stress or torsional stress acts on the liquid crystal cell, black unevenness (brightness unevenness) is likely to occur as the display unevenness.

JP 2016-122151 A describes an on-vehicle display device in which fixing stress acting on a display cell is relaxed as a countermeasure for suppressing occurrence of display unevenness. FIG. 4 illustrates an on-vehicle display device having the same structure as that described in JP 2016-122151 A as a conventional example.

In an on- vehicle display device 100 of the conventional example illustrated in FIG. 4, a Z1 direction is a front side in the display direction, and a Z2 direction is the rear. The on- vehicle display device 100 has a fixed panel 110 fixed to a vehicle body, and the display unit 101 is installed inside a frame opening 110 a of the fixed panel 110.

Citations (7)

US5905550A
US20060012962A1
US20090190062A1
US20130077017A1
US20150022753A1
US20160187711A1
JP2016122151A

Record as JSON

{
  "publication_number": "US10598974B2",
  "country": "US",
  "kind": "B2",
  "title": "On-vehicle display device",
  "abstract": "An on-vehicle display device includes a fixed panel fixed to a vehicle body, a display unit, and a bracket that fixes the display unit to the fixed panel. In the display unit, the display cover plate is provided with an overhang which laterally overhangs from a display area, and the overhang has a back side supported by a support piece of the bracket without being fixed to the fixed panel.",
  "claims": [
    "1. An on-vehicle display device comprising: a display unit that includes a display cell and a cell support member supporting the display cell; and a fixed panel that supports the display unit and is configured to be installed on a vehicle body, wherein the display unit is provided with a translucent display cover plate positioned on a front side, which is a display side of the display cell, the display cover plate has an overhang that overhangs from a display area of the display cell, and a bracket to be fixed to the fixed panel at a first location on the bracket is provided such that the overhang is not fixed to the fixed panel but a back side of the overhang is supported by the bracket at a second location on the bracket that is offset from the first location on the bracket.",
    "2. The on-vehicle display device according to claim 1, wherein which is a part of the cell support member, and the back side of the cover support portion is attached to the bracket.",
    "3. The on-vehicle display device according to claim 1, wherein the back side of the overhang is directly attached to the bracket.",
    "4. The on-vehicle display device according to claim 1, wherein the fixed panel is made of a synthetic resin material and has an opening in which the display unit is accommodated.",
    "5. The on-vehicle display device according to claim 4, wherein the bracket is made of a metal plate.",
    "6. The on-vehicle device according to claim 2, wherein the cover support portion comprises a synthetic resin material.",
    "7. The on-vehicle device according to claim 6, wherein the overhang is attached to the cover support portion using adhesive tape.",
    "8. The on-vehicle device according to claim 2, wherein a location at which the overhang is attached to the cover support portion is offset from a location at which the cover support portion is attached to the bracket.",
    "9. The on-vehicle device according to claim 1, wherein the overhang of the display cover plate overhangs laterally from the display area of the display cell.",
    "10. An on-vehicle display device comprising: a display unit that includes a display cell and a cell support member supporting the display cell; and a fixed panel that supports the display unit and is configured to be installed on a vehicle body, wherein the display unit is provided with a touch panel positioned on a front side, which is a display side of the display cell, and the cell support member is fixed to a back side of at least one of the display cell and the touch panel; and wherein a location at which the at least one of the display cell and the touch panel is attached to the cell support member is offset from a location at which the cell support member is attached to the fixed panel.",
    "11. The on-vehicle display device according to claim 10, wherein the display unit is further provided with a translucent display cover plate positioned on a front side of the touch panel, the display cover plate has an overhang that overhangs from a display area of the display cell, and a bracket to be fixed to the fixed panel is provided such that the overhang is not fixed to the fixed panel but a back side of the overhang is supported by the bracket.",
    "12. The on-vehicle display device according to claim 11, wherein the back side of the overhang is attached to the bracket using an adhesion layer.",
    "13. The on-vehicle display device according to claim 10, wherein the fixed panel is made of a synthetic resin material and has an opening in which the display unit is accommodated.",
    "14. The on-vehicle display device according to claim 11, wherein the bracket is made of a metal plate.",
    "15. The on-vehicle device according to claim 10, wherein the cell support member is made of a metal plate.",
    "16. The on-vehicle device according to claim 10, wherein the at least one of the display cell and the touch panel is attached to the cell support member using an adhesion layer.",
    "17. The on-vehicle device according to claim 11, wherein the overhang of the display cover plate overhangs laterally from the display area of the display cell."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThe present invention relates to an on-vehicle display device in which a display cell is prevented from being directly affected by distortion of a fixed panel to reduce display unevenness in an image displayed by the display cell.\n\n2. Description of the Related Art\n\nAn on-vehicle display device has a fixed panel incorporated in a dashboard, an instrument panel, or the like inside a passenger cabin, and a display unit including a display cell and a backlight unit is mounted to the fixed panel. Such a type of on-vehicle display device has a problem that display unevenness occurs due to generation of distortion in the display cell when a large fixing force acts on the display cell. In recent years, an IPS liquid crystal cell has been used to secure a wide viewing angle. However, when bending stress or torsional stress acts on the liquid crystal cell, black unevenness (brightness unevenness) is likely to occur as the display unevenness.\n\nJP 2016-122151 A describes an on-vehicle display device in which fixing stress acting on a display cell is relaxed as a countermeasure for suppressing occurrence of display unevenness. FIG. 4 illustrates an on-vehicle display device having the same structure as that described in JP 2016-122151 A as a conventional example.\n\nIn an on- vehicle display device 100 of the conventional example illustrated in FIG. 4, a Z1 direction is a front side in the display direction, and a Z2 direction is the rear. The on- vehicle display device 100 has a fixed panel 110 fixed to a vehicle body, and the display unit 101 is installed inside a frame opening 110 a of the fixed panel 110.",
  "cpc": [
    "G02F 1/133308",
    "B60K 2360/1438",
    "B60K 2360/688",
    "B60K 2360/693",
    "B60K 2360/695",
    "B60K 2360/816",
    "B60K 2360/96",
    "B60K 2370/1438",
    "B60K 2370/688",
    "B60K 2370/693",
    "B60K 2370/695",
    "B60K 2370/816",
    "B60K 2370/91",
    "B60K 35/00",
    "B60K 35/10",
    "B60K 35/22",
    "B60K 35/50",
    "B60K 37/06",
    "B60R 11/0235",
    "G02F 1/133314",
    "G02F 1/133331",
    "G02F 1/13338",
    "G02F 2001/133314",
    "G02F 2001/133331",
    "G02F 2201/54",
    "G02F 2202/28",
    "G02F 2203/01",
    "G06F 3/044"
  ],
  "ipc": [
    "B60K 35/10",
    "B60K 35/22",
    "B60K 35/50",
    "G02F 1/1333"
  ],
  "assignees": [
    "Alpine Electronics Inc"
  ],
  "inventors": [
    "Keiichi Shimojo",
    "Hiroshi Matsubuchi"
  ],
  "filing_date": "2018-12-18",
  "publication_date": "2020-03-24",
  "grant_date": "2020-03-24",
  "priority_date": "2018-01-10",
  "application_number": "US-201816223612-A",
  "family_id": "67140723",
  "cited_by_count": 3,
  "citations": [
    "US5905550A",
    "US20060012962A1",
    "US20090190062A1",
    "US20130077017A1",
    "US20150022753A1",
    "US20160187711A1",
    "JP2016122151A"
  ]
}

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