GB1569838A - Connectors - Google Patents

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Publication number
GB1569838A
GB1569838A GB37516/77A GB3751677A GB1569838A GB 1569838 A GB1569838 A GB 1569838A GB 37516/77 A GB37516/77 A GB 37516/77A GB 3751677 A GB3751677 A GB 3751677A GB 1569838 A GB1569838 A GB 1569838A
Authority
GB
United Kingdom
Prior art keywords
frame
display device
contacts
arrangement
fitted
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB37516/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cannon Electric Great Britain Ltd
Original Assignee
Cannon Electric Great Britain Ltd
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 Cannon Electric Great Britain Ltd filed Critical Cannon Electric Great Britain Ltd
Priority to GB37516/77A priority Critical patent/GB1569838A/en
Priority to DE19782839009 priority patent/DE2839009A1/en
Publication of GB1569838A publication Critical patent/GB1569838A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Description

(54) IMPROVEMENTS IN OR RELATING TO CONNECTORS (71) We, CANNON ELECTRIC (GREAT BRITAIN) LIMITED, a British Company of Lister Road, Winchester Road, Basingstoke, Hampshire, England. do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to a mounting arrangement for a liquid crystal or other optical display device.
Liquid crystal and other display devices (e.g. those using light emitting diodes or fluorescent strip arrangements) are available in various shapes the commonest of which is a rectangular structure whose thickness is small compared with its other dimensions.
Hitherto such display devices have been mounted in a relatively crude manner by plugging them into connectors of the type used for printed circuit board edge connectors. This does not provide any means of retention of the display in place, other than that due to contact pressure, which may be inadequate to overcome vibration and shock effects.
Another known technique is the use of a single row of in-line sockets cropped from dual-inline socket connectors.
An object of the present invention is to provide a mounting arrangement for a display device which minimises or overcomes the disadvantages of known arrangements.
According to the present invention there is provided a mounting arrangement for a visual display device which is relatively thin compared with its other dimensions, which includes a first frame of similar shape to the display device and having electrical contacts on one of its edges, in which the display device is fitted into the first frame in a snap-action manner such that the frame firmly encloses the display device and such that electrical contacts on the display device engage the electrical contacts on the frame, in which the contacts on the first frame are resilient so as to engage the contacts on the device with good contact pressure, and in which a further frame of similar shape to the first frame is fitted to that first frame in snapaction manner so as tu retain the display device in place in the mounting arrangement.
An embodiment of the invention will now be described with reference to the exploded diagram attached to the Provisional Specification.
In the drawing, the display device, which in the present example is a liquid crystal device is shown at 1, and it will be seen that it is rectangular and relatively thin. Along one edge there is a portion 2 of reduced thickness which has electrical contact strips on its outer surfaces. These contact strips are represented "in phantom" as they are on the inner face of portion 2.
We now consider the housing which forms the larger part of the mounting arrangement, this being illustrated at 3. This is a pictureframe-like moulding with contacts 4 along its rear wall, the contacts having at least their inner portions of strip-like form. The frame is open over at least part of its area, as can be seen from the drawing.
On the front walls of the frame there is a moulded latch 5 which not only holds the display device in place, but urges it against the rear wall of the frame and the contact area. The left-hand side of the frame has an integrally-moulded compensator 6 which forces the display towards the right-hand side which forms the datum face for the mounting arrangement These features are needed to locate the display device accurately in the datum area because ob the relatively large tolerances on the display.
The frame has mounting feet 7,8 so that the mounting arrangement can be installed with the display device in any desired altitude, e.g. vertical or horizontal.
The display device is inserted into the frame at an angle, as indicated at 9, so that its leading edge is located by three lugs 10, 11, 12, which are on the rear face of the frame. Then the display is pushed downwards into the housing until snapped tight under the retention latch 5. The display is now firmly located towards the datum area by the joint action of the latch 5 and the com pensator 6, so that its contact strips are correctly aligned with the inner ends of the contacts 4. The inner portion of each of these contacts is resilient and is bent slightly upwards as seen in the drawing, so that it is spring-urged against its one of the contact strips on the display device. This gives good contact pressure, and with the form of mounting described above gives good and secure retention in place in the frame.
The second frame-like member 18, known as a bezel, is also a thermoplastics moulding and is similarly shaped to the member 3.
This is fitted closely to the top surface of the display device when the latter is mounted in the frame 3 so as to minimize light dispersion and to provide a suitable enclosure for fitting into an equipment's front panel. It can, if desired, incorporate a sheet of transparent material as a viewing window.
The method of assembling the bezel is similar in essence to that used to assemble the display device to the frame 3 in that it locates under the lug 11 with pip 17 and then snap fits with two pips 13, 14 which fit into recesses 15, 16 one on each side of the retention latch 5.
Thus it will be seen that a mounting arrangement is provided which is relatively inexpensive but which retains the display device in place in a good vibration and shockresistant manner.
WHAT WE CLAIM IS: 1. A mounting arrangement for a visual display device which is relatively thin compared with its other dimensions, which includes a first frame of similar shape to the display device and having electrical contacts on one of its edges, in which the display device is fitted into the first frame in a snapaction manner such that the frame firmly encloses the display device and such that electrical contacts on the display device engage the electrical contacts on the frame, in which the contacts on the first frame are resilient so as to engage the contacts on the device with good contact pressure, and in which a further frame of similar shape to the first frame is fitted to that first frame in snapaction manner so as to retain the display device in place in the mounting arrangement.
2. An arrangement as claimed in claim 1, in which said first frame and said further frame are rectangular, as is the display device to be mounted in the arrangement, in which a plurality of lugs is located along the same edge of the first frame as the contacts on that frame, in which when the display device is fitted to the first frame its edge carrying its contacts is fitted between the lugs and the contacts on the first frame so that the two sets of contacts are brought into engagement, and in which an edge of the first frame which is parallel to the said edge with the lugs has a latch which, when the display device is in position holds the latter in place, said latch enabling said snap-action fitment.
3. An arrangement as claimed in claim 2, and in which one of the edges of the first frame at right angles to the contact-carrying edges has a resilient compensator which bears on an edge of the display device when the latter is fitted to urge that device against another edge of the frame, thus providing accurate location of the display device in the frame.
4. An arrangement as claimed in claim 3, in which said first frame has an aperture of similar dimensions to the visible portion of the display device, in which said further frame is located in place in snap-action manner in the first frame.
5. An arrangement as claimed in claim 4, and in which said second frame-like member also has an aperture and has a transparent window fitted in its said aperture.
6. The combination of an arrangement as claimed in claim 1, 2, 3, 4 or 5, and a liquid crystal display device.
7. A mounting arrangement for a visible display device, substantially as described with reference to the drawings accompanying the provisional specification.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. pensator 6, so that its contact strips are correctly aligned with the inner ends of the contacts 4. The inner portion of each of these contacts is resilient and is bent slightly upwards as seen in the drawing, so that it is spring-urged against its one of the contact strips on the display device. This gives good contact pressure, and with the form of mounting described above gives good and secure retention in place in the frame. The second frame-like member 18, known as a bezel, is also a thermoplastics moulding and is similarly shaped to the member 3. This is fitted closely to the top surface of the display device when the latter is mounted in the frame 3 so as to minimize light dispersion and to provide a suitable enclosure for fitting into an equipment's front panel. It can, if desired, incorporate a sheet of transparent material as a viewing window. The method of assembling the bezel is similar in essence to that used to assemble the display device to the frame 3 in that it locates under the lug 11 with pip 17 and then snap fits with two pips 13, 14 which fit into recesses 15, 16 one on each side of the retention latch 5. Thus it will be seen that a mounting arrangement is provided which is relatively inexpensive but which retains the display device in place in a good vibration and shockresistant manner. WHAT WE CLAIM IS:
1. A mounting arrangement for a visual display device which is relatively thin compared with its other dimensions, which includes a first frame of similar shape to the display device and having electrical contacts on one of its edges, in which the display device is fitted into the first frame in a snapaction manner such that the frame firmly encloses the display device and such that electrical contacts on the display device engage the electrical contacts on the frame, in which the contacts on the first frame are resilient so as to engage the contacts on the device with good contact pressure, and in which a further frame of similar shape to the first frame is fitted to that first frame in snapaction manner so as to retain the display device in place in the mounting arrangement.
2. An arrangement as claimed in claim 1, in which said first frame and said further frame are rectangular, as is the display device to be mounted in the arrangement, in which a plurality of lugs is located along the same edge of the first frame as the contacts on that frame, in which when the display device is fitted to the first frame its edge carrying its contacts is fitted between the lugs and the contacts on the first frame so that the two sets of contacts are brought into engagement, and in which an edge of the first frame which is parallel to the said edge with the lugs has a latch which, when the display device is in position holds the latter in place, said latch enabling said snap-action fitment.
3. An arrangement as claimed in claim 2, and in which one of the edges of the first frame at right angles to the contact-carrying edges has a resilient compensator which bears on an edge of the display device when the latter is fitted to urge that device against another edge of the frame, thus providing accurate location of the display device in the frame.
4. An arrangement as claimed in claim 3, in which said first frame has an aperture of similar dimensions to the visible portion of the display device, in which said further frame is located in place in snap-action manner in the first frame.
5. An arrangement as claimed in claim 4, and in which said second frame-like member also has an aperture and has a transparent window fitted in its said aperture.
6. The combination of an arrangement as claimed in claim 1, 2, 3, 4 or 5, and a liquid crystal display device.
7. A mounting arrangement for a visible display device, substantially as described with reference to the drawings accompanying the provisional specification.
GB37516/77A 1977-09-08 1977-09-08 Connectors Expired GB1569838A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB37516/77A GB1569838A (en) 1977-09-08 1977-09-08 Connectors
DE19782839009 DE2839009A1 (en) 1977-09-08 1978-09-07 HOLDER FOR OPTICAL DISPLAY DEVICES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37516/77A GB1569838A (en) 1977-09-08 1977-09-08 Connectors

Publications (1)

Publication Number Publication Date
GB1569838A true GB1569838A (en) 1980-06-18

Family

ID=10397064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37516/77A Expired GB1569838A (en) 1977-09-08 1977-09-08 Connectors

Country Status (2)

Country Link
DE (1) DE2839009A1 (en)
GB (1) GB1569838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180105A (en) * 1985-09-03 1987-03-18 Bicc Plc Circuit board connector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137864A1 (en) * 1981-09-23 1983-04-14 Siemens AG, 1000 Berlin und 8000 München FASTENING AND CONTACTING ARRANGEMENT FOR AN LCD DISPLAY UNIT OF AN ELECTRONIC DEVICE HOUSED IN A HOUSING
US4514920A (en) * 1982-11-16 1985-05-07 Doron Shafrir Display module
US4584786A (en) * 1982-12-23 1986-04-29 Gte Automatic Electric Inc. Information panel assembly
JPH0337264Y2 (en) * 1985-01-17 1991-08-07
DE3923959C1 (en) * 1989-07-17 1990-10-18 Bosse Telekomsysteme Gmbh, 1000 Berlin, De Silicon rubber contact mat - has keyboard with contact buttons and holder for LCD panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180105A (en) * 1985-09-03 1987-03-18 Bicc Plc Circuit board connector
US4715826A (en) * 1985-09-03 1987-12-29 Bicc Public Limited Company Circuit board connector
GB2180105B (en) * 1985-09-03 1990-06-06 Bicc Plc Circuit board connector

Also Published As

Publication number Publication date
DE2839009A1 (en) 1979-03-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee