WO2020071900A1 - Ensemble d'affichage lumineux - Google Patents

Ensemble d'affichage lumineux

Info

Publication number
WO2020071900A1
WO2020071900A1 PCT/MY2019/050068 MY2019050068W WO2020071900A1 WO 2020071900 A1 WO2020071900 A1 WO 2020071900A1 MY 2019050068 W MY2019050068 W MY 2019050068W WO 2020071900 A1 WO2020071900 A1 WO 2020071900A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
display panel
light display
push button
button unit
Prior art date
Application number
PCT/MY2019/050068
Other languages
English (en)
Inventor
Her Mei TENG
Zi Yong TEAN
Soon Peng TAN
Kit Yoke LAM
Original Assignee
Daikin Research & Development Malaysia Sdn. Bhd.
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 Daikin Research & Development Malaysia Sdn. Bhd. filed Critical Daikin Research & Development Malaysia Sdn. Bhd.
Priority to CN201980071705.3A priority Critical patent/CN112997267A/zh
Publication of WO2020071900A1 publication Critical patent/WO2020071900A1/fr
Priority to PH12021550725A priority patent/PH12021550725A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
    • F21V3/0615—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass the material diffusing light, e.g. translucent glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/039—Selective or different modes of illumination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/056—Diffuser; Uneven surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0622—Light conductor only an illuminated ring around keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/07—Actuators transparent
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches

Definitions

  • This invention relates to a light display assembly.
  • the light display assembly is incorporated into a push button unit that emits light for indicating state of operation of the device or for decorative purpose.
  • Light display assembly Electronic devices are commonly equipped with light display assembly for decorative or functional purposes.
  • One important function of light display assembly is to indicate the state of operation of the device that can be regulated manually or automatically.
  • light display assemblies are often incorporated into push buttons that are generally employed in electronic devices for manually controlling operation of switches of the devices, whether they are intended for actuating, stopping or changing mode of operation of the device.
  • the switches are used for making or breaking connections of an electric circuit within the device.
  • push buttons With a surface adapted for receiving a force, especially applied by a human finger for operating the switch, push buttons are incorporated with pusher elements with resilient properties for returning the button from a pushed state to an un-pushed state.
  • a commonly seen push button is the elevator button for controlling operation of the elevator.
  • CN2298231Y introduces an elevator button that comprises a button body, which upon being pressed, contacts a switch of an electric circuit for operating the switch. The push mechanism is facilitated by a spring. With a plurality of holes formed around a ring structure that surrounds the elevator button, light is dispersed through each hole that is emitted from a light source designated for each hole. However, uniformity of light dispersed around the ring structure is not attainable by this elevator button as it only focuses on transmitting light through certain spots of the ring structure where the holes are formed.
  • a different push button disclosed in US5039832A is an illuminated touch button which has a button element located within and surrounded by a light ring element with an array of light emitting diodes.
  • the light ring element includes a series of individual chambers positioned substantially over each light emitting diode in the array.
  • each chamber is equipped with a set of three light-receiving triangulated surfaces with a series of edges that act to diffuse the illumination of the light emitting diodes.
  • this button requires multiple light sources and the formation of the triangulated surfaces of the chamber to achieve even light dispersion.
  • One object of the invention is to provide a light display panel of a device to provide a visual indication of the state of operation of the device or serve decorative purpose.
  • Another object of the invention is to produce uniform light dispersion on the light display panel by one or more light sources.
  • Still another object of the invention is to prevent undesired light dispersion on portions of the device, especially around the light display panel.
  • Yet another object of the invention is to provide a push button unit that can be incorporated with the light display panel.
  • Another object of the invention is to provide a smooth pressing feeling for the user when manipulating the push button unit.
  • the embodiment of the present invention describes a light display assembly comprising at least one light source; and a light display panel allowing dispersion of light from the light source and illumination of at least peripheral portion of the light display panel, characterized in that the light display panel is made mainly of a light diffusing material such that the light display panel is translucent.
  • the light source is positioned before the light display panel with respect to light transmitting direction.
  • the light source and light display panel can both be aligned at a substantially similar center axis.
  • more than one light source is respectively disposed around the peripheral portion of the light display panel at a substantially equal distance between each other.
  • the light display assembly comprises a housing for accommodating the light source that is in a light-absorbing colour.
  • a panel cover is disposed after the light display panel, with respect to light transmitting direction from the light source.
  • the panel cover is formed with at least one opening exposing the peripheral portion of the light display panel.
  • the light display panel further comprises a light absorbing means having a first light absorbing layer attached to inner surface of the panel cover.
  • the light absorbing means is formed with at least one opening exposing the peripheral portion of the light display panel.
  • the light absorbing means is in a dark colour.
  • the peripheral portion of the light display panel is preferred to be in a ring shape.
  • Another aspect of the present invention is to provide a push button unit of a device that comprises a switch; a pusher panel including a resiliently operable pusher element, which, when manipulated, operates the switch; and a light display assembly including at least one light source; and a light display panel having an opening exposing at least a portion of the pusher element, whereby the pusher panel is disposed in between the light display panel and the light source, the light display panel allows dispersion of light from the light source and illumination of at least peripheral portion of the light display panel defining the boundary of the pusher element, wherein the switch can be operated by the pusher element without interfering with the light source.
  • the pusher element, light source and light display panel are aligned at a substantially similar center axis.
  • more than one light source is respectively disposed around the peripheral portion of the light display panel at a substantially equal distance between each other, while the pusher element and light display panel are aligned at a substantially similar center axis.
  • the pusher panel is made of a transparent material
  • the light display panel is made mainly of a light diffusing material such that the light display panel is translucent.
  • the pusher element is hinged onto a frame portion by one or more hinging elements.
  • the pusher element is resiliently hinged to execute an off center operation of the switch with respect to the center axis when the pusher element is manipulated.
  • the switch is positioned behind an unhinged portion of the pusher element.
  • the push button unit comprises a housing for accommodating the light source and the switch.
  • the housing is preferred to be in a light-absorbing colour.
  • the push button unit further comprises a panel cover disposed after the light display panel, with respect to light transmitting direction from the light source.
  • the panel cover is formed with at least an opening for exposing the peripheral portion of the light display panel and the pusher element.
  • the push button unit comprises a button cover for covering the pusher element.
  • the push button unit also comprises a light absorbing means including a first light absorbing layer attached to inner surface of the panel cover, and a second light absorbing layer attached to inner surface of the button cover.
  • the light absorbing means is formed with at least one opening for exposing peripheral portion of the light display panel.
  • the peripheral portion of the light display panel is in a ring shape.
  • the device is preferred to be an air conditioning unit.
  • Figure 1 shows a front view of a device having a push button unit incorporated with a light display assembly.
  • Figure 2 shows an exploded view of the push button unit.
  • Figure 3 shows a front view of the housing of the push button unit.
  • Figure 4 shows a front view of the pusher panel.
  • Figure 5 shows a side view of the pusher panel.
  • Figure 6 shows a front view of the light display panel.
  • Figure 7 shows a side view of the light display panel.
  • the present invention relates to a light display assembly which can be incorporated into a push button unit of a device (200) for providing visual indication of operation state of the device (200) or for achieving decorative purpose of the device (200).
  • the push button unit is manipulatable for operating a switch (122) that belongs to an electric circuit within the device (200).
  • the device (200) can be any electronic device such as an air conditioning unit. With the push button unit, operation of the device (200) for carrying out functions including actuating, stopping or changing mode of operation can be controlled.
  • the term‘manipulate’ and its derivatives used herein refer to any actions applied onto the push button unit for operating the switch (122), that in turn, regulates operation of the device (200).
  • the action which involves exertion of force onto the push button unit includes, but not limited to pressing, depressing, hitting, punching and mashing which shall hereby be collectively referred to as‘pushing’ .
  • Figure 1 presents an example of the present invention which incorporates the light display assembly as part of the push button unit for providing visual indication of the state of operation of the device (200) or for decorative purpose. Operation of the device (200) can be controlled automatically or manually. In an example of a manually controlled device (200) through the use of a switch (122), when the switch (122) is activated, the light display panel (140) emits a light of a first colour, or when the switch (122) is deactivated, the light display panel (140) stops emitting light or emits a light of a second colour.
  • the light display assembly can function independently without being associated with the push button unit.
  • Such light display assembly comprises at least one light source (121), and a light display panel (140) which permits dispersion of light from the light source (121) and illumination of at least peripheral portion (142) of the light display panel (140).
  • a push button unit related components including a pusher panel (130) having a pusher element (132), button cover (170) and switch (122) that shah be introduced hereinafter.
  • a light source (121) is accommodated within a housing (110) where light emitted from the light source (121) is allowed to transmit from the housing (110).
  • Figure 3 shows an example of the housing (110).
  • Light emitting diode is applied as the light source (121).
  • the housing (110) is fabricated with a material of light-absorbing colour, in particular dark colour for absorbing light and preventing light to be directed to other parts which may result in shadow, especially when the device has a white-coloured casing.
  • a resiliently operable pusher element (132) that is part of the pusher panel (130) is responsible for conducting the pushing mechanism of the push button unit.
  • the switch (122) that is also accommodated within the housing (110) is operated. More particularly, upon receiving the force exerted thereon, the pusher element (132) is brought to be in contact with the switch (122) to control operation of the switch (122).
  • the pusher element (132) is resiliently operable, the pusher element (132) is capable of returning to its un-pushed state upon contacting the switch (122).
  • a preferred embodiment of the pusher element (132) shown in Figure 4 is hinged to a frame portion (134) through one or more hinging elements (133).
  • the pusher element (132) preferably round in shape provides a surface for the action to be performed thereon to receive the force.
  • the portion of the pusher element (132) that is not hinged is moved towards the switch (122) that is positioned behind the unhinged portion of the pusher element (132), in particular behind the free end of the pusher element (132).
  • a projected member (136) can be incorporated on back surface of the pusher element (132) that corresponds to the position of the switch (122) for being in contact with the switch (122) when the force is exerted onto the pusher element (132) as depicted in Figure 5.
  • the switch (122) is positioned adjacent to the light source (121).
  • the switch (122) is also accommodated within the housing (110).
  • the hinging elements (133) are arranged and formed in a way to provide resilient characteristics for enabling smooth pushing feeling when exerting force onto the pusher element (132).
  • the hinging element (133) joins the frame portion (134) and pusher element (132). Gaps are formed in between the hinging elements (133), and/or in between the hinging element (133) and the frame portion (134), and/or in between the hinging element (133) and the pusher element (132).
  • the frame portion (134) acts as a periphery that surrounds the pusher element (132) and hinging elements (133). It is preferred that the pusher panel (130) is made of a transparent material that allows direct light transmission from the light source (121) for maximizing light transfer and prevent shadow of the hinging element (133) to be displayed.
  • a light display panel (140) as depicted in Figure 6 and 7 is disposed after the pusher element (132) with respect to light transmitting direction.
  • the light display panel (140) allows dispersion of light from the light source (121) and illumination of at least peripheral portion (142) of the light display panel (140) defining the boundary of the pusher element (132), that is, the light display panel (140) has a peripheral portion (142) that surrounds the pusher element (132) and an opening (143) surrounded by the peripheral portion (142) for exposing the pusher element (132).
  • the peripheral portion (142) is in a ring shape.
  • the light display panel (140) is made mainly of a light diffusing material for scattering light to promote transmission of diffused and soft light beam, instead of bright light beam spots.
  • the use of light diffusing material causes the light display panel (140) to be translucent.
  • another factor that contributes to uniform light dispersion is the translucency of the light display panel (140). The degree of translucency required to attain uniform light dispersion depends on the structure of the light source (121) as well as distance between the light source (121) and the light display panel (140).
  • a panel cover (160) that can be part of the casing of the device (200) is disposed after the light display panel (140) with respect to the light transmitting direction from the light source (121), with at least one opening (161) for exposing the peripheral portion (142) of the light display panel (140) and the pusher element (132).
  • the peripheral portion (142) of the light display panel (140) is fitted around inner boundary surface of the opening (161).
  • the present invention can comprise a button cover (170) for covering the pusher element (132) such that only the peripheral portion (142) of the light display panel (140) that emits light is presented at the external surface of the device (200).
  • the button cover (170) represents the outer appearance of the push button unit for the user to manipulate for operating the switch (122).
  • the push button could act as an ON/OFF button whereby the user can push the button cover (170) to actuate or stop operation of the device (200). It is preferred that the panel cover (160) and the button cover (170) are in a colour that matches with the casing. For instance, a white-coloured casing would match with a white-coloured panel cover (160) and button cover (170).
  • a light absorbing means (150) is disposed before the panel cover (160), with respect to light transmitting direction from the light source (121).
  • the light absorbing means (150) that includes a first light absorbing layer (l50a) is attached to inner surface of the panel cover (160), and a second light absorbing layer (l50b) that is attached to the inner surface of the button cover (170), in which the light-absorbing means (150) is formed with at least one opening (151) for exposing the peripheral portion (142) of the light display panel (140).
  • the opening (151) of the light absorbing means (150) follows substantially the shape of the peripheral portion (142) of the light display panel (140).
  • the light absorbing means (150) can be an adhesive sheet or paint in dark colour due to the colour’s light absorbing characteristics.
  • the number of light sources (121) is not limited.
  • the light source (121) is positioned before the light display panel (140) with respect to light transmitting direction.
  • One of the factors that contribute to even light distribution is the positioning of the light source (121).
  • the pusher element (132), the light source (121) and the light display panel (140), particularly the peripheral portion (142) are aligned at a substantially similar center axis for uniform light dispersion on the light display panel (140).
  • the button cover (170) that covers the pusher element (132) is also aligned at the same center axis.
  • the light sources (121) are respectively disposed around the peripheral portion (142) of the light display panel (140) at a substantially equal distance between each other while the pusher element (132) and the light display panel (140) are aligned at the same center axis.
  • the pusher element (132) is resiliently hinged to execute an off center operation of the switch (122) with respect to the center axis when the pusher element (132) is manipulated.
  • the switch (122) is positioned at a different axis from the light source (121), in particular behind the unhinged position of the pusher element (132).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Push-Button Switches (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

La présente invention concerne un ensemble d'affichage lumineux comprenant au moins une source de lumière (121) ; et un panneau d'affichage de lumière (140) permettant la dispersion de lumière à partir de la source de lumière (121) et l'éclairage d'au moins une partie périphérique (142) du panneau d'affichage lumineux (140) ; caractérisé en ce que le panneau d'affichage lumineux (140) est constitué principalement d'un matériau de diffusion de lumière de telle sorte que le panneau d'affichage lumineux (140) est translucide. L'ensemble d'affichage lumineux peut être incorporé dans une unité de bouton-poussoir.
PCT/MY2019/050068 2018-10-05 2019-10-02 Ensemble d'affichage lumineux WO2020071900A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980071705.3A CN112997267A (zh) 2018-10-05 2019-10-02 光显示组件
PH12021550725A PH12021550725A1 (en) 2018-10-05 2021-03-31 A light display assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2018703691A MY189395A (en) 2018-10-05 2018-10-05 A light display assembly
MYPI2018703691 2018-10-05

Publications (1)

Publication Number Publication Date
WO2020071900A1 true WO2020071900A1 (fr) 2020-04-09

Family

ID=70055628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2019/050068 WO2020071900A1 (fr) 2018-10-05 2019-10-02 Ensemble d'affichage lumineux

Country Status (4)

Country Link
CN (1) CN112997267A (fr)
MY (1) MY189395A (fr)
PH (1) PH12021550725A1 (fr)
WO (1) WO2020071900A1 (fr)

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US20040134765A1 (en) * 2003-01-07 2004-07-15 Pentax Corporation Push button device having an illuminator
EP1890310A1 (fr) * 2006-07-18 2008-02-20 Research In Motion Limited Clavier pour dispositif électronique portable avec guide de lumière
EP1962118A1 (fr) * 2007-02-23 2008-08-27 OMRON Corporation, a corporation of Japan Dispositif de guide d'ondes optiques, et appareil de guide d'ondes optiques
US20120140479A1 (en) * 2009-10-09 2012-06-07 Mitsubishi Electric Corporation Indicator apparatus
US20130083556A1 (en) * 2011-09-30 2013-04-04 Hon Hai Precision Industry Co., Ltd. Computer bezel with light-guide structure
US20180233303A1 (en) * 2017-02-16 2018-08-16 Chiun Mai Communication Systems, Inc. Luminated key structure and electronic device with the same

Also Published As

Publication number Publication date
MY189395A (en) 2022-02-09
PH12021550725A1 (en) 2021-10-25
CN112997267A (zh) 2021-06-18

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