CN110806818B - Section bar and infrared touch device with same - Google Patents

Section bar and infrared touch device with same Download PDF

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Publication number
CN110806818B
CN110806818B CN201810887562.0A CN201810887562A CN110806818B CN 110806818 B CN110806818 B CN 110806818B CN 201810887562 A CN201810887562 A CN 201810887562A CN 110806818 B CN110806818 B CN 110806818B
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China
Prior art keywords
infrared
profile
outer side
touch panel
panel
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CN201810887562.0A
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CN110806818A (en
Inventor
陈廷峰
刘欣逸
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Shenzhen Honghe Innovation Information Technology Co Ltd
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Shenzhen Honghe Innovation Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention discloses a section bar and an infrared touch device with the same. The section bar is provided with an infrared strip accommodating part and a panel edge accommodating part, which are respectively used for accommodating the infrared strip and the edge of the touch panel; the infrared strip accommodating parts and the panel edge accommodating parts are arranged in parallel in a first direction and at least partially overlap in a second direction, wherein the first direction is the length direction or the width direction of the touch panel, and the second direction is the thickness direction of the touch panel. When the profile is used as the frame of the infrared touch device, the infrared strip accommodated in the profile can be positioned outside the edge of the touch panel, and at least one part of the infrared strip and the touch panel are positioned at the same height, so that the protruding heights of the profile and the infrared strip relative to the touch panel can be obviously reduced, and the effect of approaching to the flatness can be achieved between the frame and the touch panel.

Description

Section bar and infrared touch device with same
Technical Field
The invention relates to the technical field of infrared touch devices, in particular to a section bar and an infrared touch device with the section bar.
Background
The infrared touch device (such as a multimedia integrated machine) in the prior art generally adopts an aluminum profile as a frame, and the frame is pressed on the outer side of a glass cover plate serving as a touch panel. In order for the infrared strip to be smoothly installed and function, the front surface of the bezel needs to be sufficiently sized above the glass cover plate in order to firmly install the infrared strip between the glass cover plate and the front surface of the bezel so that the infrared strip can emit and receive infrared rays transmitted along the surface of the glass cover plate. Because the infrared strip needs to be fixed by means of the structure of the aluminum profile, at least one dimension of the wall thickness of the profile exists between the infrared strip and the front surface of the frame and between the infrared strip and the glass cover plate. Therefore, the frame of the infrared touch device in the prior art is generally thicker, the front surface of the frame protrudes from the larger size of the glass cover plate, the frame is limited by the installation mode of the infrared strip in the aluminum profile and the fixing mode of the aluminum profile to the glass cover plate, the effect of approaching to a pure level between the frame and the glass cover plate cannot be achieved, and the attractiveness of the infrared touch device is poor.
Disclosure of Invention
Based on the above-mentioned current situation, a main object of the present invention is to provide a profile, which is used as a frame of an infrared touch device, and can effectively reduce a distance between a front surface of the frame and a touch panel, so as to achieve a near-flat effect between the touch panel and the frame.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a section bar for forming a frame of an infrared touch device, the section bar having an infrared strip accommodating portion and a panel edge accommodating portion for accommodating an infrared strip and an edge of a touch panel, respectively; the infrared strip accommodating parts and the panel edge accommodating parts are arranged in parallel in a first direction and at least partially overlap in a second direction, wherein the first direction is the length direction or the width direction of the touch panel, and the second direction is the thickness direction of the touch panel.
Preferably, the infrared strip receiving portion has an opening for partially exposing the received infrared strip, the profile has a front surface, and the opening is at least partially provided on the front surface.
Preferably, the side surface of the panel edge accommodating portion is a first limiting surface, the first limiting surface is used for limiting the outer end surface of the touch panel in the first direction, and a part of the opening is arranged on the first limiting surface.
Preferably, the bottom surface of the panel edge accommodating portion is a second limiting surface for providing an outward supporting effect for the touch panel in the second direction.
Preferably, the second limiting surface is located on a first protruding portion on the profile, and the protruding direction of the first protruding portion is parallel to the first direction.
Preferably, the profile further has a board accommodating portion for accommodating the infrared board, wherein the board accommodating portion accommodates the infrared board in such a manner that a width direction of the infrared board is inclined with respect to the first direction.
Preferably, the profile has a front surface, a first outer side surface and a second outer side surface which intersect in sequence, a first edge angle is formed between the front surface and the first outer side surface, and a second edge angle is formed between the first outer side surface and the second outer side surface, wherein the second outer side surface is inclined relative to the front surface.
Preferably, the second outer side surface is provided with a concave structure for installing the decoration member.
Preferably, the back side of the second outer side is provided with a first inner side surface, which is parallel to the second outer side surface, to serve as a positioning support surface.
Preferably, the profile further has a third outer side intersecting the second outer side, forming a third corner therebetween, wherein the third outer side is parallel to the front surface.
Preferably, the third outer side is located on a second protrusion on the profile, the protrusion direction of the second protrusion being parallel to the first direction.
Another object of the present invention is to provide an infrared touch device, which can achieve a nearly flat effect between a bezel and a touch panel. The technical proposal is as follows:
an infrared touch device comprising a bezel assembly and a touch panel secured by the bezel assembly, wherein the bezel assembly comprises the profile described previously.
Preferably, the frame assembly comprises an outer profile and an inner profile which are mutually matched, wherein the profiles are outer profiles.
Preferably, the inner molding has a panel supporting portion stacked on a bottom surface of the panel edge receiving portion for supporting the touch panel in the second direction.
Since the infrared strip accommodating parts and the panel edge accommodating parts are arranged in parallel in the length/width direction of the touch panel and at least partially overlap in the thickness direction of the touch panel, when the profile is used as a frame of an infrared touch device, the infrared strip accommodated in the profile can be positioned outside the edge of the touch panel, and at least one part of the infrared strip and the touch panel are positioned at the same height, so that the protrusion height of the profile and the infrared strip relative to the touch panel can be obviously reduced, and the effect of approaching to a pure level can be achieved between the frame and the touch panel.
Drawings
Preferred embodiments of the profile and the infrared touch device according to the present invention will be described below with reference to the accompanying drawings. In the figure:
fig. 1 is a schematic cross-sectional view of a profile according to a preferred embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of the profile of FIG. 1 after installation of an infrared strip and an infrared card;
FIG. 3 is a schematic cross-sectional view of a rim assembly in accordance with a preferred embodiment of the invention;
fig. 4 is a schematic cross-sectional view of an edge portion of an infrared touch device according to a preferred embodiment of the present invention.
Detailed Description
In order to solve the problems of excessive thickness and excessive height of the frame of the infrared touch device in the prior art, the first aspect of the present invention provides a profile 1, the cross section of which is shown in fig. 1-2, which is used for forming the frame of the infrared touch device, so that the thickness of the frame can be reduced, the height of the protrusion of the frame can be reduced, and the aesthetic property of the infrared touch device can be improved. On this basis, a second aspect of the present invention provides a frame assembly of an infrared touch device, a cross section of which is shown in fig. 3, and a third aspect of the present invention provides an infrared touch device, a cross section of an edge portion of which is shown in fig. 4.
Referring first to fig. 1-4, a profile 1 of the present invention is used to form a frame of an infrared touch device (see fig. 4), the profile 1 having an infrared strip receiving portion 101 and a panel edge receiving portion 102 for receiving an infrared strip (see fig. 2 and 4) and receiving an edge of a touch panel 4 (e.g., tempered glass, etc.) (see fig. 4), respectively; the infrared strip accommodating portion 101 and the panel edge accommodating portion 102 are arranged in parallel in a first direction, and at least partially overlap in a second direction, wherein the first direction is a length direction or a width direction of the touch panel 4, that is, a horizontal direction in the drawing, and the second direction is a thickness direction of the touch panel 4, that is, a vertical direction in the drawing, that is, a height direction. That is, the infrared-band housing portion 101 and the panel-edge housing portion 102 do not contact each other in the projection in the second direction, and overlap at least partially in the projection in the first direction.
Since the infrared strip housing portions 101 and the panel edge housing portions 102 are arranged side by side in the first direction and at least partially overlap in the second direction, when the profile 1 is used as a frame of an infrared touch device, the infrared strip 2 housed inside the profile is located outside the edge of the touch panel 4, and at least a part of the infrared strip 2 and the touch panel 4 are located at the same height position, for example, the touch panel 4 is completely located within the height range of the infrared strip 2 (as shown in fig. 4), so that the protruding height of the profile 1 and the infrared strip 2 relative to the touch panel 4 can be significantly reduced, and a nearly flat effect can be achieved between the frame and the touch panel 4.
Preferably, as shown in fig. 1-2, the infrared strip receiving portion 101 has an opening for partially exposing the received infrared strip 2 for emitting and receiving infrared rays, and the profile 1 has a front surface 104, the opening being at least partially provided on the front surface 104. This configuration allows the outer edge of the infrared stripe 2 in the second direction (which may be referred to as the upper edge according to the orientation of the drawing) to be exposed from said front surface 104, which allows no structure of the profile 1 beyond the outer edge of the infrared stripe 2, thereby further reducing the protrusion height of the profile 1 and the infrared stripe 2 with respect to the touch panel 4, e.g. the front surface 104 of the profile 1 may be flush with the outer edge of the infrared stripe 2 or lower than the outer edge of the infrared stripe 2. In contrast, in the similar sectional materials in the prior art, the opening of the corresponding infrared strip accommodating part and the front surface of the sectional material are completely disjoint, and a certain distance is still remained between the front surface of the sectional material and the outer side edge of the infrared strip, and the distance is directly reflected as a part of the protrusion height of the frame.
Preferably, as shown in fig. 1, the side surface of the panel edge accommodating portion 102 is a first limiting surface 105, which is used for limiting the outer end surface of the touch panel 4 in the first direction, as shown in fig. 4. A part of the opening of the infrared ray receiving section 101 is provided on the first limiting surface 105. That is, the opening of the infrared ray receiving portion 101 is provided obliquely at the position where the front surface 104 of the profile 1 and the first stopper surface 105 intersect, so that the limited space can be fully utilized, and the projection heights of the profile 1 and the infrared ray 2 with respect to the touch panel 4 can be further reduced.
Preferably, as shown in fig. 1, the bottom surface of the panel edge accommodating portion 102 is a second limiting surface 106 for providing an outward supporting effect to the touch panel 4 in the second direction.
For example, as shown in fig. 4, in the illustrated infrared touch device, the profile 1 is an outer profile, and an inner profile 5 is further disposed on the inner side thereof, and the inner profile 5 and the inner profile are mutually matched to fix the touch panel 4, wherein the inner profile 5 has a panel supporting portion 501 (see fig. 3), and the panel supporting portion 501 is stacked on the bottom surface (i.e., the second limiting surface 106) of the panel edge accommodating portion 102, so as to support the touch panel 4 in the second direction. The touch panel 4 may be fixed to the panel support 501 by, for example, gluing while its outer end face is restrained by the first restraining face 105.
In an alternative embodiment, the touch panel 4 may also be directly glued to the second stop surface 106.
The profile 1 of the present invention does not comprise any structure for compacting or restraining the front face of the touch panel 4, so that the touch panel 4 can be directly put in place and glued.
Preferably, as shown in fig. 1, the second limiting surface 106 is located on a first protruding portion 107 on the profile 1, and the protruding direction of the first protruding portion 107 is parallel to the first direction, preferably a slat structure extending towards one side of the touch panel 4. The first protrusion 107 may be used to limit the inner profile 5, as shown in fig. 3, where the inner profile 5 is provided with a corresponding groove 502, and the groove 502 cooperates with the first protrusion 107 to implement the limit of the profile 1 and the inner profile 5 in the second direction.
Preferably, as shown in fig. 1, the profile 1 further has a board receiving portion 103 for receiving an infrared board 3 (PCBA), as shown in fig. 2, wherein the board receiving portion 103 receives the infrared board 3 such that a width direction of the infrared board 3 is inclined with respect to the first direction, and an inclination angle is preferably 30-60 degrees. As shown in fig. 1 and 2, the board housing portion 103 is located behind the infrared strip housing portion 101, so that the infrared board 3 can emit infrared light to the infrared strip 3 and receive infrared light from the infrared strip. As shown in fig. 2, the infrared strip housing part 101 houses the infrared strip 2 such that the bottom surface of the infrared strip 2 is inclined, wherein the bottom surface of the infrared strip 2 is parallel to the main body of the infrared card 3.
Preferably, as shown in fig. 1, the profile 1 has a front surface 104, a first outer side 108 and a second outer side 109 intersecting in sequence, a first edge being formed between the front surface 104 and the first outer side 108, and a second edge being formed between the first outer side 108 and the second outer side 109, wherein the second outer side 109 is inclined with respect to the front surface 104 and preferably parallel to the main body portion of the infrared board 3, as shown in fig. 2. The included angle at the first corner is preferably a right angle, the included angle at the second corner is preferably an obtuse angle, and preferably, the first corner and the second corner may be provided with a chamfer or a radius. The inclined arrangement of the second side 109 allows on the one hand to save material for the profile 1 and on the other hand to effectively reduce the local thickness of the profile 1 and thus the thickness of the corresponding frame.
Preferably, as shown in fig. 1, the second outer side 109 is provided with a recess structure 110 for mounting a decorative member, such as a decorative strip 6, etc., as shown in fig. 4. Preferably, as shown in fig. 1, one or more grooves 111 may be formed at the bottom of the recess structure 110 to accommodate adhesive to enhance the installation firmness of the decoration device.
Preferably, the back side of the second outer side 109 is provided with a first inner side 114, and the first inner side 114 is parallel to the second outer side 109 to serve as a positioning support surface. As shown in fig. 3, the inner profile 5 is provided with a corresponding inclined surface 503, and the inclined surface 503 abuts against the first inner side surface 114, so as to limit the inner profile 5 in the first direction. The engagement of the inclined surface 503 with the first inner side surface 114, in combination with the engagement of the groove 502 with the first protrusion 107, can conveniently achieve the limitation and support of the inner profile 5 in the first direction and the second direction.
Preferably, the profile 1 further has a third outer side 112 intersecting the second outer side 109, forming a third corner therebetween, wherein the third outer side 112 is parallel to the front surface 104. Preferably, the included angle at the third corner is also an obtuse angle, and the third corner may be chamfered or rounded. The third outer side 112 forms the rear surface of the frame, which effectively improves the integrity of the appearance of the frame.
Preferably, as shown in fig. 1, the third outer side 112 is located on a second protrusion 113 on the profile 1, the direction of protrusion of the second protrusion 113 being parallel to the first direction, i.e. to the direction of protrusion of the first protrusion 107. The second protrusions 113 are preferably in the form of a strip for shielding and/or securing part of the structure of the corresponding infrared touch device on the rear side, including but not limited to the inner profile 5, as shown in fig. 3-4.
As shown in fig. 3, the frame assembly of the infrared touch device of the present invention includes an outer profile and an inner profile 5 that are matched with each other, wherein the outer profile is the profile 1 provided in the foregoing of the present invention.
The bezel assembly of the present invention enables the mounting of the infrared stripe 2 and the touch panel 4 while enabling a reduction in the protrusion height of the bezel front surface 104 relative to the touch panel 4.
As shown in fig. 4, the infrared touch device of the present invention comprises the aforementioned profile 1, and preferably comprises the aforementioned bezel assembly and a touch panel 4, said touch panel 4 being secured by said bezel assembly.
The infrared touch device can be an interactive screen, an electronic whiteboard, an electronic blackboard, a multimedia integrated machine or a touch integrated machine and the like.
The infrared touch device can achieve the effect of being nearly flat between the frame and the touch panel, and can achieve or be close to the appearance effect of the capacitive screen touch device. By adopting the profile 1 provided by the invention, the infrared touch device can also reduce the width of black silk screen printing commonly used in the prior art so as to achieve the effect of narrow frame.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.

Claims (13)

1. A section bar for forming a frame of an infrared touch device, the section bar having an infrared strip accommodating portion and a panel edge accommodating portion for accommodating an infrared strip and an edge of a touch panel, respectively; the infrared strip accommodating part and the panel edge accommodating part are arranged in parallel in a first direction and at least partially overlapped in a second direction, wherein the first direction is the length direction or the width direction of the touch panel, and the second direction is the thickness direction of the touch panel;
the infrared band receptacle having an opening, the profile having a front surface, the opening being at least partially disposed on the front surface;
the side surface of the panel edge accommodating part is a first limiting surface, and a part of the opening is arranged on the first limiting surface;
the bottom surface of the panel edge accommodating part is a second limiting surface;
the second limiting surface is positioned on a first protruding portion on the profile, and the protruding direction of the first protruding portion is parallel to the first direction.
2. Profile according to claim 1, characterized in that the opening is used to partially expose the received infrared strip.
3. The profile according to claim 1, wherein the first limiting surface is used for limiting an outer end surface of the touch panel in the first direction.
4. Profile according to claim 1, characterized in that the second stop surface is adapted to provide an outward supporting effect for the touch panel in the second direction.
5. The profile according to any one of claims 1 to 4, further comprising a card receiving portion for receiving an infrared card, wherein the card receiving portion receives the infrared card such that a width direction of the infrared card is inclined with respect to the first direction.
6. The profile according to one of claims 1-4, characterized in that the profile has a front surface, a first outer side and a second outer side intersecting in sequence, a first angle being formed between the front surface and the first outer side, a second angle being formed between the first outer side and the second outer side, wherein the second outer side is inclined with respect to the front surface.
7. Profile according to claim 6, characterized in that the second outer side is provided with a recess for mounting a decorative element.
8. Profile according to claim 6, characterized in that the back side of the second outer side is provided with a first inner side, which is parallel to the second outer side for use as a positioning bearing surface.
9. The profile of claim 6, further comprising a third outer side intersecting the second outer side, forming a third corner therebetween, wherein the third outer side is parallel to the front surface.
10. Profile according to claim 9, characterized in that the third outer side is located on a second bulge on the profile, the bulge direction of the second bulge being parallel to the first direction.
11. An infrared touch device comprising a bezel assembly and a touch panel, said touch panel being secured by said bezel assembly, characterized in that said bezel assembly comprises a profile according to one of claims 1-10.
12. The infrared touch device of claim 11, wherein the bezel assembly comprises an outer profile and an inner profile that cooperate with each other, wherein the profile of one of claims 1-10 is an outer profile.
13. The infrared touch device according to claim 12, wherein the inner profile has a panel supporting portion that is stacked on a bottom surface of the panel edge receiving portion for supporting the touch panel in the second direction.
CN201810887562.0A 2018-08-06 2018-08-06 Section bar and infrared touch device with same Active CN110806818B (en)

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Application Number Priority Date Filing Date Title
CN201810887562.0A CN110806818B (en) 2018-08-06 2018-08-06 Section bar and infrared touch device with same

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CN110806818A CN110806818A (en) 2020-02-18
CN110806818B true CN110806818B (en) 2023-05-12

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Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8676007B2 (en) * 2008-06-19 2014-03-18 Neonode Inc. Light-based touch surface with curved borders and sloping bezel

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