WO2023056765A1 - 红外触控屏和显示装置 - Google Patents

红外触控屏和显示装置 Download PDF

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Publication number
WO2023056765A1
WO2023056765A1 PCT/CN2022/102878 CN2022102878W WO2023056765A1 WO 2023056765 A1 WO2023056765 A1 WO 2023056765A1 CN 2022102878 W CN2022102878 W CN 2022102878W WO 2023056765 A1 WO2023056765 A1 WO 2023056765A1
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WO
WIPO (PCT)
Prior art keywords
light
infrared
touch screen
cover plate
screen according
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.)
Ceased
Application number
PCT/CN2022/102878
Other languages
English (en)
French (fr)
Inventor
叶雄波
黄华
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.)
Shenzhen Huasheng Software Technology Co Ltd
TCL Business Information Technology Huizhou Co Ltd
Original Assignee
Shenzhen Huasheng Software Technology Co Ltd
TCL Business Information Technology Huizhou Co 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 Shenzhen Huasheng Software Technology Co Ltd, TCL Business Information Technology Huizhou Co Ltd filed Critical Shenzhen Huasheng Software Technology Co Ltd
Priority to US18/569,691 priority Critical patent/US12498828B2/en
Priority to EP22877790.0A priority patent/EP4414818A4/en
Publication of WO2023056765A1 publication Critical patent/WO2023056765A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04109—FTIR in optical digitiser, i.e. touch detection by frustrating the total internal reflection within an optical waveguide due to changes of optical properties or deformation at the touch location

Definitions

  • the present application belongs to the field of touch technology, and in particular relates to an infrared touch screen and a display device.
  • the infrared touch screen is a touch screen formed by setting an infrared light source and an infrared receiver on the surface of the screen. When any touching object touches the surface of the screen and blocks the infrared light emitted by the infrared light source to the infrared receiver, the infrared touch screen will immediately Touch screen operations that detect touching objects.
  • infrared touch screens Compared with capacitive touch screens, infrared touch screens have the advantages of low manufacturing cost, easy installation, high resistance to violence and high reliability. Therefore, the infrared touch screen is widely used in various fields. However, the frame of the existing infrared touch screen is too high relative to the surface of the screen, which affects the overall visual perception of the infrared touch screen.
  • Embodiments of the present application provide an infrared touch screen and a display device to solve the problem that the frame of the infrared touch screen protrudes too high relative to the screen surface.
  • an infrared touch screen including:
  • the cover plate has a light-incoming surface and a light-outgoing surface oppositely arranged, and the light-incoming surface and the light-outgoing surface are connected through a first side;
  • an infrared light source for emitting infrared light
  • the first light-transmitting frame is arranged on one side of the first side of the cover plate and connected with the cover plate, the first light-transmitting frame is provided with a first installation groove, and the infrared light source is installed on the In the first installation groove, and the infrared light source is located on one side of the light-incoming surface of the cover plate, and the side of the first light-transmitting frame facing away from the infrared light source is provided with a first raised portion At least part of the infrared light from the infrared light source can enter the first protrusion, and the first protrusion is used to emit the at least part of the infrared light in a direction parallel to the light-emitting surface.
  • the embodiment of the present application also provides an infrared touch screen, including:
  • the cover plate has a light-incoming surface and a light-outgoing surface oppositely arranged, and the light-incoming surface and the light-outgoing surface are connected through a second side;
  • an infrared receiver for receiving infrared light
  • the second light-transmitting frame is arranged on one side of the second side of the cover plate and connected with the cover plate, the second light-transmitting frame is provided with a second installation groove, and the infrared receiver is installed on In the second installation groove, and the infrared receiver is located on one side of the light-incoming surface of the cover plate, the side of the second light-transmitting frame facing away from the infrared receiver is provided with a second The protruding part, the second protruding part is used to change the propagation direction of the infrared light propagating in a direction parallel to the light-emitting surface, so as to emit it to the infrared receiver.
  • the embodiment of the present application further provides a display device, including the above-mentioned infrared touch screen.
  • the infrared touch screen and the display device provided by the embodiment of the present application adopt the first light-transmitting frame and endow the first light-transmitting frame with two functions, that is, the first light-transmitting frame not only plays the role of supporting the cover plate, but also acts as a To conduct the light, by directly setting the first raised part that can change the light direction on the side of the first light-transmitting frame facing away from the infrared light source, the setting of the filter bar can be omitted, and the filter bar can be reduced.
  • the installation of the first light-transmitting frame does not need to be provided with an installation structure for installing the filter strip, thereby reducing the size of the first light-transmitting frame, and the infrared light source is arranged in the first light-transmitting frame and located on the cover plate
  • the infrared light emitted by the infrared light source can directly exit from the first installation groove to the first protrusion, and there is no need to deliberately set a light outlet at the first installation groove.
  • the infrared touch screen of the embodiment of the present application arranges the infrared light source on the side of the light-incoming surface of the cover, so that the first light-transmitting frame is compared to the The protruding part of the light-emitting surface of the cover plate does not need to reserve too much thickness for installing the infrared light source. Furthermore, in the embodiment of the present application, the thickness of the portion of the frame of the infrared touch screen that protrudes relative to the light-emitting surface of the cover plate may be lower.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • FIG. 2 is a cross-sectional view along the P-P direction of the infrared touch screen of the display device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of one side of the infrared light source in the infrared touch screen shown in FIG. 2 .
  • FIG. 4 is a schematic structural diagram of one side of the infrared receiver in the infrared touch screen shown in FIG. 2 .
  • Embodiments of the present application provide an infrared touch screen and a display device to solve the problem that the frame of the infrared touch screen protrudes too high relative to the screen surface.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • the embodiment of the present application provides an infrared touch screen 10 , and the infrared touch screen 10 can be applied in the display device 1 .
  • the display device 1 may include any product or component with a display function such as a liquid crystal display panel, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, or a navigator.
  • the structure is not limited.
  • the infrared touch screen 10 provided in the embodiment of the present application can also be used alone instead of being applied to the display device 1 , which is not limited in the embodiment of the present application.
  • the infrared touch screen 10 may include a cover plate 11 , an infrared light source 12 , a first transparent frame 13 , an infrared receiver 14 and a second transparent frame 15 .
  • the cover plate 11 has a light-incoming surface 111 and a light-emitting surface 112 disposed opposite to each other, and the cover plate 11 may be an acrylic cover plate, a glass cover plate or other cover plates with light-transmitting properties.
  • the infrared light source 12 and the infrared receiver 14 are arranged oppositely.
  • the infrared light source 12 is fixed on the display device 1 through the first transparent frame 13 for emitting infrared light.
  • the infrared receiver 14 is fixed on the display device 1 through the second transparent frame 15 , and the infrared receiver 14 is used to receive the infrared light emitted by the infrared light source 12 .
  • the infrared light emitted by the infrared light source 12 is directed toward the infrared receiver 14 on the outside of the side of the cover 11 provided with the light emitting surface 112 .
  • the infrared light emitted by the infrared light source 12 to the infrared receiver 14 is blocked, and it can be detected that the user's finger or other touching object touches the cover 11 the touch location.
  • multiple sets of infrared light sources 12 and infrared receivers 14 that cooperate with each other may also be provided.
  • multiple beams of infrared light can be arranged in a criss-cross pattern to form an infrared light network criss-crossing on the surface of the light-emitting surface 112 . Therefore, when the user's finger or other touching object touches the light-emitting surface 112, it will block the infrared light in the horizontal and vertical directions in the infrared light network, and then the position of the user or other touching object on the light-emitting surface 112 of the cover plate 11 can be quickly located. Specific touch location.
  • the cover plate 11 is disposed on the surface of the display component of the display device 1 to protect the display component of the display device 1 .
  • the light-incoming surface 111 of the cover plate 11 is attached to the display assembly, so that the content of the pattern displayed on the display assembly, etc., can pass through the light-incoming surface 111 and the light-emitting surface 112 of the cover plate 11 in turn and can be captured by the light-incoming surface 111 of the cover plate 11.
  • the area other than the light-emitting surface 112 is observed.
  • FIG. 3 is a schematic structural diagram of one side of the infrared light source in the infrared touch screen shown in FIG. 2 .
  • the liquid crystal module 20 of the display component can be bonded and fixed on the light-incoming surface 111 of the cover plate 11 through the VHB buffer sealant 30 .
  • the space on the side of the light-incoming surface 111 of the cover 11 is defined as the in-screen space
  • the space on the side of the light-emitting surface 112 of the cover 11 is defined as the off-screen space.
  • a frame is set on the edge of the cover plate, and the infrared light source and the infrared receiver are arranged in the frame, and the frame needs to be provided with an opening for relationship conduction, so that the light of the infrared light source can be transmitted on the side of the light emitting surface of the cover plate.
  • Conduction, the infrared light source and the infrared receiver are all located on the side of the light-emitting surface of the cover, that is, in the space outside the screen.
  • at least a part of the frame is required to be located on the side of the light-emitting surface of the cover, that is, at least part of it is located in the space outside the screen.
  • This part needs to be thick enough to install the infrared light source and the infrared receiver. Therefore, in the related art, the thickness of the protruding part of the frame of the infrared touch screen compared with the cover is difficult to be further reduced due to the limitation of the volume of the infrared light source.
  • an additional filter bar will be installed.
  • the frame needs to be equipped with a structure for installing the filter bar, which further increases the size of the frame, which will reduce the user's overall perception of the infrared touch screen and occupy Too much space.
  • the first light-transmitting frame 13 and the cover plate 11 are included, and the cover plate 11 has a relatively
  • the light entrance surface 111 and the light exit surface 112 are provided, and the light entrance surface 111 and the light exit surface 112 are connected by the first side surface 113 .
  • the first light-transmitting frame 13 can be arranged on one side of the first side 113 of the cover plate 11 and connected with the cover plate 11, the first light-transmitting frame 13 is provided with a first installation groove 131, and the infrared light source 12 is installed in the first In the installation groove 131, and the infrared light source 12 is located on one side of the light-incoming surface 111 of the cover plate 11 (that is, the infrared light source 12 is arranged in the space inside the screen of the cover plate 11), and the first light-transmitting frame 13 faces away from the side of the infrared light source 12
  • One side is provided with a first protruding portion 132 , and the first protruding portion 132 is used to emit at least part of the infrared light emitted by the infrared light source 12 into the first protruding portion 132 in a direction parallel to the light-emitting surface 112 .
  • the first light-transmitting frame 13 used to install and fix the infrared light source 12 is raised compared to the light-emitting surface 112 of the cover plate 11 The thickness can be greatly reduced.
  • the first light-transmitting frame 13 is used to endow the first light-transmitting frame 13 with two functions, that is, the first light-transmitting frame 13 not only plays the role of supporting the cover plate 11, but also plays the role of conducting light.
  • the first raised portion 132 capable of changing the light direction is provided, so the setting of the filter strip can be omitted, and the installation of the filter strip is reduced.
  • the light frame 13 does not need to be provided with an installation structure for installing the filter bar, thereby reducing the size of the first light-transmitting frame 13, and the infrared light source 12 is arranged in the first light-transmitting frame 13 and located at the entrance of the cover plate 11.
  • the infrared light emitted by the infrared light source 12 can directly exit the first installation groove 131 to the first raised portion 132, without the need for special mounting on the first installation.
  • a light outlet is provided at the groove 131, and the structure is simpler. After the infrared light is changed in direction by the first raised portion 132, the light can propagate along the direction parallel to the light outlet surface 112 on the side of the light outlet surface 112 of the cover plate 11, and this part of the infrared light can be to the infrared receiver 14.
  • the thickness of the part of the frame of the infrared touch screen 10 protruding relative to the light-emitting surface 112 of the cover 11 in the embodiment of the present application can be lower.
  • the first light-transmitting frame 13 can be PC (Polycarbonate, polycarbonate, alias, PC plastic) or PMMA (polymethyl methacrylat, polymethyl methacrylate, another name, plexiglass, acrylic) and other materials with light-transmitting properties, the first raised portion 132 is directly formed on the first light-transmitting frame 13, that is, the first light-transmitting frame 13 Formed integrally with the first protruding portion 132 .
  • PC Polycarbonate, polycarbonate, alias, PC plastic
  • PMMA polymethyl methacrylat, polymethyl methacrylate, another name, plexiglass, acrylic
  • the first raised portion 132 is located on the side of the first side 113 of the cover 11 as a whole, that is, the first raised portion 132 will not block To the light-emitting surface 112 of the cover plate 11, the first raised portion 132 protrudes upward relative to the plane where the light-emitting surface 112 of the cover plate 11 is located, so that the light that changes direction through the first raised portion 132 can travel along the direction parallel to the light-emitting surface.
  • the direction of 112 propagates on the side of the light emitting surface 112 of the cover plate 11 .
  • the first light-transmitting frame 13 is also set so as not to block the light-emitting surface 112 of the cover plate 11 .
  • the first transparent frame 13 has a first installation portion 133 , and the first installation portion 133 is provided with a first installation groove 131 for installing the infrared light source 12 . It can be understood that when the infrared light source 12 is installed in the first installation groove 131 , the light can be directly emitted from the first installation groove 131 to the first protrusion 132 .
  • the first transparent frame 13 has a second installation portion 134 .
  • the second mounting portion 134 is disposed on a side of the first mounting portion 133 facing the light-incoming surface 111 .
  • the second installation portion 134 is bonded to the light-incoming surface 111 of the cover plate 11 by the first double-sided adhesive 40 .
  • the side of the second installation part 134 facing the light-incoming surface 111 can be provided with a first glue groove 1341, and the side of the first double-sided adhesive tape 40 facing away from the light-incoming surface 111 is bonded to form the first adhesive groove 1341.
  • the side of the first double-sided adhesive tape 40 facing the light-incoming surface 111 is glued on the light-incoming surface 111 .
  • the cover plate 11 When the thickness of the first double-sided adhesive 40 is equal to the depth of the first adhesive groove 1341, the cover plate 11 can just be pressed against the surface of the second installation part 134 facing the light-incoming surface 111 after being bonded, so as to avoid the first double-sided adhesive tape.
  • the surface glue 40 causes partial warping of the cover plate 11 relative to the second installation portion 134 .
  • the first light-transmitting frame 13 of this structure does not need to be provided with a fixed connection structure with the light-emitting surface 112 on the light-emitting surface 112 of the cover plate 11, and the first light-transmitting frame 13 will not block the light-emitting surface 112 of the cover plate 11.
  • the screen-to-body ratio is improved, and the raised height of the first raised portion 132 relative to the plane where the light-emitting surface 112 is located can also be reduced.
  • the first mounting portion 133 may be provided with a first weight reducing hole 1331 to reduce the overall weight of the infrared touch screen 10 .
  • the first raised portion 132 may have a first total reflection surface 1321 and a first refraction surface 1322.
  • the first total reflection surface 1321 is located on the side of the first raised portion 132 away from the first side surface 113 , and is inclined relative to the light-emitting surface 112 , so that at least part of the infrared light emitted by the infrared light source 12 into the first raised portion 132 can be injected. Total reflection towards the cover plate 11.
  • the first refraction surface 1322 is located between the first total reflection surface 1321 and the first side surface 113, and is inclined relative to the light-emitting surface 112, so as to be able to refract at least part of the infrared light totally reflected by the first total reflection surface 1321 to a direction parallel to the
  • the first protruding portion 132 is emitted from the direction of the light emitting surface 112 .
  • the angle of inclination of the first total reflection surface 1321 can be set according to the actual situation, as long as at least part of the infrared light emitted by the infrared light source 12 into the first raised portion 132 can be totally reflected towards the cover plate 11, And at least part of the infrared light totally reflected by the first total reflection surface 1321 is refracted through the first refraction surface 1322 to exit the first protrusion 132 along a direction parallel to the light exit surface 112 .
  • a textured structure can be provided on the side of the first total reflection surface 1321 away from the first refracting surface 1322 , and the textured structure can prevent external infrared light from entering the first raised portion 132 to a certain extent. In order to prevent external light from interfering with the work of the infrared touch screen 10 .
  • the texture structure may be formed by etching on the side of the first total reflection surface 1321 away from the first refraction surface 1322 .
  • the texture structure can also be replaced by a first reflective layer made of a reflective material such as a silver reflective film, that is, a silver reflective film can be provided on the side of the first total reflection surface 1321 away from the first refraction surface 1322 .
  • FIG. 4 is a schematic structural diagram of the infrared receiver side of the infrared touch screen shown in FIG. 2 .
  • the cover plate 11 has a light entrance surface 111 and a light exit surface 112 that are oppositely arranged, and the light entrance surface 111 and the light exit surface 112 are oppositely arranged.
  • the light emitting surface 112 is also connected by a second side 114 , wherein the second side 114 is opposite to the first side 113 .
  • the second light-transmitting frame 15 can be arranged on one side of the second side 114 of the cover plate 11 and connected to the cover plate 11, the second light-transmitting frame 15 is provided with a second installation groove 151, and the infrared receiver 14 is installed on the second side of the cover plate 11.
  • Two installation slots 151, and the infrared receiver 14 is located on one side of the light-incoming surface 111 of the cover plate 11 (that is, the infrared receiver 14 is arranged in the screen space of the cover plate 11), and the second light-transmitting frame 15 faces away from the infrared
  • One side of the receiver 14 is provided with a second protruding portion 152, wherein the second protruding portion 152 is arranged opposite to the first protruding portion 132, and the second protruding portion 152 can change the output of the first protruding portion 132, And parallel to the propagating direction of at least part of the infrared light on the light emitting surface 112 , so as to direct it to the infrared receiver 14 .
  • the second light-transmitting frame 15 and the second raised portion 152 on it enable the infrared receiver 14 disposed in the space inside the screen to accept at least part
  • the infrared light transmitted in the direction of 112 is used to realize the touch function of the infrared touch screen 10 .
  • the second light-transmitting frame 15 used to install and fix the infrared receiver 14 is convex compared to the light-emitting surface 112 of the cover plate 11
  • the thickness of the raised part can be greatly reduced.
  • the second light-transmitting frame 15 is used to endow the second light-transmitting frame 15 with two functions, that is, the second light-transmitting frame 15 not only plays the role of supporting the cover plate 11, but also plays the role of conducting light.
  • the second raised portion 152 capable of changing the light direction is provided, so the setting of the filter strip can be omitted, and the installation of the filter strip is reduced.
  • the light-transmitting frame 15 does not need to be provided with an installation structure for installing the filter bar, thereby reducing the size of the second light-transmitting frame 15, and the infrared receiver 14 is arranged in the second light-transmitting frame 15 and located on the cover plate 11
  • the second light-transmitting frame 15 itself has light-transmitting characteristics, the infrared light emitted from the first raised portion 132 to the second raised portion 152 can be directly transmitted from the second raised portion 152
  • the infrared receiver 14 in the second installation groove 151 there is no need to deliberately set a light outlet at the second installation groove 151 , and the structure is simpler.
  • the thickness of the part of the frame of the infrared touch screen 10 protruding relative to the light-emitting surface 112 of the cover 11 in the embodiment of the present application can be lower.
  • the second light-transmitting frame 15 can adopt PC (Polycarbonate, polycarbonate, alias, PC plastic) or PMMA (polymethyl methacrylat, polymethyl methacrylate, another name, plexiglass, acrylic) and other materials with light-transmitting properties, the second raised portion 152 is directly formed on the second light-transmitting frame 15, that is, the second light-transmitting frame 15 Formed integrally with the second protruding portion 152 .
  • PC Polycarbonate, polycarbonate, alias, PC plastic
  • PMMA polymethyl methacrylat, polymethyl methacrylate, another name, plexiglass, acrylic
  • the second raised portion 152 protrudes upward relative to the plane where the light-emitting surface 112 of the cover plate 11 is located, and the second raised portion 152 is arranged opposite to the first raised portion 132, so that through The light whose direction is changed by the first protruding portion 132 can enter the second protruding portion 152 , and then enter the infrared receiver 14 after changing the direction through the second protruding portion 152 .
  • the second light-transmitting frame 15 is also arranged so as not to block the light-emitting surface 112 of the cover plate 11 .
  • the second transparent frame 15 has a third installation portion 153 , and the third installation portion 153 is provided with a second installation slot 151 for installing the infrared receiver 14 .
  • the second transparent frame 15 has a fourth mounting portion 154 .
  • the fourth mounting portion 154 is disposed on a side of the third mounting portion 153 facing the light-incoming surface 111 .
  • the fourth mounting portion 154 is bonded to the light-incoming surface 111 of the cover plate 11 by the second double-sided adhesive 50 .
  • the side of the fourth installation part 154 facing the light-incoming surface 111 can be provided with a second adhesive groove 1541, and the second double-sided adhesive 50 is glued on the side facing away from the light-incoming surface 111 to form the second adhesive groove 1541.
  • the side of the second double-sided adhesive 50 facing the light-incoming surface 111 is glued on the light-incoming surface 111 .
  • the cover plate 11 can just be pressed against the surface of the fourth installation part 154 facing the light-incoming surface 111 after bonding, so as to avoid the second double-sided adhesive
  • the surface glue 50 causes partial warpage of the cover plate 11 relative to the fourth installation portion 154 .
  • the second light-transmitting frame 15 of this structure does not need to be provided with a connection structure fixed to the light-emitting surface 112 on the light-emitting surface 112 of the cover plate 11, and the second light-transmitting frame 15 will not block the light-emitting surface 112 of the cover plate 11.
  • the screen-to-body ratio is improved, and the raised height of the second raised portion 152 relative to the plane where the light-emitting surface 112 is located can also be reduced.
  • the third mounting portion 153 may be provided with a second weight-reducing hole 1531 , so as to reduce the overall weight of the infrared touch screen 10 .
  • the second raised portion 152 may have a second total reflection surface 1521 and a second refractive surface 1522.
  • the second refraction surface 1522 is located on the side of the second protrusion 152 close to the second side 114, and is inclined relative to the light-emitting surface 112, so as to refract at least part of the infrared light emitted by the first protrusion 132 to the second protrusion.
  • the second total reflection surface 1521 is located on the side of the second raised portion 152 away from the cover plate 11, and is inclined relative to the light-emitting surface 112, so as to be able to totally reflect at least part of the infrared light refracted by the second refraction surface 1522 to the infrared receiver 14.
  • the angle of inclination of the second total reflection surface 1521 can be set according to the actual situation, as long as it can totally reflect at least part of the infrared light incident on the second raised portion 152 toward the infrared receiver 14, so that The infrared light can be received by the infrared receiver 14 .
  • a textured structure can be provided on the side of the second total reflection surface 1521 away from the second refracting surface 1522 , and the textured structure can prevent external infrared light from entering the second raised portion 152 to a certain extent. In order to prevent external light from interfering with the work of the infrared touch screen 10 .
  • the texture structure may be formed by etching on the side of the second total reflection surface 1521 away from the second refraction surface 1522 .
  • the texture structure can also be replaced by a second reflective layer made of a reflective material such as a silver reflective film, that is, a silver reflective film can be provided on the side of the second total reflection surface 1521 away from the second refraction surface 1522 .
  • the display device 1 may further include a backplane 60 .
  • the back plate 60 is disposed on the side of the light-incoming surface 111 of the cover plate 11 .
  • Both the first light-transmitting frame 13 and the second light-transmitting frame 15 are provided with connecting grooves on the side away from the cover plate 11 .
  • One end of the back plate 60 is inserted into the connecting groove of the first light-transmitting frame 13 and fixedly connected with the first light-transmitting frame 13 , and the other end of the back plate 60 is inserted into the connecting groove of the second light-transmitting frame 15 to connect with the second light-transmitting frame 15 Fixed connection.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • features defined as “first” and “second” may explicitly or implicitly include one or more features.

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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)
  • Position Input By Displaying (AREA)

Abstract

一种红外触控屏和显示装置，包括盖板，具有通过第一侧面连接的进光面和出光面；设置有第一安装槽的第一透光边框与盖板连接；红外光源安装在第一安装槽内，且位于盖板的进光面的一侧；第一透光边框背向红外光源的一侧设有用于将红外光源射入第一凸起部的至少部分红外光射出的第一凸起部。此结构减小了第一透光边框的尺寸。

Description

红外触控屏和显示装置
本申请要求于2021年10月08日提交中国专利局、申请号为202122420216.1、发明名称为“一种红外触控屏和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于触控技术领域，尤其涉及一种红外触控屏和显示装置。
 背景技术
红外触控屏是通过在屏幕表面设置红外光源和红外接收器形成的触控屏，当任意一种触摸物体触摸屏幕表面而遮蔽红外光源射向红外接收器的红外光时，红外触控屏即可检测到触摸物体的触摸屏幕操作。
与电容触控屏相比，红外触控屏具有制造成本低、便于安装、抗暴性高和可靠性高等优点。故而，红外触控屏被广泛地应用于各个领域中。然而，现有的红外触控屏的边框相对于屏幕表面凸起过高，影响了红外触控屏整体的视觉观感。
 技术问题
本申请实施例提供一种红外触控屏和显示装置，以解决红外触控屏的边框相对于屏幕表面凸起过高的问题。
 技术解决方案
第一方面，本申请实施例提供一种红外触控屏，包括：
盖板，具有相对设置的进光面和出光面，所述进光面和所述出光面通过第一侧面连接；
红外光源，用于发射红外光；
第一透光边框，设于所述盖板的所述第一侧面的一侧并与所述盖板连接，所述第一透光边框设置有第一安装槽，所述红外光源安装在所述第一安装槽内，并且所述红外光源位于所述盖板的所述进光面的一侧，所述第一透光边框背向所述红外光源的一侧设有第一凸起部，所述红外光源的至少部分红外光能射入所述第一凸起部，所述第一凸起部用于将所述至少部分红外光沿平行于所述出光面的方向射出。
第二方面，本申请实施例还提供了一种红外触控屏，包括：
盖板，具有相对设置的进光面和出光面，所述进光面和所述出光面通过第二侧面连接；
红外接收器，用于接收红外光；
第二透光边框，设于所述盖板的所述第二侧面的一侧并与所述盖板连接，所述第二透光边框设置有第二安装槽，所述红外接收器安装在所述第二安装槽内，并且所述红外接收器位于所述盖板的所述进光面的一侧，所述第二透光边框背向所述红外接收器的一侧设有第二凸起部，所述第二凸起部用于改变沿平行于所述出光面方向传播的红外光的传播方向，以将其射向所述红外接收器。
第三方面，本申请实施例还提供了一种显示装置，包括如上所述的红外触控屏。
 有益效果
本申请实施例提供的红外触控屏和显示装置，采用第一透光边框，赋予了第一透光边框两个功能，即第一透光边框既起到了支撑盖板的作用，也能起到对光线进行传导的作用，通过直接在第一透光边框背向红外光源的一侧设置能改变光线方向的第一凸起部，因此可以省略滤光条的设置，减小了滤光条的安装，第一透光边框不用再设置用于安装滤光条的安装结构，进而减小了第一透光边框的尺寸，并且将红外光源设置于第一透光边框内并位于盖板的进光面一侧，由于第一透光边框本身具有透光特性，因此红外光源发射的红外光能直接从第一安装槽出射到第一凸起部，无需特意在第一安装槽处设置出光口，红外光由第一凸起部改变方向后，光线可以沿平行于出光面的方向在盖板的出光面一侧传播，该部分红外光可以射向红外接收器。故而，相较于将红外光源设置于盖板的出光面一侧，本申请实施例的红外触控屏将红外光源设置于盖板的进光面一侧，使得第一透光边框相较于盖板的出光面突出的部分无需预留过多的厚度以安装红外光源。进而，本申请实施例中红外触控屏的边框相对于盖板的出光面突出的部分的厚度可以更低。
 附图说明
图1为本申请实施例提供的显示装置的结构示意图。
图2为图1所示显示装置的红外触控屏沿P-P方向的剖面图。
图3为图2所示红外触控屏中红外光源一侧的结构示意图。
图4为图2所示红外触控屏中红外接收器一侧的结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例提供一种红外触控屏和显示装置，以解决红外触控屏的边框相对于屏幕表面凸起过高的问题。
请参考图1，图1为本申请实施例提供的显示装置的结构示意图。本申请实施例提供一种红外触控屏10，红外触控屏10可以运用于显示装置1中。显示装置1可以包括液晶显示面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件，本申请实施例对显示装置1的具体结构不做限定。当然，本申请实施例提供的红外触控屏10也可以单独使用，而不运用至显示装置1中，本申请实施例对此不做限定。
请参考图2，图2为图1所示显示装置的红外触控屏沿P-P方向的剖面图。图中粗箭头的方向为光线传播的方向。在本申请实施例中，红外触控屏10可以包括盖板11、红外光源12、第一透光边框13、红外接收器14和第二透光边框15。
示例性的，盖板11具有相对设置的进光面111和出光面112，盖板11可以是亚克力盖板、玻璃盖板或者其他具有透光性能的盖板。红外光源12和红外接收器14则相对设置。红外光源12通过第一透光边框13固定在显示装置1上，用于发射红外光。红外接收器14通过第二透光边框15固定在显示装置1，红外接收器14用于接收红外光源12发射的红外光。此时，红外光源12发射的红外光在盖板11设有出光面112一侧的外部射向红外接收器14。当用户的手指或者其他触摸物体触摸到盖板11的出光面112时，红外光源12射向红外接收器14的红外光线被遮挡，则可以检测到用户的手指或者其他触摸物体触摸盖板11时的触摸位置。在本申请实施例中，还可以设置多组相互配合的红外光源12和红外接收器14。设每一组红外光源12和红外接收器14之间形成一束红外光时，可以通过多束红外光纵横交错地排布形成纵横交织在出光面112表面的红外光网。故而，当用户的手指或者其他触摸物体触摸出光面112时会遮挡该红外光网中的横向和纵向上的红外光，进而可以快速定位用户或者其他触摸物体在盖板11的出光面112上的具体触摸位置。
可以理解的是，盖板11设置于显示装置1的显示组件表面，以对显示装置1的显示组件进行保护。具体的，将盖板11的进光面111贴附至显示组件上，使得显示组件上显示的图案内容等依次穿过盖板11的进光面111和出光面112后可以被盖板11的出光面112以外的区域观测到。例如，如图3所示，图3为图2所示红外触控屏中红外光源一侧的结构示意图。可以将显示组件的液晶模组20通过VHB缓冲密封胶30粘接固定在盖板11的进光面111。通常，将盖板11进光面111一侧的空间定义为屏内空间，而将盖板11的出光面112一侧空间定义为屏外空间。
相关技术中，在盖板的边缘设置边框，将红外光源和红外接收器设置在边框内，并且边框需要开设供关系传导的开口，为了红外光源的光线能在盖板的出光面那一侧进行传导，红外光源和红外接收器均整体全部位于盖板的出光面一侧，即位于屏外空间，此时则要求边框至少一部分位于盖板的出光面一侧，即至少一部分位于屏外空间，该部分需要足够的厚度方可足以安装红外光源和红外接收器，故而，相关技术中，红外触控屏的边框相较于盖板突出的部分的厚度受红外光源体积的限制难以进一步缩小。并且为了改变光线的方向，还会额外设置滤光条，此时边框则需要设置安装滤光条的结构，进一步加厚了边框的尺寸，会导致用户对红外触控屏整体的观感降低并占用过多空间。
基于此，请继续参阅图3，为了使得边框相较于盖板11突出的部分的厚度可以进一步缩小，本申请实施例中，包括第一透光边框13和盖板11，盖板11具有相对设置的进光面111和出光面112，进光面111和出光面112通过第一侧面113连接。其中，第一透光边框13可以设于盖板11的第一侧面113的一侧并与盖板11连接，第一透光边框13设置有第一安装槽131，红外光源12安装在第一安装槽131内，并且红外光源12位于盖板11的进光面111的一侧（即将红外光源12设置于盖板11的屏内空间中），第一透光边框13背向红外光源12的一侧设有第一凸起部132，第一凸起部132用于将红外光源12射入第一凸起部132的至少部分红外光沿平行于出光面112的方向射出。
可以理解的是，由于红外光源12设置在盖板11具有进光面111的一侧，用于安装固定红外光源12的第一透光边框13相较于盖板11的出光面112凸起部分的厚度可以大幅度地降低。并且采用第一透光边框13，赋予了第一透光边框13两个功能，即第一透光边框13既起到了支撑盖板11的作用，也能起到对光线进行传导的作用，通过直接在第一透光边框13背向红外光源12的一侧设置能改变光线方向的第一凸起部132，因此可以省略滤光条的设置，减小了滤光条的安装，第一透光边框13不用再设置用于安装滤光条的安装结构，进而减小了第一透光边框13的尺寸，并且将红外光源12设置于第一透光边框13内并位于盖板11的进光面111一侧，由于第一透光边框13本身具有透光特性，因此红外光源12发射的红外光能直接从第一安装槽131出射到第一凸起部132，无需特意在第一安装槽131处设置出光口，结构更加简单，红外光由第一凸起部132改变方向后光线可以沿平行于出光面112的方向在盖板11的出光面112一侧传播，该部分红外光可以射向红外接收器14。故而，通过设置第一透光边框13并结合红外光源12的位置设置使得本申请实施例中红外触控屏10的边框相对于盖板11的出光面112突出的部分的厚度可以更低。
其中，第一透光边框13可以采用PC（Polycarbonate，聚碳酸酯，别名，PC塑料）或PMMA（polymethyl methacrylat，聚甲基丙烯酸甲酯，别名，有机玻璃、亚克力）等具有透光特性的材料制成，第一凸起部132直接在第一透光边框13上形成，即第一透光边框13与第一凸起部132一体成型。
可以理解的，如图3所示，为了提高盖板11的屏占比，第一凸起部132整体位于盖板11具有第一侧面113的一侧，即第一凸起部132不会遮挡到盖板11的出光面112，第一凸起部132相对于盖板11的出光面112所在的平面向上凸出，以使得经由第一凸起部132改变方向的光线能沿平行于出光面112的方向在盖板11的出光面112一侧传播。
并且可以理解的，第一透光边框13也设置成不会遮挡到盖板11的出光面112。如图3所示，在本申请实施例中，第一透光边框13具有第一安装部133，第一安装部133设置有用于安装红外光源12的第一安装槽131。可以理解的，红外光源12安装在第一安装槽131内时，光线能直接从第一安装槽131内射向第一凸起部132。第一透光边框13具有第二安装部134。诸如，第二安装部134设于第一安装部133朝向进光面111的一侧。第二安装部134与盖板11的进光面111通过第一双面胶40粘接。如图3所示，第二安装部134朝向进光面111的一侧可以设置有第一胶黏槽1341，第一双面胶40背向进光面111的一侧粘接在形成第一胶黏槽1341的底壁上，第一双面胶40朝向进光面111的一侧粘接在进光面111上。当第一双面胶40的厚度等于第一胶黏槽1341的深度时，盖板11粘接后可以恰好抵压在第二安装部134朝向进光面111的表面上，以避免第一双面胶40导致盖板11相对于第二安装部134出现局部翘起。此种结构的第一透光边框13，可以无需在盖板11的出光面112设置与出光面112固定的连接结构，第一透光边框13不会遮挡到盖板11的出光面112，既提高了屏占比，也可以减小第一凸起部132相对于出光面112所在平面凸起的高度。
其中，在本申请实施例中，如图3所示，第一安装部133可以设置有第一减重孔1331，以使红外触控屏10的整体重量降低。
示例性的，如图2和图3所示，为了使得第一凸起部132能起到改变光线传导方向的作用，第一凸起部132可以具有第一全反射面1321和第一折射面1322。第一全反射面1321位于第一凸起部132远离第一侧面113的一侧，并相对于出光面112倾斜设置，以能够将红外光源12射入第一凸起部132的至少部分红外光朝盖板11方向全反射。第一折射面1322位于第一全反射面1321和第一侧面113之间，并相对于出光面112倾斜设置，以能够将第一全反射面1321全反射的至少部分红外光折射至沿平行于出光面112的方向射出第一凸起部132。
其中，可以理解的，第一全反射面1321倾斜的角度可以根据实际情况进行设置，其只要能够将红外光源12射入第一凸起部132的至少部分红外光朝盖板11方向全反射，并经由第一折射面1322将第一全反射面1321全反射的至少部分红外光折射至沿平行于出光面112的方向射出第一凸起部132即可。
在一些实施例中，可以在第一全反射面1321背离第一折射面1322的一侧设置纹理结构，通过该纹理结构可以在一定程度上避免外部的红外光射入第一凸起部132内，以避免外部光线干扰红外触控屏10的工作。该纹理结构可以是在第一全反射面1321背离第一折射面1322的一侧表面蚀刻形成。其中，该纹理结构也可以替换成银反薄膜等反射材料制成的第一反光层，即可以在第一全反射面1321背离第一折射面1322的一侧设置银反薄膜。
请参阅图4并结合图2，图4为图2所示红外触控屏中红外接收器一侧的结构示意图。为了使得第二透光边框15相较于盖板11突出的部分的厚度可以进一步缩小，本申请实施例中，盖板11具有相对设置的进光面111和出光面112，进光面111和出光面112还通过第二侧面114连接，其中，第二侧面114与第一侧面113相对设置。其中，第二透光边框15可以设于盖板11的第二侧面114的一侧并与盖板11连接，第二透光边框15设置有第二安装槽151，红外接收器14安装在第二安装槽151内，并且红外接收器14位于盖板11的进光面111的一侧（即将红外接收器14设置于盖板11的屏内空间中），第二透光边框15背向红外接收器14的一侧设有第二凸起部152，其中，第二凸起部152与第一凸起部132相对设置，第二凸起部152能够改变第一凸起部132射出的、且平行于出光面112的至少部分红外光的传播方向，以将其射向红外接收器14。
由此可见，在本申请实施例中，第二透光边框15和其上的第二凸起部152使得屏内空间设置的红外接收器14能够接受至少部分在屏外空间沿平行于出光面112的方向传播的红外光，以实现红外触控屏10的触摸功能。
可以理解的是，由于红外接收器14设置在盖板11具有进光面111的一侧，用于安装固定红外接收器14的第二透光边框15相较于盖板11的出光面112凸起部分的厚度可以大幅度地降低。并且采用第二透光边框15，赋予了第二透光边框15两个功能，即第二透光边框15既起到了支撑盖板11的作用，也能起到对光线进行传导的作用，通过直接在第二透光边框15背向红外接收器14的一侧设置能改变光线方向的第二凸起部152，因此可以省略滤光条的设置，减小了滤光条的安装，第二透光边框15不用再设置用于安装滤光条的安装结构，进而减小了第二透光边框15的尺寸，并且将红外接收器14设置于第二透光边框15内并位于盖板11的进光面111一侧，由于第二透光边框15本身具有透光特性，因此从第一凸起部132射出到第二凸起部152的红外光能直接从第二凸起部152传导至第二安装槽151内的红外接收器14，无需特意在第二安装槽151处设置出光口，结构更加简单。故而，通过设置第二透光边框15并结合红外接收器14的位置设置使得本申请实施例中红外触控屏10的边框相对于盖板11的出光面112突出的部分的厚度可以更低。
其中，第二透光边框15可以采用PC（Polycarbonate，聚碳酸酯，别名，PC塑料）或PMMA（polymethyl methacrylat，聚甲基丙烯酸甲酯，别名，有机玻璃、亚克力）等具有透光特性的材料制成，第二凸起部152直接在第二透光边框15上形成，即第二透光边框15与第二凸起部152一体成型。
可以理解的，为了提高盖板11的屏占比，如图4所示，第二凸起部152整体位于盖板11具有第二侧面114的一侧，即第二凸起部152不会遮挡到盖板11的出光面112，第二凸起部152相对于盖板11的出光面112所在的平面向上凸出，第二凸起部152与第一凸起部132相对设置，以使得经由第一凸起部132改变方向的光线能入射到第二凸起部152，并经由第二凸起部152改变方向后入射到红外接收器14。
并且可以理解的，第二透光边框15也设置成不会遮挡到盖板11的出光面112。如图4所示，在本申请实施例中，第二透光边框15具有第三安装部153，第三安装部153设置有用于安装红外接收器14的第二安装槽151。可以理解的，红外接收器14安装在第二安装槽151内时，光线能直接从第二凸起部152入射到第二安装槽151内。第二透光边框15具有第四安装部154。诸如，第四安装部154设于第三安装部153朝向进光面111的一侧。第四安装部154与盖板11的进光面111通过第二双面胶50粘接。如图4所示，第四安装部154朝向进光面111的一侧可以设置有第二胶黏槽1541，第二双面胶50背向进光面111的一侧粘接在形成第二胶黏槽1541的底壁上，第二双面胶50朝向进光面111的一侧粘接在进光面111上。当第二双面胶50的厚度等于第二胶黏槽1541的深度时，盖板11粘接后可以恰好抵压在第四安装部154朝向进光面111的表面上，以避免第二双面胶50导致盖板11相对于第四安装部154出现局部翘起。此种结构的第二透光边框15，可以无需在盖板11的出光面112设置与出光面112固定的连接结构，第二透光边框15不会遮挡到盖板11的出光面112，既提高了屏占比，也可以减小第二凸起部152相对于出光面112所在平面凸起的高度。
其中，在本申请实施例中，如图4所示，第三安装部153可以设置有第二减重孔1531，以使红外触控屏10的整体重量降低。
示例性的，如图2和图4所示，为了使得第二凸起部152能起到改变光线传导方向的作用，第二凸起部152可以具有第二全反射面1521和第二折射面1522。第二折射面1522位于第二凸起部152靠近第二侧面114的一侧，并相对于出光面112倾斜设置，以将第一凸起部132射出的至少部分红外光折射至第二凸起部152内；第二全反射面1521位于第二凸起部152远离盖板11的一侧，并相对于出光面112倾斜设置，以能够将第二折射面1522折射的至少部分红外光全反射至红外接收器14。
其中，可以理解的，第二全反射面1521倾斜的角度可以根据实际情况进行设置，其只要能够将射入第二凸起部152的至少部分红外光朝红外接收器14方向全反射，以使红外光能被红外接收器14接收即可。
在一些实施例中，可以在第二全反射面1521背离第二折射面1522的一侧设置纹理结构，通过该纹理结构可以在一定程度上避免外部的红外光射入第二凸起部152内，以避免外部光线干扰红外触控屏10的工作。该纹理结构可以是在第二全反射面1521背离第二折射面1522的一侧表面蚀刻形成。其中，该纹理结构也可以替换成银反薄膜等反射材料制成的第二反光层，即可以在第二全反射面1521背离第二折射面1522的一侧设置银反薄膜。
在本申请实施例中，如图2所示，显示装置1还可以包括有背板60。背板60设于盖板11的进光面111一侧。第一透光边框13和第二透光边框15远离盖板11的一侧均设有连接槽。背板60的一端插入第一透光边框13的连接槽内与第一透光边框13固定连接，背板60的另一端插入第二透光边框15的连接槽内与第二透光边框15固定连接。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种红外触控屏，其中，包括：
    盖板，具有相对设置的进光面和出光面，所述进光面和所述出光面通过第一侧面连接；
    红外光源，用于发射红外光；
    第一透光边框，设于所述盖板的所述第一侧面的一侧并与所述盖板连接，所述第一透光边框设置有第一安装槽，所述红外光源安装在所述第一安装槽内，并且所述红外光源位于所述盖板的所述进光面的一侧，所述第一透光边框背向所述红外光源的一侧设有第一凸起部，所述红外光源的至少部分红外光能射入所述第一凸起部，所述第一凸起部用于将所述至少部分红外光沿平行于所述出光面的方向射出。
  2. 根据权利要求1所述的红外触控屏，其中，所述第一凸起部具有:
    第一全反射面，位于所述第一凸起部远离所述第一侧面的一侧，能够将所述至少部分红外光朝所述盖板方向全反射；和
    第一折射面，位于所述第一全反射面和所述第一侧面之间，能够将所述第一全反射面全反射的至少部分红外光折射至沿平行于所述出光面的方向射出所述第一凸起部。
  3. 根据权利要求2所述的红外触控屏，其中，所述第一全反射面背离所述第一折射面的一侧设置有纹理结构。
  4. 根据权利要求2所述的红外触控屏，其中，所述第一全反射面背离所述第一折射面的一侧设置有第一反光层。
  5. 根据权利要求1所述的红外触控屏，其中，所述第一透光边框与所述第一凸起部一体成型。
  6. 根据权利要求1所述的红外触控屏，其中，所述第一凸起部整体位于所述盖板具有所述第一侧面的一侧。
  7. 根据权利要求1所述的红外触控屏，其中，所述第一透光边框具有第一安装部和第二安装部，所述第一安装部设置有所述第一安装槽，所述第二安装部设于所述第一安装部朝向所述进光面的一侧，所述第二安装部与所述进光面通过第一双面胶粘接。
  8. 根据权利要求7所述的红外触控屏，其中，所述第二安装部朝向所述进光面的一侧设置有第一胶黏槽，所述第一双面胶背向所述进光面的一侧粘接在形成所述第一胶黏槽的底壁上，所述第一双面胶朝向所述进光面的一侧粘接在所述进光面上。
  9. 根据权利要求7所述的红外触控屏，其中，所述第一安装部设置有第一减重孔。
  10. 根据权利要求1-9任一项所述的红外触控屏，其中，所述进光面和所述出光面还通过第二侧面连接，所述第二侧面与所述第一侧面相对设置，所述红外触控屏还包括：
    红外接收器，用于接收所述红外光源发射的红外光；
    第二透光边框，设于所述盖板的所述第二侧面的一侧并与所述盖板连接，所述第二透光边框设置有第二安装槽，所述红外接收器安装在所述第二安装槽内，并且所述红外接收器位于所述盖板的所述进光面的一侧，所述第二透光边框背向所述红外接收器的一侧设有第二凸起部，所述第二凸起部与所述第一凸起部相对设置，所述第二凸起部能够改变所述第一凸起部射出的、且平行于所述出光面的至少部分红外光的传播方向，以将其射向所述红外接收器。
  11. 根据权利要求10所述的红外触控屏，其中，所述第二凸起部具有:
    第二折射面，位于所述第二凸起部靠近所述第二侧面的一侧，以将所述第一凸起部射出的至少部分红外光折射至所述第二凸起部内；和
    第二全反射面，位于所述第二凸起部远离所述盖板的一侧，用于将所述第二折射面折射的至少部分红外光全反射至所述红外接收器。
  12. 根据权利要求11所述的红外触控屏，其中，所述第二全反射面背离所述第二折射面的一侧设置有纹理结构。
  13. 根据权利要求11所述的红外触控屏，其中，所述第二全反射面背离所述第二折射面的一侧设置有第二反光层。
  14. 根据权利要求10所述的红外触控屏，其中，所述第二透光边框与所述第二凸起部一体成型。
  15. 根据权利要求10所述的红外触控屏，其中，所述第二凸起部整体位于所述盖板具有所述第二侧面的一侧。
  16. 根据权利要求10所述的红外触控屏，其中，所述第二透光边框具有第三安装部和第四安装部，所述第三安装部设置有所述第二安装槽，所述第四安装部设于所述第三安装部朝向所述进光面的一侧，所述第四安装部与所述进光面通过第二双面胶粘接。
  17. 根据权利要求16所述的红外触控屏，其中，所述第四安装部朝向所述进光面的一侧设置有第二胶黏槽，所述第二双面胶背向所述进光面的一侧粘接在形成所述第二胶黏槽的底壁上，所述第二双面胶朝向所述进光面的一侧粘接在所述进光面上。
  18. 根据权利要求16所述的红外触控屏，其中，所述第三安装部设置有第二减重孔。
  19. 一种红外触控屏，其中，包括：
    盖板，具有相对设置的进光面和出光面，所述进光面和所述出光面通过第二侧面连接；
    红外接收器，用于接收红外光；
    第二透光边框，设于所述盖板的所述第二侧面的一侧并与所述盖板连接，所述第二透光边框设置有第二安装槽，所述红外接收器安装在所述第二安装槽内，并且所述红外接收器位于所述盖板的所述进光面的一侧，所述第二透光边框背向所述红外接收器的一侧设有第二凸起部，所述第二凸起部用于改变沿平行于所述出光面方向传播的红外光的传播方向，以将其射向所述红外接收器。
  20. 一种显示装置，其中，包括如权利要求1-19任一项所述的红外触控屏。
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