WO2023045595A1 - 一种红外触控屏和显示装置 - Google Patents

一种红外触控屏和显示装置 Download PDF

Info

Publication number
WO2023045595A1
WO2023045595A1 PCT/CN2022/110934 CN2022110934W WO2023045595A1 WO 2023045595 A1 WO2023045595 A1 WO 2023045595A1 CN 2022110934 W CN2022110934 W CN 2022110934W WO 2023045595 A1 WO2023045595 A1 WO 2023045595A1
Authority
WO
WIPO (PCT)
Prior art keywords
infrared
light
touch screen
cover plate
infrared light
Prior art date
Application number
PCT/CN2022/110934
Other languages
English (en)
French (fr)
Other versions
WO2023045595A9 (zh
Inventor
叶雄波
刘懿明
黄华
Original Assignee
深圳市华胜软件技术有限公司
Tcl商用信息科技(惠州)有限责任公司
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 深圳市华胜软件技术有限公司, Tcl商用信息科技(惠州)有限责任公司 filed Critical 深圳市华胜软件技术有限公司
Priority to EP22871653.6A priority Critical patent/EP4407416A1/en
Publication of WO2023045595A1 publication Critical patent/WO2023045595A1/zh
Publication of WO2023045595A9 publication Critical patent/WO2023045595A9/zh

Links

Images

Classifications

    • 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
    • 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
    • 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

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 located on one side of the light-incoming surface of the cover plate, is used to emit infrared light
  • the first infrared filter strip is arranged on one side of the first side of the cover plate, the first infrared filter strip has a first end and a second end oppositely arranged, and the first end is connected to the first end.
  • the first frame is connected, the second end is arranged on the first side, and the side of the second end facing away from the infrared light source is provided with a first raised portion, and the first raised portion can At least part of the infrared light emitted by the infrared light source into the first infrared filter strip is emitted along 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 is arranged on one side of the light-incoming surface of the cover plate;
  • the second infrared filter strip is integrally arranged on one side of the second side of the cover plate, and has a third end and a fourth end oppositely arranged, and the third end is connected with the second frame, so The fourth end is arranged on the second side, and the side of the fourth end facing away from the infrared receiver is provided with a second protruding part, and the second protruding part can receive At least a portion of the propagated infrared light is directed toward the infrared receiver.
  • the embodiment of the present application further provides a display device, including the infrared touch screen as described in the first aspect or the second aspect.
  • the infrared light source is arranged on the side of the light-incoming surface of the cover plate, and the infrared light emitted by the infrared light source can be transformed along the direction parallel to the light-emitting surface after being transformed by the direction of the first infrared filter bar. Propagated on the side of the light-emitting surface of the cover plate, this part of the infrared light can be directed to the infrared receiver.
  • the infrared touch screen in the embodiment of the present application arranges the infrared light source on the light-incoming side of the cover, so that the first frame is smaller than the cover.
  • the protruding part of the light-emitting surface does not need to reserve too much thickness to install the infrared light source.
  • 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 the connection between the infrared light source side and the liquid crystal module in the infrared touch screen shown in FIG. 3 .
  • FIG. 5 is a schematic structural diagram of a first infrared filter strip in the infrared touch screen shown in FIG. 3 .
  • FIG. 6 is a partially enlarged view at X of the structural schematic diagram of the side of the infrared light source in the infrared touch screen shown in FIG. 3 .
  • FIG. 7 is a schematic structural diagram of one side of the infrared receiver in the infrared touch screen shown in FIG. 2 .
  • FIG. 8 is a schematic structural diagram of a second infrared filter strip in the infrared touch screen shown in FIG. 7 .
  • FIG. 9 is a partially enlarged view at Y of the structural schematic diagram of the infrared receiver side of the infrared touch screen shown in FIG. 7 .
  • 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 100 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 100, and the infrared touch screen 100 can be applied in a display device.
  • the display device may include liquid crystal display panels, electronic paper, mobile phones, tablet computers, televisions, monitors, notebook computers, digital photo frames, navigators and other products or components with display functions.
  • the specific structure of the display device is not discussed in this embodiment. Do limited.
  • the infrared touch screen 100 provided in the embodiment of the present application can also be used alone instead of being applied to a display device, which is not limited in the embodiment of the present application.
  • the infrared touch screen 100 may include a cover plate 1 , an infrared light source 2 , a first frame 3 , an infrared receiver 4 and a second frame 5 .
  • the cover plate 1 has a light-incoming surface 11 and a light-emitting surface 12 oppositely arranged, and the cover plate 1 may be an acrylic cover plate, a glass cover plate or other cover plates with light-transmitting properties.
  • the infrared light source 2 and the infrared receiver 4 are relatively arranged.
  • the infrared light source 2 is fixed on the display device through the first frame 3 for emitting infrared light.
  • the infrared receiver 4 is fixed on the display device through the second frame 5 , and the infrared receiver 4 is used to receive the infrared light emitted by the infrared light source 2 .
  • the infrared light emitted by the infrared light source 2 is directed toward the infrared receiver 4 from the outside of the side of the cover plate 1 provided with the light-emitting surface 12 .
  • the infrared light emitted by the infrared light source 2 to the infrared receiver 4 is blocked, and it can be detected that the user's finger or other touching object touches the cover 1 the touch location.
  • multiple sets of infrared light sources 2 and infrared receivers 4 that cooperate with each other may also be provided.
  • Figure 3 is a schematic diagram of the structure of the infrared light source side of the infrared touch screen shown in Figure 2
  • Figure 4 is the connection between the infrared light source side and the liquid crystal module of the infrared touch screen shown in Figure 3 Schematic.
  • the cover plate 1 is disposed on the surface of the display component of the display device to protect the display component of the display device.
  • the light-incoming surface 11 of the cover plate 1 is attached to the display assembly, so that the pattern content displayed on the display assembly, etc., can be read by the light-incoming surface 11 and the light-emitting surface 12 of the cover plate 1 after sequentially passing through the light-incoming surface 11 and the light-emitting surface 12 of the cover plate 1. Observed from the area other than the light-emitting surface 12.
  • the liquid crystal module 200 of the display component can be bonded and fixed on the light-incoming surface 11 of the cover plate 1 through the VHB buffer sealant 300 .
  • the space on the side of the light-incoming surface 11 of the cover 1 is defined as the in-screen space
  • the space on the side of the light-emitting surface 12 of the cover 1 is defined as the off-screen space.
  • Both the infrared light source 2 and the infrared receiver 4 are located on the side of the light emitting surface 12 of the cover plate 1 as a whole, that is, in the space outside the screen.
  • the thickness of the protruding part of the first frame 3 of the infrared touch screen 100 compared with the cover plate 1 is difficult to be further reduced due to the limitation of the volume of the infrared light source 2 .
  • the thickness of the protruding part of the second frame 5 of the infrared touch screen 100 compared to the cover plate 1 is difficult to be further reduced due to the limitation of the volume of the infrared receiver 4 .
  • the protruding parts of the first frame 3 and the second frame 5 relative to the cover plate 1 are too thick, the user's impression of the infrared touch screen as a whole will be reduced and too much space will be occupied.
  • the protruding parts of the first frame 3 and the second frame 5 are too thick relative to the cover plate 1 , the display content of the display component in the space inside the screen is viewed through the cover plate 1 and the appearance is poor.
  • the infrared light source 2 of the infrared touch screen 100 can be arranged on the cover plate 1 with further One side of the light surface 11 , that is, the infrared light source 2 is arranged in the space inside the screen of the cover plate 1 .
  • the infrared touch screen 100 may further include a first infrared filter strip 6 .
  • the first infrared filter strip 6 can filter all beams except the infrared light incident thereto, so that only infrared light can pass through the first infrared filter strip 6 .
  • the infrared touch screen 100 provided by the embodiment of the present application can make at least part of the infrared light emitted by the infrared light source 2 parallel to the light-emitting surface outside the light-emitting surface 12 of the cover plate 1 by setting the first infrared filter strip 6 . 12 directions of propagation.
  • the infrared light source 2 is arranged on the side of the cover plate 1 having the light-incoming surface 11, the thickness of the first frame 3 used to install and fix the infrared light source 2 is compared to the thickness of the raised portion of the light-emitting surface 12 of the cover plate 1 can be greatly reduced.
  • FIG. 5 is a schematic structural diagram of the first infrared filter strip in the infrared touch screen shown in FIG. 3 .
  • the specific structure of the first infrared filter strip 6 in the embodiment of the present application will be further described in detail with reference to the accompanying drawings.
  • the light-incoming surface 11 and the light-emitting surface 12 of the cover plate 1 can be connected by a first side 13 .
  • the first infrared filter strip 6 is integrally disposed on the side of the cover plate 1 having the first side 13 .
  • the first infrared filter strip 6 has a first end 61 and a second end 62 oppositely disposed.
  • the first end 61 is connected to the first frame 3 , and then the first end 61 is directly or indirectly mounted and fixed on the display device through the first frame 3 .
  • the second end 62 is arranged on the first side 13.
  • the second end 62 can be in contact with the first side 13, or there can be a gap between the second end and the first side, so that the cover plate 1 and the first infrared filter
  • the strips 6 are arranged side by side in a plane parallel to the light-emitting surface 12 .
  • a side of the second end 62 facing away from the light-incoming surface 11 is provided with a first protruding portion 63 .
  • the first protruding portion 63 can emit at least part of the infrared light emitted by the infrared light source 2 into the first infrared filter strip 6 along a direction parallel to the light emitting surface 12 .
  • the first protrusion 63 may have a first total reflection surface 631 and a first refraction surface 632 .
  • the first total reflection surface 631 is located on the side of the first raised portion 63 away from the first side surface 13, and is inclined to the light-emitting surface 12, so that at least part of the infrared light emitted by the infrared light source 2 into the first infrared filter strip 6 is directed towards Total reflection in direction 1 of the cover plate.
  • the first refraction surface 632 is located between the first total reflection surface 631 and the first side 13, and is inclined to the light exit surface 12, and can refract at least part of the infrared light totally reflected by the first total reflection surface 631 to a direction parallel to the light exit surface.
  • the direction of 12 emits the first infrared filter strip 6.
  • FIG. 6 is a partially enlarged view at X of the structural schematic diagram of the infrared light source side of the infrared touch screen shown in FIG. 3 .
  • the refractive index of the first infrared filter strip 6 is set to be N 1 .
  • the light-emitting surface 12 of the cover plate 1 is used as a first reference plane, and a plane perpendicular to the first reference plane is used as a second reference plane.
  • the second reference plane may be the first side surface 13 .
  • the first total reflection surface 631 can be arranged obliquely with the first reference plane, that is, the light exit surface 12 of the cover plate 1, and the angle between the first total reflection surface 631 and the light exit surface 12 is set to ⁇ °, and ⁇ ° is larger than the first infrared filter
  • the angle between the first refraction surface 632 and the second reference plane is ⁇ °, that is, the angle between the first refraction surface 632 and the first side surface 13 is ⁇ °.
  • the incident angle of the first initial infrared light directed at the first total reflection surface 631 is ⁇ °
  • the first total reflection surface 631 totally reflects the first initial infrared light to form the first intermediate infrared light, and the first intermediate infrared light
  • the incident angle to the first refraction surface 632 is ⁇ °. Since ⁇ ° is smaller than ⁇ °, that is, the incident angle of the first mid-infrared light to the first refracting surface 632 is smaller than the critical angle of total reflection of the first infrared filter strip 6 . Therefore, the emergent angle of the first mid-infrared light after being refracted at the first refracting surface 632 is ⁇ °.
  • N 1 1.58 then at least part of the light emitted by the infrared light source 2 into the first infrared filter strip 6 is directed toward the first total reflection surface 631 in the direction of the light-emitting surface 12, and can pass through the first infrared filter strip 6 After the transformation, the outgoing light rays parallel to the light exiting surface 12 are formed.
  • the first raised portion 63 includes a first reflection surface and a first refraction surface 632 .
  • the first reflective surface is located on the side of the first protruding portion 63 away from the first side 13, and is provided with a reflective layer made of reflective materials such as silver reflective film, so that the infrared light source 2 is arranged to enter the first infrared filter bar 6 At least part of the infrared light is radiated toward the direction of the cover plate 1 .
  • the first refraction surface 632 is located between the first total reflection surface 631 and the first side 13, and can refract at least part of the infrared light totally reflected by the first total reflection surface 631 to exit the first infrared filter in a direction parallel to the light exit surface 12.
  • Light bar 6 is located between the first total reflection surface 631 and the first side 13, and can refract at least part of the infrared light totally reflected by the first total reflection surface 631 to exit the first infrared filter in a direction parallel to the light exit surface 12.
  • the embodiment of the present application does not limit the specific structure of the first raised portion 63, as long as at least part of the infrared light emitted by the infrared light source 2 into the first infrared filter strip 6 is emitted along a direction parallel to the light-emitting surface 12
  • the schemes are all within the protection scope of the present application.
  • the first frame 3 may have a first mounting portion 31 , and the first mounting portion 31 is provided with a third sliding groove 311 opening toward the first infrared filter bar 6 .
  • the third slide groove 311 is a through groove whose length direction is parallel to the light emitting surface 12 .
  • the infrared light source 2 includes a first circuit board, which is slidably connected to the third sliding groove 311 and can slide in the third sliding groove 311 along a direction parallel to the light-emitting surface 12 .
  • the infrared light source 2 can be directly slid into the third sliding groove 311 at one end opening of the third sliding groove 311 , so that the infrared light source 2 can be quickly installed in the first installation part 31 . It can be seen that the infrared touch screen 100 provided by the embodiment of the present application has the advantage of being easy to assemble.
  • the first mounting portion 31 may be provided with a first weight reducing hole 312 to reduce the overall weight of the infrared touch screen 100 .
  • the first frame 3 may have a second mounting portion 32 .
  • the second mounting portion 32 is disposed on a side of the first mounting portion 31 facing the light-incoming surface 11 .
  • the second installation portion 32 is bonded to the light-incoming surface 11 of the cover plate 1 by the first double-sided adhesive 33 .
  • a first adhesive groove 321 may be provided on the side of the second installation part 32 facing the light-incoming surface 11 , and a side of the first double-sided adhesive 33 facing away from the light-incoming surface 11 may be provided.
  • the first double-sided adhesive tape 33 is glued on the side wall of the first adhesive groove 321 , and the side facing the light-incoming surface 11 is glued on the light-incoming surface 11 .
  • the cover plate 1 When the thickness of the first double-sided adhesive 33 is equal to the depth of the first adhesive groove 321, the cover plate 1 can just be pressed against the surface of the second installation part 32 facing the light-incoming surface 11 after bonding, so as to avoid the first double-sided adhesive
  • the surface glue 33 causes the cover plate 1 to partially warp relative to the second mounting portion 32 .
  • the first frame 3 may have a third mounting portion 34 .
  • the third mounting portion 34 may be disposed on the same side of the first mounting portion 31 as the second mounting portion 32 , and symmetrically disposed on both sides of the opening of the third sliding groove 311 with the second mounting portion 32 .
  • the third mounting portion 34 is provided with a first sliding groove facing the first side 13 of the cover plate 1 .
  • the first end 61 of the first infrared filter bar 6 is slidably installed in the first sliding groove.
  • the first end 61 may be provided with at least two first sliding parts 64 , and the shapes of the at least two first sliding parts 64 are different.
  • the first sliding groove can be composed of two through grooves with the same cross-section as the two first sliding parts 64 respectively, and the length direction is parallel to the light-emitting surface 12, so that the first end 61 can move along the first sliding groove. Slide in a direction parallel to the light-emitting surface 12 . Therefore, during the installation process, the first infrared filter strip 6 can be directly slid into the first sliding groove at one end opening of the first sliding groove, so that the first infrared filter strip 6 can be quickly installed on the third installation part within 34. It can be seen that the infrared touch screen 100 provided by the embodiment of the present application has the advantage of being easy to assemble.
  • first sliding parts 64 there are two first sliding parts 64 , one of which is circular, and the other first sliding part 64 is square.
  • the first infrared filter bar 6 can be multi-angle limited by two first sliding parts 64 with different shapes and the third installation part 34 forming a sliding connection, so that the first infrared filter strip 6
  • An infrared filter bar 6 only has a degree of freedom of sliding in the third mounting portion 34 .
  • the installation of the first infrared filter strip 6 is more firm and less prone to displacement, which finally makes the change angle of the first infrared filter strip 6 to the infrared light more accurate. In order to improve the accuracy of the infrared touch screen 100 provided by the embodiment of the present application.
  • the first frame 3 may include a first shielding portion 35 .
  • the first shielding portion 35 is connected to an end of the third mounting portion 34 away from the second mounting portion 32 .
  • the first shielding part 35 is arranged opposite to the infrared light source 2 on both sides of the first infrared filter strip 6, and then covered on the side of the first infrared filter strip 6 facing away from the light-incoming surface 11 of the cover plate 1, that is, the second A shielding portion 35 is located in the off-screen space.
  • the first shielding portion 35 it is possible to prevent external infrared light from entering the first infrared filter strip 6 to a certain extent, so as to interfere with the operation of the infrared touch screen 100 .
  • the first shielding portion 35 is also integrally disposed on the side of the cover 1 having the first side 13 . Therefore, the first shielding portion 35 may not shield the cover 1 , so that the width of the first frame 3 in the plane where the light-emitting surface 12 of the cover 1 is located can be smaller, that is, the narrow frame effect of the infrared touch screen 100 can be realized.
  • the first infrared filter strip 6 is only partially located on the side of the cover plate 1 having the first side 13 . Specifically, the first end 61 of the first infrared filter strip 6 is connected to the first frame 3 . In order to prevent the second end 62 of the first infrared filter strip 6 from shaking or displacing, the second end 62 needs to be covered on the light-emitting surface 12 of the cover plate 1. The board 1 is pressed against the second mounting part 32 . The first refraction surface 632 is located at the area where the second end 62 is pressed by the first shielding portion 35 . However, the first infrared filter strip 6 has a certain deformability.
  • the thickness of the second end 62 in the direction perpendicular to the light-emitting surface 12 needs to be increased to more than 8 mm, so that the second end 62 has sufficient compression and deformation resistance, and avoids the deformation of the second end. 62 Deformation occurs during clamping and positioning. Correspondingly, a gap of more than 8 mm needs to be formed between the first shielding portion 35 and the light-emitting surface 12 to accommodate the second end 62 .
  • the side of the second end 62 facing the first side 13 has a third side parallel to the first side 13 , and the third side abuts against the cover plate 1 . Therefore, a force can be applied from the first infrared filter strip 6 on both sides parallel to the direction of the light-emitting surface 12 through the third mounting portion 34 and the first side surface 13, so as to achieve the first end of the first infrared filter strip 6 61 and the positioning of the second end 62.
  • the protruding distance of the first protruding portion 63 relative to the light-emitting surface 12 in a direction perpendicular to the light-emitting surface 12 can be reduced to less than 4 mm.
  • the first protruding portion 63 protrudes 3 mm relative to the light-emitting surface 12 in a direction perpendicular to the light-emitting surface 12 , and the corresponding gap between the first shielding portion 35 and the light-emitting surface 12 also only needs to be 3 mm. It can be seen that the embodiment of the present application can further reduce the thickness of the first frame 3 protruding relative to the light-emitting surface 12 .
  • FIG. 7 is a schematic structural diagram of one side of the infrared receiver in the infrared touch screen shown in FIG. 2 .
  • the infrared receiver 4 of the infrared touch screen 100 can be arranged on one side of the cover plate 1 having the light-incoming surface 11. side, that is, the infrared receiver 4 is arranged in the space inside the screen of the cover plate 1 .
  • the infrared touch screen 100 may further include a second infrared filter strip 7 .
  • the second infrared filter strip 7 can filter all beams except the infrared light incident thereto, so that only infrared light can pass through the second infrared filter strip 7 . Therefore, at least part of the infrared light propagating parallel to the light-emitting surface 12 hits the second infrared filter strip 7 , and can be redirected by the infrared receiver 4 to be emitted to the infrared receiver 4 .
  • the second infrared filter bar 7 enables the infrared receiver 4 arranged in the space inside the screen to accept at least part of the infrared light propagating in the space outside the screen along the direction parallel to the light-emitting surface 12, so as to The touch function of the infrared touch screen 100 is realized. It can be understood that since the infrared receiver 4 is arranged on the side of the cover plate 1 with the light-incoming surface 11, the second frame 5 used to install and fix the infrared receiver 4 is raised compared to the light-emitting surface 12 of the cover plate 1 The thickness can be greatly reduced.
  • FIG. 8 is a schematic structural diagram of the second infrared filter strip in the infrared touch screen shown in FIG. 7 .
  • the specific structure of the second infrared filter strip 7 in the embodiment of the present application will be further described in detail with reference to the accompanying drawings.
  • the light-incoming surface 11 and the light-emitting surface 12 of the cover plate 1 can be connected by a second side 14 , and the second side 14 is opposite to the first side 13 .
  • the second infrared filter strip 7 is integrally disposed on the side of the cover plate 1 having the second side 14 .
  • the second infrared filter strip 7 has a third end 71 and a fourth end 72 oppositely disposed.
  • the third end 71 is connected to the second frame 5 , and the third end 71 is directly or indirectly fixed on the display device through the second frame 5 .
  • the fourth end 72 is arranged on the second side 14, for example, the fourth end 72 can abut against the second side 14, and there can also be a gap between the fourth end 72 and the second side 14, so that the cover plate 1 and the second side
  • the infrared filter strips 7 are arranged side by side in a plane parallel to the light-emitting surface 12 .
  • a side of the fourth end 72 facing away from the light-incoming surface 11 is provided with a second protruding portion 73 .
  • the second protruding part 73 can receive at least part of the infrared light directly emitted by the infrared light source 2 or emitted by the first protruding part 63 , and transforms the direction of the part of the infrared light to emit to the infrared receiver 4 .
  • the second protrusion 73 may have a second total reflection surface 731 and a second refraction surface 732 .
  • the second refraction surface 732 is located on a side of the second protruding portion 73 close to the second side surface 14 , and is inclined to the light-emitting surface 12 .
  • the second refraction surface 732 can refract at least part of the infrared light propagating parallel to the light-emitting surface 12 and then enter the second infrared filter strip 7 .
  • the second total reflection surface 731 is located on the side of the second raised portion 73 away from the second side surface 14, and is inclined to the light-emitting surface 12, so that at least Part of the infrared light is totally reflected, so that at least part of the infrared light totally reflected by the second total reflection surface 731 can be directed to the infrared receiver 4 .
  • FIG. 9 is a partially enlarged view at Y of the structural schematic diagram of the infrared receiver side of the infrared touch screen shown in FIG. 7 .
  • the refractive index of the second infrared filter strip 7 is set to be N 2 .
  • the light-emitting surface 12 of the cover plate 1 is used as a first reference plane, and the plane perpendicular to the first reference plane is used as a second reference plane.
  • the second reference plane may be the second side surface 14 .
  • the second total reflection surface 731 can be arranged obliquely with the first reference plane, that is, the light exit surface 12 of the cover plate 1, and the angle between the second total reflection surface 731 and the light exit surface 12 is set to ⁇ °, and the second infrared filter with ⁇ ° greater than
  • the critical angle of total reflection of the light strip 7 is ⁇ >arcsin(1/N 2 ).
  • the included angle between the second refraction surface 732 and the second reference plane is ⁇ °.
  • the angle of incidence formed is less than the critical angle of total reflection of the second infrared filter strip 7, so that the first initial infrared light is refracted at the second
  • the refraction at the surface 732 forms the second mid-infrared light entering the first infrared filter strip 6 , and the exit angle between the second mid-infrared light and the second refraction surface 732 is ⁇ °.
  • the second mid-infrared light strikes the second total reflection surface 731 , the second mid-infrared light and the second total reflection surface 731 form an incident angle greater than ⁇ °.
  • the second mid-infrared light radiates to the second total reflection surface 731 and is totally reflected by the second total reflection surface 731 to form the third mid-infrared light with an exit angle of ⁇ °.
  • the third intermediate infrared light exits the second infrared filter bar 7 and is received by the infrared receiver 4 .
  • N 1 1.58 after the first initial light beam enters the second refracting surface 732 along the direction parallel to the light-emitting surface 12, it can be totally reflected by the second total reflection surface 731 to form an infrared beam along the direction perpendicular to the light-emitting surface 12.
  • the second protruding portion 73 may also include a second reflection surface and a second refraction surface 732 .
  • the second refraction surface 732 is located on a side of the second protruding portion 73 close to the second side surface 14 .
  • the second refraction surface 732 can refract at least part of the infrared light propagating parallel to the light-emitting surface 12 and then enter the second infrared filter strip 7 .
  • the second reflective surface is located on the side of the second protruding portion 73 away from the second side 14, and is provided with a reflective layer made of reflective materials such as silver reflective film, which can refract through the second refraction surface 732 and enter the second infrared filter. At least part of the infrared light from the light strip 7 is specularly reflected, so that at least part of the infrared light specularly reflected by the second reflective surface can be emitted to the infrared receiver 4 .
  • the embodiment of the present application does not limit the specific structure of the second raised portion 73, as long as at least part of the infrared light emitted by the infrared receiver 4 into the second infrared filter strip 7 can be emitted along a direction parallel to the light emitting surface 12 All technical solutions are within the scope of protection of this application.
  • the second frame 5 may have a fourth installation portion 51 , and the fourth installation portion 51 is provided with a fourth sliding groove 511 opening toward the second infrared filter bar 7 .
  • the fourth sliding groove 511 is a through groove whose length direction is parallel to the light emitting surface 12 .
  • the infrared receiver 4 includes a second circuit board, which is slidably connected to the fourth sliding groove 511 and can slide in the fourth sliding groove 511 along a direction parallel to the light-emitting surface 12 .
  • the infrared receiver 4 can be directly slid into the fourth sliding groove 511 at one end opening of the fourth sliding groove 511 , so that the infrared receiver 4 can be quickly installed into the fourth installation portion 51 . It can be seen that the infrared touch screen 100 provided by the embodiment of the present application has the advantage of being easy to assemble.
  • the fourth mounting portion 51 may be provided with a second weight-reducing hole 512 to reduce the overall weight of the infrared touch screen 100 .
  • the second frame 5 may have a fifth installation portion 52 .
  • the fifth installation portion 52 is disposed on a side of the fourth installation portion 51 facing the light-incoming surface 11 .
  • the fifth mounting portion 52 is bonded to the light-incoming surface 11 of the cover plate 1 by the second double-sided adhesive tape 53 .
  • the side of the fifth mounting part 52 facing the light-emitting surface 12 can be provided with a second adhesive groove 521, and the second double-sided adhesive 53 is glued on the side facing away from the light-emitting surface 11 to form a second glue groove.
  • the side of the second double-sided adhesive tape 53 facing the light-incoming surface 11 is glued on the light-incoming surface 11 .
  • the cover plate 1 When the thickness of the second double-sided adhesive 53 is equal to the depth of the second adhesive groove 521, the cover plate 1 can just be pressed against the surface of the fifth mounting part 52 facing the light-incoming surface 11 after bonding, so as to avoid the second double-sided adhesive
  • the surface glue 53 causes partial warpage of the cover plate 1 relative to the fifth installation portion 52 .
  • the second frame 5 may have a sixth installation portion 54 .
  • the sixth mounting portion 54 can be disposed on the same side of the fourth mounting portion 51 as the fifth mounting portion 52 , and symmetrically disposed on both sides of the opening of the fourth sliding groove 511 with the fifth mounting portion 52 .
  • the sixth mounting portion 54 is provided with a second sliding groove facing the second side 14 of the cover plate 1 .
  • the third end 71 of the second infrared filter bar 7 is slidably installed in the second sliding groove.
  • the third end 71 may be provided with at least two second sliding parts 74 , and the shapes of the at least two second sliding parts 74 are different.
  • the second sliding groove can be composed of two through grooves with the same cross-section as the two second sliding parts 74 respectively, and the length direction is parallel to the light-emitting surface 12, so that the third end 71 can move along the second sliding groove. Sliding parallel to the light-emitting surface 12. Therefore, during the installation process, the second infrared filter strip 7 can be directly slid into the second sliding groove at one end opening of the second sliding groove, so that the second infrared filter strip 7 can be quickly installed on the sixth installation part within 54. It can be seen that the infrared touch screen 100 provided by the embodiment of the present application has the advantage of being easy to assemble.
  • FIG. 8 there are two second sliding parts 74 , one of which is circular, and the other second sliding part 74 is square. It can be understood that, during use, the second sliding part 74 with different shapes forms a sliding connection with the sixth mounting part 54, so that the second infrared filter strip 7 can be multi-angled, so that the second The second infrared filter bar 7 only has the degree of freedom to slide in the sixth installation part 54 .
  • the second infrared filter strip 7 is installed more firmly and is not easy to be displaced, and finally makes the infrared filter strip more accurate to the change angle of the infrared light, so as to improve the performance of the infrared filter strip.
  • the second frame 5 may include a second shielding portion 55 .
  • the second shielding portion 55 is connected to an end of the sixth mounting portion 54 away from the fifth mounting portion 52 .
  • the second shielding part 55 is arranged opposite to the infrared receiver 4 on both sides of the second infrared filter strip 7, and then covered on the side of the second infrared filter strip 7 facing away from the light-incoming surface 11 of the cover plate 1, that is, The second shielding portion 55 is located in the off-screen space.
  • setting the second shielding portion 55 can prevent external infrared light from entering the second infrared filter strip 7 to a certain extent, so as to interfere with the operation of the infrared touch screen 100 .
  • the second shielding portion 55 is also integrally disposed on the side of the cover 1 having the second side 14 . Therefore, the second shielding portion 55 may not shield the cover plate 1 , so that the width of the second frame 5 in the plane where the light emitting surface 12 of the glass steel plate 1 is located can be smaller, that is, the narrow frame effect of the infrared touch screen 100 can be realized.
  • the second infrared filter strip 7 is only partially located on the side of the cover plate 1 having the second side 14 .
  • the third end 71 of the second infrared filter strip 7 is connected to the second frame 5.
  • the fourth end 72 of the second infrared filter strip 7 needs to be covered on the light-emitting surface 12 of the cover plate 1, and the fourth end 72 and the cover are connected by the second shielding part 55.
  • the board 1 is pressed against the fifth mounting part 52 .
  • the second refraction surface 732 is located at the area where the fourth end 72 is pressed by the second shielding portion 55 .
  • the second infrared filter strip 7 has a certain deformability. If the fourth end 72 is subjected to too much pressure perpendicular to the direction of the light-emitting surface 12, it is easy to deform and cause the second refraction surface 732 to follow the deformation of the fourth end 72. It may not be possible to refract infrared light in the preset direction. Therefore, in the solution before the improvement, the thickness of the fourth end 72 along the direction perpendicular to the light-emitting surface 12 needs to be increased to more than 8 mm, so that the fourth end 72 has sufficient compression and deformation resistance, and avoids damage to the fourth end. 72 deformed during clamping and positioning. Correspondingly, a gap of more than 8 mm needs to be formed between the second shielding portion 55 and the light-emitting surface 12 to accommodate the fourth end 72 .
  • the side of the fourth end 72 facing the second side 14 has a fourth side parallel to the second side 14 , and the fourth side abuts against the cover plate 1 . Therefore, an active force can be applied from the second infrared filter strip 7 on both sides parallel to the direction of the light-emitting surface 12 through the sixth installation part 54 and the fourth side surface, so as to achieve the third end 71 of the second infrared filter strip 7 and the positioning of the fourth end 72.
  • the distance that the second protruding portion 73 protrudes relative to the light-emitting surface 12 in a direction perpendicular to the light-emitting surface 12 can be reduced to less than 4 mm.
  • the second protruding portion 73 protrudes 3 mm relative to the light-emitting surface 12 in a direction perpendicular to the light-emitting surface 12 , and the corresponding gap between the second shielding portion 55 and the light-emitting surface 12 also only needs to be 3 mm.
  • the embodiment of the present application can further reduce the thickness of the second frame 5 protruding relative to the light-emitting surface 12 .
  • the infrared light source 2 may be arranged on the side of the light-incoming surface 11 of the cover plate 1, and the infrared receiver 4 may be arranged on the side of the light-emitting surface 12 of the cover plate 1, so that the infrared touch screen 100
  • the raised thickness of the first frame 3 relative to the light-emitting surface 12 is smaller than the raised thickness of the second frame 5 relative to the light-emitting surface 12 .
  • the infrared receiver 4 is arranged on the side of the light-incoming surface 11 of the cover plate 1, and the infrared light source 2 is arranged on the side of the light-emitting surface 12 of the cover plate 1, so that the first frame 3 of the infrared touch screen 100
  • the raised thickness relative to the light-emitting surface 12 is greater than the raised thickness of the second frame 5 relative to the light-emitting surface 12 .
  • both the infrared light source 2 and the infrared receiver 4 are arranged on the side of the light-incoming surface 11 of the cover plate 1, with the thickness of the first frame 3 and the second frame 5 protruding relative to the light-emitting surface 12. Both decreased.
  • the first raised portion 63 can direct at least part of the infrared light emitted by the infrared light source 2 into the first infrared filter strip 6 to the second raised portion 73 outside the cover plate 1, and At least part of the infrared light emitted by the infrared light source 2 into the first infrared filter strip 6 can be directed toward the second protrusion 73 in the cover plate 1 .
  • the second protruding portion 73 can receive at least part of the infrared light emitted from the first protruding portion 63 to the second protruding portion outside the cover plate 1 and emit to the infrared receiver 4, and can receive 63 at least part of the infrared light directed toward the second protrusion 73 in the cover plate and radiates to the infrared receiver 4 .
  • the infrared receiver 4 is capable of detecting the intensity of received infrared light.
  • the infrared touch screen 100 may further include a processor.
  • the processor is connected with the infrared light source 2 and the infrared receiver 4 respectively.
  • the processor is configured to perform the following actions: the processor controls the infrared light source 2 to emit infrared light; the processor controls the infrared receiver 4 to detect the actual intensity of the infrared light; the processor compares the actual intensity of the infrared light with the preset intensity, and if the infrared light If the actual intensity of the light is less than the preset intensity, the processor will give an alarm.
  • the dirt when dirt is formed on the surface of the cover 1 , the dirt blocks the infrared light propagating on the surface of the cover 1 , but cannot block the infrared light propagating inside the cover 1 .
  • the preset intensity in the processor includes a first preset intensity
  • the first preset intensity is that the infrared receiver 4 can only receive Infrared light intensity of at least part of the infrared light and directed to the infrared receiver 4 . If the actual intensity received by the infrared receiver 4 is less than or equal to the preset intensity and not zero, the processor will give an alarm, prompting that the area of the cover 1 corresponding to the infrared receiver 4 is dirty, so that the user can only clean the slope This part does not need to clean the entire cover plate 1 . Furthermore, the workload of the user's single cleaning work is reduced. If the actual intensity received by the infrared receiver 4 is less than or equal to the preset intensity and is zero, the processor will give an alarm, prompting that the infrared receiver 4 or the infrared light source 2 is damaged and requires timely maintenance.
  • the preset intensity may also include a second preset intensity
  • the second preset intensity is that the infrared receiver 4 can receive all the infrared light that the first protrusion 63 enters the infrared receiver 4 in the cover plate 1 , and the infrared receiver 4 can receive the infrared light intensity detected by the first protrusion 63 when at least part of the infrared light finally enters the infrared receiver 4 outside the cover plate 1 . Therefore, when the cover plate 1 is dirty to a certain extent, an alarm can be given in time to remind the user to clean it, so as not to affect the normal touch function. That is to say, the embodiment of the present application makes it unnecessary for the user to clean the cover plate 1 after each use of the integrated cooker, so as to reduce the cleaning frequency of the user.
  • the processor may be connected to the liquid crystal module 200 of the display device, and form a warning mark on the corresponding position of the cover plate 1 through the liquid crystal module 200 to remind the user.
  • the processor controls the liquid crystal module 200 to form blue light on the dirty part of the cover 1 and to form white light on the uncontaminated part of the cover 1 .
  • the display device may further include a backplane 400 .
  • the back plate 400 is disposed on the side of the light-incoming surface 11 of the cover plate 1 .
  • the sides of the first frame 3 and the second frame 5 away from the cover plate 1 are both provided with installation grooves.
  • One end of the backboard 400 is inserted into the installation groove of the first frame 3 and fixedly connected with the first frame 3
  • the other end of the backboard 400 is inserted into the installation groove of the second frame 5 and fixedly connected with the second frame 5 .
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种红外触控屏和显示装置，红外触控屏包括：盖板，具有通过第一侧面连接的进光面和出光面；红外光源，设于盖板的进光面的一侧；第一边框；第一红外滤光条，与第一边框连接并设于盖板的第一侧面的一侧，第一红外滤光条用于将红外光源发射的至少部分红外光变换至在盖板的出光面一侧沿平行于出光面的方向传播。

Description

一种红外触控屏和显示装置
本申请要求于2021年09月26日提交中国专利局、申请号为202111128206.9、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，设于所述盖板的所述进光面的一侧，用于发射红外光；
第一边框；和
第一红外滤光条，设于所述盖板的所述第一侧面的一侧，所述第一红外滤光条具有相对设置的第一端和第二端，所述第一端与所述第一边框连接，所述第二端设于所述第一侧面，所述第二端背向所述红外光源的一侧设有第一凸起部，所述第一凸起部能够将所述红外光源射入所述第一红外滤光条的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，设于所述盖板的所述进光面的一侧；
第二边框；和
第二红外滤光条，整体设于所述盖板的所述第二侧面的一侧，具有相对设置的第三端和第四端，所述第三端与所述第二边框连接，所述第四端设于所述第二侧面，所述第四端背向红外接收器的一侧设有第二凸起部，所述第二凸起部能够接收沿平行于所述出光面方向传播的至少部分红外光并射向所述红外接收器。
第三方面，本申请实施例还提供一种显示装置，包括如第一方面或第二方面所述的红外触控屏。
有益效果
本申请实施例提供的红外触控屏，将红外光源设置于盖板的进光面一侧，红外光源发射的红外光通过第一红外滤光条的方向变换后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3所示红外触控屏中红外光源一侧与液晶模组连接的结构示意图。
图5为图3所示红外触控屏中第一红外滤光条的结构示意图。
图6为图3所示红外触控屏中红外光源一侧的结构示意图的X处局部放大图。
图7为图2所示红外触控屏中红外接收器一侧的结构示意图。
图8为图7所示红外触控屏中第二红外滤光条的结构示意图。
图9为图7所示红外触控屏中红外接收器一侧的结构示意图的Y处局部放大图。
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100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100，红外触控屏100可以运用于显示装置中。显示装置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100也可以单独使用，而不运用至显示装置中，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。在本申请实施例中，红外触控屏100可以包括盖板1、红外光源2、第一边框3、红外接收器4和第二边框5。
示例性的，盖板1具有相对设置的进光面11和出光面12，盖板1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2和红外接收器4则相对设置。红外光源2通过第一边框3固定在显示装置上，用于发射红外光。红外接收器4通过第二边框5固定在显示装置，红外接收器4用于接收红外光源2发射的红外光。此时，红外光源2发射的红外光于盖板1设有出光面12一侧的外部射向红外接收器4。当用户的手指或者其他触摸物体触摸到盖板1的出光面12时，红外光源2射向红外接收器4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1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2和红外接收器4。设每一组 红外光源2和红外接收器4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12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12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1的出光面12上的具体触摸位置。
请参考图3和图4，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3所示红外触控屏中红外光源一侧与液晶模组连接的结构示意图。可以理解的是，相关技术中，盖板1设置于显示装置的显示组件表面，以对显示装置的显示组件进行保护。具体的，将盖板1的进光面11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1的进光面11和出光面12后可以被盖板1的出光面12以外的区域观测到。例如，如图3所示，可以将显示组件的液晶模组200通过VHB缓冲密封胶300粘接固定在盖板1的进光面11。通常，将盖板1进光面11一侧的空间定义为屏内空间，而将盖板1的出光面12一侧空间定义为屏外空间。红外光源2和红外接收器4均整体全部位于盖板1的出光面12一侧，即位于屏外空间。
由此可见，在相关技术中：一方面，为了安装固定红外光源2，第一边框3至少一部分位于盖板1的出光面12一侧，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2。另一方面，为了安装红外接收器4，第二边框5至少一部分位于盖板1的出光面12一侧，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接收器4。
故而，相关技术中，红外触控屏100的第一边框3相较于盖板1突出的部分的厚度受红外光源2体积的限制难以进一步缩小。红外触控屏100的第二边框5相较于盖板1突出的部分的厚度受红外接收器4体积的限制难以进一步缩小。然而，当第一边框3和第二边框5相对于盖板1突出的部分厚度过大，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。此外，当第一边框3和第二边框5相对于盖板1突出的部分厚度过大，通过盖板1观看屏内空间的显示组件的显示内容时观感较差。
如图2所示，为了使得第一边框3相较于盖板1突出的部分的厚度可以进一步缩小，本申请实施例中，红外触控屏100的红外光源2可以设置在盖板1 具有进光面11的一侧，即将红外光源2设置于盖板1的屏内空间中。示例性的，红外触控屏100还可以包括有第一红外滤光条6。第一红外滤光条6能够对射向其的红外光以外的所有光束进行过滤，以使仅有红外光能够穿过第一红外滤光条6。红外光源2发射的红外光线射向第一红外滤光条6，并在第一红外滤光条6内进行方向变换。最终，本申请实施例提供的红外触控屏100通过设置第一红外滤光条6，可以使得红外光源2发射的至少部分红外光在盖板1的出光面12一侧外部沿平行于出光面12的方向传播。
可以理解的是，由于红外光源2设置在盖板1具有进光面11的一侧，用于安装固定红外光源2的第一边框3相较于盖板1的出光面12凸起部分的厚度可以大幅度地降低。
请参考图5，图5为图3所示红外触控屏中第一红外滤光条的结构示意图。下面，结合附图对本申请实施例中，第一红外滤光条6的具体结构做进一步的详细说明。
如图3所示，盖板1的进光面11和出光面12可以通过第一侧面13连接。第一红外滤光条6整体设置在盖板1具有第一侧面13的一侧。第一红外滤光条6具有相对设置的第一端61和第二端62。第一端61与第一边框3连接，进而第一端61通过第一边框3直接或者间接地安装固定在显示装置上。第二端62设于第一侧面13，例如第二端62可以是与第一侧面13相抵接，也可以是第二端与第一侧面存在间隙，以使盖板1和第一红外滤光条6在平行于出光面12的平面内并排设置。第二端62背向进光面11的一侧设有第一凸起部63。第一凸起部63能够将红外光源2射入第一红外滤光条6的至少部分红外光沿平行所述出光面12的方向射出。
示例性的，如图5所示，第一凸起部63可以具有第一全反射面631和第一折射面632。第一全反射面631位于第一凸起部63远离第一侧面13的一侧，并与出光面12倾斜设置，能够将红外光源2射入第一红外滤光条6的至少部分红外光朝盖板1方向全反射。第一折射面632位于第一全反射面631和第一侧面13之间，并与出光面12倾斜设置，能够将第一全反射面631全反射的至少部分红外光折射至沿平行于出光面12的方向射出第一红外滤光条6。
请参考图6，图6为图3所示红外触控屏中红外光源一侧的结构示意图的 X处局部放大图。在本申请实施例中，设第一红外滤光条6的折射率为N 1。以盖板1的出光面12为第一基准面，以垂直于第一基准面的平面为第二基准面，例如第二基准面可以是第一侧面13。第一全反射面631可以是与第一基准面即盖板1的出光面12倾斜设置，第一全反射面631与出光面12的夹角设为α°，α°大于第一红外滤光条6的全反射临界角，即α＞arcsin(1/N 1)。第一折射面632与第二基准面的夹角为β°，即第一折射面632与第一侧面13的夹角为β°。当射向第一全反射面631的第一初始红外光的入射角为α°时，第一全反射面631对第一初始红外光进行全反射形成第一中间红外光，第一中间红外光射向第一折射面632的入射角为γ°。由于γ°小于α°，即第一中间红外光射向第一折射面632的入射角小于第一红外滤光条6的全反射临界角。故而，第一中间红外光在第一折射面632处折射后的出射角为β°。其中，N 1＝sinβ/sinγ，γ＝90+β-2α。例如，N 1＝1.58，则红外光源2射入第一红外滤光条6的至少部分光线处置于出光面12的方向射向第一全反射面631，即可通过第一红外滤光条6的变换后形成平行于出光面12的出射光线。
当然，在本申请实施例中，还可以是第一凸起部63包括有第一反射面和第一折射面632。第一反射面位于第一凸起部63远离第一侧面13的一侧，并设置有银反薄膜等反射材料制成的反光层，以使红外光源2设置射入第一红外滤光条6的至少部分红外光射向盖板1方向。第一折射面632位于第一全反射面631和第一侧面13之间，能够将第一全反射面631全反射的至少部分红外光折射至沿平行于出光面12的方向射出第一红外滤光条6。
本申请实施例对第一凸起部63的具体结构不做限定，只要能够将红外光源2射入第一红外滤光条6的至少部分红外光沿平行所述出光面12的方向射出的技术方案均在本申请的保护范围内。
如图3所示，在本申请实施例中，第一边框3可以具有第一安装部31，第一安装部31设置有开口朝向第一红外滤光条6的第三滑动槽311。第三滑动槽311为长度方向平行于出光面12的通槽。而红外光源2包括第一电路板，第一电路板与第三滑动槽311滑动连接，并能够在第三滑动槽311内沿平行于出光面12的方向滑动。故而，在安装的过程中，可以将红外光源2于第三滑动槽311的一端开口直接滑入第三滑动槽311内，使得红外光源2快速地安装 到第一安装部31内。由此可见，本申请实施例提供的红外触控屏100具有易于组装的优点。
在本申请实施例中，如图3所示，第一安装部31可以设置有第一减重孔312，以使红外触控屏100的整体重量降低。
如图3所示，第一边框3可以具有第二安装部32。例如，第二安装部32设于第一安装部31朝向进光面11的一侧。第二安装部32与盖板1的进光面11通过第一双面胶33粘接。
如图3所示，在本申请实施例中，第二安装部32朝向进光面11的一侧可以设置有第一胶黏槽321，第一双面胶33背向进光面11的一侧粘接在形成第一胶黏槽321的侧壁上，第一双面胶33朝向进光面11的一侧粘接在进光面11上。当第一双面胶33的厚度等于第一胶黏槽321的深度时，盖板1粘接后可以恰好抵压在第二安装部32朝向进光面11的表面上，以避免第一双面胶33导致盖板1相对于第二安装部32出现局部翘起。
如图3所示，第一边框3可以具有第三安装部34。第三安装部34可以和第二安装部32设于第一安装部31的同一侧，并和第二安装部32对称设置在第三滑动槽311的开口两侧。第三安装部34朝向盖板1的第一侧面13设置有第一滑动槽。第一红外滤光条6的第一端61滑动安装在第一滑动槽内。
如图5所示，第一端61可以设有至少两个第一滑动部64，至少两个第一滑动部64的形状不同。而第一滑动槽则可以是包括两个分别与两个第一滑动部64横截面相同、且长度方向平行于出光面12的通槽，以使第一端61能够在第一滑动槽内沿平行于出光面12的方向滑动。故而，在安装的过程中，可以将第一红外滤光条6于第一滑动槽的一端开口直接滑入第一滑动槽内，使得第一红外滤光条6快速地安装到第三安装部34内。由此可见，本申请实施例提供的红外触控屏100具有易于组装的优点。
如图5所示，第一滑动部64共两个，其中一个第一滑动部64为圆形，另一个第一滑动部64为方形。可以理解的是，在使用的过程中，通过两个形状不同的第一滑动部64与第三安装部34形成滑动连接，可以对第一红外滤光条6进行多角度的限位，使得第一红外滤光条6在第三安装部34内仅剩滑动的自由度。由此可见，本申请实施例提供的红外触控屏100中，第一红外滤光条 6安装更加牢固、不易发生位移，最终使得第一红外滤光条6对红外光线的变化角度更加准确，以提高本申请实施例提供的红外触控屏100的精确度。
如图3所示，第一边框3可以包括有第一遮挡部35。第一遮挡部35与第三安装部34远离第二安装部32的一端连接。第一遮挡部35与红外光源2相对设置在第一红外滤光条6的两侧，进而盖设在第一红外滤光条6背向盖板1的进光面11的一侧，即第一遮挡部35位于屏外空间中。
一方面，通过设置第一遮挡部35可以在一定程度上避免外部的红外光射入第一红外滤光条6内，以干扰红外触控屏100的工作。
另一方面，由于第一红外滤光条6整体位于盖板1具有第一侧面13的一侧，故而第一遮挡部35也整体设于盖板1具有第一侧面13的一侧。故而，第一遮挡部35可以不遮挡盖板1，使得第一边框3在盖板1的出光面12所处平面内的宽度可以更小，即可以实现红外触控屏100的窄边框效果。
可以理解的是，在改进前的技术方案中，第一红外滤光条6仅部分位于盖板1具有第一侧面13的一侧。具体的，第一红外滤光条6的第一端61与第一边框3连接。为了防止第一红外滤光条6的第二端62发生抖动或者位移，需要第二端62盖设在盖板1的出光面12上，在使用第一遮挡部35将第二端62和盖板1压紧在第二安装部32上。第一折射面632则位于第二端62被第一遮挡部35压紧的区域。但是，第一红外滤光条6具有一定的变形能力，若第二端62部被受到垂直于出光面12方向的压力过大容易发生变形而导致第一折射面632跟随第二端62变形后可能无法将红外光折射至预设的方向。故而，改进前的方案中，第二端62部沿垂直于出光面12方向的厚度需要增加到8mm以上，以使第二端62部具有足够的抗压抗变形能力，避免在对第二端62进行夹紧定位时发生变形。相应的，第一遮挡部35与出光面12之间需要形成8mm以上的间隙以容纳第二端62。
在本申请实施例中，为了进一步缩小第一边框3的相对于出光面12凸起的厚度，需要减少第一遮挡部35和出光面12之间的间隙。示例性的，如图3所示，第二端62朝向第一侧面13的一侧具有与第一侧面13平行的第三侧面，第三侧面抵接在盖板1上。故而，可以通过第三安装部34和第一侧面13从第一红外滤光条6在平行于出光面12方向的两侧施加作用力，以实现对第一红 外滤光条6的第一端61和第二端62的定位。此时，可以将第一凸起部63在垂直于出光面12的方向上相对于出光面12凸起的距离缩减至4mm以下。例如，第一凸起部63在垂直于出光面12的方向上相对于出光面12凸起3mm，相应的第一遮挡部35与出光面12的间隙也同样仅需3mm。由此可见，本申请实施例能够进一步缩小第一边框3的相对于出光面12凸起的厚度。
请参考图7，图7为图2所示红外触控屏中红外接收器一侧的结构示意图。为了使得第二边框5相较于盖板1突出的部分的厚度可以进一步缩小，本申请实施例中，红外触控屏100的红外接收器4可以设置在盖板1具有进光面11的一侧，即将红外接收器4设置于盖板1的屏内空间中。示例性的，红外触控屏100还可以包括有第二红外滤光条7。第二红外滤光条7能够对射向其的红外光以外的所有光束进行过滤，以使仅有红外光能够穿过第二红外滤光条7。故而，至少部分平行于出光面12传播的红外光射向第二红外滤光条7后，能受红外接收器4作用而方向变换以射向红外接收器4。
由此可见，在本申请实施例中，第二红外滤光条7使得屏内空间设置的红外接收器4能够接受至少部分在屏外空间沿平行于出光面12的方向传播的红外光，以实现红外触控屏100的触摸功能。可以理解的是，由于红外接收器4设置在盖板1具有进光面11的一侧，用于安装固定红外接收器4的第二边框5相较于盖板1的出光面12凸起部分的厚度可以大幅度地降低。
请参考图8，图8为图7所示红外触控屏中第二红外滤光条的结构示意图。下面，结合附图对本申请实施例中，第二红外滤光条7的具体结构做进一步的详细说明。
如图7和8所示，盖板1的进光面11和出光面12可以通过第二侧面14连接，第二侧面14和第一侧面13相对设置。第二红外滤光条7整体设置在盖板1具有第二侧面14的一侧。第二红外滤光条7具有相对设置的第三端71和第四端72。第三端71与第二边框5连接，进而第三端71通过第二边框5直接或者间接地安装固定在显示装置上。第四端72设于第二侧面14，例如第四端72可以与第二侧面14相抵接，第四端72也可以是与第二侧面14之间存在间隙，以使盖板1和第二红外滤光条7在平行于出光面12的平面内并排设置。第四端72背向进光面11的一侧设有第二凸起部73。第二凸起部73能够 接收红外光源2直接发射的或者第一凸起部63射出的至少部分红外光，并使该部分红外光进行方向变换后射向红外接收器4。
示例性的，如图8所示，第二凸起部73可以具有第二全反射面731和第二折射面732。第二折射面732位于第二凸起部73靠近第二侧面14的一侧，并与出光面12倾斜设置。第二折射面732能够使得平行于出光面12传播的至少部分红外光折射后射入第二红外滤光条7内。第二全反射面731位于第二凸起部73远离第二侧面14的一侧，并与出光面12倾斜设置，能够将经过第二折射面732折射而进入第二红外滤光条7的至少部分红外光进行全反射，以使经过第二全反射面731全反射的至少部分红外光能够射向红外接收器4。
请参考图9，图9为图7所示红外触控屏中红外接收器一侧的结构示意图的Y处局部放大图。在本申请实施例中，设第二红外滤光条7的折射率为N 2。以盖板1的出光面12为第一基准面，以垂直于第一基准面的平面为第二基准面，例如第二基准面可以是第二侧面14。第二全反射面731可以是与第一基准面即盖板1的出光面12倾斜设置，第二全反射面731与出光面12的夹角设为α°，α°大于的第二红外滤光条7的全反射临界角，即α＞arcsin(1/N 2)。第二折射面732与第二基准面的夹角为β°。
当平行于出光面12的传播的第二初始红外光射向第一折射面632时形成的入射角小于第二红外滤光条7的全反射临界角，使得第一初始红外光在第二折射面732处形成折射后形成射入第一红外滤光条6的第二中间红外光，第二中间红外光与第二折射面732之间的出射角为γ°。当第二中间红外光射向第二全反射面731时，第二中间红外光与第二全反射面731形成入射角大于α°。故而，第二中间红外光射向第二全反射面731后被第二全反射面731全反射形成出射角为α°的第三中间红外光。第三中间红外光射出第二红外滤光条7后被红外接收器4接收。其中，N 2＝sinβ/sinγ，γ＝90+β-2α。例如，N 1＝1.58，第一初始光束沿平行于出光面12的方向射入第二折射面732后，则可以由第二全反射面731全反射形成沿垂直于出光面12方向射向红外接收器4的红外光。
当然，在本申请实施例中，还可以是第二凸起部73包括有第二反射面和第二折射面732。第二折射面732位于第二凸起部73靠近第二侧面14的一侧。 第二折射面732能够使得平行于出光面12传播的至少部分红外光折射后射入第二红外滤光条7内。第二反射面位于第二凸起部73远离第二侧面14的一侧，并设置有银反薄膜等反射材料制成的反光层，能够将经过第二折射面732折射而进入第二红外滤光条7的至少部分红外光进行镜面反射，以使经过第二反射面镜面反射的至少部分红外光能够射向红外接收器4。
本申请实施例对第二凸起部73的具体结构不做限定，只要能够将红外接收器4射入第二红外滤光条7的至少部分红外光沿平行所述出光面12的方向射出的技术方案均在本申请的保护范围内。
在本申请实施例中，如图7所示，第二边框5可以具有第四安装部51，第四安装部51设置有开口朝向第二红外滤光条7的第四滑动槽511。第四滑动槽511为长度方向平行于出光面12的通槽。而红外接收器4包括第二电路板，第二电路板与第四滑动槽511滑动连接，并能够在第四滑动槽511内沿平行于出光面12的方向滑动。故而，在安装的过程中，可以将红外接收器4于第四滑动槽511的一端开口直接滑入第四滑动槽511内，使得红外接收器4快速地安装到第四安装部51内。由此可见，本申请实施例提供的红外触控屏100具有易于组装的优点。
在本申请实施例中，如图7所示，第四安装部51可以设置有第二减重孔512，以使红外触控屏100的整体重量降低。
如图7所示，第二边框5可以具有第五安装部52。例如，第五安装部52设于第四安装部51朝向进光面11的一侧。第五安装部52与盖板1的进光面11通过第二双面胶53粘接。
如图7所示，第五安装部52朝向出光面12的一侧可以设置有第二胶黏槽521，第二双面胶53背向进光面11的一侧粘接在形成第二胶黏槽521的侧壁上，第二双面胶53朝向进光面11的一侧粘接在进光面11上。当第二双面胶53的厚度等于第二胶黏槽521的深度时，盖板1粘接后可以恰好抵压在第五安装部52朝向进光面11的表面上，以避免第二双面胶53导致盖板1相对于第五安装部52出现局部翘起。
如图7所示，第二边框5可以具有第六安装部54。第六安装部54可以和第五安装部52设于第四安装部51的同一侧，并和第五安装部52对称设置在 第四滑动槽511的开口两侧。第六安装部54朝向盖板1的第二侧面14设置有第二滑动槽。第二红外滤光条7的第三端71滑动安装在第二滑动槽内。
如图8所示，第三端71可以设有至少两个第二滑动部74，至少两个第二滑动部74的形状不同。而第二滑动槽则可以是包括两个分别与两个第二滑动部74横截面相同、且长度方向平行于出光面12的通槽，以使第三端71能够在第二滑动槽内沿平行于出光面12的方式滑动。故而，在安装的过程中，可以将第二红外滤光条7于第二滑动槽的一端开口直接滑入第二滑动槽内，使得第二红外滤光条7快速地安装到第六安装部54内。由此可见，本申请实施例提供的红外触控屏100具有易于组装的优点。
在本申请实施例中，如图8所示，第二滑动部74共两个，其中一个第二滑动部74为圆形，另一个第二滑动部74为方形。可以理解的是，在使用的过程中，通过两个形状不同的第二滑动部74与第六安装部54形成滑动连接，可以对第二红外滤光条7进行多角度的限位，使得第二红外滤光条7在第六安装部54内仅剩滑动的自由度。由此可见，本申请实施例提供的红外触控屏100中，第二红外滤光条7安装更加牢固、不易发生位移，最终使得红外滤光条对红外光线的变化角度更加准确，以提高本申请实施例提供的红外触控屏100的精确度。
如图7所示，第二边框5可以包括有第二遮挡部55。第二遮挡部55与第六安装部54远离第五安装部52的一端连接。第二遮挡部55与红外接收器4相对设置在第二红外滤光条7的两侧，进而盖设在第二红外滤光条7背向盖板1的进光面11的一侧，即第二遮挡部55位于屏外空间中。
一方面，通过设置第二遮挡部55可以在一定程度上避免外部的红外光射入第二红外滤光条7内，以干扰红外触控屏100的工作。
另一方面，由于第二红外滤光条7整体位于盖板1具有第二侧面14的一侧，故而第二遮挡部55也整体设于盖板1具有第二侧面14的一侧。因此，第二遮挡部55可以不遮挡盖板1，使得第二边框5在玻璃钢板1的出光面12所处平面内的宽度可以更小，即可以实现红外触控屏100的窄边框效果。
可以理解的是，在改进前的技术方案中，第二红外滤光条7仅部分位于盖板1具有第二侧面14的一侧。具体的，第二红外滤光条7的第三端71与第二 边框5连接。为了防止第二红外滤光条7的第四端72发生抖动或者位移，需要第四端72盖设在盖板1的出光面12上，在使用第二遮挡部55将第四端72和盖板1压紧在第五安装部52上。第二折射面732则位于第四端72被第二遮挡部55压紧的区域。但是，第二红外滤光条7具有一定的变形能力，若第四端72部被受到垂直于出光面12方向的压力过大容易发生变形而导致第二折射面732跟随第四端72变形后可能无法将红外光折射至预设的方向。故而，改进前的方案中，第四端72部沿垂直于出光面12方向的厚度需要增加到8mm以上，以使第四端72部具有足够的抗压抗变形能力，避免在对第四端72进行夹紧定位时发生变形。相应的，第二遮挡部55与出光面12之间需要形成8mm以上的间隙以容纳第四端72部。
在本申请实施例中，为了进一步缩小第二边框5的相对于出光面12凸起的厚度，需要减少第二遮挡部55和出光面12之间的间隙。示例性的，如图7所示，第四端72朝向第二侧面14的一侧具有与第二侧面14平行的第四侧面，第四侧面抵接在盖板1上。故而，可以通过第六安装部54和第四侧面从第二红外滤光条7在平行于出光面12方向的两侧施加作用力，以实现对第二红外滤光条7的第三端71和第四端72的定位。此时，可以将第二凸起部73在垂直于出光面12的方向上相对于出光面12凸起的距离缩减至4mm以下。例如，第二凸起部73在垂直于出光面12的方向上相对于出光面12凸起3mm，相应的第二遮挡部55与出光面12的间隙也同样仅需3mm。由此可见，本申请实施例能够进一步缩小第二边框5的相对于出光面12凸起的厚度。
在本申请实施例中，可以是红外光源2设置于盖板1的进光面11一侧，而红外接收器4则设置在盖板1出光面12的一侧，以使红外触控屏100的第一边框3相对于出光面12凸起的厚度小于第二边框5相对于出光面12凸起的厚度。也可以是红外接收器4设置于盖板1的进光面11一侧，而红外光源2器则设置在盖板1出光面12的一侧，以使红外触控屏100的第一边框3相对于出光面12凸起的厚度大于第二边框5相对于出光面12凸起的厚度。还可以是如图2所示，红外光源2和红外接收器4均设置于盖板1的进光面11一侧，以第一边框3和第二边框5相对于出光面12凸起的厚度均减小。
在本申请实施例中，一方面，第一凸起部63能够将红外光源2射入第一红 外滤光条6的至少部分红外光于盖板1外射向第二凸起部73，以及能够将红外光源2射入第一红外滤光条6的至少部分红外光于盖板1内射向所述第二凸起部73。另一方面，第二凸起部73能够接收第一凸起部63于盖板1外射向第二凸起的至少部分红外光线并射向红外接收器4，以及能够接收第一凸起部63于盖板内向第二凸起部73的至少部分红外光线并射向红外接收器4。红外接收器4能够检测所接收的红外光的强度。
此时，红外触控屏100还可以包括有处理器。处理器分别与红外光源2和红外接收器4连接。处理器被配置为能够执行以下动作：处理器控制红外光源2发射红外光；处理器控制红外接收器4检测红外光的实际强度；处理器将红外光的实际强度与预设强度对比，若红外光的实际强度小于预设强度则所述处理器报警。
可以理解的是，当显示装置用于厨房等油污较为严重的地方时。例如，显示装置设置在集成灶上时，盖板1的表面容易快速附着一层油污形成脏污。一方面盖板1上的部分脏污不易察觉，若需要将所有可能存在的脏污全部清除，则需要将盖板1的出光面12完全清理一遍。但是，当盖板1面积较大时，大部分的用户在使用集成灶后考虑到清洁盖板1的工作量较大，并不愿意将盖板1完整地清洁一遍。
而在本申请实施例中，当盖板1的表面形成脏污以后，脏污阻挡在盖板1表面传播的红外光，却不能阻挡在盖板1内部传播的红外光。
此时，假设处理器中的预设强度包括第一预设强度，第一预设强度为红外接收器4仅能接收到第一凸起部63于盖板1内向第二凸起部73的至少部分红外光线并射向红外接收器4的红外光强度。若红外接收器4接收到的实际强度小于或等于预设强度且不为零时，则处理器报警，提示该红外接收器4对应的盖板1区域存在脏污，以使用户可以仅仅清洁斜该部分而无需清洁整个盖板1。进而，降低用户单次清洁工作的工作量。若红外接收器4接收到的实际强度小于或等于预设强度且为零时，则处理器报警，提示该红外接收器4或者红外光源2损坏，需要及时维护。
当然，预设强度还可以包括第二预设强度，第二预设强度是红外接收器4能够能接收到第一凸起部63于盖板1内最终射入红外接收器4的全部红外光、 以及红外接收器4能够能接收到第一凸起部63于盖板1外最终射入红外接收器4的至少部分红外光时检测到的红外光强度。故而，可以在盖板1脏污到一定程度时及时报警提醒用户进行清洁，以免影响正常的触控功能。即本申请实施例使得用户无需每次使用集成灶后均清洁盖板1，以减少用户的清洁次数。
在本申请实施例中，处理器可以与显示装置的液晶模组200连接，并通过液晶模组200在盖板1对应处形成警示标示以提醒用户。例如，处理器控制液晶模组200在盖板1的脏污处形成蓝光，而在盖板1的未脏污处形成白光。
在本申请实施例中，如图2所示，显示装置还可以包括有背板400。背板400设于至盖板1的进光面11一侧。第一边框3和第二边框5远离盖板1的一侧均设有安装槽。背板400的一端插入第一边框3的安装槽内与第一边框3固定连接，背板400的另一端插入第二边框5的安装槽内与第二边框5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，设于所述盖板的所述进光面的一侧，用于发射红外光；
    第一边框；和
    第一红外滤光条，设于所述盖板的所述第一侧面的一侧，所述第一红外滤光条具有相对设置的第一端和第二端，所述第一端与所述第一边框连接，所述第二端设于所述第一侧面，所述第二端背向所述红外光源的一侧设有第一凸起部，所述第一凸起部能够将所述红外光源射入所述第一红外滤光条的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，能够将所述红外光源射入所述第一红外滤光条的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红外滤光条。
  3. 根据权利要求2所述的红外触控屏，其中，所述第一边框具有第一遮挡部，所述第一遮挡部盖设于所述第一红外滤光条背向所述红外光源的一侧，所述第一遮挡部整体设于所述盖板的所述第一侧面的一侧。
  4. 根据权利要求1所述的红外触控屏，其中，所述第一红外滤光条的所述第一端设有至少两个第一滑动部，所述至少两个第一滑动部与所述第一边框滑动连接，所述至少两个第一滑动部的形状不同。
  5. 根据权利要求1所述的红外触控屏，其中，所述第一边框具有第一安装部，所述第一安装部设置有开口朝向第一红外滤光条的第三滑动槽，所述第三滑动槽为长度方向平行于所述出光面的通槽；所述红外光源包括第一电路板，所述第一电路板与所述第三滑动槽滑动连接，并能够沿所述第三滑动槽的长度方向滑动。
  6. 根据权利要求5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。
  7. 根据权利要求5所述的红外触控屏，其中，所述第一边框具有第二安装部，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可以设置有第一胶黏槽，所述第一双面胶背向所述进光面的一侧粘接于形成所述第一胶黏槽的侧壁，所述第一双面胶朝向所述进光面的一侧粘接于所述进光面。
  9. 根据权利要求7所述的红外触控屏，其中，所述第一边框具有第三安装部，所述第三安装部和第二安装部设于第一安装部的同一侧，且所述第三安装部和所述第二安装部对称设置在第三滑动槽的开口两侧，所述第三安装部设有朝向所述第一侧面的第一滑动槽，所述第一端滑动安装在所述第一滑动槽内。
  10. 根据权利要求1所述的红外触控屏，其中，所述第二端朝向第一侧面的一侧具有第三侧面，所述第三侧面与所述第一侧面平行，第三侧面抵接至所述盖板。
  11. 根据权利要求1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，设于所述盖板的所述进光面的一侧；
    第二边框；和
    第二红外滤光条，设于所述盖板的所述第二侧面的一侧，所述第二红外滤光条具有相对设置的第三端和第四端，所述第三端与所述第二边框连接，所述第四端设于所述第二侧面，所述第四端背向所述红外接收器的一侧设有第二凸起部，所述第二凸起部能够至少接收部分所述第一凸起部射出的、且沿平行于所述出光面的红外光，并将所述接收的至少部分红外光射向所述红外接收器。
  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，以使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红外滤光条内；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，能够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。
  13. 根据权利要求12所述的红外触控屏，其中，所述第二边框具有第二遮挡部，所述第二遮挡部盖设于所述第二红外滤光条背向所述红外接收器的一侧，所述第二遮挡部整体设于所述盖板的所述第二侧面的一侧。
  14. 根据权利要求11所述的红外触控屏，其中，所述第二红外滤光条的所述第三端设有至少两个第二滑动部，所述至少两个第二滑动部与所述第二边框滑动连接，所述至少两个第二滑动部的形状不同。
  15. 根据权利要求11所述的红外触控屏，其中，第一凸起部能够将所述红外光源射入第一红外滤光条的至少部分红外光于所述盖板外射向所述第二凸起部，以及能够将所述红外光源射入第一红外滤光条的至少部分红外光于所述盖板内射向所述第二凸起部；
    所述第二凸起部能够接收第一凸起部于所述盖板外射向所述第二凸起的至少部分红外光线并射向所述红外接收器，以及能够接收第一凸起部于所述盖板内向所述第二凸起的至少部分红外光线并射向所述红外接收器；
    所述红外接收器能够检测所接收的红外光的强度。
  16. 根据权利要求15所述的红外触控屏，其中，还包括处理器，所述处理器分别与所述红外光源和所述红外接收器连接，所述处理器被配置为：
    所述处理器控制所述红外光源发射红外光，所述处理器控制所述红外接收器检测红外光的实际强度，所述处理器将所述红外光的实际强度与预设强度对比，若所述红外光的实际强度小于或等于预设强度则所述处理器报警。
  17. 根据权利要求11所述的红外触控屏，其中，所述第二边框具有第四安装部，所述第四安装部设置有开口朝向所述第二红外滤光条的第四滑动槽，第四滑动槽为长度方向平行于出光面的通槽，所述红外接收器包括第二电路板，所述第二电路板与所述第四滑动槽滑动连接，并能够沿所述第四滑动槽的长度方向滑动。
  18. 根据权利要求11所述的红外触控屏，其中，所述第四端朝向所述第二侧面的一侧具有第四侧面，所述第四侧面与所述第二侧面平行，所述第四侧面抵接于盖板。
  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，设于所述盖板的所述进光面的一侧；
    第二边框；和
    第二红外滤光条，设于所述盖板的所述第二侧面的一侧，具有相对设置的第三端和第四端，所述第三端与所述第二边框连接，所述第四端设于所述第二侧面，所述第四端背向红外接收器的一侧设有第二凸起部，所述第二凸起部能够接收沿平行于所述出光面方向传播的至少部分红外光并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。
PCT/CN2022/110934 2021-09-26 2022-08-08 一种红外触控屏和显示装置 WO2023045595A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22871653.6A EP4407416A1 (en) 2021-09-26 2022-08-08 Infrared touch screen and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111128206.9 2021-09-26
CN202111128206.9A CN115877962A (zh) 2021-09-26 2021-09-26 一种红外触控屏和显示装置

Publications (2)

Publication Number Publication Date
WO2023045595A1 true WO2023045595A1 (zh) 2023-03-30
WO2023045595A9 WO2023045595A9 (zh) 2023-09-14

Family

ID=85719704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/110934 WO2023045595A1 (zh) 2021-09-26 2022-08-08 一种红外触控屏和显示装置

Country Status (3)

Country Link
EP (1) EP4407416A1 (zh)
CN (1) CN115877962A (zh)
WO (1) WO2023045595A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100156828A1 (en) * 2008-12-24 2010-06-24 Jong-Seong Choi Touch type display device
CN203720810U (zh) * 2013-12-06 2014-07-16 深圳市天时通科技有限公司 窄边框红外触控屏及触控显示装置
CN110806817A (zh) * 2018-08-06 2020-02-18 深圳市鸿合创新信息技术有限责任公司 一种红外条及具有其的红外触摸装置
CN112114692A (zh) * 2019-06-20 2020-12-22 高创(苏州)电子有限公司 红外触摸框及显示装置
CN215599673U (zh) * 2021-09-09 2022-01-21 广州华欣电子科技有限公司 一种触摸框结构及红外触摸屏
CN215932602U (zh) * 2021-09-26 2022-03-01 深圳市华胜软件技术有限公司 一种红外触控屏和显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100156828A1 (en) * 2008-12-24 2010-06-24 Jong-Seong Choi Touch type display device
CN203720810U (zh) * 2013-12-06 2014-07-16 深圳市天时通科技有限公司 窄边框红外触控屏及触控显示装置
CN110806817A (zh) * 2018-08-06 2020-02-18 深圳市鸿合创新信息技术有限责任公司 一种红外条及具有其的红外触摸装置
CN112114692A (zh) * 2019-06-20 2020-12-22 高创(苏州)电子有限公司 红外触摸框及显示装置
CN215599673U (zh) * 2021-09-09 2022-01-21 广州华欣电子科技有限公司 一种触摸框结构及红外触摸屏
CN215932602U (zh) * 2021-09-26 2022-03-01 深圳市华胜软件技术有限公司 一种红外触控屏和显示装置

Also Published As

Publication number Publication date
EP4407416A1 (en) 2024-07-31
WO2023045595A9 (zh) 2023-09-14
CN115877962A (zh) 2023-03-31

Similar Documents

Publication Publication Date Title
US7489304B2 (en) Touch panel device
JP5792348B1 (ja) 位置入力装置およびタッチパネル
TWI496058B (zh) 光學式觸控裝置
US20240272750A1 (en) Infrared touch screens and display devices
TWI470508B (zh) 觸控面板以及具有此觸控面板之觸控式顯示裝置
US20140055418A1 (en) Touch display panel and optical touch panel thereof
JP5025551B2 (ja) タッチパネル
US20100214269A1 (en) Optical touch module
CA2410069A1 (en) Acoustic touchscreen having waveguided reflector arrays
CN103975257B (zh) 防接触膜、触控面板及显示器装置用盖板
US20150317034A1 (en) Water-immune ftir touch screen
CN215932602U (zh) 一种红外触控屏和显示装置
KR20080047048A (ko) 입력 장치와 그를 이용한 터치 스크린
TWI410685B (zh) 波導模組、光學觸控模組以及提高光學觸控模組之訊雜比之方法
TW201530395A (zh) 光學式觸控裝置
CN203217522U (zh) 红外触摸屏和触显一体机
WO2023045595A1 (zh) 一种红外触控屏和显示装置
WO2019149082A1 (zh) 一种背光模组、显示组件和电子装置
JP4097752B2 (ja) 光式入力装置
CN201489497U (zh) 光学触控模块
CN216388051U (zh) 红外触摸显示设备
WO2018019093A1 (zh) 一种触摸导光结构以及洗衣机
CN103019481B (zh) 触摸屏
JPWO2011052379A1 (ja) 導光ユニット及び入力装置
CN218122628U (zh) 显示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22871653

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022871653

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2022871653

Country of ref document: EP

Effective date: 20240426