CN110780487A - Display and electronic equipment - Google Patents
Display and electronic equipment Download PDFInfo
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- CN110780487A CN110780487A CN201911102154.0A CN201911102154A CN110780487A CN 110780487 A CN110780487 A CN 110780487A CN 201911102154 A CN201911102154 A CN 201911102154A CN 110780487 A CN110780487 A CN 110780487A
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- emitting device
- display
- light
- back plate
- infrared
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- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
Abstract
The application provides a display and electronic equipment, this display includes backlight unit and infrared touch module, backlight unit has accommodation space, infrared touch module is located accommodation space, in this display, infrared touch module sets up in backlight unit's accommodation space, compared with the prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up in backlight unit's top and side promptly, the thickness of whole display is backlight unit's thickness only, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is backlight unit's width only, but not the width that shows plus infrared touch module's partial width, therefore, the thickness of this display is less and the width is less.
Description
Technical Field
The application relates to the field of display equipment, in particular to a display and electronic equipment.
Background
In the conventional technology, the liquid crystal display screen has become the mainstream display in the market due to the characteristics of low electromagnetic radiation, low power consumption, less heat productivity, lightness and thinness and the like, and the LED backlight display also has been widely applied. The current LED backlight display in the market is mainly classified into a side-in type and a direct-down type according to the light-in mode. The side-in type is to install the LED lamp string as the backlight module around the liquid crystal screen, and the direct type is to install the LED lamp string as the backlight module on the front and back of the liquid crystal screen, so that the direct type backlight display has lower cost and wider application range.
In the prior art, an infrared touch lcd includes an infrared touch module and a backlight module, and in most of the current infrared touch lcds, the infrared touch module and the backlight module are structurally independent from each other, as shown in fig. 1, a portion of an infrared touch module 20 is disposed above a backlight module 10, and a portion of the infrared touch module is disposed on a side surface of the backlight module. Such prototypes are thick, look heavy and have a wide width.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The present application provides a display and an electronic device to solve the problems of the prior art that an infrared touch liquid crystal display has a large thickness and a large width.
In order to achieve the above object, according to an aspect of the present application, a display is provided, including a backlight module and an infrared touch module, the backlight module has an accommodating space, and the infrared touch module is located in the accommodating space.
Further, the backlight module includes: a back plate; the optical assembly is erected on the back plate, and the optical assembly and the back plate form the accommodating space; the first light-emitting device is arranged on the surface of the back plate and positioned in the accommodating space, and the first light-emitting device is used for emitting white light.
Further, the optical assembly includes a diffusion element, an optical film, a liquid crystal panel, and a cover plate in this order in a direction away from the back plate.
Further, the diffusion element, the optical film, the liquid crystal panel, and the cover plate are disposed in contact in this order.
Further, infrared touch module includes: the second light-emitting device is arranged on the surface of the back plate at a distance from the first light-emitting device and is positioned in the accommodating space, and the second light-emitting device is used for emitting infrared light; an infrared receiver located on the surface of the back plate in the accommodating space and at one side of the second light emitting device to receive the reflected infrared light; a diffusion structure located within the receiving space and on a surface of the diffusion element.
Further, the diffusion structure is multiple, and the diffusion structure is a diffusion particle.
Further, the backlight module further comprises: a reflective element on a surface of the back plate near the receiving space, and the first light emitting device is on the reflective element.
Further, the backlight module further includes a lens, the lens is located in the accommodating space and located between the optical assembly and the first light emitting device, a projection of the lens on the surface of the back plate is a first region, a projection of the first light emitting device on the back plate is a second region, a projection of the second light emitting device adjacent to the first light emitting device on the back plate is a third region, and the second region and the third region are located inside the first region.
Further, the infrared receiver is an infrared camera.
According to another aspect of the present application, there is provided an electronic device including any one of the displays.
Use the technical scheme of this application, among the above-mentioned display, infrared touch module sets up in backlight unit's accommodation space, for prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up in backlight unit's top and side promptly, the thickness of whole display is backlight unit's thickness only, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is backlight unit's width only, but not the width that shows plus infrared touch module's partial width, consequently, the thickness of this display is less and the width is less.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic diagram of a conventional infrared touch lcd;
FIG. 2 is a schematic diagram of an infrared touch liquid crystal display according to an embodiment of the present disclosure; and
fig. 3 is a schematic diagram of another infrared touch liquid crystal display according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a backlight module; 11. a back plate; 12. an optical component; 121. a diffusion element; 122. an optical film; 123. a liquid crystal panel; 124. a cover plate; 13. an accommodating space; 14. a first light emitting device; 15. a reflective element; 16. a lens; 17. a light emitting device; 20. an infrared touch module; 21. a second light emitting device; 22. an infrared receiver; 23. and (4) a diffusion structure.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As described in the background, in the related art, the infrared touch device of the infrared touch lcd is partially disposed above the backlight device and partially disposed at the side of the backlight device. Such prototypes are thick, look heavy and have a wide width. In order to solve the problems that the thickness of the infrared touch liquid crystal display is thick and the frame is wide, the application provides a display and electronic equipment.
In an exemplary embodiment of the present application, a display is provided. The display comprises a backlight module and an infrared touch module, wherein the backlight module is provided with an accommodating space, and the infrared touch module is positioned in the accommodating space.
In this application, among the above-mentioned display, infrared touch module sets up in backlight unit's accommodation space, for prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up the top and the side at backlight unit promptly, the thickness of whole display is backlight unit's thickness only, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is backlight unit's width only, but not the width that shows plus infrared touch module's partial width, consequently, the thickness of this display is less and the width is less.
In an embodiment of the present application, as shown in fig. 2, the backlight module includes a back plate 11, an optical assembly 12 and a first light emitting device 14, the optical assembly 12 is set on the back plate 11, and the optical assembly 12 and the back plate 11 form the accommodating space 13; the first light emitting device 14 is disposed on a surface of the back plate 11 and located in the accommodating space 13, and the first light emitting device 14 is configured to emit white light.
In another embodiment of the present application, as shown in fig. 2, the optical assembly 12 includes a diffusing element 121, an optical film 122, a liquid crystal panel 123 and a cover plate 124 in sequence in a direction away from the back plate 11. The white light emitted from the first light emitting device 14 passes through the diffusion member 121 and the optical film 122, and then becomes a uniform surface light source, which provides a sufficient light source for the liquid crystal panel 123.
The optical elements in the optical module of the present application are not limited to the above-mentioned ones, and an optical module having suitable optical elements may be specifically provided according to practical circumstances.
In another embodiment of the present invention, as shown in fig. 2, the diffusion element 121, the optical film 122, the liquid crystal panel 123, and the cover plate 124 are sequentially disposed in contact with each other, that is, stacked, so that the diffusion element 121, the optical film 122, the liquid crystal panel 123, and the cover plate 124 are fully attached to each other, and the thickness of the infrared touch liquid crystal display is further reduced by the fully attached design compared to the case where the diffusion element, the optical film, the liquid crystal panel, and the cover plate are disposed at intervals.
In another embodiment of the present application, as shown in fig. 2, the infrared touch module includes a second light emitting device 21, an infrared receiver 22 and a diffusion structure 23, the second light emitting device 21 and the first light emitting device 14 are disposed on the surface of the back plate 11 at an interval and located in the accommodating space 13, and the second light emitting device 21 is configured to emit infrared light; an infrared receiver 22 is disposed on the surface of the back plate 11 in the accommodating space 13 and on one side of the second light emitting device 21 to receive the reflected infrared light; the diffusion structure 23 is located in the accommodating space 13 and on the surface of the diffusion element 121. When a finger presses the cover plate (toughened glass), the diffusion element reflects more infrared light than diffuse reflection, the reflected infrared light is read by the infrared camera to form an electric signal, and finally, the electric signal is calculated by a related software program to form a specific touch coordinate and fed back to form a screen action, namely, the infrared camera detects the change of the reflected infrared light when the finger presses the cover plate (toughened glass) to position the touch position.
In another embodiment of the present application, as shown in fig. 2, there are a plurality of the diffusion structures 23, the diffusion structures 23 are diffusion particles, the infrared light emitted from the second light emitting device 21 is transmitted to the surface of the optical assembly 12, and the plurality of diffusion particles are disposed on the surface of the optical assembly 12, so that the infrared light transmitted to the surface of the diffusion element 121 is uniformly and diffusely reflected, and then reflected to the back plate 11.
In another embodiment of the present application, as shown in fig. 2, the backlight module further includes a reflective element 15 located on a surface of the back plate 11 close to the accommodating space 13, and the first light emitting device 14 is located on the reflective element 15, the reflective element 15 further reflects the white light that does not pass through the optical assembly when the white light is reflected to the surface of the reflective element 15, and further transmits the white light to the optical assembly 12, so that more white light passes through the optical assembly 12, that is, the brightness of the liquid crystal panel 123 is further increased.
Specifically, as shown in fig. 2 and 3, the back plate includes a bottom plate and a side plate, and the reflective element includes a bottom reflective element and a side reflective element, wherein the side reflective element is overlapped on the side plate, and the bottom reflective element is disposed on the bottom plate of the back plate in contact.
In another embodiment of the present application, as shown in fig. 2, the backlight module further includes a lens 16, the lens 16 is located in the accommodating space 13 and between the optical assembly 12 and the first light emitting device 14, a projection of the lens 16 on the surface of the back plate 11 is a first region, a projection of the first light emitting device 14 on the back plate 11 is a second region, a projection of the second light emitting device 21 adjacent to the first light emitting device 14 on the back plate 11 is a third region, and the second region and the third region are located inside the first region. That is, the lens 16 is covered above the first light emitting device 14 and the second light emitting device 21, so that the white light emitted from the first light emitting device 14 and the infrared light emitted from the second light emitting device 21 are scattered by the lens 16.
In yet another embodiment of the present application, as shown in fig. 2 and fig. 3, the first light emitting device 14 and the second light emitting device 21 are LEDs, respectively, and the first light emitting device 14 and the second light emitting device 21 can be integrated in one light emitting apparatus 17, specifically, by providing a dual-channel chip in the light emitting apparatus 17, wherein one chip emits blue light, excites the phosphor to generate green light and red light, and mixes the green light and the red light to generate white light; the other chip generates infrared light that can be received by an infrared camera.
In one specific embodiment of the present application, as shown in fig. 3, the infrared receiver 22 is located between two adjacent light emitting devices 17, so that the infrared camera can receive more infrared light.
It should be noted that only two light emitting devices 17 are shown in fig. 3, and in practice, there are a plurality of light emitting devices 17 in the display, which are not shown only due to the size of the figure.
It should be noted that fig. 2 and 3 only show a part of the display, and if the part shown in fig. 2 and 3 is a part on the left side of the display, the display correspondingly includes a part on the right side, and the right side and the left side are symmetrical to each other (here, "left" and "right" are both directions determined when a person faces the display screen or the paper).
In another embodiment of the present application, as shown in fig. 2 and 3, the infrared receiver 22 is an infrared camera, and an infrared receiving component of the infrared camera can receive a part of the infrared light and convert the received infrared light into an electrical signal, and the electrical signal is stable in the case that the screen is not subjected to an external force. Of course, the infrared receiver of the present application is not limited to the infrared camera, and may be any optical element that can receive infrared light.
Another exemplary embodiment of the present application provides an electronic device, which includes any one of the above displays, in which the infrared touch module is disposed in the accommodating space of the backlight module, and compared with the prior art, the infrared touch module and the backlight module do not need to be separately disposed, that is, the infrared touch module does not need to be disposed above and on the side of the backlight module, the thickness of the entire display is only the thickness of the backlight module, but not the thickness of the backlight module plus a part of the thickness of the infrared touch module, and the width of the entire display is only the width of the backlight module, but not the width of the display plus a part of the width of the infrared touch module, so that the thickness and the width of the display are smaller.
In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions and the technical effects will be described below with reference to specific embodiments.
Examples
The embodiment relates to a display, which comprises a backlight module and an infrared touch module, wherein the backlight module is provided with an accommodating space, and the infrared touch module is positioned in the accommodating space of the backlight module.
As shown in fig. 2, the backlight module includes a back plate 11, an optical assembly 12 and a first light emitting device 14, a reflective member 15 and a lens 16.
The optical assembly 12 is mounted on the back plate 11, and the optical assembly 12 and the back plate 11 form an accommodating space 13. The first light emitting device 14 is disposed on a surface of the rear plate 11 and located in the accommodating space 13, and the first light emitting device 14 is for emitting white light.
The reflective element 15 is located on the surface of the back plate 11 close to the accommodating space 13, and the first light emitting device 14 is located on the reflective element 15, the reflective element 15 further reflects the white light that is not transmitted through the optical assembly when the white light is reflected onto the surface of the reflective element 15, and then transmits the white light to the optical assembly 12, so that more white light is transmitted through the optical assembly 12, that is, the brightness of the liquid crystal panel 123 is further increased. The back plate 11 comprises a bottom plate and side plates, and the reflective element 15 comprises a bottom reflective element and a side reflective element, wherein the side reflective element is overlapped on the side plates, and the bottom reflective element is arranged on the bottom plate of the back plate in a contact manner.
The lens 16 is located in the accommodating space 13 and between the optical assembly 12 and the first light-emitting device 14, a projection of the lens 16 on the surface of the back plate 11 is a first area, a projection of the first light-emitting device 14 on the back plate 11 is a second area, a projection of the second light-emitting device 21 adjacent to the first light-emitting device 14 on the back plate 11 is a third area, and the second area and the third area are located inside the first area. That is, the lens 16 is covered above the first light emitting device 14 and the second light emitting device 21, so that the white light emitted from the first light emitting device 14 and the infrared light emitted from the second light emitting device 21 are diffused through the lens 16.
The optical assembly 12 includes, in order in a direction away from the back plate 11, a diffusing member 121, an optical film 122, a liquid crystal panel 123, and a cover plate 124. The diffusion element 121, the optical film 122, the liquid crystal panel 123 and the cover plate 124 are sequentially arranged in a contact manner, that is, the diffusion element 121, the optical film 122, the liquid crystal panel 123 and the cover plate 124 are completely attached, and compared with the case that the diffusion element, the optical film, the liquid crystal panel and the cover plate are arranged at intervals, the infrared touch liquid crystal display is further made to be thinner by the aid of the completely attached design. The white light emitted from the first light emitting device 14 passes through the diffusion member 121 and the optical film 122, and then becomes a uniform surface light source, which provides a sufficient light source for the liquid crystal panel 123.
The infrared touch module comprises a second light emitting device 21, an infrared receiver 22 and a diffusion structure 23, the second light emitting device 21 and the first light emitting device 14 are arranged on the surface of the back plate 11 at intervals and are located in the accommodating space 13, and the second light emitting device 21 is used for emitting infrared light; the infrared receiver 22 is located on the surface of the back plate 11 in the accommodating space 13 and on one side of the second light emitting device 21 to receive the reflected infrared light; the diffusing structure 23 is located within the receiving space 13 and on the surface of the diffusing element 121. The plurality of diffusion structures 23 are diffusion particles, the infrared light emitted by the second light emitting device 21 is transmitted to the surface of the optical assembly 12, and the plurality of diffusion particles are disposed on the surface of the optical assembly 12, so that the infrared light transmitted to the surface of the diffusion element 121 is uniformly and diffusely reflected, and is further reflected to the back plate 11. When a finger presses a cover plate (tempered glass), the diffusion element reflects more infrared light than diffuse reflection, the reflected infrared light is read by the infrared camera to form an electric signal, and finally, a specific touch coordinate is formed through calculation of a related software program and fed back to form a screen action.
Specifically, as shown in fig. 3, the first light emitting device 14 and the second light emitting device 21 are integrated in one light emitting apparatus 17, specifically by providing a dual-channel chip in the light emitting apparatus 17, wherein one chip emits blue light, excites the phosphor to generate green light and red light, and the mixture generates white light; the other chip generates infrared light that can be received by an infrared camera. The infrared receiver 22 is located between two adjacent light emitting devices 17, so that the infrared camera can receive more infrared light.
The display of this embodiment, infrared touch module sets up in backlight unit's accommodation space, for prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up in backlight unit's top and side promptly, the thickness of whole display is backlight unit's thickness only, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is backlight unit's width only, but not the width that shows plus infrared touch module's partial width, consequently, the thickness of this display is less and the width is less.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) the utility model provides a display, infrared touch module sets up in backlight unit's accommodation space, for prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up in backlight unit's top and side promptly, the thickness of whole display is only backlight unit's thickness, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is only backlight unit's width, but not the width that shows plus infrared touch module's partial width, therefore, the thickness of this display is less and the width is less.
2) The electronic equipment of this application, infrared touch module sets up in backlight unit's accommodation space, for prior art, infrared touch module and backlight unit need not independent setting, infrared touch module need not to set up in backlight unit's top and side promptly, the thickness of whole display is only backlight unit's thickness, but not backlight unit's thickness plus infrared touch module's partial thickness, the width of whole display is only backlight unit's width, but not the width that shows plus infrared touch module's partial width, therefore, the thickness of this display is less and the width is less.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The display is characterized by comprising a backlight module and an infrared touch module, wherein the backlight module is provided with an accommodating space, and the infrared touch module is positioned in the accommodating space.
2. The display of claim 1, wherein the backlight module comprises:
a back plate;
the optical assembly is erected on the back plate, and the optical assembly and the back plate form the accommodating space;
the first light-emitting device is arranged on the surface of the back plate and positioned in the accommodating space, and the first light-emitting device is used for emitting white light.
3. The display of claim 2, wherein the optical assembly comprises, in order in a direction away from the back plate, a diffusing element, an optical film, a liquid crystal panel, and a cover plate.
4. The display of claim 3, wherein the diffusing element, the optical film, the liquid crystal panel, and the cover plate are disposed in contact in that order.
5. The display according to any one of claims 2 to 4, wherein the infrared touch module comprises:
the second light-emitting device is arranged on the surface of the back plate at a distance from the first light-emitting device and is positioned in the accommodating space, and the second light-emitting device is used for emitting infrared light;
an infrared receiver located on the surface of the back plate in the accommodating space and at one side of the second light emitting device to receive the reflected infrared light;
a diffusion structure located within the receiving space and on a surface of the diffusion element.
6. The display according to claim 5, wherein the diffusion structure is a plurality of diffusion structures, and the diffusion structures are diffusion particles.
7. The display according to any one of claims 2 to 4, wherein the backlight module further comprises:
a reflective element on a surface of the back plate near the receiving space, and the first light emitting device is on the reflective element.
8. The display of claim 5, wherein the backlight module further comprises a lens, the lens is located in the accommodating space and located between the optical assembly and the first light emitting device, a projection of the lens on the surface of the back plate is a first area, a projection of the first light emitting device on the back plate is a second area, a projection of the second light emitting device adjacent to the first light emitting device on the back plate is a third area, and the second area and the third area are located inside the first area.
9. The display of claim 5, wherein the infrared receiver is an infrared camera.
10. An electronic device characterized by comprising a display as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911102154.0A CN110780487A (en) | 2019-11-12 | 2019-11-12 | Display and electronic equipment |
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| CN201911102154.0A CN110780487A (en) | 2019-11-12 | 2019-11-12 | Display and electronic equipment |
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| CN110780487A true CN110780487A (en) | 2020-02-11 |
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