Display device and electronic equipment

Abstract

The present application provides a display device and an electronic device. The display device includes a stacked backlight module and a display panel. The backlight module includes a first light-emitting element, a second light-emitting element, and a controller. The first light-emitting element is used to emit visible light, and the second light-emitting element is used to emit near-infrared light. The near-infrared light can heat the user's skin. The controller electrically connects the first light-emitting element and the second light-emitting element. The controller controls the first light-emitting element to work in the display mode of the display device to form a display image, and controls the first light-emitting element and the second light-emitting element to work in the display mode and the skin care mode, and controls the second light-emitting element to work in the screen-off mode and the skin care mode. In the display device provided by the present application, even if the user does not use the display device to display images, the display device can emit near-infrared light to heat and beautify the user's skin, further improving the beauty and maintenance effect of the display device on the user's skin.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and an electronic device. Background Art

[0002] With the development of optoelectronic display technology and semiconductor manufacturing technology, thin film transistor-liquid crystal display (TFT-LCD) has become increasingly mature and has been used more and more widely due to its advantages such as lightness, thinness and portability.

[0003] However, in the related art, the display device is generally only used to display images, and how to improve the functionality of the display device becomes a technical problem that needs to be solved. Summary of the invention

[0004] The purpose of the present application is to provide a display device and an electronic device, and to solve the technical problem of how to improve the functionality of the display device.

[0005] In a first aspect, the present application provides a display device, comprising a backlight module and a display panel which are stacked, wherein the backlight module comprises:

[0006] A first light-emitting element, wherein the first light-emitting element is used to emit visible light;

[0007] a second light emitting element, the second light emitting element being configured to emit near infrared light, the near infrared light being capable of heating the user's skin; and

[0008] A controller is provided, wherein the controller is electrically connected to the first light-emitting component and the second light-emitting component, and the controller controls the first light-emitting component to operate in the display mode of the display device to form a display image, and controls the first light-emitting component and the second light-emitting component to operate in the display mode and the skin care mode, and controls the second light-emitting component to operate in the screen-off mode and the skin care mode.

[0009] In the display device provided by the present application, the controller controls the first light-emitting element to emit visible light in the display mode to form a display screen, controls the first light-emitting element to emit near-infrared light to heat the user's skin in the display mode and the skin care mode, and controls the second light-emitting element to emit near-infrared light in the screen-off mode and the skin care mode. At present, people are more and more aware of the health of their skin, but most people sit in the office for a long time and do not have enough time to take care of their skin. The near-infrared light emitted by the second light-emitting element in the display device of the present application can promote the proliferation of collagen deep under the user's skin, increase blood circulation and promote the decomposition of melanin by heating the user's skin. The display device has excellent beauty functions, allowing users to complete skin care while working. In addition, the display device of the present application is not only simple to operate, but also low in cost, which is conducive to the mass production of display devices.

[0010] Moreover, when the display device is in the screen-off mode, the second light-emitting element can continue to work and emit near-infrared light to heat and beautify the user's skin. In other words, even if the user does not use the display device to display images, the display device can still emit near-infrared light to heat and beautify the user's skin, further improving the beauty and maintenance effect of the display device on the user's skin.

[0011] Among them, the backlight module includes a light guide and a back plate, the back plate includes a bottom plate and a first side plate, a second side plate, a third side plate and a fourth side plate sequentially surrounded by the bottom plate, the light guide is arranged on the bottom plate, the second light-emitting element is arranged on at least one of the first side plate, the second side plate, the third side plate and the fourth side plate, and the second light-emitting element is arranged corresponding to the light guide, and the near-infrared light emitted by the second light-emitting element is diffused in the light guide and then emitted.

[0012] A light guide groove is provided on a side of the light guide member facing the second light emitting member, at least a portion of the second light emitting member is disposed in the light guide groove, and the near infrared light emitted by the second light emitting member enters the light guide member from the light guide groove.

[0013] Wherein, the light guiding groove is a hemispherical groove.

[0014] In which, the light guide member includes a light incident surface facing the second light-emitting member, the light incident surface is inclined relative to the second light-emitting member, and in the first direction, the inclination direction of the light incident surface is inclined towards a direction away from the second light-emitting member, and the first direction is the setting direction of the display panel, the light guide member and the back panel.

[0015] The first light-emitting component is disposed on the first side plate, and the second side plate, the third side plate and the fourth side plate are all provided with the second light-emitting component.

[0016] The first light-emitting component is disposed on the bottom plate, and the first side plate, the second side plate, the third side plate and the fourth side plate are all provided with the second light-emitting component.

[0017] Wherein, the display panel further comprises a light control component, and the light control component is in a light-transmitting state when the first light-emitting element is working; the controller is also used for controlling the light control component to be in a light-transmitting state when the second light-emitting element is working.

[0018] Wherein, the display device further includes at least one distance detector, which is used to detect the actual distance between the user and the display device. When the actual distance is less than the maximum value of the preset range, the distance detector sends a first signal; when the actual distance is greater than the maximum value of the preset range, the distance detector sends a second signal;

[0019] The controller is electrically connected to the distance detector and the second light-emitting element. The controller is used to control the second light-emitting element to emit the near-infrared light according to the first signal. The controller is also used to control the second light-emitting element to stop working according to the second signal.

[0020] In a second aspect, the present application provides an electronic device, including a power supply device and the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an electronic device provided in the first embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the overall structure of a display device provided in Embodiment 1 of the present application;

[0024] Figure 3a is a schematic cross-sectional structural diagram of a display device provided in Embodiment 1 of the present application;

[0025] Figure 3b This is a schematic diagram of the optical path of near-infrared light in a display device provided in the first embodiment of the present application;

[0026] Figure 4 This is a connection diagram of the first light-emitting element, the second light-emitting element, the distance detector and the controller provided in the first embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the structure of a backplane provided in Embodiment 1 of the present application;

[0028] Figure 6a is a schematic cross-sectional structural diagram of a display device provided in Embodiment 2 of the present application;

[0029] Figure 6b This is a schematic diagram of the optical path of near-infrared light in a display device provided in Embodiment 2 of the present application;

[0030] Figure 7 is a schematic diagram of a cross-sectional structure of a display device provided in Embodiment 3 of the present application;

[0031] Figure 8 It is a structural schematic diagram of a first light-emitting element, a second light-emitting element and a back plate provided in the second embodiment of the present application;

[0032] Fig. 9 It is a structural schematic diagram of a first light-emitting component, a second light-emitting component and a back panel provided in the first embodiment of the present application.

[0033] Description of labels:

[0034] Electronic device 1000, display device 100, backlight module 1, display panel 2, light control component 201, second light-emitting element 10, near-infrared lamp bead 11, distance detector 20, controller 30, reflection plate 40, light guide element 50, first light guide area 501, second light guide area 502, light guide groove 51, first groove bottom 511, second groove bottom 512, light incident surface 52, back panel 60, bottom panel 61, first side panel 62, second side panel 63, third side panel 64, fourth side panel 65, first light-emitting element 80. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the orientation of the constituent elements being described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the circumstances.

[0039] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the meanings of the above terms in this disclosure can be understood according to the circumstances.

[0040] With the development of optoelectronic display technology and semiconductor manufacturing technology, thin film transistor-liquid crystal display (TFT-LCD) has become increasingly mature and has been used more and more widely due to its advantages such as lightness, thinness and portability.

[0041] However, in the related art, as the liquid crystal display device technology has been developed for a long time, the technical differences between various types of display devices are not large, and the display device can generally only be used to display images. Differentiated performance can make the product more competitive, so how to improve the functionality of the display device has become a technical problem that needs to be solved.

[0042] Please refer to Figure 1 , Figure 1 This is a schematic diagram of an electronic device structure provided in Embodiment 1 of the present application. The present application provides a display device 100 and an electronic device 1000 to solve the technical problem of how to improve the functionality of the display device, and the display device 100 is applied to the electronic device 1000.

[0043] The electronic device 1000 may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a PDA, a personal computer (PC), a personal digital assistant (PDA), a portable media player (PMP), an unmanned vehicle, a sweeping robot, headphones, a camera, and the like.

[0044] The electronic device 1000 comprises a power supply device and the display device 100 , and the power supply device is used to supply power to the display device.

[0045] Please refer to Figure 2 , Figure 3a , Figure 3b and Figure 4 , Figure 2 is a schematic diagram of the overall structure of a display device provided in the first embodiment of the present application, Figure 3a is a schematic cross-sectional structural diagram of a display device provided in Embodiment 1 of the present application, Figure 3b is a schematic diagram of the optical path of near-infrared light in a display device provided in the first embodiment of the present application, Figure 4 It is a connection diagram of the first light-emitting element, the second light-emitting element, the distance detector and the controller provided in the first embodiment of the present application.

[0046] The present application provides a display device 100, which includes a stacked backlight module 1 and a display panel 2. The backlight module 1 is used to provide light to the display panel 2, and the display panel 2 is used to allow the light of the backlight module 1 to pass through and form a display screen to display the screen information required by the user.

[0047] The backlight module 1 includes a first light emitting element 80, a second light emitting element 10 and a controller 30. The first light emitting element 80 is used to emit visible light. The second light emitting element 10 is used to emit near infrared light, which can heat the user's skin.

[0048] The controller 30 is electrically connected to the first light-emitting component 80 and the second light-emitting component 10. The controller 30 controls the first light-emitting component 80 to operate in the display mode of the display device 100 to form a display image, controls the first light-emitting component 80 and the second light-emitting component 10 to operate in the display mode and the skin care mode, and controls the second light-emitting component 10 to operate in the screen-off mode and the skin care mode.

[0049] The first light emitting element 80 is used to emit the visible light, and the visible light is emitted to the display panel 2 to form a display image.

[0050] The wavelength range of the visible light is 400nm-760nm. For example, the wavelength of the near-infrared light can be 400nm, or 450nm, or 500nm, or 530nm, or 570nm, or 600nm, or 610nm, or 670nm, or 760nm, or other values ​​within the range of 400nm-760nm, and the present application is not limited to this.

[0051] The second light emitting element 10 is used to emit the near infrared light, which can heat the user's skin. The thermal effect of the near infrared light can not only promote the proliferation of collagen under the human skin, but also increase blood circulation and promote the decomposition of melanin.

[0052] The near infrared light is an electromagnetic wave with a specific wavelength. Optionally, the wavelength range of the near infrared light of the present application is 900nm-1800nm. For example, the wavelength of the near infrared light can be 900nm, or 950nm, or 1000nm, or 1200nm, or 1500nm, or 1530nm, or 1780nm, or 1800nm, or other values ​​within 900nm-1800nm, and the present application does not limit this. If the wavelength of the near infrared light is less than 900nm, the heating effect of the near infrared light on human skin will be greatly reduced. Because the near infrared light is emitted by the second light-emitting element 10, it is subject to the power limit of the second light-emitting element 10, and the wavelength of the near infrared light emitted by the second light-emitting element 10 is generally less than 1800nm.

[0053] Specifically, electromagnetic waves in the 900nm-1800nm ​​band can penetrate the human epidermis and directly heat the water molecules under the epidermis. Through thermal action, it can energize damaged cells, promote deep collagen repair and regeneration, accelerate blood circulation, and discharge pigmentation and skin metabolic waste. At the same time, the safe temperature that the surface of the human skin can withstand is generally 40℃-43℃. If it exceeds this temperature, there will be a risk of burns. The near-infrared light can quickly heat the user's skin to 43℃ within 20 seconds, and can maintain a constant temperature over a large area, thereby improving the user's skin condition.

[0054] The backlight module 1 also includes the controller 30, and the controller 30 is electrically connected to the first light-emitting element 80 and the second light-emitting element 10. The display device 100 includes a display mode, a screen-off mode, and a skin-care mode. When the display device 100 is in the display mode, the controller 30 controls the first light-emitting element 80 to work and form a display screen. When the display device 100 is in the screen-off mode, the controller controls the first light-emitting element 80 to stop emitting light, and the display panel 2 of the display device 100 is in a dark state. When the display device 100 is in the skin-care mode, the second light-emitting element 10 is controlled to work to emit near-infrared light to provide beauty and skin care for the user.

[0055] The display device 100 can be in the display mode and the skin care mode at the same time, the controller 30 controls both the first light-emitting element 80 and the second light-emitting element 10 to work, and the display device 100 heats the user's skin while displaying the picture. The display device 100 can also be in the screen-off mode and the skin care mode at the same time, the controller 30 controls the first light-emitting element 80 not to work and the second light-emitting element 10 to work, and the display device 100 can heat the user's skin while the screen is off.

[0056] In the display device 100 provided in the present application, the controller 30 controls the first light-emitting element 80 to work and emit visible light in the display mode to form a display screen, and controls the first light-emitting element 80 to work and controls the second light-emitting element 10 to work and emit near-infrared light to heat the user's skin in the display mode and the skin care mode, and controls the second light-emitting element 10 to work in the screen-off mode and the skin care mode. At present, people are more and more aware of the health of their skin, and most people sit in the office for a long time and do not have enough time to take care of their skin. The near-infrared light emitted by the second light-emitting element 10 in the display device 100 of the present application can promote the proliferation of collagen deep under the user's skin, increase blood circulation and promote the decomposition of melanin by heating the user's skin. The display device 100 has excellent beauty functions, allowing users to complete skin care while working. And the display device 100 of the present application is not only simple to operate, but also low in cost, which is conducive to the mass production of the display device 100.

[0057] Furthermore, when the display device 100 is in the screen-off mode, the second light-emitting element 10 can continue to work and emit the near-infrared light to heat and beautify the user's skin. In other words, even if the user does not use the display device 100 to display images, the display device 100 can still emit the near-infrared light to heat and beautify the user's skin, thereby further improving the beauty and maintenance effect of the display device 100 on the user's skin and improving the intelligence level of the display device 100.

[0058] Please refer again Figure 3a The display panel 2 further includes a light control component 201, and the light control component 201 is in a light-transmitting state when the first light-emitting element 80 is working. The controller 30 is also used to control the light control component 201 to be in a light-transmitting state when the second light-emitting element 10 is working.

[0059] The display panel 2 further includes the light control component 201. In other words, the light control component 201 is a liquid crystal layer. The light control component 201 includes a plurality of liquid crystal molecules. When the first light emitting element 80 is in operation, visible light is emitted, and the liquid crystal molecules in the light control component 201 are deflected and in a light-transmitting state, so that the visible light can pass through the light control component 201 to form a display screen.

[0060] When the second light emitting element 10 is in operation, it emits near-infrared light, and the liquid crystal molecules in the light control component 201 are deflected and in a light-transmitting state, so that the near-infrared light can pass through the light control component 201 and irradiate the user's skin.

[0061] When the display device 100 is in the screen-off mode and the skin care mode, the controller 30 can control the light control component 201 to be in a light-transmitting state, and enable the second light-emitting element 10 to emit the near-infrared light that can pass through the light control component 201 and irradiate the user's skin.

[0062] The liquid crystal structure mode of the light control component 201 may also be a common twisted nematic liquid crystal (TN) mode, an in-plane switching liquid crystal (IPS) mode, or a fringe field switching liquid crystal (FFS) mode, etc.

[0063] Please refer to Figure 2 , Figure 3a and Figure 5 , Figure 51 is a schematic diagram of the structure of a backplane provided in the first embodiment of the present application. The backlight module 1 includes a light guide 50 and a backplane 60, the backplane 60 includes a bottom plate 61 and a first side plate 62, a second side plate 63, a third side plate 64 and a fourth side plate 65 which are sequentially connected to the bottom plate 61, the light guide 50 is arranged on the bottom plate 61, the second light-emitting element 10 is arranged on at least one of the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65, and the second light-emitting element 10 is arranged corresponding to the light guide 50, and the near-infrared light emitted by the second light-emitting element 10 is diffused in the light guide 50 and then emitted.

[0064] The backlight module 1 further includes the light guide 50, which is disposed on the bottom plate 61 and is used to homogenize the visible light emitted by the first light emitting element 80 and the near infrared light emitted by the second light emitting element 10, and to make the near infrared light and the visible light emitted from the display panel 2. Optionally, the light guide 50 includes but is not limited to a light guide plate.

[0065] The light guide 50 is used to homogenize the visible light emitted by the first light emitting element 80, so as to increase the visible light emission range in the display device 100, thereby improving the display effect of the display device 100. The light guide 50 is also used to homogenize the near-infrared light emitted by the second light emitting element 10, so as to increase the near-infrared light emission range in the display device 100, thereby increasing the effective beauty area of ​​the display device 100.

[0066] In one embodiment, the light guide member 50 includes a first light guide area 501 and a second light guide area 502, wherein the first light guide area 501 is an area of ​​the light guide member 50 close to the second light-emitting member 10, and the second light guide area 502 is an area of ​​the light guide member 50 facing the first light-emitting member 80.

[0067] The light guide 50 is provided with a plurality of light guide points on one side facing the first light emitting element 80, and the light guide points can be used to totally reflect the near infrared light in the light guide 50. The present application does not limit how the light guide points totally reflect the near infrared light, and the light guide points can reflect the near infrared light, or reflective particles that reflect the near infrared light can be provided around the light guide points, and the reflective particles reflect the near infrared light, so that the near infrared light will not be projected onto the first light emitting element 80 and affect the emission of the visible light.

[0068] In one embodiment, the light-guiding mesh point may be a dichroic mirror, the transmission band range of the dichroic mirror is set to 400nm-760nm, and the reflection band range of the dichroic mirror is set to 900nm-1800nm. The dichroic mirror can be used to transmit the visible light and reflect the near-infrared light.

[0069] Further, the density of the light guiding dots in the first light guiding area 501 is a first density, the density of the light guiding dots in the second light guiding area 502 is a second density, and the first density is greater than the second density.

[0070] The back plate 60 includes the bottom plate 61 and the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65 which are sequentially connected to the bottom plate 61. The second light-emitting member 10 is provided on at least one of the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65. In other words, the second light-emitting member 10 can be provided on the first side plate 62, the second side plate 63, the third side plate 64 or the fourth side plate 65. The second light-emitting member 10 can also be provided on any two of the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65. The second light-emitting member 10 can also be provided on any three of the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65. The second light-emitting member 10 can also be provided on any one of the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65. The present application does not limit this.

[0071] In this embodiment, the installation sequence of the display device 100 is: first place the back panel 60 flat on the operating platform, and attach a rubber strip for sticking the first light-emitting component 80 and the second light-emitting component 10; install the first light-emitting component 80 and the second light-emitting component 10 on the rubber strip; install the light guide 50; and finally install the optical film and the display panel 2.

[0072] Please refer to Figure 6a and Figure 6b , Figure 6a is a schematic cross-sectional structure diagram of a display device provided in Embodiment 2 of the present application, Figure 6b Schematic diagram of the optical path of near-infrared light in a display device provided in Embodiment 2 of the present application. In one embodiment, a light guide groove 51 is provided on a side of the light guide member 50 facing the second light emitting member 10, at least a portion of the second light emitting member 10 is disposed in the light guide groove 51, and the near-infrared light emitted by the second light emitting member 10 enters the light guide member 50 from the light guide groove 51.

[0073] The second light-emitting component 10 includes a plurality of near-infrared lamp beads 11, and the near-infrared lamp beads 11 are used to emit the near-infrared light. The near-infrared lamp beads 11 are arranged in the light-guiding groove 51, and the near-infrared light emitted by the near-infrared lamp beads 11 enters the light-guiding component 50 from the light-guiding groove 51. Both ends of the light-guiding groove 51 abut against the lamp board of the second light-emitting component 10, and the light-guiding groove 51 accommodates the near-infrared lamp beads 11 and prevents the near-infrared light emitted by the near-infrared lamp beads 11 from irradiating other parts, so as to improve the light utilization rate of the near-infrared light.

[0074] Optionally, in this embodiment, the light guiding groove 51 is a hemispherical groove.

[0075] The light guide groove 51 is a hemispherical groove, which can refract the near-infrared light incident on the light guide groove 51 to the light guide member, and then radiate the near-infrared light, so that the display device 100 can refract the limited near-infrared light more comprehensively to the display panel 2, thereby achieving the best skin care effect. At the same time, the provision of the light guide groove 51 can also reduce the number of the near-infrared light beads 11, thereby reducing costs.

[0076] The display device 100 further includes a reflective plate 40, which is disposed between the light guide 50 and the bottom plate 61. The reflective plate 40 can be used to reflect the near-infrared light and refract the near-infrared light to be perpendicular to the display panel 2, thereby improving the coverage effect of the near-infrared light in the display device 100. Optionally, a plurality of reflective particles are disposed in the reflective plate 40 or the reflective plate 40 is made of a metal reflective material.

[0077] Please refer to Figure 7 , Figure 7 It is a schematic diagram of the cross-sectional structure of a display device provided in Embodiment 3 of the present application. In another embodiment, the light guide groove 51 is a triangular groove, and the light guide groove 51 includes a first groove bottom 511 and a second groove bottom 512 connected by bending, the first groove bottom 511 is closer to the display panel 2 relative to the second groove bottom 512, the length of the first groove bottom 511 is greater than the second groove bottom 512, and the first groove bottom 511 can be used to refract the direction of the near-infrared light to be perpendicular to the display panel 2, thereby improving the coverage effect of the near-infrared light in the display device 100. The second groove bottom 512 can be used to block the near-infrared light and guide the near-infrared light into the light guide 50, thereby improving the utilization rate of the near-infrared light.

[0078] Please refer again Figure 3aIn another embodiment, the light guide 50 includes a light incident surface 52 facing the second light-emitting component 10, and the light incident surface 52 is inclined relative to the second light-emitting component 10, and in the first direction, the inclination direction of the light incident surface 52 is inclined toward a direction away from the second light-emitting component 10, and the first direction is the setting direction of the display panel 2, the light guide and the back panel 60.

[0079] The light incident surface 52 may be used to refract the near infrared light to be perpendicular to the display panel 2 , thereby improving the coverage effect of the near infrared light in the display device 100 .

[0080] The display device 100 is an edge-type display device. The first light-emitting element 80 is disposed on the first side plate 62 , and the second light-emitting element 10 is disposed on at least one of the second side plate 63 , the third side plate 64 , and the fourth side plate 65 .

[0081] Please refer to Figure 8 , Figure 8 1 is a schematic diagram of the structure of a first light-emitting component, a second light-emitting component and a back panel provided in Embodiment 2 of the present application. In this embodiment, the first light-emitting component 80 is disposed on the first side panel 62, the second light-emitting component 10 is disposed on the third side panel 64, the first side panel 62 is the ground side of the display device 100, and the third side panel 64 is the sky side of the display device 100.

[0082] In other embodiments, the first light-emitting component 80 may be disposed on the first side panel 62, and the second side panel 63, the third side panel 64 and the fourth side panel 65 may all be provided with the second light-emitting component 10, thereby increasing the irradiation area of ​​the near-infrared light and increasing the heating area of ​​the display device 100 for the user's skin.

[0083] The display device 100 is a direct-lit display device. The first light-emitting element 80 is disposed on the bottom plate 61 , and the light-guiding element 50 is disposed on at least one of the second side plate 63 , the third side plate 64 , and the fourth side plate 65 .

[0084] Please refer to Fig. 9 , Fig. 9 1 is a schematic diagram of the structure of a first light emitting member, a second light emitting member and a back plate provided in Embodiment 1 of the present application. In this embodiment, the first light emitting member 80 is disposed on the bottom plate 61 , and the first light emitting member 80 is disposed on the third side plate 64 .

[0085] In other embodiments, the first light-emitting component 80 may be disposed on the bottom plate 61, and the first side plate 62, the second side plate 63, the third side plate 64 and the fourth side plate 65 may all be provided with the second light-emitting component 10, thereby increasing the irradiation area of ​​the near-infrared light and increasing the heating area of ​​the display device 100 for the user's skin.

[0086] Please refer again Figure 3a and Figure 4 The display device 100 also includes at least one distance detector 20, which is used to detect the actual distance between the user and the display device 100. When the actual distance is less than the maximum value of the preset range, the distance detector 20 sends a first signal. When the actual distance is greater than the maximum value of the preset range, the distance detector 20 sends a second signal.

[0087] The display device 100 also includes a controller 30, which is electrically connected to the distance detector 20 and the second light-emitting element 10. The controller 30 is used to control the second light-emitting element 10 to emit near-infrared light according to the first signal. The controller 30 is also used to control the second light-emitting element 10 to stop working according to the second signal.

[0088] The display device 100 further includes the distance detector 20, which can be used to detect the actual distance between the user and the display device 100. Optionally, the distance detector 20 includes but is not limited to a body sensor, an ultrasonic distance detector, a laser distance detector or other types of distance detectors.

[0089] The controller 30 is electrically connected to the distance detector 20 and the second light-emitting element 10, and the controller 30 can be used to control the operation or non-operation of the second light-emitting element 10. In addition, the controller 30 can control the operation of the second light-emitting element 10 according to the actual distance between the user and the display device 100. Specifically, the controller 30 controls whether the second light-emitting element 10 works by determining whether the actual distance is within the preset range. For example, when the controller 30 determines that the actual distance is within the preset range, the user is within the effective irradiation range of the second light-emitting element 10, and the controller 30 controls the second light-emitting element 10 to emit the near-infrared light. When the controller 30 determines that the actual distance is outside the preset range, the near-infrared light emitted by the second light-emitting element 10 cannot act on the user, and the controller 30 controls the second light-emitting element 10 to stop emitting the near-infrared light.

[0090] Further, when the actual distance is within the preset range (in other words, the user is located in the effective beauty area of ​​the display device 100), the ranging sensor sends a first signal and transmits it to the controller 30, and the controller 30 is used to control the second light-emitting element 10 to emit the near-infrared light according to the first signal; when the actual distance is outside the preset range (in other words, the user is not located in the effective beauty area of ​​the display device 100), the ranging sensor sends a second signal and transmits it to the controller 30, and the controller 30 is used to control the second light-emitting element 10 to stop emitting the near-infrared light according to the second signal.

[0091] Optionally, the present application does not limit the positions of the distance detector 20 and the controller 30 , and the distance detector 20 and the controller 30 may be disposed in the backlight module 1 or the display panel 2 or other devices.

[0092] In the display device 100 provided in the present application, the backlight module 1 includes the second light-emitting element 10, the distance detector 20 and the controller 30. The distance detector 20 is used to detect the actual distance between the display device 100 and the user. When the controller 30 determines that the actual distance is within the preset range, the controller 30 controls the second light-emitting element 10 to emit the near-infrared light, and the near-infrared light can be used to heat the user's skin. When the actual distance between the user and the display device 100 is within the preset range, the second light-emitting element 10 works and emits light, so that the near-infrared light emitted by the second light-emitting element 10 can act on the user's skin to the greatest extent, which can effectively reduce the energy consumption loss of the display device 100.

[0093] The present application does not limit the preset range, and the preset range can be adjusted according to the power of the second light-emitting element 10. In this embodiment, the preset range is 0 cm-100 cm, and in other embodiments, the preset range can also be 0 cm-70 cm, or 0 cm-80 cm, or 20 cm-90 cm, or other value ranges, which are not limited in the present application.

[0094] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A display device, comprising a backlight module and a display panel arranged in a stacked manner, characterized in that: The backlight module comprises: A first light-emitting element, wherein the first light-emitting element is used to emit visible light; a second light emitting element, the second light emitting element being configured to emit near infrared light, the near infrared light being capable of heating the user's skin; and A controller is provided, wherein the controller is electrically connected to the first light-emitting component and the second light-emitting component, and the controller controls the first light-emitting component to operate in the display mode of the display device to form a display image, and controls the first light-emitting component and the second light-emitting component to operate in the display mode and the skin care mode, and controls the second light-emitting component to operate in the screen-off mode and the skin care mode.

2. The display device according to claim 1, characterized in that The backlight module includes a light guide and a back plate, the back plate includes a bottom plate and a first side plate, a second side plate, a third side plate and a fourth side plate sequentially connected to the bottom plate, the light guide is arranged on the bottom plate, the second light-emitting element is arranged on at least one of the first side plate, the second side plate, the third side plate and the fourth side plate, and the second light-emitting element is arranged corresponding to the light guide, and the near-infrared light emitted by the second light-emitting element is emitted after being diffused in the light guide.

3. The display device according to claim 2, characterized in that: A light guide groove is provided on a side of the light guide member facing the second light emitting member, at least a portion of the second light emitting member is disposed in the light guide groove, and the near infrared light emitted by the second light emitting member enters the light guide member from the light guide groove.

4. The display device according to claim 3, characterized in that: The light guiding groove is a hemispherical groove.

5. The display device according to claim 2, characterized in that: The light guide member includes a light incident surface facing the second light-emitting member, the light incident surface is inclined relative to the second light-emitting member, and in a first direction, the inclination direction of the light incident surface is inclined toward a direction away from the second light-emitting member, and the first direction is the setting direction of the display panel, the light guide member and the back panel.

6. The display device according to claim 2, characterized in that: The first light emitting component is disposed on the first side plate, and the second side plate, the third side plate and the fourth side plate are all provided with the second light emitting component.

7. The display device according to claim 2, characterized in that: The first light emitting component is disposed on the bottom plate, and the first side plate, the second side plate, the third side plate and the fourth side plate are all provided with the second light emitting component.

8. The display device according to claim 1, characterized in that: The display panel also includes a light control component, which is electrically connected to the controller and is in a light-transmitting state when the first light-emitting element is working; the controller is also used to control the light control component to be in a light-transmitting state when the second light-emitting element is working.

9. The display device according to claim 8, characterized in that: The display device further comprises at least one distance detector, the distance detector being used to detect the actual distance between the user and the display device, and when the actual distance is less than a maximum value of a preset range, the distance detector sends a first signal; When the actual distance is greater than the maximum value of the preset range, the distance detector sends a second signal; The controller is electrically connected to the distance detector and the second light-emitting element. The controller is used to control the second light-emitting element to emit the near-infrared light according to the first signal. The controller is also used to control the second light-emitting element to stop working according to the second signal.

10. An electronic device, characterized in that: It comprises a power supply device and the display device according to any one of claims 1 to 9.

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