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 middle frame and at least one near-infrared light-emitting element. The middle frame is used to support the display panel. The middle frame includes a first supporting surface and a mounting surface. The first supporting surface abuts the display panel. The mounting surface is an inclined surface, and the mounting surface faces the display area of the display panel. The near-infrared light-emitting element is provided on the mounting surface. The near-infrared light-emitting element is used to emit near-infrared light toward the display panel. The near-infrared light can heat the user's skin. In the display device provided by the present application, the near-infrared light emitted by the near-infrared light-emitting element provided on the middle frame 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.

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) devices have become increasingly mature and have been widely used due to their advantages such as lightness, thinness and portability.

[0003] However, in related technologies, display devices are generally only used to display images, and how to improve the functionality of display devices has become a technical problem that needs to be solved. Summary of the Invention

[0004] The purpose of this application is to provide a display device and an electronic device 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 stacked backlight module and a display panel, wherein the backlight module comprises:

[0006] a middle frame, configured to carry the display panel, the middle frame comprising a first carrying surface and a mounting surface, the first carrying surface abutting the display panel, the mounting surface being an inclined surface, and the mounting surface facing the display area of the display panel;

[0007] At least one near-infrared light emitting element is disposed on the mounting surface, and is used for emitting near-infrared light toward the display panel, wherein the near-infrared light can heat the user's skin.

[0008] In the display device provided by the present application, a near-infrared light-emitting element is provided on a mounting surface, which is an inclined surface and faces the display area of the display panel. The near-infrared light-emitting element is used to emit near-infrared light toward the display area, and the near-infrared light can heat the user's skin. Currently, people are becoming more and more aware of skin health, 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 near-infrared 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.

[0009] Furthermore, the near-infrared light-emitting component is disposed on the mounting surface of the middle frame, and the near-infrared light-emitting component and the middle frame can be manufactured as a single product, which is beneficial to improving the manufacturing speed of the display device so as to facilitate mass production of the display device.

[0010] The first bearing surface and the mounting surface are arranged at an obtuse angle, and an included angle α between the first bearing surface and the mounting surface satisfies: 120°≤α≤150°.

[0011] Wherein, at least one mounting groove is provided on the mounting surface, and the mounting groove is used for mounting the near-infrared light-emitting element.

[0012] Wherein, the near-infrared light emitting element includes a plurality of near-infrared light emitting units, and the plurality of near-infrared light emitting units are used to emit the near-infrared light;

[0013] The mounting groove includes a connected mounting groove and a speaker groove, and the mounting groove is used to install the near-infrared light-emitting unit; the speaker groove is closer to the display panel than the mounting groove, and the inner diameter of the speaker groove close to the mounting groove is smaller than the inner diameter of the speaker groove away from the mounting groove.

[0014] Wherein, in a plane perpendicular to the arrangement direction of the plurality of near-infrared light-emitting units, an angle β between the inner wall of the horn groove and the central axis of the horn groove satisfies: 40°≤β≤80°.

[0015] Wherein, the inner wall shape of the horn groove is a concave spherical shape.

[0016] The backlight module further comprises a backplane, a visible light emitting element, and an optical film layer. The visible light emitting element and the middle frame are both arranged on the backplane. The optical film layer is arranged between the visible light emitting element and the display panel. The visible light emitting element is used to emit visible light to the optical film layer. The visible light passes through the optical film layer to the display panel to form a display image.

[0017] The middle frame further includes a second bearing surface for bearing the optical film layer, and the first bearing surface, the mounting surface, and the second bearing surface are bent and connected in sequence.

[0018] Wherein, the display device further comprises at least one distance detector, and the distance detector is used to detect the actual distance between the user and the display device;

[0019] The display device further includes a controller electrically connected to the distance detector and the near-infrared light emitting element. When the controller determines that the actual distance is less than a maximum value of a preset range, the controller controls the near-infrared light emitting element to emit the near-infrared light.

[0020] The middle frame includes a first frame and a second frame that are arranged opposite to each other, and the at least one near-infrared light-emitting element includes a first light-emitting element and a second light-emitting element, the first light-emitting element is arranged on the first frame, and the second light-emitting element is arranged on the second frame;

[0021] The near-infrared light emitted by the first light-emitting element and the near-infrared light emitted by the second light-emitting element intersect to form an effective working area. When the controller determines that the user is located in the effective working area, the controller controls the near-infrared light-emitting element to emit the near-infrared light.

[0022] In a second aspect, the present application provides an electronic device, which includes the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. 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.

[0024] Figure 1 This is a schematic diagram of the structure of an electronic device provided in the first embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the overall structure of a display device provided in Embodiment 1 of the present application;

[0026] Figure 3a This is a schematic diagram of the cross-sectional structure of a display device provided in the first embodiment of the present application. Figure 1 ;

[0027] 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;

[0028] Figure 4 This is a region division diagram of a display panel provided in the first embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of a display device provided in the first embodiment of the present application. Figure 2 ;

[0030] Figure 6 is a schematic cross-sectional structural diagram of a display device provided in Embodiment 2 of the present application;

[0031] Figure 7 This is a schematic diagram of a partial top view of a display device provided in the first embodiment of the present application;

[0032] Figure 8 1 is a cross-sectional schematic diagram of a display device including a visible light emitting element provided in the first embodiment of the present application;

[0033] Figure 9This is a schematic diagram of the connection between the near-infrared light emitting element, the distance detector, and the controller provided in the first embodiment of the present application;

[0034] Figure 10 This is a schematic diagram of an effective working area of a display device provided in the first embodiment of the present application.

[0035] Description of labels:

[0036] Electronic device-1000, display device-100, backlight module-1, display panel-2, display area-201, non-display area-202, near-infrared light-emitting element-10, first light-emitting element-101, second light-emitting element-102, near-infrared light-emitting unit-11, distance detector-20, controller-30, middle frame-40, first frame 401, second frame 402, first bearing surface-41, second bearing surface-42, mounting surface-43, mounting groove-44, mounting groove-441, speaker groove-442, optical film layer-50, back panel-60, visible light emitting element-80. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] It should be noted that the terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the orientation of the constituent elements being described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0041] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the meaning of these terms in this disclosure based on the specific circumstances.

[0042] With the development of optoelectronic display technology and semiconductor manufacturing technology, thin film transistor liquid crystal display (TFT-LCD) devices have become increasingly mature and have been widely used due to their advantages such as lightness, thinness and portability.

[0043] However, with the long-term development of liquid crystal display (LCD) technology, the technical differences between various types of display devices have become relatively small, and display devices are generally used only for displaying images. Differentiated performance can make products more competitive, so improving the functionality of display devices has become a technical problem that needs to be solved.

[0044] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device provided in Embodiment 1 of the present application. This application provides a display device 100 and an electronic device 1000 to solve the technical problem of how to improve the functionality of a display device. The display device 100 is applied to the electronic device 1000.

[0045] 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.

[0046] Please refer to Figure 2 、 Figure 3a 、 Figure 3b and Figure 4 , Figure 2 This is a schematic diagram of the overall structure of a display device provided in the first embodiment of the present application. Figure 3a This is a schematic diagram of the cross-sectional structure of a display device provided in the first embodiment of the present application. Figure 1 , Figure 3b 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 This is a region division diagram of a display panel provided in the first embodiment of the present application.

[0047] The display device 100 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 from the backlight module 1 to pass through and form a display image to display the image information required by the user.

[0048] The backlight module 1 includes a middle frame 40 and at least one near-infrared light-emitting element 10. The middle frame 40 is used to support the display panel 2. The middle frame 40 includes a first supporting surface 41 and a mounting surface 43. The first supporting surface 41 abuts the display panel 2. The mounting surface 43 is an inclined surface and faces the display area 201 of the display panel 2.

[0049] At least one near-infrared light emitting element 10 is disposed on the mounting surface 43 , and the near-infrared light emitting element 10 is configured to emit near-infrared light toward the display panel 2 , wherein the near-infrared light can heat the user's skin.

[0050] The display panel 2 has a display area 201 and a non-display area 202, wherein the non-display area 202 is arranged around the display area 201. Specifically, the display area 201 can be used to display images, and the non-display area 202 is used to arrange components required by the display panel 2 and signal lines.

[0051] The backlight module 1 further includes a back plate 60 . The middle frame 40 is disposed inside the back plate 60 . The display panel 2 is disposed on a side of the middle frame 40 away from the display panel 2 . The middle frame 40 can be used to support the display panel 2 .

[0052] The middle frame 40 can be prepared as a separate product, which is easy to prepare and facilitates mass production.

[0053] The near-infrared 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.

[0054] 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. 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 near-infrared light-emitting element 10, it is subject to the power limitation of the near-infrared light-emitting element 10. The wavelength of the near-infrared light emitted by the near-infrared light-emitting element 10 is generally less than 1800nm.

[0055] Specifically, electromagnetic waves in the 900nm-1800nm band can penetrate the human epidermis and directly heat the water molecules beneath it. This thermal effect energizes damaged cells, promotes deep collagen repair and regeneration, accelerates blood circulation, and removes pigment deposits and skin metabolic waste. Meanwhile, the safe temperature that the human skin surface can withstand is generally 40°C-43°C, exceeding which poses a risk of burns. However, the infrared light can rapidly heat the user's skin to 43°C within 20 seconds and maintain a constant temperature over a large area, thereby improving the user's skin condition.

[0056] The near-infrared light emitting element 10 is disposed on the mounting surface 43 of the middle frame 40. The mounting surface 43 is an inclined surface and faces the display area 201 of the display panel 2. In other words, the light emitting surface of the near-infrared light emitting element 10 faces the display panel 2, so that the near-infrared light emitted by the near-infrared light emitting element 10 can be directed toward the display panel 2 and then emitted from the display panel 2 to the user's skin, thereby reducing the loss of the near-infrared light, more efficiently utilizing the near-infrared light, and allowing the near-infrared light to act on the user's skin.

[0057] In the display device 100 provided in the present application, the near-infrared light-emitting element 10 is provided on the mounting surface 43, and the mounting surface 43 is an inclined surface and faces the display area 201 of the display panel 2. The near-infrared light-emitting element 10 is used to emit the near-infrared light toward the display area 201, and the near-infrared light can heat the user's skin. At present, people are becoming more and more aware of skin health, 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 near-infrared 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.

[0058] Furthermore, the near-infrared light-emitting component 10 is disposed on the mounting surface 43 of the middle frame 40 . The near-infrared light-emitting component 10 and the middle frame 40 can be prepared as a single product, which is beneficial to improving the preparation speed of the display device 100 so that the display device 100 can be mass-produced.

[0059] Please refer to Figure 3a and Figure 3b The first bearing surface 41 and the mounting surface 43 are arranged at an obtuse angle, and the angle α between the first bearing surface 41 and the mounting surface 43 satisfies: 120°≤α≤150°.

[0060] Specifically, if the angle α between the first bearing surface 41 and the mounting surface 43 is less than 120°, part of the near-infrared light emitted by the near-infrared light-emitting element 10 will irradiate the inner side surface of the display device 100, and the near-infrared light irradiating the inner side surface of the display device 100 cannot pass through the display panel 2 and heat the user's skin, thereby reducing the utilization rate of the near-infrared light; if the angle α between the first bearing surface 41 and the mounting surface 43 is greater than 150°, part of the near-infrared light emitted by the near-infrared light-emitting element 10 will irradiate the non-display area 202 of the display panel 2, and the near-infrared light irradiating the non-display area 202 cannot pass through the display panel 2 and heat the user's skin, thereby reducing the utilization rate of the near-infrared light.

[0061] Therefore, when the angle α between the first bearing surface 41 and the mounting surface 43 satisfies 120°≤α≤150°, more near-infrared light can be irradiated to the display area 201 of the display panel 2 and act on the user's skin, further improving the utilization rate of the near-infrared light.

[0062] For example, the angle α between the first bearing surface 41 and the mounting surface 43 can be 120°, or 122°, or 125°, or 130°, or 133°, or 137°, or 141°, or 144°, or 146°, or 148°, or 150°, or other degrees within the range of 120°≤α≤150°.

[0063] Please refer again Figure 3a and Figure 3b At least one mounting groove 44 is provided on the mounting surface 43 , and the mounting groove 44 is used for mounting the near-infrared light-emitting element 10 .

[0064] The near-infrared light emitting element 10 includes a plurality of near-infrared light emitting units 11 , and the plurality of near-infrared light emitting units 11 are configured to emit the near-infrared light.

[0065] The mounting groove 44 includes a connecting mounting groove 441 and a speaker groove 442. The mounting groove 441 is used to mount the near-infrared light-emitting unit 11. The inner diameter of the speaker groove 442, which is closer to the display panel 2 than the mounting groove 441, is smaller at the end of the speaker groove 442 closer to the mounting groove 441 than at the end of the speaker groove 442 farther from the mounting groove 441. In other words, the inner diameter of the speaker groove 442 increases continuously in the direction in which the mounting groove 441 and the speaker groove 442 are arranged.

[0066] The mounting groove 44 includes the mounting groove 441 . The near-infrared light emitting unit 11 is a lamp bead capable of emitting the near-infrared light. The mounting groove 441 is used to mount the lamp bead.

[0067] The mounting groove 44 includes a connected mounting groove 441 and a speaker groove 442. The opening of the speaker groove 442 is in a speaker shape to expand the emission range of the near-infrared light, so that the near-infrared light emitted by the near-infrared light-emitting unit 11 can more comprehensively cover the display panel 2, thereby improving the utilization rate of the near-infrared light.

[0068] In other embodiments, the groove surfaces of the mounting groove 441 and the speaker groove 442 may also be provided with additional reflective materials so that the near-infrared light incident on the groove surfaces of the mounting groove 441 and the speaker groove 442 can eventually be emitted onto the display panel 2, thereby further improving the utilization rate of the near-infrared light.

[0069] Please refer to Figure 3a and Figure 5 , Figure 5 This is a schematic diagram of the cross-sectional structure of a display device provided in the first embodiment of the present application. Figure 2In a plane perpendicular to the arrangement direction of the plurality of near-infrared light-emitting units 11 , an angle β between the inner wall of the horn groove 442 and the central axis of the horn groove 442 satisfies: 40°≤β≤80°.

[0070] In a plane perpendicular to the arrangement direction of the multiple near-infrared light-emitting units 11, the angle β between the inner wall of the speaker groove 442 and the central axis of the speaker groove 442 is less than 40°, then the emission range of the diffused near-infrared light is small, and no obvious diffusion effect is achieved; in a plane perpendicular to the arrangement direction of the multiple near-infrared light-emitting units 11, the angle β between the inner wall of the speaker groove 442 and the central axis of the speaker groove 442 is greater than 80°, then the near-infrared light may be diffused to the side of the display device 100 for emission, and the near-infrared light emitted from the side cannot pass through the display panel 2 and heat the user's skin, thereby reducing the utilization rate of the near-infrared light.

[0071] Therefore, in a plane perpendicular to the arrangement direction of the multiple near-infrared light-emitting units 11, when the angle β between the inner wall of the speaker groove 442 and the central axis of the speaker groove 442 satisfies 40°≤β≤80°, more near-infrared light can be irradiated to the display area 201 of the display panel 2 and act on the user's skin, further improving the utilization rate of the near-infrared light.

[0072] For example, the angle α between the first bearing surface 41 and the mounting surface 43 can be 40°, or 45°, or 50°, or 51°, or 53°, or 60°, or 62°, or 64°, or 70°, or 77°, or 79°, or 80°, or other degrees within the range of 40°≤β≤80°.

[0073] Please refer to Figure 6 , Figure 6 4 is a schematic diagram of a cross-sectional structure of a display device provided in Embodiment 2 of the present application. In another embodiment, the inner wall of the speaker groove 442 is in the shape of a concave sphere.

[0074] The inner wall of the speaker groove 442 is in a concave spherical shape, which can collect the near-infrared light and emit it toward the display panel 2, reducing the amount of the near-infrared light emitted to the side of the display device 100, thereby improving the utilization rate of the near-infrared light.

[0075] Please refer to Figure 7 , Figure 7This is a schematic diagram of a partial top view of the structure of a display device provided in Embodiment 1 of the present application. In this embodiment, the near-infrared light-emitting elements 10 are disposed on all four sides of the middle frame 40, and the near-infrared light-emitting units 11 are evenly distributed, ensuring sufficient near-infrared light intensity, thereby improving the heating efficiency and cosmetic effect of the display device 100 on the user's skin.

[0076] Please refer again Figure 3a and Figure 8 , Figure 8 FIG2 is a cross-sectional schematic diagram of a display device including a visible light emitting element provided in the first embodiment of the present application. The backlight module 1 further includes a visible light emitting element 80 and an optical film layer 50. The visible light emitting element 80 and the middle frame 40 are both disposed on the back plate 60. The optical film layer 50 is disposed between the visible light emitting element and the display panel 2. The visible light emitting element 80 is configured to emit visible light to the optical film layer 50. The visible light passes through the optical film layer 50 to the display panel 2 to form a display image.

[0077] The middle frame 40 further includes a second bearing surface 42 for bearing the optical film layer 50 . The first bearing surface 41 , the mounting surface 43 , and the second bearing surface 42 are bent and connected in sequence.

[0078] The visible 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.

[0079] 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 this application is not limited to this.

[0080] The optical film layer 50 is used to homogenize the visible light and transmit the visible light to the side facing the display panel 2 .

[0081] The optical film layer 50 includes devices such as a diffuser, a brightness enhancement sheet, and a light uniformity sheet that can change the direction of the visible light.

[0082] The middle frame 40 includes a second supporting surface 42 for supporting the optical film layer 50. The first supporting surface 41, the mounting surface 43, and the second supporting surface 42 are sequentially bent and connected. The near-infrared light emitted by the near-infrared light-emitting element 10 located on the mounting surface 43 is directly emitted to the display panel 2 without passing through the optical film layer 50, thereby reducing the loss of the near-infrared light.

[0083] In this embodiment, the installation order of the display device 100 is: setting the near-infrared light-emitting component 10 on the installation surface 43 of the middle frame 40; placing the back panel 60 flat on the operating platform, and attaching the adhesive strip for sticking the middle frame 40 and the visible light-emitting component 80; installing the middle frame 40 and the visible light-emitting component 80 on the adhesive strip; and finally installing the optical film layer 50 and the display panel 2.

[0084] Please refer to Figure 3a and Figure 9 , Figure 9 Schematic diagram of the connection between the near-infrared light emitting element, the distance detector and the controller provided in Embodiment 1 of the present application. The display device 100 includes a controller 30 , which is electrically connected to the near-infrared light emitting element 10 in the display device 100 and controls the near-infrared light emitting element 10 .

[0085] The controller 30 is electrically connected to the near-infrared light emitting element 10 in the display device 100 . The controller 30 can be used to control the near-infrared light emitting element 10 to emit the near-infrared light or not.

[0086] Optionally, the present application does not limit the location of the controller 30 , and the controller 30 may be disposed in the backlight module 1 or the display panel 2 or other devices.

[0087] The display device 100 further includes at least one distance detector 20 , which is used to detect the actual distance between the user and the display device 100 .

[0088] The controller 30 is electrically connected to the distance detector 20 and the near-infrared light emitting element 10 . When the controller 30 determines that the actual distance is less than a maximum value of a preset range, the controller 30 controls the near-infrared light emitting element 10 to emit near-infrared light.

[0089] 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.

[0090] The controller 30 is electrically connected to the distance detector 20 and the near-infrared light-emitting element 10, and the controller 30 can control the working condition of the near-infrared light-emitting element 10 according to the actual distance between the user and the display device 100. Specifically, the controller 30 controls whether the near-infrared light-emitting element 10 works by judging whether the actual distance is within the preset range. For example, when the controller 30 judges that the actual distance is within the preset range, the user is within the effective irradiation range of the near-infrared light-emitting element 10, and the controller 30 controls the near-infrared light-emitting element 10 to emit the near-infrared light. When the controller 30 judges that the actual distance is outside the preset range, the near-infrared light emitted by the near-infrared light-emitting element 10 cannot act on the user, and the controller 30 controls the near-infrared light-emitting element 10 to stop emitting the near-infrared light.

[0091] Furthermore, 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 near-infrared 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 near-infrared light-emitting element 10 to stop emitting the near-infrared light according to the second signal.

[0092] Optionally, the present application does not limit the position of the distance detector 20 , and the distance detector 20 may be disposed in the backlight module 1 or the display panel 2 or other devices.

[0093] In the display device 100 provided in the present application, the backlight module 1 includes the near-infrared 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 a preset range, the controller 30 controls the near-infrared light-emitting element 10 to emit the near-infrared light, which 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 near-infrared light-emitting element 10 operates and emits light, so that the near-infrared light emitted by the near-infrared light-emitting element 10 can act on the user's skin to the greatest extent, which can effectively reduce the energy loss of the display device 100.

[0094] The present application does not limit the preset range, and the preset range can be adjusted according to the power of the near-infrared light emitting element 10. In this embodiment, the preset range is 0 cm-100 cm. 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 this application.

[0095] Please refer to Figure 10 , Figure 10 Schematic diagram of the effective working area of a display device provided in Embodiment 1 of the present application. In one embodiment, the middle frame 40 includes a first frame 401 and a second frame 402 arranged opposite each other. The at least one near-infrared light-emitting element 10 includes a first light-emitting element 101 and a second light-emitting element 102. The first light-emitting element 101 is disposed on the first frame 401, and the second light-emitting element 102 is disposed on the second frame 402.

[0096] The near-infrared light emitted by the first light-emitting element 101 and the near-infrared light emitted by the second light-emitting element 102 intersect to form an effective working area A. When the controller 30 determines that the user is located in the effective working area A, the controller 30 controls the near-infrared light-emitting element 10 to emit the near-infrared light.

[0097] In other words, the effective working area A is the effective beauty area mentioned above. Along the direction perpendicular to the display panel 2, the length of the effective beauty area is the preset range mentioned above.

[0098] In other embodiments, if the near-infrared light-emitting element 10 is also provided on other sides of the middle frame 40 , the effective working area A will also change accordingly, and this application does not impose any limitation on this.

[0099] 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 stacked together, characterized in that: The backlight module includes: a middle frame, configured to support the display panel, the middle frame comprising a first supporting surface and a mounting surface, wherein the first supporting surface abuts the display panel, the mounting surface is an inclined surface, and the mounting surface faces the display area of the display panel, wherein the first supporting surface and the mounting surface are arranged at an obtuse angle, and an angle α between the first supporting surface and the mounting surface satisfies the following conditions: 120°≤α≤150°; At least one near-infrared light emitting element is disposed on the mounting surface, and is used for emitting near-infrared light toward the display panel, wherein the near-infrared light can heat the user's skin.

2. The display device according to claim 1, wherein At least one mounting groove is provided on the mounting surface, and the mounting groove is used for mounting the near-infrared light-emitting element.

3. The display device according to claim 2, wherein: The near-infrared light emitting element includes a plurality of near-infrared light emitting units, and the plurality of near-infrared light emitting units are used to emit the near-infrared light; The mounting groove includes a connected mounting groove and a speaker groove, and the mounting groove is used to install the near-infrared light-emitting unit; the speaker groove is closer to the display panel than the mounting groove, and the inner diameter of the speaker groove close to the mounting groove is smaller than the inner diameter of the speaker groove away from the mounting groove.

4. The display device according to claim 3, wherein In a plane perpendicular to the arrangement direction of the plurality of near-infrared light-emitting units, an angle β between an inner wall of the horn groove and a central axis of the horn groove satisfies: 40°≤β≤80°.

5. The display device according to claim 3, wherein The inner wall of the horn groove is in the shape of a concave sphere.

6. The display device according to claim 1, wherein The backlight module further includes a backplane, a visible light emitting element, and an optical film layer. The visible light emitting element and the middle frame are both arranged on the backplane. The optical film layer is arranged between the visible light emitting element and the display panel. The visible light emitting element is used to emit visible light to the optical film layer. The visible light passes through the optical film layer to the display panel to form a display image. The middle frame further includes a second bearing surface for bearing the optical film layer, and the first bearing surface, the mounting surface, and the second bearing surface are bent and connected in sequence.

7. The display device according to claim 1, wherein 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; The display device further includes a controller electrically connected to the distance detector and the near-infrared light emitting element. When the controller determines that the actual distance is less than a maximum value of a preset range, the controller controls the near-infrared light emitting element to emit the near-infrared light.

8. The display device according to claim 7, wherein: The middle frame includes a first frame and a second frame arranged opposite to each other, and the at least one near-infrared light-emitting element includes a first light-emitting element and a second light-emitting element, the first light-emitting element is arranged on the first frame, and the second light-emitting element is arranged on the second frame; The near-infrared light emitted by the first light-emitting element and the near-infrared light emitted by the second light-emitting element intersect to form an effective working area. When the controller determines that the user is located in the effective working area, the controller controls the near-infrared light-emitting element to emit the near-infrared light.

9. An electronic device, characterized in that: The invention comprises a power supply device and the display device according to any one of claims 1 to 8.

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