CN116339004A

CN116339004A - Display and display device

Info

Publication number: CN116339004A
Application number: CN202310317684.7A
Authority: CN
Inventors: 罗菲; 袁海江
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-06-27

Abstract

The application provides a display and a display device. The display includes a display screen and a backlight assembly which are stacked, the backlight assembly including: the backlight plate comprises a backlight body and a plurality of protruding parts, wherein the protruding parts are annularly arranged on the backlight body and protrude towards the same side of the backlight body to form an accommodating space; the lamp panel is accommodated in the accommodating space and is carried on the backlight body and used for emitting visible light; the display screen has a plurality of display areas, and the display further includes: the heating assembly is accommodated in the accommodating space and comprises a plurality of heating pieces, each heating piece corresponds to one display area, and different heating pieces correspond to different display areas, and the heating pieces are used for emitting infrared rays to the display areas so as to heat the display screen located in the display areas. The display that this application provided can heat the display screen through heating element so that the display screen can normally work under the abominable environment of low temperature, and heating efficiency is high and with low costs.

Description

Display and display device

Technical Field

The application relates to the technical field of display equipment, in particular to a display and a display device.

Background

At present, along with the improvement of living standard, various liquid crystal electronic products are becoming more and more popular in various fields of office work, scientific research, medical treatment, vehicle-mounted, aerospace and the like.

However, in the case of low ambient temperature (e.g., minus several tens of degrees), the operation of the liquid crystal is severely affected (typically, the operation temperature is 0 to 50 ℃), which results in that the liquid crystal electronic product cannot operate normally, for example, cannot be started up, or the display screen is poor, or the display is abnormal.

Disclosure of Invention

In a first aspect, the present application provides a display including a display screen and a backlight assembly disposed in a stack, the backlight assembly including:

the backlight plate comprises a backlight body and a plurality of protruding parts, wherein the protruding parts are annularly arranged on the backlight body and protrude towards the same side of the backlight body to form an accommodating space; a kind of electronic device with high-pressure air-conditioning system

The lamp panel is accommodated in the accommodating space and is carried on the backlight body and used for emitting visible light;

the display screen has a plurality of display areas, the display further comprising:

the heating assembly is accommodated in the accommodating space and comprises a plurality of heating pieces, each heating piece corresponds to one display area, different heating pieces correspond to different display areas, and the heating pieces are used for emitting infrared rays to the display areas so as to heat the part of the display screen located in the display areas.

Wherein, the heating element bear in the bellying towards the interior surface of accommodation space, the bellying towards the interior surface of accommodation space with the body in a poor light towards the interior surface of display screen is facing away from the angle α1 that accommodation space one side formed satisfies: alpha 1 is more than or equal to 30 degrees and less than or equal to 60 degrees.

The protruding portion is provided with a groove, the groove is concavely arranged on the inner surface of the protruding portion facing the accommodating space, and the groove is used for accommodating the heating element.

Wherein the heating element comprises:

the bearing part is provided with a plurality of stepped grooves, and the stepped grooves are concavely arranged on the surface of the bearing part facing the accommodating space; a kind of electronic device with high-pressure air-conditioning system

The plurality of heating parts are arranged on the bearing part at intervals, each heating part is correspondingly contained in one step groove, and the plurality of heating parts are used for emitting infrared rays to the display screen.

Wherein, the ladder groove includes:

a first groove for accommodating the heating portion; a kind of electronic device with high-pressure air-conditioning system

The second groove is communicated with the first groove, and compared with the first groove, the second groove is close to the display screen, and the inner diameter of the second groove continuously becomes larger in the direction of the first groove pointing to the second groove.

Wherein, for each of the heating members, in a plane perpendicular to an arrangement direction of the plurality of heating portions, an angle α2 formed by an inner wall of the second groove and a direction in which the first groove is directed toward the second groove is defined by the bearing portion, satisfying: alpha 2 is more than or equal to 50 degrees and less than or equal to 75 degrees.

Wherein the heating assembly further comprises:

the diffusion pieces are arranged corresponding to one heating piece, are arranged on the bearing part and cover the openings of the plurality of ladder grooves.

The application provides a display, the display includes display screen, backlight unit and heating element, every heating element in the heating element corresponds a display area setting of display screen, and different heating element corresponds different display area setting, the heating element be used for the outgoing infrared ray extremely the display area, with right the display screen is located the part of display area heats, so that liquid crystal temperature in the display area rises to the temperature that can normally work, thereby makes the display screen can normally open under low temperature abominable environment, because a plurality of heating elements can independently heat a plurality of display areas respectively, is favorable to improving heating efficiency. In addition, the wavelength of the infrared rays emitted by the heating element is matched with the absorption spectrum corresponding to the liquid crystal in the display screen, so that the heating efficiency of the heating element on the display screen is high. In addition, the infrared rays are emitted from the heating element to heat the display screen, so that the internal structure of the display is not damaged, and the display performance of the display screen is not affected. In addition, the heating component is accommodated in the accommodating space of the backlight plate, so that the display is heated in a self-heating mode, external environment heating is not needed, and the heating cost is low. Therefore, the display that this application provided can be through heating element to the display screen heating so that the display screen can be in the abominable environment normal work of low temperature, heating efficiency is high and with low costs.

In a second aspect, the present application further provides a display device, the display device including a processor and the display according to the first aspect, the processor being electrically connected to the heating element in the display and controlling the heating element.

Wherein, the display device further includes:

the temperature sensor is used for detecting the current temperature of the display screen;

the processor is electrically connected with the temperature sensor and is used for receiving the current temperature;

when the processor judges that the current temperature is smaller than the minimum value of the preset temperature range, the processor is used for controlling the heating assembly to emit infrared rays so as to heat the display screen;

when the heating component is emitting infrared rays and the processor judges that the current temperature is greater than or equal to the minimum value of the preset temperature range, the processor is further used for controlling the power of the heating component for emitting the infrared rays to enable the current temperature to be located in the preset temperature range in a preset time, and is further used for controlling the heating component to stop emitting the infrared rays in the preset time.

Wherein the temperature sensor is further configured to detect an external ambient temperature of the display screen, and the processor is further configured to receive the external ambient temperature;

and when the current temperature is smaller than the minimum value of the preset temperature range, the processor is used for adjusting the power of the heating component for emitting infrared rays according to the external environment temperature, wherein the lower the external environment temperature is, the larger the power of the heating component for emitting infrared rays is.

The display device that this application provided can pass through the processor control heating element heats the display screen so that display device still can normally show under the abominable environment of low temperature, and heating efficiency is high and with low costs.

Drawings

In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a display according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a display area of the display screen of FIG. 1;

FIG. 3 is a schematic diagram of a display area corresponding to the heating element in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line A-A in FIG. 1;

FIG. 5 is an enlarged partial schematic view of the portion I in FIG. 4;

FIG. 6 is a schematic view of an optical path of infrared rays emitted from the heating element in FIG. 5;

FIG. 7 is a schematic view of a heating element disposed on a boss;

FIG. 8 is an enlarged partial schematic view at II in FIG. 7;

FIG. 9 is a schematic view of a diffuser corresponding to a heater;

fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

FIG. 11 is a block diagram of electrical connections of the display device of FIG. 10;

FIG. 12 is a block diagram of the electrical connection between the processor and the temperature sensor of FIG. 10.

Reference numerals: a display device 1; a display 10; a display screen 100; a backlight assembly 200; a backlight plate 210; a backlight body 211; a boss 212; a groove 2121; an accommodation space 213; a lamp panel 220; a display area 300; a heating assembly 400; a heating member 410; a carrying portion 411; stepped groove 4111; first groove 4112; second groove 4113; a heating section 412; a diffuser 420; a processor 20; a temperature sensor 30.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The present application provides a display 10. Referring to fig. 1, fig. 2 and fig. 3 together, fig. 1 is a schematic structural diagram of a display according to an embodiment of the present application; FIG. 2 is a schematic diagram of a display area of the display screen of FIG. 1; fig. 3 is a schematic structural diagram of a display area corresponding to the heating element in fig. 1. In this embodiment, the display 10 includes a display panel 100 and a backlight assembly 200 stacked together. The backlight assembly 200 includes a backlight plate 210 and a lamp plate 220. The backlight 210 includes a backlight body 211 and a plurality of protrusions 212. The plurality of protruding portions 212 are disposed around the backlight body 211 and protrude toward one side of the backlight body 211 to form an accommodating space 213. The lamp panel 220 is accommodated in the accommodating space 213 and is carried on the backlight body 211 for emitting visible light. The display screen 100 has a plurality of display areas 300. The display 10 further includes a heating unit 400, and the heating unit 400 is accommodated in the accommodating space 213. The heating assembly 400 includes a plurality of heating elements 410. Each heating element 410 is disposed corresponding to one of the display areas 300, and different heating elements 410 are disposed corresponding to different ones of the display areas 300. The heating element 410 is configured to emit infrared rays to the display area 300, so as to heat a portion of the display screen 100 located in the display area 300.

In this embodiment, the display 10 is a liquid crystal display 10, and is applied to various display devices, such as a mobile phone, a tablet computer, a notebook computer, a palm computer, a personal computer (Personal Computer, PC), a personal digital assistant (Personal Digital Assistant, PDA), and the like.

In this embodiment, the heating assembly 400 heats the display 100 by emitting infrared rays, so that the temperature of the liquid crystal in the display 100 rises to a temperature at which the display can normally operate, and the display 10 can be turned on in a low-temperature severe environment, and the internal structure of the display 10 is not damaged and the performance of the display 10 is not affected because the heating assembly 400 heats by using infrared rays. In addition, the heating assembly 400 is disposed in the accommodating space 213, so that the display 10 is spontaneously heated, and no external environment is required to heat, so that the heating efficiency of the heating assembly 400 on the display screen 100 is high.

Wherein, the infrared ray is also called infrared radiation, and is electromagnetic wave with the infrared wave band between the visible light and the microwave and the wavelength range of 0.76-1000 microns. The infrared ray isInvisible light with lower frequency than red light has obvious thermal effect and can heat surrounding objects. Since the strong absorption band of the liquid crystal in the display 100 is a radiation wave number of 2700cm ^-1 To 3100cm ^-1 (i.e., wavelengths 2325 nm-2026 nm) and the wavelength range of the infrared rays can cover the strong absorption band of the liquid crystal in the display screen 100, thereby making the infrared rays suitable for heating the display screen 100. The liquid crystal has a corresponding absorption spectrum, namely, the liquid crystal can be heated under the condition of wave radiation with a specific wavelength, and the strong absorption band is a wavelength range with higher efficiency in which the liquid crystal can be heated. Therefore, the heating assembly 400 heats the display screen 100 by infrared rays, and has the advantages of good heating effect, low cost, great saving of manpower and material resources and high realizability.

Specifically, the display screen 100 has a plurality of display areas 300, where the display areas 300 are virtually divided areas, so that the plurality of heating elements 410 respectively heat the respective display areas 300, and it can be understood that the display areas 300 are not physically divided, i.e. the display screen 100 is in an integral structure. Through dividing the display screen 100 into a plurality of display areas 300, each display area 300 can be independently heated, so that the heating of each display area 300 can be independently and accurately controlled, and unnecessary heating of an area which is not required to be heated can be avoided, thereby improving the heating efficiency and reducing the heating cost.

In this embodiment, the plurality of display areas 300 are disposed in a connected manner, and the two display areas 300 are connected without overlapping areas, which is beneficial for the heating element 410 to independently heat the display areas 300. The partitions of the display screen 100 in fig. 2 are only schematically divided, and it is understood that each display area 300 is adjacent to one heating element 410, and different display areas 300 are adjacent to different heating elements 410. The heating element 410 may be referred to as an infrared Light Emitting Diode (LED) Light bar.

In other embodiments, there is an overlapping area between the different display areas 300, where each display area 300 corresponds to an area covered by the infrared rays emitted from the heating elements 410 on the display panel, and since it is difficult to avoid no overlapping of the infrared rays emitted from the plurality of heating elements 410 on the display screen 100, there is an overlapping area between the different display areas 300, which is beneficial to heating the display panel with each heating element 410 to a greater extent.

In summary, the present disclosure provides a display 10, the display 10 includes a display screen 100, a backlight assembly 200 and a heating assembly 400, each heating element 410 in the heating assembly 400 is disposed corresponding to one display area 300 of the display screen 100, and different heating elements 410 are disposed corresponding to different display areas 300, and the heating elements 410 are configured to emit infrared rays to the display areas 300, so as to heat a portion of the display screen 100 located in the display areas 300, so that the temperature of liquid crystal in the display areas 300 rises to a temperature capable of operating normally, thereby enabling the display screen 100 to be normally opened in a severe environment with low temperature. In addition, the wavelength of the infrared rays emitted from the heating element 410 matches the absorption spectrum corresponding to the liquid crystal in the display screen 100, so that the heating efficiency of the heating element 410 on the display screen 100 is high. In addition, since the heating element 410 is used to heat the display 100 in such a way that infrared rays are emitted, the internal structure of the display 10 is not damaged, and the display performance of the display 100 is not affected. In addition, the heating assembly 400 is accommodated in the accommodating space 213 of the backlight 210, so that the display 10 is heated in a self-heating manner, and no external environment is needed for heating, so that the heating cost is low. Therefore, the display 10 provided by the application can heat the display screen 100 through the heating component 400 so that the display screen 100 can work normally in a low-temperature severe environment, and the heating efficiency is high and the cost is low.

Referring to fig. 4, 5 and 6, fig. 4 is a schematic cross-sectional view along line A-A in fig. 1; FIG. 5 is an enlarged partial schematic view of the portion I in FIG. 4; fig. 6 is a schematic view of an optical path of infrared rays emitted from the heating element in fig. 5. In the present embodiment, the heating member 410 is supported on an inner surface of the boss 212 facing the accommodating space 213. An angle α1 formed by an inner surface of the convex portion 212 facing the accommodating space 213 and an inner surface of the backlight body 211 facing the display screen 100 on a side facing away from the accommodating space 213 satisfies: alpha 1 is more than or equal to 30 degrees and less than or equal to 60 degrees.

In this embodiment, the heating element 410 is supported on the inner surface of the protrusion 212 facing the accommodating space 213, so that the heating element 410 is disposed obliquely compared with the display screen 100, and the heating element 410 can emit infrared rays to the display screen 100 through oblique directions, so that compared with the case of emitting the same number of infrared LEDs directly facing the display screen 100, the infrared rays emitted by the heating element 410 can cover a larger area, so that the coverage of the infrared rays emitted by the heating element 410 on the display screen 100 is wide, and the heating effect of the heating element 410 is improved. In addition, for the display screen 100 with the same size, the infrared coverage of the heating element 410 emitted to the display screen 100 is wide, so that the number of infrared LEDs in the heating element 410 is reduced, and the setting cost of the heating element 410 is reduced. The heating elements 410 are supported on the inner surface of the protruding portion 212 facing the accommodating space 213, so that the infrared rays emitted by the plurality of heating elements 410 are emitted to the display screen 100 obliquely upwards from the periphery to heat the display screen 100, and the coverage of the infrared rays on the display screen 100 is enlarged, so that the heating effect on the display screen 100 is improved.

Specifically, an angle α1 formed by an inner surface of the convex portion 212 facing the accommodating space 213 and an inner surface of the backlight body 211 facing the display screen 100 on a side facing away from the accommodating space 213 satisfies: 30 DEG.ltoreq.α1.ltoreq.60°, that is, the angle α1 between the light-emitting surface of the heating element 410 and the display screen 100 satisfies: 30 DEG-alpha 1 DEG is less than or equal to 60 DEG, which is beneficial to improving the coverage of infrared rays emitted by the heating element 410 on the display screen 100. If the angle α1 formed by the inner surface of the protruding portion 212 facing the accommodating space 213 and the inner surface of the backlight body 211 facing the display screen 100 on the side facing away from the accommodating space 213 is less than 30 °, the heating element 410 is too far away from the display screen 100, so that the transmission distance of the infrared rays emitted from the heating element 410 is short, and the infrared rays are transmitted to the display screen 100 without sufficient divergence, thereby reducing the coverage of the infrared rays emitted from the heating element 410 on the display screen 100. If the angle α1 formed by the inner surface of the protruding portion 212 facing the accommodating space 213 and the inner surface of the backlight body 211 facing the display screen 100 on the side facing away from the accommodating space 213 is greater than 60 °, the heating element 410 is inclined too much compared with the display screen 100, so that the infrared rays emitted from the heating element 410 deviate too much from the display screen 100, and there are too much infrared rays scattered to the lamp panel 220, so that the infrared rays incident into the display screen 100 are too little, and the heating effect of the heating element 410 on the display screen 100 is reduced.

Referring again to fig. 5, in the present embodiment, the protruding portion 212 has a groove 2121. The groove 2121 is concavely formed on an inner surface of the convex portion 212 facing the accommodating space 213, and the groove 2121 is configured to accommodate the heating element 410.

In this embodiment, the heating element 410 is disposed in the groove 2121, which is advantageous for mounting the heating element 410, and for limiting the heating element 410 after the heating element 410 is mounted in the groove 2121. In addition, by providing the groove 2121, the distance between the heating element 410 and the display screen 100 is increased, so that the transmission distance from the infrared rays emitted by the heating element 410 to the display screen 100 is increased, and the coverage of the infrared rays on the display screen 100 is further improved.

Referring to fig. 5, 7 and 8, fig. 7 is a schematic structural diagram of the heating element disposed on the protruding portion; fig. 8 is a partially enlarged schematic view of fig. 7 at II. In this embodiment, the heating element 410 includes a carrying portion 411 and a plurality of heating portions 412. The carrying portion 411 has a plurality of step grooves 4111, and the plurality of step grooves 4111 are concavely formed on a surface of the carrying portion 411 facing the accommodating space 213. The plurality of heating portions 412 are disposed at intervals on the carrying portion 411, and each heating portion 412 is correspondingly received in one of the stepped grooves 4111. The heating parts 412 are used for emitting infrared rays to the display 100.

In this embodiment, the heating portion 412 is also referred to as an infrared LED lamp bead, and the heating portion 412 is disposed in the step groove 4111, so that, on one hand, the carrying portion 411 accommodates the heating portion 412 to form protection for the heating portion 412, and on the other hand, the distance between the heating portion 412 and the display screen 100 is increased, so that the transmission distance of the infrared rays emitted from the heating portion 412 to the display screen 100 is increased, and further, the coverage of the infrared rays on the display screen 100 is improved.

Referring to fig. 5 again, in the present embodiment, the step groove 4111 includes a first groove 4112 and a second groove 4113. The first groove 4112 is configured to receive the heating portion 412. The second groove 4113 communicates with the first groove 4112, and the second groove 4113 is closer to the display screen 100 than the first groove 4112. The inner diameter of the second groove 4113 continuously becomes larger in the direction in which the first groove 4112 points to the second groove 4113.

In this embodiment, in the direction in which the first groove 4112 points to the second groove 4113, the inner diameter of the second groove 4113 continuously increases, that is, the second groove 4113 has a bell mouth structure, so that the infrared rays emitted from the heating portion 412 can be guided, thereby dispersing the infrared rays, expanding the coverage of the infrared rays on the display screen 100, so as to ensure that the infrared rays can cover the entire display screen 100, further ensuring that the heating of the display screen 100 is more uniform and comprehensive, and further ensuring that each liquid crystal molecule inside the display screen 100 can deflect normally after the display screen 100 is heated by the infrared rays.

In addition, the inner wall of the carrying portion 411 defining the stepped groove 4111 can reflect the infrared rays emitted from the heating portion 412, so that the whole surface of the display screen 100 is further heated more uniformly, and it is ensured that each liquid crystal molecule inside the display screen 100 after being heated by the infrared rays can deflect normally.

Further, the inner wall of the carrying portion 411 defining the step groove 4111 is provided with a reflective structure, and the infrared rays emitted from the heating portion 412 are further reflected by the reflective structure on the inner wall of the step groove 4111, so that the coverage surface of the infrared rays projected on the display screen after being reflected by the step groove 4111 is further improved, further, the whole surface of the display screen 100 is heated more uniformly, and it is ensured that each liquid crystal molecule inside the display screen 100 after being heated by the infrared rays can deflect normally. The reflection structure may be, but not limited to, a reflection film layer, or a reflection particle, or a concave-convex structure, so long as it can reflect the infrared rays emitted from the heating portion 412 and increase the coverage of the infrared rays emitted from the stepped groove 4111 on the display screen 100.

Further, referring to fig. 5 and 6 again, in the present embodiment, for each heating element 410, in a plane perpendicular to the arrangement direction of the plurality of heating portions 412, an angle α2 formed by the inner wall of the bearing portion 411 defining the second groove 4113 and the direction in which the first groove 4112 points to the second groove 4113 satisfies: 50 DEG.ltoreq.a2.ltoreq.75 DEG, so that the second grooves 4113 better guide the infrared rays emitted from the heating portion 412 to the display panel after being diffused.

For example, the angle α2 formed by the inner wall of the bearing 411 defining the second slot 4113 and the direction in which the first slot 4112 points to the second slot 4113 may be, but not limited to, 50 °, or 55 °, or 60 °, or 65 °, or 70 °, or 75 °, or any other value between 50 ° and 75 °.

If the bearing portion 411 defines that an angle α2 formed by the inner wall of the second slot 4113 and the direction in which the first slot 4112 points to the second slot 4113 is smaller than 50 °, the infrared rays emitted through the second slot 4113 are too concentrated, so that the coverage area of the infrared rays on the display screen 100 is too small, which is not beneficial to heating the display screen 100. If the angle α2 formed by the inner wall of the second slot 4113 and the direction in which the first slot 4112 points to the second slot 4113 defined by the bearing portion 411 is greater than 75 °, the opening of the second slot 4113 is too large, so that the guiding effect of the second slot 4113 on the infrared ray is poor, and the infrared ray is further too divergent, thereby reducing the heating effect of the infrared ray on the display screen 100. Accordingly, the bearing 411 defines an angle α2 formed by the inner wall of the second groove 4113 and the direction in which the first groove 4112 points toward the second groove 4113, satisfying: 50 DEG.ltoreq.a2.ltoreq.75 DEG, which enables the second grooves 4113 to better guide the infrared rays emitted from the heating portion 412 to the display panel after being diffused.

Referring to fig. 5 and 9, fig. 9 is a schematic structural diagram of the diffuser corresponding to the heater. In this embodiment, the heating assembly 400 further includes a plurality of diffuser elements 420. Each of the diffusion members 420 is disposed corresponding to one of the heating members 410. The diffuser 420 is disposed on the carrying portion 411 and covers the openings of the step grooves 4111.

In this embodiment, for one heating element 410, the diffusion element 420 is disposed corresponding to the opening covering the plurality of step grooves 4111 in the heating element 410, so that the infrared rays emitted from the heating portion 412 are uniformly and scattered after being emitted from the step grooves 4111, thereby improving the coverage of the infrared rays emitted to the display screen 100, and further heating the entire surface of the display screen 100 uniformly and efficiently.

Optionally, the diffusion member 420 includes a diffusion body and a diffusion portion, the diffusion body is disposed corresponding to the opening of the stepped groove 4111, and the diffusion portion is protruding on a surface of the diffusion body facing the heating portion 412 and is disposed corresponding to the heating portion 412. In the direction in which the first groove 4112 is directed toward the second groove 4113, the outer diameter of the diffusion portion continuously becomes larger, so that the infrared rays emitted from the heating portion 412 can be further diffused by the diffusion portion, thereby further improving the coverage of the infrared rays emitted to the display screen 100. In addition, the diffusion member 420 can form a fitting structure with the stepped groove 4111 through the diffusion portion, thereby facilitating the installation of the diffusion member 420 in alignment with the heating portion 412 and improving the stability of the diffusion member 420 disposed at the stepped groove 4111.

In addition, referring to fig. 5 and 7 again, the light panel 220 includes a panel body and a plurality of light emitting elements, and the plurality of light emitting elements are disposed on the panel body at intervals and face the display screen 100. The backlight assembly 200 further includes a light reflection layer disposed on a surface of the board body carrying the plurality of light emitting elements and avoiding the plurality of light emitting elements. The light reflecting layer is configured to emit the infrared rays emitted from the heating component 400 to the display screen 100, so as to reduce the loss of the infrared rays, thereby assisting the infrared rays to irradiate to the display screen 100, and further improving the heating effect on the display screen 100.

Optionally, the display 10 further includes a glue frame, where the glue frame is used to adhere the display screen 100 and the backlight 210. The adhesive frame is a foam adhesive frame, so that the adhesive frame provides elastic buffering while adhering the display screen 100 and the backlight 210, and can play a role in buffering when the display 10 is impacted by external impact.

Alternatively, the backlight 210 has a first surface, a second surface and a third surface that are sequentially bent and connected, the first surface and the third surface are disposed in parallel, and the first surface and the third surface are disposed facing the display 100. The first surface is used for bearing the rubber frame. The backlight assembly 200 further includes an optical film carried by the third face, the third face forming a support for the optical film, and the second face forming a support for the optical film. The optical film is used for scattering and homogenizing the infrared rays emitted from the heating assembly 400, so as to improve the coverage and uniformity of the infrared rays projected to the display screen 100, thereby improving the heating effect on the display screen 100.

Further, in the direction in which the light plate 220 points to the display screen 100, the distance between the first surface and the third surface is 1 mm-2 mm, which is favorable for the optical film to diffuse the infrared rays emitted from the heating portion 412 and the visible light emitted from the light emitting element. For example, the spacing between the first face and the third face may be, but is not limited to, 1mm, or 1.2mm, or 1.4mm, or 1.6mm, or 1.8mm, or 2mm, or any other value between 1mm and 2 mm. If the distance between the first surface and the third surface is smaller than 1mm, the infrared light and the visible light are projected onto the display screen 100 after being diffused by the optical film, so that the coverage of the infrared light and the visible light on the display screen 100 is weakened, the heating of the display screen 100 is not facilitated, and the display effect of the display screen 100 is not facilitated. If the distance between the first surface and the third surface is greater than 2mm, the display 10 is too thick, which is disadvantageous for the light and thin design of the display 10. Therefore, in the direction in which the light plate 220 points to the display screen 100, the distance between the first surface and the third surface is 1 mm-2 mm, which is favorable for the optical film to diffuse the infrared rays emitted from the heating portion 412 and to diffuse the visible light emitted from the light emitting element.

Alternatively, the Light Emitting element may be, but not limited to, an LED, a Mini Light-Emitting Diode (Mini LED), or a Micro Light-Emitting Diode (Micro LED), etc.

Further, the surface of the optical film facing away from the display screen 100 abuts against the diffusion member 420, so that the distance between the infrared rays emitted to the optical film after passing through the diffusion member 420 is shortened, and the diffusion effect on the infrared rays is further improved.

The present application also provides a display device 1. Referring to fig. 2, 10 and 11, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present disclosure; fig. 11 is a block diagram of electrical connections of the display device of fig. 10. In this embodiment, the display device 1 includes a processor 20 and the display 10 according to any of the foregoing embodiments. The processor 20 is electrically connected to the heating assembly 400 in the display 10 and controls the heating assembly 400.

In this embodiment, the display device 1 is a liquid crystal display device 1, and the display device 1 may be, for example, but not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a personal computer (Personal Computer, PC), a personal digital assistant (Personal Digital Assistant, PDA), and the like.

In this embodiment, the processor 20 is configured to control the heating assembly 400, specifically, the processor 20 may control the plurality of heating elements 410 in the heating assembly 400 to work independently, so as to accurately heat the plurality of display areas 300 respectively, and the heating efficiency is high and the cost is low. Therefore, the display device 1 provided by the application can control the heating assembly 400 to heat the display screen 100 through the processor 20, so that the display device 1 can still display normally in a low-temperature severe environment, and the heating efficiency is high and the cost is low.

Alternatively, the processor 20 may be configured to control the power of the infrared emitted from the heating element 400, the number of heating elements 410 operated, the duration of operation of the heating element 400, etc.

Referring to fig. 12, fig. 12 is a block diagram showing electrical connection between the processor and the temperature sensor in fig. 10. In this embodiment, the display device 1 further includes a temperature sensor 30. The temperature sensor 30 is used to detect the current temperature of the display 100. The processor 20 is electrically connected to the temperature sensor 30 for receiving the current temperature. When the processor 20 determines that the current temperature is less than the minimum value of the preset temperature range, the processor 20 is configured to control the heating assembly 400 to emit infrared rays to heat the display 100. When the heating element 400 is emitting infrared light and the processor 20 determines that the current temperature is greater than or equal to the minimum value of the preset temperature range, the processor 20 is further configured to control the power of the infrared light emitted by the heating element 400 to make the current temperature be within the preset temperature range during a preset time. Outside the preset time, the processor 20 is configured to control the heating assembly 400 to stop emitting infrared rays.

In this embodiment, the temperature sensor 30 is configured to detect a current temperature of the display 100, the processor 20 is configured to compare the current temperature with the preset temperature range, and when the temperature sensor 30 determines that the current temperature is less than a minimum value of the preset temperature range, the processor 20 controls the heating assembly 400 to emit infrared rays to the display 100 so as to heat the display 100. When the current temperature of the display 100 rises within the preset temperature range, the processor 20 is configured to control the power of the heating assembly 400 to emit infrared rays within a preset time period, so as to control the change of the current temperature, so that the current temperature is within the preset temperature range, thereby realizing the heat preservation of the display 100. When the preset time is exceeded, the processor 20 controls the heating assembly 400 to stop emitting infrared rays, so as to realize automatic heating, heat preservation and heating shutdown, and the automatic heating performance of the display device 1 is good.

Wherein, during the period of maintaining the temperature of the display 100, when the current temperature is adjacent to the minimum value of the preset temperature range, the processor 20 increases the power of the infrared rays emitted from the heating assembly 400 so as to prevent the current temperature from falling below the preset temperature range. When the current temperature is near the maximum value of the preset temperature range, the processor 20 reduces the power of the infrared rays emitted by the heating assembly 400 to avoid the current temperature from rising above the preset temperature range to damage the display screen 100.

Alternatively, the preset temperature range is selected according to the actual specification and type of the display device 1, as long as the preset temperature range is a temperature range in which the liquid crystal in the display screen 100 of the display device 1 can normally operate. For example, the preset temperature range may be, but is not limited to, 0 ℃ to 50 ℃, or 10 ℃ to 45 ℃, or 5 ℃ to 55 ℃, etc.

Alternatively, the preset time may be set according to the size of the display screen 100 in the display device 1, for example, the larger the size of the display screen 100, the longer the preset time. For example, the preset time may be, but is not limited to, 2min, or 3min, or 1min, etc.

Referring to fig. 12 again, in the present embodiment, the temperature sensor 30 is further configured to detect an external environment temperature of the display 100. The processor 20 is further configured to receive the external ambient temperature. When the current temperature is less than the minimum value of the preset temperature range, the processor 20 is configured to adjust the power level of the infrared rays emitted from the heating assembly 400 according to the external environment temperature. Wherein the lower the external ambient temperature, the greater the power of the heating assembly 400 to emit infrared rays.

In this embodiment, by detecting the external ambient temperature, the power of the infrared light emitted by the heating component 400 is adjusted, so that the time for the heating component 400 to heat the display screen 100 is relatively stable, and a good use experience is provided for the customer. Therefore, the heating time of the display device 1 is stable at different external environmental temperatures, and the normal display operation can be performed in the stable time.

Specifically, the heating unit 400 needs 5 to 10 minutes to complete heating the display 100. For example, the heating assembly 400 may only need to heat the display 100 for 5min, or 6min, or 7min, or 8min, or 10min, or other values between 5min and 10min.

Further, the display device 1 includes a plurality of temperature sensors 30, each of the temperature sensors 30 being disposed corresponding to one of the display areas 300, and different temperature sensors 30 being disposed corresponding to different ones of the display areas 300. The processor 20 is electrically connected to the plurality of temperature sensors 30 for receiving a plurality of current temperatures. The processor 20 determines that the display area 300 where the current temperature is less than the minimum value of the preset temperature range is an area to be heated. The processor 20 is configured to control the heating element 410 disposed corresponding to the area to be heated to emit infrared rays to a portion of the display screen 100 located in the area to be heated. When the heating elements 410 disposed corresponding to the at least two areas to be heated are emitting infrared rays, the processor 20 determines that the area to be heated having the current temperature within the preset temperature range is a stable area for the at least two areas to be heated. The processor 20 is configured to control the infrared emitting element corresponding to the stable region to stop emitting infrared rays.

In this embodiment, the processor 20 precisely controls heating and heat preservation for each display area 300, so as to achieve intelligent heating of the display screen 100, improve heating efficiency and energy utilization rate, and reduce heating cost.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.

Claims

1. A display comprising a display screen and a backlight assembly arranged in a stack, the backlight assembly comprising:

2. The display according to claim 1, wherein the heating member is carried on an inner surface of the boss facing the accommodation space, and an angle α1 formed by an inner surface of the boss facing the accommodation space and an inner surface of the backlight body facing the display screen on a side facing away from the accommodation space satisfies: alpha 1 is more than or equal to 30 degrees and less than or equal to 60 degrees.

3. The display according to claim 2, wherein the convex portion has a groove concavely provided on an inner surface of the convex portion facing the accommodating space, the groove for accommodating the heating member.

4. The display of claim 1, wherein the heating element comprises:

5. The display of claim 4, wherein the stepped slot comprises:

6. The display according to claim 5, wherein, for each of the heating members, an angle α2 formed by an inner wall of the carrying portion defining the second groove and a direction of the first groove directed toward the second groove in a plane perpendicular to an arrangement direction of the plurality of heating portions satisfies: alpha 2 is more than or equal to 50 degrees and less than or equal to 75 degrees.

7. The display of claim 4, wherein the heating assembly further comprises:

8. A display device comprising a processor and a display according to any one of claims 1-7, wherein the processor is electrically connected to and controls the heating elements in the display.

9. The display device according to claim 8, wherein the display device further comprises:

10. The display device of claim 9, wherein the temperature sensor is further for detecting an external ambient temperature of the display screen, the processor is further for receiving the external ambient temperature;