Heating assembly and display device

Abstract

The invention relates to the field of display, and particularly discloses a heating assembly and a display device.The heating assembly comprises a first box body, a first light-emitting device and a first control module; the first box body is of a light-transmitting structure, a first photo-thermal layer is arranged on the side, close to the display panel, of the first box body, and the first photo-thermal layer is connected with the display panel; a first light-emitting device is arranged on one side, far away from the display panel, of the first box body, and the first light-emitting device is used for irradiating light from the bottom of the first box body to the direction of the display panel; a first light control structure is arranged in the first box body, and light rays penetrate through the first light control structure and irradiate the first photo-thermal layer; the first control module is connected with the first box body and used for adjusting the first light control structure so as to control the light passing quantity of the first light control structure. In this way, the coffee ring phenomenon generated in the manufacturing process of the display panel is improved.

Description

Technical Field

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

[0002] In current organic light-emitting (OLED) display panels, solution methods such as inkjet printing are often used to produce organic light-emitting materials. During the production process, ink droplets are deposited on the substrate to form an uneven film that is thick at the edges and thin in the middle, which is prone to the "coffee ring" phenomenon, affecting the uniformity of the organic light-emitting film layer and causing display abnormalities.

[0003] Therefore, how to improve the coffee ring phenomenon generated during the manufacturing process of the display panel has become an urgent problem to be solved in the art. Summary of the invention

[0004] The present application discloses a heating component and a display device, the purpose of which is to improve the coffee ring phenomenon generated during the manufacturing process of the display panel and enhance the uniformity of the organic light-emitting film layer.

[0005] An embodiment of the present application discloses a heating component for heating a display panel, the heating component comprising a first box body, a first light-emitting device and a first control module; the first box body is a light-transmitting structure, a first photothermal layer is arranged on a side of the first box body close to the display panel, and the first photothermal layer is connected to the display panel; a first light-emitting device is arranged on a side of the first box body away from the display panel, and the first light-emitting device is used to irradiate light from the bottom of the first box body toward the display panel; a first light-control structure is arranged in the first box body, and the first light-control structure transmits light and irradiates the light on the first photothermal layer; the first control module is connected to the first box body, and is used to adjust the first light-control structure to control the amount of light passing through the first light-control structure.

[0006] Optionally, the first box body includes a first substrate and a second substrate that are relatively arranged, the first light control structure includes a liquid crystal layer, and the liquid crystal layer is located between the first substrate and the second substrate; the first substrate and the second substrate are both light-transmitting structures, the second substrate includes a first electrode, a second electrode and a substrate body, the first electrode and the second electrode are respectively located on inner surfaces of the substrate body that are relatively arranged; the first control module includes a printed circuit board, and the printed circuit board is connected to the substrate body. When the substrate body is energized, an electric field is generated between the first electrode and the second electrode to control the angle deflection of the liquid crystal in the liquid crystal layer.

[0007] Optionally, the first photothermal layer is entirely laid on a side of the first substrate close to the display panel.

[0008] Optionally, the first box body includes a first substrate and a second substrate that are relatively arranged, the first light control structure includes a liquid crystal layer, and the liquid crystal layer is located between the first substrate and the second substrate; the first substrate is a light-transmitting substrate, the second substrate includes an array substrate, and the first control module includes a printed circuit board, which is connected to the array substrate to apply voltage to the array substrate, and the array substrate controls the angle deflection of liquid crystal in the liquid crystal layer under pressure; so as to control the amount of light transmitted by the first light-emitting device into the first box body.

[0009] Optionally, the first photothermal layer includes a plurality of first photothermal material modules, and the plurality of first photothermal material modules are arranged in an array on the first substrate; and each of the first photothermal material modules is disposed corresponding to an ink droplet inlet position on the display panel.

[0010] Optionally, a first separation layer is further provided on the side of the first photothermal layer close to the display panel. When the first photothermal layer heats and solidifies the ink droplets on the display panel, the first separation layer is disconnected to separate the first photothermal layer from the display panel.

[0011] Optionally, the heating assembly also includes a second box body, a second light-emitting device and a second control module, the second box body being a light-transmitting structure, the second box body being arranged on a side of the display panel away from the first box body, and a second photothermal layer being arranged on a side of the second box body close to the display panel; the second light-emitting device being arranged on a side of the second box body away from the display panel; a second light-controlling structure being arranged in the second box body, the second light-controlling structure transmitting light and irradiating the second photothermal layer; the second control module being connected to the second box body, for adjusting the second light-controlling structure, so as to control the amount of light transmitted by the second light-controlling structure; a support member being also arranged on a side of the second box body close to the display panel, the support member being connected to the display panel, and the support member being used to support the second box body at a preset height relative to the display panel.

[0012] Optionally, the second photothermal layer is made of a light-transmitting material; a second separation layer and an encapsulation layer are stacked in sequence on one side of the second box body close to the display panel, and the second separation layer and the encapsulation layer are arranged between the second box body and the second photothermal layer; the support member includes an encapsulation glue, one side of the encapsulation glue is connected to the encapsulation layer, and the other side is connected to the display panel; when the display panel is heated and the ink droplets are cured, the second separation layer is separated, and the encapsulation glue encapsulates the encapsulation layer and the second photothermal layer on the display panel.

[0013] Optionally, the second photothermal layer includes a plurality of second photothermal material modules, and the positions of the plurality of second photothermal material modules correspond one-to-one to the positions of the plurality of first photothermal material modules.

[0014] An embodiment of the present application further discloses a display device, including a display panel. The display device also includes the above-mentioned heating component, and the heating component is used to heat the display panel.

[0015] The present application sets a heating component. When the display panel needs to be heated, the first photothermal layer of the heating component is connected to the bottom of the display panel, so that the heat generated by the first photothermal layer can be effectively transferred to the display panel; when the light emitted by the first light-emitting device is irradiated from the bottom of the first box body toward the display panel, the light will enter the first box body and irradiate the first light control structure in the first box body. The first light control structure is adjusted by the first control module, so that the first light control structure controls the amount of light irradiated to the first light control structure according to the actual heating requirements of the display panel, and irradiates the light passing through the first light control structure to the first photothermal layer. The first photothermal layer generates different degrees of heat when receiving different amounts of light, so that the ink droplets on the display panel generate different heat according to their actual heating requirements, thereby making the organic light-emitting material solvent at the center of the ink droplet evaporate faster than at the edge, and finally the solute thickness at the center is not lower than that at the edge, thereby avoiding coffee ring defects, improving the uniformity of the organic light-emitting film layer, and ensuring the quality of the organic light-emitting display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. 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. In the drawings:

[0017] Figure 1 A schematic diagram of a first embodiment of a heating assembly of the present application;

[0018] Figure 2 A schematic diagram of a second embodiment of a heating assembly of the present application;

[0019] Figure 3 A top view of a third embodiment of a heating assembly of the present application;

[0020] Figure 4 A schematic diagram of a fourth embodiment of a heating assembly of the present application;

[0021] Figure 5is a schematic diagram of a fifth embodiment of the heating assembly of the present application;

[0022] Figure 6 is a schematic diagram of a sixth embodiment of the heating assembly of the present application;

[0023] Figure 7 is a schematic diagram of a seventh embodiment of the heating assembly of the present application;

[0024] Figure 8 It is a schematic diagram of an embodiment of a display device of the present application.

[0025] Among them, 10, display device; 100, heating component; 200, display panel; 110, first box body; 111, first photothermal layer; 112, first photothermal material module; 113, first separation layer; 114, first light control structure; 115, liquid crystal layer; 120, first substrate; 121, light-transmitting substrate; 130, second substrate; 131, first electrode; 132, second electrode; 133, substrate body; 134, array substrate; 140, first light-emitting device; 150, first control module; 151, printed circuit board; 160, second box body; 161, second photothermal layer; 162, second photothermal material module; 163, second light control structure; 164, second separation layer; 165, packaging layer; 170, second light-emitting device; 180, second control module; 190, support member; 191, packaging glue. DETAILED DESCRIPTION

[0026] The present application is described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Figure 1 This is a schematic diagram of a first embodiment of the heating assembly of the present application. Figure 1 As shown, the embodiment of the present application discloses a heating component 100 for heating a display panel 200, and the heating component 100 includes a first box body 110, a first light-emitting device 140 and a first control module 150; the first box body 110 is a light-transmitting structure, and a first photothermal layer 111 is arranged on a side of the first box body 110 close to the display panel 200, and the first photothermal layer 111 is connected to the display panel 200; a first light-emitting device 140 is arranged on a side of the first box body 110 away from the display panel 200, and the first light-emitting device 140 is used to irradiate light from the bottom of the first box body 110 toward the display panel 200; a first light-control structure 114 is arranged in the first box body 110, and the first light-control structure 114 transmits light and irradiates it on the first photothermal layer 111; the first control module 150 is connected to the first box body 110, and is used to adjust the first light-control structure 114 to control the amount of light passing through the first light-control structure 114.

[0028] The present application sets a heating component 100. When the display panel 200 needs to be heated, the first photothermal layer 111 of the heating component 100 is connected to the bottom of the display panel 200, so that the heat generated by the first photothermal layer 111 can be effectively transferred to the display panel 200; when the light emitted by the first light-emitting device 140 is irradiated from the bottom of the first box body 110 toward the display panel 200, the light will enter the first box body 110 and irradiate the first light control structure 114 in the first box body 110. The first control module 150 adjusts the first light control structure 114 so that the first light control structure 114 is According to the actual heating requirement of the display panel 200, the amount of light irradiated to the first light control structure 114 is controlled, and the light passing through the first light control structure 114 is irradiated to the first photothermal layer 111. The first photothermal layer 111 generates different degrees of heat when receiving different amounts of light, so that the ink droplets on the display panel 200 generate different amounts of heat according to their actual heating requirements, thereby making the organic light-emitting material solvent at the center of the ink droplet evaporate faster than at the edge, and finally the solute thickness at the center is not lower than that at the edge, thereby avoiding coffee ring defects, improving the uniformity of the organic light-emitting film layer, and ensuring the quality of the organic light-emitting display panel 200.

[0029] It should be noted that the coffee ring phenomenon mentioned in the present application refers to the fact that when the droplets used to form an organic material layer, i.e., ink droplets, are dropped on the display panel 200 and spread on the substrate, the evaporation rate of the solvent at the edge is greater than that at the center. In order to compensate for the solvent loss at the edge, capillary flow from the center to the edge will be generated inside the droplet, carrying the solute to the edge. Finally, the solute is deposited on the substrate to form an uneven thin film that is thick at the edges and thin in the middle, affecting the uniformity of the organic light-emitting film layer and causing display abnormalities.

[0030] In order to solve the above-mentioned problem, the present application designs a heating component 100 to heat the display panel 200 .

[0031] Specifically, the first box body 110 includes a first substrate 120 and a second substrate 130 that are relatively arranged, the first light control structure 114 includes a liquid crystal layer 115, and the liquid crystal layer 115 is located between the first substrate 120 and the second substrate 130; the first substrate 120 and the second substrate 130 are both light-transmitting structures, the second substrate 130 includes a first electrode 131, a second electrode 132 and a substrate body 133, and the first electrode 131 and the second electrode 132 are respectively located on the inner surfaces of the substrate body 133 that are relatively arranged; the first control module 150 includes a printed circuit board 151, and the printed circuit board 151 is connected to the substrate body 133. When the substrate body 133 is energized, an electric field is generated between the first electrode 131 and the second electrode 132 to control the angle deflection of the liquid crystal in the liquid crystal layer 115.

[0032] In this embodiment, the printed circuit board 151 and the first light-emitting device 140 can be powered by an external power supply. The printed circuit board 151 can adjust the output voltage according to the actual heating demand of the display panel 200. The output voltage is adjusted to control the electric field strength formed between the first electrode 131 and the second electrode 132, thereby controlling the deflection angle of the liquid crystal in the liquid crystal layer 115 to achieve the purpose of controlling the amount of light passing. The principle of forming an electric field by the first electrode 131 and the second electrode 132 of the present application is the same as the existing principle of forming a parallel electric field, which will not be repeated. Among them, the first light-emitting device 140 can be a light board or other types of light sources.

[0033] When the display panel 200 needs to be heated, the light emitted by the first light emitting device 140 irradiates the first box body 110, and passes through the first box body 110 to irradiate the liquid crystal layer 115 in the first box body 110. At this time, the printed circuit board 151 outputs a corresponding voltage to the first electrode 131 and the second electrode 132 in the substrate body 133 according to the actual heating condition of the display panel 200, so that a parallel electric field is formed between the first electrode 131 and the second electrode 132 in the substrate body 133, and the liquid crystal layer 115 in the first box body 110 is heated by the electric field. Under the control of the field, the liquid crystal begins to deflect, thereby controlling the amount of light irradiated onto the liquid crystal layer 115; and the corresponding light is transmitted through the liquid crystal layer 115 to irradiate the first photothermal layer 111. When the first photothermal layer 111 receives the light, it generates corresponding heat, thereby heating the display panel 200, so that the ink droplets on the display panel 200 are heated. The evaporation speed of the ink droplets is controlled by active heating, which can improve the phenomenon of poor coffee rings to a certain extent, improve the uniformity of the organic light-emitting film layer, and ensure the quality of the organic light-emitting display panel 200.

[0034] Furthermore, in this embodiment, the first photothermal layer 111 is entirely laid on the side of the first substrate 120 close to the display panel 200. By laying the first photothermal layer 111 entirely, the heating area of ​​the display panel 200 is increased, so that many ink droplets above the display panel 200 can be heated at the same time, thereby improving the coffee ring phenomenon formed by the display panel 200 as a whole to a certain extent.

[0035] Among them, the main components of the first photothermal layer 111 of the present application may include one or more of gold nanoparticles, polydopamine nanoparticles, graphene, ferrosoferric oxide, and the like.

[0036] Figure 2 This is a schematic diagram of a second embodiment of the heating assembly of the present application. Figure 2 As shown, Figure 2 The illustrated embodiment is based on Figure 1The improvement is as follows: the first box body 110 includes a first substrate 120 and a second substrate 130 that are arranged opposite to each other, the first light control structure 114 includes a liquid crystal layer 115, and the liquid crystal layer 115 is located between the first substrate 120 and the second substrate 130; the first substrate 120 is a light-transmitting substrate 121, the second substrate 130 includes an array substrate 134, and the first control module 150 includes a printed circuit board 151, which is connected to the array substrate 134 to apply voltage to the array substrate 134, and the array substrate 134 controls the angle deflection of the liquid crystal in the liquid crystal layer 115 under pressure; so as to control the amount of light irradiated into the first box body 110 by the first light-emitting device 140.

[0037] In this embodiment, the first substrate 120 is a light-transmitting substrate 121, which can be a glass substrate. The second substrate 130 is an array substrate 134. The structure of the array substrate 134 in this embodiment is the same as the structure of a traditional array substrate 134. The array substrate 134 is connected to the printed circuit board 151, and the printed circuit board 151 is used to output a control signal to the array substrate 134. The array substrate 134 can control the deflection of liquid crystals in different areas of the first box body 110 and the size of the liquid crystal deflection angle according to the control signal.

[0038] In this embodiment, the principle of controlling the liquid crystal deflection by the array substrate 134 is the same as the principle of controlling the liquid crystal deflection by the array substrate 134 in the display panel 200 , and thus will not be described in detail.

[0039] Specifically, when it is necessary to heat a local area of ​​the display panel 200 or ink droplets at certain positions, the light emitted by the first light-emitting device 140 can be used to irradiate the first box body 110, and pass through the first box body 110 to irradiate the liquid crystal layer 115 in the first box body 110. At this time, the printed circuit board 151 outputs a control signal to the array substrate 134 according to the area or position of the display panel 200 that actually needs to be heated, so that the array substrate 134 controls the liquid crystal in the corresponding area in the first box body 110 to deflect, while the liquid crystal in other areas does not deflect, so that the light can only pass through the deflected liquid crystal area and finally irradiate the area corresponding to the first photothermal layer 111. When the first photothermal layer 111 receives light on the area corresponding to the display panel 200 that needs to be heated, it will generate corresponding heat, thereby heating the area on the display panel 200 that needs to be heated, so that the ink droplets in the area on the display panel 200 are heated, thereby controlling the volatilization speed of the ink droplets, improving the phenomenon of poor coffee ring to a certain extent, and ensuring the quality of the organic light-emitting display panel 200.

[0040] Since the ink droplets on the display panel 200 may need to be heated in different situations, in order to allow the first photothermal layer 111 to heat each ink droplet on the display panel 200 individually, the present application further improves the first photothermal layer 111, and the specific improvements are as follows:

[0041] Figure 3 This is a top view of a third embodiment of the heating assembly of the present application, as shown Figure 3 As shown, the first photothermal layer 111 includes a plurality of first photothermal material modules 112 , which are arranged in an array on the first substrate 120 ; and each first photothermal material module 112 is disposed corresponding to an ink droplet injection position on the display panel 200 .

[0042] The present embodiment is different from the previous embodiment in that the first photothermal layer 111 is improved in the present embodiment, and the first photothermal layer 111 includes a plurality of first photothermal material modules 112 arranged in an array; each first photothermal material module 112 is independently provided, and its length and width are at least 1 micron, and the spacing between two adjacent first photothermal material modules 112 is at least 1 micron; and each first photothermal material module 112 is made to correspond to the ink droplet injection position of the display panel 200; so that the first photothermal material module 112 can ensure that each ink droplet is heated individually as much as possible.

[0043] When it is necessary to heat the local position of the display panel 200 or the ink droplets at certain positions, the light emitted by the first light emitting device 140 can be used to irradiate the first box body 110, and pass through the first box body 110 to irradiate the liquid crystal layer 115 in the first box body 110. At this time, the printed circuit board 151 controls the array substrate 134 according to the actual heating requirement of the display panel 200, so that the array substrate 134 controls the liquid crystal in the corresponding area of ​​the first box body 110 to deflect, while the liquid crystal in other areas or positions does not deflect, so that the light can only pass through the deflected liquid crystal area or position, and finally irradiate the first liquid crystal layer 115 in the corresponding area or position. On a photothermal material module 112, when the first photothermal material module 112 in the corresponding area receives light, corresponding heat is generated, and the corresponding first photothermal materials in other areas or positions will not be affected, thereby heating the designated area of ​​the display panel 200, so that the ink droplets in the area or position on the display panel 200 are heated; and since each first heating material module just corresponds to the position of the ink droplet, the center of the ink droplet is more easily heated, and the organic light-emitting material solvent at the center of the ink droplet evaporates faster than the edge of the ink droplet. Finally, the solute thickness at the center is not lower than that at the edge, thereby avoiding coffee ring defects and ensuring the quality of the organic light-emitting display panel 200.

[0044] That is, in this embodiment, under the combined control of the first photothermal material module 112 and the array substrate 134 arranged in a matrix on the liquid crystal layer 115, different areas of the display panel 200 can be heated to achieve zoned heating, and when the designated area is heated, other areas will not be heated, which is beneficial to improve the coffee ring phenomenon that exists locally in the display panel 200.

[0045] In addition, in this embodiment, the plurality of first photothermal material modules 112 are independently arranged in a matrix and have spacing therebetween, so the number and shape of their arrangement can be suitable for organic light-emitting display panels 200 of different sizes and types; for example, suitable for rigid or flexible organic light-emitting display panels 200.

[0046] Figure 4 This is a schematic diagram of a fourth embodiment of the heating assembly of the present application, as shown Figure 4 As shown, a first separation layer 113 is also provided on the side of the first photothermal layer 111 close to the display panel 200 . When the first photothermal layer 111 heats and solidifies the ink droplets on the display panel 200 , the first separation layer 113 is disconnected to separate the first photothermal layer 111 from the display panel 200 .

[0047] This embodiment is different from the previous embodiment in that a first separation layer 113 is further provided on the first photothermal layer 111. When the first photothermal layer 111 generates heat to solidify the organic light-emitting ink droplets, the first separation layer 113 can be completely disconnected to peel off the first photothermal layer 111 from the display panel 200. In this way, the heating device can be quickly separated from the display panel 200 after heating the display panel 200, which is beneficial to improving the production efficiency of the display panel 200.

[0048] On the other hand, the first separation layer 113 can also be partially disconnected. When the first separation layer 113 is partially disconnected, the first separation layer 113 in this embodiment can be the same as the substrate material of the display panel 200. For example, the first separation layer 113 can be made of a polyimide material, and the organic light-emitting functional layer can be sequentially made on the first separation layer 113. After the first photothermal layer 111 solidifies the organic light-emitting ink droplets, the first separation layer 113 can be partially disconnected, a part of which is retained as the substrate of the display panel 200, and a part of which follows the first light-emitting layer to separate from the display panel 200. This not only facilitates the separation of the heating device from the display panel 200 after the heating is completed, but also allows the first separation layer 113 to be directly used as the substrate of the display panel 200, thereby reducing the manufacturing steps, saving costs, and improving the manufacturing efficiency of the display panel 200. Moreover, since in this embodiment, each film layer of the organic light-emitting display panel 200 is directly made on the liquid crystal box, the accuracy of different volatilization speeds of different regions of the organic light-emitting ink droplets can be ensured, further avoiding coffee ring defects and ensuring the quality of the organic light-emitting display panel 200.

[0049] Figure 5 This is a schematic diagram of a fifth embodiment of the heating assembly of the present application, as shown in Figure 5 As shown, the heating assembly 100 also includes a second box body 160, a second light-emitting device 170 and a second control module 180. The second box body 160 is a light-transmitting structure. The second box body 160 is arranged on a side of the display panel 200 away from the first box body 110, and a second photothermal layer 161 is arranged on the side of the second box body 160 close to the display panel 200; the second light-emitting device 170 is arranged on the side of the second box body 160 away from the display panel 200; a second light-control structure 163 is arranged in the second box body 160, and the second light-control structure 163 transmits light and irradiates it on the second photothermal layer 161; the second control module 180 is connected to the second box body 160, and is used to adjust the second light-control structure 163 to control the amount of light passing through the second light-control structure 163; a support member 190 is also arranged on the side of the second box body 160 close to the display panel 200, and the support member 190 is connected to the display panel 200, and the support member 190 is used to support the second box body 160 at a preset height relative to the display panel 200.

[0050] In this embodiment, a second box body 160 is further provided on the basis of the first box body 110. The structure of the second box body 160 is the same as that of the first box body 110. The second light control structure 163 provided in the second box body 160 can be the same as the first light control structure 114, both of which are liquid crystal layers 115. In addition, the material of the second photothermal layer 161 provided on the side of the second box body 160 close to the display panel 200 is the same as that of the first photothermal layer 111. The second light-emitting device 170 can be a light board or other light sources, and the second control module 180 can be a printed circuit board 151.

[0051] By setting the second box body 160 above the display panel 200 and setting the first box body 110 below the display panel 200, using the first box body 110 to control the first photothermal layer 111 to heat the bottom of the display panel 200, and using the second box body 160 to control the second photothermal layer 161 to heat the top of the display panel 200, the heating efficiency of the display panel 200 can be effectively improved, and the efficiency of improving the coffee ring phenomenon of the display panel 200 can be improved.

[0052] Since the second box body 160 is arranged above the display panel 200, in order to prevent the second photothermal layer 161 on the second box body 160 from directly contacting the ink droplets on the display panel 200 and destroying the shape of the ink droplets, a support member 190 is also arranged on the side of the second box body 160 close to the display panel 200.

[0053] When the display panel 200 needs to be heated, the support member 190 is connected to the display panel 200 so that the second box body 160 together with the second photothermal layer 161 are supported at a preset height relative to the display panel 200, wherein the preset height needs to be greater than the thickness of the ink droplets on the display panel 200 to avoid direct contact between the second photothermal layer 161 and the ink droplets.

[0054] When the light emitted by the second light emitting device 170 irradiates from the top of the second box body 160 toward the display panel 200, the light enters the second box body 160 and irradiates the first light control structure 114 in the second box body 160. The second control module 180 adjusts the second light control structure 163 so that the second light control structure 163 controls the amount of light irradiated to the second light control structure 163 according to the actual heating demand of the display panel 200, and irradiates the light passing through the second light control structure 163 to the second photothermal layer 161. The second photothermal layer 161 generates different degrees of heat when receiving different amounts of light, so that the ink droplets on the display panel 200 generate different amounts of heat according to their actual heating needs, thereby causing the organic light-emitting material solvent at the center of the ink droplet to evaporate faster than at the edge. Ultimately, the solute thickness at the center is not lower than that at the edge, thereby avoiding coffee ring defects, improving the uniformity of the organic light-emitting film layer, and ensuring the quality of the organic light-emitting display panel 200. When combined with the heating of the first photothermal layer 111, the efficiency of heating to improve the coffee ring phenomenon is effectively improved.

[0055] It should be noted that, in this embodiment, since the principle of the second box body 160 controlling the second photothermal layer 161 to heat the display panel 200 is the same as the principle of the first box body 110 controlling the first photothermal layer 111 to heat the display panel 200, it will not be repeated.

[0056] Figure 6 This is a schematic diagram of a sixth embodiment of the heating assembly of the present application, as shown Figure 6 As shown, Figure 6 The illustrated embodiment is based on Figure 5 The improvement is that the second photothermal layer 161 is made of a light-transmitting material; the second box body 160 is also provided with a second separation layer 164 and an encapsulation layer 165 stacked in sequence on one side close to the display panel 200, and the second separation layer 164 and the encapsulation layer 165 are arranged between the second box body 160 and the second photothermal layer 161; the support member 190 includes a packaging glue 191, one side of the packaging glue 191 is connected to the encapsulation layer 165, and the other side is connected to the display panel 200; when the display panel 200 heats and the ink droplets are cured, the second separation layer 164 is separated, and the packaging glue 191 encapsulates the encapsulation layer 165 and the second photothermal layer 161 on the display panel 200.

[0057] In this embodiment, the second photothermal layer 161 is made of a light-transmitting material, and its other properties are the same as those of the first photothermal layer 111; a second separation layer 164 and an encapsulation layer 165 are sequentially arranged between the second box body 160 and the second photothermal layer 161, and the support member 190 in this embodiment can be encapsulated with glue 191 and connected to the encapsulation layer 165 using the encapsulation glue 191.

[0058] When the second photothermal layer 161 is used to heat the top of the display panel 200, the packaging glue 191 is connected to the display panel 200 so that the second photothermal layer 161 is supported to a certain height by the packaging glue 191. While avoiding ink droplets on the display panel 200, the second photothermal layer 161 and the display panel 200 are directly packaged by the packaging glue 191.

[0059] After the second photothermal layer 161 completes curing of the ink droplets, the second box body 160 and the display panel 200 are peeled off through the second separation layer 164, so that the encapsulation layer 165 and the second photothermal layer 161 remain on the display panel 200 as a whole, thereby improving the coffee ring phenomenon of the display panel 200 and realizing the encapsulation of the display panel 200, thereby improving the production efficiency of the display panel 200 and saving costs.

[0060] Since the second photothermal layer 161 in this embodiment is a light-transmitting material (the main material is titanium carbide (Ti3C2Tx) MXene), the visible light transmittance is high (87% to 95%), and the normal display of the organic light-emitting display panel 200 is less affected; and when the organic light-emitting display panel 200 operates in a low-temperature environment, the second photothermal layer 161 is affected by the light of the display panel 200 to generate heat, which can avoid the problem of poor luminous efficiency and display effect of the display unit in a low-temperature environment.

[0061] Figure 7 This is a schematic diagram of a seventh embodiment of the heating assembly of the present application, as shown Figure 7 As shown, Figure 7The illustrated embodiment is based on Figure 6 The second photothermal layer 161 includes a plurality of second photothermal material modules 162 , and the positions of the plurality of second photothermal material modules 162 correspond one-to-one to the positions of the plurality of first photothermal material modules 112 .

[0062] The present embodiment is different from the previous embodiment in that, in the present embodiment, the positions of the plurality of second photothermal material modules 162 on the side of the second box body 160 close to the display panel 200 correspond to the positions of the plurality of first photothermal material modules 112 on the side of the first box body 110 close to the display panel 200. In this way, when the first photothermal layer 111 and the second photothermal layer 161 are heated from the top and bottom of the display panel 200 respectively, the overall heating is more uniform, which is beneficial to improving the uniformity of the organic light-emitting film layer of the display panel 200.

[0063] Figure 8 is a schematic diagram of an embodiment of a display device of the present application, such as Figure 8 As shown, the embodiment of the present application further discloses a display device 10, including a display panel 200, and the display device 10 also includes the above-mentioned heating component 100, and the heating component 100 is used to heat the display panel 200. When the display panel 200 is in a low-temperature use environment, the heating component 100 heats the display panel 200 so that the display panel 200 reaches a normal use temperature, thereby improving the problem of poor luminous efficiency and display effect of the display panel 200 in a low-temperature environment.

[0064] The display device 10 of the present application is mainly for a display device 10 with an organic light-emitting display panel 200 , which may be a mobile phone, a computer, a television, or other device. The present application does not impose any specific restrictions on the type of the display device 10 .

[0065] During the manufacturing process of the display panel 200 in the display device 10 , the coffee ring phenomenon is easily generated, thereby affecting the quality of the display device 10 .

[0066] Based on the above problems, the present application sets a heating component 100. When the display panel 200 needs to be heated, the first photothermal layer 111 of the heating component 100 is connected to the bottom of the display panel 200, so that the heat generated by the first photothermal layer 111 can be effectively transferred to the display panel 200; when the light emitted by the first light-emitting device 140 is irradiated from the bottom of the first box body 110 toward the display panel 200, the light will enter the first box body 110 and irradiate the first light control structure 114 in the first box body 110. The first control module 150 adjusts the first light control structure 114 so that the first light control structure 114 is adjusted according to the display panel 200. The actual heating demand of the display panel 200 is controlled, the amount of light irradiated to the first light control structure 114 is controlled, and the light passing through the first light control structure 114 is irradiated to the first photothermal layer 111. The first photothermal layer 111 generates different degrees of heat when receiving different amounts of light, so that the ink droplets on the display panel 200 generate different amounts of heat according to their actual heating needs, thereby making the organic light-emitting material solvent at the center of the ink droplet evaporate faster than at the edge. Finally, the solute thickness at the center is not lower than that at the edge, thereby avoiding coffee ring defects, improving the uniformity of the organic light-emitting film layer, ensuring the quality of the organic light-emitting display panel 200, and thus improving the quality of the display device 10.

[0067] After the display panel 200 is manufactured, the heating component 100 can also be assembled together with the display panel 200 and the shell of the display device 10, so that when the display device 10 is used in a low temperature environment, the heating component 100 can be used to heat the display panel 200 to ensure the normal use of the display panel 200, thereby extending the service life of the display device 10.

[0068] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0069] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A heating assembly for heating a display panel, characterized in that: The heating assembly includes a first box body, a first light emitting device and a first control module; The first box body is a light-transmitting structure, a first photothermal layer is disposed on a side of the first box body close to the display panel, and the first photothermal layer is connected to the display panel; a first light-emitting device is disposed on a side of the first box body away from the display panel, and the first light-emitting device is used to irradiate light from the bottom of the first box body toward the display panel; A first light control structure is disposed in the first box body, and the first light control structure transmits light and irradiates the light onto the first photothermal layer; The first control module is connected to the first box body, and is used to adjust the first light control structure to control the light transmission amount of the first light control structure.

2. The heating assembly according to claim 1, characterized in that The first box body includes a first substrate and a second substrate arranged opposite to each other, the first light control structure includes a liquid crystal layer, and the liquid crystal layer is located between the first substrate and the second substrate; The first substrate and the second substrate are both light-transmitting structures, the second substrate comprises a first electrode, a second electrode and a substrate body, the first electrode and the second electrode are respectively located on inner surfaces of the substrate body that are opposite to each other; The first control module includes a printed circuit board, which is connected to the substrate body. When the substrate body is powered on, an electric field is generated between the first electrode and the second electrode to control the angle deflection of the liquid crystal in the liquid crystal layer.

3. The heating assembly according to claim 2, characterized in that The first photothermal layer is entirely laid on a side of the first substrate close to the display panel.

4. The heating assembly according to claim 1, characterized in that The first box body includes a first substrate and a second substrate arranged opposite to each other, the first light control structure includes a liquid crystal layer, and the liquid crystal layer is located between the first substrate and the second substrate; The first substrate is a light-transmitting substrate, the second substrate includes an array substrate, the first control module includes a printed circuit board, the printed circuit board is connected to the array substrate to apply a voltage to the array substrate, and the array substrate controls the angle deflection of the liquid crystal in the liquid crystal layer under pressure; To control the amount of light emitted by the first light emitting device into the first box body.

5. The heating assembly according to claim 4, characterized in that The first photothermal layer includes a plurality of first photothermal material modules, and the plurality of first photothermal material modules are arranged in an array on the first substrate; and each of the first photothermal material modules is disposed corresponding to an ink droplet inlet position on the display panel.

6. The heating assembly according to claim 5, characterized in that A first separation layer is further provided on the side of the first photothermal layer close to the display panel. When the first photothermal layer heats and solidifies the ink droplets on the display panel, the first separation layer is disconnected to separate the first photothermal layer from the display panel.

7. The heating assembly according to claim 6, characterized in that The heating assembly further includes a second box body, a second light emitting device and a second control module, wherein the second box body is a light-transmitting structure, the second box body is arranged on a side of the display panel away from the first box body, and a second photothermal layer is arranged on a side of the second box body close to the display panel; The second light emitting device is arranged on a side of the second box body away from the display panel; A second light control structure is disposed in the second box body, and the second light control structure transmits light and irradiates the light onto the second photothermal layer; The second control module is connected to the second box body and is used to adjust the second light control structure to control the light transmission amount of the second light control structure; A support member is further provided on a side of the second box body close to the display panel. The support member is connected to the display panel and is used to support the second box body at a preset height relative to the display panel.

8. The heating assembly according to claim 7, characterized in that The second photothermal layer is made of a light-transmitting material; a second separation layer and an encapsulation layer are stacked in sequence on a side of the second box body close to the display panel, and the second separation layer and the encapsulation layer are arranged between the second box body and the second photothermal layer; The support member includes packaging glue, one side of the packaging glue is connected to the packaging layer, and the other side is connected to the display panel; when the ink droplets on the display panel are heated and solidified, the second separation layer is separated, and the packaging glue encapsulates the packaging layer and the second photothermal layer on the display panel.

9. The heating assembly according to claim 8, characterized in that The second photothermal layer includes a plurality of second photothermal material modules, and the positions of the plurality of second photothermal material modules correspond one-to-one to the positions of the plurality of first photothermal material modules.

10. A display device, comprising a display panel, characterized in that: The display device further comprises a heating component as claimed in any one of claims 1 to 9, wherein the heating component is used to heat the display panel.

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