Heating assembly and display device

Abstract

The application belongs to the field of display and specifically 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 a light-transmitting structure. A first light-heat layer is arranged on the side of the first box body close to the display panel. The first light-heat layer is connected with the display panel. A first light-emitting device is arranged on the side of the first box body away from the display panel. The first light-emitting device is used for irradiating light from the bottom of the first box body towards the display panel. A first light control structure is arranged in the first box body. The first light control structure transmits light and irradiates the light on the first light-heat layer. The first control module is connected with the first box body and is used for adjusting the first light control structure to control the light transmission amount of the first light control structure. The application improves the coffee ring phenomenon generated in the manufacturing process of the display panel.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a heating component and a display device. Background Technology

[0002] In current organic light-emitting diode (OLED) display panels, solution methods such as inkjet printing are often used to manufacture organic light-emitting materials. However, during the manufacturing process, the deposition of ink droplets on the substrate can form an uneven film with thicker edges and thinner centers, which can easily lead to a "coffee ring" defect. This affects the uniformity of the organic light-emitting film layer and causes display abnormalities.

[0003] Therefore, how to improve the coffee ring phenomenon caused by the manufacturing process of display panels has become an urgent problem to be solved in this field. Summary of the Invention

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

[0005] This application discloses a heating assembly for heating a display panel. The heating assembly includes a first housing, a first light-emitting device, and a first control module. The first housing is a light-transmitting structure. A first photothermal layer is disposed on the side of the first housing close to the display panel and is connected to the display panel. A first light-emitting device is disposed on the side of the first housing away from the display panel, and the first light-emitting device is used to irradiate light from the bottom of the first housing toward the display panel. A first light-controlling structure is disposed inside the first housing, and the first light-controlling structure transmits light and irradiates the first photothermal layer. The first control module is connected to the first housing and is used to adjust the first light-controlling structure to control the amount of light transmitted through the first light-controlling structure.

[0006] Optionally, the first housing includes a first substrate and a second substrate disposed opposite to each other, and the first light control structure includes a liquid crystal layer located between the first substrate and the second substrate; both the first substrate and the second substrate are light-transmitting structures, and the second substrate includes a first electrode, a second electrode, and a substrate body, with the first electrode and the second electrode respectively located on the inner surfaces of the substrate body disposed opposite to each other; the first control module includes a printed circuit board connected to the substrate body, and 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 laid entirely on the side of the first substrate closest to the display panel.

[0008] Optionally, the first housing includes a first substrate and a second substrate disposed opposite to each other, the first light control structure includes a liquid crystal layer 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; thereby controlling the amount of light transmitted into the first housing by the first light-emitting device.

[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 first photothermal material module is configured to correspond to the ink droplet ingress position on the display panel.

[0010] Optionally, a first separation layer is also provided on the side of the first photothermal layer near the display panel. When the first photothermal layer heats and solidifies the ink droplets on the display panel, the first separation layer breaks, separating the first photothermal layer from the display panel.

[0011] Optionally, the heating assembly further includes a second housing, a second light-emitting device, and a second control module. The second housing is a light-transmitting structure and is disposed on the side of the display panel away from the first housing. A second photothermal layer is disposed on the side of the second housing near the display panel. The second light-emitting device is disposed on the side of the second housing away from the display panel. A second light-controlling structure is disposed inside the second housing, which transmits light and illuminates the second photothermal layer. The second control module is connected to the second housing and is used to adjust the second light-controlling structure to control the amount of light transmitted through it. A support member is also disposed on the side of the second housing near the display panel. The support member is connected to the display panel and is used to support the second housing relative to the display panel at a preset height.

[0012] Optionally, the second photothermal layer is made of a light-transmitting material; a second separation layer and an encapsulation layer are also sequentially stacked on the side of the second housing near the display panel, the second separation layer and the encapsulation layer being disposed between the second housing and the second photothermal layer; the support includes encapsulating adhesive, one side of which 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 solidify, the second separation layer separates, and the encapsulating adhesive encapsulates the encapsulation layer and the second photothermal layer onto 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 with those of the plurality of first photothermal material modules.

[0014] This application also discloses a display device, including a display panel, and the display device further includes the heating component described above, the heating component being used to heat the display panel.

[0015] This application incorporates a heating component. When the display panel needs heating, the first photothermal layer of the heating component is connected to the bottom of the display panel, allowing the heat generated by the first photothermal layer to be effectively transferred to the display panel. When light emitted from the first light-emitting device shines from the bottom of the first housing towards the display panel, the light enters the interior of the first housing and illuminates the first light-controlling structure within it. The first control module adjusts the first light-controlling structure according to the actual heating requirements of the display panel, controlling the amount of light passing through it and directing the light through the structure onto the first photothermal layer. The first photothermal layer generates varying degrees of heat under different light irradiation levels, causing the ink droplets on the display panel to generate different amounts of heat according to their actual heating needs. This results in the organic light-emitting material solvent at the center of the ink droplets evaporating faster than at the edges, ensuring that the solute thickness at the center is not lower than at the edges. This avoids defects such as the "coffee ring" effect, improves the uniformity of the organic light-emitting film layer, and guarantees the quality of the organic light-emitting display panel. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They serve to demonstrate implementation methods of this application and, together with the textual description, explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the first embodiment of the heating assembly of this application;

[0018] Figure 2 This is a schematic diagram of a second embodiment of the heating assembly of this application;

[0019] Figure 3 This is a top view of a third embodiment of the heating assembly of this application;

[0020] Figure 4 This is a schematic diagram of the fourth embodiment of the heating assembly of this application;

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

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

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

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

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

[0026] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Figure 1 This is a schematic diagram of the first embodiment of the heating assembly of this application, as shown. Figure 1 As shown in the figure, this application discloses a heating component 100 for heating a display panel 200. The heating component 100 includes a first housing 110, a first light-emitting device 140, and a first control module 150. The first housing 110 is a light-transmitting structure. A first photothermal layer 111 is disposed on the side of the first housing 110 near the display panel 200 and is connected to the display panel 200. The first light-emitting device 140 is disposed on the side of the first housing 110 away from the display panel 200 and is used to irradiate light from the bottom of the first housing 110 toward the display panel 200. A first light-controlling structure 114 is disposed inside the first housing 110 and transmits light through it, irradiating the first photothermal layer 111. The first control module 150 is connected to the first housing 110 and is used to adjust the first light-controlling structure 114 to control the amount of light transmitted through the first light-controlling structure 114.

[0028] This application, by setting up a heating component 100, connects the first photothermal layer 111 of the heating component 100 to the bottom of the display panel 200 when heating is required, 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 shines from the bottom of the first housing 110 toward the display panel 200, the light enters the interior of the first housing 110 and shines on the first light-controlling structure 114 inside the first housing 110. The first control module 150 adjusts the first light-controlling structure 114 so that the first light-controlling structure 114... 4. Based on the actual heating requirements of the display panel 200, the amount of light transmitted to the first light-controlling structure 114 is controlled, and the light transmitted through the first light-controlling structure 114 is irradiated onto 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. As a result, the solvent of the organic light-emitting material at the center of the ink droplet evaporates faster than at the edge. Ultimately, the solute thickness at the center is not lower than that at the edge, thus avoiding the coffee ring defect, 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 this application refers to the phenomenon where, when droplets used to form an organic material layer, i.e., ink droplets, are dropped onto the display panel 200 and spread on the substrate, the solvent evaporation rate at the edges is greater than that at the center. In order to compensate for the solvent loss at the edges, capillary flow will be generated inside the droplet from the center to the edge, carrying the solute to the edge. Finally, the solute is deposited on the substrate to form an uneven film that is thick at the edges and thin in the middle, affecting the uniformity of the organic light-emitting film layer and causing abnormalities in the display.

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

[0031] Specifically, the first housing 110 includes a first substrate 120 and a second substrate 130 disposed opposite to each other. The first light control structure 114 includes a liquid crystal layer 115, which is located between the first substrate 120 and the second substrate 130. Both the first substrate 120 and the second substrate 130 are light-transmitting structures. The second substrate 130 includes a first electrode 131, a second electrode 132, and a substrate body 133. The first electrode 131 and the second electrode 132 are respectively located on the inner surfaces of the substrate body 133 disposed opposite to each other. The first control module 150 includes a printed circuit board 151, which is connected to the substrate body 133. When the substrate body 133 is powered on, an electric field is generated between the first electrode 131 and the second electrode 132, which controls 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 requirements of the display panel 200. By adjusting the output voltage, the electric field strength formed between the first electrode 131 and the second electrode 132 can be controlled, thereby controlling the deflection angle of the liquid crystal in the liquid crystal layer 115 and achieving the purpose of controlling the amount of light transmitted. The principle of the electric field formed by the first electrode 131 and the second electrode 132 in this application is the same as the principle of forming a parallel electric field in the existing applications, and will not be described again. The first light-emitting device 140 can be a lamp 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 shines on the first housing 110 and passes through the first housing 110 to illuminate the liquid crystal layer 115 inside the first housing 110. At this time, the printed circuit board 151 outputs a corresponding voltage to the first electrode 131 and the second electrode 132 inside the substrate body 133 according to the actual heating needs of the display panel 200, so that a parallel electric field is formed between the first electrode 131 and the second electrode 132 inside the substrate body 133, and the liquid crystal layer 115 inside the first housing 110 is electrically... Under the control of the field, the liquid crystal begins to deflect, thereby controlling the amount of light transmitted to the liquid crystal layer 115; and the corresponding light passes through the liquid crystal layer 115 to irradiate the first photothermal layer 111. When the first photothermal layer 111 receives light, it generates corresponding heat, thereby heating the display panel 200, causing the ink droplets on the display panel 200 to be heated. By using active heating to control the evaporation rate of the ink droplets, the phenomenon of coffee ring defects can be improved to a certain extent, the uniformity of the organic light-emitting film layer can be improved, and the quality of the organic light-emitting display panel 200 can be guaranteed.

[0034] Furthermore, in this embodiment, the first photothermal layer 111 is laid entirely on the side of the first substrate 120 closest to the display panel 200. By laying the first photothermal layer 111 entirely, the heated area of ​​the display panel 200 is increased, so that numerous ink droplets on the display panel 200 can be heated simultaneously, thereby improving the coffee ring phenomenon formed on the display panel 200 to a certain extent.

[0035] The main components of the first photothermal layer 111 of this application may include one or more of gold nanoparticles, polydopamine nanoparticles, graphene, and iron oxide.

[0036] Figure 2 This is a schematic diagram of a second embodiment of the heating assembly of this application, as shown below. Figure 2 As shown, Figure 2 The illustrated embodiment is based on Figure 1The improvement includes a first housing 110 comprising a first substrate 120 and a second substrate 130 disposed opposite to each other, a first light control structure 114 comprising a liquid crystal layer 115 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 comprises an array substrate 134, and the first control module 150 comprises a printed circuit board 151 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 to control the amount of light transmitted into the first housing 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, and the second substrate 130 is an array substrate 134. In this embodiment, the structure of the array substrate 134 is the same as that of a conventional array substrate 134. The array substrate 134 is connected to the printed circuit board 151, and the printed circuit board 151 outputs control signals to the array substrate 134. The array substrate 134 can control the deflection of liquid crystals in different areas of the first cell 110 and the magnitude of the liquid crystal deflection angle according to the control signals.

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

[0039] Specifically, when it is necessary to heat ink droplets in a local area or certain locations of the display panel 200, light emitted by the first light-emitting device 140 can be used to illuminate the first housing 110 and pass through the first housing 110 to illuminate the liquid crystal layer 115 inside the first housing 110. At this time, the printed circuit board 151 outputs a control signal to the array substrate 134 according to the actual area or location of the display panel 200 that needs to be heated, so that the array substrate 134 controls the liquid crystal in the corresponding area of ​​the first housing 110 to deflect, while the liquid crystal in other areas does not deflect, so that light can only pass through the deflected liquid crystal area and finally illuminate the area corresponding to the first photothermal layer 111. When the first photothermal layer 111 receives light on the area of ​​the display panel 200 that needs to be heated, it will generate corresponding heat, thereby heating the area of ​​the display panel 200 that needs to be heated, so that the ink droplets in that area of ​​the display panel 200 are heated, thereby controlling the evaporation rate of the ink droplets, improving the coffee ring defect 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 require heating in different ways, this application also improves the first photothermal layer 111 to allow it to heat each ink droplet individually. The specific improvements are as follows:

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

[0042] The difference between this embodiment and the previous embodiment is that the first photothermal layer 111 has been improved in this embodiment. The first photothermal layer 111 includes a plurality of first photothermal material modules 112 arranged in an array; and each first photothermal material module 112 is independently set, with a length and width of at least 1 micrometer, and the spacing between two adjacent first photothermal material modules 112 is at least 1 micrometer; and each first photothermal material module 112 corresponds to the ink droplet ingress 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 a local area or certain locations of ink droplets on the display panel 200, light emitted from the first light-emitting device 140 can be used to illuminate the first housing 110 and pass through the first housing 110 to illuminate the liquid crystal layer 115 inside the first housing 110. At this time, the printed circuit board 151 controls the array substrate 134 according to the actual heating needs of the display panel 200, so that the array substrate 134 controls the liquid crystal in the corresponding area of ​​the first housing 110 to deflect, while the liquid crystal in other areas or locations does not deflect, so that light can only pass through the deflected liquid crystal area or location and finally illuminate the first liquid crystal in the corresponding area or location. On a photothermal material module 112, when the first photothermal material module 112 in the corresponding area receives light, it generates corresponding heat. The first photothermal materials in other areas or positions are not affected, thereby heating the designated area of ​​the display panel 200, so that the ink droplets in that area or position on the display panel 200 are heated. Since each first heating material module corresponds exactly to the position of the ink droplet, the center of the ink droplet is more easily heated. The solvent of the organic light-emitting material at the center of the ink droplet evaporates faster than that at the edge of the ink droplet. Finally, the solute thickness at the center is not lower than that at the edge, avoiding the coffee ring defect and ensuring the quality of the organic light-emitting display panel 200.

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

[0045] Furthermore, since in this embodiment, the multiple first photothermal material modules 112 are independently arranged in a matrix and have spacing between each other, the number and shape of their arrangement can be applied to organic light-emitting display panels 200 of different sizes and types; for example, they can be applied to rigid or flexible organic light-emitting display panels 200.

[0046] Figure 4 This is a schematic diagram of the fourth embodiment of the heating assembly of this application, as shown. Figure 4 As shown, a first separation layer 113 is also provided on the side of the first photothermal layer 111 near 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 breaks, separating the first photothermal layer 111 from the display panel 200.

[0047] The difference between this embodiment and the previous embodiment is that a first separation layer 113 is also provided on the first photothermal layer 111. After the first photothermal layer 111 heats up and solidifies the organic light-emitting ink droplets, the first separation layer 113 can be completely broken, so that the first photothermal layer 111 is peeled off from the display panel 200. This allows the heating device to quickly separate from the display panel 200 after heating it, which is beneficial to improving the manufacturing efficiency of the display panel 200.

[0048] On the other hand, the first separation layer 113 can also be partially broken. When the first separation layer 113 is partially broken, the first separation layer 113 in this embodiment can be made of the same substrate material as the display panel 200. For example, the first separation layer 113 can be made of polyimide material, and organic light-emitting functional layers can be sequentially formed 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 broken, with one part retained as the substrate of the display panel 200 and the other part detached from the display panel 200 along with the first light-emitting layer. This not only facilitates the separation of the heating device from the display panel 200 after heating, but also allows the first separation layer 113 to be directly used as the substrate of the display panel 200, reducing manufacturing steps, saving costs, and improving the manufacturing efficiency of the display panel 200. Moreover, since each film layer of the organic light-emitting display panel 200 is directly formed on the liquid crystal cell in this embodiment, the accuracy of the different evaporation rates 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 the fifth embodiment of the heating assembly of this application, as shown. Figure 5 As shown, the heating assembly 100 also includes a second housing 160, a second light-emitting device 170, and a second control module 180. The second housing 160 is a light-transmitting structure and is disposed on the side of the display panel 200 away from the first housing 110. A second photothermal layer 161 is disposed on the side of the second housing 160 near the display panel 200. The second light-emitting device 170 is disposed on the side of the second housing 160 away from the display panel 200. A second light-controlling structure 163 is disposed inside the second housing 160. The second light-controlling structure 163 transmits light and illuminates the second photothermal layer 161. The second control module 180 is connected to the second housing 160 and is used to adjust the second light-controlling structure 163 to control the amount of light transmitted by the second light-controlling structure 163. A support member 190 is also disposed on the side of the second housing 160 near the display panel 200. The support member 190 is connected to the display panel 200 and is used to support the second housing 160 relative to the display panel 200 at a preset height.

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

[0051] By placing the second housing 160 above the display panel 200 and the first housing 110 below the display panel 200, the first housing 110 controls the first photothermal layer 111 to heat the lower part of the display panel 200, and the second housing 160 controls the second photothermal layer 161 to heat the upper part of the display panel 200, the heating efficiency of the display panel 200 can be effectively improved, thus improving the efficiency of reducing the coffee ring phenomenon on the display panel 200.

[0052] Since the second housing 160 is positioned above the display panel 200, in order to prevent the second photothermal layer 161 on the second housing 160 from directly contacting the ink droplets on the display panel 200 and damaging the shape of the ink droplets, a support member 190 is also provided on the side of the second housing 160 near the display panel 200.

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

[0054] When the light emitted by the second light-emitting device 170 shines from the top of the second housing 160 toward the display panel 200, the light enters the interior of the second housing 160 and shines onto the first light-controlling structure 114 inside the second housing 160. The second control module 180 adjusts the second light-controlling structure 163 so that the amount of light passing through the second light-controlling structure 163 is controlled according to the actual heating requirements of the display panel 200, and the light passing through the second light-controlling structure 163 shines onto the second photothermal layer 161. The second photothermal layer 161 generates heat to varying degrees when receiving different amounts of light, causing the ink droplets on the display panel 200 to generate different amounts of heat according to their actual heating needs. This results in the organic light-emitting material solvent at the center of the ink droplet evaporating faster than at the edge, ultimately ensuring that the solute thickness at the center is not lower than at the edge. This avoids the coffee ring defect, improves the uniformity of the organic light-emitting film layer, and guarantees the quality of the organic light-emitting display panel 200. When combined with the heating of the first photothermal layer 111, it effectively improves the efficiency of heating to improve the coffee ring phenomenon.

[0055] It should be noted that, in this embodiment, since the principle by which the second housing 160 controls the second photothermal layer 161 to heat the display panel 200 is the same as the principle by which the first housing 110 controls the first photothermal layer 111 to heat the display panel 200, it will not be described again.

[0056] Figure 6 This is a schematic diagram of the sixth embodiment of the heating assembly of this application, as shown. Figure 6 As shown, Figure 6 The illustrated embodiment is based on Figure 5 In this improvement, the second photothermal layer 161 is made of a light-transmitting material; the second housing 160 near the display panel 200 is also provided with a second separation layer 164 and an encapsulation layer 165 stacked sequentially, the second separation layer 164 and the encapsulation layer 165 being disposed between the second housing 160 and the second photothermal layer 161; the support member 190 includes an encapsulating adhesive 191, one side of which is connected to the encapsulation layer 165, and the other side is connected to the display panel 200; when the display panel 200 is heated and the ink droplets are cured, the second separation layer 164 separates, and the encapsulating adhesive 191 encapsulates the encapsulation layer 165 and the second photothermal layer 161 onto 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 also sequentially disposed between the second housing 160 and the second photothermal layer 161. Furthermore, the support member 190 in this embodiment can be encapsulated with adhesive 191 and connected to the encapsulation layer 165 using the encapsulation adhesive 191.

[0058] When the second photothermal layer 161 is used to heat the top of the display panel 200, the encapsulating adhesive 191 is connected to the display panel 200, so that the second photothermal layer 161 is supported to a certain height by the encapsulating adhesive 191, avoiding ink droplets on the display panel 200, while the encapsulating adhesive 191 is used to directly encapsulate the second photothermal layer 161 and the display panel 200.

[0059] After the second photothermal layer 161 has cured the ink droplets, the second housing 160 is peeled off from the display panel 200 by the second separation layer 164, so that the encapsulation layer 165 and the second photothermal layer 161 remain on the display panel 200. This not only improves the coffee ring phenomenon of the display panel 200, but also achieves the encapsulation of the display panel 200, improves the manufacturing efficiency of the display panel 200, and saves costs.

[0060] Since the second photothermal layer 161 in this embodiment is a light-transmitting material (the main material is titanium carbide (Ti3C2Tx)MXene), it has a high visible light transmittance (87% to 95%), which has little impact on the normal display of the organic light-emitting display panel 200. Furthermore, when the organic light-emitting display panel 200 is working in a low-temperature environment, the second photothermal layer 161 is heated by the light from the display panel 200, 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 the seventh embodiment of the heating assembly of this application, as shown. Figure 7 As shown, Figure 7The illustrated embodiment is based on Figure 6 The improvement is that the second photothermal layer 161 includes multiple second photothermal material modules 162, and the positions of the multiple second photothermal material modules 162 correspond one-to-one with the positions of the multiple first photothermal material modules 112.

[0062] The difference between this embodiment and the previous embodiment is that in this embodiment, the multiple second photothermal material modules 162 on the side of the second housing 160 near the display panel 200 correspond one-to-one with the multiple first photothermal material modules 112 on the side of the first housing 110 near the display panel 200. This allows for more uniform heating when the first photothermal layer 111 and the second photothermal layer 161 are heated from above and below the display panel 200, respectively, which is beneficial for improving the uniformity of the organic light-emitting film layer of the display panel 200.

[0063] Figure 8 This is a schematic diagram of an embodiment of the display device of this application, as shown below. Figure 8 As shown in the illustration, this application also discloses a display device 10, including a display panel 200. The display device 10 further includes the aforementioned heating component 100, which is used to heat the display panel 200. When the display panel 200 is in a low-temperature operating environment, the heating component 100 heats the display panel 200, allowing it to reach a normal operating temperature. This improves the problem of poor luminous efficiency and display effect of the display panel 200 in low-temperature environments.

[0064] The display device 10 of this application is mainly for display devices 10 with organic light-emitting display panels 200, which can be devices such as mobile phones, computers, and televisions. This application does not impose specific restrictions on the type of display device 10.

[0065] However, during the manufacturing process, the display panel 200 in the display device 10 is prone to developing a coffee ring effect, which affects the quality of the display device 10.

[0066] To address the aforementioned issues, this application addresses these problems by configuring a heating component 100. When heating the display panel 200 is required, the first photothermal layer 111 of the heating component 100 is connected to the bottom of the display panel 200, allowing the heat generated by the first photothermal layer 111 to be effectively transferred to the display panel 200. When light emitted from the first light-emitting device 140 shines from the bottom of the first housing 110 towards the display panel 200, the light enters the interior of the first housing 110 and illuminates the first light-controlling structure 114 within the first housing 110. The first control module 150 adjusts the first light-controlling structure 114 according to the display panel 200's lighting conditions. The actual heating requirements of the display panel 200 are controlled by adjusting the amount of light transmitted to the first light-controlling structure 114. The light transmitted through the first light-controlling structure 114 is then directed to the first photothermal layer 111. The first photothermal layer 111 generates heat to different degrees when receiving different amounts of light, causing the ink droplets on the display panel 200 to generate different amounts of heat according to their actual heating requirements. This results in the organic light-emitting material solvent at the center of the ink droplet evaporating faster than at the edge, ensuring that the solute thickness at the center is not lower than that at the edge. This avoids the coffee ring defect, improves the uniformity of the organic light-emitting film layer, ensures the quality of the organic light-emitting display panel 200, and thus improves the quality of the display device 10.

[0067] After the display panel 200 is manufactured, the heating component 100 can be assembled with the display panel 200 and the housing of the display device 10 together, 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 and thus extend the service life of the display device 10.

[0068] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0069] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A heating assembly for heating a display panel, characterized in that, The heating assembly includes a first housing, a first light-emitting device, and a first control module; The first housing is a light-transmitting structure. A first photothermal layer is provided on the side of the first housing close to the display panel, and the first photothermal layer is connected to the display panel. A first light-emitting device is provided on the side of the first housing away from the display panel. The first light-emitting device is used to irradiate light from the bottom of the first housing toward the display panel. The first box is provided with a first light control structure, which transmits light and illuminates the first photothermal layer. The first control module is connected to the first housing and is used to adjust the first light control structure. The first light control structure includes a liquid crystal layer. The first control module controls the angle deflection of the liquid crystal in the liquid crystal layer to control the light transmission of the first light control structure.

2. The heating assembly as described in claim 1, characterized in that, The first housing includes a first substrate and a second substrate disposed opposite to each other, the first substrate being located on the side of the first housing closer to the display panel, and the second substrate being located on the side of the first housing away from the display panel; The first light-controlling structure includes a liquid crystal layer, which is located between the first substrate and the second substrate; Both the first substrate and the second substrate are 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 the inner surfaces of the substrate body that are disposed opposite to each other. The first control module includes a printed circuit board 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 as described in claim 2, characterized in that, The first photothermal layer is laid entirely on the side of the first substrate closest to the display panel.

4. The heating assembly as described in claim 1, characterized in that, The first housing includes a first substrate and a second substrate disposed opposite to each other, and the first light control structure includes a liquid crystal layer, which 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 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 transmitted into the first housing by the first light-emitting device.

5. The heating assembly as described in claim 4, characterized in that, The first photothermal layer includes a plurality of first photothermal material modules, which are arranged in an array on the first substrate; and each first photothermal material module is configured to correspond to the ink droplet ingress position on the display panel.

6. The heating assembly as described in claim 5, characterized in that, A first separation layer is also provided on the side of the first photothermal layer near the display panel. When the first photothermal layer heats and solidifies the ink droplets on the display panel, the first separation layer breaks, separating the first photothermal layer from the display panel.

7. The heating assembly as described in claim 6, characterized in that, The heating assembly also includes a second housing, a second light-emitting device, and a second control module. The second housing is a light-transmitting structure. The second housing is disposed on the side of the display panel away from the first housing. A second photothermal layer is disposed on the side of the second housing close to the display panel. The second light-emitting device is disposed on the side of the second housing away from the display panel; The second box is provided with a second light control structure, which transmits light and illuminates the second photothermal layer. The second control module is connected to the second housing and is used to adjust the second light control structure to control the amount of light transmitted through the second light control structure; The second housing is also provided with a support member on the side near the display panel. The support member is connected to the display panel and is used to support the second housing at a preset height relative to the display panel.

8. The heating assembly as claimed in 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 also stacked sequentially on the side of the second housing near the display panel, and the second separation layer and the encapsulation layer are disposed between the second housing and the second photothermal layer; The support includes an encapsulating adhesive, one side of which 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 separates, and the encapsulating adhesive encapsulates the encapsulation layer and the second photothermal layer on the display panel.

9. The heating assembly as described in claim 8, characterized in that, The second photothermal layer includes multiple second photothermal material modules, and the positions of the multiple second photothermal material modules correspond one-to-one with the positions of the multiple first photothermal material modules.

10. A display device comprising a display panel, characterized in that, The display device further includes a heating component as described in any one of claims 1 to 9, the heating component being used to heat the display panel.

Images