Display device

Abstract

The embodiment of the utility model discloses a display device. The display device comprises a display panel, a backlight module and a heating module, the backlight module comprises a back plate and a plurality of optical layers arranged on the side, close to the display panel, of the back plate. The heating module comprises at least one heating unit; at least one optical layer is provided with a heating unit for heating the display device. According to the scheme, the heating unit is arranged on the at least one optical layer, compared with the prior art, the inner cavity of the backlight module is heated, heat energy escaping from the display device can be reduced to a certain degree, and therefore the overall temperature rising efficiency of the display device is improved. Besides, a plurality of heating units can be arranged according to the heating requirement of the display device, so that the heating area of the inner cavity of the display backlight module is increased, and the overall temperature rising efficiency of the display device is improved.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display device. Background Technology

[0002] Currently, display devices are prone to response delays or even failure to display at low temperatures (around -40°C). To address this, a transparent conductive film can be placed on the side of the color filter substrate furthest from the array substrate and / or the side of the array substrate furthest from the color filter substrate. By energizing the transparent conductive film, the resistive heating effect of the film efficiently converts electrical energy into heat energy, achieving the purpose of heating the display device without affecting the transparency of the glass. However, the above method of heating the display device results in a slow overall temperature rise. A brief description of the structure of existing display devices follows:

[0003] Figure 1 A structural cross-sectional view of a display device provided for the prior art, such as... Figure 1 As shown, the display device, from top to bottom, includes: a first polarizing plate 11, a color filter substrate 12, an array substrate 13, a second polarizing plate 14, a multilayer optical layer 15 located within the display device cavity, and a backplate 16. Currently, transparent conductive films are provided on the side of the color filter substrate 12 near the first polarizing plate 11 and on the side of the array substrate 13 away from the first polarizing plate 11. As a result, the number of transparent conductive films is relatively small, and some of the heat generated by the transparent conductive films is dissipated into the external environment, resulting in relatively low heating efficiency for the display device cavity. Utility Model Content

[0004] This utility model provides a display device to improve the overall heating efficiency of the display device.

[0005] This utility model provides a display device, which includes a display panel, a backlight module, and a heating module;

[0006] The backlight module includes a back plate and a multi-layer optical layer disposed on the back plate near the display panel.

[0007] The heating module includes at least one heating unit;

[0008] At least one of the optical layers is provided with a heating unit to heat the display device.

[0009] Optionally, the optical layer includes a reflective film, a light guide plate, a first diffusion film, a first prism, a second prism, and a second diffusion film, which are sequentially stacked on the side of the back plate near the display panel.

[0010] Optionally, the heating unit includes a heating film;

[0011] The heating film covers the side of the optical layer that is close to or far from the display panel.

[0012] Optionally, the heating unit further includes a first heating wire and a plurality of second heating wires;

[0013] The second heating wires are arranged in rows or columns on the side of the optical layer away from or close to the display panel, and the first heating wire is connected to each of the second heating wires.

[0014] Optionally, the heating unit further includes multiple rectangular heating wires of different sizes;

[0015] Multiple rectangular heating wires are nested together according to their size to form a heating wire frame; wherein the size of the rectangular heating wire is greater than or equal to the inner edge of the optical layer edge region and less than or equal to the outer edge of the optical layer edge region;

[0016] The heating wire frame is located on the edge region of the optical layer on the side away from or close to the display panel.

[0017] Optionally, the heating unit further includes a rectangular heating film frame;

[0018] The rectangular heating film frame is disposed on the edge region of the optical layer on the side away from or close to the display panel; wherein, the inner edge dimension of the rectangular heating film frame is greater than or equal to the inner edge dimension of the edge region of the optical layer, and the outer edge dimension of the rectangular heating film frame is less than or equal to the outer edge dimension of the edge region of the optical layer.

[0019] Optionally, the backlight module further includes a heating control interface;

[0020] The heating control interface is connected to the heating unit and is used to control the heat generation of the heating unit.

[0021] Optionally, the edge region of the optical layer includes multiple vias;

[0022] The heating module includes multiple heating units, and the heating units located on the same side of adjacent optical layers are connected through the through holes to form a heating grid.

[0023] Optionally, the backlight module further includes a flexible circuit board;

[0024] The flexible circuit board includes a heating control module;

[0025] The heating control module is connected to the heating unit.

[0026] This invention, by incorporating a heating unit in at least one optical layer, achieves heating of the backlight module's internal cavity compared to existing technologies. Furthermore, it reduces heat dissipation from the display device to a certain extent, thereby improving the overall heating efficiency of the display device. This solution can also incorporate multiple heating units according to the display device's heating requirements, thereby increasing the heating area of ​​the backlight module's internal cavity and further enhancing the overall heating efficiency of the display device. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A structural cross-sectional view of a display device provided in the prior art;

[0029] Figure 2 A cross-sectional view of a display device provided in an embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of a heating unit provided in an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of another heating unit provided in an embodiment of the present utility model;

[0032] Figure 5 This is a schematic diagram of another heating unit provided in an embodiment of the present utility model;

[0033] Figure 6 This is a schematic diagram of another heating unit provided in an embodiment of the present utility model;

[0034] Figure 7 A schematic diagram of the structure of an optical layer provided in an embodiment of this utility model;

[0035] Figure 8 A cross-sectional view of a multi-layer optical layer with a heating unit provided in an embodiment of this utility model. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] This utility model provides a display device that can improve the overall heating efficiency of the display device. Figure 2 A structural cross-sectional view of a display device provided for an embodiment of this utility model, as shown below. Figure 2 As shown, the display device includes a display panel, a backlight module, and a heating module;

[0039] The backlight module includes a back plate 16 and a multi-layer optical layer 15 disposed on the back plate 16 near the display panel; the heating module includes at least one heating unit 21; at least one optical layer 15 is provided with a heating unit 21 to heat the display device.

[0040] The heating unit 21 can efficiently convert electrical energy into heat energy to heat the display device. The optical layer 15 can process the light emitted by the backlight of the display device, such as reflection, light scattering, changing the light path, and improving the luminous efficiency of the backlight. Figure 2 In the middle, the heating module includes two heating units 21, and the optical layer 15 is provided with two heating units 21 to heat the display device.

[0041] Specifically, one heating unit 21 is disposed on the side of the optical layer 15 closest to the display panel, and another heating unit 21 is disposed on the side of the optical layer 15 furthest from the display panel. This allows the heating units 21 to heat the inner cavity of the backlight module, which can reduce the heat energy dissipated from the display device to a certain extent, thereby improving the overall heating efficiency of the display device. In addition, the backlight module includes multiple optical layers 15, so one or more heating units 21 can be disposed on the optical layers 15 according to the heating requirements of the display device, thereby increasing the heating area of ​​the backlight module and improving the overall heating efficiency of the display device.

[0042] This embodiment of the invention, by setting a heating unit 21 in the multi-layer optical layer 15, achieves heating of the inner cavity of the backlight module compared to the prior art. This reduces the heat energy dissipated from the display device to a certain extent, thereby improving the overall heating efficiency of the display device. This solution can also set multiple heating units 21 according to the heating requirements of the display device, thereby increasing the heating area of ​​the inner cavity of the backlight module and further improving the overall heating efficiency of the display device.

[0043] Based on the above embodiments, continue to refer to Figure 2 Optionally, the optical layer 15 includes a reflective film 151, a light guide plate 152, a first diffusion film 153, a first prism 154, a second prism 155, and a second diffusion film 156, which are sequentially stacked on the side of the back plate 16 near the display panel.

[0044] The reflective film 151 reflects the light emitted by the backlight to achieve the required brightness and color. The reflected light enters the light guide plate 152, which converts the reflected light into a real surface light source. This surface light source is dispersed by the diffusion effect of the first diffuser film 153, resulting in a relatively balanced light distribution across the entire plane. The first prism 154 and the second prism 155 have a focusing effect on the light, enhancing it laterally or longitudinally. The enhanced light, whether laterally or longitudinally focused, is dispersed by the second diffuser film 156, again achieving a relatively balanced light distribution across the entire plane.

[0045] Figure 2 In the process, the heating module includes two heating units 21. A heating unit 21 is disposed on the side of the first diffusion film 153 near the display panel, and a heating unit 21 is disposed on the side of the first prism 154 near the display panel, so as to heat the display device.

[0046] The specific structure of the heating unit 21 will be described below, taking the example of the heating unit 21 being located on the side of the light guide plate 152 near the back plate:

[0047] Based on the above embodiments, optionally, Figure 3 This is a schematic diagram of the structure of a heating unit provided in an embodiment of the present utility model. Figure 3As shown, the heating unit 21 includes a heating film 211; the heating film 211 covers the side of the optical layer 15 that is close to or away from the display panel.

[0048] Among them, the heating film 211 can convert electrical energy into heat energy.

[0049] Optionally, the heating film 211 includes a transparent conductive film.

[0050] Based on the above embodiments, optionally, Figure 4 This is a schematic diagram of another heating unit provided in an embodiment of the present invention. Figure 4 As shown, the heating unit 21 also includes a first heating wire 212 and a plurality of second heating wires 213;

[0051] The second heating wires 213 are arranged in rows or columns on the side of the optical layer 15 away from or close to the display panel, and the first heating wire 212 is connected to each of the second heating wires 213.

[0052] Both the first heating wire 212 and the second heating wire 213 can convert electrical energy into heat energy.

[0053] Figure 4 In the light guide plate 152, the second heating wires 213 are arranged in a row on the side of the light guide plate 152 near the display panel, and the first heating wires 212 located in the edge area of ​​the light guide plate 152 are vertically connected to each of the second heating wires 213.

[0054] It should be noted that this solution does not limit the specific location of the first heating wire 212 on the optical layer 15, as long as the first heating wire 212 and the second heating wire 213 are located on the same side of the optical layer 15 and are vertically connected.

[0055] Optionally, the first heating wire 212 is located in the edge region of the optical layer 15, and the first heating wire 212 is perpendicularly connected to each of the second heating wires 213.

[0056] Optionally, both the first heating wire 212 and the second heating wire 213 include conductive resistance wires.

[0057] Based on the above embodiments, optionally, Figure 5 This is a schematic diagram of another heating unit provided in an embodiment of the present invention. Figure 5 As shown, the heating unit 21 also includes multiple rectangular heating wires 214 of different sizes;

[0058] Multiple rectangular heating wires 214 are nested together according to their size to form a heating wire frame; wherein, the size of the rectangular heating wire 214 is greater than or equal to the inner edge of the edge region of the optical layer 15, and less than or equal to the outer edge of the edge region of the optical layer 15;

[0059] The heating wire frame is located on the edge area of ​​the optical layer 15 on the side away from or close to the display panel.

[0060] The rectangular heating wire 214 can convert electrical energy into heat energy.

[0061] Optionally, the rectangular heating wire 214 includes a conductive resistance wire.

[0062] Based on the above embodiments, optionally, Figure 6 This is a schematic diagram of another heating unit provided in an embodiment of the present invention. Figure 6 As shown, the heating unit 21 also includes a rectangular heating film frame 215;

[0063] A rectangular heating film frame 215 is disposed on the edge region of the optical layer 15 away from or close to the display panel; wherein, the inner edge dimension of the rectangular heating film frame 215 is greater than or equal to the inner edge dimension of the edge region of the optical layer 15, and the outer edge dimension of the rectangular heating film frame 215 is less than or equal to the outer edge dimension of the edge region of the optical layer 15.

[0064] The rectangular heating film frame 215 can convert electrical energy into heat energy.

[0065] Optionally, the rectangular heating film frame 215 includes a transparent conductive film.

[0066] contrast Figures 3-6 It can be seen that, Figures 3-6 The heat generation of the heating unit 21 in the structure, from largest to smallest, is as follows: Figure 3 Heating unit 21 of the structure Figure 4 Heating unit 21 of the structure Figure 6 Heating unit 21 of the structure Figure 5 Heating unit 21 of the structure; Figures 3-6 The influence of the heating unit 21 on the optical path, from largest to smallest, is as follows: Figure 3 Heating unit 21 of the structure Figure 4 Heating unit 21 of the structure Figure 6 Heating unit 21 of the structure Figure 5 The heating unit 21 has a suitable structure. Therefore, designers can select a suitable heating unit 21 based on the specific heating requirements of the display device.

[0067] Figure 7 This is a schematic diagram of the structure of an optical layer provided in an embodiment of the present invention. Figure 8 This is a cross-sectional view of a multi-layer optical layer with a heating unit provided in an embodiment of the present invention. (See figure) Figure 7 and Figure 8 As shown, the edge region of the optical layer 15 includes a plurality of vias 157;

[0068] The heating module includes multiple heating units 21. The heating units 21 located on the same side of adjacent optical layers 15 are connected through through holes 157 to form a heating grid 216.

[0069] The heating mesh 216 allows for internal heating circulation within the backlight module cavity, making the entire backlight module cavity a heat source and thus improving the overall heating efficiency of the display device.

[0070] Optionally, based on the above embodiments, the backlight module further includes a heating control interface;

[0071] The heating control interface is connected to the heating unit and is used to control the heat generation of the heating unit.

[0072] For example, when heating the display device is required, the heating unit can be controlled to generate heat by connecting to the client system via the heating control interface. When heating the display device is not required, the heating unit can be stopped by disconnecting the heating control interface from the client system.

[0073] Optionally, based on the above embodiments, the backlight module further includes a flexible circuit board; the flexible circuit board includes a heating control module; the heating control module is connected to the heating unit.

[0074] The display device also includes a temperature sensor, and the flexible circuit board also includes a processing module. The heating control module and the temperature sensor are both connected to the processing module.

[0075] Specifically, when the temperature sensor detects that the display device temperature is within the heating temperature threshold range, the processing module will control the heating unit to generate heat through the heating control module. When the temperature sensor detects that the display device temperature is outside the heating temperature threshold range, the processing module will control the heating unit to stop generating heat through the heating control module.

[0076] The display device provided in this embodiment can be applied to electronic products in low-temperature and humid environments, such as electronic rearview mirrors, vehicle displays, and outdoor displays.

[0077] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0078] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A display device, characterized by comprising: The display panel, the backlight module and the heating module are included. The backlight module includes a back plate and a plurality of optical layers arranged on the side of the back plate close to the display panel. The heating module includes at least one heating unit. At least one of the optical layers is provided with the heating unit to heat the display device. The edge region of the optical layer includes a plurality of vias. The heating module includes a plurality of heating units, and the heating units arranged on the same side of the adjacent optical layers are connected through the vias to form a heating network.

2. The display device according to claim 1, wherein The optical layer includes a reflective film, a light guide plate, a first diffusion film, a first prism, a second prism and a second diffusion film arranged in sequence on the side of the back plate close to the display panel.

3. The display device according to claim 1, wherein The heating unit includes a heating film. The heating film covers the side of the optical layer close to or away from the display panel.

4. The display device according to claim 1, wherein The heating unit further includes a first heating wire and a plurality of second heating wires. The second heating wires are arranged in a row or a column on the side of the optical layer away from or close to the display panel, and the first heating wire is connected with each second heating wire.

5. The display device according to claim 1, wherein The heating unit further includes a plurality of rectangular heating wires with different sizes. A plurality of the rectangular heating wires are nested in one body according to the size to form a heating wire frame; wherein the size of the rectangular heating wire is greater than or equal to the inner edge of the edge region of the optical layer and less than or equal to the outer edge of the edge region of the optical layer. The heating wire frame is arranged on the edge region of the side of the optical layer away from or close to the display panel.

6. The display device according to claim 1, wherein The heating unit further includes a rectangular heating film frame. The rectangular heating film frame is arranged on the edge region of the side of the optical layer away from or close to the display panel; wherein the inner edge size of the rectangular heating film frame is greater than or equal to the inner edge size of the edge region of the optical layer, and the outer edge size of the rectangular heating film frame is less than or equal to the outer edge size of the edge region of the optical layer.

7. The display device according to any one of claims 1 to 6, wherein The backlight module further includes a heating control interface. The heating control interface is connected with the heating unit, and the heating control interface is used to control the heat production of the heating unit.

8. The display device according to any one of claims 1 to 6, wherein The backlight module further includes a flexible circuit board. The flexible circuit board includes a heating control module. The heating control module is connected with the heating unit.

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