Display device

Abstract

The utility model discloses a display device, which comprises a display module and a liquid crystal display panel, the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer, the second substrate is positioned on one side of the first substrate, the liquid crystal layer is positioned between the first substrate and the second substrate, and the liquid crystal display panel comprises a plurality of heating areas; the heating layer is located on the side, facing the liquid crystal layer, of the second substrate, the heating layer comprises a plurality of heating wiring parts in one-to-one correspondence with the heating areas, and orthographic projections of the heating wiring parts on the second substrate are arranged around the corresponding heating areas; the temperature detection unit is used for detecting temperature information of the environment where the liquid crystal display panel is located; and the control unit is electrically connected with the heating layer and is in signal connection with the temperature detection unit, and the control unit is used for adjusting the voltage applied to the heating layer according to the temperature information. The display device can solve the problem of color dragging and trailing caused by low response speed of liquid crystal molecules at low temperature, and the user experience feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and particularly relates to a display device. Background Art

[0002] The problems of color smear and trailing in a liquid crystal display panel are caused by the viscosity of liquid crystal molecules in the liquid crystal layer. When the data voltages of two consecutive frames are different, the liquid crystal molecules in the liquid crystal layer need to change the rotation angle. Due to the viscosity of the liquid crystal molecules, the liquid crystal molecules cannot rotate to the corresponding angles within the time of two consecutive frames, so the subjective phenomena of color smear and trailing are displayed.

[0003] The viscosity coefficient of the liquid crystal molecules in the liquid crystal layer is related to the high and low ambient temperature. The lower the ambient temperature, the greater the viscosity coefficient of the liquid crystal molecules, the slower the response speed of the liquid crystal molecules to rotate, and the longer the response time. Therefore, the lower the ambient temperature, the more serious the problems of color smear and trailing in the liquid crystal display panel. Summary of the Utility Model

[0004] The utility model provides a display device, which can solve the problems of color smear and trailing caused by the slow response speed of liquid crystal molecules at low temperature and improve the user experience.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A display device, comprising:

[0007] A display module, the display module includes a liquid crystal display panel, the liquid crystal display panel includes a first substrate, a second substrate and a liquid crystal layer, the second substrate is located on one side of the first substrate, the liquid crystal layer is located between the first substrate and the second substrate, and the liquid crystal display panel includes a plurality of heating zones;

[0008] A heating layer, the heating layer is located on the side of the second substrate facing the liquid crystal layer, the heating layer includes a plurality of heating trace parts corresponding to the plurality of heating zones one by one, and the orthographic projection of the heating trace part on the second substrate surrounds the corresponding heating zone;

[0009] A temperature detection unit, the temperature detection unit is used to detect the temperature information of the environment where the liquid crystal display panel is located;

[0010] A control unit, the control unit is electrically connected to the heating layer and signal-connected to the temperature detection unit, and the control unit is used to adjust the voltage applied to the heating layer according to the temperature information.

[0011] Optionally, the first substrate includes a first substrate and a light filtering layer;

[0012] The first substrate is disposed opposite to the second substrate;

[0013] The filter layer is located on a side of the first substrate facing the second substrate. The filter layer includes a plurality of filter units distributed in an array, and at least one of the filter units is included in the heating region.

[0014] Optionally, the first substrate further includes a black matrix. The black matrix is located on a side of the first substrate facing the second substrate, and the black matrix includes a plurality of openings corresponding one-to-one to the filter units;

[0015] The filter unit is located within the corresponding opening;

[0016] The heating layer is located on a side of the black matrix facing away from the first substrate, and a positive projection of the black matrix on the first substrate covers a positive projection of the plurality of heating trace portions on the first substrate.

[0017] Optionally, the heating trace portion has a plurality of corners.

[0018] Optionally, the heating trace portion has a zigzag trace.

[0019] Optionally, the display module further includes a backlight, and the backlight is located on a side of the second substrate facing away from the first substrate;

[0020] The control unit is located on a side of the backlight facing away from the liquid crystal display panel;

[0021] The temperature detection unit is located on a side of the display module facing away from the control unit.

[0022] Optionally, the liquid crystal display panel is divided into a display area and a non-display area disposed around the display area, and the display area includes the plurality of heating regions;

[0023] The display device further includes a front shell. The front shell is located on a side of the display module facing away from the control unit, and a positive projection of the front shell on the liquid crystal display panel does not overlap with the display area;

[0024] The temperature detection unit is located between the front shell and the display module.

[0025] Optionally, the heating layer further includes a connection trace portion and at least one first connection terminal;

[0026] The plurality of heating trace portions are electrically connected to the connection trace portion, and the connection trace portion is electrically connected to the at least one first connection terminal;

[0027] The second substrate includes a second substrate and a metal wiring layer. The second substrate is disposed opposite to the first substrate. The metal wiring layer is located on the side of the first substrate facing the liquid crystal layer. The metal wiring layer includes at least one second connection terminal. The at least one second connection terminal corresponds to the at least one first connection terminal one by one. The second connection terminal is correspondingly connected to the first connection terminal through a conductive mechanism;

[0028] The control unit is electrically connected to the at least one second connection terminal.

[0029] Optionally, the conductive mechanism includes a support and a conductive ball;

[0030] The support is supported between the first substrate and the second substrate;

[0031] The conductive ball is doped in the support to electrically connect the first connection terminal and the second connection terminal.

[0032] Optionally, the control unit is configured to:

[0033] When the temperature detected by the temperature detection unit is greater than a preset temperature, control the voltage applied to the heating layer to be zero;

[0034] When the temperature detected by the temperature detection unit is less than or equal to the preset temperature, control the voltage applied to the heating layer to be a preset voltage value, and the preset voltage value is greater than zero.

[0035] The present invention provides a display device. In this display device, the temperature detection unit can monitor the temperature of the environment where the liquid crystal display panel is located in real time. When the temperature detection unit detects that the ambient temperature is too low, the control unit can control a certain voltage to be applied to the heating layer. The heating wire portion in the heating layer can heat the liquid crystal layer in the corresponding heating area, enabling the temperature of the liquid crystal layer to increase, supplementing the temperature of the liquid crystal display panel at low temperatures, reducing the viscosity coefficient of the liquid crystal molecules in the liquid crystal layer, improving the response speed of the liquid crystal molecules, reducing the response time of the liquid crystal molecules, and thus can solve the problem of color dragging and tailing caused by slow response speed of liquid crystal molecules at low temperatures, and improve the user experience. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of a display device in the related art;

[0037] Figure 2 It is a schematic structural diagram of a display device provided by an embodiment of the present invention;

[0038] Figure 3 It is a schematic structural diagram of a liquid crystal display panel provided by an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of a first substrate provided by an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of a first substrate provided by an embodiment of the present invention;

[0041] Figure 6 Schematic diagram of a first substrate provided by an embodiment of the present invention;

[0042] Figure 7 is Figure 6 Cross-sectional view along the dashed line CC in;

[0043] Figure 8 Schematic diagram of a first substrate provided by an embodiment of the present invention;

[0044] Figure 9 Schematic diagram of a display device provided by an embodiment of the present invention;

[0045] Figure 10 Schematic diagram of a display device provided by an embodiment of the present invention;

[0046] Figure 11 Schematic diagram of a second substrate provided by an embodiment of the present invention;

[0047] Figure 12 Cross-sectional view of a liquid crystal display panel provided by an embodiment of the present invention;

[0048] Figure 13 Cross-sectional view of a liquid crystal display panel provided by an embodiment of the present invention;

[0049] Figure 14 Schematic diagram of a display device provided by an embodiment of the present invention;

[0050] Figure 15 Flowchart of a control method for a display device provided by an embodiment of the present invention.

[0051] Icon:

[0052] 1 - Liquid crystal display panel; 11 - First substrate; 111 - First substrate; 112 - Black matrix; 113 - Filter unit; 12 - Second substrate; 121 - Second substrate; 122 - Metal trace layer; 1221 - Second connection terminal; 123 - Insulating layer; 13 - Liquid crystal layer; 2 - Heating layer; 21 - Heating trace part; 22 - Connection trace part; 23 - First connection terminal; 3 - Temperature detection unit; 4 - Control unit; 41 - Main board; 42 - Tcon board; 43 - Source board; 44 - COF; 5 - Backlight; 6 - Front shell; AA - Display area; BB - Non - display area; a - Heating area. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0054] Due to advantages such as being light, thin, low - radiation, and capable of high - definition display, liquid crystal display panels are widely used as display screens for display devices such as laptop computers, televisions, and mobile phones.

[0055] As Figure 1 shown, Figure 1 is a schematic structural diagram of a display device in the related art. Specifically, the display device may have a backlight 01 and a liquid crystal display panel 02 located on the light - emitting side of the backlight 01. The backlight 01 is used to provide light for the liquid crystal display panel 02. The liquid crystal display panel 02 can control the change in the rotation state of the liquid crystal molecules in the liquid crystal layer 021 by adjusting the voltage applied to the liquid crystal layer 021, thereby realizing the display of the picture.

[0056] When the liquid crystal display panel 02 displays a picture, due to the viscosity of the liquid crystal molecules, the liquid crystal molecules cannot rotate to the corresponding angles within the time of two consecutive frames, resulting in the phenomenon of color dragging and tailing.

[0057] The viscosity coefficient of the liquid crystal molecules in the liquid crystal layer 021 is related to the high and low of the ambient temperature. The lower the ambient temperature, the greater the viscosity coefficient of the liquid crystal molecules, the slower the response speed of the rotation of the liquid crystal molecules, and the longer the response time. Therefore, the lower the ambient temperature, the more serious the color dragging and tailing problems of the liquid crystal display panel 02.

[0058] To solve the above - mentioned technical problems, the present invention provides a display device. As Figure 2 , Figure 3 and Figure 4 shown, it includes:

[0059] A display module, the display module includes a liquid crystal display panel 1, the liquid crystal display panel 1 includes a first substrate 11, a second substrate 12 and a liquid crystal layer 13, the second substrate 12 is located on one side of the first substrate 11, and the liquid crystal layer 13 is located between the first substrate 11 and the second substrate 12. The liquid crystal display panel 1 includes a plurality of heating zones a; as Figure 3 shown, it is a schematic structural diagram of a liquid crystal display panel 1 provided by an embodiment of the present invention;

[0060] A heating layer 2, the heating layer 2 is located on the side of the second substrate 12 facing the liquid crystal layer 13. The heating layer 2 includes a plurality of heating trace portions 21 corresponding one-to-one to the plurality of heating zones a, and the orthographic projection of the heating trace portions 21 on the second substrate 12 is arranged around the corresponding heating zone a; as Figure 4 shown, it is a schematic structural diagram of a first substrate 11 provided by an embodiment of the present invention;

[0061] A temperature detection unit 3, the temperature detection unit 3 is used to detect the temperature information of the environment where the liquid crystal display panel 1 is located; as Figure 2 shown, it is a schematic structural diagram of a display device provided by an embodiment of the present invention;

[0062] A control unit 4, the control unit 4 is electrically connected to the heating layer 2 and signal-connected to the temperature detection unit 3. The control unit 4 is used to adjust the voltage applied to the heating layer 2 according to the temperature information.

[0063] In the display device provided by the embodiment of the present invention, the temperature detection unit 3 can monitor the temperature of the environment where the liquid crystal display panel 1 is located in real time. When the temperature detection unit 3 detects that the ambient temperature is too low, the control unit 4 can control a certain voltage to be applied to the heating layer 2. The heating trace portions 21 in the heating layer 2 can heat the liquid crystal layer 13 in the corresponding heating zone a, which can increase the temperature of the liquid crystal layer 13, supplement the temperature of the liquid crystal display panel 1 at low temperature, reduce the viscosity coefficient of the liquid crystal molecules in the liquid crystal layer 13, improve the response speed of the liquid crystal molecules, reduce the response time of the liquid crystal molecules, and thus can solve the problem of color dragging and tailing caused by the slow response speed of the liquid crystal molecules at low temperature, and improve the user experience.

[0064] In the embodiment of the present invention, the first substrate 11 can be a color filter substrate, and the second substrate 12 can be an array substrate; the array substrate and the color filter substrate are arranged opposite to each other, and the liquid crystal layer 13 is located between the array substrate and the color filter substrate.

[0065] In the embodiment of the present invention, the display module further includes a backlight, and the liquid crystal display panel 1 is located on the light-emitting side of the backlight. As Figure 4As shown, the liquid crystal display panel 1 can be divided into a display area AA and a non-display area BB. The display area AA can include a plurality of sub-pixel areas distributed in an array. The light emitted by the backlight source irradiates the liquid crystal display panel 1, and the rotation of the liquid crystal molecules in each sub-pixel area of the liquid crystal display panel 1 can adjust the amount of light passing through that area.

[0066] Among them, the array substrate can apply a voltage to the liquid crystal molecules in each sub-pixel area to separately adjust the rotation state of the liquid crystal molecules in each sub-pixel area, thereby realizing the adjustment of the display brightness of each sub-pixel area. The color filter substrate can filter the light passing through the liquid crystal layer 13 to achieve color display of the picture.

[0067] Specifically, the liquid crystal display panel 1 can further include a sealant frame. The sealant frame is disposed between the first substrate 11 and the second substrate 12 to support and connect the first substrate 11 and the second substrate 12. The sealant frame, the first substrate 11 and the second substrate 12 jointly enclose a liquid crystal cell in a sealed state. The liquid crystal molecules are filled and distributed in the liquid crystal cell to form a liquid crystal layer 13. The sealant frame is disposed in the non-display area BB of the liquid crystal display panel 1.

[0068] Specifically, the display module can further include a first polarizer and a second polarizer. The first polarizer is located on the side of the first substrate 11 away from the second substrate 12, and the second polarizer is located on the side of the second substrate 12 away from the first substrate 11. The polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer. By the first polarizer and the second polarizer, the direction of the transmitted polarized light can be controlled to realize functions such as image display, brightness adjustment, and contrast adjustment.

[0069] Specifically, as Figure 5 、 Figure 6 and Figure 7 shown, Figure 5 、 Figure 6 is a schematic structural diagram of a first substrate 11 provided by an embodiment of the present invention, Figure 7 is Figure 6 a cross-sectional view along the dotted line CC in

[0070] Among them, the first substrate 11 can include a first substrate 111 and a filter layer. Wherein, the first substrate 111 is disposed opposite to the second substrate 12; the filter layer is located on the side of the first substrate 111 facing the second substrate 12. The filter layer includes a plurality of filter units 113 distributed in an array, and the heating area a can have at least one filter unit 113.

[0071] The heating area a of the liquid crystal display panel 1 may have at least one light filtering unit 113, such as Figure 5 and Figure 6 shown. That is, one heating area a may correspond to at least one sub-pixel area. By means of one heating trace portion 21, the liquid crystal molecules in at least one sub-pixel area can be heated, which can increase the overall temperature of the liquid crystal layer 13 in the liquid crystal display panel 1 at low temperatures and solve the problem of color dragging and tailing of the liquid crystal display panel 1 at low temperatures.

[0072] The light filtering layer may include light filtering units 113 of three colors, namely a red light filtering unit, a green light filtering unit, and a blue light filtering unit. Among the multiple light filtering units 113 arranged in an array, along the row direction in which the light filtering units 113 are arranged, the colors of every three adjacent light filtering units 113 may be different, and along the column direction in which the light filtering units 113 are arranged, the colors of each column of light filtering units 113 are the same.

[0073] That is to say, among the multiple sub-pixel areas arranged in an array of the liquid crystal display panel 1, along the row direction in which the sub-pixel areas are arranged, every three adjacent sub-pixel areas may form a pixel area. By adjusting the colors displayed by each pixel area in each frame of the picture, color display can be achieved.

[0074] In a possible implementation manner, multiple heating areas a of the liquid crystal display panel 1 may correspond to multiple pixel areas one by one, such as Figure 5 shown. That is, each heating trace portion 21 in the heating layer 2 can heat a corresponding pixel area. A pixel area has three different-color light filtering units 113 adjacent to each other in sequence, which can ensure the heating effect of the heating trace portion 21 in the heating layer 2 on the liquid crystal layer 13.

[0075] In a possible implementation manner, multiple heating areas a of the liquid crystal display panel 1 may also correspond to multiple sub-pixel areas one by one, such as Figure 6 shown. That is, each heating trace portion 21 in the heating layer 2 can heat a corresponding sub-pixel area. A sub-pixel area has one light filtering unit 113, which can further ensure the heating effect of the heating trace portion 21 in the heating layer 2 on the liquid crystal layer 13 and ensure uniform heating of each area of the liquid crystal layer 13.

[0076] In the embodiment of the present utility model, the heating layer 2 is located on the side of the first substrate 11 facing the liquid crystal layer 13, which can make the heating layer 2 be arranged adjacent to the liquid crystal layer 13 and ensure the heating effect of the heating layer 2 on the liquid crystal layer 13.

[0077] Moreover, since the first substrate 11 is a color filter substrate and has fewer metal traces than the array substrate, disposing the heating layer 2 on the color filter substrate can facilitate the routing of the heating trace portion 21 and avoid interference of the heating traces in the heating layer 2 with the signals transmitted by the array substrate.

[0078] Specifically, the material of the heating layer 2 can be copper or other conductive metal materials, which is not limited herein and is determined according to actual circumstances.

[0079] In the embodiment of the present invention, as Figure 5 , Figure 6 and Figure 7 shown, the first substrate 11 may further include a black matrix 112. The black matrix 112 is located on the side of the first substrate 111 facing the second substrate 12. The black matrix 112 includes a plurality of openings corresponding one-to-one to the filter units 113; the filter units 113 are located in the corresponding openings; the heating layer 2 is located on the side of the black matrix 112 facing away from the first substrate 111, and the orthographic projection of the black matrix 112 on the first substrate 111 covers the orthographic projection of the plurality of heating trace portions 21 on the first substrate 111.

[0080] In the above first substrate 11, the black matrix 112 can separate any two adjacent sub-pixel regions, which can avoid crosstalk between the lights of the two adjacent sub-pixel regions and optimize the display effect of the liquid crystal display panel 1.

[0081] Among them, since the heating layer 2 is located on the side of the black matrix 112 facing away from the first substrate 111 and the orthographic projection of the black matrix 112 on the first substrate 111 covers the orthographic projection of the plurality of heating trace portions 21 on the first substrate 111, it can avoid the influence of the heating trace portion 21 on the light transmittance of the liquid crystal display panel 1, and reduce the reflection of the metal traces on the external ambient light, thereby improving the display effect of the liquid crystal display panel 1.

[0082] In the embodiment of the present invention, the heating trace portion 21 may have a plurality of corners. Utilizing the charge accumulation effect at the corner positions of the metal traces can increase the heat generation of the metal traces, which is beneficial to increasing the temperature of the liquid crystal display panel 1, and further improving the response time of the liquid crystal molecules in the liquid crystal layer 13.

[0083] For example, as Figure 5 and Figure 6 shown, the heating area a of the liquid crystal display panel 1 may be rectangular, the heating trace portion 21 is arranged around the rectangular heating area a, the heating trace portion 21 may also be rectangular, and the heating trace portion 21 may have four corners; or the number of corners of the heating trace portion 21 is greater than four corners, which is beneficial to increasing the heat generation of the metal traces.

[0084] Specifically, as Figure 8 shown,Figure 8 As shown in the structural schematic diagram of a first substrate 11 provided by an embodiment of the present invention, the heating trace portion 21 can be in a zigzag trace. By arranging the heating trace portion 21 in a zigzag trace, the number of corners of the heating trace portion 21 can be increased. Utilizing the charge accumulation effect at the corners of the technical traces, the heat generation of the metal traces can be improved. Optionally, the trace shape of the heating trace portion 21 can be unrestricted here and determined according to the actual situation.

[0085] In an embodiment of the present invention, as Figure 9 shown, Figure 9 As shown in the structural schematic diagram of a display device provided by an embodiment of the present invention, the display module further includes a backlight 5, and the backlight 5 is located on the side of the second substrate 12 away from the first substrate 11; the control unit 4 can be located on the side of the backlight 5 away from the liquid crystal display panel 1; the temperature detection unit 3 can be located on the side of the display module away from the control unit 4.

[0086] Specifically, the backlight 5 can be a side - entry backlight or a direct - lit backlight, and the backlight 5 has a light bar or a light board for emitting light; the control unit 4 can control the light source on the light bar or the light board in the backlight 5 to emit light, and the light source can be an LED lamp.

[0087] As Figure 10 shown, Figure 10 As shown in the connection structural schematic diagram of a display device provided by an embodiment of the present invention, the control unit 4 can include a main board 41, a Tcon board 42 (timing controller), etc. The main board 41 is connected to the Tcon board 42, and the Tcon board 42 is connected to the liquid crystal display panel 1. The Tcon board 42 can convert the video signal obtained from the main board 41 into the data signal format required by the data driving circuit. The main board 41 is connected to the light board in the backlight 5 to provide an electrical signal for the light bar in the backlight, and thus the display module can display a picture.

[0088] Specifically, during the process of the display device displaying a picture, the main board 41, the Tcon board 42, and the light bar in the backlight will all generate heat. By arranging the temperature detection unit 3 on the side of the display module away from the control unit 4, the temperature detection unit 3 can be far away from the control unit 4 and the heat sources of the backlight lamp, so that the data detected by the temperature detection unit 3 is closer to the ambient temperature.

[0089] Specifically, the liquid crystal display panel 1 is divided into a display area AA and a non - display area BB surrounding the display area AA. The display area AA includes a plurality of heating areas a; as Figure 2 shown, the display device can further include a front shell 6. The front shell 6 is located on the side of the display module away from the control unit 4, and the orthographic projection of the front shell 6 on the liquid crystal display panel 1 does not overlap with the display area AA; the temperature detection unit 3 can be located between the front shell 6 and the display module.

[0090] In the above display device, multiple heating zones a belong to the display area AA of the liquid crystal display panel 1. The heating trace part 21 does not heat the non-display area BB of the liquid crystal display panel 1. The position of the front shell 6 can be opposite to the non-display area BB of the liquid crystal display panel 1 and not opposite to the display area AA of the liquid crystal display panel 1. The temperature detection unit 3 is located between the front shell 6 and the display module, which can not only avoid the influence of heat sources such as the control unit 4 and the backlight on the temperature detection unit 3, but also avoid the influence of heating the liquid crystal display panel 1 on the temperature detection unit 3.

[0091] Specifically, the material of the above front shell 6 can be plastic or other materials, which is not limited here and depends on the actual situation.

[0092] The above temperature detection unit 3 can be a temperature sensor. The temperature sensor can be connected to the main board 41 and transmit the detected temperature signal of the environment where the liquid crystal display panel 1 is located to the main board 41.

[0093] In the embodiment of the present invention, as Figures 4 to 6 and Figure 8 shown, the above heating layer 2 can further include a connection trace part 22 and at least one first connection terminal 23; multiple heating trace parts 21 are electrically connected to the connection trace part 22, and the connection trace part 22 is electrically connected to at least one first connection terminal 23;

[0094] As Figure 11 and Figure 12 shown, Figure 11 is a schematic structural diagram of a second substrate 12 provided by an embodiment of the present invention, Figure 12 is a cross-sectional view of a liquid crystal display panel 1 provided by an embodiment of the present invention; the second substrate 12 can include a second substrate 121 and a metal trace layer 122. The second substrate 121 is disposed opposite to the first substrate 11, and the metal trace layer 122 is located on the side of the first substrate 11 facing the liquid crystal layer 13. The metal trace layer 122 includes at least one second connection terminal 1221. At least one second connection terminal 1221 corresponds to at least one first connection terminal 23 one by one. The second connection terminal 1221 is correspondingly connected to the first connection terminal 23 through a conductive mechanism; the control unit 4 is electrically connected to at least one second connection terminal 1221.

[0095] In the above display device, the heating trace part 21 on the first substrate 11 is connected to the first connection terminal 23 located in the non-display area BB through the connection trace part 22. The first connection terminal 23 on the first substrate 11 is conducted to the second connection terminal 1221 on the second substrate 12 through a conductive mechanism. The control unit 4 is connected to the second connection terminal 1221 on the second substrate 12, which can realize the in-plane electrical connection between the control unit 4 and the liquid crystal display panel 1.

[0096] Specifically, as Figure 8 shown, the above-mentioned connection trace portion 22 and the first connection terminal 23 can be disposed at the lower edge of the liquid crystal display panel 1. The connection trace portion 22 can include at least one connection trace, and the connection trace can extend along a first direction, and the first direction is the row direction in which the sub-pixel regions are arranged. Figure 8 In [reference], the connection trace portion 22 includes a plurality of connection traces, and the plurality of connection traces are electrically connected to each other.

[0097] As Figure 8 shown, the above-mentioned heating layer 2 can have a plurality of first connection terminals 23, and the plurality of first connection terminals 23 can be arranged along a first direction, and the first direction can be the row direction in which the sub-pixel regions are arranged.

[0098] In the embodiment of the present invention, the first substrate 11 can be an array substrate, and the first substrate 11 can specifically include a second substrate 121, a driving circuit layer, and a pixel electrode layer.

[0099] Among them, the driving circuit layer is located on one side of the second substrate 121. The driving circuit layer can have a plurality of gate lines, a plurality of data lines, and a plurality of pixel driving units. The plurality of gate lines and the plurality of data lines are arranged crosswise, and a plurality of sub-pixel regions are defined by the plurality of gate lines and the plurality of data lines. The plurality of pixel driving units are arranged in an array, and each pixel driving unit is located at the intersection of the gate line and the data line and is connected to the gate line and the data line; the pixel driving unit can be a driving circuit such as 2T1C, 3T1C, 5T2C, etc.

[0100] The pixel electrode layer is located on the side of the driving circuit layer away from the second substrate 121. The pixel electrode layer can include a plurality of pixel electrodes arranged in an array, and the plurality of pixel electrodes are connected to the plurality of pixel driving units in one-to-one correspondence.

[0101] Specifically, as Figure 14 shown, Figure 14 is a schematic structural diagram of a display device provided by an embodiment of the present invention. The control unit 4 further includes a source board 43 (source driver board). One end of the source board 43 is connected to the Tcon board 42, and the other end can be connected to a plurality of data lines in the liquid crystal display panel 1 through a chip on film (COF) to provide driving signals for the plurality of data lines.

[0102] Among them, the data lines can be located in the above-mentioned metal trace layer 122. The second connection terminal 1221 can be disposed on the same layer as the data lines. The source board 43 can be connected to the second connection terminal 1221 through a chip on film (COF) 44 to realize the connection between the control unit 4 and the second connection terminal 1221, and further realize that the control unit 4 applies a voltage to the heating trace portion 21 of the heating layer 2 on the first substrate 11.

[0103] Specifically, as Figure 13 shown, Figure 13 FIG. 5 is a cross-sectional view of a liquid crystal display panel 1 provided by an embodiment of the present invention. The above-mentioned conductive mechanism may include a support and conductive balls; the support is supported between the first substrate 11 and the second substrate 12; the conductive balls are doped in the support to electrically connect the first connection terminal 23 and the second connection terminal 1221.

[0104] In the above-mentioned conductive mechanism, the support may be made of fiber or other materials, which is not limited here and depends on the actual situation.

[0105] The above-mentioned conductive balls may be gold balls or spheres made of other materials, which is not limited here and depends on the actual situation.

[0106] Specifically, the support mechanism may be disposed outside the sealant frame to avoid affecting the display effect of the liquid crystal display panel 1.

[0107] Specifically, as Figure 12 and Figure 13 shown, in the first substrate 11, an insulating layer 123 is further provided on the side of the metal trace layer 122 facing away from the second substrate 121. The support mechanism may be connected to the corresponding second connection terminal 1221 through a through hole in the insulating layer 123.

[0108] In an embodiment of the present invention, the control unit 4 may be used for:

[0109] When the temperature detected by the temperature detection unit 3 is greater than the preset temperature, controlling the voltage applied to the heating layer 2 to be zero;

[0110] When the temperature detected by the temperature detection unit 3 is less than or equal to the preset temperature, controlling the voltage applied to the heating layer 2 to be a preset voltage value, and the preset voltage value is greater than zero.

[0111] In the above-mentioned display device, according to the temperature of the environment where the liquid crystal display panel 1 is located detected by the temperature detection unit 3, when the detected temperature is greater than the preset temperature, that is, the temperature of the environment where the liquid crystal display panel 1 is located is within a suitable range, the response time of the liquid crystal molecules in the liquid crystal layer 13 to rotate is normal, and the problem of color dragging and tailing of the liquid crystal display panel 1 during display will not occur. The control unit 4 may not apply a voltage to the heating layer 2;

[0112] When the detected temperature is less than or equal to the preset temperature, that is, when the temperature of the environment where the liquid crystal display panel 1 is located is too low, the viscosity coefficient of the liquid crystal molecules in the liquid crystal layer 13 will be too large, and the response time of the liquid crystal molecules in the liquid crystal layer 13 to rotate will be long, which will cause the problem of color dragging and tailing of the liquid crystal display panel 1 when displaying an image.

[0113] At this time, the control unit 4 can control the application of a preset voltage value to the heating layer 2, so that multiple heating trace portions 21 of the heating layer 2 actively heat the liquid crystal layer 13 of the liquid crystal display panel 1. The viscosity coefficient of the liquid crystal molecules in the liquid crystal layer 13 decreases, and the response time is shortened, solving the problem of color dragging and tailing when the liquid crystal display panel 1 displays an image.

[0114] Among them, the determination process of the preset voltage value can be as follows: First, test the liquid crystal display panel at different temperatures, and determine that the ambient temperature when the color dragging and tailing condition exceeds the acceptable level is t °C; then, gradually increase the voltage value applied to the heating layer in the liquid crystal display panel from 0V until the color dragging and tailing state is optimized to the acceptable level at the ambient temperature of t °C.

[0115] The embodiment of the present invention also provides a control method for a display device, applying any one of the display devices provided in the above technical solutions, such as Figure 15 shown Figure 15 is a flowchart of a control method for a display device provided in this embodiment, specifically including the following steps:

[0116] S1501: Obtain the external ambient temperature;

[0117] S1502: When the external ambient temperature is greater than the preset temperature, control the voltage applied to the heating layer to be zero;

[0118] S1503: When the external ambient temperature is less than or equal to the preset temperature, control the voltage applied to the heating layer to be a preset voltage, and the preset voltage is greater than zero.

[0119] In the control method of the display device provided in this embodiment, when it is detected that the external ambient temperature is too low, the application of a preset voltage to the heating layer can be controlled. Multiple heating trace portions in the heating layer can heat each area of the liquid crystal layer, enabling the temperature of the liquid crystal layer to rise, supplementing the temperature of the liquid crystal display panel at low temperatures, reducing the viscosity coefficient of the liquid crystal molecules in the liquid crystal layer, increasing the response speed of the liquid crystal molecules, reducing the response time of the liquid crystal molecules, and thus solving the problem of color dragging and tailing caused by the slow response speed of the liquid crystal molecules at low temperatures, improving the user experience.

[0120] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A display device, characterized in that: include: A display module, wherein the display module comprises a liquid crystal display panel, wherein the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the second substrate is located on one side of the first substrate, the liquid crystal layer is located between the first substrate and the second substrate, and the liquid crystal display panel comprises a plurality of heating areas; A heating layer, the heating layer is located on a side of the second substrate facing the liquid crystal layer, the heating layer comprises a plurality of heating wiring portions corresponding to the plurality of heating areas one by one, and the orthographic projections of the heating wiring portions on the second substrate are arranged around the corresponding heating areas; A temperature detection unit, the temperature detection unit is used to detect temperature information of the environment where the liquid crystal display panel is located; A control unit is electrically connected to the heating layer and is signal-connected to the temperature detection unit, and is used for adjusting a voltage applied to the heating layer according to the temperature information.

2. The display device according to claim 1, characterized in that The first substrate comprises a first substrate and a filter layer; The first substrate is arranged opposite to the second substrate; The filter layer is located on the side of the first substrate facing the second substrate, the filter layer includes a plurality of filter units distributed in an array, and the heating area has at least one filter unit.

3. The display device according to claim 2, characterized in that: The first substrate further includes a black matrix, the black matrix is ​​located on a side of the first substrate facing the second substrate, and the black matrix includes a plurality of openings corresponding to the filter units one by one; The filter unit is located in the corresponding opening; The heating layer is located on a side of the black matrix away from the first substrate, and the orthographic projection of the black matrix on the first substrate covers the orthographic projections of the plurality of heating wiring portions on the first substrate.

4. The display device according to claim 1, characterized in that The heating wiring portion has a plurality of corners.

5. The display device according to claim 4, characterized in that: The heating wiring portion is in a zigzag shape.

6. The display device according to claim 1, characterized in that: The display module further includes a backlight source, and the backlight source is located on a side of the second substrate away from the first substrate; The control unit is located on a side of the backlight source away from the liquid crystal display panel; The temperature detection unit is located at a side of the display module away from the control unit.

7. The display device according to claim 5, characterized in that: The liquid crystal display panel is divided into a display area and a non-display area arranged around the display area, and the display area includes the plurality of heating areas; The display device further comprises a front shell, the front shell being located on a side of the display module away from the control unit, and the orthographic projection of the front shell on the liquid crystal display panel having no overlap with the display area; The temperature detection unit is located between the front shell and the display module.

8. The display device according to claim 1, characterized in that: The heating layer further comprises a connecting wiring portion and at least one first connecting terminal; The plurality of heating wiring portions are electrically connected to the connecting wiring portion, and the connecting wiring portion is electrically connected to the at least one first connecting terminal; The second substrate comprises a second substrate and a metal wiring layer, the second substrate is arranged opposite to the first substrate, the metal wiring layer is located on a side of the first substrate facing the liquid crystal layer, the metal wiring layer comprises at least one second connection terminal, the at least one second connection terminal corresponds to the at least one first connection terminal in a one-to-one manner, and the second connection terminal is correspondingly connected to the first connection terminal through a conductive mechanism; The control unit is electrically connected to the at least one second connection terminal.

9. The display device according to claim 8, characterized in that: The conductive mechanism comprises a support and a conductive ball; The support member is supported between the first substrate and the second substrate; The conductive balls are doped into the support member to electrically connect the first connection terminal to the second connection terminal.

10. The display device according to any one of claims 1 to 9, characterized in that: The control unit is used for: When the temperature detected by the temperature detection unit is greater than a preset temperature, controlling the voltage applied to the heating layer to be zero; When the temperature detected by the temperature detection unit is less than or equal to a preset temperature, the voltage applied to the heating layer is controlled to be a preset voltage value, and the preset voltage value is greater than zero.

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