CN114265250B

CN114265250B - Liquid crystal display panel and display device

Info

Publication number: CN114265250B
Application number: CN202111574774.1A
Authority: CN
Inventors: 童松
Original assignee: Suzhou China Star Optoelectronics Technology Co Ltd
Current assignee: Suzhou China Star Optoelectronics Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-04-07
Anticipated expiration: 2041-12-21
Also published as: CN114265250A

Abstract

The embodiment of the application provides a liquid crystal display panel and display device, and the liquid crystal display panel includes: a color film substrate; a liquid crystal layer; the array substrate comprises a public electrode layer, a plurality of first switches and a plurality of second switches, the public electrode layer is arranged on one side, deviating from the color film substrate, of the liquid crystal layer, the public electrode layer comprises a plurality of signal lines, a first side and a second side, the first switches are arranged on the first side, the second switches are arranged on the second side, and the public electrode layer is used for: in the non-display stage, if the ambient temperature of the liquid crystal display panel is lower than the preset temperature, at least part of the first switches in the first switches and at least part of the second switches in the second switches are disconnected, at least two signal lines are connected in series, and a heating signal can be obtained to heat the liquid crystal display panel. The common electrode layer is multiplexed, and because the common electrode layer is close to the liquid crystal layer, heat conduction through other media is not needed, and the heating efficiency of the liquid crystal layer is improved.

Description

Liquid crystal display panel and display device

Technical Field

The application belongs to the technical field of display devices, and particularly relates to a liquid crystal display panel and a display device.

Background

In recent years, the LCD (Liquid Crystal Display) industry has been rapidly developing. Liquid crystal display panels have the advantages of low power consumption, small size, low radiation, and the like, and are therefore widely used in display screens of televisions, computers, and the like.

The liquid crystal display panel is affected by liquid crystal, the viscosity of the liquid crystal is increased at low temperature, the response time is increased, the image quality of a display device is easily deteriorated, a trailing phenomenon exists in a dynamic image, and the visual effect is affected. Therefore, designers often add a heating structure to the liquid crystal display panel to heat the liquid crystal. However, the conventional heating structure of the liquid crystal display panel has a problem of low heat transfer efficiency.

Disclosure of Invention

The embodiment of the application provides a liquid crystal display panel and a display device, and aims to solve the problem that a heating structure of an existing liquid crystal display panel is low in heat transfer efficiency.

In a first aspect, an embodiment of the present application provides a liquid crystal display panel, including:

a color film substrate;

the liquid crystal layer is arranged on one side of the color film substrate; and

the array substrate comprises a public electrode layer, a plurality of first switches and a plurality of second switches, the public electrode layer is arranged on one side, away from the color film substrate, of the liquid crystal layer, the public electrode layer comprises a plurality of signal lines, the signal lines are arranged at intervals, the public electrode layer comprises a first side and a second side which are opposite, two ends of each signal line are respectively located on the first side and the second side, the first switches are arranged on the first side, the second switches are arranged on the second side, and the public electrode layer is configured to be:

in the display stage of the liquid crystal display panel, the plurality of first switches and the plurality of second switches are closed, the plurality of signal lines are connected in parallel, and a common voltage signal can be acquired for display of the liquid crystal display panel;

at the non-display stage of the liquid crystal display panel, if the ambient temperature at which the liquid crystal display panel is located is less than a preset temperature, at least part of the first switches in the first switches are turned off and at least part of the second switches in the second switches are turned off, at least two of the signal lines are connected in series and can acquire a heating signal to heat the liquid crystal display panel.

Optionally, the first switch includes a first sub-switch and a second sub-switch, and three adjacent signal lines are respectively connected to the first sub-switch and the second sub-switch at the first side;

the second switch comprises a third sub-switch and a fourth sub-switch, and three adjacent signal lines are respectively connected with the third sub-switch and the fourth sub-switch on the second side.

Optionally, the array substrate further includes a first signal terminal and a second signal terminal, the first signal terminal is disposed corresponding to the first side, and the second signal terminal is disposed corresponding to the second side;

one end of a first signal wire in the plurality of signal wires is connected with the first signal end, one end of the first signal wire is also connected with the first sub-switch, and the other end of the first signal wire is connected with the fourth sub-switch;

one end of a second signal wire in the plurality of signal wires is connected with the second sub-switch, and the other end of the second signal wire is connected with the third sub-switch and the second signal end.

Optionally, in the non-display stage of the liquid crystal display panel, if the ambient temperature at which the liquid crystal display panel is located is less than the preset temperature, the first sub-switch and the third sub-switch are both turned off, the second sub-switch and the fourth sub-switch are both turned on, the plurality of signal lines are connected in series, and the heating signal can be acquired from the first signal end and transmitted to the second signal end through the plurality of signal lines.

Optionally, the first sub-switches and the second sub-switches are adjacent and staggered, and the sum of the number of the first sub-switches and the number of the second sub-switches is equal to the number of the first switches;

the third sub-switches and the fourth sub-switches are adjacent and arranged in a staggered mode, and the sum of the number of the third sub-switches and the number of the fourth sub-switches is equal to the number of the second switches.

Optionally, the first switch is connected to the two adjacent signal lines on the first side;

and on the second side, one signal line in two adjacent signal lines is connected with the second switch.

Optionally, the array substrate further includes a plurality of electrode terminals, each signal line is connected to one of the electrode terminals on the first side, and the electrodes of the electrode terminals connected to two adjacent signal lines are different.

Optionally, in a non-display stage of the liquid crystal display panel, if the ambient temperature of the liquid crystal display panel is less than a preset temperature, the plurality of first switches and the plurality of second switches are all turned off, and every two signal lines of the plurality of signal lines are connected in series.

Optionally, the array substrate further includes a first signal end and a second signal end, the first signal end is disposed at the first side, the second signal end is disposed at the second side, and the first signal end and the second signal end are respectively connected to a third signal line of the plurality of signal lines;

in a display stage of the liquid crystal display panel, the plurality of first switches and the plurality of second switches are both closed, the plurality of signal lines are connected in parallel, and a common voltage signal can be acquired from the first signal end and transmitted to the second signal end through the plurality of signal lines.

In a second aspect, an embodiment of the present application further provides a display device, including:

a liquid crystal display panel, the liquid crystal display panel of any one of the above; and

and the backlight module is electrically connected with the liquid crystal display panel to provide backlight source for the liquid crystal display panel.

In the liquid crystal display panel and the display device of the embodiment of the application, the plurality of first switches and the plurality of second switches which can perform on-off control on the signal lines of the common electrode layer are arranged on the array substrate, so that the common voltage signals can be provided for the liquid crystal display panel in the display stage to be displayed, and the liquid crystal display panel can be heated in the non-display stage to prevent the influence on the liquid crystal due to the excessively low ambient temperature. The common electrode layer is multiplexed, and because the common electrode layer is close to the liquid crystal layer, heat conduction through other media is not needed, and the heating efficiency of the liquid crystal layer is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.

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

Fig. 2 is a schematic structural diagram of a liquid crystal display panel in the display device shown in fig. 1.

Fig. 3 is a schematic view of a first structure of the array substrate in the liquid crystal display panel shown in fig. 2.

Fig. 4 is a schematic diagram of a second structure of the array substrate in the liquid crystal display panel shown in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to solve the problem of low heat transfer efficiency of the heating structure of the conventional liquid crystal display panel, embodiments of the present application provide a liquid crystal display panel and a display device, which will be described below with reference to the accompanying drawings.

For example, please refer to fig. 1, and fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. The embodiment of the present application provides a display device 1, and the embodiment of the present application provides a display device 1, where the display device 1 may be an LCD type display, that is, a liquid crystal display device, and the liquid crystal display device belongs to one type of flat panel display. For example, the liquid crystal display may be applied to a liquid crystal television, a mobile phone, a Personal Digital Assistant (PDA), a digital camera, a computer screen, a notebook computer screen, or the like. The liquid crystal display screen has the advantages of low power consumption, small volume and low radiation. The liquid crystal display screen uses liquid crystal solution in two pieces of polarization materials, so that the crystal can be rearranged to achieve the purpose of imaging when current passes through the liquid.

For example, the display device 1 may include a liquid crystal display panel 10 and a backlight module 20, wherein the backlight module 20 is electrically connected to the liquid crystal display panel 10 to provide a backlight source for the liquid crystal display panel 10. The BackLight (BackLight) is a light source located at the back of the liquid crystal display, and its light emitting effect will directly affect the visual effect of the liquid crystal display device. It should be noted that the liquid crystal itself does not emit light, and it displays graphics or characters as a result of its modulation of light. The backlight source provided by the backlight module 20 and the liquid crystal display panel 10 are combined together to form the display device 1. The liquid crystal display panel 10 operates on the principle that liquid crystal molecules are filled between a Thin Film Transistor Array (TFT Array Substrate) and a Color Filter (CF) Substrate, and a driving voltage is applied to the two substrates to control the rotation direction of the liquid crystal molecules, so as to refract light from the backlight module 20 to generate a picture.

The liquid crystal display panel 10 is affected by liquid crystal, and at low temperature, the viscosity of the liquid crystal increases, the response time increases, the image quality of the display device 1 is easily deteriorated, and the moving image has a tailing phenomenon, which affects the visual effect. Therefore, a designer generally adds a heating structure for heating the liquid crystal to the liquid crystal display panel 10. However, the conventional heating structure of the liquid crystal display panel has a problem of low heat transfer efficiency.

In order to solve the above problems, the present embodiment improves the liquid crystal display panel 10, and the structural composition and the operation principle of the liquid crystal display panel 10 will be described below with reference to the accompanying drawings.

For example, referring to fig. 2 and fig. 3 in conjunction with fig. 1, fig. 2 is a schematic structural diagram of a liquid crystal display panel in the display device shown in fig. 1, and fig. 3 is a schematic structural diagram of a first structure of an array substrate in the liquid crystal display panel shown in fig. 2. The liquid crystal display panel 10 of the embodiment of the application may include a color film substrate 11, a liquid crystal layer 13, and an array substrate 15. The liquid crystal layer 13 is disposed on one side of the color filter substrate 11. The array substrate 15 is disposed on a side of the liquid crystal layer 13 away from the color filter substrate 11, that is, the liquid crystal layer 13 is sandwiched between the color filter substrate 11 and the array substrate 15. The array substrate 15 includes a common electrode layer 151, a plurality of first switches 152 and a plurality of second switches 153, the common electrode layer 151 is disposed on a side of the liquid crystal layer 13 away from the color filter substrate 11, the common electrode layer 151 includes a plurality of signal lines L, and the plurality of signal lines L are arranged at intervals. The common electrode layer 151 includes a first side S1 and a second side S2 opposite to each other, two ends of each signal line L are respectively located at the first side S1 and the second side S2, the plurality of first switches 152 are disposed at the first side S1, and the plurality of second switches 153 are disposed at the second side S2. The common electrode layer 151 is configured to: in the display stage of the liquid crystal display panel 10, the plurality of first switches 152 and the plurality of second switches 153 are all closed, the plurality of signal lines L are connected in parallel, and a common voltage signal can be obtained to provide the display of the liquid crystal display panel 10. In the non-display stage of the liquid crystal display panel 10, if the ambient temperature of the liquid crystal display panel 10 is lower than the preset temperature, at least a part of the first switches 152 of the plurality of first switches 152 is turned off and at least a part of the second switches 153 of the plurality of second switches 153 is turned off, and at least two signal lines L of the plurality of signal lines L are connected in series and can obtain the heating signal to heat the liquid crystal display panel 10. By providing the plurality of first switches 152 and the plurality of second switches 153 on the array substrate 15, which can switch the signal lines L of the common electrode layer 151, it is possible to provide a common voltage signal to the liquid crystal display panel 10 in the display stage for displaying and heat the liquid crystal display panel in the non-display stage to prevent the liquid crystal from being affected by too low ambient temperature. The common electrode layer 151 is multiplexed, and since the common electrode layer 151 is close to the liquid crystal layer, heat conduction through other media is not required, and the heating efficiency of the liquid crystal layer 13 is improved.

In an exemplary embodiment, the color filter substrate 11 may include a pixel region and a light shielding region, the pixel region may include filters of multiple colors or color filters, and light refracted by the liquid crystal layer 13 may display images of different colors through the pixel region. The light-shielding region is adjacent to the pixel region to prevent interference between different pixels.

The liquid crystal layer 13 may have a layer structure formed by liquid crystal molecules arranged in a pre-tilt angle, and alignment films are generally disposed on two sides of the liquid crystal layer 13 to align the liquid crystal molecules in the pre-tilt angle, that is, the alignment films are used to position or fix the liquid crystal molecules.

The array substrate 15 may include a Thin Film Transistor (TFT) array and a common electrode layer 151. The common electrode layer 151 may include a plurality of electrodes arranged in an array, and one signal line L may connect the electrodes located in the same row. The TFT is generally a stacked structure, and an electrode of the common electrode layer 151 may be disposed corresponding to a gate stack of the TFT to facilitate signal transfer. The common electrode layer 151 is used to provide an ACOM signal or a common voltage signal to the TFT array as a dc signal. The common electrode layer 151 may form a parallel field capacitor, i.e., a storage capacitor, with the pixel electrode, and thus, may store charges.

It should be noted that, in the prior art, the heating structure for heating the liquid crystal is usually disposed on a side of the color film substrate away from the liquid crystal, and the heating structure may be a transparent conductive metal, and external current flows through the transparent conductive layer to generate heat, thereby achieving an effect of heating the liquid crystal. According to the heating structure arranged in the way, firstly, one side of the color film substrate, which is far away from the liquid crystal layer, is heated, heat needs to be conducted to glass firstly and then is transmitted to liquid crystal, and the efficiency is low. Secondly, a TP on cell product of the mainstream touch technology needs to be provided with a touch sensor on the surface of the color film substrate, and the heating structure conflicts and interferes with the color film substrate. Moreover, when the user uses, the user firstly needs to contact the heating layer, and the risk of instant scald exists. In addition, the film forming mode processing is carried out on two sides of the glass of the color film substrate, so that the product yield is low; moreover, the MASK needs to be added additionally, which results in higher cost.

Accordingly, the embodiment of the present application provides a liquid crystal display panel 10 that multiplexes the common electrode layer 151 of the liquid crystal display panel 10 and improves the array substrate 15, so that the above-mentioned problems can be solved. The following description may be referred to as a modification of the array substrate 15.

For example, with continuing reference to fig. 3, in a first case, a first way of heating by the common electrode layer 151 is: the first switch 152 may include a first sub-switch 1521 and a second sub-switch 1523. The sum of the number of the first sub-switch 1521 and the second sub-switch 1523 is equal to the number of the first switches 152. The number of the first switches 152 is not limited. The adjacent three signal lines L are respectively connected to the first sub-switch 1521 and the second sub-switch 1523 on the first side S1. It can be understood that the first sub-switch 1521 and the second sub-switch 1523 are disposed adjacently and in a staggered manner, for example, a first signal line L is disposed on a third side of the common electrode layer 151 perpendicular to the first side S1 among the plurality of signal lines L, the first sub-switch 1521 may be disposed between the first signal line L and the second signal line L, the second sub-switch 1523 may be disposed between the second signal line L and the third signal line L, the first sub-switch 1521 may be disposed between the third signal line L and the fourth signal line L, and so on.

Likewise, the second switch 153 may include a third sub-switch 1531 and a fourth sub-switch 1533. The sum of the numbers of the third and fourth sub-switches 1531 and 1533 is equal to the sum of the numbers of the second switches 153. The number of the second switches 153 is not limited. The adjacent three signal lines L are connected to the third and fourth sub-switches 1531 and 1533, respectively, at the second side S2. It is understood that the third sub-switch 1531 and the fourth sub-switch 1533 are disposed adjacent to each other and offset. For example, a fourth sub-switch 1533 is disposed between the first signal line L and the second signal line L, a third sub-switch 1531 is disposed between the second signal line L and the third signal line L, a fourth sub-switch 1533 is disposed between the third signal line L and the fourth signal line L, and so on. The first sub-switch 1521 and the fourth sub-switch 1533 may be located in the same row, that is, the two signal lines L connected to the first sub-switch 1521 are the same as the two signal lines connected to the fourth sub-switch 1533. Accordingly, the second sub-switch 1523 and the third sub-switch 1531 are located in the same row.

The array substrate 15 further includes a first signal terminal 154 and a second signal terminal 155, wherein the first signal terminal 154 is disposed corresponding to the first side S1, and the second signal terminal 155 is disposed corresponding to the second side S2.

Illustratively, one end of a first signal line L1 in the plurality of signal lines L is connected to the first signal terminal 154, one end of the first signal line L1 is further connected to a first sub-switch 1521, and the other end of the first signal line L1 is connected to a fourth sub-switch 1533. One end of a second signal line L2 in the plurality of signal lines L is connected to the second sub-switch 1523, and the other end of the second signal line L2 is connected to the third sub-switch 1531 and the second signal terminal 155. It is understood that the first signal line L1 may be a first signal line L located at an edge of the plurality of signal lines L, and the second signal line L2 may be a last signal line L located at an edge of the plurality of signal lines L.

In the display stage of the lcd panel 10, the first sub-switch 1521, the second sub-switch 1523, the third sub-switch 1531 and the fourth sub-switch 1533 are all closed, and the plurality of signal lines L are connected in parallel and can obtain a common voltage signal from the first signal terminal 154 to provide the display of the lcd panel 10. The second signal terminal 155 forms a circuit path with a plurality of signal lines L each connected to the first signal terminal 154 and the second signal terminal 155, and the first signal terminal 154.

In the non-display stage of the lcd panel 10, if the ambient temperature of the lcd panel 10 is lower than the preset temperature, the first sub-switch 1521 and the third sub-switch 1531 are both turned off, the second sub-switch 1523 and the fourth sub-switch 1533 are both turned on, and the plurality of signal lines L are connected in series, and can obtain the heating signal from the first signal terminal 154 and transmit the heating signal to the second signal terminal 155 through the plurality of signal lines L, thereby heating the lcd panel 10. It should be noted that the first signal terminal 154, the second signal terminal 155 and the plurality of signal lines L may form a closed loop, and the first signal terminal 154 may obtain a voltage signal to allow a predetermined current to pass through the plurality of signal lines L, so that the signal lines L generate heat to heat the liquid crystal layer 13.

In the non-display stage of the liquid crystal display panel 10, if the ambient temperature of the liquid crystal display panel 10 is lower than the preset temperature, the first sub-switch 1521 and the third sub-switch 1531 may be both turned on, and the second sub-switch 1523 and the fourth sub-switch 1533 may be both turned off. Such a combination may form the signal lines L connected in series. The effects achieved are similar to those described above and, therefore, are not described in detail here.

The signal lines L are serially connected to one layer of the array substrate 15, and the signal lines L are arranged in a serpentine shape, so that the liquid crystal layer 13 can be uniformly heated by the signal lines L. In addition, compared with a mode that the liquid crystal layer 13 is heated by a plurality of signal lines L connected in parallel, the current of a single signal line L in the embodiment of the present application may be larger than the current value of each signal line in parallel, so that the heating effect is better. When a certain amount of heat generation is required, if the parallel signal lines provide a current value of a predetermined magnitude, the current at the signal supply end is equal to the sum of the current values of all the signal lines, which may easily burn out the common electrode layer 151. The current value of each signal line L required by the embodiment of the present application is equal to the current value of the signal supply terminal.

In this case, the first signal terminal 154 and the second signal terminal 155 may transmit a common voltage signal or a heating signal. The heating signal may also be a voltage signal, the heating signal having a different value than the common voltage signal. For example, the common voltage signal may be a PWM (Pulse Width Modulation) signal composed of a high level and a low level. The heating signal may be a digital voltage signal.

In an exemplary embodiment, the first sub-switch 1521, the second sub-switch 1523, the third sub-switch 1531, and the fourth sub-switch 1533 may be all thin film transistor type switches, so that the first sub-switch, the second sub-switch, the third sub-switch 1531, and the fourth sub-switch 1533 may be fabricated together with a driving thin film transistor during fabrication, thereby saving the process steps.

For example, referring to fig. 4 in conjunction with fig. 1 to fig. 3, fig. 4 is a schematic diagram of a second structure of the array substrate in the liquid crystal display panel shown in fig. 2. In the second case, the second method of heating by the common electrode layer 151: the first switch 152 is connected to the first side S1 of the adjacent two signal lines L. On the second side S2, a second switch 153 is connected to one signal line L of two adjacent signal lines L. Illustratively, the first signal line L is located on a third side of the common electrode layer 151 perpendicular to the first side S1, and the first switch 152 is disposed on the first side S1 between the first signal line L and the second signal line L, and the second side S2 is directly connected. The first side S1 of the second and third signal lines L and L is provided with a first switch 152, and the second side S2 is provided with a second switch 153. The first side S1 of the third and fourth signal lines L is provided with a first switch 152, the second side S2 is directly connected, and so on. It is understood that the number of the second switches 153 is smaller than the number of the first switches 152.

Illustratively, the array substrate 15 may further include a plurality of electrode terminals 156, each of the signal lines L is connected to one of the electrode terminals 156 at the first side S1, and the electrode terminals 156 connected to two adjacent signal lines L have different electrodes. For example, the electrode provided by the electrode terminal 156 connected to the first signal line L is a positive electrode, and the electrode provided by the electrode terminal 156 connected to the second signal line L adjacent thereto is a negative electrode.

In the non-display stage of the liquid crystal display panel 10, if the ambient temperature of the liquid crystal display panel 10 is lower than the preset temperature, the first switches 152 and the second switches 153 are all turned off, every two signal lines L of the signal lines L are connected in series, and two adjacent signal lines L and the two electrode terminals 156 form a series loop, so that a preset current value flows through the signal lines L, and the signal lines L generate heat to heat the liquid crystal layer 13. The heating mode that sets up like this can adjust and control the heating current of local signal line L, and is more nimble.

Illustratively, the array substrate 15 further includes a first signal terminal 154 and a second signal terminal 155, the first signal terminal 154 is disposed on the first side S1, and the second signal terminal 155 is disposed on the second side S2. The first and

second signal terminals

154 and 155 are respectively connected to a third signal line L3 among the plurality of signal lines L. The third signal line L3 may be understood as the last signal line L disposed at an edge among the plurality of signal lines L.

In the display stage of the liquid crystal display panel 10, the plurality of first switches 152 and the plurality of second switches 153 are all closed, the plurality of signal lines L are connected in parallel, and the common voltage signal can be obtained from the first signal terminal 154 and transmitted to the second signal terminal 155 through the plurality of signal lines L.

It should be noted that, in this case, the common voltage signal and the heating signal are different in source. So that the display and heating of the liquid crystal display panel 10 can be more conveniently controlled.

Of course, there may be other heating modes for the liquid crystal layer 13, and the above description is only for illustration and should not be understood that the embodiment of the present application only has two heating modes for the liquid crystal layer 13.

It should be noted that the ambient temperature has a large influence on the liquid crystal in the liquid crystal display panel 10, for example, when the ambient temperature is lower than-30 ℃, the liquid crystal gradually crystallizes and solidifies, and thus the liquid crystal cannot normally operate. Therefore, the preset temperature at which the liquid crystal layer 13 is heated may be-15 ℃.

In the liquid crystal display panel 10 and the display device 1 provided in the embodiment of the application, by providing the plurality of first switches 152 and the plurality of second switches 153 capable of performing on-off control on the signal line L of the common electrode layer 151 on the array substrate 15, it is possible to provide a common voltage signal to the liquid crystal display panel 10 in the display stage to perform display, and to heat the liquid crystal display panel in the non-display stage to prevent the influence on the liquid crystal due to too low ambient temperature. The common electrode layer 151 is multiplexed, and since the common electrode layer 151 is close to the liquid crystal layer, heat conduction through other media is not required, and the heating efficiency of the liquid crystal layer 13 is improved.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The liquid crystal display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A liquid crystal display panel, comprising:

a color film substrate;

the array substrate comprises a common electrode layer, a plurality of first switches and a plurality of second switches, the common electrode layer is arranged on one side, away from the color film substrate, of the liquid crystal layer, the common electrode layer comprises a plurality of signal lines, the signal lines are arranged at intervals, the common electrode layer comprises a first side and a second side which are opposite, two ends of each signal line are respectively located on the first side and the second side, the first switches are arranged on the first side, the second switches are arranged on the second side, and the common electrode layer is configured to be:

in the display stage of the liquid crystal display panel, the plurality of first switches and the plurality of second switches are all closed, the plurality of signal lines are connected in parallel, and a common voltage signal can be obtained to be displayed by the liquid crystal display panel;

2. The liquid crystal display panel according to claim 1, wherein the first switch includes a first sub-switch and a second sub-switch, and three adjacent signal lines are connected to the first sub-switch and the second sub-switch at the first side, respectively;

3. The liquid crystal display panel according to claim 2, wherein the array substrate further comprises a first signal terminal and a second signal terminal, the first signal terminal is disposed corresponding to the first side, and the second signal terminal is disposed corresponding to the second side;

4. The LCD panel of claim 3, wherein in a non-display stage of the LCD panel, if an ambient temperature of the LCD panel is lower than a predetermined temperature, the first and third sub-switches are both open, the second and fourth sub-switches are both closed, and the plurality of signal lines are connected in series and can obtain the heating signal from the first signal terminal and transmit the heating signal to the second signal terminal via the plurality of signal lines.

5. The liquid crystal display panel according to claim 2, wherein the first and second sub-switches are disposed adjacent to each other and shifted, and the sum of the number of the first and second sub-switches is equal to the number of the first switches;

6. The liquid crystal display panel according to claim 1, wherein the first switch is connected to adjacent two of the signal lines on the first side;

and on the second side, one signal wire of two adjacent signal wires is connected with the second switch.

7. The lcd panel of claim 6, wherein the array substrate further comprises a first signal terminal, a second signal terminal and a plurality of electrode terminals, the first signal terminal is disposed on the first side, the second signal terminal is disposed on the second side, the first signal terminal and the second signal terminal are respectively connected to a third signal line on the edge of the plurality of signal lines, the remaining signal lines except the third signal line among the plurality of signal lines are respectively connected to the plurality of electrode terminals in a one-to-one correspondence manner, and the electrodes of the electrode terminals connected to two adjacent signal lines are different.

8. The panel of claim 7, wherein during a non-display period of the panel, if an ambient temperature of the panel is lower than a predetermined temperature, the first switches and the second switches are turned off, and every two signal lines of the signal lines are connected in series.

9. The panel of claim 7, wherein the first switches and the second switches are closed during a display phase of the panel, and the signal lines are connected in parallel and capable of obtaining a common voltage signal from the first signal terminal and transmitting the common voltage signal to the second signal terminal via the signal lines.

10. A display device, comprising:

a liquid crystal display panel according to any one of claims 1 to 9; and