Display panel and display device

By designing the pixel electrode and matching electrode in the display panel, the deflection and angle correction of the liquid crystal molecule is controlled to solve the problem of light leakage and residual image caused by liquid crystal molecules that are prone to damage, and the display contrast is improved.

CN119376147APending Publication Date: 2025-01-28MIANYANG HKC OPTOELECTRONICS TECH CO LTD +1
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
CN202411730202.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

The alignment of liquid crystal molecules in the display panel is easily destroyed, resulting in display problems such as light leakage and afterimage.

Method used

A display panel is designed, which contains LCD layers and array components. The array components include pixel electrode and matching electrodes of layered settings. In the first state, the pixel electrode forms the first horizontal electric field with the public electrode to control the deflection of the liquid crystal molecule; in the second state, the electrode forms a second horizontal electric field to correct the liquid crystal molecule.

Benefits of technology

The problem of insufficient LCD molecule has the problem of lack of ability to match, and avoids the appearance of the display panel or insufficient brightness, which improves the display contrast.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119376147A_ABST
    Figure CN119376147A_ABST
Patent Text Reader

Abstract

The invention provides a display panel and a display device, the display panel has a first state and a second state, the display panel comprises a liquid crystal layer and an array assembly, the liquid crystal layer comprises a plurality of liquid crystal molecules, the liquid crystal layer is arranged on the array assembly, and the array assembly comprises pixel electrodes and alignment electrodes which are arranged in a layered mode. The pixel electrode is used for forming a first transverse electric field with the common electrode in a first state, and the first transverse electric field controls the plurality of liquid crystal molecules to deflect, so that light can penetrate through the liquid crystal layer; the alignment electrode is used for forming a second transverse electric field in the second state, and the second transverse electric field corrects the angles of the liquid crystal molecules close to the pixel electrode. The problem of insufficient liquid crystal molecule alignment capability of an alignment film in the prior art can be improved, the problems of display residual images or insufficient display brightness and the like of a display panel are avoided, and the display contrast of the display panel is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] In the related art, the alignment of the liquid crystal molecules at the bottom of the liquid crystal layer of the display panel is easily destroyed under the action of long-term high voltage, resulting in display problems such as light leakage and afterimage on the display panel. Summary of the invention

[0003] The purpose of the present application is to provide a display panel and a display device to solve the technical problem that the alignment of liquid crystal molecules in the display panel is easily destroyed, resulting in display problems such as light leakage and afterimage.

[0004] In a first aspect, the present application provides a display panel, the display panel having a first state and a second state, the display panel comprising:

[0005] a liquid crystal layer, comprising a plurality of liquid crystal molecules; and

[0006] An array component, wherein the liquid crystal layer is arranged on the array component, and the array component includes pixel electrodes and alignment electrodes arranged in layers, wherein the alignment electrode is used to form a first transverse electric field with a common electrode in a first state, and the first transverse electric field controls the deflection of a plurality of the liquid crystal molecules so that light can pass through the liquid crystal layer; and the alignment electrode is used to form a second transverse electric field in a second state, and the second transverse electric field corrects the angles of the plurality of liquid crystal molecules close to the pixel electrode.

[0007] In the display panel provided in the present application, the liquid crystal layer includes a plurality of liquid crystal molecules, and the liquid crystal layer is arranged on an array component. The array component includes a pixel electrode and an alignment electrode arranged in layers. The pixel electrode is used to form a first transverse electric field with a common electrode in a first state. The first transverse electric field controls the deflection of a plurality of liquid crystal molecules so that light can pass through the liquid crystal layer; the alignment electrode is used to form a second transverse electric field in a second state. The second transverse electric field corrects the angles of a plurality of liquid crystal molecules close to the pixel electrode. This can improve the problem of insufficient alignment ability of the alignment film for liquid crystal molecules in the related art, avoid problems such as afterimage or insufficient display brightness in the display of the display panel, and is beneficial to improving the display contrast of the display panel.

[0008] Wherein, the pixel electrode and the alignment electrode work in time-sharing manner.

[0009] There are multiple alignment electrodes, and the multiple alignment electrodes are sequentially arranged at intervals along a preset direction, and the preset direction is the electric field direction of the second transverse electric field.

[0010] Among them, the display panel also includes a scan line, which is electrically connected to the pixel electrode and the alignment electrode respectively, and the scan line is used to provide a scan signal to the pixel electrode and the alignment electrode; the display panel also includes a first data line and a second data line, the first data line is electrically connected to the pixel electrode and is used to provide a first data signal, and the second data line is electrically connected to the alignment electrode and is used to provide a second data signal, and the first data signal and the second data signal are used to drive the pixel electrode and the alignment electrode to work in time sharing.

[0011] The array component includes a pixel thin film transistor and an alignment thin film transistor, the pixel thin film transistor is electrically connected to the pixel electrode, the alignment thin film transistor is electrically connected to the alignment electrode, and the pixel thin film transistor and the alignment thin film transistor share a gate.

[0012] Wherein, the display panel further comprises a color film component, which is arranged on a side of the liquid crystal layer away from the array component, and is used for transmitting light emitted from the liquid crystal layer and forming a display image.

[0013] The color film component includes a first electrode, the array component includes a second electrode, the second electrode and the pixel electrode are arranged in layers, the first electrode and the second electrode are used to form a vertical electric field, and the vertical electric field corrects the angles of the plurality of liquid crystal molecules.

[0014] Wherein, the pixel electrode and the first electrode work in time-sharing manner.

[0015] Among them, when the display panel is an IPS mode display panel, the pixel electrodes and common electrodes of the array component are arranged in the same layer with intervals; when the display panel is an FFS mode display panel, the pixel electrodes and common electrodes of the array component are arranged in layers.

[0016] In a second aspect, the present application provides a display device, which includes a backlight module and the display panel, wherein the backlight module is used to emit visible light to the display panel.

[0017] In the display device provided in the present application, the liquid crystal layer includes a plurality of liquid crystal molecules, and the liquid crystal layer is arranged on an array component. The array component includes a pixel electrode and an alignment electrode arranged in layers. The pixel electrode is used to form a first transverse electric field with a common electrode in a first state. The first transverse electric field controls the deflection of a plurality of liquid crystal molecules so that light can pass through the liquid crystal layer; the alignment electrode is used to form a second transverse electric field in a second state. The second transverse electric field corrects the angles of a plurality of liquid crystal molecules close to the pixel electrode. This can improve the problem of insufficient alignment ability of the alignment film for liquid crystal molecules in the related art, avoid problems such as afterimage or insufficient display brightness in the display of the display device, and is beneficial to improving the display contrast of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of a structure in which the alignment ability of liquid crystal molecules is insufficient, provided in an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of a structure after correcting the deflection angle of liquid crystal molecules provided in an embodiment of the present application;

[0023] Figure 5 is a schematic diagram of electrical connection between a pixel electrode and an alignment electrode provided in an embodiment of the present application;

[0024] Figure 6 It is a schematic diagram of the structure of liquid crystal molecules after a pre-tilt angle θ is generated in the related art;

[0025] Figure 7 is a schematic structural diagram of a display panel including a first electrode provided in an embodiment of the present application;

[0026] Figure 8 It is a schematic diagram of an electrode structure in an IPS display panel provided in an embodiment of the present application;

[0027] Fig. 9 is a schematic diagram of an electrode structure in an FFS display panel provided in an embodiment of the present application;

[0028] Fig.10 It is a structural schematic diagram of a display device provided in an embodiment of the present application.

[0029] Description of labels:

[0030] Display device-1000, display panel-100, liquid crystal layer-10, liquid crystal molecules-11, array component-20, pixel electrode-21, alignment electrode-22, first sub-electrode-221, second sub-electrode-222, pixel thin film transistor-23, alignment thin film transistor-24, gate-25, second electrode-26, common electrode-27, color film component-30, first electrode-31, scanning line-40, first data line-51, second data line-52, backlight module-200. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the orientation of the constituent elements being described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the circumstances.

[0035] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal communication of two elements. For ordinary technicians in this field, the meanings of the above terms in this disclosure can be understood according to the circumstances.

[0036] In the related technology, in the actual production process of LCD screens, the thickness of the alignment film fluctuates due to process fluctuations, and the liquid crystal molecules at the bottom of the liquid crystal layer are easily affected by long-term high voltage, which can lead to poor liquid crystal alignment ability and increased transmittance, thereby causing problems such as light leakage and AC (alternating current) afterimages on the display panel.

[0037] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application, Figure 2 1 is a schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present application. The present application provides a display panel 100 to solve the technical problem that the alignment of the liquid crystal molecules 11 in the display panel 100 is easily destroyed, resulting in display problems such as light leakage and afterimage. The display panel 100 has a first state and a second state, the first state is a bright state when the display panel 100 is normally luminous, and the second state is a dark state when the display panel 100 is not luminous.

[0038] The display panel 100 includes a liquid crystal layer 10 and an array assembly 20. The liquid crystal layer 10 includes a plurality of liquid crystal molecules 11.

[0039] Specifically, the display panel 100 further includes a color film assembly 30, and the color film assembly 30 is disposed on a side of the liquid crystal layer 10 away from the array assembly 20. In other words, the color film assembly 30 and the array assembly 20 are disposed relatively spaced apart, and the color film assembly 30 and the array assembly 20 are respectively disposed on opposite sides of the liquid crystal layer 10. The color film assembly 30 is used to transmit light emitted from the liquid crystal layer 10 and form a display screen.

[0040] The display panel 100 also includes a first alignment film and a second alignment film, wherein the first alignment film is disposed between the array assembly 20 and the liquid crystal layer 10, and the second alignment film is disposed between the color film assembly 30 and the liquid crystal layer 10, and the first alignment film and the second alignment film are used to align the liquid crystal molecules 11, that is, to arrange a plurality of the liquid crystal molecules 11 in a certain direction and angle.

[0041] The array assembly 20 includes a pixel electrode 21 and an alignment electrode 22 arranged in layers, and the alignment electrode 22 is arranged on a side of the pixel electrode 21 away from the liquid crystal layer 10. The pixel electrode 21 is used to form a first transverse electric field with the common electrode 27 in a first state, and the first transverse electric field controls the deflection of the plurality of liquid crystal molecules 11 so that light can pass through the liquid crystal layer 10. Specifically, in the first state, the display panel 100 displays images normally, and the pixel electrode 21 inputs a high-level signal and forms the first transverse electric field with the common electrode 27.

[0042] The alignment electrode 22 is used to form a second transverse electric field in the second state, and the second transverse electric field corrects the angles of the plurality of liquid crystal molecules 11 close to the pixel electrode 21. Specifically, in the second state, the display panel 100 displays in a dark state, the alignment electrode 22 inputs a high-level signal and forms the second transverse electric field, and the second transverse electric field can be used to correct the deflection angle of the liquid crystal molecules 11.

[0043] like Figure 3 As shown, Figure 3It is a structural schematic diagram of a liquid crystal molecule with insufficient alignment ability provided by an embodiment of the present application. Under the action of long-term high voltage, the liquid crystal alignment ability of the liquid crystal molecules 11 at the bottom of the liquid crystal layer 10 deteriorates. After the pixel electrode 21 stops working, the alignment of the liquid crystal molecules 11 cannot be restored to the initial alignment state (that is, it cannot be restored to the state where the alignment molecules are perpendicular to the alignment electrode 22). When the display panel 100 enters the second frame from the first frame, if the alignment of the liquid crystal molecules 11 cannot be restored to the initial alignment, it may cause the pixel voltage provided by the pixel electrode 21 of the next frame to fail to deflect the liquid crystal molecules 11 to a suitable angle, which may cause the display of the display panel 100 to have a residual image or a decrease in the display effect. In addition, when performing dark display, if the alignment of the liquid crystal molecules 11 cannot be restored to the initial alignment, it may cause part of the light to be emitted from the liquid crystal layer 10, reducing the display contrast of the display panel 100.

[0044] As shown in Figure 4, Figure 4 It is a structural schematic diagram after correcting the deflection angle of liquid crystal molecules provided by an embodiment of the present application. In this embodiment, when the alignment electrode 22 works, the alignment electrode 22 will form the second transverse electric field E2, and the second transverse electric field E2 can control the liquid crystal molecules 11 to be corrected to the initial alignment state (that is, the liquid crystal molecules 11 are perpendicular to the alignment electrode 22). Specifically, the number of the alignment electrodes 22 is multiple, and the multiple alignment electrodes 22 are arranged in sequence along a preset direction, and the preset direction is the electric field direction of the second transverse electric field E2, and the initial alignment state of the liquid crystal molecules 11 is set along the preset direction. When the display panel 100 of the present application enters the second frame from the first frame, in the last part of the first frame, the pixel electrode 21 does not work, and the alignment electrode 22 works and controls the liquid crystal molecules 11 to be corrected to the initial alignment state, so that the display panel 100 will not have afterimages or insufficient display brightness when displaying the second frame. Furthermore, when dark state display is required, the alignment electrode 22 can also operate and control the liquid crystal molecules 11 to be corrected to an initial alignment state, thereby preventing light from being emitted from the liquid crystal layer 10 during dark state display, which is beneficial to improving the display contrast of the display panel 100 .

[0045] In the display panel 100 provided in the present application, the liquid crystal layer 10 includes a plurality of liquid crystal molecules 11, and the liquid crystal layer 10 is arranged on the array component 20, and the array component 20 includes a pixel electrode 21 and an alignment electrode 22 arranged in layers, and the pixel electrode 21 is used to form a first transverse electric field with a common electrode 27 in a first state, and the first transverse electric field controls the deflection of the plurality of liquid crystal molecules 11 so that light can pass through the liquid crystal layer 10; the alignment electrode 22 is used to form a second transverse electric field E2 in a second state, and the second transverse electric field E2 corrects the angles of the plurality of liquid crystal molecules 11 close to the pixel electrode 21, which can improve the problem of insufficient alignment ability of the alignment film for the liquid crystal molecules 11 in the related art, avoid problems such as afterimage or insufficient display brightness in the display of the display panel 100, and is beneficial to improving the display contrast of the display panel 100.

[0046] It should be noted that the display panel 100 may include multiple display areas, and the multiple display areas all have a first state and a second state. Take the multiple display areas including a first display area and a second display area as an example, wherein the first display area is in the first state and the second display area is in the second state. When the first display area is in the first state, the pixel electrode 21 in the first display area inputs a high-level signal and forms the first transverse electric field with the common electrode 27; when the second display area is in the second state, the alignment electrode 22 in the second display area inputs a high-level signal and forms the second transverse electric field E2, and the second transverse electric field E2 can be used to correct the deflection angle of the liquid crystal molecules 11 in the second display area, to prevent light from emitting from the second display area when the second display area is displayed in a dark state, thereby improving the display contrast between the first display area and the second display area.

[0047] It should be noted that, in this embodiment, the second transverse electric field E2 is used to control the rotation of the liquid crystal molecules 11 in the orthographic projection plane of the display panel 100 (as shown in FIG. 4 , the rotation of the liquid crystal molecules 11 in the XY plane).

[0048] In one embodiment, the pixel electrode 21 and the alignment electrode 22 work in time sharing. In other words, one of the pixel electrode 21 and the alignment electrode 22 works, and the other does not work. In other words, one of the first transverse electric field and the second transverse electric field E2 is turned on, and the other is turned off, so as to avoid mutual interference between the first transverse electric field and the second transverse electric field E2, thereby affecting the normal display of the display panel 100.

[0049] Please refer to Figure 4 and Figure 5 , Figure 5 It is a schematic diagram of electrical connection of a pixel electrode and an alignment electrode provided in an embodiment of the present application. Specifically. In one embodiment, the display panel 100 further includes a scan line 40, the scan line 40 is electrically connected to the pixel electrode 21 and the alignment electrode 22, respectively, and the scan line 40 is used to provide a scan signal to the pixel electrode 21 and the alignment electrode 22. The display panel 100 further includes a first data line 51 and a second data line 52, the first data line 51 is electrically connected to the pixel electrode 21, and is used to provide a first data signal, and the second data line 52 is electrically connected to the alignment electrode 22, and is used to provide a second data signal. The timing of the first data signal and the second data signal is staggered, and the first data signal and the second data signal are used to drive the pixel electrode 21 and the alignment electrode 22 to work in time sharing.

[0050] Further, in one embodiment, the number of the alignment electrodes 22 is multiple, and the multiple alignment electrodes 22 include multiple first sub-electrodes 221 and second sub-electrodes 222. The first sub-electrodes 221 and the second sub-electrodes 222 are arranged alternately in sequence, the voltage of the first sub-electrode 221 is different from the voltage of the second sub-electrode 222, and one first sub-electrode 221 and one second sub-electrode 222 form a sub-transverse electric field, and the multiple sub-transverse electric fields form the second transverse electric field E2.

[0051] Specifically, in this embodiment, the number of the second data lines 52 is multiple, and the multiple second data lines 52 include a first sub-line and a second sub-line, the first data signal includes a first sub-signal and a second sub-signal, the first sub-line is used to input the first sub-signal into the first sub-electrode 221, and the second sub-line is used to input the second sub-signal into the second sub-electrode 222, and the level of the first sub-signal is lower than or higher than the level of the second sub-signal, so that the first sub-electrode 221 and the second sub-electrode 222 form the sub-lateral electric field.

[0052] The alignment electrode 22 is used to correct the deflection angle of the liquid crystal molecules 11 . Therefore, the intensity of the second transverse electric field E2 does not need to be very large, and the second sub-signal does not need to input a very high level, which can reduce the power consumption of the display panel 100 .

[0053] Please refer to Figure 2 Specifically, the array component 20 includes a pixel thin film transistor 23 and an alignment thin film transistor 24, the pixel thin film transistor 23 is electrically connected to the pixel electrode 21, the alignment thin film transistor 24 is electrically connected to the alignment electrode 22, and the pixel thin film transistor 23 and the alignment thin film transistor 24 share a gate 25.

[0054] The pixel thin film transistor 23 and the alignment thin film transistor 24 share a gate 25, and only one scan line 40 is needed to simultaneously control whether the pixel electrode 21 and the alignment electrode 22 are working, and no additional scan signal is needed, thereby reducing the scan lines 40 and the working process of the display panel 100.

[0055] In one embodiment, the display panel 100 also includes a first light sensor and a controller, wherein the first light sensor is disposed in the color film assembly 30, and the first light sensor is used to detect the light transmittance of the liquid crystal layer 10 in the second state, and output a detection signal to the controller according to the light transmittance, and the controller is used to control the intensity of the second transverse electric field E2 according to the detection signal.

[0056] Specifically, for example, if the alignment ability of the first alignment film or the second alignment film is poor, the liquid crystal molecules 11 are deflected by a first angle compared to the initial alignment, the intensity of the light passing through the liquid crystal layer 10 is a first light intensity, and when the first light sensor detects the light of the first light intensity, it outputs a first detection signal to the controller, and the controller is used to control the input of a first level signal to the second data line 52 according to the first detection signal, and the electric field intensity of the second lateral electric field E2 generated by the alignment electrode 22 is a first intensity. The liquid crystal molecules 11 can restore the initial alignment state under the action of the electric field force of the second lateral electric field E2 of the first intensity; if the alignment ability of the liquid crystal molecules 11 is worse, the The liquid crystal molecules 11 are deflected by a second angle (the second angle is greater than the first angle) compared to the initial alignment, and the intensity of the light passing through the liquid crystal layer 10 is a second light intensity (the second light intensity is greater than the first light intensity). When the first light sensor detects the light of the second light intensity, it outputs a second detection signal to the controller. The controller is used to control the input of a second level signal to the second data line 52 according to the second detection signal. The electric field intensity of the second lateral electric field E2 generated by the alignment electrode 22 is a second intensity. The liquid crystal molecules 11 can restore the initial alignment state under the action of the electric field force of the second lateral electric field E2 of the second intensity, wherein the second intensity is greater than the first intensity.

[0057] In other words, the first light sensor and the controller of the display panel 100 cooperate to autonomously adjust the intensity of the second lateral electric field E2 generated by the alignment electrode 22 according to the change of the alignment ability of the first alignment film or the second alignment film, so that the second lateral electric field E2 can accurately correct the liquid crystal molecules 11 to deflect to the initial alignment state, thereby avoiding insufficient or excessive correction of the liquid crystal molecules 11.

[0058] In the related art, in the actual production process of liquid crystal screens, due to the use of friction alignment technology, there will be a certain pre-tilt angle θ (such as Figure 6 As shown, Figure 6 Schematic diagram of the structure of the liquid crystal molecules after the pre-tilt angle θ is generated in the related art). This causes the display screen to have a slight light leakage phenomenon when displaying in the black state, thereby reducing the contrast. The larger the pre-tilt angle θ, the more obvious the light leakage phenomenon.

[0059] Please refer to Figure 7 , Figure 7 1 is a schematic diagram of a structure of a display panel including a first electrode provided in an embodiment of the present application. In one embodiment, the color film assembly 30 includes a first electrode 31, the array assembly 20 includes a second electrode 26, and the second electrode 26 and the pixel electrode 21 are arranged in layers. The first electrode 31 and the second electrode 26 work simultaneously, and the first electrode 31 and the second electrode 26 are used to form a vertical electric field E1, and the vertical electric field E1 corrects the angles of the plurality of liquid crystal molecules 11, which can improve the slight light leakage phenomenon of the display panel 100 when displaying in a black state, and improve the display contrast of the display panel 100.

[0060] In one embodiment, the pixel electrode 21 and the first electrode 31 work in time sharing. In other words, one of the pixel electrode 21 and the first electrode 31 works, and the other does not work. In other words, one of the first transverse electric field and the vertical electric field E1 is turned on, and the other is turned off, so as to avoid mutual interference between the first transverse electric field and the vertical electric field E1, thereby affecting the normal display of the display panel 100.

[0061] Moreover, in one embodiment, the second electrode 26 may be the common electrode 27 of the array component 20, the second electrode 26 may also be the pixel electrode 21 of the array component 20 (in this case, the pixel electrode 21 may work alone or simultaneously with the first electrode 31), and the second electrode 26 may also be a separately arranged electrode structure, and be layered with the common electrode 27 of the array component 20 and the pixel electrode 21. All of the above belong to the embodiments of the present application and should not be construed as limitations on the present application.

[0062] It should be noted that, in this embodiment, the vertical electric field E1 is used to control the rotation of the liquid crystal molecules 11 in the cross-sectional direction of the display panel 100 (eg Figure 7 As shown, the liquid crystal molecules 11 rotate in the XZ plane).

[0063] The display panel 100 includes but is not limited to an IPS mode display panel or a FFS mode display panel.

[0064] Please refer to Figure 8 , Figure 8 It is a schematic diagram of the electrode structure in an IPS display panel provided in an embodiment of the present application. In one embodiment, when the display panel 100 is an IPS mode display panel, the pixel electrodes 21 and the common electrodes 27 of the array assembly 20 are arranged in the same layer and spaced apart. The pixel electrodes 21 and the common electrodes 27 are alternately arranged in sequence and spaced apart, and the extension direction of the alignment electrode 22 is perpendicular to the extension direction of the pixel electrode 21, so as to avoid the alignment voltage of the alignment electrode 22 being blocked by the pixel electrode 21, so as to improve the control ability of the alignment electrode 22 over the liquid crystal molecules 11.

[0065] Please refer to Fig. 9 , Fig. 9 1 is a schematic diagram of an electrode structure in an FFS display panel provided in an embodiment of the present application. In one embodiment, when the display panel 100 is an FFS mode display panel 100, the pixel electrode 21 and the common electrode 27 of the array assembly 20 are arranged in layers. The pixel electrode 21 and the common electrode 27 are arranged in layers, and the common electrode layer 27 can be arranged in a whole layer layout, which can increase the intensity of the deflection liquid crystal electric field formed by the pixel electrode 21 and the common electrode 27, thereby improving the display effect of the display panel 100 during normal display.

[0066] Please refer to Fig.10 , Fig.10 The present application also provides a display device 1000, which includes a backlight module 200 and a display panel 100, wherein the backlight module 200 is used to emit visible light to the display panel 100, and the display panel 100 is used to transmit the visible light and form a display screen.

[0067] In the display device 1000 provided in the present application, the liquid crystal layer 10 includes a plurality of liquid crystal molecules 11, and the liquid crystal layer 10 is arranged on the array component 20, and the array component 20 includes a pixel electrode 21 and an alignment electrode 22 arranged in layers, and the pixel electrode 21 is used to form a first transverse electric field with a common electrode 27 in a first state, and the first transverse electric field controls the deflection of the plurality of liquid crystal molecules 11 so that light can pass through the liquid crystal layer 10; the alignment electrode 22 is used to form a second transverse electric field E2 in a second state, and the second transverse electric field E2 corrects the angles of the plurality of liquid crystal molecules 11 close to the pixel electrode 21, which can improve the problem of insufficient alignment ability of the alignment film for the liquid crystal molecules 11 in the related art, avoid problems such as afterimage or insufficient display brightness in the display of the display device 1000, and is beneficial to improving the display contrast of the display device 1000.

[0068] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel has a first state and a second state, and the display panel includes: a liquid crystal layer, comprising a plurality of liquid crystal molecules; and An array component, wherein the liquid crystal layer is arranged on the array component, and the array component includes pixel electrodes and alignment electrodes arranged in layers, wherein the alignment electrode is arranged on the side of the pixel electrode away from the liquid crystal layer, and the pixel electrode is used to form a first transverse electric field with a common electrode in a first state, and the first transverse electric field controls the deflection of a plurality of the liquid crystal molecules so that light can pass through the liquid crystal layer; and the alignment electrode is used to form a second transverse electric field in a second state, and the second transverse electric field corrects the angles of the plurality of liquid crystal molecules close to the pixel electrode.

2. The display panel according to claim 1, characterized in that: The pixel electrode and the alignment electrode work in a time-sharing manner.

3. The display panel according to claim 1, characterized in that: There are a plurality of alignment electrodes, and the plurality of alignment electrodes are sequentially arranged at intervals along a preset direction, and the preset direction is the electric field direction of the second transverse electric field.

4. The display panel according to claim 2, characterized in that: The display panel also includes a scan line, which is electrically connected to the pixel electrode and the alignment electrode respectively, and is used to provide a scan signal to the pixel electrode and the alignment electrode; the display panel also includes a first data line and a second data line, the first data line is electrically connected to the pixel electrode and is used to provide a first data signal, the second data line is electrically connected to the alignment electrode and is used to provide a second data signal, and the first data signal and the second data signal are used to drive the pixel electrode and the alignment electrode to work in time sharing.

5. The display panel according to claim 4, characterized in that: The array component comprises a pixel thin film transistor and an alignment thin film transistor. The pixel thin film transistor is electrically connected to the pixel electrode, the alignment thin film transistor is electrically connected to the alignment electrode, and the pixel thin film transistor and the alignment thin film transistor share a gate.

6. The display panel according to any one of claims 1 to 5, characterized in that: The display panel further comprises a color film component, which is arranged on a side of the liquid crystal layer away from the array component, and is used for transmitting light emitted from the liquid crystal layer and forming a display image.

7. The display panel according to claim 6, characterized in that: The color film component includes a first electrode, the array component includes a second electrode, the second electrode and the pixel electrode are arranged in layers, the first electrode and the second electrode are used to form a vertical electric field, and the vertical electric field corrects the angles of the plurality of liquid crystal molecules.

8. The display panel according to claim 7, characterized in that: The pixel electrode and the first electrode work in a time-sharing manner.

9. The display panel according to claim 1, characterized in that: When the display panel is an IPS mode display panel, the pixel electrodes and common electrodes of the array assembly are arranged in the same layer with spacing; when the display panel is an FFS mode display panel, the pixel electrodes and common electrodes of the array assembly are arranged in layers.

10. A display device, characterized in that: It comprises a backlight module and the display panel according to any one of claims 1 to 9, wherein the backlight module is used for emitting visible light to the display panel.

Citation Information

Patent Citations

  • In-plane switching mode liquid crystal display device

    CN103728792A

  • Array substrate, display panel and display device.

    CN104317126A

  • Liquid crystal display panel and driving method thereof

    CN113359358A

  • Method and apparatus for manufacturing liquid crystal apparatus

    JP2010085899A

  • Liquid crystal device, electro-optical device, and driving method of liquid crystal device

    JP2010145811A