CN115469488A - display panel - Google Patents

Abstract

The invention provides a display panel, which comprises a first substrate, a second substrate, a plurality of pixel structures and a liquid crystal layer. The pixel structure has a first display region and a second display region. The pixel structure comprises a first active element, a second active element, a first sub-pixel electrode, a second sub-pixel electrode, a first common electrode and a second common electrode. The first sub-pixel electrode and the first common electrode are arranged on the first substrate and are positioned in the first display area. The second sub-pixel electrode and the second common electrode are respectively arranged on the first substrate and the second substrate and are positioned in the second display area. The liquid crystal layer is arranged between the first substrate and the second substrate and is provided with a first part arranged in the first display area and a second part arranged in the second display area. The first sub-pixel electrode and the first common electrode are used for driving the first part of the liquid crystal layer to rotate. The second sub-pixel electrode and the second common electrode are used for driving the second part of the liquid crystal layer to rotate.

Description

display panel

technical field

The present invention relates to a display technology, in particular to a display panel.

Background technique

In order to meet the viewing requirements of multiple people, the display device generally has a display effect with a wide viewing angle. However, in some special occasions, when it is necessary to browse private webpages, confidential information or personal account input, the display effect of the wide viewing angle makes it easy for the display screen to be peeped from the side and cause information leakage. In order to achieve the effect of temporary anti-peeping, a solution of setting a light control film (Light Control Film, LCF) in front of the display panel to filter out light with a large viewing angle is proposed. When privacy protection is not required, the light control film is manually removed from the front of the display panel. Although this light control film has an anti-peeping effect, its handling convenience still needs to be improved. Therefore, another anti-peeping display device equipped with a viewing angle switch is proposed. Wherein, although the viewing angle switcher can switch between different viewing angle ranges by electronic control to realize the electronically switchable anti-peeping effect, the arrangement of the viewing angle switcher will increase the overall thickness and production cost of the display device.

Contents of the invention

The present invention is directed to a display panel, which is very convenient to switch between different display modes, and has advantages of thinner appearance and lower cost.

According to an embodiment of the present invention, a display panel includes a first substrate, a second substrate, a plurality of pixel structures and a liquid crystal layer. The second substrate is opposite to the first substrate. Each of these pixel structures has a first display area and a second display area. Each pixel structure includes a first active element, a second active element, a first sub-pixel electrode, a second sub-pixel electrode, a first common electrode and a second common electrode. The first sub-pixel electrode and the first common electrode are arranged on the first substrate and located in the first display area. The first sub-pixel electrode is electrically connected to the first active device. The second sub-pixel electrode and the second common electrode are respectively disposed on the first substrate and the second substrate, and are located in the second display area. The second sub-pixel electrode is electrically connected to the second active device and electrically insulated from the first sub-pixel electrode. The liquid crystal layer is disposed between the first substrate and the second substrate, and has a first portion disposed in the first display area and a second portion disposed in the second display area. The first sub-pixel electrode and the first common electrode are used to drive the first part of the liquid crystal layer to rotate. The second sub-pixel electrode and the second common electrode are used to drive the second part of the liquid crystal layer to rotate.

In the display panel according to an embodiment of the present invention, the first sub-pixel electrode has a plurality of first fingers. The first common electrode has a plurality of second fingers. The first finger parts and the second finger parts are arranged alternately, and the first subpixel electrode is coplanar with the first common electrode.

In the display panel according to an embodiment of the present invention, the first sub-pixel electrode has a plurality of slits, and the orthographic projection of the first common electrode on the first substrate partially overlaps the orthographic projection of the plurality of slits on the first substrate.

In the display panel according to an embodiment of the present invention, the second common electrode has an opening overlapping the second sub-pixel electrode.

In the display panel according to the embodiment of the present invention, each pixel structure further includes a protruding structure disposed on the second substrate and located in the second display area. The second common electrode overlaps the protruding structure.

In an embodiment according to the invention, the display panel is adapted to operate in the first display mode or the second display mode. When the display panel operates in the first display mode, the first active element is enabled. When the display panel operates in the second display mode, the first active element is disabled and the second active element is enabled.

In the display panel according to the embodiment of the present invention, when the display panel operates in the first display mode, the second active element is enabled.

In the display panel according to an embodiment of the present invention, when the display panel operates in the first display mode, it has a first viewing angle range in a viewing angle control direction. When the display panel operates in the second display mode, it has a second viewing angle range in the viewing angle control direction, and the second viewing angle range is smaller than the first viewing angle range.

In an embodiment according to the present invention, the display panel further includes a first alignment layer and a second alignment layer. The first alignment layer is arranged between the liquid crystal layer and the first substrate, and has the same alignment direction in the first display area and the second display area. The second alignment layer is arranged between the liquid crystal layer and the second substrate, and has the same alignment direction in the first display area and the second display area.

In an embodiment according to the present invention, the display panel further includes a first polarizing layer and a second polarizing layer. The first polarizing layer and the second polarizing layer are respectively arranged on opposite sides of the liquid crystal layer. The transmission axis of the first polarizing layer is perpendicular to the transmission axis of the second polarizing layer, and the alignment direction of the first alignment layer is parallel to the alignment direction of the second alignment layer or perpendicular to the transmission axis of the first polarizing layer.

Based on the above, in the display panel according to an embodiment of the present invention, the pixel structure has two sub-pixel electrodes that are electrically independent from each other. The two parts of the liquid crystal layer overlapping the two sub-pixel electrodes are operated in different driving modes under different configuration combinations of the sub-pixel electrodes and common electrodes, and produce different viewing angle ranges, thereby increasing the difference between different display modes. Switching convenience. On the other hand, the display panel of this embodiment can have an adjustable viewing angle range without additional optical films or viewing angle switchers, and thus also has a thinner appearance and better cost advantages.

Description of drawings

FIG. 1 is a schematic top view of a display panel according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the display panel of FIG. 1;

FIG. 3A is an enlarged schematic view of the first sub-pixel electrode in FIG. 1;

FIG. 3B is an enlarged schematic view of the second sub-pixel electrode in FIG. 1;

FIG. 3C is an enlarged schematic view of the second common electrode of FIG. 1;

FIG. 4 is a light intensity distribution diagram when the display panel of FIG. 1 operates in a second display mode;

5A and 5B are schematic diagrams of the display panel of FIG. 1 operating in a first display mode and a second display mode, respectively;

FIG. 6 is a schematic diagram of the display panel of FIG. 1 operating in a first display mode in another embodiment;

7 is a schematic cross-sectional view of a display panel according to a second embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a display panel according to a third embodiment of the present invention.

Explanation of reference signs

10, 11, 12: display panel;

101: the first substrate;

102: a second substrate;

110: gate insulating layer;

120, 130: insulating layer;

141: the first alignment layer;

141AD1, 141AD2, 142AD1, 142AD2: alignment direction

142: the second alignment layer;

150: liquid crystal layer;

151: first part;

152: second part;

161: the first polarizing layer;

162: second polarizing layer;

190: protruding structure;

CE1, CE1A: the first common electrode;

CE1f: second finger;

CE2, CE2A: the second common electrode;

DA1: the first display area;

DA2: the second display area;

DE: drain;

DL: data line;

GE: grid;

GL1: the first scan line;

GL2: second scan line;

OP: opening;

PA: pixel area;

PE1, PE1A: first sub-pixel electrodes;

PE1f: first finger;

PE2: the second sub-pixel electrode;

PX, PX-A, PX-B: pixel structure;

SC: semiconductor pattern;

SE: source;

ST: gap;

T1: the first active element;

T2: the second active element;

TA1, TA2: penetrating shaft;

VR1: first viewing angle range;

VR2: Second viewing angle range;

X, Y, Z: directions.

detailed description

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and description to refer to the same or like parts.

FIG. 1 is a schematic top view of a display panel according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the display panel in FIG. 1 . FIG. 3A is an enlarged schematic view of the first sub-pixel electrode in FIG. 1 . FIG. 3B is an enlarged schematic view of the second sub-pixel electrode in FIG. 1 . FIG. 3C is an enlarged schematic diagram of the second common electrode in FIG. 1 . FIG. 4 is a light intensity distribution diagram when the display panel of FIG. 1 operates in a second display mode. 5A and 5B are schematic views of the display panel of FIG. 1 operating in a first display mode and a second display mode, respectively. FIG. 6 is a schematic diagram of the display panel of FIG. 1 operating in a first display mode in another embodiment. For the sake of clarity, FIG. 1 omits the second substrate 102, the insulating layer 120, the insulating layer 130, the first alignment layer 141, the second alignment layer 142, the liquid crystal layer 150, the first polarizing layer 161, and the second polarizing layer in FIG. 162.

Referring to FIG. 1 and FIG. 2 , the display panel 10 includes a first substrate 101 , a second substrate 102 , a plurality of pixel structures PX and a liquid crystal layer 150 . These pixel structures PX are disposed on the first substrate 101 . The liquid crystal layer 150 is disposed between the first substrate 101 and the second substrate 102 . In this embodiment, the first substrate 101 is, for example, a pixel circuit substrate, and the pixel circuit substrate may include a plurality of data lines DL and a plurality of scan lines. These data lines DL are arranged along the direction X and extend in the direction Y. These scan lines are arranged along the direction Y and extend in the direction X. The data lines DL intersect the scan lines and define a plurality of pixel areas PA, and the pixel structures PX are respectively disposed in the pixel areas PA.

In this embodiment, the scan lines include, for example, a plurality of first scan lines GL1 and a plurality of second scan lines GL2 , and the first scan lines GL1 and the second scan lines GL2 are arranged alternately along the direction Y. Based on the consideration of electrical conductivity, the scan lines and the data lines DL are generally made of metal materials (such as molybdenum, aluminum, copper, nickel, or a combination thereof), but not limited thereto.

The pixel structure PX includes a first active element T1, a second active element T2, a first sub-pixel electrode PE1, a first common electrode CE1, a second sub-pixel electrode PE2 and a second common electrode CE2. The first sub-pixel electrode PE1 and the second sub-pixel electrode PE2 are electrically independent from each other. The first active device T1 is electrically connected to one of the plurality of first scan lines GL1 , one of the plurality of data lines DL and the corresponding first sub-pixel electrode PE1 . The second active device T2 is electrically connected to one of the plurality of second scanning lines GL2 , one of the plurality of data lines DL and the corresponding second sub-pixel electrode PE2 . More specifically, the potentials of the first sub-pixel electrode PE1 and the second sub-pixel electrode PE2 of the pixel structure PX can be controlled via the first active element T1 and the second active element T2 respectively. In this embodiment, the first sub-pixel electrode PE1 and the second sub-pixel electrode PE2 of the same pixel structure PX can be electrically connected to the same data line DL, but not limited thereto. In other embodiments, two sub-pixel electrodes of the same pixel structure PX may be electrically connected to different data lines DL respectively.

In this embodiment, the sub-pixel electrodes and common electrodes of the pixel structure PX are, for example, light-transmitting electrodes, and the material of the light-transmitting electrodes includes metal oxides (for example: indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, or other suitable oxides, or a stacked layer of at least two of the above), but not limited thereto. In other embodiments, the sub-pixel electrodes of the pixel structure PX may also be reflective electrodes, and the materials of the reflective electrodes include metals, alloys, nitrides of metal materials, oxides of metal materials, oxynitrides of metal materials, or other suitable materials, or stacked layers of metal materials and other conductive materials. In this embodiment, the first active device T1 and the second active device T2 are, for example, amorphous silicon (a-Si) thin film transistors (thin film transistor, TFT), but not limited thereto. In other embodiments, the active element of the pixel structure PX may also be a polysilicon (Polysilicon) thin film transistor or a metal-oxide semiconductor (Metal-Oxide Semiconductor, MOS) transistor.

For example, the method for forming the first active device T1 and the second active device T2 may include the following steps: sequentially forming a gate GE, a gate insulating layer 110, a semiconductor pattern SC, a source SE and a drain on the first substrate 101. Pole DE, but not limited to this. The semiconductor pattern SC overlaps the gate GE in a direction (eg, direction Z) perpendicular to the first substrate 101 . The source SE and the drain DE overlap the semiconductor pattern SC, and are electrically connected to two different regions of the semiconductor pattern SC. In this embodiment, the gate GE is optionally disposed under the semiconductor pattern SC to form a bottom-gate TFT, but the invention is not limited thereto. In other embodiments, the gate GE may also be disposed above the semiconductor pattern SC to form a top-gate TFT. It should be noted that the gate GE, the source SE, the drain DE, the semiconductor pattern SC and the gate insulating layer 110 can be any gate, any source known to those skilled in the art for display panels, respectively. electrode, any drain, any semiconductor pattern, and any gate insulating layer, and the gate GE, source SE, drain DE, semiconductor pattern SC, and gate insulating layer 110 can be implemented by any technology in the technical field It can be formed by any method known to the personnel, so it will not be repeated here.

In this embodiment, the pixel structure PX has a first display area DA1 and a second display area DA2. The first sub-pixel electrode PE1 and the first common electrode CE1 of the pixel structure PX are located in the first display area DA1 , and the second sub-pixel electrode PE2 and the second common electrode CE2 of the pixel structure PX are located in the second display area DA2 . It should be noted that the first part 151 of the liquid crystal layer 150 located in the first display area DA1 and the second part 152 located in the second display area DA2 operate in different driving modes. For example, in this embodiment, the first part 151 of the liquid crystal layer 150 is driven in a fringe field switching (FFS) mode, and the second part 152 is driven in an electrically controlled birefringence (ECB) mode. Mode to drive, but not limited to this.

Therefore, the first sub-pixel electrode PE1 and the first common electrode CE1 of the pixel structure PX are disposed on the first substrate 101 . An insulating layer 120 is disposed between the first common electrode CE1 and the first active device T1 . Another insulating layer 130 is disposed between the first common electrode CE1 and the first sub-pixel electrode PE1, and the first sub-pixel electrode PE1 penetrates through the insulating layer 120 and the insulating layer 130 to electrically connect the drain DE of the first active element T1 . Please refer to FIG. 3A and FIG. 3B at the same time. In this embodiment, the first sub-pixel electrode PE1 has a plurality of slits ST, and the orthographic projection of the first common electrode CE1 on the first substrate 101 overlaps with these slits ST. An orthographic projection on a substrate 101 . The material of the insulating layer 120 and the insulating layer 130 may include an inorganic insulating material (such as silicon oxide or silicon nitride), but is not limited thereto.

Different from the electrode configuration in the first display area DA1, the second sub-pixel electrode PE2 and the second common electrode CE2 in which the pixel structure PX is located in the second display area DA2 are arranged on the first substrate 101 and the second substrate 102 respectively. superior. The second sub-pixel electrode PE2 is disposed on the insulating layer 120 and the insulating layer 130 , and penetrates through the insulating layer 120 to be electrically connected to the drain DE of the second active device T2 . Referring to FIG. 1 , FIG. 2 and FIG. 3C , the second common electrode CE2 has an opening OP overlapping the second sub-pixel electrode PE2 in a direction perpendicular to the first substrate 101 (eg, direction Z). For example, in this embodiment, the orthographic profile of the opening OP of the second common electrode CE2 on the first substrate 101 is a circle, but it is not limited thereto. In other embodiments, the orthographic profile of the opening OP of the second common electrode CE2 on the first substrate 101 may also be a rhombus, a square, a regular polygon, or other suitable shapes.

In this embodiment, a plurality of liquid crystal molecules (not shown) of the liquid crystal layer 150 are arranged parallel to the first substrate 101 and the second substrate 102 when not driven by an electric field. That is, the display panel 10 may further include a first alignment layer 141 and a second alignment layer 142 . The first alignment layer 141 is disposed between the liquid crystal layer 150 and the first substrate 101 . The second alignment layer 142 is disposed between the liquid crystal layer 150 and the second substrate 102 . In this embodiment, the alignment direction of the first alignment layer 141 is antiparallel to the alignment direction of the second alignment layer 142 . Here, the alignment direction of the alignment layer is, for example, the rubbing direction of the fluff cloth on the surface of the alignment layer during the alignment process. For example, in this embodiment, the alignment direction of the first alignment layer 141 and the alignment direction of the second alignment layer 142 may be substantially parallel to the extension direction of the data line DL (such as the direction Y), but not limited thereto .

The display panel 10 also includes a first polarizing layer 161 and a second polarizing layer 162 . The two polarizing layers are respectively disposed on opposite sides of the liquid crystal layer 150 . For example, the first polarizing layer 161 and the second polarizing layer 162 may be respectively disposed on two surfaces of the first substrate 101 and the second substrate 102 facing away from each other, but not limited thereto. It should be noted that the first polarizing layer 161 and the second polarizing layer 162 respectively have a transmission axis TA1 and a transmission axis TA2, and the alignment direction of the first alignment layer 141 (such as alignment direction 141AD1) and the alignment direction of the second alignment layer 142 The alignment direction (for example, the alignment direction 142AD1 ) is parallel to or perpendicular to the transmission axis TA1 of the first polarizing layer 161 (or the transmission axis TA2 of the second polarizing layer 162 ).

Firstly, the display panel 10 of this embodiment is suitable to operate in the first display mode or the second display mode. When the display panel 10 operates in the first display mode, it has a first viewing angle range VR1 (as shown in FIG. 5A ) in an alignment direction (eg, direction X) perpendicular to the alignment layer. When the display panel 10 operates in the second display mode, it has a second viewing angle range VR2 (as shown in FIG. 5B ) in the alignment direction perpendicular to the alignment layer, and the second viewing angle range VR2 is smaller than the first viewing angle range. VR1. That is to say, the display panel 10 has an adjustable viewing angle range in the alignment direction perpendicular to the alignment layer. Therefore, a direction perpendicular to the alignment direction of the alignment layer (for example, direction X) can be defined as the viewing angle control direction of the display panel 10, and the first display mode and the second display mode are, for example, a non-peep-proof display mode and a privacy-proof display mode, respectively.

Please refer to FIG. 5A at the same time. When the display panel 10 is operating in the first display mode, the first active element T1 and the first sub-pixel electrode PE1 are enabled, and a voltage generated between the first sub-pixel electrode PE1 and the first common electrode CE1 The fringe electric field of the liquid crystal layer 150 will drive most of the liquid crystal molecules (not shown) in the first part 151 of the liquid crystal layer 150 to rotate on a plane parallel to the first substrate 101 (for example, the XY plane). At this time, the first display area DA1 of the pixel structure PX has a larger first viewing angle range VR1 in the viewing angle control direction (ie, the direction X). It should be noted that in this embodiment, when the display panel 10 is operating in the first display mode, the second active element T2 is optionally enabled to increase the total viewing angle of the display panel 10 within the first viewing angle range VR1. Brightness of light. However, the present invention is not limited thereto. In other embodiments, when the display panel 10 operates in the first display mode, the second active element T2 and the second sub-pixel electrode PE2 may be disabled (as shown in FIG. 6 ), In order to improve the brightness uniformity of the display panel 10 at different viewing angles within the first viewing angle range VR1.

Please refer to FIG. 5B at the same time. When the display panel 10 operates in the second display mode, the first active element T1 and the first sub-pixel electrode PE1 are disabled, and the second active element T2 and the second sub-pixel electrode PE2 are enabled. . At this time, the electric field generated between the second sub-pixel electrode PE2 and the second common electrode CE2 in the second display area DA2 will drive most of the liquid crystal molecules (not shown) in the second part 152 of the liquid crystal layer 150 to deviate from each other. Rotate in the XY plane. In this embodiment, since the second common electrode CE2 has the opening OP overlapping the second sub-pixel electrode PE2, it can avoid the phenomenon of light leakage at a large viewing angle in the viewing angle control direction when the second part 152 of the liquid crystal layer 150 is driven. And it has a smaller second viewing angle range VR2 (such as the viewing angle range along the horizontal direction in FIG. 4 ).

In other words, in this embodiment, the first part 151 of the liquid crystal layer 150 located in the first display area DA1 and the second part 152 located in the second display area DA2 are realized by using different combinations of sub-pixel electrodes and common electrodes. The operation of different driving modes further makes the display panel 10 have different viewing angle ranges in the first display area DA1 and the second display area DA2 . Therefore, the viewing angle range of the display panel 10 can be changed by enabling or disabling the first active element T1 or the second active element T2 of the pixel structure PX, thereby increasing the convenience of switching between different display modes. From another point of view, the display panel 10 can have adjustable viewing angle range without additional optical films (such as light control film LCF) and viewing angle switcher. Therefore, it also has a thinner appearance and better cost advantages.

In particular, in this embodiment, the alignment layer has the same alignment direction in the first display area DA1 and the second display area DA2. For example, the first alignment layer 141 has an alignment direction 141AD1 and an alignment direction 141AD2 in the first display area DA1 and the second display area DA2 respectively, and the alignment direction 141AD1 is the same as the alignment direction 141AD2. Similarly, the second alignment layer 142 has an alignment direction 142AD1 and an alignment direction 142AD2 in the first display area DA1 and the second display area DA2 respectively, and the alignment direction 142AD1 is the same as the alignment direction 142AD2 . Accordingly, increasing the complexity of the alignment process can be avoided. However, the present invention is not limited thereto. In other embodiments, in order to further expand the difference between the first viewing angle range VR1 of the first display area DA1 and the second viewing angle range VR2 of the second display area DA2, an alignment layer is arranged between the first display area DA1 and the second display area DA2 can also have different alignment directions.

Some other embodiments will be listed below to describe the present disclosure in detail, wherein the same components will be marked with the same symbols, and the description of the same technical content will be omitted. For the omitted parts, please refer to the above-mentioned embodiments, and will not be repeated below.

FIG. 7 is a schematic cross-sectional view of a display panel according to a second embodiment of the present invention. Referring to FIG. 7 , the difference between the display panel 11 of this embodiment and the display panel 10 of FIG. 2 is that the second common electrode CE2A of the display panel 11 does not have the opening OP of the second common electrode CE2 of FIG. 2 . Therefore, when the second active element T2 is enabled, in order to generate an electric field component between the second sub-pixel electrode PE2 and the second common electrode CE2A that deviates from the direction Z (that is, the direction perpendicular to the first substrate 101), the display panel 11 The pixel structure PX-A may further include a protrusion structure 190 . The protruding structure 190 is disposed on the second substrate 102 and located in the second display area DA2. It is particularly noted that the protruding structure 190 overlaps the second sub-pixel electrode PE2 in a direction perpendicular to the first substrate 101 .

FIG. 8 is a schematic cross-sectional view of a display panel according to a third embodiment of the present invention. Please refer to FIG. 8, the difference between the display panel 12 of this embodiment and the display panel 10 of FIG. drive. For example, in this embodiment, the first sub-pixel electrode PE1A of the pixel structure PX-B has a plurality of first finger portions PE1f, and the first common electrode CE1A has a plurality of second finger portions CE1f. The first finger portions PE1f and the second finger portions CE1f are alternately arranged, and the first sub-pixel electrode PE1A is coplanar with the first common electrode CE1A. Since the driving method of the liquid crystal layer 150 in the first display area DA1 and the second display area DA2 in this embodiment is similar to that of the display panel 10 in FIG. Let me repeat.

As mentioned above, in the display panel according to an embodiment of the present invention, the pixel structure has two sub-pixel electrodes that are electrically independent from each other. The two parts of the liquid crystal layer overlapping the two sub-pixel electrodes are operated in different driving modes under different configuration combinations of the sub-pixel electrodes and common electrodes, and produce different viewing angle ranges, thereby increasing the difference between different display modes. Switching convenience. On the other hand, the display panel of this embodiment can have an adjustable viewing angle range without additional optical films or viewing angle switchers, and thus also has a thinner appearance and better cost advantages.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. A display panel, comprising:

a first substrate;

a second substrate disposed opposite to the first substrate;

a plurality of pixel structures each having a first display area and a second display area, each of the plurality of pixel structures comprising:

a first active device and a second active device;

a first sub-pixel electrode and a first common electrode disposed on the first substrate and located in the first display region, the first sub-pixel electrode being electrically connected to the first active device; and

a second sub-pixel electrode and a second common electrode respectively disposed on the first substrate and the second substrate and located in the second display region, the second sub-pixel electrode being electrically connected to the second active device and electrically insulated from the first sub-pixel electrode; and

the liquid crystal layer is arranged between the first substrate and the second substrate and provided with a first part arranged in the first display area and a second part arranged in the second display area, wherein the first sub-pixel electrode and the first common electrode are used for driving the first part of the liquid crystal layer to rotate, and the second sub-pixel electrode and the second common electrode are used for driving the second part of the liquid crystal layer to rotate.

2. The display panel according to claim 1, wherein the first sub-pixel electrode has a plurality of first fingers, the first common electrode has a plurality of second fingers, the plurality of first fingers and the plurality of second fingers are alternately arranged, and the first sub-pixel electrode is coplanar with the first common electrode.

3. The display panel of claim 1, wherein the first sub-pixel electrode has a plurality of slits, and an orthographic projection of the first common electrode on the first substrate partially overlaps an orthographic projection of the plurality of slits on the first substrate.

4. The display panel according to claim 1, wherein the second common electrode has an opening overlapping the second subpixel electrode.

5. The display panel of claim 1, wherein each of the plurality of pixel structures further comprises:

and the bulge structure is arranged on the second substrate and positioned in the second display area, and the second common electrode is overlapped with the bulge structure.

6. The display panel of claim 1, adapted to operate in a first display mode or a second display mode, wherein the first active device is enabled when the display panel operates in the first display mode, and wherein the first active device is disabled and the second active device is enabled when the display panel operates in the second display mode.

7. The display panel according to claim 6, wherein the second active device is enabled when the display panel operates in the first display mode.

8. The display panel according to claim 6, wherein the display panel has a first viewing angle range in a viewing angle control direction when operating in the first display mode, and has a second viewing angle range in the viewing angle control direction when operating in the second display mode, and the second viewing angle range is smaller than the first viewing angle range.

9. The display panel according to claim 8, further comprising:

a first alignment layer disposed between the liquid crystal layer and the first substrate and having the same alignment direction in the first display region and the second display region; and

and the second alignment layer is arranged between the liquid crystal layer and the second substrate and has the same alignment direction in the first display area and the second display area.

10. The display panel according to claim 9, further comprising:

the liquid crystal display device comprises a liquid crystal layer, a first polarizing layer, a second polarizing layer, a first alignment layer and a second alignment layer, wherein the first polarizing layer and the second polarizing layer are respectively arranged on two opposite sides of the liquid crystal layer, a penetrating shaft of the first polarizing layer is perpendicular to a penetrating shaft of the second polarizing layer, and the alignment direction of the first alignment layer is parallel to or perpendicular to the alignment direction of the second alignment layer.

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