Display panel and its display control method, display device

Abstract

A display panel, its display control method, and display device are provided, belonging to the field of display technology. The display panel includes two transparent substrates disposed opposite each other, and the transparent substrates are divided into multiple pixel partitions, each pixel partition being further divided into two adjacent sub-partitions. Each pixel in each pixel partition includes a pixel circuit, and light-emitting units and liquid crystal units located in the two sub-partitions respectively. The pixel circuit can control the light-emitting state of the light-emitting unit and the deflection state of the liquid crystal molecules in the liquid crystal unit based on multiple coupled signal lines. Thus, by flexibly controlling the signals provided by the signal lines, when the light-emitting unit emits light and its corresponding sub-partition is displayed, the liquid crystal molecules do not deflect, and the corresponding sub-partition is opaque; conversely, when the light-emitting unit does not emit light and its corresponding sub-partition is not displayed, the liquid crystal molecules deflect, and the corresponding sub-partition is transparent. That is, display and light transmission are separated, avoiding light mixing and ensuring better display performance of the display panel.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display panel and its display control method and display device. Background Technology

[0002] Double-sided transparent display panels are display panels that can display images simultaneously and are transparent on both sides. They are often used in exhibition display scenarios such as train stations, airports, or shopping malls.

[0003] In related technologies, double-sided transparent display panels generally include two transparent substrates arranged opposite each other. Each transparent substrate has multiple pixel partitions, and each pixel partition has a display area and a transparent area. The display area contains pixels, each including pixel circuits and light-emitting units coupled to each other. The pixel circuits drive the light-emitting units to emit light. The transparent area does not contain light-emitting units or pixel circuits and is in a normally transparent state.

[0004] However, in related technologies, the transparent area transmits light and the display area displays the image simultaneously, which can easily cause light mixing between the transparent area and the display area, resulting in a decrease in display contrast and a poor display effect. Summary of the Invention

[0005] A display panel, its display control method, and display device are provided, which can solve the problem in related technologies where light transmission in the transparent area and the display area simultaneously exist, causing light mixing between the transparent and display areas, resulting in decreased display contrast and poor display effect. The technical solution is as follows:

[0006] On one hand, a display panel is provided, the display panel comprising:

[0007] A first transparent substrate and a second transparent substrate are disposed opposite to each other, and the first transparent substrate has a plurality of pixel partitions, each pixel partition having an adjacent first sub-partition and a second sub-partition;

[0008] The plurality of pixels are located in the plurality of pixel partitions, and the pixels located in each pixel partition include: a pixel circuit, a light-emitting unit located in the first sub-partition, and a liquid crystal unit located in the second sub-partition;

[0009] The pixel circuit is coupled to a gate line, a control line, a data line, a first power line, a second power line, a pixel electrode line, the light-emitting unit, and the liquid crystal unit, respectively. It is used to control the light-emitting state of the light-emitting unit based on the gate driving signal provided by the gate line, the data signal provided by the data line, and the first power signal provided by the first power line. It also controls the pixel electrode line to transmit a pixel voltage to the liquid crystal unit based on the gate driving signal, the control signal provided by the control line, and the second power signal provided by the second power line, so as to control the deflection state of the liquid crystal molecules in the liquid crystal unit.

[0010] Optionally, the light-emitting unit includes: a first electrode, a light-emitting layer, and a second electrode stacked sequentially;

[0011] The pixel circuit is coupled to the first electrode of the light-emitting unit and is used to transmit a light-emitting driving signal to the first electrode of the light-emitting unit based on the gate driving signal, the data signal and the first power supply signal.

[0012] The second electrode of the light-emitting unit is coupled to the second power line and is used to receive the second power signal provided by the second power line;

[0013] The light-emitting layer of the light-emitting unit is used to emit light based on the light-emitting driving signal received by the first electrode and the second power supply signal received by the second electrode.

[0014] Optionally, the liquid crystal unit includes: a first transparent electrode, a liquid crystal layer, and a second transparent electrode stacked sequentially, wherein the liquid crystal layer includes the liquid crystal molecules;

[0015] The pixel circuit is coupled to the first transparent electrode and is used to control the pixel electrode line to transmit pixel voltage to the first transparent electrode based on the gate drive signal, the control signal and the second power supply signal.

[0016] The second transparent electrode is coupled to the common electrode line and is used to receive the common voltage transmitted by the common electrode line;

[0017] The liquid crystal molecules in the liquid crystal layer are used to stop deflection when the pixel voltage received by the first transparent electrode and the common voltage received by the second transparent electrode are equal, and to deflection when the pixel voltage received by the first transparent electrode and the common voltage received by the second transparent electrode are not equal.

[0018] Optionally, the liquid crystal unit further includes:

[0019] A first alignment layer located between the first transparent electrode and the liquid crystal layer;

[0020] And a second alignment layer located between the second transparent electrode and the liquid crystal layer;

[0021] The first alignment layer and the second alignment layer are used to control the alignment of the liquid crystal molecules.

[0022] Optionally, the pixel electrode line includes: a first pixel electrode line and a second pixel electrode line, wherein the pixel voltage provided by the first pixel electrode line is equal to the common voltage received by the liquid crystal cell, and the pixel voltage provided by the second pixel electrode line is not equal to the common voltage; the pixel circuit includes:

[0023] The first pixel circuit is coupled to the gate line, the data line, the first power line and the light-emitting unit respectively, and is used to transmit a light-emitting driving signal to the light-emitting unit based on the gate driving signal, the data signal and the first power signal, so as to drive the light-emitting unit to emit light;

[0024] The second pixel circuit is coupled to the gate line, the control line, the first pixel electrode line, the second pixel electrode line, the second power supply line, and the liquid crystal cell, respectively, and is used to control the on / off state of the first pixel electrode line and the liquid crystal cell based on the gate drive signal, the control signal, and the second power supply signal, and to control the on / off state of the second pixel electrode line and the liquid crystal cell.

[0025] Optionally, the first pixel circuit includes:

[0026] A data writing sub-circuit is coupled to the gate line, the data line and the driving node respectively, and is used to control the on / off state of the data line and the driving node based on the gate driving signal;

[0027] The driving sub-circuit is coupled to the driving node, the first power line and the light-emitting unit respectively, and is used to transmit a light-emitting driving signal to the light-emitting unit based on the potential of the driving node and the first power signal.

[0028] Optionally, the data writing sub-circuit includes a first transistor; the driving sub-circuit includes a second transistor and a first capacitor.

[0029] The gate of the first transistor is coupled to the gate line, the first electrode of the first transistor is coupled to the data line, and the second electrode of the first transistor is coupled to the driving node;

[0030] The gate of the second transistor is coupled to the driving node, the first terminal of the second transistor is coupled to the first power line, and the second terminal of the second transistor is coupled to the light-emitting unit.

[0031] One end of the first capacitor is coupled to the gate of the second transistor, and the other end of the first capacitor is coupled to the second terminal of the second transistor.

[0032] Optionally, the second pixel circuit includes:

[0033] A control sub-circuit is coupled to the gate line, the second power line, the control line, and the control node, respectively, and is used to control the on / off state of the gate line and the control node based on the gate drive signal, and to control the on / off state of the second power line and the control node based on the control signal;

[0034] The first output sub-circuit is coupled to the control node, the first pixel electrode line and the liquid crystal unit respectively, and is used to control the on / off state of the first pixel electrode line and the liquid crystal unit based on the potential of the control node.

[0035] The second output sub-circuit is coupled to the control line, the second pixel electrode line and the liquid crystal cell respectively, and is used to control the on / off state of the second pixel electrode line and the liquid crystal cell based on the control signal.

[0036] Optionally, the control sub-circuit includes a third transistor and a fourth transistor; the first output sub-circuit includes a fifth transistor and a second capacitor; the second output sub-circuit includes a sixth transistor and a third capacitor.

[0037] The gate of the third transistor is coupled to the control line, the first terminal of the third transistor is coupled to the second power line, and the second terminal of the third transistor is coupled to the control node.

[0038] The gate and first terminal of the fourth transistor are both coupled to the gate line, and the second terminal of the fourth transistor is coupled to the control node;

[0039] The gate of the fifth transistor is coupled to the control node, the first electrode of the fifth transistor is coupled to the first pixel electrode line, and the second electrode of the fifth transistor is coupled to the liquid crystal cell.

[0040] One end of the second capacitor is coupled to the gate of the fifth transistor, and the other end of the second capacitor is coupled to the second terminal of the fifth transistor;

[0041] The gate of the sixth transistor is coupled to the control line, the first electrode of the sixth transistor is coupled to the second pixel electrode line, and the second electrode of the sixth transistor is coupled to the liquid crystal cell.

[0042] One end of the third capacitor is coupled to the gate of the sixth transistor, and the other end of the third capacitor is coupled to the second terminal of the sixth transistor.

[0043] Optionally, the third transistor is larger than the fourth transistor.

[0044] Optionally, the control line is shared with the first power line.

[0045] Optionally, the first pixel circuit is located in the first sub-partition, and the second pixel circuit is located in the second sub-partition.

[0046] Optionally, the display panel further includes:

[0047] Located between the first transparent substrate and the second transparent substrate, it serves as a barrier to separate adjacent pixels;

[0048] And a black matrix layer located between the first transparent substrate and the second transparent substrate, used to separate the light-emitting unit and liquid crystal unit included in each pixel partition.

[0049] On the other hand, a display control method for a display panel is provided, applied to the display panel as described in the above aspect; the method includes:

[0050] Determine whether the display panel needs to display an image;

[0051] If a display is required, a gate drive signal of the first potential is provided to the gate line, a control signal of the first potential is provided to the control line, a first power signal of the first potential is provided to the first power line, and a second power signal of the second potential is provided to the second power line. Based on the gate drive signal, the data signal provided by the data line, and the first power signal, the pixel circuit drives the light-emitting unit to emit light, so that the first sub-region displays the image. Based on the gate drive signal, the control signal, and the second power signal, the pixel electrode line is controlled to transmit a pixel voltage to the liquid crystal cell that is different from the common voltage received by the liquid crystal cell, so as to control the liquid crystal molecules in the liquid crystal cell to deflect, so that the second sub-region is in an opaque state.

[0052] If no image display is required, a gate drive signal with a first potential is provided to the gate line, a control signal with a second potential is provided to the control line, a first power signal with a second potential is provided to the first power line, and a second power signal with a second potential is provided to the second power line. Based on the gate drive signal, the data signal provided by the data line, and the first power signal, the pixel circuit stops driving the light-emitting unit to emit light, so that the first sub-partition does not display an image. Based on the gate drive signal, the control signal, and the second power signal, the pixel electrode line is controlled to transmit a pixel voltage equal to the common voltage received by the liquid crystal cell to the liquid crystal cell, so as to control the liquid crystal molecules in the liquid crystal cell to stop deflection, so that the second sub-partition is in an opaque state.

[0053] In another aspect, a display device is provided, the display device comprising: a power supply component, and a display panel as described in the preceding aspect;

[0054] The power supply component is coupled to the display panel and is used to supply power to the display panel.

[0055] In summary, the beneficial effects of the technical solutions provided by the embodiments of this disclosure can at least include:

[0056] A display panel and its display control method and display device are provided. The display panel includes two transparent substrates disposed opposite to each other, and the transparent substrates can be divided into multiple pixel partitions, each pixel partition being further divided into two adjacent sub-partitions. Each pixel in each pixel partition includes a pixel circuit, and light-emitting units and liquid crystal units located in the two sub-partitions respectively. The pixel circuit can control the light-emitting state of the light-emitting unit and the deflection state of the liquid crystal molecules in the liquid crystal unit based on multiple coupled signal lines. Thus, by flexibly controlling the signals provided by the signal lines, when the light-emitting unit emits light and its corresponding sub-partition is displayed, the liquid crystal molecules do not deflect, and the corresponding sub-partition is opaque; conversely, when the light-emitting unit does not emit light and its corresponding sub-partition is not displayed, the liquid crystal molecules deflect, and the corresponding sub-partition is transparent. That is, display and light transmission are separated, avoiding light mixing and ensuring a high display contrast and good display effect. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this disclosure;

[0059] Figure 2 This is a schematic diagram of a pixel structure provided in an embodiment of the present disclosure;

[0060] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of this disclosure;

[0061] Figure 4 This is a schematic diagram of another pixel structure provided in an embodiment of this disclosure;

[0062] Figure 5 This is a schematic diagram of another pixel structure provided in an embodiment of this disclosure;

[0063] Figure 6 This is a schematic diagram of the structure of a first pixel circuit provided in an embodiment of this disclosure;

[0064] Figure 7 This is a schematic diagram of the structure of a second pixel circuit provided in an embodiment of this disclosure;

[0065] Figure 8 This is a schematic diagram of a structure including a first pixel circuit and a second pixel circuit provided in an embodiment of this disclosure;

[0066] Figure 9 This is a flowchart of a display control method for a display panel provided in an embodiment of this disclosure;

[0067] Figure 10 This is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0069] It should be noted that the transistors used in all embodiments of this disclosure can be thin-film transistors, field-effect transistors, or other devices with similar characteristics. Based on their function in the circuit, the transistors used in the embodiments of this disclosure are mainly switching transistors. Since the source and drain of the switching transistors used here are symmetrical, their source and drain are interchangeable. In the embodiments of this disclosure, the source is referred to as the first electrode, and the drain as the second electrode. According to the configuration shown in the accompanying drawings, the middle terminal of the transistor is designated as the control electrode, also known as the gate; the signal input terminal is the source; and the signal output terminal is the drain. Furthermore, the switching transistors used in the embodiments of this disclosure can include either P-type or N-type switching transistors. A P-type switching transistor conducts when the gate is low and is cut off when the gate is high, while an N-type switching transistor conducts when the gate is high and is cut off when the gate is low. Additionally, multiple signals in various embodiments of this disclosure correspond to a first potential and a second potential. The first potential and the second potential only represent that the signal has two potential states and do not represent that the first potential or the second potential has a specific value throughout the text.

[0070] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this disclosure. Figure 1 As shown, the display panel includes:

[0071] A first transparent substrate 01 and a second transparent substrate 02 are disposed opposite to each other, and the first transparent substrate 01 has a plurality of pixel partitions A1, each pixel partition A1 having an adjacent first sub-partition A11 and a second sub-partition A12. For example, Figure 1 Only one pixel partition A1 is shown schematically.

[0072] Optionally, both the first transparent substrate 01 and the second transparent substrate 02 can be transparent glass substrates. Based on this, it can be understood that the display panel provided in this embodiment can be a double-sided transparent display panel.

[0073] Continue to refer to Figure 1 As can be seen, the display panel also includes multiple pixels 03 located in multiple pixel partitions A1. Each pixel 03 in each pixel partition A1 includes a pixel circuit 031, a light-emitting unit 032 located in the first sub-partition A11, and a liquid crystal unit 033 located in the second sub-partition A12. The pixel circuit 031 can be located in the first sub-partition A11 and / or the second sub-partition A12.

[0074] Optionally, multiple pixels 03 can be located one-to-one in multiple pixel partitions A1, that is, each pixel partition A1 can be set with one pixel 03, and different pixel partitions A1 can be set with different pixels 03. Based on this, a pixel partition A1 can also be referred to as a pixel. The light-emitting unit 032 can be an organic light-emitting diode (OLED). The liquid crystal unit 033 can include liquid crystal molecules. Figure 1 Based on, and refer to Figure 2 The schematic diagram of pixel 03 shown illustrates that:

[0075] The pixel circuit 031 is coupled to the gate line (Gate), control line (Vt), data line (Data), first power line (Vdd), second power line (Vss), pixel electrode line (Vc), light-emitting unit 032, and liquid crystal unit 033. The pixel circuit 031 controls the light-emitting state of the light-emitting unit 032 based on the gate drive signal provided by the gate line (Gate), the data signal provided by the data line (Data), and the first power signal provided by the first power line (Vdd). The pixel circuit 031 also controls the pixel electrode line (Vc) to transmit a pixel voltage to the liquid crystal unit 033 based on the gate drive signal, the control signal provided by the control line (Vt), and the second power signal provided by the second power line (Vss), thereby controlling the deflection (also called "twist") state of the liquid crystal molecules in the liquid crystal unit 033.

[0076] For example, pixel circuit 031 can transmit a light-emitting drive signal to light-emitting unit 032 based on gate drive signal, data signal, and first power supply signal, thereby driving light-emitting unit 032 to emit light, enabling the first sub-region A11 to reliably display the image. When pixel circuit 031 does not transmit a light-emitting drive signal to light-emitting unit 032, light-emitting unit 032 can remain off-light, preventing the first sub-region A11 from displaying the image. In this way, the purpose of flexibly controlling whether a pixel region A1 displays or does not display the image can be achieved. Correspondingly, the first sub-region A11 can also be referred to as the light-emitting area or the display area.

[0077] For example, the pixel circuit 031 can control the pixel electrode line Vc to transmit different pixel voltages to the liquid crystal cell 033 based on the gate drive signal, control signal, and second power supply signal, so as to control whether the liquid crystal molecules in the liquid crystal cell 033 are deflected or not.

[0078] The liquid crystal cell 033 can also receive a common voltage. Based on the deflection principle of liquid crystal molecules, it is known that when the pixel voltage is equal to the common voltage (i.e., no voltage difference), the liquid crystal molecules do not deflect. When the pixel voltage is unequal to the common voltage (i.e., a voltage difference exists), the liquid crystal molecules deflect. Furthermore, when the liquid crystal molecules do not deflect, light can pass through the transparent substrate included in the display panel, thus making the display panel transparent; when the liquid crystal molecules deflect, they can block light, preventing light from passing through the transparent substrate included in the display panel, thus making the display panel opaque. In this way, the pixel circuit 031 can drive the light-emitting unit 032 to emit light when the display panel needs to display an image, causing the first sub-region A11 to display. Simultaneously, it controls the pixel electrode line Vc to transmit a pixel voltage unequal to the common voltage to the liquid crystal cell 033, causing the liquid crystal molecules in the liquid crystal cell 033 to deflect, thereby making the second sub-region A12 opaque. Furthermore, when the display panel does not need to display an image, the pixel circuit 031 can drive the light-emitting unit 032 to not emit light, so that the first sub-region A11 is not displayed. At the same time, it controls the pixel electrode line Vc to transmit a pixel voltage equal to the common voltage to the liquid crystal unit 033, so that the liquid crystal molecules in the liquid crystal unit 033 do not deflect, thereby allowing the second sub-region A12 to transmit light. Accordingly, the second sub-region A12 can also be referred to as the light-transmitting area.

[0079] This allows for the separation of light emission and light transmission in the display panel. Firstly, it prevents light mixing caused by light transmission when displaying an image, thus improving contrast and color gamut and ensuring better display quality. Secondly, it ensures reliable light transmission when not displaying an image, achieving a transparent effect. Furthermore, each pixel zone A1 can be independently controlled to ensure optimal display performance.

[0080] In summary, this disclosure provides a display panel. The display panel includes two transparent substrates disposed opposite each other, and the transparent substrates can be divided into multiple pixel partitions, each pixel partition further divided into two adjacent sub-partitions. Each pixel in a pixel partition includes a pixel circuit, and light-emitting units and liquid crystal units located in the two sub-partitions respectively. The pixel circuit can control the light-emitting state of the light-emitting unit and the deflection state of the liquid crystal molecules in the liquid crystal unit based on multiple coupled signal lines. Thus, by flexibly controlling the signals provided by the signal lines, when the light-emitting unit emits light and its corresponding sub-partition is displayed, the liquid crystal molecules do not deflect, and the corresponding sub-partition is opaque; conversely, when the light-emitting unit does not emit light and its corresponding sub-partition is not displayed, the liquid crystal molecules deflect, and the corresponding sub-partition is transparent. That is, display and light transmission are separated, avoiding light mixing and ensuring a high display contrast and good display effect.

[0081] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of this disclosure. For example... Figure 3 As shown, the light-emitting unit 032 may include: a first electrode 0321, a light-emitting layer 0322, and a second electrode 0323 stacked in sequence.

[0082] Optionally, in the first electrode 0321 and the second electrode 0322, one electrode can be an anode and the other electrode can be a cathode. Correspondingly, the light-emitting unit 032 can be the OLED described above.

[0083] For example, in this embodiment of the disclosure, the first electrode 0321 shown can be a cathode; the second electrode 0322 can be an anode. Furthermore, the first electrode 0321, the light-emitting layer 0322, and the second electrode 0323 shown can be sequentially stacked in a direction away from the first transparent substrate 01 (or, alternatively, closer to the second transparent substrate 02).

[0084] The pixel circuit 031 can be coupled to the first electrode 0321 of the light-emitting unit 032, and can be used to transmit a light-emitting driving signal (e.g., driving current) to the first electrode 0321 of the light-emitting unit 032 based on the gate driving signal, the data signal and the first power supply signal.

[0085] The second electrode 0323 of the light-emitting unit 032 can be coupled to the second power line Vss. Figure 3 (Not shown), and can be used to receive the second power signal provided by the second power line Vss. Optionally, the second power line Vss coupled to the light-emitting unit 032 can be shared with the ground line GND, that is, the second pole 0323 of the light-emitting unit 032 can be grounded.

[0086] The light-emitting layer 0322 of the light-emitting unit 032 can emit light based on the light-emitting driving signal received by the first electrode 0321 and the second power supply signal received by the second electrode 0323. For example, the light-emitting layer 0322 can emit light under the action of the voltage difference between the light-emitting driving signal and the second power supply signal.

[0087] Optional, continue to refer to Figure 3 It can also be seen that the liquid crystal unit 033 may include: a first transparent electrode 0331, a liquid crystal layer 0332, and a second transparent electrode 0333 stacked sequentially. The liquid crystal layer 0332 may include liquid crystal molecules. For example, Figure 3 The first transparent electrode 0331, the liquid crystal layer 0332, and the second transparent electrode 0333 shown are stacked sequentially in a direction away from the first transparent substrate 01 (or closer to the second transparent substrate 02).

[0088] Optionally, the materials of the first transparent electrode 0331 and the second transparent electrode 0332 may include indium tin oxide (ITO). Accordingly, the first transparent electrode 0331 may be referred to as 1ITO; and the second transparent electrode 0332 may be referred to as 2ITO.

[0089] The pixel circuit 031 can be coupled to the first transparent electrode 0331. Figure 3 (Not shown), and can be used to control the pixel electrode line Vc to transmit pixel voltage to the first transparent electrode 0331 based on the gate drive signal, control signal, and second power supply signal. Accordingly, the first transparent electrode 0331 (i.e., 1ITO) can also be referred to as the pixel electrode.

[0090] The second transparent electrode 0333 can be coupled to the common electrode line Vcom. Figure 3 (Not shown), and can be used to receive the common voltage transmitted by the common electrode line Vcom. Accordingly, the second transparent electrode (i.e., 2ITO)0333 can also be referred to as the common electrode.

[0091] The liquid crystal molecules in the liquid crystal layer 0332 can be used to stop deflection when the pixel voltage received by the first transparent electrode 0331 and the common voltage received by the second transparent electrode 0333 are equal, and can be deflected when the pixel voltage received by the first transparent electrode 0331 and the common voltage received by the second transparent electrode 0333 are not equal.

[0092] Optional, continue to refer to Figure 3 It can also be seen that the liquid crystal unit 033 described in the embodiments of this disclosure may further include:

[0093] The first alignment layer 0334 is located between the first transparent electrode 0331 and the liquid crystal layer 0332.

[0094] And a second alignment layer 0335 located between the second transparent electrode 0333 and the liquid crystal layer 0332.

[0095] The first alignment layer 0334 and the second alignment layer 0335 can be used to control the arrangement of liquid crystal molecules.

[0096] Optional, continue to refer to Figure 3 It can also be seen that the display panel described in the embodiments of this disclosure may further include:

[0097] A barrier 04 is located between the first transparent substrate 01 and the second transparent substrate 02 to separate adjacent pixels 03. A black matrix layer 05 is located between the first transparent substrate 01 and the second transparent substrate 02 to separate the light-emitting unit 032 and the liquid crystal unit 032 included in each pixel 03 within each pixel partition.

[0098] Optional, Figure 4 This is a schematic diagram of another pixel structure provided in an embodiment of this disclosure. For example... Figure 4 As shown, the pixel electrode line Vc described in this embodiment may include: a first pixel electrode line Vc1 and a second pixel electrode line Vc2.

[0099] The pixel voltage provided by the first pixel electrode line Vc1 is equal to the common voltage provided by the common electrode line Vcom coupled to the liquid crystal cell 033. Accordingly, the first pixel electrode line Vc1 can also be identified as Vcom. The pixel voltage provided by the second pixel electrode line Vc2 is not equal to the common voltage.

[0100] Optionally, the pixel voltage provided by the second pixel electrode line Vc2 can be centered on a common voltage and reversed once every two adjacent frames, but the absolute value remains unchanged. That is, the reversal here can refer to the reversal of the voltage direction (e.g., one positive and one negative). In this way, polarization can be avoided by the liquid crystal molecules being deflected under a single voltage difference for a long time.

[0101] Optional, continue to refer to Figure 4 It can be seen that the pixel circuit 031 may include: the first pixel circuit 0311 and the second pixel circuit 0312.

[0102] The first pixel circuit 0311 can be coupled to the gate line, the data line, the first power line, and the light-emitting unit 032, respectively. The first pixel circuit 0311 can be used to transmit a light-emitting driving signal to the light-emitting unit 032 based on the gate driving signal, the data signal, and the first power signal, so as to drive the light-emitting unit 032 to emit light. Figure 3 Only a portion of the structure of the first pixel circuit 0311 is shown.

[0103] Optional, combined Figure 4 As described in the above embodiments, the first pixel circuit 0311 may be coupled to the first pole 0321 (e.g., anode) included in the light-emitting unit 032 and used to transmit a light-emitting driving signal to the first pole 0321.

[0104] Furthermore, in the above embodiments, the first sub-partition A11 is referred to as the light-emitting area or the display area. Accordingly, the light-emitting unit 032 and the first pixel circuit 0311 that drives its light emission in the first sub-partition A11 can be collectively referred to as the display driving unit.

[0105] The second pixel circuit 0312 can be coupled to the gate line, control line Vt, first pixel electrode line Vc1, second pixel electrode line Vc2, second power supply line Vss, and liquid crystal cell 033, respectively. The second pixel circuit 0312 can be used to control the on / off state of the first pixel electrode line Vc1 and the liquid crystal cell 033 based on the gate drive signal, control signal, and second power supply signal, thereby controlling the on / off state of the second pixel electrode line Vc2 and the liquid crystal cell 033. This allows the first pixel electrode line Vc1 to transmit a pixel voltage equal to the common voltage to the liquid crystal cell 033, or the second pixel electrode line Vc2 to transmit a pixel voltage unequal to the common voltage to the liquid crystal cell 033, thereby further controlling the deflection state of the liquid crystal molecules in the liquid crystal cell 033.

[0106] Example, Figure 4 The second pixel circuit 0312 shown is coupled to the liquid crystal cell 033 via its output terminal Vout. And, in conjunction with... Figure 4 As described in the above embodiments, the second pixel circuit 0312 can be coupled to the first transparent electrode 0331 included in the liquid crystal unit 033 through the output terminal Vout, and is used to transmit pixel voltage to the first transparent electrode 0331.

[0107] Furthermore, in the above embodiments, the second sub-partition A12 is referred to as the light-transmitting area. Accordingly, the liquid crystal unit 033 in the second sub-partition A12 and the second pixel circuit 0312 that drives the deflection state of the liquid crystal molecules therein can be collectively referred to as the light-transmitting driving unit.

[0108] Optionally, in this embodiment, the first pixel circuit 0311 may be located in the first sub-partition A11, and the second pixel circuit 0312 may be located in the second sub-partition A12. That is, the first pixel circuit 0311 may be located in the same sub-partition as the coupled light-emitting unit 032; the second pixel circuit 0312 may be located in the same sub-partition as the coupled liquid crystal unit 033. This facilitates layout and coupling of the pixel circuit with the light-emitting unit 032 and the liquid crystal unit 033. Of course, in some other embodiments, combined with... Figure 1The first pixel circuit 0311 and the second pixel circuit 0312 can be located in the same sub-partition, such as both located in the first sub-partition A11. Alternatively, they can both be located in the second sub-partition A12.

[0109] Optional, Figure 5 This is a schematic diagram of another pixel structure provided in an embodiment of this disclosure. For example... Figure 5 As shown, the first pixel circuit 0311 may include a data writing sub-circuit 03111 and a driving sub-circuit 03112.

[0110] The data writing sub-circuit 03111 can be coupled to the gate line, the data line, and the drive node N1, respectively. The data writing sub-circuit 03111 can be used to control the on / off state of the data line Data and the drive node N1 based on the gate drive signal.

[0111] For example, the data writing sub-circuit 03111 can control the data line Data to be connected to the driving node N1 when the gate drive signal potential is at the first potential. At this time, the data signal provided by the data line Data can be transmitted to the driving node N1. Furthermore, the data writing sub-circuit 03111 can control the data line Data to be disconnected from the driving node N1 when the gate drive signal potential is at the second potential.

[0112] Optionally, in this embodiment of the disclosure, the first potential can be an effective potential, and the second potential can be an ineffective potential. Furthermore, the first potential can be a low potential relative to the second potential (for a P-type transistor). Alternatively, the first potential can be a high potential relative to the second potential (for an N-type transistor).

[0113] The driving sub-circuit 03112 can be coupled to the driving node N1, the first power line Vdd, and the light-emitting unit 032, respectively. The driving sub-circuit 03112 can be used to transmit a light-emitting driving signal to the light-emitting unit 032 based on the potential of the driving node N1 and the first power signal.

[0114] Optional, combined Figure 5 As described in the above embodiments, the driving sub-circuit 03112 may be coupled to the first electrode 0321 (e.g., anode) of the light-emitting unit 032 and used to transmit a light-emitting driving signal to the first electrode 0321. The second electrode 0323 (e.g., cathode) of the light-emitting unit 032 may be coupled to the second power line Vss (e.g., grounded) and used to receive the second power signal provided by the second power line Vss.

[0115] For example, the potential of the second power supply signal can be a low potential (e.g., negative voltage). Based on this, when it is necessary to drive the light-emitting unit 032 to emit light, the first power supply terminal Vdd can be controlled to provide a high-potential first power supply signal, i.e., the first power supply signal can be controlled to be a positive voltage, creating a voltage difference between the anode and cathode of the light-emitting unit 032, causing electron-hole recombination, thereby driving the light-emitting layer 0322 to emit light and illuminating the light-emitting unit 032. When it is not necessary to drive the light-emitting unit 032 to emit light, the first power supply terminal Vdd can be controlled to provide a negative-potential first power supply signal, i.e., the first power supply signal can be controlled to become a negative voltage, preventing electron-hole recombination between the anode and cathode of the light-emitting unit 032, thus preventing the light-emitting layer 0322 from emitting light, and consequently preventing the light-emitting unit 032 from being illuminated.

[0116] Optional, continue to refer to Figure 5 It can be seen that the second pixel circuit 0312 may include: control sub-circuit 03121, first output sub-circuit 03122 and second output sub-circuit 03123.

[0117] The control sub-circuit 03121 can be coupled to the gate line Gate, the second power supply line Vss, the control line Vt, and the control node N2, respectively. The control sub-circuit 03121 can be used to control the on / off state of the gate line Gate and the control node N2 based on the gate drive signal, and to control the on / off state of the second power supply line Vss and the control node N2 based on the control signal.

[0118] For example, control sub-circuit 03121 can control the gate line Gate to conduct with control node N2 when the gate drive signal potential is a first potential, at which time the gate drive signal provided by the gate line Gate can be transmitted to control node N2. Conversely, control sub-circuit 03121 can control the gate line Gate to discouple from control node N2 when the gate drive signal potential is a second potential.

[0119] Similarly, when the control signal potential is the first potential, the control sub-circuit 03121 can control the second power line Vss to conduct with the control node N2, at which time the second power signal provided by the second power line Vss can be transmitted to the control node N2. Furthermore, when the control signal potential is the second potential, the control sub-circuit 03121 can control the second power line Vss to disconnect from the control node N2.

[0120] The first output sub-circuit 03122 can be coupled to the control node N2, the first pixel electrode line Vc1, and the liquid crystal unit 033, respectively. The first output sub-circuit 03122 can be used to control the on / off state of the first pixel electrode line Vc1 and the liquid crystal unit 033 based on the potential of the control node N2.

[0121] For example, the first output sub-circuit 03122 can control the first pixel electrode line Vc1 to conduct with the liquid crystal cell 033 (i.e., the output terminal Vout) when the potential of the control node N2 is at the first potential. At this time, the first pixel electrode line Vc1 can transmit a pixel voltage equal to the common voltage to the liquid crystal cell 033 through the output terminal Vout, so that the liquid crystal molecules do not deflect. Furthermore, the first output sub-circuit 03122 can control the first pixel electrode line Vc1 to disconnect from the liquid crystal cell 033 (i.e., the output terminal Vout) when the potential of the control node N2 is at the second potential.

[0122] The second output sub-circuit 03123 can be coupled to the control line Vt, the second pixel electrode line Vc2, and the liquid crystal unit 033, respectively. The second output sub-circuit 03123 can be used to control the on / off state of the second pixel electrode line Vc2 and the liquid crystal unit 033 based on the control signal.

[0123] For example, the second output sub-circuit 03123 can control the second pixel electrode line Vc2 to conduct with the liquid crystal cell 033 (i.e., the output terminal Vout) when the control signal potential is the first potential. At this time, the second pixel electrode line Vc2 can transmit a pixel voltage that is different from the common voltage to the liquid crystal cell 033 through the output terminal Vout, causing the liquid crystal molecules to deflect. Conversely, the second output sub-circuit 03123 can also control the second pixel electrode line Vc2 to disconnect from the liquid crystal cell 033 (i.e., the output terminal Vout) when the control signal potential is the second potential.

[0124] Optional, combined Figure 5 As described in the above embodiments, the first output sub-circuit 03122 and the second output sub-circuit 03123 can be coupled to the first transparent electrode 0331 in the liquid crystal cell 033 and used to transmit a pixel voltage equal to or not equal to the common voltage to the first transparent electrode 0331 through the output terminal Vout.

[0125] Optional, Figure 6 This is a schematic diagram of the structure of a first pixel circuit provided in an embodiment of this disclosure. For example... Figure 6 As shown, the data writing sub-circuit 03111 may include: a first transistor T1. The driving sub-circuit 03112 may include: a second transistor T2 and a first capacitor C1.

[0126] The gate of the first transistor T1 can be coupled to the gate line Gate, the first terminal of the first transistor T1 can be coupled to the data line Data, and the second terminal of the first transistor T1 can be coupled to the driving node N1.

[0127] The gate of the second transistor T2 can be coupled to the driving node N1, the first terminal of the second transistor T2 can be coupled to the first power supply line Vdd, and the second terminal of the second transistor T2 can be coupled to the light-emitting unit 032. Optionally, as described in the above embodiment, the second terminal of the second transistor T2 can be coupled to the anode of the light-emitting unit 032.

[0128] One end of the first capacitor C1 can be coupled to the gate of the second transistor T2, and the other end of the first capacitor C1 can be coupled to the second terminal of the second transistor T2.

[0129] That is, the first pixel circuit 0311 described in this embodiment can be a pixel circuit with a 2T1C structure (i.e., 2 transistors and 1 capacitor). Of course, in some other embodiments, the first pixel circuit 0311 can also be a pixel circuit with other structures (e.g., 7T1C).

[0130] Optional, Figure 7 This is a schematic diagram of the structure of a second pixel circuit provided in an embodiment of this disclosure. Figure 7 As shown, the control sub-circuit 03121 includes a third transistor T3 and a fourth transistor T4. The first output sub-circuit 03122 may include a fifth transistor T5 and a second capacitor C2. The second output sub-circuit 03123 may include a sixth transistor T6 and a third capacitor C3.

[0131] The gate of the third transistor T3 can be coupled to the control line Vt, the first terminal of the third transistor T3 can be coupled to the second power line Vss, and the second terminal of the third transistor T3 can be coupled to the control node N2.

[0132] The gate and first terminal of the fourth transistor T4 can both be coupled to the gate line, and the second terminal of the fourth transistor T4 can be coupled to the control node N2.

[0133] The gate of the fifth transistor T5 can be coupled to the control node N2, the first electrode of the fifth transistor T5 can be coupled to the first pixel electrode line Vc1, and the second electrode of the fifth transistor T5 can be coupled to the liquid crystal cell 033. Optionally, as described in the above embodiment, the second electrode of the fifth transistor T5 can be coupled to the first transparent electrode 0331 of the liquid crystal cell 033 through the output terminal Vout.

[0134] One end of the second capacitor C2 can be coupled to the gate of the fifth transistor T5, and the other end of the second capacitor C2 can be coupled to the second terminal of the fifth transistor T5.

[0135] The gate of the sixth transistor T6 can be coupled to the control line Vt, the first electrode of the sixth transistor T6 can be coupled to the second pixel electrode line Vc2, and the second electrode of the sixth transistor T6 can be coupled to the liquid crystal cell 033. Optionally, as described in the above embodiment, the second electrode of the sixth transistor T6 can be coupled to the first transparent electrode 0331 of the liquid crystal cell 033 through the output terminal Vout.

[0136] One end of the third capacitor C3 can be coupled to the gate of the sixth transistor T6, and the other end of the third capacitor C3 can be coupled to the second terminal of the sixth transistor T6.

[0137] That is, the second pixel circuit 0312 described in this embodiment can be a pixel circuit with a 4T2C structure. Of course, in some other embodiments, the first pixel circuit 0311 can also be a pixel circuit with other structures (such as 3T2C).

[0138] Optional, such as Figure 6 and Figure 7 As shown, the transistors included in the first pixel circuit 0311 and the second pixel circuit 0312 can both be N-type transistors. Correspondingly, as described in the above embodiments, the first potential can be a high potential; the second potential can be a low potential. Of course, in some other embodiments, the transistors included in the first pixel circuit 0311 and the second pixel circuit 0312 can both be P-type transistors; or, some can be N-type transistors and some can be P-type transistors.

[0139] Optional, in Figure 6 and Figure 7 Based on the structure shown, Figure 8 A circuit structure diagram including a first pixel circuit 0311 and a second pixel circuit 0312 is shown.

[0140] Optionally, in this embodiment, the size of the third transistor T3 can be larger than the size of the fourth transistor T4. For example, the size ratio of the third transistor T3 to the fourth transistor T4 can be 100:1. Correspondingly, the conduction current of the third transistor T3 can be larger, and the on-resistance can be smaller; while the conduction current of the fourth transistor T4 can be smaller, and the on-resistance can be larger. For example, based on a size ratio of 100:1, the on-resistance of the fourth transistor T4 can be approximately 80 times that of the third transistor T3.

[0141] Thus, when the gate line provides the gate drive signal at the second potential and the control line Vt provides the control signal at the first potential, the third transistor T3 and the fourth transistor T4 can reliably perform voltage division, ensuring that the potential of the control node N2 is basically consistent with the potential of the second power signal provided by the second power line Vss. This ensures that the first output sub-circuit 03122 can reliably disconnect the first pixel electrode line Vc1, whose provided pixel voltage is equal to the common voltage, from the output terminal Vout based on the potential of the control node N2. At the same time, the second output sub-circuit 03123 can be controlled based on the potential of the control signal to reliably connect the second pixel electrode line Vc2, whose provided pixel voltage is not equal to the common voltage, to the output terminal Vout. Consequently, the second pixel electrode line Vc2 reliably transmits a pixel voltage that is different from the common voltage to the liquid crystal cell 033 through the output terminal Vout.

[0142] Optionally, in this embodiment, the control line Vt coupled to the second pixel circuit 0312 and the first power line Vdd coupled to the first pixel circuit 0311 can be shared. This simplifies wiring and saves costs. Of course, in some other embodiments, the control line Vt can also be shared with other signal lines coupled to the first pixel circuit 0311. For example, assuming the first pixel circuit 0311 is a 7T1C structure pixel circuit coupled to a reset line, the control line Vt can also be shared with the reset line.

[0143] As described in the above embodiments, this disclosure provides a transparent double-sided display solution driven by an OLED. This solution divides a pixel into a display area and a light-transmitting area. The display area uses an OLED to display the image; the light-transmitting area is either light-transmitting or opaque depending on the current frame. For example, when the pixel in the display area emits light from both sides, the liquid crystal molecules in the light-transmitting area can deflect to a light-blocking state, making the light-transmitting area opaque. This prevents light from entering and causing light mixing during display, thereby improving display contrast and color gamut, ensuring better display effects. When the pixel in the display area does not need to emit light from both sides, the liquid crystal molecules in the light-transmitting area can remain undeflected, allowing reliable light transmission in the light-transmitting area, achieving a transparent effect. The double-sided transparent display panel described in this disclosure can be applied to human-shaped standee display scenarios such as airports and train stations, providing a better display effect for the main subject.

[0144] In summary, this disclosure provides a display panel. The display panel includes two transparent substrates disposed opposite each other, and the transparent substrates can be divided into multiple pixel partitions, each pixel partition further divided into two adjacent sub-partitions. Each pixel in a pixel partition includes a pixel circuit, and light-emitting units and liquid crystal units located in the two sub-partitions respectively. The pixel circuit can control the light-emitting state of the light-emitting unit and the deflection state of the liquid crystal molecules in the liquid crystal unit based on multiple coupled signal lines. Thus, by flexibly controlling the signals provided by the signal lines, when the light-emitting unit emits light and its corresponding sub-partition is displayed, the liquid crystal molecules do not deflect, and the corresponding sub-partition is opaque; conversely, when the light-emitting unit does not emit light and its corresponding sub-partition is not displayed, the liquid crystal molecules deflect, and the corresponding sub-partition is transparent. That is, display and light transmission are separated, avoiding light mixing and ensuring a high display contrast and good display effect.

[0145] Figure 9 This is a flowchart illustrating a display control method for a display panel according to an embodiment of this disclosure, which can be applied to the display panel described in the above embodiments. Figure 9 As shown, the method includes:

[0146] Step 901: Determine whether the display panel needs to display an image.

[0147] Step 902: If a display is required, a gate drive signal of the first potential is provided to the gate line, a control signal of the first potential is provided to the control line, a first power signal of the first potential is provided to the first power line, and a second power signal of the second potential is provided to the second power line. The pixel circuit drives the light-emitting unit to emit light based on the gate drive signal, the data signal provided by the data line, and the first power signal, so that the first sub-region displays the image. Based on the gate drive signal, the control signal, and the second power signal, the pixel electrode line is controlled to transmit a pixel voltage to the liquid crystal cell that is different from the common voltage received by the liquid crystal cell, so as to control the liquid crystal molecules in the liquid crystal cell to deflect, so that the second sub-region is in an opaque state.

[0148] Step 903: If no image is required, a gate drive signal of the first potential is provided to the gate line, a control signal of the second potential is provided to the control line, a first power signal of the second potential is provided to the first power line, and a second power signal of the second potential is provided to the second power line. Based on the gate drive signal, the data signal provided by the data line, and the first power signal, the pixel circuit stops driving the light-emitting unit to emit light, so that the first sub-region does not display an image. Based on the gate drive signal, the control signal, and the second power signal, the pixel electrode line is controlled to transmit a pixel voltage equal to the common voltage received by the liquid crystal cell to the liquid crystal cell, so as to control the liquid crystal molecules in the liquid crystal cell to stop deflection, so that the second sub-region is in an opaque state.

[0149] Optional, with Figure 8 Taking the structure shown, where the first potential is high, the second potential is low, and the second power supply signal Vss is continuously at a low potential as an example, the principle of the display control method described in this embodiment is introduced as follows:

[0150] First, when it is determined that the current frame needs to display an image:

[0151] A high-potential gate drive signal can be provided to the gate line Gate, and a high-potential first power supply signal can be provided to the first power supply line Vdd. Since the control line Vt is shared with the first power supply line Vdd, it can be known that the potential of the control signal provided by the control line Vt is also high at this time.

[0152] Accordingly, in the first pixel circuit 0311, the first transistor T1 can be turned on. Then, the data signal provided by the data line Data can be transmitted to the driving node N1 (i.e., the gate of the second transistor T2) via the turned-on first transistor T1, and the potential of the data signal is high, causing the second transistor T2 to turn on and charge the first capacitor C1. Furthermore, because the second transistor T2 is turned on, a path can be formed between the first power line Vdd and the cathode ground end of the light-emitting unit 032. Since the potential of the first power signal provided by the first power line Vdd is high at this time, while the potential of the signal provided by the ground end is low (e.g., 0), a voltage difference can exist between the anode and cathode of the light-emitting unit 032, causing electron-hole recombination, thereby causing the light-emitting unit 032 to emit light. That is, the first sub-division A11 displays the image.

[0153] In the second pixel circuit 0312, the third transistor T3 and the sixth transistor T6 can be turned on, while the fourth transistor T4 can be turned off. Furthermore, the second power line Vss can transmit a low-potential second power signal to the control node N2 (i.e., the gate of the fifth transistor T5) via the turned-on third transistor T3, reliably turning off the fifth transistor T5. Simultaneously, the pixel voltage provided by the second pixel electrode line Vc2 can be transmitted via the turned-on sixth transistor T6 to the liquid crystal cell 033 coupled to the output terminal Vout, specifically to the first transparent electrode 0331 of the liquid crystal cell 033. Because the pixel voltage provided by the second pixel electrode line Vc2 is unequal to the common voltage received by the second transparent electrode 0333 of the liquid crystal cell 033, a voltage difference exists between the first transparent electrode 0331 and the second transparent electrode 0333, causing the liquid crystal molecules in the liquid crystal cell 033 to deflect, achieving light blocking. That is, the second sub-region A12 is opaque.

[0154] Secondly, when it is determined that the current frame does not need to display any content:

[0155] A high-potential gate drive signal can be provided to the gate line, and a low-potential first power supply signal can be provided to the first power supply line Vdd. Since the control line Vt is shared with the first power supply line Vdd, it can be known that the potential of the control signal provided by the control line Vt is also low at this time.

[0156] Accordingly, in the first pixel circuit 0311, the first transistor T1 can be turned on. Then, the data signal provided by the data line Data can be transmitted to the driving node N1 (i.e., the gate of the second transistor T2) via the turned-on first transistor T1, and the potential of the data signal is low, causing the second transistor T2 to turn off and charge the first capacitor C1. Furthermore, since the potential of the first power signal provided by the first power line Vdd is low at this time, and the potential of the signal provided by the ground terminal is also low, there is no voltage difference between the anode and cathode of the light-emitting unit 032, thus causing the light-emitting unit 032 to not emit light. That is, the first sub-partition A11 does not display an image.

[0157] In the second pixel circuit 0312, the third transistor T3 and the sixth transistor T6 can be turned off, while the fourth transistor T4 can be turned on. Furthermore, the gate drive signal provided by the gate line can be transmitted to the control node N2 (i.e., the gate of the fifth transistor T5) via the turned-on fourth transistor T4, ensuring the reliable turn-on of the fifth transistor T5. With the fifth transistor T5 turned on, the pixel voltage provided by the first pixel electrode line Vc1 can be transmitted to the liquid crystal cell 033 coupled to the output terminal Vout via the turned-on fifth transistor T5, specifically to the first transparent electrode 0331 of the liquid crystal cell 033. Because the pixel voltage provided by the first pixel electrode line Vc1 is equal to the common voltage received by the second transparent electrode 0333 of the liquid crystal cell 033, there is no voltage difference between the first transparent electrode 0331 and the second transparent electrode 0333, thus preventing the liquid crystal molecules in the liquid crystal cell 033 from deflecting and achieving light transmission. That is, the second sub-region A12 is light-transmitting.

[0158] Optionally, different data signals can be set by peripheral circuitry (e.g., a drive circuit) to determine when the potential of the first power supply signal changes. This drive circuit can be used to execute the method described in the above embodiments.

[0159] In summary, the embodiments of this disclosure provide a display control method for a display panel. This method allows for flexible control of the signals provided by the signal lines, enabling the light-emitting unit to emit light and display in its corresponding sub-zone; conversely, when the light-emitting unit does not emit light and its corresponding sub-zone does not display, the liquid crystal molecules deflect and the sub-zone transmits light. That is, display and light transmission are separated, avoiding light mixing and ensuring a high contrast ratio and good display effect for the display panel.

[0160] Figure 10 This is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure. Figure 10 As shown, the display device includes a power supply component 100 and a display panel 000 as described in the above embodiments.

[0161] The power supply component 100 is coupled to the display panel 000 and is used to supply power to the display panel 000.

[0162] Optionally, the display device described in the embodiments of this disclosure can be any product or component with display function, such as an OLED & LCD display device, an AMOLED & LCD display device, a mobile phone, a tablet computer, a flexible display device, a television, and a monitor. Here, LCD refers to Liquid Crystal Display, and AMOLED refers to Active-Matrix Organic Light-Emitting Diode.

[0163] It should be noted that the terminology used in the embodiments of this disclosure is for the purpose of explaining the embodiments of this disclosure and is not intended to limit this disclosure. Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains.

[0164] For example, in embodiments of this disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0165] Similarly, words like "one" or "one" do not indicate a quantity limit, but rather that there is at least one.

[0166] The word “includes” or similar terms means that the elements or objects preceding “includes” or “include” cover the elements or objects listed after “includes” or “include” or their equivalents, and do not exclude other elements or objects.

[0167] "Up," "down," "left," or "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0168] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A display panel, characterized by, The display panel comprises: Oppositely arranged first and second transparent substrates, and the first transparent substrate has a plurality of pixel partitions, each of which has adjacent first and second sub-partitions; A plurality of pixels in the plurality of pixel partitions, and the pixels in each pixel partition comprise a pixel circuit, a light-emitting unit in the first sub-partition, and a liquid crystal unit in the second sub-partition; The pixel circuit is coupled with a gate line, a control line, a data line, a first power supply line, a second power supply line, a pixel electrode line, the light-emitting unit, and the liquid crystal unit, respectively, and is configured to control a light-emitting state of the light-emitting unit based on a gate drive signal provided by the gate line, a data signal provided by the data line, and a first power supply signal provided by the first power supply line, and control the pixel electrode line to transmit a pixel voltage to the liquid crystal unit based on the gate drive signal, a control signal provided by the control line, and a second power supply signal provided by the second power supply line, so as to control a deflection state of a liquid crystal molecule in the liquid crystal unit; The pixel electrode line comprises a first pixel electrode line and a second pixel electrode line, a pixel voltage provided by the first pixel electrode line is equal to a common voltage received by the liquid crystal unit, and a pixel voltage provided by the second pixel electrode line is not equal to the common voltage; the pixel circuit comprises: A first pixel circuit coupled with the gate line, the data line, the first power supply line, and the light-emitting unit, respectively, and configured to transmit a light-emitting drive signal to the light-emitting unit based on the gate drive signal, the data signal, and the first power supply signal, so as to drive the light-emitting unit to emit light; A second pixel circuit coupled with the gate line, the control line, the first pixel electrode line, the second pixel electrode line, the second power supply line, and the liquid crystal unit, respectively, and configured to control on-off states of the first pixel electrode line and the liquid crystal unit based on the gate drive signal, the control signal, and the second power supply signal, and control on-off states of the second pixel electrode line and the liquid crystal unit.

2. The display panel of claim 1, wherein, The light-emitting unit comprises a first electrode, a light-emitting layer, and a second electrode which are sequentially stacked; The pixel circuit is coupled with the first electrode of the light-emitting unit, and is configured to transmit a light-emitting drive signal to the first electrode of the light-emitting unit based on the gate drive signal, the data signal, and the first power supply signal; The second electrode of the light-emitting unit is coupled with the second power supply line, and is configured to receive a second power supply signal provided by the second power supply line; The light-emitting layer of the light-emitting unit is configured to emit light based on the light-emitting drive signal received by the first electrode and the second power supply signal received by the second electrode.

3. The display panel of claim 1, wherein, The liquid crystal unit comprises a first transparent electrode, a liquid crystal layer, and a second transparent electrode which are sequentially stacked, and the liquid crystal layer comprises the liquid crystal molecules; The pixel circuit is coupled with the first transparent electrode, and is configured to control the pixel electrode line to transmit a pixel voltage to the first transparent electrode based on the gate drive signal, the control signal, and the second power supply signal; The second transparent electrode is coupled with a common electrode line and is configured to receive a common voltage transmitted by the common electrode line; The liquid crystal molecules in the liquid crystal layer are configured to stop deflection when the pixel voltage received by the first transparent electrode is equal to the common voltage received by the second transparent electrode, and are configured to deflect when the pixel voltage received by the first transparent electrode is not equal to the common voltage received by the second transparent electrode.

4. The display panel of claim 3, wherein, The liquid crystal cell further comprises: a first alignment layer located between the first transparent electrode and the liquid crystal layer; a second alignment layer located between the second transparent electrode and the liquid crystal layer; and The first alignment layer and the second alignment layer are configured to control the arrangement of the liquid crystal molecules.

5. The display panel of any of claims 1 to 4, wherein, The first pixel circuit comprises: a data writing sub-circuit coupled with the gate line, the data line and a driving node respectively, and configured to control the connection and disconnection of the data line and the driving node based on the gate driving signal; a driving sub-circuit coupled with the driving node, the first power supply line and the light emitting unit respectively, and configured to transmit a light emitting driving signal to the light emitting unit based on the potential of the driving node and the first power supply signal.

6. The display panel of claim 5, wherein, The data writing sub-circuit comprises a first transistor, and the driving sub-circuit comprises a second transistor and a first capacitor; a gate of the first transistor is coupled with the gate line, a first pole of the first transistor is coupled with the data line, and a second pole of the first transistor is coupled with the driving node; a gate of the second transistor is coupled with the driving node, a first pole of the second transistor is coupled with the first power supply line, and a second pole of the second transistor is coupled with the light emitting unit; one end of the first capacitor is coupled with the gate of the second transistor, and the other end of the first capacitor is coupled with the second pole of the second transistor.

7. The display panel of any of claims 1 to 4, wherein, The second pixel circuit comprises: a control sub-circuit coupled with the gate line, the second power supply line, the control line and a control node respectively, and configured to control the connection and disconnection of the gate line and the control node based on the gate driving signal, and control the connection and disconnection of the second power supply line and the control node based on the control signal; a first output sub-circuit coupled with the control node, the first pixel electrode line and the liquid crystal unit respectively, and configured to control the connection and disconnection of the first pixel electrode line and the liquid crystal unit based on the potential of the control node; a second output sub-circuit coupled with the control line, the second pixel electrode line and the liquid crystal unit respectively, and configured to control the connection and disconnection of the second pixel electrode line and the liquid crystal unit based on the control signal.

8. The display panel of claim 7, wherein, The control sub-circuit comprises a third transistor and a fourth transistor, the first output sub-circuit comprises a fifth transistor and a second capacitor, and the second output sub-circuit comprises a sixth transistor and a third capacitor; a gate of the third transistor is coupled with the control line, a first pole of the third transistor is coupled with the second power supply line, and a second pole of the third transistor is coupled with the control node; The gate and the first electrode of the fourth transistor are coupled with the gate line, and the second electrode of the fourth transistor is coupled with the control node; The gate of the fifth transistor is coupled with the control node, the first electrode of the fifth transistor is coupled with the first pixel electrode line, and the second electrode of the fifth transistor is coupled with the liquid crystal cell; One end of the second capacitor is coupled with the gate of the fifth transistor, and the other end of the second capacitor is coupled with the second electrode of the fifth transistor; The gate of the sixth transistor is coupled with the control line, the first electrode of the sixth transistor is coupled with the second pixel electrode line, and the second electrode of the sixth transistor is coupled with the liquid crystal cell; One end of the third capacitor is coupled with the gate of the sixth transistor, and the other end of the third capacitor is coupled with the second electrode of the sixth transistor.

9. The display panel of claim 8, wherein, The size of the third transistor is greater than the size of the fourth transistor.

10. The display panel of any one of claims 1 to 4, wherein, The control line is shared with the first power supply line.

11. The display panel according to any one of claims 1 to 4, characterized in that, The first pixel circuit is located in the first sub-region, and the second pixel circuit is located in the second sub-region.

12. The display panel of any one of claims 1 to 4, wherein, The display panel further comprises: A barrier wall located between the first transparent substrate and the second transparent substrate for spacing adjacent pixels; And a black matrix layer located between the first transparent substrate and the second transparent substrate for spacing the light emitting cell and the liquid crystal cell included in each pixel in each pixel sub-region.

13. A display control method of a display panel, characterized by, The method is applied to the display panel as claimed in any one of claims 1 to 12; the method comprises: Determining whether the display panel needs to display a picture; If the picture needs to be displayed, a gate driving signal of a first potential is provided to the gate line, a control signal of the first potential is provided to the control line, a first power supply signal of the first potential is provided to the first power supply line, a second power supply signal of a second potential is provided to the second power supply line, the pixel circuit drives the light emitting cell to emit light based on the gate driving signal, a data signal provided by the data line, and the first power supply signal, so that the first sub-region displays the picture, and the pixel electrode line transmits a pixel voltage different from a common voltage received by the liquid crystal cell to the liquid crystal cell based on the gate driving signal, the control signal, and the second power supply signal, so that the liquid crystal molecules in the liquid crystal cell are deflected, and the second sub-region is in a non-transparent state; If the picture does not need to be displayed, a gate driving signal of a first potential is provided to the gate line, a control signal of a second potential is provided to the control line, a first power supply signal of the second potential is provided to the first power supply line, and a second power supply signal of the second potential is provided to the second power supply line, the pixel circuit stops driving the light emitting cell to emit light based on the gate driving signal, a data signal provided by the data line, and the first power supply signal, so that the first sub-region does not display the picture, and the pixel electrode line transmits a pixel voltage equal to a common voltage received by the liquid crystal cell to the liquid crystal cell based on the gate driving signal, the control signal, and the second power supply signal, so that the liquid crystal molecules in the liquid crystal cell stop deflection, and the second sub-region is in a non-transparent state.

14. A display device comprising: The display device comprises a power supply component and the display panel as claimed in any one of claims 1 to 12. The power supply component is coupled to the display panel and configured to supply power to the display panel.

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