Display panel, display module and display device

Abstract

An embodiment of the present application discloses a display panel. The display panel includes a plurality of pixel units arranged in a matrix. Each of the pixel units includes a first display unit and a second display unit. The first display unit and the second display unit are connected in parallel between a first driving voltage end and a second driving voltage end. The first driving voltage end is configured to receive a first driving voltage, and the second driving voltage end is configured to receive a second driving voltage. During displaying two consecutive frames of images, when displaying a first frame of the two frames of images, the first driving voltage is greater than the second driving voltage, and the first driving voltage and the second driving voltage work together to drive the first display unit to display an image. When displaying a second frame of the two frames of images, the second driving voltage is greater than the first driving voltage, and the first driving voltage and the second driving voltage work together to drive the second display unit to display an image. By alternately driving the two display units to display an image, the life of the pixel unit can be effectively improved. The present application further discloses a display module and a display device including the above display panel.

Description

[Technical field]

[0001] REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202211175495.2, filed on September 26, 2022, entitled "Display Panel, Display Module and Display Device," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of display technology, and in particular to a display panel, a display module and a display device. [Background technology]

[0003] Organic Light-Emitting Diode (OLED) display devices have many advantages, such as self-luminescence, low driving voltage, high luminous efficiency, short response time, high definition and high contrast, nearly 180° viewing angle, wide operating temperature range, flexible display, and large-area full-color display, and are considered to be the most promising display device in the industry.

[0004] Currently, OLEDs in display panels generally use direct current (DC) driving. When DC driving is used, the thin film transistor (TFT) in the pixel unit operates continuously. As a result, the TFT generates heat continuously and the life of the TFT is shortened. In addition, the pixel unit is equipped with only one light emitting diode (LED), and the life of the LED is relatively short due to the continuous operation of the LED, which increases the usage cost. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present application provides a display panel, a display module and a display device, in which two light emitting diodes are displayed alternately in each pixel unit.

[0006] The display panel includes a plurality of pixel units arranged in a matrix, and the plurality of pixel units are configured to receive a data signal for displaying an image. Each of the pixel units includes a first display unit and a second display unit. The first display unit and the second display unit are connected in parallel between a first driving voltage end and a second driving voltage end. The first driving voltage end is configured to receive a first driving voltage, and the second driving voltage end is configured to receive a second driving voltage. During displaying two consecutive frames of images, when displaying a first frame of the two frames of images, the first driving voltage is greater than the second driving voltage, and the first driving voltage and the second driving voltage work together to drive the first display unit to display an image. When displaying a second frame of the two frames of images, the second driving voltage is greater than the first driving voltage, and the first driving voltage and the second driving voltage work together to drive the second display unit to display an image. The first display unit and the second display unit are configured to sequentially and alternately display a plurality of frames of images by cooperative driving with the first driving voltage and the second driving voltage.

[0007] Optionally, the display panel further includes a plurality of scanning lines extending along a first direction and a plurality of data lines extending along a second direction. The first direction is perpendicular to the second direction. Pixel units are provided at intersections of the plurality of scanning lines and the plurality of data lines. The pixel units are configured to receive scanning signals via the scanning lines and receive data signals for image display under the control of the scanning signals. Each of the pixel units further includes an adjustment unit. The adjustment unit, the first display unit, and the second display unit are configured to adjust a first driving voltage. End and the second driving voltage End and the adjustment unit adjusts the first driving voltage between the first frame image and the second frame image during display of two consecutive frames of images, when the display of the first frame image ends and before the display of the second frame image starts. End and the second driving voltage End and a first driving voltage End and the second driving voltage EndThe charge balancer is configured to balance the charge between the

[0008] Optionally, the first display unit includes a first signal receiving module, a first voltage stabilizing module, and a first light emitting module. The first signal receiving module is connected to the data lines and the scanning lines, and configured to receive scanning signals through the scanning lines, receive data signals through the data lines, and transmit the data signals to the first voltage stabilizing module. The first voltage stabilizing module is connected to the first signal receiving module and the first light emitting module, and configured to receive and store the data signals from the first signal receiving module, and apply a stabilized voltage to the first light emitting module during the light emission of the first light emitting module. The first light emitting module is configured to emit light when the first driving voltage and the second driving voltage are applied to the first light emitting module.

[0009] Optionally, the first display unit further includes a first conduction control module and a second conduction control module. The first conduction control module is connected to the first voltage stabilizing module and the first driving voltage end, and is configured to receive a first control signal and control the first driving voltage end to be electrically connected to the first voltage stabilizing module according to the first control signal, and the first conduction control module is electrically connected to the first light-emitting module through the first voltage stabilizing module. The second conduction control module is connected to the first light-emitting module and the second driving voltage end, and is configured to receive a first control signal and control the second driving voltage end to be electrically connected to the first light-emitting module according to the first control signal. When the first driving voltage is greater than the second driving voltage, the first driving voltage end, the first conduction control module, the first voltage stabilizing module, the first light-emitting module, the second conduction control module and the second driving voltage end cooperate to form an output loop, and drive the first light-emitting module so that the first light-emitting module emits light.

[0010] Optionally, the first display unit further includes a first connection module, which is connected between the first light emitting module and the second display unit, and is configured to receive a first conductive signal and transmit, under the control of the first conductive signal, charges remaining in the first light emitting module after the first light emitting module finishes emitting light to the second display unit for use in displaying an image by the second display unit.

[0011] Optionally, the second display unit includes a second signal receiving module, a second voltage stabilizing module, and a second light emitting module. The second signal receiving module is connected to the data line and the scanning line, and configured to receive a scanning signal through the scanning line, receive a data signal through the data line, and transmit the data signal to the second voltage stabilizing module. The second voltage stabilizing module is connected to the second signal receiving module and the second light emitting module, and configured to receive and store the data signal from the second signal receiving module, and apply a stabilized voltage to the second light emitting module during the light emission of the second light emitting module. The second light emitting module is configured to emit light when connected to the first driving voltage end and the second driving voltage end.

[0012] Optionally, the second display unit further includes a third conduction control module and a fourth conduction control module. The third conduction control module is connected to the second voltage stabilizing module and the second driving voltage end, and is configured to receive a second control signal and control the second driving voltage end to be electrically connected to the second voltage stabilizing module according to the second control signal, and the third conduction control module is electrically connected to the second light-emitting module through the second voltage stabilizing module. The fourth conduction control module is connected to the second light-emitting module and the first driving voltage end, and is configured to receive a second control signal and control the first driving voltage end to be electrically connected to the second light-emitting module according to the second control signal. When the second driving voltage is greater than the first driving voltage, the second driving voltage end, the third conduction control module, the second voltage stabilizing module, the second light-emitting module, the fourth conduction control module and the first driving voltage end cooperate to form an output loop, and drive the second light-emitting module so that the second light-emitting module emits light.

[0013] Optionally, the second display unit further includes a second connection module, which is connected between the second light emitting module and the first display unit, and is configured to receive a second conductive signal and transmit, under the control of the second conductive signal, charges remaining in the second light emitting module after the second light emitting module finishes emitting light to the first display unit for use in displaying an image by the first display unit.

[0014] The present application further discloses a display module, comprising: a data driving circuit, a scan driving circuit, a display control circuit, a light emission controller, and the above display panel. The data driving circuit is configured to receive a source output control signal from the display control circuit, and output a data signal according to the source output control signal. The scan driving circuit is configured to receive a gate output control signal from the display control circuit, and output a scan signal according to the gate output control signal. The pixel units in the display panel are configured to display an image according to the scan signal and the data signal under the control of the light emission controller.

[0015] The present application further discloses a display device, which includes a support frame, a power supply module, and the display module, the power supply module applies a power supply voltage to the display panel so that the display panel displays an image, and the display module and the power supply module are fixed to the support frame.

[0016] Compared with the existing technology, by setting a first light emitting diode and a second light emitting diode and driving the first light emitting diode and the second light emitting diode with an alternating current (AC) voltage respectively, the two light emitting diodes emit light alternately during displaying a plurality of consecutive frames of images, thereby effectively shortening the light emitting time of each light emitting diode and improving the light emitting life of the pixel unit. In addition, when the two light emitting diodes emit light alternately, charge sharing can be performed between the two light emitting diodes, and the charge remaining in the light emitting diode that has finished emitting light can be transferred to another light emitting diode and used for emitting light of the other light emitting diode, thereby greatly reducing the power consumption during the light emitting of the pixel unit. [Brief description of the drawings]

[0017] In order to more clearly describe the technical solutions of the embodiments of the present application, the following briefly introduces the drawings necessary for the embodiments. Obviously, the drawings described are some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1] FIG. 1 is a schematic diagram showing the structure of a display device according to an embodiment of the present application. [Diagram 2] FIG. 2 is a schematic diagram showing a planar layout structure of the display module in FIG. [Diagram 3] FIG. 3 is a block diagram showing a pixel unit in FIG. [Figure 4] FIG. 4 is an equivalent circuit diagram of the pixel unit in FIG. [Diagram 5] FIG. 5 is a timing diagram of signals in the pixel unit in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] In order to facilitate understanding of the present application, the present application will now be described more fully with reference to the associated drawings. Preferred embodiments of the present application are illustrated in the drawings. However, the present application may be embodied in many different forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present application.

[0019] The following description of each embodiment will be made with reference to the accompanying drawings to illustrate specific embodiments in which the present application may be implemented. In this specification, the numbers attached to parts such as "first" and "second" are used only to distinguish the objects being described and have no sequential or technical meaning. The terms "connect" and "couple" in this application include direct connection (coupled) and indirect connection (coupled) unless otherwise specified. Terms indicating directions referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely with reference to the directions in the accompanying drawings. Therefore, the terms indicating directions used are intended to make the description and understanding of this application easier and clearer, and do not expressly or imply that a device or element necessarily has a specific direction, is constructed and operated in a specific direction, and therefore should not be understood to limit the present application.

[0020] In the description of this application, unless otherwise specified and limited, the terms "attach", "couple", "connect" and the like should be understood in a broader sense. For example, they may be fixedly connected, detachably connected, or integral, may be mechanically connected, may be directly connected, may be indirectly connected via a medium, or may be internally communicated between two elements. Those skilled in the art may understand the specific meaning of the above terms in this application according to specific circumstances. In addition, the terms "first", "second", and the like in the specification, claims and drawings of this application are used to distinguish different objects, not to describe a specific sequence.

[0021] Additionally, the terms "including," "may include," "comprise," or "can comprise" as used herein refer to the presence of the corresponding features, operations, elements, etc. disclosed, and do not limit the presence of one or more other additional features, operations, elements, etc. Furthermore, the terms "including" or "comprise" refer to the presence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed herein, and are intended to cover, but not exclude, the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof. Furthermore, when describing an embodiment of the present application, the term "may" is used to refer to "one or more embodiments of the present application." Additionally, the term "exemplary" is intended to refer to an example.

[0022] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains, unless otherwise defined. The terms used herein are for the purpose of describing specific embodiments only and are not intended to be limiting of this application.

[0023] Referring to FIG. 1, FIG. One 1 is a schematic diagram showing a structure of a display device 100 according to an embodiment. The display device 100 includes a display module 10, a power supply module 20, and a support frame 30. The display module 10 and the power supply module 20 are fixed to the support frame 30. The power supply module 20 is provided on the rear side of the display module 10, i.e., on the non-display side of the display module 10. The power supply module 20 is configured to apply a power supply voltage to the display module 10 so that the display module 10 displays an image. The support frame 30 fixes and protects the display module 10 and the power supply module 20.

[0024] 2, FIG. 2 is a schematic diagram showing a planar layout structure of the display module 10 in FIG.

[0025] 2, the display module 10 includes a data driving circuit 11, a scan driving circuit 12, a display panel 13, a display control circuit 14, and a light emission controller 16. The data driving circuit 11, the scan driving circuit 12, the display control circuit 14, and the light emission controller 16 are provided in a non-display area of ​​the display panel 13.

[0026] A plurality of data lines (Source lines) S1 to Sm and a plurality of scanning lines (Gate lines) G1 to Gn are arranged in a grid pattern in a display area 13a of the display panel 13. The plurality of scanning lines G1 to Gn extend along a first direction F1, and the plurality of data lines S1 to Sm extend along a second direction F2. The first direction F1 is perpendicular to the second direction F2.

[0027] A pixel unit 15 is provided at each of a plurality of intersections between the plurality of scanning lines G1 to Gn and the plurality of data lines S1 to Sm. In this embodiment, the pixel units 15 can be represented as P11 to P1m, P21 to P2m, ..., Pn1 to Pnm, respectively.

[0028] The scanning lines G1 to Gn are connected to a scan driving circuit 12 and configured to receive a scanning signal from the scan driving circuit 12. The data lines S1 to Sm are connected to a data driving circuit 11 and configured to receive from the data driving circuit 11 a data signal Data that is stored and transmitted in the form of grayscale values.

[0029] The pixel unit 15 receives data voltages in the form of gray scale values ​​in the data signals Data provided by the data lines S1 to Sm during a preset time period under the control of the scan lines G1 to Gn, and displays an image.

[0030] The display control circuit 14 receives an image signal representing image information from an external signal source. DvThe display control circuit 14 receives a synchronization clock signal CLK, a horizontal synchronization signal Hsyn, and a vertical synchronization signal Vsyn, outputs a gate output control signal Cg to the scan drive circuit 12, and outputs a source output control signal Cs and a data signal Data representing image information to the data drive circuit 11. In this embodiment, the display control circuit 14 acquires the data signal Data after performing data adjustment on the original data signal, and transmits the data signal Data to the data drive circuit 11.

[0031] The scan driving circuit 12 receives a gate output control signal Cg output by the display control circuit 14, and outputs a scanning signal to each of the scanning lines G1 to Gn. The data driving circuit 11 receives a source output control signal Cs output by the display control circuit 14, and outputs a data signal Data to each of the data lines S1 to Sm, and the data signal Data is used by the driving element of each pixel unit 15 in the display area 13a to display an image. The data signal Data provided to the display panel 13 is an analog grayscale voltage. The scan driving circuit 12 outputs a scanning signal to control the pixel units 15 to receive the data signal Data output by the data driving circuit 11. The light emission controller 16 applies a light emission control signal to the multiple pixel units 15, and controls the pixel units 15 to emit light. Thereby, the pixel units 15 are controlled to display an image.

[0032] Please refer to FIG. 3, which is a block diagram showing the pixel unit in FIG.

[0033] 3, the pixel unit 15 includes a first display unit 151, a second display unit 152, and an adjustment unit 153. The first display unit 151, the second display unit 152, and the adjustment unit 153 are a first driving voltage end N1 and the second drive voltage end N2 The first drive voltage end is connected in parallel between the first drive voltage end and the second drive voltage end. N1 is configured to receive a first drive voltage V1 and a second drive voltage end N2 is configured to receive a second drive voltage V2 (See Figure 4).

[0034] The first driving voltage V1 and the second driving voltage V2 are AC voltages. value v1 and the second voltage value v1 and v2 alternately, that is, the first driving voltage V1 and the second driving voltage V2 alternate according to the same period, the same voltage, and the opposite phase, the period being the duration of one frame image, and the first voltage value v1 is the second voltage value Greater than v2.

[0035] During display of two consecutive frames of images, when displaying the first frame image of the two frames of images, the first driving voltage V1 is greater than the second driving voltage V2, and a voltage difference from the first driving voltage V1 to the second driving voltage V2 is formed between the first driving voltage V1 and the second driving voltage V2, and the first driving voltage V1 and the second driving voltage V2 cooperate to drive the first display unit 151 to display images.

[0036] When displaying the second frame image in the two-frame image, the second driving voltage V2 is greater than the first driving voltage V1, and a voltage difference from the second driving voltage V2 to the first driving voltage V1 is formed between the first driving voltage V1 and the second driving voltage V2, and the first driving voltage V1 and the second driving voltage V2 cooperate to drive the second display unit 152 to display an image.

[0037] The first display unit 151 and the second display unit 152 are driven by the first driving voltage V1 and the second driving voltage V2 in cooperation to display images alternately in sequence. value v1 and the voltage value of the second driving voltage V2 is Second Voltage Value When the voltage value of the second driving voltage V2 is equal to or greater than the first voltage V1, the first display unit 151 displays an image. value v1, and the voltage value of the first driving voltage V1 is the second voltage value If v2, the second display unit 152 displays the image.

[0038] The adjustment unit 153 is configured to receive an adjustment signal R. The adjustment unit 153 adjusts a first driving voltage end based on the adjustment signal R during a blank period between two consecutive frames of image display, i.e., when the display of the first frame of image ends and before the display of the second frame of image begins. N1 and the second drive voltage end N2 Thereby, charge sharing is performed between the first driving voltage V1 and the second driving voltage V2, and the intermediate voltage V0 can be maintained. In other words, charge sharing can be performed between the first driving voltage end N1 and the second driving voltage end N2, and the intermediate voltage V0 can be maintained.

[0039] The first display unit 151 is electrically connected to the second display unit 152, and when the first display unit 151 and the second display unit 152 alternately display images, charge sharing is performed between the first display unit 151 and the second display unit 152. After the first display unit 151 finishes displaying, it transfers the charge remaining in the first display unit 151 to the second display unit 152 for use in the second display unit 152 displaying an image. Alternatively, after the second display unit 152 finishes displaying, it transfers the charge remaining in the second display unit 152 to the first display unit 151 for use in the first display unit 151 displaying an image.

[0040] During the display of the consecutive multiple frame images, the first display unit 151 displays the first frame image in the consecutive multiple frame images, and the second display unit 152 displays the second frame image in the consecutive multiple frame images. After the display of the first frame image is completed, the first driving voltage V1 and the second driving voltage V2 periodically change to the intermediate voltage V0. After the first driving voltage V1 and the second driving voltage V2 are maintained at the intermediate voltage V0 during a preset period, when displaying the second frame image, the second driving voltage V2 controls the second display unit 152 to display the image.

[0041] The intermediate voltage V0 is the average value of the sum of the first driving voltage V1 and the second driving voltage V2, i.e., V0 = (V1 + V2) / 2. In other words, the difference between the first driving voltage V1 and the intermediate voltage V0 is equal to the difference between the second driving voltage V2 and the intermediate voltage V0, and the first driving voltage V1 and the second driving voltage V2 change periodically around the intermediate voltage V0.

[0042] Referring to FIG. 4, FIG. 4 is an equivalent circuit diagram of the pixel unit 15 in FIG.

[0043] As shown in FIG. 4, the first display unit 151 includes a first signal receiving module 1511, a first voltage stabilizing module 1512, a first conduction control module 1513, a second conduction control module 1514, a first light-emitting module 1515, and a first connection module 1516.

[0044] The first signal receiving module 1511 is connected to the kth data line Sk (1≦k≦m-1) and the jth scanning line Gj (1≦j≦n-1) and is configured to receive a data signal via the kth data line Sk and receive a scanning signal via the jth scanning line.

[0045] The first voltage stabilization module 1512 is connected to the first signal receiving module 1511, the first light-emitting module 1515, and the first conduction control module 1513, and is configured to receive a data signal from the first signal receiving module 1511 and control the first conduction control module 1513 and the first light-emitting module 1515 to be electrically conductive based on the data signal.

[0046] The first conduction control module 1513 is connected to the first light-emitting module 1515 through the first voltage stabilization module 1512 and receives the first control signal and the first driving voltage V1. The second conduction control module 1514 is connected to the first light-emitting module 1515 and receives the first control signal and the second driving voltage V2. The first conduction control module 1513 and the second conduction control module 1514 control the first light-emitting module 1515 to receive the first driving voltage V1 and the second driving voltage V2 based on the first control signal, and emit light through a path formed by the first driving voltage V1 and the second driving voltage V2. In this case, the first driving voltage V1 is greater than the second driving voltage V2, and the current direction is from the first driving voltage V1 to the second driving voltage V2. In other words, in this case, the first drive voltage V1 is greater than the second drive voltage V2, and the current flows from the first drive voltage end N1 to the second drive voltage end N2.

[0047] The first connection module 1516 is connected between the first light-emitting module 1515 and the second display unit 152 and is configured to receive a first conduction signal K1. Under the control of the first conduction signal K1, the charge remaining in the first light-emitting module 1515 after the first light-emitting module 1515 finishes emitting light is transmitted to the second display unit 152 for use in image display by the second display unit 152.

[0048] The second display unit 152 includes a second signal receiving module 1521 , a second voltage stabilizing module 1522 , a third conduction control module 1523 , a fourth conduction control module 1524 , a second light-emitting module 1525 , and a second connecting module 1526 .

[0049] The second signal receiving module 1521 is connected to the (k+1)th data line Sk+1 and the (j+1)th scanning line Gj+1, and receives a data signal via the (k+1)th data line and a scanning signal via the (j+1)th scanning line.

[0050] The second voltage stabilization module 1522 is connected to the second signal receiving module 1521, the second light-emitting module 1525, and the third conduction control module 1523, and is configured to receive a data signal from the second signal receiving module 1521 and control the third conduction control module 1523 and the second light-emitting module 1525 to be electrically conductive based on the data signal.

[0051] The third conduction control module 1523 is connected to the second light-emitting module 1525 through the second voltage stabilization module 1522 and receives the second control signal and the second driving voltage V2. The fourth conduction control module 1524 is connected to the second light-emitting module 1525 and receives the second control signal and the first driving voltage V1. The third conduction control module 1523 and the fourth conduction control module 1524 control the second light-emitting module 1525 to receive the first driving voltage V1 and the second driving voltage V2 based on the second control signal, and emit light through a path formed by the first driving voltage V1 and the second driving voltage V2. In this case, the second driving voltage V2 is greater than the first driving voltage V1, and the current direction is from the second driving voltage V2 to the first driving voltage V1. In other words, in this case, the second drive voltage V2 is greater than the first drive voltage V1, and the current flows from the second drive voltage end N2 to the first drive voltage end N1.

[0052] The second connection module 1526 is connected between the second light-emitting module 1525 and the first display unit 151, and configured to receive a second conduction signal K2. Under the control of the second conduction signal K2, the charge remaining in the second light-emitting module 1525 after the second light-emitting module 1525 finishes emitting light is transmitted to the first display unit 151, and 1 Display unit 151 The present invention is configured to be used for displaying images by the above-mentioned method.

[0053] Specifically, in the first display unit 151, the first signal receiving module 1511 includes a first transistor T1. 1512 The first conduction control module includes a second transistor T2 and a first capacitor C1. 1513 includes a third transistor T3.1514 includes a fourth transistor T4. No. 1 Light Emitting Module 1515 The first connecting module includes a first light emitting diode D1. 1516 includes a fifth transistor T5.

[0054] The gate of the first transistor T1 is connected to the j-th scan line Gj, the source of the first transistor T1 is connected to the k-th data line Sk, and the drain of the first transistor T1 is connected to the second transistor T2. The first transistor T1 is configured to receive a data signal via the k-th data line Sk under the control of a scan signal and transmit the data signal to the second transistor T2.

[0055] The gate of the second transistor T2 is connected to the drain of the first transistor T1, the source of the second transistor T2 is connected to the third transistor T3, and the drain of the second transistor T2 is connected to the anode of the first light-emitting diode D1. Based on a data signal, the source of the second transistor T2 and the drain of the second transistor T2 are controlled to be electrically conductive, and the third transistor T3 and the first light-emitting diode D1 are controlled to be electrically conductive. The first capacitor C1 has one end connected to the drain of the first transistor T1 and the other end connected to the cathode of the first light-emitting diode D1, and is configured to receive a data signal from the drain of the first transistor T1 to be charged and provide a stable voltage while the first light-emitting diode D1 is emitting light.

[0056] The gate of the third transistor T3 receives the first control signal E1, the source of the third transistor T3 receives the first driving voltage V1, and the drain of the third transistor T3 is connected to the source of the second transistor T2. No. 1 Control Signals E1 The source of the second transistor T2 receives the first driving voltage V1 based on the first driving voltage V1. The anode of the first light emitting diode D1 receives the first driving voltage V1 through the second transistor T2.

[0057] The gate of the fourth transistor T4 receives the first control signal E1, the source of the fourth transistor T4 is connected to the cathode of the first light emitting diode D1, and the drain of the fourth transistor T4 receives the second driving voltage V2. The fourth transistor T4 controls the cathode of the first light emitting diode D1 to receive the second driving voltage V2 based on the first control signal E1. That is, the anode of the first light emitting diode D1 receives the first driving voltage V1, and the cathode of the first light emitting diode D1 receives the second driving voltage V2 based on the first control signal E1. In this case, the first driving voltage V1 is greater than the second driving voltage V2, thereby controlling the first light emitting diode D1 to emit light.

[0058] The gate of the fifth transistor T5 receives the first conducting signal K1, the source of the fifth transistor T5 is connected to the cathode of the first light emitting diode D1, and the drain of the fifth transistor T5 is connected to the cathode of the second display unit 152 The fifth transistor T5 is connected to the second display unit 100 in response to the first conductive signal K1. 152 The signal is controlled so that it is transmitted to the

[0059] Second display unit 152 In the second signal receiving module 1521 includes a sixth transistor T6. 1522 The third conduction control module includes a seventh transistor T7 and a second capacitor C2. 1523 includes an eighth transistor T8. control Module 1524 includes a ninth transistor T9. 1526 includes a tenth transistor T10. Second Light Emitting Module 1525 includes a second light emitting diode D2.

[0060] The gate of the sixth transistor T6 is connected to the (j+1)th scan line Gj+1, the source of the sixth transistor T6 is connected to the (k+1)th data line Sk+1, and the drain of the sixth transistor T6 is connected to the seventh transistor T7. The sixth transistor T6 is controlled by a scan signal. (k+1) The data line Sk+1 and transmits the data signal to the seventh transistor T7.

[0061] The gate of the seventh transistor T7 is connected to the drain of the sixth transistor T6, the source of the seventh transistor T7 is connected to the eighth transistor T8, and the drain of the seventh transistor T7 is connected to the anode of the second light-emitting diode D2. Based on the data signal, the source of the seventh transistor T7 and the drain of the seventh transistor T7 are controlled to be electrically conductive, and the eighth transistor T8 and the second light-emitting diode D2 are controlled to be electrically conductive. The second capacitor C2 has one end connected to the drain of the sixth transistor T6 and the other end connected to the cathode of the second light-emitting diode D2, and is configured to receive the data signal from the drain of the sixth transistor T6 to be charged and provide a stable voltage during the light emission of the second light-emitting diode D2.

[0062] The gate of the eighth transistor T8 receives the second control signal E2, the source of the eighth transistor T8 receives the second driving voltage V2, and the drain of the eighth transistor T8 is connected to the source of the seventh transistor T7. Second Control Signals E2 The seventh transistor T7 controls the source of the seventh transistor T7 to receive the second driving voltage V2 based on the signal V2. The anode of the first light emitting diode D1 receives the second driving voltage V2 through the seventh transistor T7.

[0063] The gate of the ninth transistor T9 receives the second control signal E2, the source of the ninth transistor T9 is connected to the cathode of the second light-emitting diode D2, and the drain of the ninth transistor T9 receives the first driving voltage V1. The ninth transistor T9 controls the cathode of the second light-emitting diode D2 to receive the first driving voltage V1 based on the second control signal E2. That is, the anode of the second light-emitting diode D2 receives the second driving voltage V2, and the cathode of the second light-emitting diode D2 receives the first driving voltage V1 based on the second control signal E2. In this case, the second driving voltage V2 is greater than the first driving voltage V1, thereby controlling the second light-emitting diode D2 to emit light.

[0064] The gate of the tenth transistor T10 receives the second conducting signal K2, the source of the tenth transistor T10 is connected to the cathode of the second light emitting diode D2, and the drain of the tenth transistor T10 is connected to the cathode of the first display unit 151 The tenth transistor T10 is connected to the first display unit 100 in response to a second conductive signal K2. 151 The signal is controlled so that it is transmitted to the

[0065] The source of the fifth transistor T5 is connected to the cathode of the first light-emitting diode D1, and the drain of the fifth transistor T5 is connected to the source of the seventh transistor T7. The fifth transistor T5 is controlled by the adjustment signal R to selectively switch the output of the fifth transistor T5 from the cathode of the first light-emitting diode D1 to the source of the seventh transistor T7. charge to the source of the seventh transistor T7. Transmit , and is transmitted to the second light emitting diode D2 through the seventh transistor T7 for the second light emitting diode D2 to emit light.

[0066] The source of the tenth transistor T10 is connected to the cathode of the second light-emitting diode D2, and the drain of the tenth transistor T10 is connected to the source of the second transistor T2. The tenth transistor T10 is controlled by the adjustment signal R to selectively switch the output of the second light-emitting diode D2 from the cathode to the source of the second transistor T2. charge to the source of the second transistor T2. Transmit , Second transistor T2 to the first light emitting diode D1 for light emission by the first light emitting diode D1.

[0067] First Connection Module 1516 and a second connection module 1526 This allows the charge remaining in the circuit to be effectively utilized, thereby improving the response speed of the light-emitting diode and simultaneously reducing power consumption.

[0068] Adjustment Unit 153 The transistor T11 includes an eleventh transistor T11. The gate of the eleventh transistor T11 receives the adjustment signal R, and the source of the eleventh transistor T11 is connected to the first driving voltage end N1 and the drain of the eleventh transistor T11 is connected to the second drive voltage end N2 The source of the eleventh transistor T11 and the drain of the eleventh transistor T11 are controlled to be conductive based on the adjustment signal R, and the first driving voltage End N1 and the second driving voltage End N2 and are controlled to be electrically connected to each other, whereby the first driving voltage V1 and the second driving voltage V2 are controlled to be reset to the intermediate voltage V0.

[0069] The first transistor T1 to the eleventh transistor T11 are all thin film transistors.

[0070] Please refer to FIG. 5, which is a timing diagram of signals in the pixel unit in FIG.

[0071] 5, during an image display by the pixel unit 15, in a first time period t1, the first signal receiving module 1511 in the first display unit 151 receives a scanning signal through the jth scanning line Gj, and transmits a data signal to the first voltage stabilizing module 1512 according to the scanning signal, thereby charging the first capacitor C1 in the first voltage stabilizing module 1512, and controlling the source of the second transistor T2 in the first voltage stabilizing module 1512 to be electrically conductive with the drain of the second transistor T2.

[0072] During the second time period t2, the first conduction control module 1513 and the second conduction control module 1514 simultaneously receive the first control signal E1, and the source of the third transistor T3 in the first conduction control module 1513 is electrically connected to the drain of the third transistor T3, and the source of the fourth transistor T4 in the second conduction control module 1514 is electrically connected to the drain of the fourth transistor T4. Thereby, the anode of the first light-emitting diode D1 in the first light-emitting module 1515 is controlled to receive the first driving voltage V1, and the cathode of the first light-emitting diode D1 is controlled to receive the second driving voltage V2. In this case, the voltage value of the first driving voltage V1 is the first voltage value v1, and the voltage value of the second driving voltage V2 is the second voltage value v2, and the first driving voltage V1 is greater than the second driving voltage V2, thereby driving the first light-emitting diode D1 to emit light, that is, to display the image of the first frame.

[0073] During the third time period t3, the fifth transistor T5 in the first connection module 1516 receives the first conduction signal K1, and controls the source of the fifth transistor T5 to be electrically connected to the drain of the fifth transistor T5 according to the first conduction signal, so that the charge remaining in the first light-emitting module 1515 after the first light-emitting module 1515 finishes emitting light is transmitted to the circuit of the second display unit 152. At the same time, the gate of the eleventh transistor T11 in the adjustment unit 153 receives the adjustment signal R, and controls the source of the eleventh transistor T11 to be electrically connected to the drain of the eleventh transistor T11 according to the adjustment signal R. Thus, the voltage value of the first driving voltage V1 is equal to or higher than the first voltage value v1 to intermediate voltage V0 Voltage value of The voltage value of the first driving voltage V1 is reset to the intermediate voltage V0 during a preset period. Voltage value of After being maintained at the intermediate voltage V0 Voltage value of to the second voltage value v2, and the voltage value of the second driving voltage V2 is changed to the second voltage value v2 to intermediate voltage V0 Voltage value of The voltage value of the second driving voltage V2 is reset to the intermediate voltage V0 during a preset period. Voltage value of After being maintained at the intermediate voltage V0 Voltage value of to the first voltage value At this time, the voltage value of the second driving voltage V2 is greater than the voltage value of the first driving voltage V1.

[0074] In the fourth time period t4, the second signal receiving module 1521 in the second display unit 152 receives the scanning signal transmitted through the (j+1)th scanning line Gj+1, receives a data signal according to the scanning signal, and transmits the data signal to the second voltage stabilizing module 1522. Thus, the second voltage stabilizing module 1522 charges the second capacitor C2 in the second voltage stabilizing module 1522 according to the received data signal, and controls the source of the seventh transistor T7 and the drain of the seventh transistor T7 to be electrically connected.

[0075] During the fifth time period t5, the third conduction control module 1523 and the fourth conduction control module 1524 simultaneously receive the second control signal E2, and the source of the eighth transistor T8 in the third conduction control module 1523 and the drain of the eighth transistor T8 are electrically connected; Fourth Continuity Control Module 1524 In Ninth transistor T9 Source and Ninth transistor T9 The drain of the second light emitting diode D2 in the second light emitting module 1525 is electrically connected to the drain of the second light emitting diode D2. The anode of the second light emitting diode D2 in the second light emitting module 1525 is controlled to receive the second driving voltage V2, and the cathode of the second light emitting diode D2 is controlled to receive the first driving voltage V1. In this case, the second driving voltage V2 is greater than the first driving voltage V1, thereby driving the second light emitting diode D2 to emit light, i.e., to display the image of the second frame.

[0076] During the sixth time period t6, the tenth transistor T10 in the second connection module 1526 outputs a second conductive signal K2 and receiving the second conduction signal K2 The first driving voltage V1 is controlled to electrically connect the source of the tenth transistor T10 to the drain of the tenth transistor T10 based on the adjustment signal R, so that the charge remaining in the second light-emitting module 1525 after the second light-emitting module 1525 finishes emitting light is transmitted to the circuit of the first display unit 151. At the same time, the gate of the eleventh transistor T11 in the adjustment unit 153 receives the adjustment signal R, and controls to electrically connect the source of the eleventh transistor T11 to the drain of the eleventh transistor T10 based on the adjustment signal R, so that the voltage value of the first driving voltage V1 is equal to or higher than the second voltage value v2 to intermediate voltage V0 Voltage value of The voltage value of the first driving voltage V1 is reset to the intermediate voltage V0 during a preset period. Voltage value of After being maintained at the intermediate voltage V0 Voltage value of to the first voltage value v1, and the voltage value of the second driving voltage V2 is changed to the first voltage value v1 to intermediate voltage V0 Voltage value of The voltage value of the second driving voltage V2 is reset to the intermediate voltage V0 during a preset period. Voltage value of After being maintained at the intermediate voltage V0 Voltage value of to the second voltage value At this time, the voltage value of the first driving voltage V1 is greater than the voltage value of the second driving voltage V2.

[0077] By setting a first light emitting diode and a second light emitting diode, and driving the first light emitting diode and the second light emitting diode with AC voltage respectively, the two light emitting diodes emit light alternately during displaying a plurality of consecutive frames of images, thereby effectively shortening the light emitting time of each light emitting diode and improving the light emitting life of the pixel unit. In addition, when the two light emitting diodes emit light alternately, charge sharing can be performed between the two light emitting diodes, and the charge left in the light emitting diode that has finished emitting light can be transferred to another light emitting diode and used for the light emitting of the other light emitting diode, thereby greatly reducing the power consumption during the light emitting of the pixel unit.

[0078] The application of the present invention is not limited to the above examples, and those skilled in the art may improve or modify it based on the above description, and all of these improvements and modifications should fall within the scope of protection of the appended claims of the present invention. [Explanation of symbols]

[0079] Display device...100, display module...10, power supply module...20, support frame...30, data driving circuit...11, scanning driving circuit...12, display panel...13, display area...13a, display control circuit...14, pixel unit...15, light emitting controller...16, first direction...F1, second direction...F2, clock signal...CLK, data line...S, scanning line...G, data signal...Data, horizontal synchronization signal...Hsyn, vertical synchronization signal...Vsyn, gate output control signal...Cg, source output control signal...Cs, first display unit...151, second display unit...152, adjustment unit...153, first driving voltage...V1, second driving voltage...V2, intermediate voltage...V0, first voltage value …v1, second voltage value...v2, first signal receiving module...1511, first voltage stabilization module...1512, first continuity control module...1513, second continuity control module...1514, first light emitting module...1515, first connection module...1516, second signal receiving module...1521, second voltage stabilization module...1522, third continuity control module...1523, fourth continuity control module...1524, second light emitting module...1525, second connection module...1526, First transistor...T1, second transistor...T2, first capacitor...C1, third transistor...T3, fourth transistor...T4, first light-emitting diode...D1, fifth transistor...T5, first control signal...E1, first conduction signal...K1, sixth transistor...T6, seventh transistor...T7, eighth transistor...T8, ninth transistor...T9, tenth transistor...T10, second light-emitting diode...D2, second conduction signal...K2, eleventh transistor...T11, adjustment signal...R.

Claims

1. A display panel, the display panel comprising a plurality of pixel units arranged in a matrix, the plurality of pixel units configured to receive a data signal for displaying an image; Each of the pixel units comprises a first display unit, a second display unit and an adjustment unit, the first display unit and the second display unit are connected in parallel between a first driving voltage end and a second driving voltage end, the first driving voltage end is configured to receive a first driving voltage, and the second driving voltage end is configured to receive a second driving voltage; during display of two consecutive frame images, when a first frame image of the two frame images is displayed, the first driving voltage is greater than the second driving voltage, and the first driving voltage and the second driving voltage work together to drive the first display unit to display an image; and when a second frame image of the two frame images is displayed, the second driving voltage is greater than the first driving voltage, and the first driving voltage and the second driving voltage work together to drive the second display unit to display an image; the first display unit and the second display unit are configured to sequentially and alternately display a plurality of frames of images by cooperative driving of the first driving voltage and the second driving voltage; the adjustment unit, the first display unit, and the second display unit are connected in parallel between the first driving voltage end and the second driving voltage end, and the adjustment unit is configured to, during display of two consecutive frames of images, electrically conduct the first driving voltage end and the second driving voltage end when the display of the first frame image ends and before the display of the second frame image starts, to balance charges between the first driving voltage end and the second driving voltage end. A display panel characterized by:

2. The display panel further includes a plurality of scanning lines extending along a first direction and a plurality of data lines extending along a second direction, the first direction being perpendicular to the second direction, the pixel units being provided at intersections of the plurality of scanning lines and the plurality of data lines, the pixel units being configured to receive scanning signals via the scanning lines and to receive data signals for image display under the control of the scanning signals.

2. The display panel according to claim 1 .

3. The first display unit includes a first signal receiving module, a first voltage stabilizing module, and a first light emitting module; the first signal receiving module is connected to the data line and the scanning line, and is configured to receive the scanning signal through the scanning line, receive the data signal through the data line, and transmit the data signal to the first voltage stabilization module; the first voltage stabilization module is connected to the first signal receiving module and the first light emitting module, and is configured to receive and store the data signal from the first signal receiving module, and apply a stable voltage to the first light emitting module during light emission of the first light emitting module; the first light emitting module is configured to emit light when the first driving voltage and the second driving voltage are applied to the first light emitting module; 3. The display panel according to claim 2.

4. The first display unit further includes a first conduction control module and a second conduction control module; The first conduction control module is connected to the first voltage stabilizing module and the first driving voltage end, and is configured to receive a first control signal and control the first driving voltage end to be electrically connected to the first voltage stabilizing module according to the first control signal, and the first conduction control module is electrically connected to the first light-emitting module through the first voltage stabilizing module; the second conduction control module is connected to the first light-emitting module and the second driving voltage end, and is configured to receive the first control signal and control, according to the first control signal, the second driving voltage end to be electrically connected to the first light-emitting module; When the first driving voltage is greater than the second driving voltage, the first driving voltage end, the first conduction control module, the first voltage stabilization module, the first light-emitting module, the second conduction control module and the second driving voltage end cooperate to form an output loop, so as to drive the first light-emitting module to emit light; 4. The display panel according to claim 3.

5. the first display unit further comprises a first connection module, the first connection module being connected between the first light emitting module and the second display unit, and configured to receive a first conductive signal, and transmit, under the control of the first conductive signal, charges remaining in the first light emitting module after the first light emitting module has finished emitting light to the second display unit, for use in image display by the second display unit; 5. The display panel according to claim 4.

6. The second display unit includes a second signal receiving module, a second voltage stabilizing module, and a second light emitting module; the second signal receiving module is connected to the data line and the scanning line, and is configured to receive the scanning signal through the scanning line, receive the data signal through the data line, and transmit the data signal to the second voltage stabilization module; the second voltage stabilization module is connected to the second signal receiving module and the second light emitting module, and is configured to receive and store the data signal from the second signal receiving module, and apply a stable voltage to the second light emitting module during light emission of the second light emitting module; the second light-emitting module is configured to emit light when connected to the first driving voltage end and the second driving voltage end; 3. The display panel according to claim 2.

7. The second display unit further includes a third conduction control module and a fourth conduction control module; The third conduction control module is connected to the second voltage stabilizing module and a second driving voltage end, and is configured to receive a second control signal and control the second driving voltage end to be electrically connected to the second voltage stabilizing module according to the second control signal, and the third conduction control module is electrically connected to the second light-emitting module through the second voltage stabilizing module; the fourth conduction control module is connected to the second light-emitting module and the first driving voltage end, and is configured to receive the second control signal and control, according to the second control signal, that the first driving voltage end is electrically connected to the second light-emitting module; When the second driving voltage is greater than the first driving voltage, the second driving voltage end, the third conduction control module, the second voltage stabilization module, the second light-emitting module, the fourth conduction control module and the first driving voltage end cooperate to form an output loop, so as to drive the second light-emitting module to emit light; 7. The display panel according to claim 6.

8. the second display unit further comprises a second connection module, the second connection module being connected between the second light emitting module and the first display unit, and configured to receive a second conductive signal, and transmit, under the control of the second conductive signal, charges remaining in the second light emitting module after the second light emitting module has finished emitting light to the first display unit, for use in image display by the first display unit.

8. The display panel according to claim 7.

9. A display module, comprising: a data driving circuit; a scanning driving circuit; a display control circuit; a light emission controller; and a display panel according to any one of claims 1 to 8; the data driving circuit is configured to receive a source output control signal from the display control circuit and output a data signal based on the source output control signal; the scan drive circuit is configured to receive a gate output control signal from the display control circuit and output a scan signal based on the gate output control signal; The pixel units in the display panel are configured to display an image under the control of the light emission controller based on the scanning signal and the data signal. A display module characterized by:

10. A display device comprising a support frame, a power supply module, and the display module according to claim 9, wherein the power supply module applies a power supply voltage to the display panel so that the display panel displays an image, and the display module and the power supply module are fixed to the support frame. A display device comprising:

Images