Driving circuit, display panel, and display device
Patent Information
- Application Number
- KR1020257015403
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-10-12
- Filing Date
- 2023-06-15
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2043-06-15
Smart Images

Figure 112025052377117-PCT00002_ABST
Abstract
Description
Technology Field
[0001] (Related Application)
[0002] This application claims priority to a Chinese patent application filed with the Chinese Intellectual Property Office on October 12, 2022, with application number 202211248818.6 and title of invention "driving circuit, display panel and display device", all contents of said application are incorporated herein by reference.
[0003] The application relates to the field of display technology, and in particular to a driving circuit, a display panel having a driving circuit, and a display device having a display panel. Background Technology
[0004] Currently, when a display screen operates for a long time, the DC data signal runs for an extended period, which shortens the lifespan of the Thin Film Transistor (TFT) and affects the product's service life.
[0005] Therefore, how to resolve the problem of shortened TFT lifespan caused by the prolonged operation of DC data signals is an urgent issue that engineers in this field must address.
[0006] Considering the shortcomings of the aforementioned existing technology, the objective of this application is to provide a driving circuit and to extend the service life of a product by solving the problem of shortened TFT lifespan caused by prolonged driving of DC data signals.
[0007] To solve the technical problem described above, in a first embodiment, the present application provides a driving circuit. The driving circuit includes a first light emission control subcircuit, a second light emission control subcircuit, a light emission unit, an energy storage element, a computation subcircuit, a first data input subcircuit, and a second data input subcircuit. Both the first light emission control subcircuit and the second light emission control subcircuit are electrically connected to the light emission unit, the energy storage element, the computation subcircuit, the first data input subcircuit, the second data input subcircuit, and the first power supply voltage terminal. Both the first light emission control subcircuit and the second light emission control subcircuit are used to drive the light emission unit to emit light. The positive electrode of the light emission unit is electrically connected to the first light emission control subcircuit, the second light emission control subcircuit, the energy storage element, and the computation subcircuit. The negative electrode of the light emission unit is electrically connected to the second power supply voltage terminal. The light emission unit is used to emit light, the energy storage element is electrically connected to the computation subcircuit and used to store electrical energy. The computation subcircuit is electrically connected to the first data input subcircuit, the second data input subcircuit, and the reference voltage terminal. The voltage at the point where the energy storage element and the computation subcircuit are electrically connected and the reference voltage terminal It is used to obtain an output signal by comparing a received reference voltage and to transmit the output signal to a first data input sub-circuit and a second data input sub-circuit, and the first data input sub-circuit is electrically connected to the second data input sub-circuit and the first data signal terminal and is turned on or turned off according to an output signal transmitted through an operation sub-circuit, and when turned on, it is used to transmit a first data signal input from the first data signal terminal to a first light emission control sub-circuit and a second light emission control sub-circuit to drive a light emission unit to emit light.The second data input sub-circuit is electrically connected to the second data signal terminal and is turned on or off according to an output signal transmitted through the operation sub-circuit; when turned on, it transmits the second data signal input from the second data signal terminal to the first light emission control sub-circuit and the second light emission control sub-circuit to drive the light emission unit to emit light.
[0008] Based on the same technical concept, in a second aspect, the present application also provides a display panel. The display panel includes the driving circuit described above, and the driving circuit is used for image display.
[0009] Based on the same technical concept, in a third aspect, the present application also provides a display device. The display device includes the display panel described above.
[0010] To summarize the above, in the driving circuit, display panel, and display device provided in the embodiment of the present application, when the light-emitting unit starts operating, the storage capacitor starts to charge. When the voltage at the point where the energy storage element and the operation subcircuit are electrically connected is less than the reference voltage output from the reference voltage terminal, the amplifier outputs a low-level signal, the first data input subcircuit is turned on, the first data signal input from the first data signal terminal is transmitted to the gate electrode of the first driving transistor and the gate electrode of the second driving transistor, and the first driving transistor or the second driving transistor is turned on. When the voltage at the point where the energy storage element and the operation subcircuit are electrically connected is greater than the reference voltage output from the reference voltage terminal, the amplifier outputs a high-level signal, the second switch transistor is turned on, the second data signal input from the second data signal terminal is transmitted to the gate electrode of the first driving transistor and the gate electrode of the second driving transistor, and the first driving transistor or the second driving transistor is turned on, thereby switching from DC driving to AC driving, and the display life of the TFT is effectively extended. Brief explanation of the drawing
[0011] In order to more clearly explain the technical solution according to the embodiments of the present application, the accompanying drawings necessary for explaining the embodiments are briefly introduced below. It is evident that the accompanying drawings exemplified below are merely some embodiments of the present application, and that a person skilled in the art can obtain other drawings based on these drawings without creative effort. FIG. 1 is a schematic diagram showing the structure of a display panel provided in an embodiment of the present application. FIG. 2 is a schematic diagram showing the circuit of the driving circuit provided in an embodiment of the present application. Figure 3 is a schematic diagram showing the circuit structure of the driving circuit illustrated in Figure 2. FIG. 4 is a timing diagram of a driving circuit provided in an embodiment of the present application. FIG. 5 is another timing diagram of the driving circuit provided in an embodiment of the present application. Specific details for implementing the invention
[0012] To facilitate a better understanding of the present application, the application will be described more comprehensively below with reference to the associated drawings. The attached drawings disclose preferred embodiments of the present application. However, the present application is not limited to the embodiments described herein and may be realized in various forms. Conversely, the purpose of providing such embodiments is to enable a more comprehensive understanding of the disclosed contents of the present application.
[0013] The description of each embodiment below refers to the attached drawings and is used to illustrate specific embodiments of the present application that are feasible. In the text, part numbers, such as "first," "second," etc., are used solely to distinguish the objects being described and do not imply any order or technical significance. Unless otherwise specified, terms such as "connection" and "joint" mentioned in this application include direct connection (joint) or indirect connection (joint). Directional terms mentioned in this application, such as "up," "down," "front," "back," "left," "right," "inside," "outside," and "side," are merely directions indicated based on the drawings; therefore, the use of directional terms is intended to better describe and more clearly explain and understand this application, and does not specify or imply that a device or component must have a specific direction or must be configured or operated in a specific direction, and thus should not be understood as limiting this application.
[0014] It must be explained in the description of this application that, unless otherwise explicitly defined or limited, the terms 'mounting,' 'connection,' and 'joining' should be understood in a broad sense, for example, they may be fixed connections, detachable connections, integral connections, mechanical connections, direct connections, indirect connections using an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meaning of the aforementioned terms in this application according to the specific circumstances. It must be explained that terms such as 'first,' 'second,' etc., as used in the specification, claims, and drawings of this application are used to distinguish different objects rather than to describe a specific order.
[0015] Furthermore, the terms “comprising,” “may compose,” “including,” and “may include” as used in this application indicate the existence of disclosed functions, operations, elements, etc., and do not limit one or more other functions, operations, elements, etc. Additionally, the terms “comprising” or “including” indicate the existence of corresponding features, quantities, steps, operations, elements, parts, or combinations thereof disclosed in the description, and do not exclude the existence or addition of one or more other features, quantities, steps, operations, elements, parts, or combinations thereof, and are intended to cover non-exclusive inclusion. Furthermore, when describing embodiments of this application, “may” indicates “one or more embodiments of this application.” The term “exemplary” is intended to refer to an exemplary or illustrative description.
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art. The terms used in this document, i.e., in the specification of this application, are intended to describe specific embodiments and are not intended to limit this application.
[0017] The embodiments of the present application provide technical solutions for a driving circuit, a display panel, and a display device capable of solving the aforementioned technical problems, thereby solving the issue of shortened lifespan of a Thin Film Transistor (TFT) due to prolonged operation of a DC data signal, and extending the lifespan of the product. Further details are explained in subsequent embodiments.
[0018] Referring to FIG. 1, FIG. 1 is a schematic diagram illustrating the structure of a display panel provided in an embodiment of the present application. In this embodiment, the display panel (10) includes an active area (11) and a non-display area (12). The active area (11) is used for displaying an image, and the non-display area (12) is installed around the active area (11) and is not used for displaying an image. The display panel (10) further includes a plurality of driving circuits (100), all of which are installed in the active area (11) and are used for displaying an image. As can be understood, in some embodiments, the display panel (10) may be a Micro Light-Emitting Diode (Micro LED) display panel or an Organic Light-Emitting Diode (OLED) display panel, but the present application is not limited thereto.
[0019] As can be understood, the display panel (10) may be used in electronic devices including a Personal Digital Assistant (PDA) and / or a music player, such as mobile phones, tablet computers, and wearable electronic devices with wireless communication capabilities (e.g., smartwatches and smart bands). The electronic device may also be another electronic device, such as a laptop computer, that has a touch surface, such as a touch panel. In some embodiments, the electronic device may have communication capabilities. That is, it may establish communication with a network via 2G (2nd Generation Mobile Phone Communication Technology Specification), 3G (3rd Generation Mobile Phone Communication Technology Specification), 4G (4th Generation Mobile Phone Communication Technology Specification), 5G (5th Generation Mobile Phone Communication Technology Specification), or wireless LAN (W-LAN) or any communication method that may appear in the future. For brevity, the embodiments of this application are not limited thereto.
[0020] Referring to FIG. 2, FIG. 2 is a schematic diagram showing the circuit of a driving circuit provided in an embodiment of the present application. As shown in FIG. 2, the driving circuit (100) provided in an embodiment of the present application may include at least a first light-emitting control sub-circuit (110), a second light-emitting control sub-circuit (120), a light-emitting unit (140), an energy storage element (150), a computation sub-circuit (160), a first data input sub-circuit (180), and a second data input sub-circuit (190).
[0021] The first light-emitting control sub-circuit (110) is electrically connected to the second light-emitting control sub-circuit (120), the light-emitting unit (140), the energy storage element (150), the computation sub-circuit (160), the first data input sub-circuit (180), the second data input sub-circuit (190), and the first power supply voltage terminal (210) and is used to drive the light-emitting unit (140) to emit light. The first power supply voltage terminal (210) is the first power supply voltage (V dd Receives ).
[0022] The second light-emitting control sub-circuit (120) is electrically connected to the first light-emitting control sub-circuit (110), the light-emitting unit (140), the energy storage element (150), the operation sub-circuit (160), the first data input sub-circuit (180), the second data input sub-circuit (190), and the first power supply voltage terminal (210) and is used to drive the light-emitting unit (140) to emit light.
[0023] The positive electrode of the light-emitting unit (140) is electrically connected to the first light-emitting control sub-circuit (110), the second light-emitting control sub-circuit (120), the energy storage element (150), and the computational sub-circuit (160), and the negative electrode of the light-emitting unit (140) is electrically connected to the second power supply voltage terminal (220). The light-emitting unit (140) is used to emit light. The second power supply voltage terminal (220) is the second power supply voltage (V ss ) receives, and the second power supply voltage (V ss ) is the negative connection reference voltage.
[0024] In an embodiment of the present application, the light-emitting unit (140) may be a Micro LED.
[0025] The energy storage element (150) is electrically connected to the first light-emitting control subcircuit (110), the second light-emitting control subcircuit (120), the light-emitting unit (140), and the operation subcircuit (160) and is used to store electrical energy. After the energy storage element (150) is charged, point D, which is located between the second light-emitting control subcircuit (120) and the energy storage element (150) (e.g., a midpoint location) and is electrically connected to the operation subcircuit (160), obtains a D-point voltage.
[0026] The operation subcircuit (160) is electrically connected to the second light emission control subcircuit (120), the energy storage element (150), the first data input subcircuit (180), the second data input subcircuit (190), and the reference voltage terminal (230), and the reference voltage (V) received by the D-point voltage and the reference voltage terminal (230). ref It is used to obtain an output signal by comparing ) and to transmit the output signal to the first data input subcircuit (180) and the second data input subcircuit (190). The reference voltage terminal (230) is a reference voltage (V ref Receives ).
[0027] The first data input sub-circuit (180) is electrically connected to the first light-emitting control sub-circuit (110), the second light-emitting control sub-circuit (120), the operation sub-circuit (160), the second data input sub-circuit (190), and the first data signal terminal (250), and is turned on or turned off according to the output signal transmitted from the operation sub-circuit (160). When turned on, it is used to transmit the first data signal input from the first data signal terminal (250) to the first light-emitting control sub-circuit (110) and the second light-emitting control sub-circuit (120) to drive the light-emitting unit (140) to emit light. The first data signal may be a DC data signal.
[0028] The second data input sub-circuit (190) is electrically connected to the first light-emitting control sub-circuit (110), the second light-emitting control sub-circuit (120), the operation sub-circuit (160), the first data input sub-circuit (180), and the second data signal terminal (260), and is turned on or turned off according to the output signal transmitted from the operation sub-circuit (160). When turned on, it is used to transmit the second data signal input from the second data signal terminal (260) to the first light-emitting control sub-circuit (110) and the second light-emitting control sub-circuit (120) to drive the light-emitting unit (140) to emit light. The second data signal is an AC data signal.
[0029] As described above, when the light-emitting unit (140) in the driving circuit starts to operate, the energy storage element (150) starts to charge. The reference voltage (V) at point D is output from the reference voltage terminal (230). ref When it is smaller than ), the operation subcircuit (160) outputs a low-level signal, the first data input subcircuit (180) is turned on, the first data signal input from the first data signal terminal (250) is transmitted to the first light emission control subcircuit (110) and the second light emission control subcircuit (120), and the first light emission control subcircuit (110) or the second light emission control subcircuit (120) is turned on. The reference voltage (V) output from the reference voltage terminal (230) at point D is a reference voltage. ref When greater than ), the operation subcircuit (160) outputs a high-level signal, the second data input subcircuit (190) is turned on, the second data signal input from the second data signal terminal (260) is transmitted to the first light emission control subcircuit (110) and the second light emission control subcircuit (120), and the first light emission control subcircuit (110) or the second light emission control subcircuit (120) is turned on, thereby switching from DC driving to AC driving, and the display life of the TFT is effectively extended.
[0030] Referring to FIG. 3, FIG. 3 is a schematic diagram showing the circuit structure of the driving circuit illustrated in FIG. 2. As illustrated in FIG. 3, in the driving circuit (100) provided in the present application, the first light emission control subcircuit (110) includes a first driving transistor (T1). The gate electrode of the first driving transistor (T1) is electrically connected to the second light emission control subcircuit (120), the first data input subcircuit (180), and the second data input subcircuit (190); the drain electrode of the first driving transistor (T1) is electrically connected to the second light emission control subcircuit (120) and the first power supply voltage terminal (210); and the source electrode of the first driving transistor (T1) is electrically connected to the second light emission control subcircuit (120), the anode of the light emission unit (140), the energy storage element (150), and the operation subcircuit (160). The first driving transistor (T1) is used to drive the light emission unit (140) to emit light.
[0031] In an embodiment of the present application, the first driving transistor (T1) may be an N-type transistor.
[0032] The second light-emitting control subcircuit (120) includes a second driving transistor (T2). The gate electrode of the second driving transistor (T2) is electrically connected to the gate electrode of the first driving transistor (T1), the first data input subcircuit (180), and the second data input subcircuit (190). The source electrode of the second driving transistor (T2) is electrically connected to the drain electrode of the first driving transistor (T1) and the first power supply voltage terminal (210). The drain electrode of the second driving transistor (T2) is electrically connected to the source electrode of the first driving transistor (T1), the anode of the light-emitting unit (140), the energy storage element (150), and the operation subcircuit (160). The second driving transistor (T2) is used to drive the light-emitting unit (140) to emit light.
[0033] In an embodiment of the present application, the second driving transistor (T2) may be a P-type transistor.
[0034] The energy storage device (150) includes a storage capacitor (C1). The first terminal of the storage capacitor (C1) is electrically connected to the source electrode of the first driving transistor (T1), the positive electrode of the light-emitting unit (140), the drain electrode of the second driving transistor (T2), and the operation subcircuit (160), and the second terminal of the storage capacitor (C1) is grounded. The energy storage device (150) is used to charge and store electrical energy.
[0035] The operation subcircuit (160) includes an amplifier (U1). The non-inverting input end of the amplifier (U1) is electrically connected between the drain electrode of the second driving transistor (T2) and the first terminal of the storage capacitor (C1) and is used to receive the D-point voltage. The inverting input end of the amplifier (U1) receives the reference voltage (V) received from the reference voltage terminal (230). ref It is used to input ). The output terminal of the amplifier (U1) is electrically connected to the first data input subcircuit (180) and the second data input subcircuit (190). The amplifier (U1) receives the D-point voltage and the reference voltage (V) received from the reference voltage terminal (230). ref It is used to obtain the corresponding output signal by comparing ) and to transmit the output signal to the first data input subcircuit (180) and the second data input subcircuit (190).
[0036] In an embodiment of the present application, the amplifier (U1) may be an operational amplifier (OP).
[0037] The first data input subcircuit (180) includes a first switch transistor (T3). The gate electrode of the first switch transistor (T3) is electrically connected to the output terminal of the amplifier (U1) and the second data input subcircuit (190), the source electrode of the first switch transistor (T3) is electrically connected to the first data signal terminal (250), and the drain electrode of the first switch transistor (T3) is electrically connected to the gate electrode of the first driving transistor (T1), the gate electrode of the second driving transistor (T2), and the second data input subcircuit (190). The first switch transistor (T3) is turned on or turned off according to an output signal transmitted from the output terminal of the amplifier (U1), and when turned on, it is used to transmit a first data signal input from the first data signal terminal (250) to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2).
[0038] In an embodiment of the present application, the first switch transistor (T3) may be a P-type transistor.
[0039] The second data input subcircuit (190) includes a second switch transistor (T4). The gate electrode of the second switch transistor (T4) is electrically connected to the output terminal of the amplifier (U1) and the gate electrode of the first switch transistor (T3), and the source electrode of the second switch transistor (T4) is electrically connected to the gate electrode of the first driving transistor (T1), the gate electrode of the second driving transistor (T2), and the drain electrode of the first switch transistor (T3), and the drain electrode of the second switch transistor (T4) is electrically connected to the second data signal terminal (260). The second switch transistor (T4) is turned on or turned off according to the output signal transmitted from the output terminal of the amplifier (U1), and when turned on, it is used to transmit the second data signal input from the second data signal terminal (260) to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2).
[0040] In an embodiment of the present application, the second switch transistor (T4) may be an N-type transistor.
[0041] Referring together with FIG. 4, FIG. 4 is a timing diagram of a driving circuit provided in an embodiment of the present application. As shown in FIG. 4, when a first data signal is input at the first data signal terminal (250), the first data signal is input to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) and the second driving transistor (T2) are turned on, thereby driving the light-emitting unit (140) so that the light-emitting unit (140) emits light, and the storage capacitor (C1) begins to charge. The reference voltage (V) at point D is output at the reference voltage terminal (230). refWhen it is smaller than ), the output terminal of the amplifier (U1) outputs a low-level signal, the first switch transistor (T3) conducts, and the first data signal input from the first data signal terminal (250) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) or the second driving transistor (T2) operates.
[0042] Referring together with FIG. 5, FIG. 5 is another timing diagram of a driving circuit provided in an embodiment of the present application. Specifically, two steps t1 and t2 are selected in the timing diagram shown in FIG. 5. Details of the timing diagram of the driving circuit shown in FIG. 5 are described in subsequent embodiments.
[0043] In steps t1 and t2, when a second data signal is input at the second data signal terminal (260), the second data signal input at the second data signal terminal (260) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) and the second driving transistor (T2) are turned on, thereby driving the light-emitting unit (140) to emit light and the storage capacitor (C1) begins to charge. The reference voltage (V) at point D is output at the reference voltage terminal (230). ref When it is greater than ), the output terminal of the amplifier (U1) outputs a high-level signal, the second switch transistor (T4) conducts, and the second data signal input from the second data signal terminal (260) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) or the second driving transistor (T2) operates alternately in the cycle of T1 and T2.
[0044] Specifically, in step t1, when a second data signal is input from the second data signal unit (260), the second data signal input from the second data signal unit (260) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) is turned on, thereby driving the light-emitting unit (140) to emit light.
[0045] In step t2, when a second data signal is input from the second data signal unit (260), the second data signal input from the second data signal unit (260) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the second driving transistor (T2) is turned on, thereby driving the light-emitting unit (140) to emit light.
[0046] As described above, in the driving circuit, when the light-emitting unit (140) starts to operate, the storage capacitor (C1) starts to charge. The reference voltage (V) at point D is output from the reference voltage terminal (230). ref When it is smaller than ), the amplifier (U1) outputs a low-level signal, the first data input subcircuit (180) is turned on, the first data signal input from the first data signal terminal (250) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) or the second driving transistor (T2) is turned on. The reference voltage (V) at point D is output from the reference voltage terminal (230). refWhen it is greater than ), the amplifier (U1) outputs a high-level signal, the second switch transistor (T4) is turned on, and the second data signal input from the second data signal terminal (260) is transmitted to the gate electrode of the first driving transistor (T1) and the gate electrode of the second driving transistor (T2), and the first driving transistor (T1) or the second driving transistor (T2) is turned on, thereby switching from DC driving to AC driving, and the display life of the TFT is effectively extended.
[0047] Based on the same concept, the present application also provides a display device comprising the display panel described above. The display device includes, but is not limited to, electronic devices or components having display functions such as Micro LED panels, mobile phones, tablet computers, navigation systems, and displays, and the present application does not specifically limit such devices. According to the embodiments of the present application, there are no particular limitations on the specific types of the display device, and those skilled in the art may design the display device according to specific usage requirements, which are not described further herein.
[0048] In one embodiment, the display device also includes other necessary parts and components, such as a power board, a high-voltage board, and a key control board. Those skilled in the art may make corresponding additions depending on the specific type and actual function of the display device, which are not described further herein.
[0049] The flowcharts described in this application are merely examples, and various modifications and changes may be made to the drawings or steps of this application without departing from the essence of this application. For example, these steps may be performed in a different order, or some steps may be added, deleted, or modified. Those skilled in the art can understand and implement all or part of the processes of the above-described examples, and such changes made in accordance with the claims of this application are still within the scope of this application.
[0050] In the description of this specification, reference terms such as 'one embodiment,' 'some embodiment,' 'exemplary embodiment,' 'example,' 'specific example,' or 'some example' mean that specific features, structures, materials, or characteristics described by combining the above-described embodiments or examples are included in at least one embodiment or example of this application. Exemplary descriptions of the terms described above in this specification do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.
[0051] The application of this application is not limited to the examples described above, and those skilled in the art may make improvements or modifications in accordance with the description above, and it will be understood that all such improvements and modifications fall within the scope of protection of the claims of this application. Those skilled in the art may understand and implement all or part of the methods of the embodiments described above, and the same modifications made in accordance with the claims of this application still fall within the scope of this application.
Claims
Claim 1 As a driving circuit, it includes a first light emission control sub-circuit, a second light emission control sub-circuit, a light emission unit, an energy storage element, a computation sub-circuit, a first data input sub-circuit, and a second data input sub-circuit; the first light emission control sub-circuit and the second light emission control sub-circuit are both electrically connected to the light emission unit, the energy storage element, the computation sub-circuit, the first data input sub-circuit, the second data input sub-circuit, and the first power supply voltage terminal; the first light emission control sub-circuit and the second light emission control sub-circuit are both used to drive the light emission unit to emit light; the anode of the light emission unit is electrically connected to the first light emission control sub-circuit, the second light emission control sub-circuit, the energy storage element, and the computation sub-circuit; the cathode of the light emission unit is electrically connected to the second power supply voltage terminal; the light emission unit is used to emit light; the energy storage element is electrically connected to the computation sub-circuit and used to store electrical energy; and the computation sub-circuit is electrically connected to the first data input sub-circuit, the second data input sub-circuit, and the reference voltage terminal It is connected, and is used to obtain an output signal by comparing the voltage at the point where the energy storage element and the operation subcircuit are electrically connected with the reference voltage received by the reference voltage terminal, and to transmit the output signal to the first data input subcircuit and the second data input subcircuit, wherein the first data input subcircuit is electrically connected to the second data input subcircuit and the first data signal terminal and is turned on or turned off according to the output signal transmitted through the operation subcircuit, and when turned on, is used to transmit the first data signal input from the first data signal terminal to the first light emission control subcircuit and the second light emission control subcircuit to drive the light emission unit to emit light.A driving circuit characterized in that the second data input sub-circuit is electrically connected to the second data signal terminal and is turned on or off according to an output signal transmitted through the operation sub-circuit, and when turned on, transmits the second data signal input from the second data signal terminal to the first light emission control sub-circuit and the second light emission control sub-circuit to drive the light emission unit to emit light. Claim 2 A driving circuit according to claim 1, wherein the first light emission control subcircuit includes a first driving transistor, the gate electrode of the first driving transistor is electrically connected to the second light emission control subcircuit, the first data input subcircuit, and the second data input subcircuit, the drain electrode of the first driving transistor is electrically connected to the second light emission control subcircuit and the first power supply voltage terminal, the source electrode of the first driving transistor is electrically connected to the second light emission control subcircuit, the anode of the light emission unit, the energy storage element, and the operation subcircuit, and the first driving transistor is used to drive the light emission unit to emit light. Claim 3 A driving circuit according to claim 2, wherein the second light-emitting control subcircuit includes a second driving transistor, the gate electrode of the second driving transistor is electrically connected to the gate electrode of the first driving transistor, the first data input subcircuit, and the second data input subcircuit, the source electrode of the second driving transistor is electrically connected to the drain electrode of the first driving transistor and the first power supply voltage terminal, the drain electrode of the second driving transistor is electrically connected to the source electrode of the first driving transistor, the anode of the light-emitting unit, the energy storage element, and the operation subcircuit, and the second driving transistor is used to drive the light-emitting unit to emit light. Claim 4 A driving circuit according to claim 3, wherein the energy storage element includes a storage capacitor, the first terminal of the storage capacitor is electrically connected to the source electrode of the first driving transistor, the anode of the light-emitting unit, the drain electrode of the second driving transistor, and the operation subcircuit, the second terminal of the storage capacitor is grounded, and the energy storage element is used to charge and store electrical energy. Claim 5 A driving circuit according to claim 4, wherein the operation subcircuit includes an amplifier, the non-inverting input terminal of the amplifier is electrically connected between the drain electrode of the second driving transistor and the first terminal of the storage capacitor and is used to receive a voltage at a point where the energy storage element and the operation subcircuit are electrically connected, the inverting input terminal of the amplifier is used to input a reference voltage received at the reference voltage terminal, the output terminal of the amplifier is electrically connected to the first data input subcircuit and the second data input subcircuit, and the amplifier is used to obtain a corresponding output signal by comparing the voltage at the point where the energy storage element and the operation subcircuit are electrically connected with the reference voltage received at the reference voltage terminal, and to transmit the output signal to the first data input subcircuit and the second data input subcircuit. Claim 6 A driving circuit according to claim 5, wherein the first data input subcircuit includes a first switch transistor, the gate electrode of the first switch transistor is electrically connected to the output terminal of the amplifier and the second data input subcircuit, the source electrode of the first switch transistor is electrically connected to the first data signal terminal, the drain electrode of the first switch transistor is electrically connected to the gate electrode of the first driving transistor, the gate electrode of the second driving transistor, and the second data input subcircuit, and the first switch transistor is turned on or turned off according to an output signal output from the output terminal of the amplifier, and when turned on, is used to transmit a first data signal input from the first data signal terminal to the gate electrode of the first driving transistor and the gate electrode of the second driving transistor. Claim 7 A driving circuit according to claim 6, wherein the second data input sub-circuit includes a second switch transistor, the gate electrode of the second switch transistor is electrically connected to the output terminal of the amplifier and the gate electrode of the first switch transistor, the source electrode of the second switch transistor is electrically connected to the gate electrode of the first driving transistor, the gate electrode of the second driving transistor, and the drain electrode of the first switch transistor, the drain electrode of the second switch transistor is electrically connected to the second data signal terminal, and the second switch transistor is turned on or turned off according to an output signal output from the output terminal of the amplifier, and when turned on, is used to transmit a second data signal input from the second data signal terminal to the gate electrode of the first driving transistor and the gate electrode of the second driving transistor. Claim 8 A driving circuit according to claim 1, wherein the first data signal is a DC data signal and the second data signal is an AC data signal. Claim 9 A display panel comprising a driving circuit described in any one of claims 1 to 8, wherein the driving circuit is used for image display. Claim 10 A display device characterized by including a display panel as described in claim 9. Claim 11 delete Claim 12 delete Claim 13 delete Claim 14 delete Claim 15 delete Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete
Citation Information
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