Display driving circuit, display panel and display device

Abstract

The invention belongs to the field of display, and particularly relates to a display driving circuit, a display panel and a display device.The display driving circuit comprises a display light-emitting unit, a three-state gate, a light-emitting control unit and a data processing unit, the display light-emitting unit comprises a mini light-emitting diode and a first organic light-emitting diode, the mini light-emitting diode forms a blue sub-pixel, and the first organic light-emitting diode forms a second organic light-emitting diode; an enable signal end of the three-state gate is connected with a scanning line, an input end of the three-state gate is connected with a data line, and the light-emitting control unit is connected with an output end of the three-state gate, a cathode of the mini light-emitting diode and an anode of the first organic light-emitting diode. The anodes of the mini light-emitting diodes and the cathodes of the first organic light-emitting diodes are connected with the row control signal line, and the data processing unit is connected with the data line and the light-emitting control unit. The anodes and cathodes of the two display light-emitting units are connected and share one data line, the structure of the display panel is simplified, the signal line wiring area is reduced, the pixel aperture ratio is increased, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application belongs to the field of display, and specifically relates to a display driving circuit, a display panel and a display device. Background Art

[0002] Organic Light-Emitting Diode (OLED) display panels do not require backlight sources and have the advantages of thin thickness, high brightness, low power consumption, fast response, and wide color gamut. They are widely used in mobile phones, notebooks and other devices. In OLED display panels, the efficiency and life of blue sub-pixels are lower than those of red and green sub-pixels, which affects the display effect and life of the display panel.

[0003] Since mini light-emitting diodes (Mini / Micro LEDs) have the advantages of high brightness, wide color gamut, high efficiency and long life, some display panels use hybrid light-emitting devices, that is, red sub-pixels and green sub-pixels use organic light-emitting diodes, and blue sub-pixels use mini light-emitting diodes to improve the display effect and life of the display panel.

[0004] The display panel adopts a hybrid light-emitting device. Compared with the display panel adopting a single organic light-emitting diode or a mini light-emitting diode, the structure of the display panel is more complicated, and the wiring area of ​​signal lines such as scanning lines and data lines is larger, which is not conducive to improving the pixel aperture ratio and affects the display effect of the display panel. Summary of the invention

[0005] The purpose of the present application is to provide a display driving circuit, a display panel and a display device to reduce the wiring area of ​​signal lines such as scan lines and data lines, increase the pixel aperture ratio, and improve the display effect of the display panel.

[0006] In order to achieve the above object, the present application provides a display driving circuit, including a display light-emitting unit, wherein the display light-emitting unit includes a mini light-emitting diode and a first organic light-emitting diode, wherein the mini light-emitting diode forms a blue sub-pixel, and the first organic light-emitting diode forms a red sub-pixel or a green sub-pixel, and the display driving circuit further includes:

[0007] A tri-state gate, wherein an enable signal terminal of the tri-state gate is connected to a scan line, and an input terminal of the tri-state gate is connected to a data line;

[0008] A light emitting control unit, connected to the output end of the tri-state gate, the cathode of the mini light emitting diode and the anode of the first organic light emitting diode, the anode of the mini light emitting diode and the cathode of the first organic light emitting diode are connected to the row control signal line in a one-to-one correspondence, and the light emitting control unit is used to control the display light emitting unit to emit light;

[0009] A data processing unit is connected to the data line and the light emitting control unit.

[0010] Optionally, the light emitting control unit includes a first transistor, a first end of the first transistor is connected to the output end of the three-state gate, a second end of the first transistor is connected to the cathode of the mini light emitting diode and the anode of the first organic light emitting diode, and a control end of the first transistor is connected to the data processing unit.

[0011] Optionally, the light emitting control unit includes a second transistor, the control end of the second transistor is connected to the data processing unit, the first end of the second transistor is connected to the output end of the three-state gate, and the display light emitting unit also includes a second organic light emitting diode, the second end of the second transistor is connected to the anode of the second organic light emitting diode, and the cathode of the second organic light emitting diode is connected to the row control signal line.

[0012] Optionally, the first organic light emitting diode forms a green sub-pixel, and the second organic light emitting diode forms a red sub-pixel.

[0013] Optionally, both the first transistor and the second transistor are N-type thin film transistors, and the control end of the first transistor and the control end of the second transistor are respectively connected to two output ends of the data processing unit; or

[0014] One of the first transistor and the second transistor is an N-type thin film transistor and the other is a P-type thin film transistor, and a control end of the first transistor and a control end of the second transistor are connected to the same output end of the data processing unit.

[0015] Optionally, the data processing unit can generate a pulse width modulation signal according to the data voltage of the data line to control the turn-on time of the first transistor and the second transistor.

[0016] Optionally, the anode of the mini light-emitting diode, the cathode of the first organic light-emitting diode and the cathode of the second organic light-emitting diode are connected to the same row control signal line, and the row control signal line outputs a first voltage to control the mini light-emitting diode to emit light, or the row control signal line outputs a second voltage to control the first organic light-emitting diode or the second organic light-emitting diode to emit light.

[0017] Optionally, the display driving circuit further includes a voltage stabilizing unit, and the voltage stabilizing unit is connected to the output terminal of the tri-state gate and a ground terminal.

[0018] The present application also provides a display panel, comprising the display driving circuit.

[0019] The present application also provides a display device, comprising:

[0020] Driver module;

[0021] The display panel is connected to the driving module.

[0022] The display driving circuit, display panel and display device disclosed in the present application have the following beneficial effects:

[0023] In the present application, the display driving circuit includes a display light-emitting unit, a three-state gate, a light-emitting control unit and a data processing unit. The display light-emitting unit includes a mini light-emitting diode and a first organic light-emitting diode. The mini light-emitting diode forms a blue sub-pixel, and the first organic light-emitting diode forms a red sub-pixel or a green sub-pixel. The enable signal end of the three-state gate is connected to the scan line, and the input end of the three-state gate is connected to the data line. The light-emitting control unit is connected to the output end of the three-state gate, the cathode of the mini light-emitting diode and the anode of the first organic light-emitting diode. The anode of the mini light-emitting diode and the cathode of the first organic light-emitting diode are connected to the row control signal line, and the data processing unit is connected to the data line and the light-emitting control unit. The cathode of the mini light-emitting diode is connected to the anode of the first organic light-emitting diode, and the two display light-emitting units share a data line, which simplifies the structure of the display panel, reduces the wiring area of ​​the signal line, improves the pixel aperture ratio, and improves the display effect of the display panel.

[0024] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of the display driving circuit in the first embodiment of the present application.

[0028] Figure 2 1 is a timing diagram of driving signals of the display driving circuit in the first embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the display panel in the second embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the display device in the third embodiment of the present application.

[0031] Description of reference numerals:

[0032] 100, display driving circuit; 110, display light-emitting unit; 111, mini light-emitting diode; 112, first organic light-emitting diode; 113, second organic light-emitting diode; 120, tri-state gate; 130, light-emitting control unit; 131, first transistor; 132, second transistor; 140, data processing unit; 150, voltage stabilizing unit;

[0033] 201, scanning line; 202, data line; 203, row control signal line; 204, ground terminal;

[0034] 10. Display panel; 20. Driving module. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0036] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0037] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0038] Embodiment 1

[0039] See also Figure 1As shown, the display driving circuit 100 in this embodiment includes a display light-emitting unit 110, a tri-state gate 120, a light-emitting control unit 130 and a data processing unit 140. The display light-emitting unit 110 includes a mini light-emitting diode 111 and a first organic light-emitting diode 112, the mini light-emitting diode 111 forms a blue sub-pixel, and the first organic light-emitting diode 112 forms a red sub-pixel or a green sub-pixel.

[0040] The tri-state gate 120 includes an enable signal terminal, an input terminal, and an output terminal. The enable signal terminal of the tri-state gate 120 is connected to the scan line 201, the input terminal of the tri-state gate 120 is connected to the data line 202, and the output terminal of the tri-state gate 120 is connected to the light-emitting control unit 130. When the scan line 201 signal Scan is at a high level "1", the input and output of the tri-state gate 120 are valid, and the data voltage Vdata of the data line 202 is output to the light-emitting control unit 130 through the tri-state gate 120; when the scan line 201 signal is at a low level "0", the tri-state gate 120 is in a high impedance state.

[0041] The light emitting control unit 130 is connected to the output end of the three-state gate 120, the cathode of the mini light emitting diode 111, and the anode of the first organic light emitting diode 112. The anode of the mini light emitting diode 111 and the cathode of the first organic light emitting diode 112 are connected to the row control signal line 203 in a one-to-one correspondence. In other words, the mini light emitting diode 111 and the first organic light emitting diode 112 can be connected to different row control signal lines 203. The light emitting control unit 130 is used to control the three-state gate 120 and the display light emitting unit 110 to be turned on or off, thereby controlling the display light emitting unit 110 to emit light.

[0042] The data processing unit 140 is connected to the data line 202 and the light emitting control unit 130 . The data processing unit 140 controls the light emitting control unit 130 to operate according to the data voltage Vdata of the data line 202 , so as to control the display light emitting unit 110 to emit light.

[0043] It should be noted that the display light emitting unit 110 may include a mini light emitting diode 111 and a first organic light emitting diode 112, but is not limited thereto. The display light emitting unit 110 may also include a second organic light emitting diode 113. The first organic light emitting diode 112 and the second organic light emitting diode 113 form sub-pixels of different colors, which may be determined according to the specific situation. The second organic light emitting diode 113 and the mini light emitting diode 111 and the first organic light emitting diode 112 may be connected to different data lines 202.

[0044] See also Figure 1 and Figure 2 As shown, when the display driving circuit 100 works:

[0045] The scan line 201 outputs a high level signal, and the input and output of the tri-state gate 120 are valid, that is, a row of pixels is turned on;

[0046] The data processing unit 140 controls the light emitting control unit 130 to be turned on according to the data voltage Vdata of the data line 202. The data voltage Vdata of the data line 202 is written into the cathode of the mini light emitting diode 111 and the anode of the first organic light emitting diode 112 through the tri-state gate 120. The voltage of the row control signal line 203 connected to the first organic light emitting diode 112 is controlled to be less than the written data voltage Vdata, and the first organic light emitting diode 112 emits light. The voltage of the row control signal line 203 connected to the mini light emitting diode 111 is controlled to be greater than the written data voltage Vdata, and the mini light emitting diode 111 emits light.

[0047] The scan line 201 outputs a low level signal, and the tri-state gate 120 is in a high impedance state, that is, a row of pixels is turned off.

[0048] The display panel adopts a hybrid light-emitting device. Compared with the display panel adopting a single organic light-emitting diode or a mini light-emitting diode, the structure of the display panel is more complicated, and the wiring area of ​​signal lines such as scanning lines and data lines is larger, which is not conducive to improving the pixel aperture ratio and affects the display effect of the display panel.

[0049] In this embodiment, the display driving circuit 100 includes a display light-emitting unit 110, a three-state gate 120, a light-emitting control unit 130 and a data processing unit 140. The display light-emitting unit 110 includes a mini light-emitting diode 111 and a first organic light-emitting diode 112. The mini light-emitting diode 111 forms a blue sub-pixel, and the first organic light-emitting diode 112 forms a red sub-pixel or a green sub-pixel. The enable signal end of the three-state gate 120 is connected to the scan line 201, and the input end of the three-state gate 120 is connected to the data line 202. The light-emitting control unit 130 is connected to the output end of the three-state gate 120, the cathode of the mini light-emitting diode 111 and the anode of the first organic light-emitting diode 112. The anode of the mini light-emitting diode 111 and the cathode of the first organic light-emitting diode 112 are connected to the row control signal line 203. The data processing unit 140 is connected to the data line 202 and the light-emitting control unit 130. The cathode of the mini light emitting diode 111 is connected to the anode of the first organic light emitting diode 112, and the two display light emitting units 110 share a data line 202, which simplifies the structure of the display panel, reduces the wiring area of ​​the signal line, increases the pixel aperture ratio, and improves the display effect of the display panel.

[0050] In addition, the scan line 201 outputs a low level signal, and the tri-state gate 120 is in a high impedance state, that is, a row of pixels is turned off, which can avoid crosstalk caused by writing the data voltage Vdata into the non-selected row during row-by-row scanning.

[0051] In some embodiments, the light emitting control unit 130 includes a first transistor 131, a first end of the first transistor 131 is connected to the output end of the three-state gate 120, a second end of the first transistor 131 is connected to the cathode of the mini light emitting diode 111 and the anode of the first organic light emitting diode 112, and a control end of the first transistor 131 is connected to the data processing unit 140.

[0052] The second end of the first transistor 131 is connected to the cathode of the mini light emitting diode 111 and the anode of the first organic light emitting diode 112, that is, the writing of the data voltage Vdata of the two display light emitting units 110 is controlled by one transistor, and the mini light emitting diode 111 or the first organic light emitting diode 112 is controlled to emit light through the voltage of the row control signal line 203, and the structure of the light emitting control unit 130 is simpler.

[0053] It should be noted that the second end of the first transistor 131 is connected to the cathode of the mini light-emitting diode 111 and the anode of the first organic light-emitting diode 112, that is, the writing of the data voltage Vdata of the two display light-emitting units 110 is controlled by one transistor, but not limited to this. The writing of the data voltage Vdata of the two display light-emitting units 110 can also be controlled by two transistors respectively, depending on the specific situation.

[0054] In some embodiments, the light-emitting control unit 130 includes a second transistor 132, the control end of the second transistor 132 is connected to the data processing unit 140, the first end of the second transistor 132 is connected to the output end of the three-state gate 120, the display light-emitting unit 110 also includes a second organic light-emitting diode 113, the second end of the second transistor 132 is connected to the anode of the second organic light-emitting diode 113, and the cathode of the second organic light-emitting diode 113 is connected to the row control signal line 203.

[0055] The data processing unit 140 can control the first transistor 131 and the second transistor 132 to be turned on in time division, so that the second organic light emitting diode 113 and the first organic light emitting diode 112 do not emit light at the same time. In addition, the data processing unit 140 controls the first transistor 131 and the second transistor 132 to be turned on in time division, and the mini light emitting diode 111, the first organic light emitting diode 112 and the second organic light emitting diode 113 can share a data line 202, so as to further reduce the signal line wiring area and improve the pixel aperture ratio.

[0056] In some embodiments, the first organic light emitting diode 112 forms a green sub-pixel, and the second organic light emitting diode 113 forms a red sub-pixel.

[0057] When the display driving circuit 100 is working, the red sub-pixel, the green sub-pixel and the blue sub-pixel can emit light in different time periods. When the data voltage Vdata of the red sub-pixel is written, the data processing unit 140 controls the second transistor 132 to turn on, and the second organic light-emitting diode 113 emits light, that is, the red sub-pixel emits light; when the data voltage Vdata of the green sub-pixel is written, the data processing unit 140 controls the first transistor 131 to turn on, and controls the voltage of the row control signal line 203 connected to the first organic light-emitting diode 112 to be less than the written data voltage Vdata, and the first organic light-emitting diode 112 emits light, that is, the green sub-pixel emits light; when the data voltage Vdata of the blue sub-pixel is written, the data processing unit 140 controls the first transistor 131 to turn on, and controls the voltage of the row control signal line 203 connected to the mini light-emitting diode 111 to be greater than the written data voltage Vdata, and the mini light-emitting diode 111 emits light, that is, the blue sub-pixel emits light.

[0058] The mini light emitting diode 111 forms a blue sub-pixel, the first organic light emitting diode 112 forms a green sub-pixel, and the second organic light emitting diode 113 forms a red sub-pixel, thereby realizing RGB color display.

[0059] It should be noted that the first organic light emitting diode 112 forms a green sub-pixel and the second organic light emitting diode 113 forms a red sub-pixel, but it is not limited thereto. The first organic light emitting diode 112 can also form a red sub-pixel and the second organic light emitting diode 113 can also form a green sub-pixel, depending on the specific situation.

[0060] In addition, the display light-emitting unit 110 may include a mini light-emitting diode 111, a first organic light-emitting diode 112 and a second organic light-emitting diode 113. The mini light-emitting diode 111 forms a blue sub-pixel, the first organic light-emitting diode 112 forms a green sub-pixel, and the second organic light-emitting diode 113 forms a red sub-pixel to achieve RGB color display, but is not limited to this. The display light-emitting unit 110 may also include a third organic light-emitting diode, and the third organic light-emitting diode forms a white sub-pixel to achieve RGBW color display, which may depend on the specific situation.

[0061] In some embodiments, the first transistor 131 and the second transistor 132 are both N-type thin film transistors, and the control end of the first transistor 131 and the control end of the second transistor 132 are respectively connected to two output ends of the data processing unit 140 .

[0062] The first transistor 131 and the second transistor 132 are both N-type thin film transistors, that is, the display driving circuit 100 uses one type of transistor, and the structure of the display panel is simpler, which is beneficial to reducing the manufacturing cost of the display panel.

[0063] It should be noted that both the first transistor 131 and the second transistor 132 may be N-type thin film transistors, but not limited thereto, one of the first transistor 131 and the second transistor 132 may be an N-type thin film transistor and the other may be a P-type thin film transistor, depending on the specific situation. For example, the first transistor 131 is an N-type thin film transistor, and the second transistor 132 is a P-type thin film transistor.

[0064] One of the first transistor 131 and the second transistor 132 is an N-type thin film transistor and the other is a P-type thin film transistor. The control end of the first transistor 131 and the control end of the second transistor 132 are connected to the same output end of the data processing unit 140. The data processing unit 140 can output a control signal to control the two transistors. The structure of the data processing unit 140 is simpler.

[0065] In some embodiments, the data processing unit 140 can generate a pulse width modulation signal (PWM) according to the data voltage Vdata of the data line 202 to control the turn-on time of the first transistor 131 and the second transistor 132. When the first transistor 131 and the second transistor 132 are both N-type thin film transistors, the first transistor 131 and the second transistor 132 can be controlled by two pulse width modulation signals respectively; when one of the first transistor 131 and the second transistor 132 can be an N-type thin film transistor and the other can be a P-type thin film transistor, the first transistor 131 and the second transistor 132 can be controlled by the same pulse width modulation signal.

[0066] The data processing unit 140 generates a pulse width modulation signal to control the turn-on time of the first transistor 131 and the second transistor 132 according to the data voltage Vdata of the data line 202. The data processing unit 140 controls the light-emitting time of the red sub-pixel, the light-emitting time of the green sub-pixel, and the light-emitting time of the blue sub-pixel. During the light-emitting time of the green sub-pixel, the voltage of the row control signal line 203 connected to the first organic light-emitting diode 112 is controlled to be less than the written data voltage Vdata. During the light-emitting time of the blue sub-pixel, the voltage of the row control signal line 203 connected to the mini light-emitting diode 111 is controlled to be greater than the written data voltage Vdata, so that the light-emitting time of each sub-pixel can be controlled separately. By controlling the light-emitting time of each sub-pixel, the brightness of each sub-pixel can be controlled by pulse width modulation.

[0067] It should be noted that the brightness of each sub-pixel can be adjusted by pulse width modulation, but is not limited to this. The brightness of each sub-pixel can also be adjusted by controlling the current flowing through each sub-pixel by the data voltage Vdata, depending on the specific situation.

[0068] In some embodiments, the anode of the mini light emitting diode 111, the cathode of the first organic light emitting diode 112, and the cathode of the second organic light emitting diode 113 are connected to the same row control signal line 203. The row control signal line 203 signal Vp includes a first voltage or a second voltage, and the first voltage is greater than the second voltage. The row control signal line 203 outputs a first voltage to control the mini light emitting diode 111 to emit light, and the row control signal line 203 outputs a second voltage to control the first organic light emitting diode 112 or the second organic light emitting diode 113 to emit light.

[0069] The anode of the mini LED 111, the cathode of the first OLED 112 and the cathode of the second OLED 113 are connected to the same row of control signal lines 203, which can further simplify the structure of the display panel, reduce the signal line wiring area, and improve the pixel aperture ratio.

[0070] In some embodiments, the display driving circuit 100 further includes a voltage stabilizing unit 150 connected to the output terminal of the tri-state gate 120 and the ground terminal 204. For example, the voltage stabilizing unit 150 includes a voltage stabilizing diode connected to the output terminal of the tri-state gate 120 and the ground terminal 204.

[0071] The voltage stabilizing unit 150 is provided at the output end of the tri-state gate 120 to prevent a large voltage from being written into the subsequent transistor and the display light emitting unit 110 , thereby causing damage to the subsequent transistor and the display light emitting unit 110 .

[0072] It should be noted that the voltage stabilizing unit 150 may include a voltage stabilizing diode, but is not limited thereto. The voltage stabilizing unit 150 may also use a voltage-adjustable voltage stabilizing tube, such as a three-terminal voltage stabilizing tube, depending on the specific situation. When the voltage stabilizing unit 150 is a three-terminal voltage stabilizing tube, the input end of the three-terminal voltage stabilizing tube is connected to the first end of the three-state gate 120, the second end of the three-terminal voltage stabilizing tube is connected to the light emitting control unit 130, and the third end of the three-terminal voltage stabilizing tube is connected to the ground end 204.

[0073] In summary, when the display driving circuit 100 is working:

[0074] The scan line 201 outputs a high level signal, and the input and output of the tri-state gate 120 are valid, that is, a row of pixels is turned on;

[0075] The data processing unit 140 controls the second transistor 132 to turn on and the first transistor 131 to turn off according to the data voltage Vdata of the data line 202, and the row control signal line 203 outputs the second voltage to control the second organic light emitting diode 113 to emit light, that is, the red sub-pixel emits light, and the light emission time of the red sub-pixel is greater than or equal to 0;

[0076] The data processing unit 140 controls the first transistor 131 to turn on and the second transistor 132 to turn off according to the data voltage Vdata of the data line 202, and the row control signal line 203 outputs the second voltage to control the first organic light emitting diode 112 to emit light, that is, the green sub-pixel emits light, and the green sub-pixel emits light for a light-emitting time greater than or equal to 0;

[0077] The data processing unit 140 controls the first transistor 131 to turn on and the second transistor 132 to turn off according to the data voltage Vdata of the data line 202, and the row control signal line 203 outputs the first voltage to control the mini light emitting diode 111 to emit light, that is, the blue sub-pixel emits light, and the light emission time of the blue sub-pixel is greater than or equal to 0;

[0078] The scan line 201 outputs a low level signal, and the tri-state gate 120 is in a high impedance state, that is, a row of pixels is turned off.

[0079] Embodiment 2

[0080] The present application also provides a display panel 10, see Figure 3 As shown, the display panel 10 includes the display driving circuit 100, the scan line 201, the data line 202 and the row control signal line 203 disclosed in the first embodiment, the multiple rows of scan lines 201 are arranged at intervals, the multiple rows of row control signal lines 203 are arranged at intervals, the multiple columns of data lines 202 are arranged at intervals, the display driving circuit 100 is arranged at the intersection of the scan line 201 and the data line 202, and the display driving circuit 100 can correspond to the intersection of the scan line 201 and the data line 202 one by one. The multiple display driving circuits 100 are connected to the scan line 201 and the row control signal line 203 of the row, and are connected to the data line 202 of the column.

[0081] The display panel 10 includes a display driving circuit 100, which includes a display light-emitting unit 110, a three-state gate 120, a light-emitting control unit 130 and a data processing unit 140. The display light-emitting unit 110 includes a mini light-emitting diode 111 and a first organic light-emitting diode 112. The mini light-emitting diode 111 forms a blue sub-pixel, and the first organic light-emitting diode 112 forms a red sub-pixel or a green sub-pixel. The enable signal end of the three-state gate 120 is connected to the scan line 201, and the input end of the three-state gate 120 is connected to the data line 202. The light-emitting control unit 130 is connected to the output end of the three-state gate 120, the cathode of the mini light-emitting diode 111 and the anode of the first organic light-emitting diode 112. The anode of the mini light-emitting diode 111 and the cathode of the first organic light-emitting diode 112 are connected to the row control signal line 203. The data processing unit 140 is connected to the data line 202 and the light-emitting control unit 130. The cathode of the mini light-emitting diode 111 is connected to the anode of the first organic light-emitting diode 112, and the three display light-emitting units 110 share a data line 202 and a row control signal line 203, which simplifies the structure of the display panel 10, reduces the signal line wiring area, increases the pixel aperture ratio, and improves the display effect of the display panel 10.

[0082] Embodiment 3

[0083] The present application also provides a display device, see Figure 4 As shown, the display device includes a display panel 10 and a driving module 20, and the display panel 10 is connected to the driving module 20. The driving module 20 outputs a scanning signal and a data voltage to control the display panel 10 to display a picture.

[0084] The three display light-emitting units 110 in the display panel 10 share a data line 202 and a row control signal line 203, which simplifies the structure of the display panel 10, reduces the wiring area of ​​the signal line, increases the pixel aperture ratio, and improves the display effect of the display panel 10 and the display device.

[0085] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0086] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0088] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A display driving circuit comprising a display light-emitting unit, wherein the display light-emitting unit comprises a mini light-emitting diode and a first organic light-emitting diode, wherein the mini light-emitting diode forms a blue sub-pixel, and the first organic light-emitting diode forms a red sub-pixel or a green sub-pixel, characterized in that: The display driving circuit further includes: A tri-state gate, wherein an enable signal terminal of the tri-state gate is connected to a scan line, and an input terminal of the tri-state gate is connected to a data line; a light emitting control unit connected to the output end of the tri-state gate, the cathode of the mini light emitting diode, and the anode of the first organic light emitting diode, wherein the anode of the mini light emitting diode and the cathode of the first organic light emitting diode are connected to the row control signal line in a one-to-one correspondence, and the light emitting control unit is used to control the light emitting unit to emit light; A data processing unit is connected to the data line and the light emitting control unit.

2. The display driving circuit according to claim 1, wherein: The light emitting control unit includes a first transistor, a first end of the first transistor is connected to the output end of the three-state gate, a second end of the first transistor is connected to the cathode of the mini light emitting diode and the anode of the first organic light emitting diode, and a control end of the first transistor is connected to the data processing unit.

3. The display driving circuit according to claim 2, wherein: The light emitting control unit includes a second transistor, a control end of the second transistor is connected to the data processing unit, and a first end of the second transistor is connected to the output end of the three-state gate. The display light emitting unit also includes a second organic light emitting diode, a second end of the second transistor is connected to the anode of the second organic light emitting diode, and a cathode of the second organic light emitting diode is connected to the row control signal line.

4. The display driving circuit according to claim 3, wherein: The first organic light emitting diode forms a green sub-pixel, and the second organic light emitting diode forms a red sub-pixel.

5. The display driving circuit according to claim 3, wherein: The first transistor and the second transistor are both N-type thin film transistors, and the control end of the first transistor and the control end of the second transistor are respectively connected to the two output ends of the data processing unit; or One of the first transistor and the second transistor is an N-type thin film transistor and the other is a P-type thin film transistor. The control end of the first transistor and the control end of the second transistor are connected to the same output end of the data processing unit.

6. The display driving circuit according to claim 3, wherein: The data processing unit can generate a pulse width modulation signal according to the data voltage of the data line to control the turn-on time of the first transistor and the second transistor.

7. The display driving circuit according to claim 3, wherein: The anode of the mini light-emitting diode, the cathode of the first organic light-emitting diode, and the cathode of the second organic light-emitting diode are connected to the same row control signal line, and the row control signal line outputs a first voltage to control the mini light-emitting diode to emit light, or the row control signal line outputs a second voltage to control the first organic light-emitting diode or the second organic light-emitting diode to emit light.

8. The display driving circuit according to claim 3, wherein: The display driving circuit further includes a voltage stabilizing unit connected to the output terminal of the tri-state gate and a ground terminal.

9. A display panel, characterized in that: The display driving circuit comprises the display driving circuit according to any one of claims 1 to 8.

10. A display device, characterized in that: include: Driver module; The display panel as claimed in claim 9, connected to the driving module.

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