CN221056869U - Display driving circuit, device and notebook - Google Patents
Display driving circuit, device and notebook Download PDFInfo
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- CN221056869U CN221056869U CN202322693415.9U CN202322693415U CN221056869U CN 221056869 U CN221056869 U CN 221056869U CN 202322693415 U CN202322693415 U CN 202322693415U CN 221056869 U CN221056869 U CN 221056869U
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- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
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Abstract
The utility model discloses a display driving circuit, a device and a notebook, wherein the display driving circuit is applied to a notebook externally connected with terminal equipment and comprises the following components: a change-over switch, a display driving board and an external interface; the external interface is connected with external terminal equipment; the input end of the change-over switch is connected with the display driving plate, and the output end of the change-over switch is connected with the display of the notebook; when receiving a first driving signal input by a display driving plate, a change-over switch conducts connection between the display driving plate and the display; the display driving board drives the display when connected with the display. The present utility model is provided with a change-over switch and a separate display driving board which can individually drive a display to display screen contents of an external terminal device when connected to the display. Therefore, the present utility model can simply and inexpensively display the screen content of the terminal device.
Description
Technical Field
The present utility model relates to the field of display technologies, and in particular, to a display driving circuit, a display driving device, and a notebook.
Background
Nowadays, notebooks, mobile phones, tablet computers and the like are electronic products which are not separated from each other in office life. When a computer is applied, resources of terminal equipment such as a mobile phone or a tablet computer are sometimes required to be used for screen projection, but if special screen projection equipment is additionally added to project the content of the terminal equipment, the difficulty of equipment operation is increased, and meanwhile, the use cost is also increased.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present utility model and is not intended to represent an admission that the foregoing is prior art.
Disclosure of utility model
The utility model mainly aims to provide a display driving circuit, a display driving device and a notebook, and aims to solve the technical problems of complex screen-throwing operation and high cost of the traditional terminal equipment
In order to achieve the above object, the present utility model provides a display driving circuit, applied to a notebook connected to an external terminal device, comprising: a change-over switch, a display driving board and an external interface;
the external interface is used for connecting external terminal equipment;
The input end of the change-over switch is connected with the display driving plate, and the output end of the change-over switch is connected with the display of the notebook;
The change-over switch is used for conducting connection between the display driving plate and the display when receiving a first driving signal input by the display driving plate;
the display driving plate is used for driving the display when being connected with the display.
Optionally, the display driving circuit further includes: a main board;
The output end of the main board is connected with the input end of the change-over switch;
the change-over switch is used for conducting connection between the main board and the display when receiving a second driving signal input by the main board;
the main board is used for driving the display when being connected with the display.
Optionally, the diverter switch further includes: a first switch and a second switch;
The input end of the first switch is connected with the display driving plate, the input end of the second switch is connected with the main board, and the output end of the first switch and the output end of the second switch are connected with the display of the notebook.
Optionally, the display driving board is connected with a keyboard of the notebook;
The display driving board is also used for receiving the editing signal input by the keyboard and driving the display based on the editing signal so as to edit the screen content of the external terminal device.
Optionally, the display driving circuit further includes: a driving power supply;
The driving power supply is connected with the display driving plate and is used for supplying power to the display driving plate.
Optionally, the display driving circuit further includes: a switching unit;
the switch unit is connected with the driving power supply;
The switch unit is used for conducting connection between the driving power supply and the display driving board when receiving an externally input switching signal.
Optionally, the switching unit includes: the device comprises a mechanical switch, first to second resistors, first to second capacitors and a voltage stabilizing tube;
the first end of the mechanical switch is connected with the first end of the first resistor, and the second end of the first resistor is connected with the switching power supply;
The second end of the mechanical switch is respectively connected with the first end of the voltage stabilizing tube, the first end of the first capacitor and the first end of the second resistor, and the second end of the second resistor is respectively connected with the first end of the second capacitor and the driving power supply;
the third end to the seventh end of the mechanical switch, the second end of the voltage stabilizing tube and the second end of the first capacitor to the second capacitor are grounded.
Optionally, the driving power supply includes: a power driving chip and third to sixth resistors;
The enabling pin of the power supply driving chip is connected with the first end of the third resistor, and the second end of the third resistor is connected with the second end of the second resistor;
The input pin of the power supply driving chip is respectively connected with the first end of a fourth resistor and the first end of a fifth resistor, the second end of the fourth resistor is connected with an input power supply, and the second end of the fifth resistor is respectively connected with the output pin of the power supply driving chip and the display driving board;
The current control pin of the power supply driving chip is connected with the first end of the sixth resistor, and the second end of the sixth resistor and the grounding pin of the power supply driving chip are grounded.
In addition, to achieve the above object, the present utility model also proposes a display driving device including the display driving circuit described in any one of the above.
In addition, in order to achieve the above object, the present utility model also proposes a notebook comprising the display driving device described above.
The utility model discloses a display driving circuit, a device and a notebook, wherein the display driving circuit is applied to a notebook of external terminal equipment and comprises the following components: an external interface, a display driving board and a change-over switch; an external interface for connecting an external terminal device; the input end of the change-over switch is connected with the display driving plate, and the output end of the change-over switch is connected with the display of the notebook; the switching switch is used for conducting connection between the display driving plate and the display when receiving a first driving signal input by the display driving plate; and the display driving plate is used for driving the display when being connected with the display. The present utility model is provided with a switch and a separate display driving board which can individually drive a display to display screen contents of an external terminal device when the switch is connected to the display. In addition, the display driving board is separated from the original main board of the notebook computer, so that the display driving board can work independently when the display driving board drives the display, and the connection between the main board of the notebook computer and the display is disconnected to reduce the energy consumption of the notebook computer.
Drawings
FIG. 1 is a first functional block diagram of a first embodiment of a display driving circuit according to an embodiment of the present utility model;
FIG. 2 is a second functional block diagram of a first embodiment of a display driving circuit according to an embodiment of the present utility model;
Fig. 3 is a circuit diagram of a switching unit in a first embodiment of a display driving circuit according to an embodiment of the present utility model;
FIG. 4 is a circuit diagram of a driving power supply in a first embodiment of a display driving circuit according to an embodiment of the present utility model;
FIG. 5 is a first functional block diagram of a second embodiment of a display driving circuit according to an embodiment of the present utility model;
fig. 6 is a second functional block diagram of a second embodiment of a display driving circuit according to an embodiment of the present utility model.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| R1～R6 | First to sixth resistors | C1～C2 | First to second capacitors |
| ZD | Voltage stabilizing tube | SW | Mechanical switch |
| V1 | Switching power supply | Vcc | Input power supply |
| U1 | Power supply driving chip | IN | Input pin |
| EN | Enable pin | OUT | Output pin |
| ISET | Current control pin | GND | Ground pin, ground |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, all embodiments obtained by persons skilled in the art based on the embodiments in the present utility model without making creative efforts, belong to the protection scope of the present utility model.
It should be noted that the descriptions of "first," "second," etc. in the embodiments of the present utility model are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying any particular order of magnitude of the indicated technical features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the present utility model.
Referring to fig. 1, fig. 1 is a first functional block diagram of a first embodiment of a display driving circuit according to an embodiment of the present utility model.
As shown in fig. 1, the display driving circuit in this embodiment is applied to a notebook 1 of an external terminal device, and includes: a change-over switch 20, a display driving board 30, and an external interface 40;
The external interface 40 is used for connecting with the external terminal device 2;
The input end of the change-over switch 20 is connected with the display driving board 30, and the output end of the change-over switch 20 is connected with the display 10 of the notebook 1;
The switch 20 is configured to conduct a connection between the display driving board 30 and the display 10 when receiving a first driving signal input by the display driving board 30;
The display driving board 30 is configured to drive the display 10 when connected to the display 10, so that the display 10 can display the content of the external terminal device 2 connected to the external interface 40.
It should be noted that, the external terminal device 2 may be a computing service device having functions of data processing, network communication, and program running, for example, a mobile phone, a television, a tablet computer, or other electronic devices capable of implementing the same or similar functions.
It should be understood that the display driving board 30 may be a driving board integrated in the notebook 1 and dedicated for driving the notebook display 10, and the first driving signal may be an electrical signal input by the display driving board 30, and the switch 20 may connect the display driving board 30 to the display 10 of the notebook 1 after receiving the first driving signal. After the display driving board 30 is connected with the display 10 of the notebook 1, the notebook 1 can display the screen content of the external terminal device 2 connected with the display driving board through the external interface 40, so that the screen projection of the content of the external terminal device 2 is realized. The external interface 40 and the external terminal device 2 may be connected through a USB data line, where the Type of the USB data line includes, but is not limited to, standard USB, mini USB, micro USB, type-C, and the like. The display is the display of the notebook 1.
It will be appreciated that, when the notebook 1 displays the screen content of the external terminal device 2, only the display driving board 30 may be operated to drive the display 10 to display the screen content or the working interface of the external terminal device 2, and the main board 50 may not be operated, so as to reduce the energy consumption of the notebook 1.
Therefore, further, as shown in fig. 2, fig. 2 is a second functional block diagram of a first embodiment of a display driving circuit according to an embodiment of the present utility model, where the display driving circuit further includes: a main board 50;
The output end of the main board 50 is connected with the input end of the change-over switch 20;
The switch 20 is configured to conduct connection between the main board 50 and the display 10 when receiving a second driving signal input by the main board 50;
The main board 50 is configured to drive the display 10 when connected to the display 10, so that the display 10 can display the contents of the notebook 1.
Note that, the second driving signal may be an electrical signal input from the main board 50, and in general, when the notebook computer 1 is powered on, the switch 20 receives the second driving signal sent from the main board 50, so that the main board 50 is connected to the display 10, and meanwhile, the display driving board 30 is disconnected from the display 10 of the notebook computer 1, so that the notebook computer 1 only starts the driving of the main board 50 to complete the display of the notebook computer display 10, and corresponds to a task instruction of an operator. The change-over switch 20 correspondingly conducts the connection between the display driving board 30 and the display 10 only when receiving the first driving signal sent by the display driving board 30, and automatically cuts off the connection between the main board 50 and the display 10. It will be appreciated that when the main board 50 drives the display 10, the external terminal device 2 is connected to the notebook 1 through the external interface 40 only for data transmission, charging, etc., and cannot display the content of the external terminal device 2 through the display 10.
Further, as shown in fig. 2, in this embodiment, the display driving circuit further includes: a driving power supply 60;
The driving power supply 60 is connected to the display driving board 30, and is used for supplying power to the display driving board 30.
It will be appreciated that in this embodiment, the first driving signal input by the display driving board 30 may be input through the external mechanical switch SW. When the external mechanical switch SW is turned on, the display driving board 30 may turn on the driving power supply 60, so that the display driving board 30 is started and sends a first driving signal to the switch 20, so that the switch 20 turns on the connection between the display driving board 30 and the display 10; when the external mechanical switch SW is turned off, the display driving board 30 is not powered, and therefore, the display driving board 30 cannot be started, and when the switch 20 cannot receive the first driving signal, the connection between the main board 50 and the display 10 is correspondingly turned on.
Further, as shown in fig. 2, in this embodiment, the display driving circuit further includes: a switching unit 70;
The switching unit 70 is connected to the driving power source 60;
The switching unit 70 is configured to conduct connection between the driving power source 60 and the display driving board 30 when receiving a switching signal inputted from the outside.
The switching unit 70 includes: a mechanical switch SW, first to second resistors R2, first to second capacitors C2, and a regulator tube ZD;
The first end of the mechanical switch SW is connected with the first end of the first resistor R1, and the second end of the first resistor R1 is connected with the switching power supply V1;
The second end of the mechanical switch SW is respectively connected with the first end of the voltage stabilizing tube ZD, the first end of the first capacitor C1 and the first end of the second resistor R2, and the second end of the second resistor R2 is respectively connected with the first end of the second capacitor C2 and the driving power supply 60;
The third to seventh ends of the mechanical switch SW, the second end of the regulator tube ZD and the second ends of the first to second capacitors C2 are all grounded.
The switching signal may be a signal input when the mechanical switch SW is turned on. For easy understanding, but not limiting the present embodiment, taking fig. 3 as an example for illustration, fig. 3 is a circuit diagram of a switch unit 70 in a first embodiment of a driving circuit of a display according to an embodiment of the present utility model, as shown in fig. 3, when a mechanical switch SW is not turned on, the mechanical switch SW may be connected to a first end and a second end, and the mechanical switch SW is not grounded, at this time, the second end of the mechanical switch SW does not output a signal, that is, the switch unit 70 cannot send a signal to a connected module (the connected module of the switch unit 70 in the present embodiment may be the driving power supply 60); when the mechanical switch SW is switched to the position corresponding to the display driving, the mechanical switch SW is turned on, and at this time, the mechanical switch SW may connect the second end and the third end, and the mechanical switch SW is grounded, so that the second end of the mechanical switch SW outputs a signal, that is, the switch unit 70 sends a signal to the connection module (the connection module of the switch unit 70 may be the driving power source 60 in this embodiment), and the signal sent to the driving power source 60 by the switch unit 70 can conduct the connection between the driving power source 60 and the display driving board 30.
It can be understood that the mechanical switch SW is a toggle switch, and the interface definitions of the first end to the seventh end of the mechanical switch SW refer to the interface definition of the toggle switch, which are all in the prior art and are not described herein.
Accordingly, the driving power supply 60 includes: a power supply driving chip U1 and third to sixth resistors R6;
The enabling pin EN of the power driving chip U1 is connected with the first end of a third resistor R3, and the second end of the third resistor R3 is connected with the second end of the second resistor R2;
The input pin IN of the power driving chip U1 is connected to the first end of the fourth resistor R4 and the first end of the fifth resistor R5, the second end of the fourth resistor R4 is connected to the input power Vcc, and the second end of the fifth resistor 5R is connected to the output pin OUT of the power driving chip U1 and the display driving board 30;
The current control pin ISET of the power driving chip U1 is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 and the ground pin GND of the power driving chip U1 are grounded.
For easy understanding, taking fig. 4 as an example for illustration, fig. 4 is a circuit diagram of a driving power supply 60 in a first embodiment of a driving circuit of a display according to an embodiment of the present utility model, and as shown in fig. 4, a third resistor R3 is connected to a second resistor R2 and a second capacitor C2 in a switching unit 70. When the power driving chip U1 receives the signal sent by the switch unit 70, the enable pin EN receives the signal and converts the signal into a high level signal, the power driving chip U1 can supply power to the display driving board 30 through the output pin OUT, and the specific power supply voltage is determined by the input power Vcc received by the input pin IN, the resistance of the fourth resistor R4, and the resistance of the fifth resistor R5. After receiving the power supply voltage provided by the driving power supply 60, the display driving board 30 correspondingly sends a first driving signal to the switch 20, so that the switch 20 correspondingly conducts the connection loop between the display driving board 30 and the display 10.
In a specific implementation, as shown in fig. 2, when the notebook 1 is powered on, the switch 20 receives the second driving signal sent by the main board 50 to connect the main board 50 and the display 10, and meanwhile, the display driving board 30 is disconnected from the display 10 of the notebook 1, so that the notebook 1 only starts the driving of the main board 50 to complete the display of the notebook display 10, and corresponds to the task instruction of the operator. When the switching unit 70 receives the switching signal from the external input, it sends a signal to the driving power source 60, so that the power driving chip U1 in the driving power source 60 starts to operate and supplies power to the display driving board 30. After receiving the power supply voltage, the display driving board 30 sends a first driving signal to the change-over switch 20, and the change-over switch 20 correspondingly conducts the connection between the display driving board 30 and the display 10 and automatically cuts off the connection with the main board 50, so that the display 10 of the notebook 1 displays the screen content of the external terminal device 2 connected with the driving board through the external interface 40.
The embodiment discloses a display driving circuit, this display driving circuit is applied to the notebook of external terminal equipment, includes: an external interface, a display driving board and a change-over switch; an external interface for connecting an external terminal device; the input end of the switch is connected with the display driving plate of the notebook, and the output end of the switch is connected with the display of the notebook; the switching switch is used for conducting connection between the display driving plate and the display when receiving a first driving signal input by the display driving plate; and the display driving plate is used for driving the display when being connected with the display. The present embodiment is configured with a switch and a separate display driving board that can individually drive a display to display screen contents of an external terminal device when the switch connects it to the display. In addition, the display driving board is separated from the original main board of the notebook computer, so that the display driving board can work independently when the display driving board drives the display, and the connection between the main board of the notebook computer and the display is disconnected to reduce the energy consumption of the notebook computer.
Referring to fig. 5, fig. 5 is a first functional block diagram of a second embodiment of a display driving circuit according to an embodiment of the present utility model.
Based on the first embodiment described above, a second embodiment of the display driving circuit of the present utility model is proposed.
It is understood that the above-described notebook 1 can be used not only for screen contents of the screen-casting external terminal device 2 but also for editing information through the notebook keyboard 80 and inputting the edited information into the external terminal device 2.
Further, in the present embodiment, the display driving board 30 is connected to the keyboard 80 of the notebook 1;
the display driving board 30 is further configured to receive an editing signal inputted from the keyboard 80 and drive the display 10 based on the editing signal to edit the screen content of the external terminal device 2.
The above editing signal is a signal input from the keyboard 80 attached to or connected with the notebook 1, and the editing signal may be transmitted to the display driving board 30, and the display driving board 30 may drive the display 10 of the notebook 1 based on the editing signal and simultaneously transmit the content on the display 10 to the external terminal device 2, so that the screen content of the external terminal device 2 may be edited. That is, at this time, the display 10 of the notebook 1 and the keyboard 80 are operated, information can be entered on the external terminal device 2 through the keyboard 80, and contents displayed on the screen of the external terminal device 2 can be edited through the notebook 1.
It is understood that the switch 20 may be a switch with a single-pole or a double-pole, i.e. the switch 20 may be composed of two single-pole and single-throw switches.
Therefore, in this embodiment, the diverter switch 20 further includes: a first switch 201 and a second switch 202;
The input end of the first switch 201 is connected with the display driving board 30, the input end of the second switch 202 is connected with the main board 50, and the output end of the first switch 201 and the output end of the second switch 202 are connected with the display 10 of the notebook 1;
It should be noted that, when the switch 20 is composed of two switches, the two switches are connected correspondingly with different driving connections, for convenience of understanding, fig. 6 is taken as an example for illustration, and fig. 6 is a second functional block diagram of a second embodiment of the display driving circuit according to the embodiment of the present utility model. As shown in fig. 6, the first switch 201 may be connected to the display driving board 30 and the display 10, respectively, and the second switch 202 may be connected to the main board 50 and the display 10, respectively. When the first switch 201 is closed, the display driving board 30 is connected to the display 10, and the notebook 1 can be used for displaying the screen content of the external terminal device 2; when the second switch 202 is closed, the main board 50 is connected to the display 10, and the notebook 1 can start the driving of the main board 50 to complete the display of the notebook display 10, and correspondingly complete the task instruction of the operator. It will be appreciated that when the second switch 202 is closed, i.e. the main board 50 is used to drive the display 10, the external terminal device 2 is connected to the notebook 1 via the external interface 40 only for data transmission, charging, etc.
It should be understood that the open-close state of the first switch 201 is mutually exclusive to the open-close state of the second switch 202, that is, the first switch 201 is closed, and the second switch 202 must be opened; the second switch 202 is closed and the first switch 201 must be opened.
In this embodiment, the diverter switch further includes: a first switch and a second switch; the input end of the first switch is connected with the display driving plate, the input end of the second switch is connected with the main board, and the output end of the first switch and the output end of the second switch are connected with a display of the notebook. In addition, a display driving plate is connected with a keyboard of the notebook; and the display driving plate is also used for receiving the editing signal input by the keyboard and driving the display based on the editing signal so as to edit the screen content of the external terminal equipment. According to the notebook computer, the display and the display driving plate can be connected to enter a screen-throwing working mode through the first switch, and the main board and the display can be connected to enter a normal working mode through the second switch, so that switching of different working modes of the notebook computer can be achieved through the switch according to requirements. In addition, the embodiment can edit the content of the external terminal equipment through the keyboard, so that the embodiment can realize various application functions and expand application scenes.
In order to achieve the above object, the present utility model also provides a display driving device, which includes the display driving circuit as described above. The specific structure of the display driving circuit refers to the above embodiments, and since the display driving device adopts all the technical solutions of all the embodiments, at least the display driving circuit has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
In order to achieve the above object, the present utility model also proposes a notebook comprising a display driving device as described above. The specific structure of the display driving device refers to the above embodiments, and since the notebook computer adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A display driving circuit is characterized in that the display driving circuit is applied to a notebook of external terminal equipment, and comprises: a change-over switch, a display driving board and an external interface;
the external interface is used for connecting external terminal equipment;
The input end of the change-over switch is connected with the display driving plate, and the output end of the change-over switch is connected with the display of the notebook;
The change-over switch is used for conducting connection between the display driving plate and the display when receiving a first driving signal input by the display driving plate;
the display driving plate is used for driving the display when being connected with the display.
2. The display driver circuit of claim 1, wherein the display driver circuit further comprises: a main board;
The output end of the main board is connected with the input end of the change-over switch;
the change-over switch is used for conducting connection between the main board and the display when receiving a second driving signal input by the main board;
the main board is used for driving the display when being connected with the display.
3. The display driver circuit of claim 2, wherein the change-over switch further comprises: a first switch and a second switch;
The input end of the first switch is connected with the display driving plate, the input end of the second switch is connected with the main board, and the output end of the first switch and the output end of the second switch are connected with the display of the notebook.
4. The display driver circuit of claim 3, wherein the display driver board is connected to a keyboard of the notebook;
The display driving board is also used for receiving the editing signal input by the keyboard and driving the display based on the editing signal so as to edit the screen content of the external terminal device.
5. The display driver circuit of any one of claims 1-4, wherein the display driver circuit further comprises: a driving power supply;
The driving power supply is connected with the display driving plate and is used for supplying power to the display driving plate.
6. The display driver circuit of claim 5, wherein the display driver circuit further comprises: a switching unit;
the switch unit is connected with the driving power supply;
The switch unit is used for conducting connection between the driving power supply and the display driving board when receiving an externally input switching signal.
7. The display driving circuit according to claim 6, wherein the switching unit includes: the device comprises a mechanical switch, first to second resistors, first to second capacitors and a voltage stabilizing tube;
the first end of the mechanical switch is connected with the first end of the first resistor, and the second end of the first resistor is connected with the switching power supply;
The second end of the mechanical switch is respectively connected with the first end of the voltage stabilizing tube, the first end of the first capacitor and the first end of the second resistor, and the second end of the second resistor is respectively connected with the first end of the second capacitor and the driving power supply;
the third end to the seventh end of the mechanical switch, the second end of the voltage stabilizing tube and the second end of the first capacitor to the second capacitor are grounded.
8. The display driver circuit of claim 7, wherein the driving power supply comprises: a power driving chip and third to sixth resistors;
The enabling pin of the power supply driving chip is connected with the first end of the third resistor, and the second end of the third resistor is connected with the second end of the second resistor;
The input pin of the power supply driving chip is respectively connected with the first end of a fourth resistor and the first end of a fifth resistor, the second end of the fourth resistor is connected with an input power supply, and the second end of the fifth resistor is respectively connected with the output pin of the power supply driving chip and the display driving board;
The current control pin of the power supply driving chip is connected with the first end of the sixth resistor, and the second end of the sixth resistor and the grounding pin of the power supply driving chip are grounded.
9. A display driving device comprising the display driving circuit of any one of claims 1-8.
10. A notebook comprising the display driving apparatus of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322693415.9U CN221056869U (en) | 2023-10-08 | 2023-10-08 | Display driving circuit, device and notebook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322693415.9U CN221056869U (en) | 2023-10-08 | 2023-10-08 | Display driving circuit, device and notebook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221056869U true CN221056869U (en) | 2024-05-31 |
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ID=91223588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322693415.9U Active CN221056869U (en) | 2023-10-08 | 2023-10-08 | Display driving circuit, device and notebook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221056869U (en) |
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2023
- 2023-10-08 CN CN202322693415.9U patent/CN221056869U/en active Active
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