CN118053374A - Display assembly, display device and display driving method - Google Patents
Display assembly, display device and display driving method Download PDFInfo
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Abstract
The invention provides a display assembly, a display device and a display driving method. The display assembly comprises a display panel and a display driving chip for driving the display panel, wherein the display driving chip is electrically connected with the power supply module; the display assembly further comprises a first voltage signal line and a second voltage signal line which are connected with the power supply module, wherein the first voltage signal line is used for providing a first voltage signal, the second voltage signal line is used for providing a second voltage signal, and the first voltage signal line and the second voltage signal line are used as reference voltages of a grid driving circuit of the display panel. According to the embodiment of the invention, the power supply module is used for directly providing the first voltage signal and the second voltage signal which are used as the reference voltage of the grid driving circuit, so that energy loss in the voltage conversion process can be reduced compared with the reference voltage generated by voltage conversion in the related art, and the cruising of the display device can be improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display assembly, a display device, and a display driving method.
Background
With development and application of display technology, electronic devices such as mobile phones and tablet computers have become important tools for users, the electronic devices are usually powered by built-in batteries, a display panel of the electronic devices is one of the most main power consumption components, and under the condition that the battery power is constant, how to improve the power supply efficiency of the display panel, reduce the energy consumption of the display panel, and become one of the important problems for improving the endurance of the electronic devices.
Disclosure of Invention
The embodiment of the invention provides a display assembly, a display device and a display driving method, which are used for improving the endurance of electronic equipment.
To solve the above problems, the present invention is achieved as follows:
In a first aspect, an embodiment of the present invention provides a display assembly, including a display panel, and a display driving chip for driving the display panel, where the display driving chip is electrically connected to the power module;
the display assembly further comprises a first voltage signal line and a second voltage signal line which are connected with the power supply module, wherein the first voltage signal line is used for providing a first voltage signal, the second voltage signal line is used for providing a second voltage signal, and the first voltage signal line and the second voltage signal line are used as reference voltages of a grid driving circuit of the display panel.
In some embodiments, the first voltage signal line and the second voltage signal line are both connected to the display driving chip, the reference voltage provided by the first voltage signal is an on voltage of the gate driving circuit, and the reference voltage provided by the second voltage signal is an off voltage of the gate driving circuit.
In some embodiments, the display driving chip is further configured to compensate the on voltage to generate an initial on voltage preset by the gate driving circuit, and compensate the off voltage to generate an initial off voltage preset by the gate driving circuit.
In some embodiments, the first voltage signal line and the second voltage signal line are connected to the display panel or the display driving chip;
The reference voltage provided by the first voltage signal is an initial start voltage preset by the gate driving circuit, and the reference voltage provided by the second voltage signal is an initial turn-off voltage preset by the gate driving circuit.
In some embodiments, the display driving chip is further connected to a reference voltage control signal terminal, and the reference voltage control signal terminal is configured to provide a reference voltage control signal for controlling the output or the off of the first voltage signal and the second voltage signal to the display driving chip.
In a second aspect, an embodiment of the present invention provides a display device, including a power module and a display assembly according to any one of the first aspect.
In a third aspect, an embodiment of the present invention provides a display driving method, which is applied to the display device in the second aspect, and the method includes:
The power supply module provides a first voltage signal through a first voltage signal line and provides a second voltage signal through a second voltage signal line;
the display panel acquires the first voltage signal and the second voltage signal as reference voltages of a gate driving circuit.
In some embodiments, the reference voltage provided by the first voltage signal is a turn-on voltage of the gate driving circuit, and the reference voltage provided by the second voltage signal is a turn-off voltage of the gate driving circuit;
The method further comprises the steps of:
The display driving chip compensates the first voltage signal to generate an initial starting voltage preset by the grid driving circuit, and compensates the first voltage signal to generate an initial closing voltage preset by the grid driving circuit;
and providing the initial on voltage and the initial off voltage to the display panel through the display driving chip.
In some embodiments, the reference voltage provided by the first voltage signal is an initial turn-on voltage preset by the gate driving circuit, and the reference voltage provided by the second voltage signal is an initial turn-off voltage preset by the gate driving circuit;
The method comprises the following steps:
and providing the initial on voltage and the initial off voltage for the display panel through the power supply module.
In some of these embodiments, the method further comprises:
Providing a reference voltage control signal through a reference voltage control signal terminal;
The display panel controls the first voltage signal and the second voltage signal to be output or turned off according to the reference voltage control signal.
According to the embodiment of the invention, the power supply module is used for directly providing the first voltage signal and the second voltage signal serving as the reference voltage of the grid driving circuit for the display driving chip or the display panel, so that energy loss in the voltage conversion process of the display driving chip can be reduced relative to the generation of the reference voltage through voltage conversion in the related art, and the cruising of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a display assembly according to an embodiment of the present invention;
FIG. 2 is a diagram of a related art DDIC power signal;
FIG. 3 is a schematic diagram of a related art DDIC internal voltage conversion tree;
FIG. 4 is a schematic diagram of a DDIC power signal in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of a DDIC internal voltage conversion tree according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a display assembly according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a DDIC power signal in accordance with another embodiment of the present invention;
Fig. 8 is a schematic diagram of a DDIC internal voltage conversion tree in accordance with a further embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," and the like in embodiments of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the present application means at least one of the connected objects, such as a and/or B and/or C, means 7 cases including a alone a, B alone, C alone, and both a and B, both B and C, both a and C, and both A, B and C.
The embodiment of the invention provides a display assembly, a display device and a display driving method.
As shown in fig. 1, in one embodiment, the display assembly includes a display panel 101, a DDIC (DISPLAY DRIVER IC, display-driving chip) 102 for driving the display panel 101.
The DDIC102 is electrically connected to the power supply module 103 to supply power to the DDIC102 through the power supply module 103, and further, to supply a desired display driving signal to the display panel 101 through the DDIC 102.
Referring to fig. 2 and 3, fig. 2 is a schematic diagram of power supply signals of the DDIC102 in the related art, in an exemplary embodiment, the DDIC102 inputs a first external power supply VDDI, an analog positive power supply signal AVDD, a driver analog power supply VCI, and a digital voltage signal DVDD, and the DDIC102 is further connected to MIPI and I 2 C data interfaces to obtain various enable control signals EN, for example, an enable signal avdd_en, a light emission control signal el_en, a light emission termination signal el_off, a shut-OFF signal avdd_off for controlling the disconnection of the analog positive power supply signal, and the DDIC102 may be connected to signal lines such as a power supply positive electrode ELVDD and a power supply negative electrode ELVSS.
As shown in fig. 3, when in use, DDIC102 generates power supply signals such as a high voltage reference signal VGH, a low voltage reference signal VGL, an initial on voltage VGHO, an initial off voltage VGLO, a minimum voltage VGSP of the gamma module, a reference voltage VGMP of the gamma module, a power supply input voltage Vint, and the like based on the signals. The above process may refer to the related art specifically, and is not further defined and described in this embodiment.
In the above process, high energy loss is caused due to the fact that the high-low conversion of the voltage is involved.
As shown in fig. 1, in the technical solution of this embodiment, the display assembly further includes a first voltage signal line and a second voltage signal line.
The first voltage signal line is used for providing a first voltage signal, the second voltage signal line is used for providing a second voltage signal, and the first voltage signal and the second voltage signal are used as reference voltages of the gate driving circuit GOA of the display panel 101.
In one embodiment, the display driving method includes:
the power supply module provides a first voltage signal through the first voltage signal and provides a second voltage signal through the second voltage signal;
the display panel acquires the first voltage signal and the second voltage signal as reference voltages of a gate driving circuit.
It should be understood that in the related art, the power module 103 supplies power to the DDIC102, and the DDIC102 further performs level conversion according to different signals required to be provided to the display panel to generate corresponding signals, generally, the signal with the highest potential is the high voltage reference signal VGH, and the energy loss in the potential boosting conversion process is high.
Referring to fig. 2 and fig. 4, compared with the prior art, in the technical solution of the present embodiment, since one path of reference voltage is directly provided by the power module 103 alone, as shown in fig. 5, the technical solution of the present embodiment does not need to generate the reference voltage by performing potential conversion through the DDIC, and reduces the voltage conversion process of the reference voltage in the DDIC102, thereby effectively improving the energy utilization rate and the cruising ability of the electronic device.
According to the embodiment of the invention, the power supply module is used for directly providing the first voltage signal and the second voltage signal which are used as the reference voltage of the grid driving circuit, so that energy loss in the voltage conversion process of the DDIC can be reduced compared with the reference voltage generated by voltage conversion in the related art, and the continuous voyage of the display device can be improved. The power supply control of the two display screens through the power supply control chip can be realized, and the cost is saved.
The embodiment of the invention also provides a display device, which comprises the power module 103 and the display assembly of any one of the embodiments.
The display device of this embodiment includes all technical solutions of the display component embodiments, so at least all technical effects thereof can be achieved, and details thereof are not repeated here.
In some embodiments, referring to fig. 2, fig. 4 and fig. 5, the reference voltage provided by the first voltage signal is the turn-on voltage VGH of the gate driving circuit, and the reference voltage provided by the second voltage signal is the turn-off voltage VGL of the gate driving circuit.
As shown in fig. 1, in some embodiments, the first voltage signal line and the second voltage signal line are both connected to the DDIC102, the reference voltage provided by the first voltage signal is the on voltage of the gate driving circuit, and the reference voltage provided by the second voltage signal is the off voltage of the gate driving circuit.
Further, DDIC102 is further configured to compensate for the on voltage VGH, generate an initial on voltage VGHO preset by the gate driving circuit, and compensate for the off voltage VGL, generate an initial off voltage VGLO preset by the gate driving circuit.
The method further comprises the steps of:
compensating the first voltage signal through the DDIC to generate an initial starting voltage VGHO preset by a gate driving circuit, and compensating the first voltage signal conversion to generate an initial closing voltage VGLO preset by the gate driving circuit;
The initial turn-on voltage VGHO and the initial turn-off voltage VGLO are supplied to the display panel through the DDIC.
In the technical solution of this embodiment, the power module 102 directly provides the first voltage signal and the second voltage signal, and the DDIC102 compensates the first voltage signal and the second voltage signal as required to generate the initial on voltage VGHO and the initial off voltage VGLO, so that the amplitude of voltage conversion can be reduced, thereby helping to reduce energy loss in the voltage conversion process. It should be understood that the required compensation method may be performed with respect to factors such as temperature, aging degree of the display panel, etc., and the specific compensation method itself may refer to the related art, and the compensation method is not further limited and described in this embodiment.
In some of these embodiments, the method further comprises:
Providing a reference voltage control signal to the DDIC through a reference voltage control signal terminal;
the DDIC controls the first voltage signal and the second voltage signal to be output or turned off according to the reference voltage control signal.
In another embodiment, the power module 102 directly provides the on voltage VGH and the off voltage VGL of the gate driving circuit as reference voltages, and at this time, as shown in fig. 1, the power module 102 may be connected to the DDIC102 to provide the first voltage signal and the second voltage signal to the display panel through the DDIC102, and as shown in fig. 6, the power module 102 may also be directly connected to the display panel 101 to directly provide the first voltage signal and the second voltage signal to the display panel 101.
Referring to fig. 4 and 8, in the embodiment shown in fig. 8, the reference voltage provided by the first voltage signal is the initial on voltage VGHO preset by the gate driving circuit, and the reference voltage provided by the second voltage signal is the initial off voltage VGLO preset by the gate driving circuit, which are different from the on voltage VGH and the off voltage VGL provided by the gate driving circuit in the embodiment shown in fig. 4.
In this embodiment, the reference signal is not required to be compensated by the DDIC102, and the power module 102 directly provides the initial on voltage VGHO and the initial off voltage VGLO preset by the gate driving circuit to the display panel 101, as shown in fig. 8, in this embodiment, the voltage conversion in the DDIC102 is not required any more, so that the reference signal required by the display panel 101 is provided, and the signal conversion process of the DDIC102 can be reduced, so as to reduce the energy consumption.
In some embodiments, the display panel 101 is further connected to a reference voltage control signal terminal for providing a reference voltage control signal for controlling the output or the off of the first voltage signal and the second voltage signal. The method further comprises the steps of:
In some embodiments, the method further comprises:
Providing a reference voltage control signal through a reference voltage control signal terminal;
The display panel controls the first voltage signal and the second voltage signal to be output or turned off according to the reference voltage control signal.
Referring to fig. 4, 5, 7 and 8, in the present embodiment, the DDIC102 is further connected to reference voltage control signal terminals VGH/vgl_on and VGH/vgl_off, the reference voltage control signal terminals VGH/vgl_on are used for providing reference voltage control signals for controlling the output of the first voltage signal and the second voltage signal, and the reference voltage control signal terminals VGH/vgl_off are used for providing reference voltage control signals for controlling the turn-OFF of the first voltage signal and the second voltage signal. In this way, under the control of the reference voltage control signal, the output or off control of the reference signal can be realized.
In an exemplary embodiment, a switching tube may be disposed on output lines of the first voltage signal and the second voltage signal, and when the switching tube is implemented, the reference voltage control signal terminal is connected to a control terminal of the switching tube, so that the switching tube is controlled to be turned on or off by the reference voltage control signal provided by the reference voltage control signal terminal, and an output state of the first voltage signal and the second voltage signal can be controlled.
The display device of this embodiment includes all the technical solutions of the embodiments of the display assembly, so at least all the technical effects mentioned above can be achieved, and the description thereof is omitted herein.
While the foregoing is directed to the preferred implementation of the disclosed embodiments, it should be noted that numerous modifications and adaptations to those skilled in the art may be made without departing from the principles of the disclosure, and such modifications and adaptations are intended to be within the scope of the disclosure.
Claims (10)
1. The display assembly is characterized by comprising a display panel and a display driving chip, wherein the display driving chip is used for driving the display panel and is electrically connected with the power supply module;
the display assembly further comprises a first voltage signal line and a second voltage signal line which are connected with the power supply module, wherein the first voltage signal line is used for providing a first voltage signal, the second voltage signal line is used for providing a second voltage signal, and the first voltage signal line and the second voltage signal line are used as reference voltages of a grid driving circuit of the display panel.
2. The display assembly of claim 1, wherein the first voltage signal line and the second voltage signal line are both connected to the display driver chip, the reference voltage provided by the first voltage signal is an on voltage of the gate driver circuit, and the reference voltage provided by the second voltage signal is an off voltage of the gate driver circuit.
3. The display assembly of claim 2, wherein the display driver chip is further configured to compensate for the turn-on voltage to generate an initial turn-on voltage preset by the gate driver circuit, and to compensate for the turn-off voltage to generate an initial turn-off voltage preset by the gate driver circuit.
4. The display assembly of claim 1, wherein the first voltage signal line and the second voltage signal line are both connected to the display panel or the display driving chip;
The reference voltage provided by the first voltage signal is an initial start voltage preset by the gate driving circuit, and the reference voltage provided by the second voltage signal is an initial turn-off voltage preset by the gate driving circuit.
5. The display assembly of any one of claims 1 to 4, wherein the display driver chip is further connected to a reference voltage control signal terminal for providing a reference voltage control signal to the display driver chip that controls the output or shutdown of the first voltage signal and the second voltage signal.
6. A display device comprising a power module and the display assembly of any one of claims 1 to 5.
7. A display driving method applied to the display device according to claim 6, the method comprising:
The power supply module provides a first voltage signal through a first voltage signal line and provides a second voltage signal through a second voltage signal line;
the display panel acquires the first voltage signal and the second voltage signal as reference voltages of a gate driving circuit.
8. The method of claim 7, wherein the reference voltage provided by the first voltage signal is an on voltage of the gate drive circuit and the reference voltage provided by the second voltage signal is an off voltage of the gate drive circuit;
The method further comprises the steps of:
The display driving chip compensates the first voltage signal to generate an initial starting voltage preset by the grid driving circuit, and compensates the first voltage signal to generate an initial closing voltage preset by the grid driving circuit;
and providing the initial on voltage and the initial off voltage to the display panel through the display driving chip.
9. The method of claim 7, wherein the reference voltage provided by the first voltage signal is an initial turn-on voltage preset by the gate driving circuit, and the reference voltage provided by the second voltage signal is an initial turn-off voltage preset by the gate driving circuit;
The method comprises the following steps:
and providing the initial on voltage and the initial off voltage for the display panel through the power supply module.
10. The method of any one of claims 7 to 9, wherein the method further comprises:
Providing a reference voltage control signal through a reference voltage control signal terminal;
The display panel controls the first voltage signal and the second voltage signal to be output or turned off according to the reference voltage control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410383002.7A CN118053374A (en) | 2024-03-29 | 2024-03-29 | Display assembly, display device and display driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410383002.7A CN118053374A (en) | 2024-03-29 | 2024-03-29 | Display assembly, display device and display driving method |
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| Publication Number | Publication Date |
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| CN118053374A true CN118053374A (en) | 2024-05-17 |
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| CN202410383002.7A Pending CN118053374A (en) | 2024-03-29 | 2024-03-29 | Display assembly, display device and display driving method |
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