CN212411555U - Driving device and electronic apparatus - Google Patents
Driving device and electronic apparatus Download PDFInfo
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- CN212411555U CN212411555U CN202022261094.1U CN202022261094U CN212411555U CN 212411555 U CN212411555 U CN 212411555U CN 202022261094 U CN202022261094 U CN 202022261094U CN 212411555 U CN212411555 U CN 212411555U
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Abstract
The utility model relates to a driving device and an electronic device, the device comprises a voltage generating module, a switch module, a capacitor module, a transistor module and a light-emitting module, wherein the voltage generating module is used for generating a first voltage and a second voltage; the switch module is used for outputting the first voltage to the first end of the capacitor module in a first time period and outputting the second voltage to the second end of the capacitor module in a second time period so as to set the voltage of the first end of the capacitor module; and the transistor module is used for driving the light-emitting module to emit light by utilizing the voltage at the first end of the capacitor module. Through above device, the embodiment of the utility model provides a can realize the compensation to the loss that the transistor module exists, the voltage through the first end of electric capacity module when stable switches on the transistor module and gives out light with the drive light emitting module, can improve light emitting module's luminance.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a drive arrangement and electronic equipment.
Background
Along with the continuous development of science and technology, people's standard of living is constantly improved, and various types of electronic equipment that possess the display function are more and more favored, however, display panel among the present electronic equipment exists because of display panel self problem, has luminance not enough or scintillation problem, and this has not only influenced user experience, still can shorten display panel's life-span.
SUMMERY OF THE UTILITY MODEL
Technical problem
In view of this, the technical problem to be solved by the present invention is how to solve the problems of insufficient brightness and flicker of the display panel.
Solution scheme
In order to solve the above technical problem, according to the utility model discloses an embodiment provides a driving device, the device includes voltage generation module, switch module, electric capacity module, transistor module and light emitting module, wherein:
the voltage generation module is used for generating a first voltage and a second voltage;
the switch module is electrically connected to the voltage generation module and the capacitor module, and is used for outputting the first voltage to a first end of the capacitor module in a first time period and outputting the second voltage to a second end of the capacitor module in a second time period so as to set the voltage of the first end of the capacitor module;
the transistor module is electrically connected to the first end of the capacitor module and the light-emitting module, and is used for driving the light-emitting module to emit light by using the voltage of the first end of the capacitor module.
For the above apparatus, in one possible implementation, the voltage generating module includes:
the first voltage generating unit is used for generating the first voltage according to brightness information and a preset brightness voltage relationship, wherein the preset brightness voltage relationship comprises an incidence relationship between the brightness information and the voltage.
For the above apparatus, in one possible implementation manner, the voltage generation module further includes:
and the second voltage generation unit is used for generating the second voltage according to the type of the transistor in the transistor module and the threshold voltage of the transistor.
For the above apparatus, in a possible implementation manner, the generating the second voltage according to the type of the transistor in the transistor module and the threshold voltage of the transistor includes:
when the transistor in the transistor module is an NMOS transistor, generating a second voltage which is larger than the threshold voltage of the NMOS transistor and is positive; or
And when the transistor in the transistor module is a PMOS transistor, generating a second voltage which is larger than the threshold voltage of the PMOS transistor and is negative.
For the above apparatus, in one possible implementation manner, the switch module includes a first switch, a second switch, and a third switch, where:
the first end of the first switch is used for receiving the first voltage, the second end of the first switch is electrically connected to the first end of the capacitor module,
the first end of the second switch is grounded, the second end is electrically connected with the second end of the capacitor module,
the first end of the third switch is used for receiving the second voltage, and the second end of the third switch is electrically connected to the second end of the capacitor module.
For the above apparatus, in one possible implementation, the switch module is further configured to:
in a first time period, turning on the first switch and the second switch, turning off the third switch, and outputting the first voltage to a first end of the capacitor module;
and in a second time period, the third switch is turned on, the first switch and the second switch are turned off, and the second voltage is output to the second end of the capacitor module.
For the above apparatus, in one possible implementation, the capacitance module includes:
a first end of the first capacitor is electrically connected to the switch module and the transistor module as a first end of the capacitor module, and a second end of the first capacitor is electrically connected to the switch module as a second end of the capacitor module.
For the above apparatus, in one possible implementation manner, the transistor module includes a plurality of transistor modules, a plurality of capacitor modules, a plurality of light emitting modules, the switch module may include a plurality of first switches, the first voltage generating unit may generate a plurality of first voltages,
wherein the voltage generation module is further configured to output a plurality of first voltages, each first voltage corresponding to each transistor module;
the switch module is further used for setting the voltage of the first end of each capacitor module by using each first voltage and each second voltage respectively, so that the transistor module drives the light emitting module.
For the above device, in a possible implementation manner, the light emitting module includes any one or more of an LCD, an LED, a MiniLED, a micro LED, and an OLED.
According to an aspect of the present invention, there is provided an electronic device, comprising the driving apparatus.
In one possible implementation, the electronic device includes a display, a smartphone, or a portable device.
Advantageous effects
Through above device, the embodiment of the utility model provides a can utilize and produce first voltage and second voltage, through switch module output first voltage and second voltage to the both ends of electric capacity module at different time quantums to the first end of control electric capacity module reaches steady state, can realize the compensation to the loss that the transistor module exists, and the voltage through electric capacity module first end when stable switches on the transistor module and is luminous with the drive light emitting module, can improve light emitting module's luminance.
Other features and aspects of the present invention will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present invention and, together with the description, serve to explain the principles of the invention.
Fig. 1 shows a block diagram of a drive device according to an embodiment of the invention.
Fig. 2 shows a schematic view of a drive arrangement according to an embodiment of the invention.
Fig. 3 and 4 show schematic diagrams of a driving device according to an embodiment of the present invention.
Fig. 5 shows a schematic view of a drive arrangement according to an embodiment of the invention.
Fig. 6 shows a schematic view of a drive arrangement according to an embodiment of the invention.
Fig. 7 shows a schematic view of a drive arrangement according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Referring to fig. 1, fig. 1 is a block diagram of a driving device according to an embodiment of the present invention.
As shown in fig. 1, the apparatus includes a voltage generating module 10, a switching module 20, a capacitor module 30, a transistor module 40, and a light emitting module 50, wherein:
the voltage generating module 10 is used for generating a first voltage and a second voltage;
the switch module 20, electrically connected to the voltage generating module 10 and the capacitor module 30, is configured to output the first voltage to a first end of the capacitor module 30 in a first time period, and output the second voltage to a second end of the capacitor module 30 in a second time period, so as to set a voltage at the first end of the capacitor module 30;
the transistor module 40 is electrically connected to the first end of the capacitor module 30 and the light emitting module 50, and is configured to drive the light emitting module 50 to emit light by using the voltage at the first end of the capacitor module 30.
Through above device, the embodiment of the utility model provides a can utilize and produce first voltage and second voltage, through switch module output first voltage and second voltage to the both ends of electric capacity module at different time quantums to the first end of control electric capacity module reaches steady state, can realize the compensation to the loss that the transistor module exists, the voltage when stabilizing through electric capacity module first end switches on the transistor module and gives out light with the drive light emitting module, can improve light emitting module's luminance, and solve the scintillation problem.
The device of the embodiment of the present invention can be various electronic devices with display function, and is also called User Equipment (UE), Mobile Station (MS), Mobile Terminal (MT), etc., and is a device providing voice and/or data connectivity for users, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in vehicle networking, and the like.
In a possible implementation manner, the Light Emitting module includes any one or more of an LCD (Liquid Crystal Display), an LED (Light Emitting Diode), a Mini LED (Mini Light Emitting Diode), a Micro LED (Micro Light Emitting Diode), and an OLED (Organic Light-Emitting Diode).
It should be noted that each module in the embodiment of the present invention may be implemented by a hardware circuit, and the following description exemplarily describes possible implementations of each module in the driving apparatus.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a driving device according to an embodiment of the present invention.
In one possible implementation, as shown in fig. 2, the voltage generation module 10 may include:
the first voltage generating unit 110 is configured to generate the first voltage Vin according to luminance information and a preset luminance voltage relationship, where the preset luminance voltage relationship includes an association relationship between the luminance information and a voltage.
In an example, the preset luminance relationship may be set in advance, for example, the relationship between luminance and voltage may be set according to the type of the display transistor included in the light emitting module, and different preset luminance and voltage relationships may be set for different light emitting modules.
The embodiment of the utility model provides a do not restrict to specific luminance relation of predetermineeing, do not restrict yet to light emitting module's type, technical personnel in the field can set up as required.
The present invention is not limited to the specific implementation of the first voltage generating unit, and those skilled in the art can select the voltage generating device (e.g., AC/DC converter device, DC/DC converter device) in the related art as required.
In one example, the voltage generation module may include a storage unit (not shown) for storing a preset luminance relationship or other data generated by the respective modules of the driving apparatus.
The memory unit may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
In summary, in one possible embodiment, the transistor module 40 may include at least one transistor, and the type of the transistor may be an NMOS transistor, a PMOS transistor, or the like.
The transistor module 40 may serve as a driving stage of the light emitting module 50 to drive light emission in the light emitting module.
In an example, since the transistor has the threshold voltage VTH, when the transistor module is turned on to drive the light emitting module, the threshold voltage VTH may cause a loss of the first voltage generated by the first voltage generating unit 110, and if the transistor module is still turned on by the first voltage and then the light emitting module is driven, the luminance of the light emitting module may be insufficient, and the light emitting module may not be displayed normally, which may affect the user experience.
In one possible implementation manner, as shown in fig. 2, the voltage generation module 10 may further include:
a second voltage generating unit 120 for generating the second voltage VX according to the type of transistors in the transistor module 40 and the threshold voltage of the transistors.
The utility model discloses second voltage produces the threshold voltage production second voltage of unit according to the type of transistor and transistor to compensate the loss of the transistor in the transistor module, can improve light emitting module's luminance.
It should be noted that, the embodiment of the present invention does not limit the specific implementation of the second voltage generating unit, and a person skilled in the art may select the voltage generating device in the related art to implement the second voltage generating unit according to needs.
In a possible implementation manner, the generating the second voltage according to the type of the transistor in the transistor module and the threshold voltage of the transistor may include:
when the transistor in the transistor module is an NMOS transistor, generating a second voltage which is larger than the threshold voltage of the NMOS transistor and is positive; or
And when the transistor in the transistor module is a PMOS transistor, generating a second voltage which is larger than the threshold voltage of the PMOS transistor and is negative.
To the transistor of different grade type, the embodiment of the utility model provides a can produce the second voltage that is greater than transistor threshold voltage to adjust the negativity value of second voltage according to the type, compensate to the loss of the transistor of different grade type pertinence, improved the suitability.
In one possible implementation, as shown in fig. 2, the switch module 20 may include a first switch S1, a second switch S2, and a third switch S3, wherein:
a first terminal of the first switch S1 is used for receiving the first voltage Vin, a second terminal of the first switch S1 is electrically connected to the first terminal of the capacitor module 30,
the first terminal of the second switch S2 is grounded, the second terminal is electrically connected to the second terminal of the capacitor module 30,
the first end of the third switch S3 is used for receiving the second voltage VX, and the second end is electrically connected to the second end of the capacitor module 30.
Through each switch of above switch module, the embodiment of the utility model provides a can realize exporting the first end and the second end of electric capacity module respectively with first voltage, second voltage at different time quantums to the voltage of the first end of adjustment electric capacity module, thereby realize the compensation to the loss of transistor module, with the driving force when improving the drive light emitting module.
Referring to fig. 3 and 4, fig. 3 and 4 are schematic views illustrating a driving device according to an embodiment of the present invention.
In one possible implementation, as shown in fig. 3, the switch module may be further configured to:
in a first period, the first switch S1 and the second switch S2 are turned on, the third switch S3 is turned off, and the first voltage Vin is output to the first terminal of the capacitor module 30.
In one example, in the first period, by turning on the first switch S1 and the second switch S2 and turning off the third switch S3, the embodiment of the invention can stabilize the first terminal voltage of the capacitor module to the first voltage.
In one possible embodiment, as shown in fig. 4, in the second period, the third switch S3 is turned on, the first switch S1 and the second switch S2 are turned off, and the second voltage VX is output to the second end of the capacitor module 30.
In one example, in the second period, by turning on the third switch S3, turning off the first switch S1 and the second switch S2, the embodiment of the present invention can raise the first terminal voltage of the capacitor module to V1+ V2, that is, the input terminal voltage VG ═ V1+ V2 of the transistor module, so that the embodiment of the present invention can compensate the loss of the transistor module to improve the brightness of the light emitting module.
In one example, assuming that the transistors in the transistor module are NMOS transistors, and assuming that the second voltage generated according to the threshold voltage of the NMOS transistors is 4V and the first voltage generated according to the preset luminance relationship is 5V, the voltage VG at the first end of the capacitor module and the input end of the transistor module is V1+ V2 is 9V.
In one example, assuming that the transistors in the transistor module are PMOS transistors, and assuming that the second voltage generated according to the threshold voltage of the NMOS transistor is-4V and the first voltage generated according to the preset luminance relationship is 1V, the voltage VG at the first end of the capacitor module and the input end of the transistor module is-3V 1+ V2.
In one possible implementation, as shown in fig. 2, the capacitance module 30 may include:
a first capacitor C1, wherein a first end of the first capacitor C1 is electrically connected to the switch module 20 and the transistor module 40 as a first end of the capacitor module 30, and a second end of the first capacitor C1 is electrically connected to the switch module 20 as a second end of the capacitor module 30.
Of course, in other embodiments, the capacitor module may further include other capacitors, or the first capacitor C1 may be a plurality of capacitors and other components connected in parallel or in series, which is not limited in the embodiments of the present invention.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating a driving device according to an embodiment of the present invention.
In one possible embodiment, as shown in fig. 5, the light emitting module 50 may be arranged between the transistor module and the voltage VDD differently from that shown in fig. 2, thereby realizing driving the light emitting module with different types of transistors.
Referring to fig. 6, fig. 6 is a schematic diagram of a driving device according to an embodiment of the present invention.
In a possible implementation manner, as shown in fig. 6, the switch module, the capacitor module, the transistor module, and the light emitting module may be used as separate display components, and the first voltage Vin and the second voltage VX generated by one voltage generating module may be used to drive a plurality of display components, so as to eliminate the influence of the loss of the transistor module in each display component and improve the light emitting brightness of the light emitting module.
Referring to fig. 7, fig. 7 is a schematic diagram of a driving device according to an embodiment of the present invention.
In one possible embodiment, as shown in fig. 7, a plurality of transistor modules, a plurality of capacitor modules, and a plurality of light emitting modules may be included, the switch module may include a plurality of first switches (S11 to S1K, K is an integer greater than 1), the first voltage generating unit may generate a plurality of first voltages (Vin1 to VinkK),
wherein the voltage generation module is further configured to output a plurality of first voltages, each first voltage corresponding to each transistor module;
the switch module is further used for setting the voltage of the first end of each capacitor module by using each first voltage and each second voltage respectively, so that the transistor module drives the light emitting module.
For the connection relationship among the voltage generation module, the switch module, the capacitor module, and other modules in the above apparatus, please refer to the foregoing description, which is not repeated herein.
Through the setting, the embodiment of the utility model provides a can increase drive arrangement's suitable scope, carry out the voltage compensation of adaptability to a plurality of transistors on the display panel for each light emitting module's display brightness promotes, with the display effect who improves whole display panel.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A driving apparatus, comprising a voltage generating module, a switching module, a capacitor module, a transistor module, and a light emitting module, wherein:
the voltage generation module is used for generating a first voltage and a second voltage;
the switch module is electrically connected to the voltage generation module and the capacitor module, and is used for outputting the first voltage to a first end of the capacitor module in a first time period and outputting the second voltage to a second end of the capacitor module in a second time period so as to set the voltage of the first end of the capacitor module;
the transistor module is electrically connected to the first end of the capacitor module and the light-emitting module, and is used for driving the light-emitting module to emit light by using the voltage of the first end of the capacitor module.
2. The apparatus of claim 1, wherein the voltage generation module comprises:
the first voltage generating unit is used for generating the first voltage according to brightness information and a preset brightness voltage relationship, wherein the preset brightness voltage relationship comprises an incidence relationship between the brightness information and the voltage.
3. The apparatus of claim 2, wherein the voltage generation module further comprises:
and the second voltage generation unit is used for generating the second voltage according to the type of the transistor in the transistor module and the threshold voltage of the transistor.
4. The apparatus of claim 3, wherein the generating the second voltage according to a type of transistor and a threshold voltage of a transistor in the transistor module comprises:
when the transistor in the transistor module is an NMOS transistor, generating a second voltage which is larger than the threshold voltage of the NMOS transistor and is positive; or
And when the transistor in the transistor module is a PMOS transistor, generating a second voltage which is larger than the threshold voltage of the PMOS transistor and is negative.
5. The apparatus of claim 1, wherein the switch module comprises a first switch, a second switch, and a third switch, wherein:
the first end of the first switch is used for receiving the first voltage, the second end of the first switch is electrically connected to the first end of the capacitor module,
the first end of the second switch is grounded, the second end is electrically connected with the second end of the capacitor module,
the first end of the third switch is used for receiving the second voltage, and the second end of the third switch is electrically connected to the second end of the capacitor module.
6. The apparatus of claim 5, wherein the switch module is further configured to:
in a first time period, turning on the first switch and the second switch, turning off the third switch, and outputting the first voltage to a first end of the capacitor module;
and in a second time period, the third switch is turned on, the first switch and the second switch are turned off, and the second voltage is output to the second end of the capacitor module.
7. The apparatus of claim 1, wherein the capacitance module comprises:
a first end of the first capacitor is electrically connected to the switch module and the transistor module as a first end of the capacitor module, and a second end of the first capacitor is electrically connected to the switch module as a second end of the capacitor module.
8. The apparatus of claim 1, wherein the transistor module comprises a plurality of transistor modules, a plurality of capacitor modules, a plurality of light emitting modules, the switch module comprises a plurality of first switches, the first voltage generating unit generates a plurality of first voltages,
wherein the voltage generation module is further configured to output a plurality of first voltages, each first voltage corresponding to each transistor module;
the switch module is further used for setting the voltage of the first end of each capacitor module by using each first voltage and each second voltage respectively, so that the transistor module drives the light emitting module.
9. The device of claim 1, wherein the light emitting module comprises any one or more of LCD, LED, MiniLED, micro LED, OLED.
10. An electronic device, characterized in that the electronic device comprises a driving apparatus according to any one of claims 1 to 9.
11. The electronic device of claim 10, wherein the electronic device comprises a display, a smartphone, or a portable device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261094.1U CN212411555U (en) | 2020-10-12 | 2020-10-12 | Driving device and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261094.1U CN212411555U (en) | 2020-10-12 | 2020-10-12 | Driving device and electronic apparatus |
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| Publication Number | Publication Date |
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| CN212411555U true CN212411555U (en) | 2021-01-26 |
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| CN202022261094.1U Active CN212411555U (en) | 2020-10-12 | 2020-10-12 | Driving device and electronic apparatus |
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| CN (1) | CN212411555U (en) |
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