CN211788109U - Liquid crystal display panel driving device and liquid crystal display device - Google Patents
Liquid crystal display panel driving device and liquid crystal display device Download PDFInfo
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- CN211788109U CN211788109U CN202020552050.1U CN202020552050U CN211788109U CN 211788109 U CN211788109 U CN 211788109U CN 202020552050 U CN202020552050 U CN 202020552050U CN 211788109 U CN211788109 U CN 211788109U
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The utility model relates to a liquid crystal display panel drive arrangement and liquid crystal display device, liquid crystal display panel drive arrangement includes: the first power supply management unit is arranged in the control module and used for providing a first power supply voltage signal; the second power supply management unit is arranged in the source electrode driving module connected with the control module and used for providing a second power supply voltage signal; the time sequence control unit is arranged in the control module, is connected with the first power supply management unit and is used for receiving a first power supply voltage signal and providing a first time sequence control signal and a second time sequence control signal for the liquid crystal display panel; and the gamma correction circuit unit is arranged in the source electrode driving module, is connected with the second power supply management unit and is used for receiving the second power supply voltage signal and providing a gamma signal for the liquid crystal display panel. The liquid crystal display panel driving device is designed by separating the voltage output module, so that the working temperature of the voltage output IC is effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of the display, concretely relates to liquid crystal display panel drive arrangement and liquid crystal display device.
Background
Thin Film Transistor Liquid Crystal Display (TFT-LCD) is one of the major types of flat panel displays, and has become an important Display platform in modern IT and video products.
The liquid crystal display panel generally includes a Color Filter (CF), a Thin Film Transistor Array (TFT) Substrate, and a liquid crystal layer filled between the Color Filter Substrate and the TFT Array Substrate, and the liquid crystal display panel operates by applying a driving voltage to the Color Filter Substrate and the Array Substrate through a series of driving signals, such as a scanning signal, a data signal, a common voltage signal, and the like, to control the rotation of liquid crystal molecules of the liquid crystal layer, and to control the output of light, thereby generating a display image.
In a TFT-LCD, a conventional driving circuit architecture is composed of a Control Board (CB) and a source driver Board (X-Board, XB), that is, each display panel is matched with a CB and a plurality of XB connected to the panel, and specifically, the number of the XB is determined by the size of the panel.
In the current TFT-LCD liquid crystal display system, the CB includes the voltage output and control signals required for driving the whole panel. However, as the size and resolution of the liquid crystal panel are continuously increased, the load of the driving circuit becomes higher and higher, resulting in higher and higher operating temperature of the voltage output IC; meanwhile, due to the diversity of panel sizes, the commonality of the conventional CB + XB driving architecture is also increasingly poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems existing in the prior art, the utility model provides a liquid crystal display panel driving device and liquid crystal display device. The to-be-solved technical problem of the utility model is realized through following technical scheme:
the embodiment of the utility model provides a liquid crystal display panel drive arrangement, include:
the first power supply management unit is arranged in the control module and used for providing a first power supply voltage signal;
the second power supply management unit is arranged in the source electrode driving module connected with the control module and used for providing a second power supply voltage signal;
the time sequence control unit is arranged in the control module, is connected with the first power supply management unit and is used for receiving the first power supply voltage signal and providing a first time sequence control signal and a second time sequence control signal for the liquid crystal display panel;
and the gamma correction circuit unit is arranged in the source electrode driving module, is connected with the second power supply management unit and is used for receiving the second power supply voltage signal and providing a gamma signal for the liquid crystal display panel.
In an embodiment of the present invention, the source driving module includes a plurality of source driving sub-modules arranged side by side；The second power management unit is arranged in any one of the source electrode driving submodules.
The gamma correction circuit unit is arranged in any one of the source electrode driving submodules.
In an embodiment of the present invention, the liquid crystal display panel is a Gate COF type liquid crystal display panel.
In an embodiment of the present invention, the Gate COF type liquid crystal display panel includes:
the panel data driving unit is connected with the second power supply management unit, the time sequence control unit and the gamma correction circuit unit and used for receiving the second power supply voltage signal, the first time sequence control signal and the gamma signal to drive the panel unit;
and the scanning driving circuit unit is connected with the second power supply management unit and the time sequence control unit and is used for receiving the second power supply voltage signal and the second time sequence control signal to drive the panel unit.
In an embodiment of the present invention, the liquid crystal display panel is a GOA liquid crystal display panel.
In an embodiment of the present invention, the present invention further includes:
and the level conversion unit is arranged in the source electrode driving module, is connected with the second power supply management unit and the time sequence control unit, and is used for receiving the second power supply voltage signal and the second time sequence control signal and providing an array substrate row driving time sequence signal for the GOA liquid crystal display panel.
In an embodiment of the present invention, the level shift unit is disposed in any one of a plurality of the source driver sub-modules.
In an embodiment of the present invention, the GOA liquid crystal display panel includes:
the panel data driving unit is connected with the second power supply management unit, the time sequence control unit and the gamma correction circuit unit and is used for receiving the second power supply voltage signal, the first time sequence control signal and the gamma signal to drive the panel unit;
and the array substrate row driving unit is connected with the level conversion unit and used for receiving the array substrate row driving timing sequence signal to drive the panel unit.
Another embodiment of the present invention provides a liquid crystal display device, including:
a liquid crystal display panel;
and the driving device is connected with the liquid crystal display panel and adopts the liquid crystal display panel driving device of any one of the embodiments.
In an embodiment of the present invention, the liquid crystal display panel is a Gate COF type liquid crystal display panel or a GOA liquid crystal display panel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a set up first power management module and second power management module among the liquid crystal display panel drive arrangement, carry out the separation design with voltage output module, can adjust voltage output framework in a flexible way, according to the different designs of load collocation on different sizes and the resolution ratio panel to effectively reduce voltage output IC's operating temperature.
2. The utility model discloses a liquid crystal display panel drive arrangement can all place on control module through the voltage output design with different models, not unidimensional sharable, can improve the commonality of product design.
Drawings
Fig. 1 is a schematic structural diagram of a driving apparatus for a liquid crystal display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another lcd panel driving apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of signal transmission between the LCD panel driving device and the Gate COF type LCD panel in FIG. 2;
fig. 4 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another lcd panel driving apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of signal transmission between the LCD panel driving device and the GOA LCD panel in FIG. 5;
fig. 7 is a schematic structural diagram of another liquid crystal display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a liquid crystal display panel driving device according to an embodiment of the present invention.
This liquid crystal display panel adopts control module CB + source driver module XB's drive framework, and wherein, control module CB can be the control panel, and source driver module XB can be source drive board, can connect through Flexible Flat Cable (FFC) or Flexible Printed Circuit (FPC) between control module CB and the source driver module XB.
The drive means comprise a first power management unit PMU1 and a second power management unit PMU 2. The first power management unit PMU1 and the second power management unit PMU2 may both adopt power management chips, but the embodiment is not limited thereto.
A first power management unit PMU1 is arranged in the control module CB for providing a first supply voltage signal; in particular, the first power management unit PMU1 is primarily used to provide voltage outputs to the various circuit units in the control module CB, that is to say to place a shareable voltage output unit on CB.
A second power management unit PMU2 is provided in the source driver module XB for providing a second supply voltage signal; specifically, the second power management unit PMU2 is mainly used to provide voltage outputs to each circuit unit in the source driver module XB and the liquid crystal display panel, that is, to set a driver circuit on XB and a voltage output unit required by each IC on XB.
Further, the inputs of the first power management unit PMU1 and the second power management unit PMU2 may be connected to the same power supply output, inputting the same power supply voltage, such as an input voltage VIN of 12V; or connected to different power output terminals to input different power voltages; the specific input voltage depends on the voltages required by the different circuit modules.
In a specific embodiment, the source driving module XB includes a plurality of source driving sub-modules, that is, the source driving module XB may include 2 source driving sub-modules, such as a first source driving sub-module XL and a second source driving sub-module XR, and may also include 3 source driving sub-modules, such as a first source driving sub-module XL, a second source driving sub-module XR and a third source driving sub-module XM. Further, the source driver submodules are arranged in parallel and connected with the control board CB, and specifically, 1 or 2 of the source driver submodules are connected with the CB through an FFC or an FPC.
At this time, the second power management unit PMU2 is provided on any one of several source driver submodules, such as: PMU2 may be placed on XL, XR, XM, etc.
Further, in addition to PMU1 and PMU2, other units for driving the liquid crystal display panel, including but not limited to unit a and unit B in fig. 1, may be provided on the control module CB and on the source drive module XB, respectively, with PMU1 providing the supply voltage for unit a on CB and PMU2 providing the supply voltage for unit B on XB.
In one embodiment, the unit a may be a timing control unit TCON IC, and the unit B may be a Gamma correction circuit unit Gamma IC. The timing control unit TCON IC is disposed in the control module CB, connected to the first power management unit PMU1, and configured to receive the first power voltage signal and provide the first timing control signal and the second timing control signal to the liquid crystal display panel. The Gamma correction circuit unit Gamma IC is disposed in the source driver module XB, and is connected to the second power management unit PMU2, and is configured to receive the second power voltage signal and provide a Gamma signal to the liquid crystal display panel.
Furthermore, in this embodiment, the IC used for the circuit design of each module may be a separate type or an integrated type; that is, PMU2 may be integrated with one or more other units on XB, such as: the PMU2 may integrate an IC with a Gamma IC of a Gamma correction circuit unit on the XB, integrate an IC with a Level Shifter unit on the XB, or integrate an IC with the PMU2, the Gamma IC, and the Level Shifter unit, which is not limited in this embodiment.
The liquid crystal display panel driving device of the embodiment is provided with the first power management module PMU1 and the second power management module PMU2, the voltage output module is designed in a separated mode, the voltage output framework can be flexibly adjusted, and different designs are matched according to loads on panels with different sizes and resolutions, so that the working temperature of a voltage output IC can be effectively reduced. Meanwhile, the area of the PCB can be reduced, the cost is reduced, and the cost advantage of the XB + CB architecture design to a system factory is improved. In addition, voltage output designs which can be shared by different models and sizes can be placed on the CB, and the universality of product design is improved.
Example two
Referring to fig. 2 on the basis of the first embodiment, fig. 2 is a schematic structural diagram of another liquid crystal display panel driving apparatus according to an embodiment of the present invention. The liquid crystal display panel driving device is used for driving a Gate COF type liquid crystal display panel.
In fig. 2, the driving apparatus of the liquid crystal display panel adopts a driving framework of a control module CB + a source driving module XB, wherein the source driving module XB includes but is not limited to a first source driving sub-module XR and a second source driving sub-module XL, and the first source driving sub-module XR and the second source driving sub-module XL are respectively connected to the control module CB.
The liquid crystal display panel driving device includes: the power supply control circuit comprises a first power management unit PMU1, a second power management unit PMU2, a timing control unit TCON IC and a Gamma correction circuit unit Gamma IC. The timing control unit TCON IC may adopt a timing control chip, and the Gamma correction circuit unit Gamma IC may adopt a Gamma correction circuit chip.
Specifically, the first power management unit PMU1 and the timing control unit TCON IC are disposed on the control module CB, and the second power management unit PMU2 and the Gamma correction circuit unit Gamma IC are disposed on the source driving module XB. Further, the second power management unit PMU2 and the Gamma correction circuit unit Gamma IC may be both disposed on the first source driving sub-module XR; or both may be disposed on the second source driver submodule XL; PMU2 may also be set on XR and Gamma IC set on XL; PMU2 may also be set on XL and Gamma IC on XR; in fig. 2, both PMU2 and Gamma IC are provided on XR.
Referring to fig. 3, fig. 3 is a schematic signal transmission diagram between the liquid crystal display panel driving device and the Gate COF type liquid crystal display panel in fig. 2.
In fig. 3, the timing control unit TCON IC is connected to the first power management unit PMU1, and is configured to receive the first power voltage signal provided by the first power management unit PMU1 and provide the first timing control signal and the second timing control signal to the Gate COF type liquid crystal display panel.
Specifically, the first Power management unit PMU1 outputs a first Power voltage signal Power1 including VDD, Vcore, etc., to the timing control unit TCON IC. The timing control unit TCON IC receives the first Power voltage signal Power1 and generates a first timing control signal and a second timing control signal to be supplied to the Gate COF type liquid crystal display panel; the first timing control signal may be a Source timing control signal, including TP, POL, etc.; the second timing control signal may be a Gate timing control signal including STV, CPV, OE, and the like. Further, data transmission is performed between the control module CB and the source electrode driving module XB through a preset communication protocol; specifically, the preset communication protocol comprises one or more of mini-LVDS, IIC and SPI; that is, the image data can be transmitted between the control module CB and the source driving module XB through mini-LVDS or other protocols; each module on the CB and each module on the XB can also communicate through IIC, SPI and other communication protocols.
Specifically, the second Power management unit PMU2 outputs a second Power voltage signal Power2 including VDD, VAA, etc. to the Gamma correction circuit unit Gamma IC. The Gamma correction circuit unit Gamma IC receives the second Power voltage signal Power2 and generates a Gamma signal GMx to be provided to a Gate COF type lcd panel.
Referring to fig. 3 again, the Gate COF lcd panel of fig. 3 includes: a panel data driving unit S/D and a scan driving unit G/D. The panel data driving unit S/D and the scanning driving unit G/D are connected with the panel unit LCD and used for driving the panel unit LCD.
Specifically, the panel data driving unit S/D is connected to the Gamma correction circuit unit Gamma IC, the second Power management unit PMU2, and the timing control unit TCON IC, and is configured to receive the second Power voltage signal Power2 including VDD, VAA, HVAA, etc., output from the second Power management unit PMU2, receive the first timing control signal (Source timing control signal) output from the timing control unit TCON IC, and receive the Gamma signal GMx output from the Gamma correction circuit unit Gamma IC, thereby driving the panel unit LCD. Further, the timing control unit TCON IC transmits the panel display image data to the panel data driving unit S/D through the mini-LVDS protocol.
The scan driving unit G/D is connected to the second Power management unit PMU2 and the timing control unit TCON IC, and receives the second Power voltage signal Power2 including VDD, VGH, VSS, etc. output from the second Power management unit PMU2 and receives a second timing control signal (Gate timing control signal) output from the timing control unit TCON IC, thereby driving the panel unit LCD.
In this embodiment, the first power management unit PMU1 provides voltage for the timing control unit TCON IC, and the second power management unit PMU2 provides voltage for the Gamma correction circuit unit Gamma IC, the panel data driving unit S/D, and the scan driving unit G/D, and a conventional single voltage output module DC-DC is separately designed, so that different designs can be matched according to loads on panels of different sizes and resolutions, and a voltage output architecture can be flexibly adjusted, thereby effectively reducing the operating temperature of the voltage output IC; meanwhile, the voltage output modules are separately designed, and voltage output designs which can be shared by different models and sizes can be placed on the CB, so that the universality of product design can be improved. In addition, the PCB area can be reduced, and the cost is reduced.
EXAMPLE III
On the basis of the second embodiment, please refer to fig. 4, and fig. 4 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention. The liquid crystal display device includes: a Gate COF type liquid crystal display panel and a driving device; the driving device in the second embodiment is used as the driving device, and the liquid crystal display panel of the Gate COF type is used as the liquid crystal display panel described in the second embodiment. Specifically, the driving device is connected with the panel unit LCD through the panel data driving unit S/D, and the scanning driving unit G/D is connected with the XB through the wiring on the panel unit LCD.
Example four
On the basis of the first embodiment, please refer to fig. 5, and fig. 5 is a schematic structural diagram of another lcd panel driving apparatus according to an embodiment of the present invention. The liquid crystal display panel driving device is used for driving the GOA liquid crystal display panel.
In fig. 5, the liquid crystal display panel driving apparatus employs a driving framework of a control module CB + a source driving module XB, where the source driving module XB includes but is not limited to a first source driving sub-module XR and a second source driving sub-module XL, and the first source driving sub-module XR and the second source driving sub-module XL are respectively connected to the control module CB.
The liquid crystal display panel driving device includes: the system comprises a first power management unit PMU1, a second power management unit PMU2, a timing control unit TCON IC, a Gamma correction circuit unit Gamma IC and a Level conversion unit Level Shifter. The timing control unit TCON IC may adopt a timing control chip, the Gamma correction circuit unit Gamma IC may adopt a Gamma correction circuit chip, and the Level shift unit Level Shifter may adopt a Level shift chip.
Specifically, the first power management unit PMU1 and the timing control unit TCON IC are provided on the control module CB, and the second power management unit PMU2, the Gamma correction circuit unit Gamma IC, and the Level shift unit Level are provided on the source drive module XB. Further, the second power management unit PMU2, the Gamma correction circuit unit Gamma IC, and the Level shift unit Level may all be disposed on the first source driving submodule XR; or both may be disposed on the second source driver submodule XL; or one part is arranged on XR and the other part is arranged on XL; in FIG. 5, PMU2, Gamma IC, and Level Shifter are all set on XR.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating signal transmission between the liquid crystal display panel driving device and the GOA liquid crystal display panel in fig. 5.
In fig. 6, the timing control unit TCON IC is connected to the first power management unit PMU1, and is configured to receive the first power voltage signal provided by the first power management unit PMU1 and provide the first timing control signal and the second timing control signal to the GOA liquid crystal display panel.
Specifically, the first Power management unit PMU1 outputs a first Power voltage signal Power1 including VDD, Vcore, etc., to the timing control unit TCON IC. The time sequence control unit TCON IC receives the first Power voltage signal Power1 and generates a first time sequence control signal and a second time sequence control signal to be provided for the GOA liquid crystal display panel; the first timing control signal may be a Source timing control signal, including TP, POL, etc.; the second timing control signal may be a timing control signal required by the Level shift unit Level Shifter, including STV, CKV, LC, and the like. Further, the TCON IC may use the IIC, SPI, or other communication protocol to transmit data to other ICs, and use the mini-LVDS or other protocol to transmit the panel display image data.
Specifically, the second Power management unit PMU2 outputs a second Power voltage signal Power2 including VDD, VAA, etc. to the Gamma correction circuit unit Gamma IC. The Gamma correction circuit unit Gamma IC receives the second Power voltage signal Power2 and generates a Gamma signal GMx to be provided to the GOA liquid crystal display panel.
Specifically, the second Power management unit PMU2 outputs a second Power supply voltage signal Power2 including VDD, VGH, VSS1, VSS2, and the like to the Level shift unit Level Shifter. The Level shift unit Level Shifter receives the second Power voltage signal Power2 and the second timing control signal output by the timing control unit TCON IC, and generates an array substrate row driving timing signal to provide to the GOA liquid crystal display panel.
Referring to fig. 6 again, the GOA liquid crystal display panel in fig. 6 includes: a panel data driving unit S/D and an array substrate row driving unit GOA. The panel data driving unit S/D is connected with the panel unit LCD, the array substrate row driving unit GOA is arranged in the panel unit LCD, and the panel data driving unit S/D and the array substrate row driving unit GOA are used for driving the panel unit LCD.
Specifically, the panel data driving unit S/D is connected to the Gamma correction circuit unit Gamma IC, the second Power management unit PMU2, and the timing control unit TCON IC, and is configured to receive the second Power voltage signal Power2 including VDD, VAA, HVAA, etc. output from the second Power management unit PMU2, receive the first timing control signal (Source timing control signal) output from the timing control unit TCON IC, and receive the Gamma signal GMx output from the Gamma correction circuit unit Gamma IC.
The array substrate row driving unit GOA is connected with the Level conversion unit Level Shifter through a routing, and is used for receiving array substrate row driving time sequence signals output by the Level conversion unit Level Shifter.
In this embodiment, the first power management unit PMU1 provides voltage for the timing control unit TCON IC, the second power management unit PMU2 provides voltage for the Gamma correction circuit unit Gamma IC, the panel data driving unit S/D, and the level shifter, and the conventional single voltage output module DC-DC is separately designed, so that different designs can be matched according to loads on panels of different sizes and resolutions, and the voltage output architecture can be flexibly adjusted, thereby effectively reducing the operating temperature of the voltage output IC; meanwhile, the voltage output modules are separately designed, and voltage output designs which can be shared by different models and sizes can be placed on the CB, so that the universality of product design can be improved. In addition, the PCB area can be reduced, and the cost is reduced.
EXAMPLE five
On the basis of the fourth embodiment, please refer to fig. 7, and fig. 7 is a schematic structural diagram of another liquid crystal display device according to an embodiment of the present invention. The liquid crystal display device includes: the GOA liquid crystal display panel and the driving device; the driving device in the fourth embodiment is adopted as the driving device, and the liquid crystal display panel in the fourth embodiment is adopted as the GOA liquid crystal display panel. Specifically, the driving device is connected with the panel unit LCD through the panel data driving unit S/D, and the array substrate row driving unit GOA is connected with the Level shift unit Level Shifter through routing.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. A liquid crystal display panel driving apparatus, comprising:
the first power supply management unit is arranged in the control module and used for providing a first power supply voltage signal;
the second power supply management unit is arranged in the source electrode driving module connected with the control module and used for providing a second power supply voltage signal;
the time sequence control unit is arranged in the control module, is connected with the first power supply management unit and is used for receiving the first power supply voltage signal and providing a first time sequence control signal and a second time sequence control signal for the liquid crystal display panel;
and the gamma correction circuit unit is arranged in the source electrode driving module, is connected with the second power supply management unit and is used for receiving the second power supply voltage signal and providing a gamma signal for the liquid crystal display panel.
2. The liquid crystal display panel driving device according to claim 1,
the source electrode driving module comprises a plurality of source electrode driving sub-modules arranged in parallel；
The second power supply management unit is arranged in any one of the source electrode driving submodules;
the gamma correction circuit unit is arranged in any one of the source electrode driving submodules.
3. The liquid crystal display panel driving device according to claim 1, wherein the liquid crystal display panel is a GateCOF type liquid crystal display panel.
4. The liquid crystal display panel driving device according to claim 3, wherein the Gate COF type liquid crystal display panel comprises:
the panel data driving unit is connected with the second power supply management unit, the time sequence control unit and the gamma correction circuit unit and used for receiving the second power supply voltage signal, the first time sequence control signal and the gamma signal to drive the panel unit;
and the scanning driving circuit unit is connected with the second power supply management unit and the time sequence control unit and is used for receiving the second power supply voltage signal and the second time sequence control signal to drive the panel unit.
5. The liquid crystal display panel driving device according to claim 2, wherein the liquid crystal display panel is a GOA liquid crystal display panel.
6. The liquid crystal display panel driving device according to claim 5, further comprising:
and the level conversion unit is arranged in the source electrode driving module, is connected with the second power supply management unit and the time sequence control unit, and is used for receiving the second power supply voltage signal and the second time sequence control signal and providing an array substrate row driving time sequence signal for the GOA liquid crystal display panel.
7. The liquid crystal display panel driving apparatus of claim 6, wherein the level converting unit is provided in any one of a number of the source driving sub-modules.
8. The liquid crystal display panel driving apparatus of claim 6, wherein the GOA liquid crystal display panel comprises:
the panel data driving unit is connected with the second power supply management unit, the time sequence control unit and the gamma correction circuit unit and used for receiving the second power supply voltage signal, the first time sequence control signal and the gamma signal to drive the panel unit;
and the array substrate row driving unit is connected with the level conversion unit and used for receiving the array substrate row driving timing sequence signal to drive the panel unit.
9. A liquid crystal display device, comprising:
a liquid crystal display panel;
a driving device connected to the liquid crystal display panel, wherein the liquid crystal display panel driving device according to any one of claims 1 to 8 is used.
10. The liquid crystal display device according to claim 9, wherein the liquid crystal display panel is a Gate COF type liquid crystal display panel or a GOA liquid crystal display panel.
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| CN202020552050.1U CN211788109U (en) | 2020-04-14 | 2020-04-14 | Liquid crystal display panel driving device and liquid crystal display device |
| PCT/CN2021/085768 WO2021208782A1 (en) | 2020-04-14 | 2021-04-07 | Liquid crystal display panel drive apparatus and liquid crystal display apparatus |
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| CN202020552050.1U CN211788109U (en) | 2020-04-14 | 2020-04-14 | Liquid crystal display panel driving device and liquid crystal display device |
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| WO2021208782A1 (en) * | 2020-04-14 | 2021-10-21 | 咸阳彩虹光电科技有限公司 | Liquid crystal display panel drive apparatus and liquid crystal display apparatus |
| CN114242010A (en) * | 2021-12-15 | 2022-03-25 | 惠州视维新技术有限公司 | Level conversion circuit and display device |
| CN114299872A (en) * | 2022-01-04 | 2022-04-08 | 京东方科技集团股份有限公司 | Driving circuit, driving method thereof and display device |
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| CN114063924A (en) * | 2021-11-18 | 2022-02-18 | 惠州华星光电显示有限公司 | Power management chip data configuration method, configuration framework and display panel |
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| KR102383831B1 (en) * | 2017-09-29 | 2022-04-06 | 주식회사 엘엑스세미콘 | Panel driving apparatus, display device and integrated circuit |
| CN208157021U (en) * | 2018-05-29 | 2018-11-27 | 上海和辉光电有限公司 | A kind of power control circuit |
| CN208986673U (en) * | 2018-08-07 | 2019-06-14 | 昆山龙腾光电有限公司 | Electric power management circuit and display device |
| CN109712555A (en) * | 2019-02-25 | 2019-05-03 | 合肥京东方显示技术有限公司 | Control circuit board, additional circuit boards and display device |
| CN211788109U (en) * | 2020-04-14 | 2020-10-27 | 咸阳彩虹光电科技有限公司 | Liquid crystal display panel driving device and liquid crystal display device |
-
2020
- 2020-04-14 CN CN202020552050.1U patent/CN211788109U/en active Active
-
2021
- 2021-04-07 WO PCT/CN2021/085768 patent/WO2021208782A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208782A1 (en) * | 2020-04-14 | 2021-10-21 | 咸阳彩虹光电科技有限公司 | Liquid crystal display panel drive apparatus and liquid crystal display apparatus |
| CN114242010A (en) * | 2021-12-15 | 2022-03-25 | 惠州视维新技术有限公司 | Level conversion circuit and display device |
| CN114242010B (en) * | 2021-12-15 | 2023-03-10 | 惠州视维新技术有限公司 | Level conversion circuit and display device |
| CN114299872A (en) * | 2022-01-04 | 2022-04-08 | 京东方科技集团股份有限公司 | Driving circuit, driving method thereof and display device |
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| Publication number | Publication date |
|---|---|
| WO2021208782A1 (en) | 2021-10-21 |
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