CN109410816A - Display device and driving method thereof - Google Patents
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- CN109410816A CN109410816A CN201811412790.9A CN201811412790A CN109410816A CN 109410816 A CN109410816 A CN 109410816A CN 201811412790 A CN201811412790 A CN 201811412790A CN 109410816 A CN109410816 A CN 109410816A
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- 230000005669 field effect Effects 0.000 claims description 15
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- 238000010586 diagram Methods 0.000 description 4
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Classifications
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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
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application provides a display device and a driving method thereof. The display device comprises the main board and the control board. The mainboard is used for sending VBO signals and control signals. The control board is used for receiving the control signal, triggering one of a plurality of VBO receiving ends according to the control signal, and receiving the VBO signal through the triggered VBO receiving end. In the application, the control panel is provided with a plurality of VBO receiving ends, the control panel triggers the VBO receiving end matched with the mainboard according to the control signal, and the VBO receiving end after triggering receives the VBO signal, so that the problem of abnormal pictures caused by mismatching of the control panel and the mainboard is avoided.
Description
Technical field
This application involves display field more particularly to a kind of display device and its driving methods.
Background technique
With the increase for the demand for showing high-quality screen to display device, for the signal transmission interface of display device
It is required that also higher and higher.VBO signal has many advantages, such as that transmission quality is high, transmission speed is fast and saves cost and installation space,
It is widely used in showing that equipment, especially high definition show equipment.
Ultra high-definition (Ultra High Definition, UHD) or the display device with more high-res at present, generally
Use VBO (V-By-One) signal as the interface communicated between mainboard and control panel.The mainboard of different businessmans may provide
Different VBO signals, therefore when control panel is matched with mainboard, the mainboard for exporting the VBO signal of unlike signal format should be using not
Same control panel is matching.But it is unfavorable for the control to display screen control panel in this way；Once matching error, will
Cause picture abnormal.
Summary of the invention
Based on this, it is necessary to for leading to the problem of exception because mainboard and control panel mismatch at present so as to cause picture,
A kind of display device and its driving method are provided.
The embodiment of the present application provides a kind of display device, comprising:
Mainboard, for sending VBO (V-By-One) signal and control signal；
Control panel triggers the multiple VBO itself having according to the control signal and receives for receiving the control signal
One in end, and the VBO signal is received by the receiving end VBO after triggering.
The control panel includes: in one of the embodiments,
First receiving end VBO, for receiving the VBO signal when the control signal is high level；And
2nd receiving end VBO, for receiving the VBO signal when the control signal is low level.
The control panel further includes control circuit in one of the embodiments, for receiving the control signal, and
When the control signal is high level, high level voltage is provided for the first receiving end VBO, to trigger the first VBO
Receiving end provides high level voltage when the control signal is low level for the 2nd receiving end VBO, described in triggering
2nd receiving end VBO.
The control circuit includes: in one of the embodiments,
First controlling brancher, for providing high electricity for the first receiving end VBO when the control signal is high level
Ordinary telegram pressure, to trigger the first receiving end VBO, so that the control panel receives the VBO by the first receiving end VBO
Signal；And
Second controlling brancher, for providing high electricity for the 2nd receiving end VBO when the control signal is low level
Ordinary telegram pressure, to trigger the 2nd receiving end VBO, so that the control panel receives the VBO by the 2nd receiving end VBO
Signal.
First controlling brancher includes: in one of the embodiments,
First switch tube, grid are connect with the mainboard, and drain electrode is connect with the high level voltage, source electrode and described first
The connection of the receiving end VBO；And
First resistor is arranged in series between the grid of the first switch tube and the drain electrode of the first switch tube.
Second controlling brancher includes: in one of the embodiments,
Second switch, grid are connect with the mainboard, and source electrode is connect with the high level voltage, drain electrode and described second
The connection of the receiving end VBO；And
Second resistance, one end are connect with the grid of the second switch, other end ground connection.
The first switch tube is N-type field-effect tube in one of the embodiments, and the second switch is p-type field
Effect pipe.
The first receiving end VBO is that high level enables the receiving end VBO, the 2nd VBO in one of the embodiments,
Receiving end is that low level enables the receiving end VBO.
The control panel further includes phase inverter in one of the embodiments, is arranged in series in the 2nd receiving end VBO
Between the mainboard, for receiving the control signal, and the reverse signal of the control signal is exported to the 2nd VBO
Receiving end.
Based on the same inventive concept, present invention also provides a kind of driving methods of display device, comprising:
Receive the control signal that mainboard is sent；
According to the control signal, triggers a VBO in control panel in multiple VBO (V-By-One) receiving ends and connect
Receiving end；
The VBO signal that the mainboard is sent is received by the receiving end VBO after the triggering.
To sum up, this application provides a kind of display device and its driving methods.The display device include the mainboard and
The control panel.The mainboard is for sending VBO signal and control signal.The control panel is used to receive the control signal,
One in the multiple receiving ends VBO itself having is triggered according to the control signal, and passes through the receiving end VBO after triggering
Receive the VBO signal.In the application, there are multiple receiving ends VBO, the control panel is according to the control in the control panel
Signal, triggering and the matched receiving end VBO of mainboard receive the VBO signal by the receiving end VBO after the triggering, to keep away
Exempt from the picture exception caused by leading to the problem of because of the control panel and mainboard mismatch.
Detailed description of the invention
Fig. 1 is a kind of electrical structure schematic diagram of display device provided by the embodiments of the present application；
Fig. 2 is the electrical structure schematic diagram of another display device provided by the embodiments of the present application；
Fig. 3 is the electrical structure schematic diagram of another display device provided by the embodiments of the present application；
Fig. 4 is the flow diagram of the driving method of display device provided by the embodiments of the present application.
Drawing reference numeral explanation:
100 mainboards
200 control panels
210 the oneth receiving ends VBO
220 the 2nd receiving ends VBO
230 control circuits
231 first controlling branchers
232 second controlling branchers
240 phase inverters
R1 first resistor
R2 second resistance
M1 first switch tube
M2 second switch
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing to the application
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this Shen
Please.But the application can be implemented with being much different from other way described herein, those skilled in the art can be not
Similar improvement is done in the case where violating the application intension, therefore the application is not limited by following public specific implementation.
Table 1 is referred to, generally there are the following two kinds lattice currently as the interface VBO signal communicated between mainboard and control panel
Formula.
Table 1
From table 1 it follows that a subregion VBO signal has differences on format with two subregion VBO signals, therefore, such as
Fruit use and the matched receiving end VBO of a subregion VBO signal format receive two subregion VBO signals, alternatively, using with two subregions
The matched receiving end VBO of VBO signal format receives a subregion VBO signal, then will lead to picture exception.
For this purpose, the embodiment of the present application provides a kind of display device, referring to Figure 1, the display device includes mainboard 100
With control panel 200.The mainboard 100 is for sending VBO signal and control signal, and the control panel 200 is for receiving the control
Signal processed triggers one in the multiple receiving ends VBO itself having according to the control signal, and by triggering after
The receiving end VBO receives the VBO signal.
In the present embodiment, the control panel 200 includes the first receiving end VBO 210 and the 2nd receiving end VBO 220.Described
One receiving end VBO 210 is used to receive the VBO signal when the control signal is high level.2nd receiving end VBO
220 for receiving the VBO signal when the control signal is low level.
It is appreciated that the VBO signal corresponding to different-format, the control panel 200 should use matching VBO to receive
End is to receive.Therefore, the VBO signal corresponding to two kinds of different-formats passes through the first receiving end VBO 210 in the present embodiment
The subregion VBO signal and the two subregions VBO signal are received respectively with the 2nd VBO signal receiving end.When the mainboard 100
When exporting the subregion VBO signal, while the control signal exported is high level signal；When the mainboard 100 exports two points
When area's VBO signal, while the control signal exported is low level signal.Therefore, in the present embodiment, when the control signal is height
When level, the control panel 200 receives the subregion VBO signal by the first receiving end VBO 210.When the control
When signal is low level, the control panel 200 receives the two subregions VBO signal by the 2nd receiving end VBO 220.
In some embodiments provided by the present application, the control panel 200 further includes control circuit 230.The control circuit
230, for receiving the control signal, and when the control signal is high level, mention for the first receiving end VBO 210
It is described second when the control signal is low level to trigger the first receiving end VBO 210 for high level voltage
The receiving end VBO 220 provides high level voltage, to trigger the 2nd receiving end VBO 220.It is appreciated that described in being typically designed
First receiving end VBO 210 is that high level enables the receiving end VBO with the 2nd receiving end VBO 220, to avoid the control
Signal triggers the first receiving end VBO 210 and the 2nd receiving end VBO 220 simultaneously, then needs in the control panel 200
Middle setting control circuit 230, so that the control circuit 230 can individually trigger described first according to the control signal
The receiving end VBO 210 or the 2nd receiving end VBO 220, and then pass through the first receiving end VBO 210 of triggering or described the
Two receiving ends VBO 220 receive the VBO signal.
In some embodiments provided by the present application, the control circuit 230 includes the first controlling brancher 231 and the second control
Branch 232.First controlling brancher is used to mention when the control signal is high level for the first receiving end VBO 210
For high level voltage, to trigger the first receiving end VBO 210, so that the control panel 200 is received by the first VBO
End 210 receives the VBO signal.Second controlling brancher 232 is used for when the control signal is low level, is described the
Two receiving ends VBO 220 provide high level voltage, to trigger the 2nd receiving end VBO 220, so that the control panel 200 passes through
2nd receiving end VBO 220 receives the VBO signal.
It is appreciated that the control signal is weak electric signal, it is typically only used for the first controlling brancher of control and the second control
The conducting and disconnection of branch 232 are used without being supplied directly to the receiving end VBO as trigger voltage, to avoid because of voltage or electricity
Flowing through small leads to circuit burnout.Therefore, only switching signal is used as to use the control signal in the application, passes through the control
It is that the first receiving end VBO 210 provides high level voltage, and control described second that signal, which controls first controlling brancher,
Controlling brancher 232 is that the 2nd receiving end VBO 220 provides high level voltage.
In some embodiments provided by the present application, first controlling brancher 231 includes:
First switch tube M1 and first resistor R1, grid are connect with the mainboard 100, and drain electrode connects with the high level voltage
It connects, source electrode is connect with the first receiving end VBO 210；And
First resistor R1, be arranged in series in the first switch tube M1 grid and the first switch tube M1 drain electrode it
Between.
Second controlling brancher 232 includes:
Second switch M2, grid are connect with the mainboard 100, and source electrode is connect with the high level voltage, drain electrode and institute
State the connection of the 2nd receiving end VBO 220；And
Second resistance R2, one end are connect with the grid of the second switch M2, other end ground connection.
In some embodiments provided by the present application, the first switch tube M1 is N-type field-effect tube, the second switch
M2 is p-type field-effect tube.
In the present embodiment, the first data processing chip, first number are provided in the first VBO signal receiving module
It is connect by its high level enable pin with the source electrode of the N-type field-effect tube according to processing chip.The second data processing core
The second data processing chip is provided in piece, second data processing chip passes through its high level enable pin and the p-type
The drain electrode of field-effect tube connects.When the control signal is high level signal, the N-type field-effect tube conducting, the N-type field
The source electrode and drain electrode voltage of effect pipe is identical, is high level voltage, therefore the enable pin of first data processing chip
The voltage at place is also high level voltage, to trigger the first receiving end VBO 210, the control panel 200 is passed through
The first VBO signal control terminal receives the VBO signal.The p-type field-effect tube cut-off at this time can not be described second
The receiving end VBO 220 provides the high level voltage, and the 2nd receiving end VBO 220 is in off position.When the control
When signal is high level signal, the N-type field-effect tube cut-off can not provide the high electricity for the first receiving end VBO 210
Ordinary telegram pressure, the first receiving end VBO 210 are in off position.The p-type field-effect tube conducting, the p-type field-effect tube
Source electrode and drain electrode voltage it is identical, be high level voltage, therefore the electricity at the enable pin of second data processing chip
Pressure is also high level voltage, to trigger the 2nd receiving end VBO 220, enables the control panel 200 by described the
Two VBO signal control terminals receive the VBO signal.
Refer to Fig. 2, in some embodiments provided by the present application, the control panel 200 further includes phase inverter 240, series connection
It is set between the 2nd receiving end VBO 220 and the mainboard 100, for receiving the control signal, and exports the control
The reverse signal of signal processed gives the 2nd receiving end VBO 220.
It is appreciated that when triggering the first receiving end VBO 210 and the 2nd VBO reception using the control signal
It is all the triggering when controlling signal and being high level of enabled the 2nd receiving end VBO 220 of high level to avoid, then when holding 220
It needs that a phase inverter 240 is arranged between the 2nd receiving end VBO 220 and the mainboard 100.Pass through the phase inverter
240, when the control signal is high level signal, low level control signal is provided for the 2nd receiving end VBO 220, with
And when the control signal is low level signal, low level control signal is improved for the 2nd receiving end VBO 220.
Refer to Fig. 3, in some embodiments provided by the present application, the first receiving end VBO 210 is enabled for high level
The receiving end VBO, the 2nd receiving end VBO 220 are that low level enables the receiving end VBO.It is appreciated that when the first VBO connects
Receiving end 210 and the 2nd receiving end VBO 220 are respectively that high level enables the receiving end VBO and the enabled receiving end VBO of low level
When, it can directly be connect respectively with the mainboard 100, trigger the first receiving end VBO 210 and institute using the control signal
The 2nd receiving end VBO 220 is stated, do not need still further to design control circuit 230 or adds phase inverter 240, advantageously reduces first device
The usage quantity of part simplifies circuit design and reduces production cost.
Fig. 4 is referred to, based on the same inventive concept, present invention also provides a kind of driving methods of display device, comprising:
Step S100 receives the control signal that mainboard 100 is sent；
Step S200 triggers a VBO in control panel 200 in multiple receiving ends VBO according to the control signal
Receiving end；
Step S300 receives the VBO signal that the mainboard 100 is sent by the receiving end VBO after the triggering.
When mainboard 100 described in the present embodiment sends the VBO signal, while the control signal is exported, so that described
Control panel 200 is connect according to the receiving end VBO of the control signal enabling and the VBO Signal Matching by the VBO of the starting
Receiving end receives the control signal, to avoid causing picture abnormal due to VBO signal and VBO signal receiving end mismatch.
In the present embodiment, the control panel 200 includes the first receiving end VBO 210 and the 2nd receiving end VBO 220.Described
One receiving end VBO 210 is used to receive the VBO signal when the control signal is high level.2nd receiving end VBO
220 for receiving the VBO signal when the control signal is low level.
It is appreciated that the VBO signal corresponding to different-format, the control panel 200 should use matching VBO to receive
End is to receive.Therefore, the VBO signal corresponding to two kinds of different-formats passes through the first receiving end VBO 210 in the present embodiment
The subregion VBO signal and the two subregions VBO signal are received respectively with the 2nd VBO signal receiving end.When the mainboard 100
When exporting the subregion VBO signal, while the control signal exported is high level signal；When the mainboard 100 exports two points
When area's VBO signal, while the control signal exported is low level signal.Therefore, in the present embodiment, when the control signal is height
When level, the control panel 200 receives the subregion VBO signal by the first receiving end VBO 210.When the control
When signal is low level, the control panel 200 receives the two subregions VBO signal by the 2nd receiving end VBO 220.
The control panel 200 further includes control circuit 230, and the control circuit 230 is used to receive the control signal, and
And when the control signal is high level, high level voltage is provided for the first receiving end VBO 210, to trigger described the
One receiving end VBO 210 provides high level voltage when the control signal is low level for the 2nd receiving end VBO 220,
To trigger the 2nd receiving end VBO 220.
The control circuit 230 includes the first controlling brancher and the second controlling brancher 232.First controlling brancher is used for
When the control signal is high level, high level voltage is provided for the first receiving end VBO 210, to trigger described first
The receiving end VBO 210, so that the control panel 200 receives the VBO signal by the first receiving end VBO 210.Described
Two controlling branchers 232 are used for when the control signal is low level, provide high level electricity for the 2nd receiving end VBO 220
Pressure, to trigger the 2nd receiving end VBO 220, so that the control panel 200 receives institute by the 2nd receiving end VBO 220
State VBO signal.
It is appreciated that the control signal is weak electric signal, it is typically only used for the first controlling brancher of control and the second control
The conducting and disconnection of branch 232 are used without being supplied directly to the receiving end VBO as trigger voltage, to avoid because of voltage or electricity
Flowing through small leads to circuit burnout.Therefore, only switching signal is used as to use the control signal in the application, passes through the control
It is that the first receiving end VBO 210 provides high level voltage, and control described second that signal, which controls first controlling brancher,
Controlling brancher 232 is that the 2nd receiving end VBO 220 provides high level voltage.
First controlling brancher includes first switch tube M1, and grid is connect with the mainboard 100, drain electrode and the high electricity
Ordinary telegram pressure connection, source electrode are connect with the first receiving end VBO 210.Second controlling brancher 232 includes second switch
M2, grid are connect with the mainboard 100, and source electrode is connect with the high level voltage, drain electrode and the 2nd receiving end VBO 220
Connection.Wherein, the first switch tube M1 is N-type field-effect tube, and the second switch M2 is p-type field-effect tube.
It is described according to the control signal in some embodiments provided by the present application, trigger multiple VBO in control panel 200
A receiving end VBO in receiving end, comprising:
When the control signal is high level, high level voltage is provided by first switch tube M1 and is received to the first VBO
The first receiving end VBO 210 is triggered at end 210；
When the control signal is low level, high level voltage is provided by second switch M2 and is received to the 2nd VBO
The 2nd receiving end VBO 220 is triggered at end 220.
To sum up, this application provides a kind of display device and its driving methods.The display device include the mainboard and
The control panel.The mainboard is for sending VBO signal and control signal.The control panel is used to receive the control signal,
One in the multiple receiving ends VBO itself having is triggered according to the control signal, and passes through the receiving end VBO after triggering
Receive the VBO signal.In the application, there are multiple receiving ends VBO, the control panel is according to the control in the control panel
Signal, triggering and the matched receiving end VBO of mainboard receive the VBO signal by the receiving end VBO after the triggering, to keep away
Exempt from the picture exception caused by leading to the problem of because of the control panel and mainboard mismatch.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of display device characterized by comprising
Mainboard, for sending VBO (V-By-One) signal and control signal；
Control panel triggers in the multiple receiving ends VBO itself having for receiving the control signal according to the control signal
One, and pass through the receiving end VBO after triggering and receive the VBO signal.
2. display device as described in claim 1, which is characterized in that the control panel includes:
First receiving end VBO, for receiving the VBO signal when the control signal is high level；And
2nd receiving end VBO, for receiving the VBO signal when the control signal is low level.
3. display device as claimed in claim 2, which is characterized in that the control panel further includes control circuit, for receiving
The control signal, and when the control signal is high level, high level voltage is provided for the first receiving end VBO,
To trigger the first receiving end VBO, when the control signal is low level, high electricity is provided for the 2nd receiving end VBO
Ordinary telegram pressure, to trigger the 2nd receiving end VBO.
4. display device as claimed in claim 3, which is characterized in that the control circuit includes:
First controlling brancher, for providing high level electricity for the first receiving end VBO when the control signal is high level
Pressure, to trigger the first receiving end VBO, so that the control panel receives the VBO letter by the first receiving end VBO
Number；And
Second controlling brancher, for providing high level electricity for the 2nd receiving end VBO when the control signal is low level
Pressure, to trigger the 2nd receiving end VBO, so that the control panel receives the VBO letter by the 2nd receiving end VBO
Number.
5. display device as claimed in claim 4, which is characterized in that first controlling brancher includes:
First switch tube, grid are connect with the mainboard, and drain electrode is connect with the high level voltage, source electrode and the first VBO
Receiving end connection；And
First resistor is arranged in series between the grid of the first switch tube and the drain electrode of the first switch tube.
6. display device as claimed in claim 5, which is characterized in that second controlling brancher includes:
Second switch, grid are connect with the mainboard, and source electrode is connect with the high level voltage, drain electrode and the 2nd VBO
Receiving end connection；And
Second resistance, one end are connect with the grid of the second switch, other end ground connection.
7. display device as claimed in claim 6, which is characterized in that the first switch tube is N-type field-effect tube, described the
Two switching tubes are p-type field-effect tube.
8. display device as claimed in claim 2, which is characterized in that the first receiving end VBO is that the enabled VBO of high level connects
Receiving end, the 2nd receiving end VBO are that low level enables the receiving end VBO.
9. display device as claimed in claim 2, which is characterized in that the control panel further includes phase inverter, be arranged in series in
Between 2nd receiving end VBO and the mainboard, for receiving the control signal, and the reversed of the control signal is exported
Signal gives the 2nd receiving end VBO.
10. a kind of driving method of display device characterized by comprising
Receive the control signal that mainboard is sent；
According to the control signal, triggers a VBO in control panel in multiple VBO (V-By-One) receiving ends and receive
End；
The VBO signal that the mainboard is sent is received by the receiving end VBO after the triggering.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811412790.9A CN109410816A (en) | 2018-11-23 | 2018-11-23 | Display device and driving method thereof |
| PCT/CN2018/120849 WO2020103232A1 (en) | 2018-11-23 | 2018-12-13 | Display device and driving method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811412790.9A CN109410816A (en) | 2018-11-23 | 2018-11-23 | Display device and driving method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109410816A true CN109410816A (en) | 2019-03-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811412790.9A Pending CN109410816A (en) | 2018-11-23 | 2018-11-23 | Display device and driving method thereof |
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| CN (1) | CN109410816A (en) |
| WO (1) | WO2020103232A1 (en) |
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| CN113593492A (en) * | 2021-07-15 | 2021-11-02 | Tcl华星光电技术有限公司 | Driving system and driving method of display panel |
| CN115552894A (en) * | 2020-05-18 | 2022-12-30 | 青岛海信激光显示股份有限公司 | Laser projection system and starting method thereof |
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| CN113593492A (en) * | 2021-07-15 | 2021-11-02 | Tcl华星光电技术有限公司 | Driving system and driving method of display panel |
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| WO2020103232A1 (en) | 2020-05-28 |
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Application publication date: 20190301 |