CN108428427A - Display panel and driving method thereof - Google Patents
Display panel and driving method thereof Download PDFInfo
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- CN108428427A CN108428427A CN201810228582.7A CN201810228582A CN108428427A CN 108428427 A CN108428427 A CN 108428427A CN 201810228582 A CN201810228582 A CN 201810228582A CN 108428427 A CN108428427 A CN 108428427A
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- scan
- omission
- circuit group
- drive circuit
- display
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 8
- 101100313728 Vitis vinifera VINST1 gene Proteins 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A display panel and a driving method thereof, the display panel includes: the display device comprises a pixel array and a control unit, wherein the pixel array comprises a display area and an omission area, the display area comprises a plurality of first scanning lines, and the omission area comprises a plurality of second scanning lines; the scanning driver is coupled with the pixel array and comprises a display scanning driving circuit group and an omitted scanning driving circuit group, wherein the display scanning driving circuit group is used for driving the first scanning lines, and the omitted scanning driving circuit group is used for driving the second scanning lines; and a timing control circuit coupled to and controlling the scan driver. In the normal mode, the first start signal is used to control and sequentially update the first scan lines and the second scan lines. In the refresh-omitted mode, the first scan lines are controlled to be refreshed by a second start signal, and the second scan lines are not refreshed by the scan-omitted driving circuit group.
Description
Technical field
The present invention relates to a kind of display panel and its driving methods.
Background technology
In current human lives, it is substantially increased come the demand transmitted into row information using display device.However aobvious
In showing device, if the power consumption of display device is excessive, the electronic device using battery as power source will be unfavorable for.Reduce picture
Renewal frequency be being usually used in the technological means of province's electrical efficiency, but the problem of be also possible to cause film flicker simultaneously.It is another
Aspect, if improving frame updating frequency using the operating frequency for improving scanner driver to solve film flicker, this will
Increase the power consumption of display device.
So a kind of display panel of the application proposition and its driving method, to improve existing issue or other problems.
Invention content
The present invention in relation to a kind of display panel, including：Region is omitted in one pel array, including a display area with one, should
Display area includes a plurality of first scan line, which includes a plurality of second scan line；Scan driver couples the picture
Pixel array, the scanner driver include that a display scan drive circuit group omits scan drive circuit group, the display with one
Scan drive circuit group to drive these the first scan lines, the omission scan drive circuit group to drive these second
Scan line；And a sequential control circuit, it couples and controls the scanner driver.Under a normal mode, timing control electricity
The first initial signals of Lu Yiyi control the display scan drive circuit group and the omission scan drive circuit group with sequentially more
These new first scan lines and these second scan lines；And in the case where one omits renewal model, the sequential control circuit is with one the
Two initial signals control the display scan drive circuit group to update these first scan lines but control the omission turntable driving
Circuit group is not to update these the second scan lines, scan frequency the sweeping less than second initial signal of first initial signal
Retouch frequency.
The present invention also relates to a kind of driving method of display panel, which includes a display scan drive circuit group
Group omits scan drive circuit group with one, which includes：Under a normal mode, the display turntable driving electricity is controlled
Road group and the omission scan drive circuit group, sequentially update the display panel with one first operating frequency a plurality of first are swept
Retouch line and a plurality of second scan line；And in the case where one omits renewal model, the display scan drive circuit group is controlled, with one the
Two operating frequencies update these the first scan lines, but control the omission scan drive circuit group not update these the second scannings
Line, wherein second operating frequency is identical to first operating frequency.
The present invention more in relation to a kind of display panel, including：Region is omitted in one pel array, including a display area with one；
Scan driver couples the pel array, which includes that a display scan drive circuit group sweeps with an omission
Driving circuit group is retouched, the display scan drive circuit group is to drive the display area, omission scan drive circuit group
Group is driving the omission region；And a sequential control circuit, it couples and controls the scanner driver.In a normal mode
Under, which controls the display scan drive circuit group with the omission scan drive circuit group in normal behaviour
Make；And in the case where one omits renewal model, which controls the display scan drive circuit group in normal operating,
And the sequential control circuit controls the omission scan drive circuit group in stopping operation.
More preferably understand in order to which the above-mentioned and other aspect to the present invention has, special embodiment below, and coordinates attached drawing detailed
Carefully it is described as follows：
Description of the drawings
Fig. 1 shows the functional block diagram of the display panel according to one embodiment of the application.
Fig. 2A to Fig. 2 D shows the various detailed circuit diagrams of the shift register according to a embodiment of the present application.
Fig. 3 A show the driving schematic diagram according to the normal mode of the embodiment of the present application.
Fig. 3 B show the driving schematic diagram of the omission renewal model according to the embodiment of the present application.
Fig. 4 A to Fig. 4 C show the signal waveforms of the normal mode and omission renewal model according to the embodiment of the present application.
【Symbol description】
100：Display panel 110：Pel array
120：Scanner driver 130：Sequential control circuit
L1-LN：Scan line
EN1：He first enable signal EN2：The second enable signal
VST1：First initial signal VST2：Second initial signal
SR1-SR14：Shift register
Specific implementation mode
The technical terms of this specification are subject to reference to the idiom of the art as this specification has part term
Illustrate or define, the explanation of the part term be subject to this specification explanation or definition.Each embodiment of the disclosure is distinguished
With one or more technical characteristics.Under the premise of may implement, those skilled in the art optionally implement any implementation
All or part of technical characteristic in example, or all or part of technical characteristic in these embodiments is selectively subject to group
It closes.
Fig. 1 shows the functional block diagram of the display panel according to one embodiment of the application.As shown in Figure 1, display panel 100
Including：Pel array 110, scanner driver 120 and sequential control circuit 130.
Pel array 110 includes multiple scan line L1-LN (N is positive integer).These scan lines L1- of pel array 110
LN can be divided into display area and omit region.The display area includes a plurality of first scan line, which includes a plurality of
Second scan line.How to define display area will be in beneath explanation with omission region.
Scanner driver 120 is coupled to pel array 110.Scanner driver 120 is located at the both sides of pel array 110.It sweeps
It includes display scan drive circuit group and omission scan drive circuit group, the display scan drive circuit to retouch driver 120
Group is coupled to these the first scan lines, which is coupled to these the second scan lines.How to define
Display scan drive circuit group will illustrate down below with scan drive circuit group is omitted.
Sequential control circuit 130 couples and controls the scanner driver 120.Sequential control circuit 130 exports the first enable
Signal EN1, the second enable signal EN2, the first initial signal VST1 and the second initial signal VST2 are to control the scanner driver
120。
Fig. 2A to Fig. 2 D shows the various detailed circuit diagrams of the shift register according to a embodiment of the present application.The bottom of for convenience of
Also it explains, the type of the shift register of Fig. 2A is known as SRa, the type of the shift register of Fig. 2 B is known as SRb, by Fig. 2 C
The type of shift register be known as SRc, the type of the shift register of Fig. 2 D is known as SRd.
The type (SRa) of the shift register of Fig. 2A receives two input signals (N-1 and ST), and provides an output letter
Number (DO), but SRa is controlled by a signal (EN).The type (SRb) of the shift register of Fig. 2 B receives two input signals
(N-1 and ST), and an output signal (DO) is provided, but SRb is controlled by two signals (EN1 and EN2).The displacement of Fig. 2 C is posted
The type (SRc) of storage receives an input signal (ST), and provides an output signal (DO), but SRc is controlled by signal EN
System.The type (SRd) of the shift register of Fig. 2 D receives an input signal (ST), and provides an output signal (DO).
Fig. 3 A show the driving schematic diagram according to the normal mode of the embodiment of the present application.Fig. 3 B are shown to be implemented according to the application
The driving schematic diagram of the omission renewal model of example.Fig. 4 A to Fig. 4 C show the normal mode according to the embodiment of the present application with omission more
The signal waveforms of new model.For convenience of description, down below, with positioned at the scanner driver 120 of certain side of pel array 110
Including being explained for shift register SR1-SR14, but works as and know that the application is not limited to this.Also that is, it is possible in the application one
In embodiment, in scanner driver 120, which includes shift register SR5-SR7 and SR14,
And the omission scan drive circuit group includes shift register SR1-SR4 and SR8-SR13, but work as and know that the application is not limited
In this.
In one embodiment of the application, shift register SR1 and SR8 is with type (SRc) institute of the shift register of Fig. 2 C
Implement, shift register SR5 and SR14 is implemented with the type (SRb) of the shift register of Fig. 2 B, shift register SR2-
SR4, SR6-SR7 and SR9-SR13 are implemented with the type (SRd) of the shift register of Fig. 2 D.But works as and know that the application is not limited
In this, in the application in other possible embodiments, it is possibility to have other different circuit implementations, this is all in the application spirit
In range.
Following table shows in one embodiment of the application that the operation mode of display panel 100 is controlled by first and second enable
Signal EN1 and EN2.
| Operation mode | EN2 enables | EN2 disables | EN2 switches |
| EN1 enables | Quiescing | Omit renewal model | Quiescing |
| EN1 disables | Normal mode | Quiescing | Quiescing |
| EN1 switches | Quiescing | Quiescing | Multirate (Multi-frame rate) |
In upper table, " quiescing " refers to, cannot be with this kind of pattern when controlling the display panel 100 operation mode
To control.For example, he first enable signal EN1 and the second enable signal EN2 enables simultaneously, then belong to " quiescing ", remaining can
According to analogizing.
(he first enable signal EN1 is enable (such as VGH), and the second enable signal EN2 is then disability in the normal mode
(or being non-start up), such as VGL), sequential control circuit 130 controls the scanner driver 120 with the first initial signal VST1
Shift register SR1 so that shift register SR1 outputs signal to the shift register SR2 of next stage, and so on.Also
That is, in the normal mode, under the control of sequential control circuit 130, shift register SR1-SR14 is all under normal operating,
To drive pel array 110.Also that is, when he first enable signal EN1 is enable, and the second enable signal EN2 is then to be moved when disabling
Bit register SR1-SR14 is all under normal operating.In the normal mode, it is controlled by he first enable signal EN1, shift LD
Device SR8 is also at normal operating.In the normal mode, under the control of sequential control circuit 130, pel array 110 these
Scan line L1-LN can all be driven normally and show.
In the case where omitting renewal model (he first enable signal EN1 is disability, and the second enable signal EN2 is then enable), when
Sequence control circuit 130 controls the shift register SR5 of the scanner driver 120 with the second initial signal VST2 so that displacement is posted
Storage SR5 outputs signal to the shift register SR6 of next stage, and shift register SR6 outputs signal to the displacement of next stage
Register SR7, but shift register SR7 outputs signal to shift register SR14 (rather than shift register SR8, and displacement is posted
Storage SR8 is in stop operational mode).In the case where omitting renewal model, under the control of sequential control circuit 130, when first
Enable signal EN1 is disability, and when the second enable signal EN2 is enable, shift register SR5-SR7 and SR14 are all in normal
Under operation, but remaining shift register SR1-SR4 and SR8-SR13 is then in stop operational mode (to save display panel
100 power consumption).Also that is, in the case where omitting renewal model, under the control of sequential control circuit 130, pel array 110
Among these scan lines L1-LN, these scan lines for being relevant to and (being coupled to) shift register SR5-SR7 and SR14 can be normal
It drives and shows, but these scan lines for being relevant to and (being coupled to) shift register SR1-SR4 and SR8-SR13 then will not be by more
Newly.
Also that is, in the embodiment of the present application, in the case where omitting renewal model, (he first enable signal EN1 is disability, and second causes
Energy signal EN2 is then enable), which controls display turntable driving electricity with one second initial signal VST2
Road group is to update these first scan lines but control the omission scan drive circuit group not update these the second scan lines.
Wherein, as shown in Figure 4 A, the scan frequency of first initial signal VST1 is less than the scan frequency of second initial signal VST2.
Also that is, in the case where omitting renewal model, under the control of sequential control circuit 130, the display scan drive circuit group updating this
A little first scan lines (also that is, in the case where omitting renewal model, display area can be still updated), but omission scan drive circuit group
Group does not update these the second scan lines then (also that is, in the case where omitting renewal model, omitting region will not be updated).
Also that is, in the embodiment of the present application, under the normal mode, which has one first with the omission region
Picture update rate.Under the omission renewal model, the picture update rate in the omission region is substantially 0, and the display area has
One second picture update rate, first picture update rate are substantially less than the second picture update rate.For example, when the first picture update rate
When being 60Hz, for Fig. 3 B, the second picture update rate is 60* (14/4)=210Hz.
In the embodiment of the present application, when driving display panel 100 in the normal mode, the display scan drive circuit is controlled
Group and the omission scan drive circuit group sequentially update a plurality of first scanning of the display panel with one first operating frequency
Line and a plurality of second scan line, wherein the display scan drive circuit group drives/update these the first scan lines, and the province
Slightly scan drive circuit group drives/updates these the second scan lines.In addition, when driving display panel 100 is omitting update mould
Under formula, controls the display scan drive circuit group and these the first scan lines are updated with one second operating frequency, but control the province
Slightly scan drive circuit group is not to update these the second scan lines, wherein second operating frequency is identical to first operation
Frequency, here, operating frequency for example refers to the operating frequency of the shift register SR1-SR14 in Fig. 3 A and Fig. 3 B.Namely
It says, in the embodiment of the present application, when switching between normal mode and omission renewal model, does not change shift register
The operating frequency of SR1-SR14.Also that is, the embodiment of the present application is not by the operating frequency for improving shift register SR1-SR14
To improve the picture update rate omitted under renewal model.
Also that is, in the display panel 100 of the embodiment of the present application, in the normal mode, the sequential control circuit 130 control
The display scan drive circuit group of the scanner driver 120 is with the omission scan drive circuit group in normal operating；With
And in the case where omitting renewal model, which controls the display scan drive circuit group of the scanner driver 120
Group in normal operating, and the sequential control circuit 130 control the scanner driver 120 the omission scan drive circuit group in
It stops operation (save the power consumption of display panel 100).
As described above, in the display panel of the embodiment of the present application, omitted under renewal model when switching to, even if not having
The picture update rate of the operating frequency of change/raising scanner driver, display area can be still enhanced, so, it can reduce
Film flicker.In the display panel of the embodiment of the present application, omitted under renewal model when switching to, at least part of scanning
Driver is in stop operational mode, and the power consumption of display area can be reduced.
In conclusion although the present invention is disclosed as above with embodiment, however, it is not to limit the invention.Institute of the present invention
Belong to field technology personnel without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Therefore, of the invention
Protection domain when regard the appended claims confining spectrum subject to.
Claims (7)
1. a kind of display panel, including：
Pel array, including display area and omission region, the display area include a plurality of first scan line, omission region packet
Include a plurality of second scan line；
Scanner driver couples the pel array, which includes that display scan drive circuit group is scanned with omission
Driving circuit group, the display scan drive circuit group is to drive these the first scan lines, the omission scan drive circuit
Group is driving these the second scan lines；And
Sequential control circuit couples and controls the scanner driver,
Wherein in the normal mode, the sequential control circuit with the first initial signal control the display scan drive circuit group with
The omission scan drive circuit group is sequentially to update these first scan lines and these second scan lines；And
In the case where omitting renewal model, the sequential control circuit with the second initial signal control the display scan drive circuit group with
It updates these first scan lines but controls the omission scan drive circuit group not update these the second scan lines, the first
The scan frequency of beginning signal is less than the scan frequency of second initial signal.
2. display panel as described in claim 1, wherein
Under the normal mode, which has the first picture update rate with the omission region；And
Under the omission renewal model, the picture update rate in the omission region is substantially 0, and the display area has the second picture
Turnover rate, first picture update rate are substantially less than the second picture update rate.
3. a kind of driving method of display panel, which includes display scan drive circuit group and omission turntable driving
Circuit group, the driving method include：
In the normal mode, the display scan drive circuit group and the omission scan drive circuit group are controlled, with the first behaviour
Working frequency sequentially updates a plurality of first scan line of the display panel and a plurality of second scan line；And
In the case where omitting renewal model, the display scan drive circuit group is controlled, updating these with the second operating frequency first sweeps
Line is retouched, but controls the omission scan drive circuit group not update these the second scan lines, wherein the second operating frequency phase
It is same as first operating frequency.
4. driving method as claimed in claim 3, wherein
Under the normal mode, the display scan drive circuit group and the omission turntable driving electricity are controlled with the first initial signal
Road group, sequentially to update these first scan lines and these second scan lines；And
Under the omission renewal model, which is controlled with the second initial signal, with update these
Scan line, but the omission scan drive circuit group is controlled not update these the second scan lines, first initial signal is low
Frequency domain second initial signal.
5. driving method as claimed in claim 3, wherein
Under the normal mode, to drive these first scan lines and this with the first drive signal of the first picture update rate
A little second scan lines；And
Under the omission renewal model, to drive these the first scan lines with the second drive signal of the second picture update rate
But these second scan lines are not driven, which is substantially less than the second picture update rate, these second scannings
The picture update rate of line is substantially 0.
6. a kind of display panel, including：
Pel array, including display area and omission region；
Scanner driver couples the pel array, which includes that display scan drive circuit group is scanned with omission
Driving circuit group, the display scan drive circuit group is to drive the display area, the omission scan drive circuit group
To drive the omission region；And
Sequential control circuit couples and controls the scanner driver,
Wherein in the normal mode, which controls the display scan drive circuit group and the omission turntable driving
The normal operating of circuit group；And
In the case where omitting renewal model, which controls the display scan drive circuit group in normal operating, and should
Sequential control circuit controls the omission scan drive circuit group and stops operation.
7. display panel as claimed in claim 6, wherein
Under the normal mode, which has the first picture update rate with the omission region；And
Under the omission renewal model, the picture update rate in the omission region is substantially 0, and the display area has the second picture
Turnover rate, first picture update rate are substantially less than the second picture update rate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107103302A TWI647686B (en) | 2018-01-30 | 2018-01-30 | Display panel and driving method thereof |
| TW107103302 | 2018-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108428427A true CN108428427A (en) | 2018-08-21 |
Family
ID=63158537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228582.7A Pending CN108428427A (en) | 2018-01-30 | 2018-03-20 | Display panel and driving method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108428427A (en) |
| TW (1) | TWI647686B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309316A (en) * | 2019-07-26 | 2021-02-02 | 三星显示有限公司 | Display device |
| US12033567B2 (en) | 2019-07-26 | 2024-07-09 | Samsung Display Co., Ltd. | Display device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755854B (en) * | 2020-09-11 | 2022-02-21 | 奇景光電股份有限公司 | Display apparatus and display circuit |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI647686B (en) | 2019-01-11 |
| TW201933319A (en) | 2019-08-16 |
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Application publication date: 20180821 |