CN110189679A - Display device - Google Patents
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- CN110189679A CN110189679A CN201910549797.3A CN201910549797A CN110189679A CN 110189679 A CN110189679 A CN 110189679A CN 201910549797 A CN201910549797 A CN 201910549797A CN 110189679 A CN110189679 A CN 110189679A
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- display
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- 238000010586 diagram Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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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)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention proposes a kind of display device.Display device includes multiple subregions, and each subregion includes multiple display pixels, control line and switch.Switch is electrically connected at respectively between the multiple display pixels and control line of the subregion, is controlled by the subregion enable signal of the subregion inner grid line to be switched on or disconnect.
Description
Technical field
The present invention relates to a kind of display devices, and the display device of display picture is updated more particularly to a kind of subregion.
Background technique
Due to the enlargement of display device, the development of high frequency and high parsingization, so that the power consumption of display quickly increases
Add.Therefore, the technology that subregion updates display picture is developed, the image data brush of normal frequency is carried out only for the subregion of part
Newly, and in other most of subregions it then carries out dropping low-frequency image data refreshing, to be effectively reduced the consumption of display device
Electricity.
However, prior art subregion update display picture display device, go together subregion shared partition control line, when point
When area updates display picture, the reciprocal effect of by stages is generated.When carrying out subregion update display picture, based on different subregions
Thin film transistor (TFT) (Thin-Film-Transistor, TFT) is connected (ON) or disconnects the state of (OFF) not in each display pixel
Together, the different leaky in by stages is generated.Above-mentioned leaky can make between different subregions, and display pixel generates not
Same optical appearance, and cause the display picture of monitor overall that frame crosstalk (cross-talk) occurs, and cause display matter
The reduction of amount.
Summary of the invention
The present invention provides a kind of display device of subregion update display picture, can be effectively reduced the power consumption of display device
Amount, and promote display quality.
Display device of the invention includes multiple subregions.Each subregion includes multiple display pixels, control line and switch.Control
Line is to transmit zonal control signal.Switch is electrically connected between multiple display pixels and control line, and is controlled by grid in subregion
The subregion enable signal of polar curve is to be switched on or disconnect.
Based on above-mentioned, the invention proposes the display devices that a kind of subregion updates display picture, by providing in subregion
Switch, and the Refresh Data frequency of subregion is determined by being turned on or off for switching.Since being turned on or off for switch is by dividing
The grid line in area is controlled, therefore can avoid influence of other subregions when Refresh Data, can be improved above-mentioned between different subregions
Frame crosstalk problem, it is ensured that display device subregion update display picture when be also able to maintain that good display quality.
Detailed description of the invention
Fig. 1 is the schematic diagram in the display device of the first embodiment of the present invention comprising multiple subregions.
Fig. 2 is the schematic diagram of one of subregion of multiple subregions of the first embodiment of the present invention.
Fig. 3 is that the present invention updates showing for the electric leakage difference for showing the display device of picture in different subregions with traditional subregion
It is intended to.
Fig. 4 is the schematic diagram of the circuit framework of the first embodiment of the present invention.
Fig. 5 is the schematic diagram of one of subregion of multiple subregions of the second embodiment of the present invention.
Wherein, appended drawing reference are as follows:
20: multiplexer circuit 30: gate drivers
40: source electrode driver 100: display device
400: display device CL1~CL3: control line
CLC: pixel capacitance CLP: cabling
GL1~GLM: grid line PX11~PXMN: display pixel
SL1~SLN: data line SW1, SW2: switch
T1, T2, TSW: transistor Z11~Z33: subregion
Specific embodiment
Fig. 1 is please referred to, Fig. 1 is the schematic diagram of the display device of the first embodiment of the present invention.Have in display device 100
It is arranged as multiple subregion Z11~Z33 of array, wherein subregion Z11~Z31 forms the first display line；Subregion Z12~Z32 is formed
Second display line；Subregion Z13~Z33 forms third display line.In this example it is shown that each subregion Z11 of device 100~
A plurality of gate lines G L1~GLM and a plurality of data line SL1~SLN, display device 100 and electricity is electrically connected in Z33
Property connection a plurality of control line CL1~CL3.Wherein, control line CL1~CL3 respectively with data line SL1~SLN of each subregion
It is disposed adjacent, control line CL1~CL3 respectively corresponds different display lines.In the present embodiment, shown schematically only with 9 subregion Z11
~Z33 is example, and in other embodiments of the present invention, the quantity of subregion is not limited thereto, and can arbitrarily be adjusted.
Please synchronize below referring to Fig.1 and Fig. 2, wherein Fig. 2 be multiple subregions of the first embodiment of the present invention wherein
The schematic diagram of one subregion.In the present embodiment, using subregion Z11 as example, subregion Z11 include multiple display pixel PX11~
PXMN and switch SW1.In detail, display pixel PX11~PX1N is connected to the control terminal of switch SW1 by gate lines G L1,
Display pixel PX1N~PXMN is electrically connected to the first end of switch SW1 by cabling CLP, and the second end of switch SW1 is then electrical
It is connected to control line CL1.
It is noted that the control terminal of switch SW1 is electrically connected the gate lines G L1 of subregion Z11, and according to gate lines G L1
On subregion enable signal carry out being turned on or off for control switch SW1, the zonal control signal of control line CL1 is imported into subregion
Z11。
It is Fan Li with display pixel PX1N in terms of the framework of display pixel PX11~PXMN, display pixel PX1N includes
Transistor T1, T2 and pixel capacitance CLC.The control terminal of transistor T1 is electrically connected to the second end of switch SW1, transistor T1
First end be electrically connected to the second end of transistor T2, the control terminal of transistor T2 is electrically connected to corresponding gate lines G L1,
The first end of transistor T2 is electrically connected to corresponding data line SLN, and pixel capacitance CLC is serially connected in the second of transistor T1
Between end and reference ground terminal.
In movement details, when the movement that subregion updates display picture carries out, to carry out display picture only for subregion Z11
Face is updated to example.Under data renewal model, gate lines G L1~GLM of corresponding subregion Z11 refreshes subregion Z11 according to first
Frequency acts to execute gated sweep, and data material SL1~SLN of corresponding subregion Z11 is held also according to the first refreshing frequency
Row data transfer activity, control line CL1 provides zonal control signal according to the first refreshing frequency, and holds so as to the first refreshing frequency
The display picture refreshing of row subregion Z11.On the other hand, other subregions Z12~Z33 work outside subregion Z11 is kept in data
Mode, and execute with the second relatively low refreshing frequency the display picture refreshing of other subregions Z12~Z33.Implement in the present invention
In example, the first refreshing frequency can be 60 hertz (Hz), and the second refreshing frequency then can be 1Hz.
Illustrate in details, when subregion Z11 is under data renewal model, switch SW1 can be according to point on gate lines G L1
Enable signal in area's is to be switched on or disconnect.When switch SW1 is switched on according to the subregion enable signal on gate lines G L1, control
Zonal control signal on line CL1 processed can be sent to display pixel PX11~PX1N by switch SW1 switched on, such as pass through
Cabling CLP is sent to the control terminal of the transistor T1 in display pixel PX1N, and the turn-on action by controlling transistor T1, with
Display pixel PX11~PX1N is set to execute Refresh Data movement.Zonal control letter under data renewal model, on control line CL1
Number can according to relatively high first refreshing frequency carry out display pixel PX11~PX1N Refresh Data movement.
It is opposite, when subregion Z11 in data retention mode when, the zonal control signal on control line CL1 is then according to phase
The second low refreshing frequency is acted, and is switched on as switch SW1 according to the subregion enable signal on gate lines G L1
When, the zonal control signal on control line CL1 can be sent to display pixel PX11~PX1N, example by switch SW1 switched on
It is such as sent to the control terminal of the transistor T1 in display pixel PX1N by cabling CLP, and passes through the conducting of control transistor T1
Movement, so that display pixel PX11~PX1N executes Refresh Data movement.In data retention mode, point on control line CL1
Area controls signal can carry out the Refresh Data movement of display pixel PX11~PX1N according to the second relatively low refreshing frequency.
By above-mentioned explanation it is known that by the way that switch SW1 is arranged in each subregion Z11~Z33, subregion can be made to update aobvious
Show that picture just for one or more of subregions, such as Z11, carries out display picture refreshing movement with the first refreshing frequency,
For other multiple subregions, such as Z12~Z33, display picture is carried out with the second refreshing frequency lower than the first refreshing frequency
Refresh activity, to reduce the power consumption of display device.
By the setting of the switch SW1 of subregion Z11, even if the shared control of multiple subregion Z11, Z21, Z31 on colleague
Line CL1 processed, when subregion Z11 work is when data maintain mode, by switch SW1 by the grid for corresponding to the second refreshing frequency
The control of line GL1 makes subregion Z11 not carried out what display picture refreshing acted by other subregions Z21 or Z31 with the first refreshing frequency
It influences, is still the Refresh Data movement for carrying out each display pixel PX11~PXMN with the second refreshing frequency.That is, passing through switch SW1
Setting, can avoid subregion Z11 and share a control line CL1 other subregions Z21, Z31 between because of refreshing frequency difference institute
Caused by reciprocal effect.
The switch SW1 of display device 100 of the invention can be by the construction of transistor TSW institute, the control terminal electricity of transistor TSW
Property is connected to gate lines G L1, and to receive subregion enable signal.The first end of transistor TSW is electrically connected to control line
CL1, the second end of transistor TSW be electrically connected in subregion Z11 in multiple display pixel PX11~PXMN transistor (such as
Transistor T1) control terminal.Transistor TSW and transistor T1, T2 can be the transistor of identical kenel.Therefore, of the invention
The switch SW1 of display device 100, can be in matrix (Array) substrate manufacturing process of display device, simultaneously with matrix base plate
It completes, is not required to additional processing procedure cost or material consumption.
Display device 100 of the invention, when a subregion Z11 in each subregion Z11~Z33 works in data renewal model
When, subregion Z11 work at the first refreshing frequency (such as 60Hz), and correspond to the first refreshing frequency switch SW1 be switched on or
It disconnects.When in each subregion Z11~Z33 other subregion Z12~Z33 work in keeping data mode, each subregion Z12~Z33
Work is at the second refreshing frequency (such as 1Hz).Because the first refreshing frequency is greater than the second refreshing frequency, only point of part
Area (such as subregion Z11) carries out display picture refreshing using the first refreshing frequency and acts.And other subregion Z12~Z33, with
Lower second refreshing frequency carries out the movement of display picture refreshing and enters energy-efficient power consumption state, therefore can reduce power consumption.
In Fig. 2, the control terminal of switch SW1 is electrically connected the gate lines G L1 of subregion Z11, i.e., subregion enable signal is by subregion
The gate lines G L1 of Z11 is provided, but the present invention is not limited thereto.The control terminal of switch SW1 can be electrically connected subregion Z11
Any grid line, that is to say, that subregion enable signal can by among gate lines G L1~GLM in each subregion Z11 appoint
What grid line is provided.
Fig. 3 is for illustrating that the subregion of the present invention and prior art update the display device of display picture in different subregions
The schematic diagram for difference of leaking electricity.It please be synchronize below referring to Fig. 2 and Fig. 3, wherein in each subregion Z11~Z33 of display device 100,
Only subregion Z22 be with the first refreshing frequency (such as 60Hz) work other than data renewal model, viewing area Z22 other are each
Subregion (such as Z12, Z33) is then to be worked with the second refreshing frequency (such as 1Hz) in keeping data mode.In Fig. 3, subregion
Z22 is in data renewal model, when subregion Z22 carries out display picture refreshing with the first refreshing frequency (such as 60Hz), subregion Z22
Middle connected control line CL2, each gate lines G L1~GLM and each data line SL1~SLN are corresponding first refreshing frequencies
Rate works, i.e. each pixel capacitance CLC to display pixel PX11~PXMN each in subregion Z22, with the first refreshing frequency into
Row Refresh Data.
In Fig. 3, subregion Z12 is in keeping data mode, and subregion Z12 is shown with the second refreshing frequency (such as 1Hz)
When showing picture refreshing, it is corresponding second that each gate lines G L1~GLM is connected in subregion Z12 with each data line SL1~SLN
Refreshing frequency works, but control line CL2 with the subregion Z22 in data renewal model because share, control line
CL2 is corresponding first refreshing frequency (such as 60Hz).Although subregion Z12 and subregion Z22 uses identical control line CL2,
The control terminal of switch SW1 is the gate lines G L1 for being electrically connected at subregion Z12, therefore the switch SW1 of subregion Z12 is also corresponding the
Two refreshing frequencys and be switched on or disconnect.So subregion Z12 has separated subregion Z22 according to the first refreshing frequency by switch SW1
The influence of performed data update action.
In this way, on subregion Z12 and subregion Z22 and subregion Z33 display image between optical appearance on difference
Phenomena such as being lowered, there will not be frame crosstalk generation.Therefore, display device of the invention is carrying out subregion update display
When picture, good display quality can be still maintained.
In addition, the present embodiment is illustrated in each display pixel PX11~PXMN comprising 2 electric body body T1, T2, but this hair
It is bright to be not limited.I.e. the present invention may also apply to include 2 or more transistors in each display pixel PX11~PXMN.
Fig. 4 is the schematic diagram of the circuit framework of the first embodiment of the present invention.As shown in figure 4, subregion of the invention updates
Show that the display device 400 of picture has multiplexer circuit 20, gate drivers 30 and source electrode driver 40.Multiplexer circuit 20
Output end be electrically connected each control line CL1~CL3 and each data line SL1~SLN.One in each subregion Z11~Z33
A subregion, such as subregion Z11 work in data renewal model, the control line CL1 of the output end of corresponding multiplexer circuit 20
It works according to the first refreshing frequency.When other subregions, such as Z12, Z13 work are in keeping data mode, corresponding more
Control line CL2, CL3 of the output end of work device circuit 20 work according to the second refreshing frequency.
In addition, the above embodiments are with a multiplexer circuit 20 for example, but, multiplexer circuit 20 can be corresponded to point
The quantity in area arbitrarily adjusts, or multiplexer circuit 20 is incorporated in multiple source electrode drivers 40 and is not separately provided.
On the other hand, each gate lines G L1~GLM is electrically connected in the output end of gate drivers 30, and works as subregion
Z11 works in data renewal model, and the output end of the gate drivers 30 of corresponding subregion Z11 works in the first refreshing frequency,
When other subregions, such as subregion Z21, subregion Z31 work correspond to the grid of subregion Z21, subregion Z31 in keeping data mode
The output end of driver 30 works in the second refreshing frequency.
In addition, the output end of source electrode driver 40 is respectively and electrically connected to each data line SL1~SLN, and work as each point
Area Z11 works in data renewal model, and the output end work of the source electrode driver 40 of corresponding subregion Z11 refreshes frequency first
Rate, when other subregions, such as the work of subregion Z12, subregion Z13 subregion correspond to subregion Z12, subregion Z13 in keeping data mode
Source electrode driver 40 output end work in the second refreshing frequency.
The second above-mentioned refreshing frequency is frequency used in keeping data mode, and embodiment is to use 1Hz to carry out
Data remain example.But, as long as the second refreshing frequency is less than the first refreshing frequency.For example, if each display pixel
The turn-off characteristic of the transistor T1 or transistor T2 of PX11~PXMN are bad and leak electricity larger, it is contemplated that will be in keeping data mode
The frequency used is improved from 1Hz to 5Hz or higher, to ensure that subregion updates the display quality of display picture.
Fig. 5 is the schematic diagram of one of subregion Z11 of multiple subregion Z11~Z33 of the second embodiment of the present invention.With
The different embodiment of Fig. 2 is that each subregion Z11~Z33 is provided with switch SW2 more.In second embodiment, for it is first real
It applies the identical part of example to mark identical reference number and omit the description, the difference with first embodiment is illustrated.
As shown in figure 5, two switches in each subregion Z11~Z33, are respectively set in the second embodiment of the present invention, that is, open
Close SW1 and switch SW2.The control line CL1, switch SW1 of subregion Z11 is electrically connected in the first end of switch SW1 and switch SW2
The control terminal of the transistor T1 of each display pixel PX11~PXMN in subregion Z11 is electrically connected with the second end of switch SW2,
The control terminal of switch SW1 is electrically connected the gate lines G L1 of subregion Z11, and the control terminal of switch SW2 is electrically connected the grid of subregion Z11
Polar curve GL2.
Therefore, in the second embodiment of the present invention, pass through the common driving subregion of two switches of switch SW1 and switch SW2
The control terminal of each transistor T1 of each display pixel PX11~PXMN in Z11.In the gate lines G L1 and grid line of subregion Z11
GL2 is connected in the case where switch SW1 and switch SW2 is connected, and the cabling CLP and each display pixel PX11 in subregion Z11~
The control terminal of each transistor T1 of PXMN will can have the longer time quasi- with the voltage of charge or discharge to control line CL1
Position.When the voltage quasi position of the control terminal of each transistor T1 is consistent with the voltage quasi position of control line CL1, it can be ensured that each transistor
T1 regular event, more effectively can completely update the image data of pixel capacitance CLC.
In Fig. 5, the control terminal of switch SW1 is electrically connected the control terminal electricity of the first grid polar curve GL1, switch SW2 of subregion Z11
Property connection subregion Z11 second gate line GL2, but the present invention is not limited thereto.The control terminal of switch SW1 and switch SW2
Any two grid lines in subregion Z11 can be electrically connected.
In the second embodiment of the present invention, the control of cabling CLP and each transistor T1 are ensured by two switches SW1, SW2
The voltage quasi position at end processed, it is ensured that each transistor T1 regular event more effectively can completely update the image number of each pixel capacitance CLC
According to.But the present invention is not limited thereto.It can make each display pixel PX11 in subregion Z11 by two or more switches
The voltage quasi position of the control terminal of each transistor T1 of~PXMN, closer to the voltage quasi position of control line CL1.
In conclusion subregion of the invention updates the display device of display picture by increasing setting one in each subregion
Switch, it is ensured that each by stages does not have interactive influence.As long as each subregion in keeping data mode, internal each crystalline substance
Body pipe is all the state of corresponding second refreshing frequency, and the electric leakage of the pixel capacitance of each display pixel is small.So keeping mould in data
Phenomena such as each by stages in formula, does not have the difference in optical appearance, i.e., does not have frame crosstalk generation.Therefore, of the invention
The display device of embodiment can still maintain good display quality when carrying out subregion update display picture.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention., any technical field
Middle tool usually intellectual, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, thus it is of the invention
Protection scope should be defined by the scope of the appended claims.
Claims (10)
1. a kind of display device characterized by comprising
Multiple subregions correspond to a plurality of grid line, and respectively the subregion includes:
Multiple display pixels；
Control line, to transmit zonal control signal；And
Switch, is electrically connected between multiple display pixels and the control line, is controlled by the subregion enable letter of the subregion inner grid line
Number be switched on or disconnect.
2. the display device as described in claim 1, which is characterized in that respectively those display pixels in the subregion are arranged in more
A display line and multiple displays column, those display column are respectively and electrically connected to a plurality of grid line, those display lines are electrical respectively
Connect a plurality of data line.
3. the display device as described in claim 2, which is characterized in that respectively the display pixel includes:
The first transistor, control terminal are electrically connected to the second end of the switch；
Second transistor, there is first end to be electrically connected to the data line, and the first end of the first transistor is electrically connected
To the second end of the second transistor, the control terminal of the second transistor is electrically connected to corresponding respectively grid line；And
Pixel capacitance is serially connected in the second end of the first transistor and with reference between ground terminal.
4. the display device as described in claim 2, which is characterized in that the subregion enable signal is by those in the respectively subregion
One of grid line is provided.
5. the display device as described in claim 1, which is characterized in that the switch is transistor, the first end of the transistor
It is electrically connected to the control line, the second end of the transistor is electrically connected to the control terminal of the first transistor, the transistor
Control terminal receives the subregion enable signal.
6. the display device as described in claim 1, which is characterized in that when the work of each subregion is in data renewal model,
The corresponding switch is switched on, and respectively subregion work is in the first refreshing frequency, when respectively the subregion works in keeping data mode
When, the corresponding switch is disconnected, and respectively subregion work in the second refreshing frequency, wherein first refreshing frequency be greater than this
Two refreshing frequencys.
7. the display device as described in claim 6, which is characterized in that further include:
Multiplexer circuit, the multiplexer circuit are electrically connected the control line.
8. the display device as described in claim 7, which is characterized in that when respectively the subregion works in the data renewal model
When, the control line of the corresponding multiplexer circuit works according to first refreshing frequency, wherein when the work of each area is at this
When keeping data mode, the corresponding control line being somebody's turn to do works according to second refreshing frequency.
9. the display device as described in claim 6, which is characterized in that first refreshing frequency is 60 hertz, second brush
New frequency is 1 hertz.
10. the display device as described in claim 1, which is characterized in that further include:
Those grid lines are electrically connected in multiple gate drivers, to provide multiple gate drive signals respectively；And
Multiple source electrode drivers are respectively and electrically connected to those data lines, to provide multiple source drive signals respectively.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862717260P | 2018-08-10 | 2018-08-10 | |
| US62/717,260 | 2018-08-10 | ||
| TW108110490A TWI697882B (en) | 2018-08-10 | 2019-03-26 | Display apparatus |
| TW108110490 | 2019-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110189679A true CN110189679A (en) | 2019-08-30 |
| CN110189679B CN110189679B (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910549797.3A Active CN110189679B (en) | 2018-08-10 | 2019-06-24 | Display device |
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| Country | Link |
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| CN (1) | CN110189679B (en) |
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| CN113568232A (en) * | 2021-09-27 | 2021-10-29 | 南京初芯集成电路有限公司 | Pixel unit, array substrate, driving method, liquid crystal panel and liquid crystal display screen |
| WO2022178811A1 (en) * | 2021-02-26 | 2022-09-01 | 京东方科技集团股份有限公司 | Display panel, display apparatus, and driving method |
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| Publication number | Publication date |
|---|---|
| CN110189679B (en) | 2022-07-01 |
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