CN206564122U - Driving chip and display device for display panel - Google Patents
Driving chip and display device for display panel Download PDFInfo
- Publication number
- CN206564122U CN206564122U CN201720240928.6U CN201720240928U CN206564122U CN 206564122 U CN206564122 U CN 206564122U CN 201720240928 U CN201720240928 U CN 201720240928U CN 206564122 U CN206564122 U CN 206564122U
- Authority
- CN
- China
- Prior art keywords
- display panel
- source electrode
- driving chip
- electrode driver
- gray scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003116 impacting effect Effects 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000018734 Sambucus australis Nutrition 0.000 description 1
- 244000180577 Sambucus australis Species 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- OGFXBIXJCWAUCH-UHFFFAOYSA-N meso-secoisolariciresinol Natural products C1=2C=C(O)C(OC)=CC=2CC(CO)C(CO)C1C1=CC=C(O)C(OC)=C1 OGFXBIXJCWAUCH-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model discloses a kind of driving chip for display panel, including：Time schedule controller, for providing clock signal；Gate drivers, are connected with the display panel, for providing grid voltage to the display panel；Source electrode driver, for providing gray scale voltage to the display panel by first path or the second path under first mode or second mode.The utility model between source electrode driver and display panel by setting switch selection circuit and discharge circuit, realize and different gray scale voltages are provided under different mode of operations to display panel, can be in the case where needing impacting with high pressure, directly choose corresponding path and corresponding gray scale voltage is provided, repair process can be carried out to there is the display panel of Domain phenomenons, the reliability of display device is improved, cost is reduced.
Description
Technical field
The utility model belongs to display technology field, more particularly, to a kind of driving chip for display panel
Display device.
Background technology
Because liquid crystal display device has the advantages that frivolous, energy-conservation, low-power consumption, TV, computer, hand have been widely used in it
In the electronic equipments such as machine, digital camera.
Fig. 1 shows the schematic block diagram of the display device according to prior art.As shown in figure 1, display device includes display
Panel 10 and driving chip (Driver IC) 20.Although display panel 10 is not illustrated especially, it is on the glass substrate
Multiple pixels are configured with rectangularly, and each pixel has the thin film transistor (TFT) and liquid crystal cell being connected in series.To each pixel
Liquid crystal cell apply common electric potential Vcom.The selection terminal of thin film transistor (TFT) with behavior unit be connected to controlling grid scan line G1~
Gm, the signal terminal of thin film transistor (TFT) is connected to what is configured on the direction intersected with controlling grid scan line G1~Gm to arrange for unit
Source data line S1~Sn.
In Fig. 1, driving chip 20 includes time schedule controller 21, gate drivers 22 and source electrode driver 23, grid
Driver 22 is connected with a plurality of controlling grid scan line G1~Gm, for providing grid power supply, source electrode driver 23 and a plurality of source electrode number
According to line S1~Sn connections, for providing gray scale voltage.Time schedule controller 21 respectively with gate drivers 22 and source electrode driver
23 are connected, so as to provide various clock signals to gate drivers 22 and source electrode driver 23.Within a frame period, lead to
Crossing in units of controlling grid scan line makes the thin film transistor (TFT) of pixel turn on to select controlling grid scan line, in each of controlling grid scan line
Apply grayscale voltage during selection (during level is shown) from source data line S1~Sn to liquid crystal cell.The gray scale electricity applied
Press because thin film transistor (TFT) is cut off and the capacitive component of liquid crystal cell is retained as before select next time, keep liquid crystal cell
Shutter (shutter) state of part.
Be provided with alignment film on two glass substrates of display panel 10, to control the orientation of liquid crystal molecule with
And angle, yet with alignment film is in uneven thickness or causes display device Domain phenomenons occur the problem of LCD alignment.
It can be solved at present for the phenomenon by way of extruding, high-temperature baking, impacting with high pressure.But impacting with high pressure is general in black picture
It is lower to carry out.
At present, to carry out each display panel impacting with high pressure usually using test machine, but the test machine operating process
Complexity, and it is expensive, therefore, handled, made with defective products for the display panel that above mentioned problem occurs in batch processing
Into huge waste.
The content of the invention
The purpose of this utility model is to provide a kind of driving chip and display device for display panel.
According to one side of the present utility model there is provided a kind of driving chip for display panel, including：SECO
Device, for providing clock signal；Gate drivers, are connected with display panel, for providing grid voltage to the display panel；
Source electrode driver, for being provided under first mode or second mode by first path or the second path to the display panel
Gray scale voltage.
Preferably, the driving chip also includes：Switch selection circuit, is connected with the display panel, by multiple switch
Selecting unit is constituted；Discharge circuit, is connected between the source electrode driver and the switch selection circuit, by multiple amplifier lists
Member composition；
Wherein, multiple switch selecting unit is corresponded with multiple amplifier units.
Preferably, each switch selecting unit includes：First choice end, is joined directly together with the source electrode driver；Second
End is selected, is connected via amplifier unit corresponding with each switch selecting unit with the source electrode driver；Common port, it is and described
Display panel is connected.
Preferably, each switch selecting unit also includes control end, for receiving control signal, and according to the control
Signal processed makes the common port be connected with one of first choice end and the second selection end.
Preferably, when the common port is connected with the first choice end, the source electrode driver is via first path
Gray scale voltage is provided to the display panel.
Preferably, when the common port is connected with the described second selection end, the source electrode driver is via the second path
Gray scale voltage is provided to the display panel.
Preferably, in the flrst mode, the source electrode driver is provided with showing via first path to the display panel
Registration is according to corresponding gray scale voltage.
Preferably, under the second mode, the source electrode driver is provided with surveying via the second path to the display panel
Try the corresponding gray scale voltage of data；Power supply chip, is connected with the driving chip, and supply voltage is provided for the driving chip.
According to another aspect of the present utility model there is provided a kind of display device, including：Display panel；It is as described above to drive
Dynamic chip, for providing grid voltage and gray scale voltage to the display panel.
Preferably, the display device also includes：Control module, for being carried according to control signal to the source electrode driver
For display data or test data.
The driving chip and display device for display panel that the utility model embodiment is provided, by being driven in source electrode
It is dynamic that switch selection circuit and discharge circuit are set between device and display panel, realize under different mode of operations to display surface
Plate provides different gray scale voltages, can directly choose corresponding path in the case where needing impacting with high pressure and provide corresponding
Gray scale voltage, can carry out repair process to there is the display panel of Domain phenomenons, improve the reliability of display device, reduction
Cost.
Brief description of the drawings
By description referring to the drawings to the utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic block diagram of the display device according to prior art；
Fig. 2 shows the schematic block diagram of the driving chip for display panel according to the utility model embodiment；
Fig. 3 shows the schematic block diagram of the display device according to the utility model embodiment.
Embodiment
Various embodiments of the present utility model are more fully described hereinafter with reference to accompanying drawing.In various figures, identical
Element is represented using same or similar reference.For the sake of clarity, the various pieces in accompanying drawing are not drawn to paint
System.
The utility model can be presented in a variety of manners, some of examples explained below.
Fig. 2 shows the schematic block diagram of the driving chip for display panel 10 according to the utility model embodiment.
The display panel 10 is with a plurality of gate lines G 1-Gm and a plurality of data lines S1-Sn intersected with each other and in the gate line
Multiple pixels of G1-Gm and the data wire S1-Sn infall formation.
As shown in Fig. 2 the driving chip 20 includes time schedule controller 21, gate drivers 22 and source electrode driver
23。
Wherein, time schedule controller 21 is used to provide clock signal；Gate drivers 22 are connected with the display panel, are used for
Grid voltage is provided to the display panel, and is applied on gate lines G 1-Gm；Source electrode driver 23 be used in first mode or
Gray scale voltage is provided to the display panel by first path or the second path under second mode, and is applied to data wire S1-
On Sn.
The driving chip also includes switch selection circuit 24 and discharge circuit 25.Wherein, the switch selection circuit 24
It is connected, is made up of multiple switch selecting unit 241-24n (not shown)s with the display panel, with S1-Sn pairs of data wire
It should set.The discharge circuit 25 is connected between the source electrode driver 23 and the switch selection circuit 24, by multiple fortune
Unit 251-25n (not shown)s composition is put, is correspondingly arranged with multiple switch selecting unit 241-24n.Wherein, multiple switch
Selecting unit 241-24n and multiple amplifier unit 251-25n are corresponded.
In the present embodiment, each switch selecting unit 241-24n include first choice end A, second selection end B and
Common port C.Wherein, the first choice end A is joined directly together with the source electrode driver；Second selection end B is opened via with each
The corresponding amplifier unit 251-25n of selecting unit 241-24n are closed with the source electrode driver 23 to be connected；Common port C shows with described
Show that panel is connected.
Each switch selecting unit 241-24n also includes control end D, for receiving control signal, and according to described
Control signal makes the common port C select one of end B to be connected with first choice end A and second.
In the present embodiment, when the control end D control signals received make the common port C and the first choice end A phases
Lian Shi, the source electrode driver 23 provides gray scale voltage via first path to the display panel 10.
When the control end D control signals received make the common port C select end B to be connected with described second, the source electrode
Driver 23 provides gray scale voltage via the second path to the display panel 10.
Specifically, in the flrst mode, the source electrode driver 23 is provided via first path to the display panel 10
Gray scale voltage corresponding with display data.First mode is normal mode of operation, now, and the source electrode driver 23 receives aobvious
Registration evidence, and generation gray scale voltage corresponding with the display data is supplied to display panel 10 via first path.
Under the second mode, the source electrode driver 23 is provided with testing number via the second path to the display panel 10
According to corresponding gray scale voltage.Second mode is test pattern, and high pressure punching is provided to there is the display panel 10 of Domain phenomenons
The pattern hit, now, the source electrode driver 23 receive test data, and generate GTG electricity corresponding with the test data
Pressure, the display panel 10 is supplied to via the second path.
The driving chip for display panel that the utility model embodiment is provided, by source electrode driver and display surface
Switch selection circuit and discharge circuit are set between plate, realizes and provides different to display panel under different mode of operations
Gray scale voltage, can directly choose corresponding path and provides corresponding gray scale voltage in the case where needing impacting with high pressure, can be with
Repair process is carried out to there is the display panel of Domain phenomenons, the reliability of display device is improved, reduces cost.
In a preferred embodiment, switch selection circuit 24 can be exchanged with the position of discharge circuit 25.
Fig. 3 shows the schematic block diagram of the display device according to the utility model embodiment.As shown in figure 3, described aobvious
Showing device includes display panel 10, driving chip 20 and power supply chip 30.
Wherein, the display panel 10 have a plurality of gate lines G 1-Gm and a plurality of data lines S1-Sn intersected with each other and
In multiple pixels of the gate lines G 1-Gm and the data wire S1-Sn infall formation.
The driving chip 20 is used to provide grid voltage and gray scale voltage to the display panel.
In the present embodiment, the driving chip 20 includes time schedule controller 21, gate drivers 22 and source drive
Device 23.Wherein, time schedule controller 21 is used to provide clock signal；Gate drivers 22 are connected with the display panel, for
The display panel provides grid voltage, and is applied on gate lines G 1-Gm；Source electrode driver 23 is used in first mode or the
Gray scale voltage is provided to the display panel by first path or the second path under two modes, and is applied to data wire S1-Sn
On.
The driving chip also includes switch selection circuit 24 and discharge circuit 25.Wherein, the switch selection circuit 24
It is connected, is made up of multiple switch selecting unit 241-24n (not shown)s with the display panel, with S1-Sn pairs of data wire
It should set.The discharge circuit 25 is connected between the source electrode driver 23 and the switch selection circuit 24, by multiple fortune
Unit 251-25n (not shown)s composition is put, is correspondingly arranged with multiple switch selecting unit 241-24n.Wherein, multiple switch
Selecting unit 241-24n and multiple amplifier unit 251-25n are corresponded.
In the present embodiment, each switch selecting unit 241-24n include first choice end A, second selection end B and
Common port C.Wherein, the first choice end A is joined directly together with the source electrode driver；Second selection end B is opened via with each
The corresponding amplifier unit 251-25n of selecting unit 241-24n are closed with the source electrode driver 23 to be connected；Common port C shows with described
Show that panel is connected.
Each switch selecting unit 241-24n also includes control end D, for receiving control signal, and according to described
Control signal makes the common port C select one of end B to be connected with first choice end A and second.
In the present embodiment, when the control end D control signals received make the common port C and the first choice end A phases
Lian Shi, the source electrode driver 23 provides gray scale voltage via first path to the display panel 10.
When the control end D control signals received make the common port C select end B to be connected with described second, the source electrode
Driver 23 provides gray scale voltage via the second path to the display panel 10.
The power supply chip 30 is connected with the driving chip 20, is that the driving chip 20 provides supply voltage.
In the present embodiment, the modules of the power supply chip 30 to the driving chip 20 are provided which supply voltage.
The display device also includes control module 40, for providing display to the source electrode driver according to control signal
Data or test data.
Specifically, in the flrst mode, the source electrode driver 23 is provided via first path to the display panel 10
Gray scale voltage corresponding with display data.First mode is normal mode of operation, now, and the source electrode driver 23 receives aobvious
Registration evidence, and generation gray scale voltage corresponding with the display data is supplied to display panel 10 via first path.
Under the second mode, the source electrode driver 23 is provided with testing number via the second path to the display panel 10
According to corresponding gray scale voltage.Second mode is test pattern, and high pressure punching is provided to there is the display panel 10 of Domain phenomenons
The pattern hit, now, the source electrode driver 23 receive test data, and generate GTG electricity corresponding with the test data
Pressure, the display panel 10 is supplied to via the second path.
The display device that the utility model embodiment is provided, is switched by being set between source electrode driver and display panel
Selection circuit and discharge circuit, realize and provide different gray scale voltages to display panel under different mode of operations, can be with
In the case where needing impacting with high pressure, directly choose corresponding path and corresponding gray scale voltage is provided, can be to there is Domain
The display panel of phenomenon carries out repair process, improves the reliability of display device, reduces cost.
According to embodiment of the present utility model as described above, these embodiments do not have all details of detailed descriptionthe,
Also it is only described specific embodiment not limit the invention.Obviously, as described above, it can make many modifications and variations.This
Specification is chosen and specifically describes these embodiments, be in order to preferably explain principle of the present utility model and practical application, from
And modification of the skilled artisan well using the utility model and on the basis of the utility model is made
With.The scope that protection domain of the present utility model should be defined by the utility model claim is defined.
Claims (10)
1. a kind of driving chip for display panel, it is characterised in that including：
Time schedule controller, for providing clock signal；
Gate drivers, are connected with display panel, for providing grid voltage to the display panel；
Source electrode driver, under first mode or second mode by first path or the second path to the display panel
Gray scale voltage is provided.
2. driving chip according to claim 1, it is characterised in that also include：
Switch selection circuit, is connected with the display panel, is made up of multiple switch selecting unit；
Discharge circuit, is connected between the source electrode driver and the switch selection circuit, is made up of multiple amplifier units；
Wherein, multiple switch selecting unit is corresponded with multiple amplifier units.
3. driving chip according to claim 2, it is characterised in that each switch selecting unit includes：
First choice end, is joined directly together with the source electrode driver；
Second selection end, is connected via amplifier unit corresponding with each switch selecting unit with the source electrode driver；
Common port, is connected with the display panel.
4. driving chip according to claim 3, it is characterised in that each switch selecting unit also includes control
End, makes the common port be selected with first choice end and second in end for receiving control signal, and according to the control signal
One of be connected.
5. driving chip according to claim 3, it is characterised in that when the common port is connected with the first choice end
When, the source electrode driver provides gray scale voltage via first path to the display panel.
6. driving chip according to claim 3, it is characterised in that when the common port is connected with the described second selection end
When, the source electrode driver provides gray scale voltage via the second path to the display panel.
7. driving chip according to claim 1, it is characterised in that in the flrst mode, the source electrode driver via
First path provides gray scale voltage corresponding with display data to the display panel.
8. driving chip according to claim 1, it is characterised in that under the second mode, the source electrode driver via
Second path provides gray scale voltage corresponding with test data to the display panel.
9. a kind of display device, including：
Display panel；
Driving chip as described in claim any one of 1-8, for providing grid voltage and GTG electricity to the display panel
Pressure；
Power supply chip, is connected with the driving chip, and supply voltage is provided for the driving chip.
10. display device according to claim 9, it is characterised in that also include：
Control module, for providing display data or test data to the source electrode driver according to control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240928.6U CN206564122U (en) | 2017-03-13 | 2017-03-13 | Driving chip and display device for display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720240928.6U CN206564122U (en) | 2017-03-13 | 2017-03-13 | Driving chip and display device for display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564122U true CN206564122U (en) | 2017-10-17 |
Family
ID=60030707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720240928.6U Active CN206564122U (en) | 2017-03-13 | 2017-03-13 | Driving chip and display device for display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859710A (en) * | 2019-02-26 | 2019-06-07 | 昆山龙腾光电有限公司 | Gate driving circuit |
| CN112687241A (en) * | 2020-12-30 | 2021-04-20 | 青岛信芯微电子科技股份有限公司 | Liquid crystal display screen, display method and method for determining driving signal |
-
2017
- 2017-03-13 CN CN201720240928.6U patent/CN206564122U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859710A (en) * | 2019-02-26 | 2019-06-07 | 昆山龙腾光电有限公司 | Gate driving circuit |
| CN109859710B (en) * | 2019-02-26 | 2021-09-17 | 昆山龙腾光电股份有限公司 | Gate drive circuit |
| CN112687241A (en) * | 2020-12-30 | 2021-04-20 | 青岛信芯微电子科技股份有限公司 | Liquid crystal display screen, display method and method for determining driving signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101191445B1 (en) | Liquid crystal display and method for manufacturing the same | |
| CN101383130B (en) | Lcd | |
| CN105096789A (en) | Common circuit for gate driver on array (GOA) test and shutdown ghost elimination | |
| CN101593496B (en) | Grid output control method | |
| CN104361866A (en) | Driving device and driving method of display panel and display device | |
| US20190384078A1 (en) | Lighting jig for returning to light-on and panel detecting method thereof | |
| CN104977763A (en) | Drive circuit, drive method thereof and liquid crystal display | |
| CN102385205A (en) | Pixel structure | |
| CN107015408A (en) | TFT substrate and its method of testing, the method for eliminating shutdown image retention | |
| CN101206843B (en) | Control board and display apparatus having the same | |
| CN101369061A (en) | Method for driving liquid crystal display panel | |
| CN105242416A (en) | Liquid crystal display and manufacturing method therefor | |
| CN105609073A (en) | Drive circuit, drive method, and display apparatus | |
| CN107193168A (en) | A kind of array base palte and display panel | |
| CN107516502A (en) | Liquid crystal display panel drive circuit and driving method | |
| CN100543562C (en) | Liquid crystal panel drive circuit and LCD | |
| CN102608817A (en) | Liquid crystal display (LCD) device and drive method thereof | |
| CN110264971A (en) | Anti- splashette circuit and method, driving circuit, display device | |
| CN206564122U (en) | Driving chip and display device for display panel | |
| CN104880875A (en) | Array substrate and liquid-crystal display panel | |
| CN101561603B (en) | Array substrate of liquid display device and drive method thereof | |
| CN111028807A (en) | Driving circuit and driving method of liquid crystal display panel | |
| US8529307B1 (en) | Detection circuit and manufacturing method for LCD panel | |
| CN105118450B (en) | The liquid crystal display for avoiding GOA substrates from burning | |
| JP2006058870A (en) | Display device and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |