CN1959482A - Liquid crystal display capable of eliminating ghost, and method - Google Patents
Liquid crystal display capable of eliminating ghost, and method Download PDFInfo
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- CN1959482A CN1959482A CN 200610159858 CN200610159858A CN1959482A CN 1959482 A CN1959482 A CN 1959482A CN 200610159858 CN200610159858 CN 200610159858 CN 200610159858 A CN200610159858 A CN 200610159858A CN 1959482 A CN1959482 A CN 1959482A
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Abstract
A liquid crystal display enabling to eliminate ghost off consists of face plate with multiple pixel unit for displaying image; detection circuit for generating a switch signal; source electrode driver including a processing unit for providing a data signal voltage, multiple the first switch unit for connecting data signal voltage through to each first pixel unit of said face plate when switch-signal is on the first state and multiple the second switch unit for electric-connecting through each first pixel unit when switch signal is on the second state.
Description
[technical field]
The present invention relates to a kind of LCD and method of eliminating ghost, refer to a kind of LCD and method of utilizing electric charge to share effect elimination ghost especially.
[background technology]
Function advanced person's display gradually becomes the valuable feature of consumption electronic product now, and wherein LCD has become the display that various electronic equipments such as mobile phone, PDA(Personal Digital Assistant), digital camera, computer screen or the widespread use of notebook computer screen institute have the high-res color/graphics gradually.
Yet when LCD during at the opening and closing power supply, the electric charge of display frame before also remains within the liquid crystal capacitance of display panels, therefore has the generation of ghost phenomena.Problem for fear of ghost, prior art such as United States Patent (USP) announce the 6th, 476, No. 590, this patent system uncovers after shutdown starts, time schedule controller is sent a specific voltage data signal, makes source electrode driver to produce specific picture according to this specific voltage data signal, for example black picture or white picture.But such design can increase the complexity of system design, therefore the mode that still remains other improvement.
[summary of the invention]
In view of this, the purpose of this invention is to provide a kind of LCD of avoiding ghost phenomena, make LCD when the opening and closing power supply, picture can present uniformly, to solve the problem of above-mentioned prior art.
One embodiment of the invention system provides a kind of method of testing of LCD, and it comprises a kind of LCD of eliminating ghost of the following step, and it comprises a display panels, a testing circuit and one source pole driver.This display panels comprises a plurality of pixel cells, is used for show image.This testing circuit system is used for producing a switching signal according to a power control signal.There are two places the position that testing circuit is placed, and the first is circuit independently, and it two is to be integrated in the source electrode driver.This source electrode driver comprises a processing unit, a plurality of first switch element and a plurality of second switches unit.This processing unit is used to provide a voltage data signal.These a plurality of first switch elements are coupled to this processing unit, are used for when this switching signal is in one first state, and this voltage data signal of conducting is to each pixel cell of this display panels.This a plurality of second switches unit is used for when this switching signal is in one second state, and each pixel cell is electrically connected.
The present invention provides a kind of method that is used to eliminate the ghost of LCD in addition, and it comprises the following step: directly produce switching signal according to start-up command and shutdown command; When this switching signal was in one first state, conducting one voltage data signal was to each pixel cell of this display panels; And when this switching signal is in one second state, each pixel cell is electrically connected.
[description of drawings]
Fig. 1 is the functional block diagram of first embodiment of LCD of the present invention.
Fig. 2 is the functional block diagram of processing unit of the source electrode driver of Fig. 1.
When Fig. 3 is the LCD normal operation, according to input data signal, the clock signal of the source electrode driver of Fig. 2, open beginning signal, control signal and variation of output signals sequential chart.
Fig. 4 is time schedule controller and the synoptic diagram of source electrode driver when running of Fig. 1.
Fig. 4 A is the synoptic diagram of time schedule controller and the embodiment of source electrode driver before shutdown.
Fig. 4 B is the time schedule controller of Fig. 1 and the synoptic diagram of another embodiment of source electrode driver 16 before shutdown.
Fig. 4 C is the time schedule controller of Fig. 1 and the synoptic diagram of another embodiment of source electrode driver before shutdown.
When Fig. 5 is LCD start, shutdown and normal operation, the variation sequential chart of output Y2n, the Y2n-1 of switching signal PW_OFF and source electrode driver.
When Fig. 6 is LCD shutdown and normal operation, the variation sequential chart of required power supply aanalogvoltage AVDD, digital voltage XVCC/YVCC, switching signal PW_OFF and grid control signal XON on the source electrode driver.
When Fig. 7 is LCD shutdown and normal operation, the variation sequential chart of the output Y1-Yn of supply voltage signal Vsup, switching signal PW_OFF and source electrode driver.
Fig. 8 is the synoptic diagram of second embodiment when operation of time schedule controller of the present invention and source electrode driver 16.
Fig. 8 A is the synoptic diagram of time schedule controller and 1 embodiment of source electrode driver before shutdown.
Fig. 8 B is the synoptic diagram of time schedule controller and another embodiment of source electrode driver before shutdown.
Fig. 8 C is the synoptic diagram of time schedule controller and another embodiment of source electrode driver before shutdown.
Fig. 9 is that LCD operates under the shutdown command, the sequential chart of switching signal PW_OFF and line related signal.
Figure 10 is the functional block diagram of second embodiment of LCD of the present invention.
Figure 11 is the functional block diagram of the 3rd embodiment of LCD of the present invention.
Figure 12 is the method flow diagram that LCD of the present invention is eliminated ghost.
[embodiment]
See also Fig. 1, Fig. 1 is the functional block diagram of LCD 10 of the present invention.LCD 10 comprises a power supply unit 12, time schedule controller 14, multiple source driver 16, a plurality of gate drivers 18, a testing circuit 22 and a display panels 20.Display panels 20 comprises a plurality of pixel cells 28.Power supply unit 12 is used for supplying LCD 10 interior all circuit and comprises time schedule controller 14, multiple source driver 16, a plurality of gate drivers 18 and testing circuit 22 necessary operations voltages, for making drawing clear, in Fig. 1, only show the annexation of power supply unit 12 and testing circuit 22.When the clock signal that produces when time schedule controller 14 is sent to a plurality of gate drivers 18, a plurality of gate drivers 18 can produce sweep signal and be sent to display panels 20 via sweep trace 26, at the same time, 14 of time schedule controllers can send clock signal to source electrode driver 16, and source electrode driver 16 will receive the digital data signal voltage that time schedule controller 14 is transmitted according to clock signal.When the pixel cell 28 of display panels 20 receives sweep signal, the digital data signal voltage show image that will send out via data line 24 according to source electrode driver 16.Testing circuit 22 can be integrated within the source electrode driver 16, and the action that source electrode driver 16 can directly use the present invention to do to reset when startup and shutdown is to eliminate the ghost of display panels 20.
See also Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the functional block diagram of processing unit 36 of the source electrode driver 16 of Fig. 1, when Fig. 3 is LCD 10 normal operations, according to input data signal, the clock signal of the source electrode driver 16 of Fig. 2, open beginning signal, control signal and variation of output signals sequential chart, Fig. 4 is time schedule controller and the synoptic diagram of source electrode driver 16 when running of Fig. 1.As shown in Figure 4, source electrode driver 16 comprises a plurality of first switch elements 30, a plurality of second switches unit 32, a plurality of output terminal (pad) 34, a plurality of the 3rd switch element 38, a plurality of link 40 and a processing unit 36.Source electrode driver 16 output Y1-Yn can deliver to each data line 24 via a plurality of output terminals 34, be sent to corresponding pixel cell 28 at last.Link 40 is to be used for being electrically connected adjacent source electrode driver 16 or time schedule controller 14.Processing unit 36 comprises an output-stage circuit 161, a digital analog converter 162, a booster circuit 163, a data bolt lock device 164, a data working storage 165 and a shift registor 166.Time schedule controller 14 via bus-bar input data signal D00P/N ~ D02P/N, D10P/N ~ D102P/N, D20P/N ~ D22P/N to data working storage 165.Clock signal CLKP/N is feed-in shift registor 166 and data working storage 165 respectively.Open beginning signal DIO1 and input to shift registor 166 and start source electrode drivers 16 readout data signals, open beginning signal DIO2 and export next stage source electrode driver 16 to, open beginning setting signal SHL and can set that to open beginning signal DIO1, DIO2 be input pin position or output pin position.Control signal STB is feed-in data bolt lock device 164 and output-stage circuit 161 respectively, and when control signal STB was the rising edge, data were by data working storage 165 feed-in data bolt lock devices 164; When control signal STB was the drop edge, image data voltage was promoted the pixel cell 28 of liquid crystal display face version 20 by output-stage circuit 161.When control signal STB between rising edge and drop edge, Gao Zukang is kept in the output of source class driver 16.Switching signal PW_OFF is that a trigger pip makes LCD 10 when the opening and closing power supply, picture can present uniformly, switching signal PW_OFF can be made up of the signal of multidigit unit, and this embodiment is as trigger pip by two bit switching signal PW_OFF.Testing circuit 22 can produce switching signal PW_OFF when detecting supply voltage decline.
See also Fig. 4 and Fig. 5, when Fig. 5 is LCD 10 starts, shutdown and normal operation, the variation sequential chart of output Yn, the Yn-1 of switching signal PW_OFF and source electrode driver 16.Testing circuit 22 can produce switching signal PW_OFF when detecting supply voltage decline, switching signal does not limit has only one, and in this embodiment, switching signal PW_OFF is two bits.By adjusting the output of testing circuit 22, two bit switching signal PW_OFF have four kinds of states: (H, H) (H, L) (L, and H) (L, L), the unlatching and the closed condition of these four kinds of state determine switch unit 30,32,38.When LCD 10 is showing when running, this moment, LCD 10 was in the state of operate as normal, first state of two bit switching signal PW_OFF be (H, H).This moment, first switch element 30 of source electrode driver 16 can be opened (turnon), and second switch unit 32 and the 3rd switch element 38 can be closed (turn off).The voltage data signal of processing unit 36 can be delivered to each data line 24 via a plurality of output terminals 34 simultaneously, is sent to corresponding pixel cell 28 at last.
See also Fig. 4 A, Fig. 4 A is the synoptic diagram of time schedule controller and the embodiment of source electrode driver 16 before shutdown.When LCD 10 began to shut down, power supply unit 12 began supply voltage signal V
SupDrop to accurate position V1.And testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to accurate V1, will export one or two bit switching signal PW_OFF is that (H L) gives source electrode driver 16 to second state.In the present embodiment, supply voltage signal V
SupCan be digital voltage or aanalogvoltage.This moment, first switch element 30 and the 3rd switch element 38 of source electrode driver 16 can be closed (turn off), and (turn on) can be opened in second switch unit 32.This moment, each a plurality of output terminals 34 were electrical connection, that is to say that all pixel cells 28 all can operate under the same voltage level, so the picture of this moment will be presented at same GTG.
See also Fig. 4 B, Fig. 4 B is the time schedule controller of Fig. 1 and the synoptic diagram of another embodiment of source electrode driver 16 before shutdown.When testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to accurate V1, will export one or two bit switching signal PW_OFF is that (L L) gives source electrode driver 16 to the third state.This moment, first switch element 30 of source electrode driver 16 can be closed (turn off), and second switch unit 32 and the 3rd switch element 38 can be opened (turn on).Each a plurality of output terminals 34 all were electrically connected to and decided voltage end 25 this moment, that is to say that all pixel cells 28 all can operate in to decide under the predeterminated voltage that voltage end 25 exported.This predeterminated voltage can be that common-battery is pressed (Common), or other any suitable voltage quasi position.Because all pixel cells 28 are operating under the same predeterminated voltage, so the picture of display panels 20 will be presented at same GTG.Also therefore the picture of whole liquid crystal display panel 20 can evenly show and avoid causing because of electric charge is residual the phenomenon of ghost to take place.
See also Fig. 4 C, Fig. 4 C is the time schedule controller of Fig. 1 and the synoptic diagram of another embodiment of source electrode driver 16 before shutdown.When testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to accurate V1, will export one or two bit switching signal PW_OFF is that (L H) gives source electrode driver 16 to four condition.This moment, first switch element 30 of source electrode driver 16 can be closed (turn off), and second switch unit 32 and the 3rd switch element 38 can be opened (turn on).This moment, each a plurality of output terminals 34 all just were connected to ground voltage GND in source electrode driver 16 inside, that is to say that all pixel cells 28 all can operate in ground voltage.Do not need the output terminal 34 that voltage is connected to source electrode driver of deciding of an outside.Because all pixel cells 28 are operating in ground voltage, the picture of display panels 20 will be to present consistent GTG.Also therefore the picture of whole liquid crystal display panel 20 can evenly show and avoid causing because of electric charge is residual the phenomenon of ghost to take place.
When Fig. 6 is LCD 10 shutdown and normal operation, the variation sequential chart of required power supply aanalogvoltage AVDD, digital voltage XVCC/YVCC, switching signal PW_OFF and grid control signal XON on the source electrode driver.More detailed this embodiment of narration of Fig. 6 when carrying out, supply voltage, control signal and circuit state.Supply voltage signal V
SupAs the sequential input source driver 16 of Fig. 6, testing circuit is according to supply voltage signal V
SupThe timing sequence generating switching signal PW_OFF of input, source electrode driver starts the mechanism of eliminating ghost according to the accurate position of switching signal PW_OFF.Supply voltage signal V
SupCan be power supply aanalogvoltage AVDD or digital voltage XVCC/YVCC wherein one.When grid control signal XON is low level, the grid of the electric crystal of the pixel cell 28 that LCD 10 is all is opened, all pixel cells 28 of 16 pairs of display panels 20 of source electrode driver begin to discharge and recharge, therefore all pixel cells 28 are operating under the same predeterminated voltage, and this moment, the picture of display panels 20 will be presented at same GTG.
See also Fig. 7, Fig. 7 is the another kind of triggering mode of this invention of expression, when Fig. 7 is LCD 10 shutdown and normal operation, and the variation sequential chart of the output Y1-Yn of supply voltage signal Vsup, switching signal PW_OFF and source electrode driver 16.When testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to second accurate V0 by first an accurate V1, will export a switching signal PW_OFF is that a pulse wave gives source electrode driver 16.This moment, the switch element of source electrode driver 16 can be according to the connected mode of switching signal PW_OFF determining source driver 16 outputs.
See also the 8th figure, the 8th figure is the synoptic diagram of second embodiment when running of time schedule controller of the present invention and source electrode driver 16, circuit framework and aforesaid embodiment change to some extent, and the 8th figure is to use the present invention and method solution to cause the phenomenon of ghost to take place because of electric charge is residual equally.Source electrode driver 16 comprises a plurality of first switch elements 60, a plurality of second switches unit 62, a plurality of output terminal (pad) 64, a plurality of the 3rd switch element 68 and a processing unit 66.The structure of processing unit 66 is consistent with the structure of the processing unit of Fig. 2 36, does not give unnecessary details in addition at this.The voltage data signal of processing unit 66 can be delivered to each data line 24 via a plurality of output terminals 64, is sent to corresponding pixel cell 28 at last.Link 70 is to be used for being electrically connected adjacent source electrode driver 16 or time schedule controller 14.
When LCD 10 is showing when running, first state of switching signal PW_OFF be (H, H).This moment, first switch element 60 of source electrode driver 16 can be opened (turn on), and second switch unit 62 and the 3rd switch element 68 can be closed (turn off).This moment, LCD 10 was in the state of operate as normal, and the voltage data signal of processing unit 66 can be delivered to each data line 24 via a plurality of output terminals 64, was sent to corresponding pixel cell 28 at last.
See also Fig. 8 A, Fig. 8 A is the synoptic diagram of time schedule controller and the embodiment of source electrode driver 16 before shutdown.When LCD 10 began to shut down, power supply unit 12 can begin supply voltage signal V
SupDrop to accurate position V1.And testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to accurate V1, will export one or two bit switching signal PW_OFF is that (H L) gives source electrode driver 16 to second state.In the present embodiment, supply voltage signal V
SupCan be power supply aanalogvoltage AVDD shown in Figure 6 or digital voltage XVCC/YVCC wherein one.This moment, first switch element 60 and the 3rd switch element 68 of source electrode driver 16 can be closed (turn off), and (turnon) can be opened in second switch unit 62.This moment, each a plurality of output terminals 64 were electrical connection, that is to say that all pixel cells 28 all can operate under the same voltage level, so the picture of this moment will be presented at same GTG.
See also Fig. 8 B, Fig. 8 B is the synoptic diagram of time schedule controller and another embodiment of source electrode driver 16 before shutdown.For instance, detecting supply voltage signal V when testing circuit 22
SupWhen dropping to V1, will export one or two bit switching signal PW_OFF and can be output as the third state (L L) gives source electrode driver 16.This moment, first switch element 60 of source electrode driver 16 can be closed (turn off), and second switch unit 62 and the 3rd switch element 68 can be opened (turnon).Each a plurality of output terminals 64 all were electrically connected to and decided voltage end 25 this moment, that is to say that all pixel cells 28 all can operate in to decide under the predeterminated voltage that voltage end 25 exported.This predeterminated voltage can be that common-battery is pressed (Common), or other any suitable voltage quasi position.Because all pixel cells 28 are operating under the same predeterminated voltage, this moment, the picture of display panels 20 will be presented at same GTG.
See also Fig. 8 C, Fig. 8 C is the synoptic diagram of time schedule controller and another embodiment of source electrode driver 16 before shutdown.When testing circuit 22 is detecting supply voltage signal V
SupWhen dropping to accurate V1, will export one or two bit switching signal PW_OFF is that (L H) gives source electrode driver 16 to four condition.This moment, first switch element 60 of source electrode driver 16 can be closed (turn off), and second switch unit 62 and the 3rd switch element 68 can be opened (turn on).This moment, each a plurality of output terminals 34 all just were connected to ground voltage GND in source electrode driver 16 inside, that is to say that all pixel cells 28 all can operate in ground voltage GND.Do not need the output terminal 64 that voltage is connected to source electrode driver of deciding of an outside.Because all pixel cells 28 are operating in ground voltage, the picture of display panels 20 will be to present consistent GTG.Also therefore the picture of whole liquid crystal display panel 20 can evenly show and avoid causing because of electric charge is residual the phenomenon of ghost to take place.
See also Fig. 9, Fig. 9 is that LCD operates under the shutdown command, the sequential chart of switching signal PW_OFF and line related signal.What must pay special attention to is that the present invention is except being applied to the shutdown execution, in another embodiment, when when start, also exportable one or the two bit switching signal PW_OFF of testing circuit 22 be second state (H, L) or the third state (L, H) or four condition (L L) gives source electrode driver 16.Testing circuit is according to the timing sequence generating switching signal PW_OFF of supply voltage input, and source electrode driver starts this mechanism according to the accurate position of switching signal PW_OFF, and picture can evenly show during start.The variation of the above-mentioned switching signal PW_OFF power supply signal that to be testing circuit 22 produce according to power supply unit 12 decides.
See also Figure 10, Figure 10 is the functional block diagram of second embodiment of LCD 10 of the present invention.Be different from embodiment shown in Figure 1, testing circuit 22 can also directly produce switching signal according to start-up command or shutdown command, that is to say that when testing circuit 22 received start-up command or shutdown command, directly output switching signal was with the running of control aforementioned switches unit.
See also Figure 11, Figure 11 is the functional block diagram of the 3rd embodiment of LCD 10 of the present invention.Be different from Fig. 1 and embodiment shown in Figure 10, testing circuit 22 can also produce switching signal according to the change in voltage that time schedule controller 14 produces, that is to say, when time schedule controller 14 receives start-up command or shutdown command, can give testing circuit 22 by output one power control signal, and testing circuit 22 receives the power control signal that time schedule controller 14 produces, promptly can output switching signal with the running of control aforementioned switches unit.
See also Figure 12, Figure 12 is the method flow diagram that LCD of the present invention is eliminated ghost.Method step of the present invention is as follows:
Step S600: produce a switching signal according to a power control signal.This power control signal can be according to a start-up command or a shutdown command; Or when detecting a supply voltage signal and changing, produce this power control signal.
Step S602: the state of detector switch signal.
Step S604: when switching signal was in one first state, conducting one voltage data signal was to the output of this source electrode driver.
Step S606: when switching signal was in one second state, conducting one predeterminated voltage was to the output of source electrode driver.
Step S608: when switching signal is in a third state, with the output connection of source electrode driver.
Step S610: when switching signal was in a four condition, the conducting ground voltage was to the output of source electrode driver 16.
Compared to prior art, when the present invention will close or open at supply voltage, produce a power control signal.Power control signal can be that the change of supply voltage produces, or produces by the corresponding control signal of instruction generation of time schedule controller, start or shutdown.When testing circuit detects start or shutdown command, can whole output terminals be electrically connected or whole conducting to a predeterminated voltage by generation one switching signal Controlling Source driver, make the electric charge on the liquid crystal capacitance keep identical, display panels can be presented at uniformly under the same GTG before start just or shutdown, and avoid the generation of ghost.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (15)
1. LCD of eliminating ghost comprises:
One display panels comprises a plurality of pixel cells, is used for show image; And
One testing circuit is used for producing a switching signal according to a power control signal;
The one source pole driver comprises:
One processing unit is used to provide a voltage data signal;
A plurality of first switch elements are coupled to this processing unit, are used for when this switching signal is in one first state, and this voltage data signal of conducting is to each pixel cell of this display panels; And
A plurality of second switches unit is used for when this switching signal is in one second state, with each pixel cell electrical connection of this display panels.
2. LCD according to claim 1 is characterized in that this testing circuit is integrated within this source electrode driver.
3. LCD according to claim 1 is characterized in that it comprises the certain voltage end in addition, is used to provide a predeterminated voltage.
4. LCD according to claim 3, it is characterized in that, this source electrode driver comprises one the 3rd switch element in addition, be coupled to the switch element that this decides voltage end and this a plurality of second switches unit, be used for when this switching signal is in this second state, this predeterminated voltage of conducting is to each pixel cell of this display panels.
5. LCD according to claim 3, it is characterized in that, this source electrode driver comprises one the 3rd switch element in addition, be coupled to the second switch unit that this decides voltage end and this a plurality of second switches unit, be used for when this switching signal is in a third state, this predeterminated voltage of conducting is to each pixel cell of this display panels.
6. LCD according to claim 1 is characterized in that, this each second switch unit is between adjacent 2 first switch elements of these a plurality of first switch elements.
7. LCD according to claim 1 is characterized in that this processing unit comprises a shift registor.
8. LCD according to claim 1 is characterized in that, this power control signal is a shutdown command or a start-up command.
9. LCD according to claim 1, it comprises time schedule controller in addition, when being used for producing this power control signal.
10. LCD according to claim 1, it is characterized in that, other comprises a power supply unit, be used for producing a supply voltage signal as this power control signal, wherein this testing circuit is used for producing this switching signal when this supply voltage signal that this power supply unit produces changes to one second accurate by one first accurate position.
11. a method that is used to eliminate the ghost of LCD, this LCD comprises a display panels, comprises a plurality of pixel cells, is used for show image, and this method comprises:
Produce a switching signal according to a power control signal;
When this switching signal was in one first state, conducting one voltage data signal was to each pixel cell of this display panels; And
When this switching signal is in one second state, with each pixel cell electric connection of this display panels.
12. method according to claim 11, it is characterized in that, when this switching signal is in one second state, the step that each pixel cell of this display panels is electrically connected comprises: when this switching signal was in this second state, conducting one predeterminated voltage was to each pixel cell of this display panels.
13. method according to claim 11 is characterized in that, other comprises: when this switching signal was in a third state, conducting one predeterminated voltage was to each pixel cell of this display panels.
14. method according to claim 11 is characterized in that, this power control signal is a shutdown command or a start-up command.
15. method according to claim 11 is characterized in that, other comprises: when a supply voltage signal changes to one second accurate by one first accurate position, produce this power control signal.
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| CN 200610159858 CN1959482A (en) | 2006-10-25 | 2006-10-25 | Liquid crystal display capable of eliminating ghost, and method |
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| CN101388188B (en) * | 2007-09-11 | 2011-05-18 | 奇景光电股份有限公司 | Source driver and noise suppression method thereof |
| CN101388185B (en) * | 2007-09-12 | 2011-12-28 | 奇景光电股份有限公司 | Source driver and voltage drop detector thereof |
| CN101399019B (en) * | 2007-09-30 | 2012-03-14 | 奇景光电股份有限公司 | Source electrode driver and noise suppression method thereof |
| CN104157258A (en) * | 2014-08-27 | 2014-11-19 | 南京中电熊猫液晶显示科技有限公司 | Source driver and display |
| CN104217668A (en) * | 2014-09-10 | 2014-12-17 | 深圳市华星光电技术有限公司 | Display panel testing device and display panel testing method |
| US9626888B2 (en) | 2014-09-10 | 2017-04-18 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Method and apparatus for testing display panel |
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| CN106847206A (en) * | 2016-12-28 | 2017-06-13 | 深圳天珑无线科技有限公司 | Display screen automatic discharging method, display screen and mobile terminal |
| CN108281118A (en) * | 2018-01-09 | 2018-07-13 | 昆山龙腾光电有限公司 | Display panel and liquid crystal display device |
| CN108986764A (en) * | 2018-10-10 | 2018-12-11 | 惠科股份有限公司 | Display device and its method for eliminating shutdown ghosting image |
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| CN101388188B (en) * | 2007-09-11 | 2011-05-18 | 奇景光电股份有限公司 | Source driver and noise suppression method thereof |
| CN101388185B (en) * | 2007-09-12 | 2011-12-28 | 奇景光电股份有限公司 | Source driver and voltage drop detector thereof |
| CN101399019B (en) * | 2007-09-30 | 2012-03-14 | 奇景光电股份有限公司 | Source electrode driver and noise suppression method thereof |
| CN104157258A (en) * | 2014-08-27 | 2014-11-19 | 南京中电熊猫液晶显示科技有限公司 | Source driver and display |
| US9626888B2 (en) | 2014-09-10 | 2017-04-18 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Method and apparatus for testing display panel |
| WO2016037347A1 (en) * | 2014-09-10 | 2016-03-17 | 深圳市华星光电技术有限公司 | Display panel test apparatus and method |
| CN104217668A (en) * | 2014-09-10 | 2014-12-17 | 深圳市华星光电技术有限公司 | Display panel testing device and display panel testing method |
| CN104217668B (en) * | 2014-09-10 | 2017-08-25 | 深圳市华星光电技术有限公司 | Testing device of display panel and method |
| CN106847206A (en) * | 2016-12-28 | 2017-06-13 | 深圳天珑无线科技有限公司 | Display screen automatic discharging method, display screen and mobile terminal |
| CN106710554A (en) * | 2017-01-20 | 2017-05-24 | 京东方科技集团股份有限公司 | Scintillation drift optimization circuit as well as optimization method thereof, array substrate and display device |
| CN106710554B (en) * | 2017-01-20 | 2019-03-05 | 京东方科技集团股份有限公司 | Flashing drift optimization circuit and optimization method, array substrate, display device |
| CN108281118A (en) * | 2018-01-09 | 2018-07-13 | 昆山龙腾光电有限公司 | Display panel and liquid crystal display device |
| CN108986764A (en) * | 2018-10-10 | 2018-12-11 | 惠科股份有限公司 | Display device and its method for eliminating shutdown ghosting image |
| CN111107285A (en) * | 2018-10-29 | 2020-05-05 | 和鑫光电股份有限公司 | X-ray detector and method for shooting image by using same |
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