CN101408699A - Source drive module, display and operation method of display - Google Patents
Source drive module, display and operation method of display Download PDFInfo
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- CN101408699A CN101408699A CNA2007101802245A CN200710180224A CN101408699A CN 101408699 A CN101408699 A CN 101408699A CN A2007101802245 A CNA2007101802245 A CN A2007101802245A CN 200710180224 A CN200710180224 A CN 200710180224A CN 101408699 A CN101408699 A CN 101408699A
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Abstract
The invention relates to a method for operating a display. The method includes the following steps: firstly, an input voltage of the display is detected; when the input voltage declines to a first voltage, the data signal source of the display is cut off with a plurality of data wires, therefore, a plurality of data wires are coupled with each other. After the data wires are coupled with each other, transistors of all pixel units of the display are conducted so that electric potentials at a first end of a plurality of storage capacitances which are coupled with the transistors can be neutralized, and the transistors are coupled with data wires. After the neutralization of the electric potentials at the first end of the storage capacitances, a second end of the storage capacitances is coupled with a ground terminal.
Description
Technical field
The present invention relates to a kind of display, and particularly relate to a kind of display that can improve power-off ghost shadow.
Background technology
Along with the significantly progressive and the Internet of computing power, the high development of multimedia technology, the transmission of image information at present transfers digital transmission to by simulation mostly.In order to cooperate modern life pattern, it is frivolous that the volume of video or image device day by day is tending towards.Flat-panel screens (the Flat Panel Display that cooperates photoelectric technology and semiconductor fabrication to be developed, FPD), LCD (Liquid CrystalDisplay for example, LCD), organic electro-luminescent display (Organic Electro-LuminescentDisplay, OELD) or plasma scope (Plasma Display Panel, PDP), become the main flow of display product gradually.
Fig. 1 is the partial circuit diagram of existing display.Please refer to Fig. 1, each pixel cell of existing display comprises transistor 103, liquid crystal capacitance 105 and memory capacitance 108.When display received off signal, off signal can be passed to each transistor 103 by all sweep traces 110.By this, all crystals pipe 103 all can be enabled and open.At this moment, each memory capacitance 108 stored charge all can be disengaged by transistor 103.Therefore, the current potential that is coupled to each memory capacitance 108 of same data line 112 is understood identical.And then, each bar data line 112 ground connection and make each memory capacitance 108 stored charge flow to ground.
Yet, before data line 112 ground connection are not finished as yet, having same potential though be coupled to each memory capacitance 108 of same data line 112, the memory capacitance 108 that is coupled to different pieces of information line 114 has different potentials.That is be, the pixel cell that same data line 112 coupled can present same gray level, but the pixel cell that different pieces of information line 114 is coupled then can present different GTGs.This irregular picture that is produced when shutdown just is called power-off ghost shadow, and this power-off ghost shadow must just can disappear after each bar data line 112,114 ground connection.Along with the day by day lifting of consumer for the quality requirements of display, phenomenon how to improve power-off ghost shadow has become important problem.
Summary of the invention
The invention provides a kind of display, can improve the phenomenon of power-off ghost shadow.
The invention provides a kind of source drive module, can improve the phenomenon that power-off ghost shadow appears in display.
The invention provides a kind of method of operating of display, can improve the phenomenon of power-off ghost shadow.
The present invention proposes a kind of display, comprises display panel, source drive module, a plurality of first switch and a plurality of second switch.Wherein, display panel comprises a plurality of pixel cells of arranging with matrix-style.Source drive module has a data signal source, and data signal source is coupled to pixel cell by many data lines.In addition, first end of each first switch is coupled to data signal source, and second end of each first switch then is coupled to a data line.Each second switch is coupled between two adjacent data lines.When second switch operated in first coupled mode, each data line was coupled to each other.
In an embodiment of this display, when second switch operated in second coupled mode, data line was coupled to earth terminal.
In an embodiment of this display, each pixel cell comprises transistor and memory capacitance.Wherein, transistorized gate terminal receives sweep signal, and transistorized first source/drain electrode end is coupled to a data line, and transistorized second source/drain electrode end is coupled to first end of memory capacitance.In addition, display can more comprise the 3rd switch, and the 3rd switch is in order to change the voltage level that each memory capacitance second end couples.
In an embodiment of this display, more comprise potential detecting circuit, with input voltage, determine the operator scheme of first switch and second switch according to display.In addition, for example when potential detecting circuit detects input voltage and is reduced to one first voltage, first switch open, and second switch operates in first coupled mode.In addition, display can more comprise one the 3rd switch, and the 3rd switch is coupled to second end of memory capacitance.Wherein, when potential detecting circuit detected input voltage and is reduced to one second voltage, second switch operated in second coupled mode, and the voltage level that couples with second end that changes memory capacitance of the 3rd switching manipulation.In addition, display can more comprise a backlight module, so that the display light source of display panel to be provided.This backlight module detects in potential detecting circuit and closes before input voltage is reduced to first voltage.
In an embodiment of this display, source drive module has more a buffer amplifier circuit, is coupled between data signal source and the data line.
The present invention proposes a kind of source drive module, comprises data signal source, a plurality of first switch and a plurality of second switch.Wherein, first end of each first switch is coupled to data signal source, and second end of each first switch then is coupled to a data line.Each second switch is coupled between two adjacent data lines.When second switch operated in first coupled mode, then each data line was coupled to each other.
In an embodiment of this source drive module, more comprise a potential detecting circuit, with according to input voltage level, determine the operator scheme of first switch and second switch.In addition, for example when potential detecting circuit detects input voltage and is reduced to one first voltage, first switch open, and second switch operates in first coupled mode.In addition, for example when potential detecting circuit detected input voltage and is reduced to one second voltage, second switch operated in second coupled mode, so that data line is coupled to earth terminal.
The present invention proposes a kind of display in addition, comprises display panel and aforementioned source drive module.Wherein, display panel comprises a plurality of pixel cells of arranging with matrix-style.The data signal source of source drive module is coupled to pixel cell by many data lines.
In an embodiment of this source drive module and display, when second switch operated in second coupled mode, then data line was coupled to earth terminal.
In an embodiment of this source drive module and display, more comprise a buffer amplifier circuit, be coupled between data signal source and the data line.
In an embodiment of this display, each pixel cell comprises transistor and memory capacitance.Wherein, transistorized gate terminal receives the one scan signal, and transistorized first source/drain electrode end is coupled to a data line, and transistorized second source/drain electrode end is coupled to first end of memory capacitance.
In an embodiment of this display, more comprise one the 3rd switch, the 3rd switch is coupled to second end of memory capacitance, the voltage level that couples in order to second end that changes memory capacitance.
In an embodiment of this display, more comprise a potential detecting circuit, with input voltage, determine the operator scheme of first switch and second switch according to display.In addition, for example when potential detecting circuit detects input voltage and is reduced to one first voltage, first switch open, and second switch operates in first coupled mode.In addition, display can more comprise one the 3rd switch, and the 3rd switch is coupled to second end of memory capacitance.Wherein, when potential detecting circuit detected input voltage and is reduced to one second voltage, second switch operated in second coupled mode, and the voltage level that couples with second end that changes memory capacitance of the 3rd switching manipulation.In addition, display can more comprise a backlight module, so that the display light source of display panel to be provided.This backlight module detects in potential detecting circuit and closes before input voltage is reduced to first voltage.
The present invention proposes a kind of method of operating of display, comprises the following steps.At first, detect the input voltage of display.When input voltage is reduced to first voltage, makes between the data signal source of display and many data lines to disconnect, and many data lines are coupled to each other.After these data lines were coupled to each other, the transistor of all pixel cells of conducting display neutralized mutually so that be coupled to the current potential of first end of transistorized a plurality of memory capacitance, and these transistors are to be coupled to data line.At the current potential of first end of these memory capacitance mutually after the neutralization, change the voltage level that second end of these memory capacitance couples.
In the method for operating of this display, when the voltage level that second end that changes memory capacitance couples, more comprise making many data lines be coupled to earth terminal simultaneously.In addition, for example be after input voltage is low to moderate second voltage by first voltage drop, just change the voltage level that second end of memory capacitance couples.
In the method for operating of this display, the voltage level that second end of change memory capacitance couples is to carry out after being low to moderate second voltage when input voltage by first voltage drop.
In the method for operating of this display, input voltage is to begin to reduce after display receives off signal, after receiving off signal, be reduced to first voltage with input voltage before, more comprise the backlight module of closing display.
In sum, the method for operating of source drive module of the present invention, display and display can be improved the phenomenon of power-off ghost shadow.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the partial circuit diagram of the existing display of explanation.
Fig. 2 is the circuit diagram of the display of explanation one embodiment of the invention.
Fig. 3 A is the circuit diagram of potential detecting circuit that is applied to the display of Fig. 2.
Fig. 3 B is the circuit diagram of the pixel cell of key diagram 2.
Fig. 4 is the flow chart of steps of method of operating of the display of explanation one embodiment of the invention.
Fig. 5 is the circuit diagram of the display of another embodiment of explanation.
The reference numeral explanation
103,320: transistor
105: liquid crystal capacitance
108: memory capacitance
110,312: sweep trace
112,114,236: data line
200,500: display
210,510: source drive module
212,512: data signal source
214,514: buffer amplifier circuit
220,520: display panel
222,522: pixel cell
230,530: backlight module
232,234,326,532,534: switch
240: potential detecting circuit
A10: operational amplifier
A20: sluggish amplifier
R10, R20: resistance
Vin: input voltage
Vref: reference voltage
VDD: voltage source
323: memory capacitance
325: liquid crystal capacitance
GND: earth terminal
S401, S403, S405, S407, S411: step.
Embodiment
Fig. 2 is the circuit diagram of the display of one embodiment of the invention.Please refer to Fig. 2, the display 200 of present embodiment comprises source drive module 210, display panel 220 and switch 232 and 234.Wherein, source drive module 210 is coupled to display panel 220 by data line 236, and display panel 220 comprises a plurality of pixel cells of arranging with matrix-style 222.In addition, the display 200 of present embodiment also can comprise backlight module 230, and it is in order to provide the display light source of display panel 220.
In the present embodiment, display panel 220 for example is display panels, organic electric-excitation luminescent displaying panel or other display panel that is fit to.Well known, in display 200, except disclosed source drive module 210 of present embodiment and display panel 220, also comprising gate driver circuit, present embodiment omits its introduction.Yet, having in this field and to know that usually the knowledgeable will be appreciated that the assembly that also can comprise other in display 220, present embodiment is not added to give unnecessary details.
Please continue with reference to Fig. 2, source drive module 210 has data signal source 212, and also can have buffer amplifier circuit 214.Wherein, data signal source 212 is sent to each pixel cell 222 by data line 236 with data-signal.When having buffer amplifier circuit 214, data signal source 212 is earlier data-signal to be provided to buffer amplifier circuit 214, by data line 236 data-signal is sent to each pixel cell 222 by buffer amplifier circuit 214 again.Below, be that example describes all there to be buffer amplifier circuit 214.
First end of switch 232 is coupled to buffer amplifier circuit 214, and second end of switch 232 then is coupled to data line 236, whether data-signal is sent to pixel cell 222 with decision.Each switch 234 all is coupled between two adjacent data lines 236.When switch 234 operated in first coupled mode, all data lines 236 were coupled to each other.If switch 234 operates in second coupled mode, data line 236 is to be coupled to earth terminal GND.
Fig. 3 A is the circuit diagram of potential detecting circuit that is applied to the display of Fig. 2.Please refer to Fig. 2 and Fig. 3 A, switch 232 and 234 operator scheme can determine according to a potential detecting circuit 240 detected input voltage levels.Receive an off signal when being reduced to first voltage when potential detecting circuit 240 detects input voltage because of display 200, potential detecting circuit 240 is just opened switch 232, simultaneously switch 234 is operated in first coupled mode.When potential detecting circuit 240 detected input voltage and is reduced to second voltage, potential detecting circuit 240 manipulation of switches 234 were in second coupled mode.
For example, at first setting reference voltage Vref is a specific voltage, for example 2.7 volts or 3.6 volts.Wherein, reference voltage Vref is exactly to determine according to aforesaid first voltage or second voltage.Then, adjust the resistance value ratio of resistance R 10 and R20 again.Thus, when input voltage vin during greater than reference voltage Vref, operational amplifier A 10 can output high level voltages, and export by sluggish amplifier A20 amplifies.When input voltage vin during less than reference voltage Vref, operational amplifier A 10 can the output low level voltages, and export by sluggish amplifier A20 amplifies.What sluggish amplifier A20 amplified output is high level voltage or low level voltage, i.e. the state of the switch that decision and sluggish amplifier A20 couple.
Fig. 3 B is the circuit diagram of the pixel cell of Fig. 2.Please refer to Fig. 2 and Fig. 3 B, pixel cell 222 can comprise transistor 320, liquid crystal capacitance 325 and memory capacitance 323.The gate terminal of transistor 320 is coupled to sweep trace 312, and first source of transistor 320/drain electrode end is coupled to data line 236, and second source of transistor 320/drain electrode end is coupled to first end of memory capacitance 323.In addition, in the present embodiment, whether the voltage level that second end of memory capacitance 323 is coupled also can detect input voltage according to potential detecting circuit 240 (being illustrated in Fig. 3 A) and be reduced to second voltage, and changes the common electric voltage (V that is coupled during for example by normal running by switch 326
Com, common voltage) and be coupled to earth terminal GND, change the voltage level that second end of memory capacitance 323 is coupled by this, and more effectively improve the power-off ghost shadow phenomenon, but be not limited thereto.Wherein, earth terminal GND also can replace by other voltage level.By this, display 200 can improve the phenomenon of power-off ghost shadow.
For example, source drive module in the present embodiment 210 and switch 232 and 234 can be made on the printed circuit board (PCB) in the lump.
Below, the function mode of pixels illustrated unit 222.When sweep signal was passed to transistor 320 by sweep trace 312, transistor 320 can be enabled and open.At this moment, source drive module 210 is sent to pixel cell 222 with data-signal via data line 236, and by transistor 320 and to memory capacitance 323 chargings.
Fig. 4 is the flow chart of steps of method of operating of the display of one embodiment of the invention.Please merge with reference to Fig. 2, Fig. 3 B and Fig. 4, the method for operating of the display of present embodiment can be applicable to the display 200 of Fig. 2, but is not limited to this.The method of operating of the display of present embodiment comprises the following steps.At first, as described in step S401, detect the input voltage of display 200.When display 200 received an off signal, its input voltage can begin to reduce.
Then, as described in step S403, judge whether input voltage is reduced to first voltage.It should be noted that in the present embodiment, after display receives off signal, be reduced to before first voltage, backlight module 230 can be closed with input voltage.When the input voltage that detects display 200 is reduced to first voltage, then open switch 232, make buffer amplifier circuit 214 data-signal can't be sent to pixel cell 222.Simultaneously, switch 234 operates in first coupled mode, makes data line 236 be coupled to each other (step S405).
And then, transmit enable signal to all crystals pipe 320 by all sweep traces 312.By this, all crystals pipe 320 all can be enabled and open (step S407).Therefore, the memory capacitance 323 of each pixel cell 222 can discharge stored charge by transistor 320, so that the current potential of first end of all memory capacitance 323 neutralizes mutually.
When the current potential of first end of all memory capacitance 323 mutually after the neutralization, each pixel cell 222 on the display panel 220 all can present identical GTG.
When display 200 was LCD, the operator scheme of display panel 220 can be divided into black picture (normally black) of normality and the white picture of normality (normally white).Operator scheme as if display panel 220 is the black picture of normality, and after the current potential of first end of memory capacitance 323 neutralized mutually, pixel cell 222 shown pictures can be than being difficult for seeing noise near dark attitudes.
In addition,, will not have light and penetrate display panel 220, and more can avoid allowing the user see power-off ghost shadow fully by backlight module 230 if backlight module 230 is just closed be reduced to first voltage with input voltage after receiving off signal before.
Then, when the input voltage that detects display 200 is reduced to second voltage, allow switch 234 operate in second coupled mode, so that data line 236 is coupled to earth terminal GND.After input voltage is reduced to second voltage, allow switch 234 operate in second coupled mode, so that data line 236 is coupled to earth terminal GND.That is be, switch 326 can switch at this moment, and the voltage level that makes second end of memory capacitance 323 couple changes, and for example: current potential is by common electric voltage (V
Com, common voltage) and change into earth terminal GND.By this, present embodiment provides memory capacitance 323 another discharge paths and further improves power-off ghost shadow.(step S411)
Fig. 5 is the circuit diagram of the display of another embodiment of the present invention.Please refer to Fig. 5, the display 500 of present embodiment comprises source drive module 510 and display panel 520.The display 500 of present embodiment is similar to the display 200 of Fig. 2, and its difference is the allocation position of switch 532 and 534, and all the other something in common are not given unnecessary details at this.In the present embodiment, switch 532 and 534 is to be integrated in the source drive module 510.Yet the electric property coupling of each member relation is identical with previous embodiment in the present embodiment, therefore has identical advantage with previous embodiment.
In sum, in the method for operating of source drive module of the present invention, display and display, because therefore the conducting mutually when display shuts down of each data line can allow the pixel cell of whole display be in same potential before data line ground connection.By this, can improve the phenomenon of power-off ghost shadow.
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 a little change and retouching, so protection scope of the present invention is as the criterion when looking the claim person of defining of the present invention.
Claims (21)
1. display comprises:
Display panel, this display panel comprise a plurality of pixel cells of arranging with matrix-style;
Source drive module has a data signal source, and this data signal source is coupled to described pixel cell by many data lines;
A plurality of first switches, first end of each first switch is coupled to this data signal source, second end of each first switch then be coupled to described data line one of them; And
A plurality of second switches, each second switch are coupled between the adjacent data line, and when described second switch operated in first coupled mode, described data line was coupled to each other.
2. display as claimed in claim 1, wherein, when described second switch operated in second coupled mode, described data line was coupled to earth terminal.
3. display as claimed in claim 1 more comprises one the 3rd switch, and the 3rd switch is coupled to second end of described memory capacitance, the voltage level that couples in order to second end that changes described memory capacitance; With
Wherein, each pixel cell comprises:
Transistor, this transistorized gate terminal receives one scan signal, this transistorized first source/drain electrode end be coupled to described data line one of them; And
Memory capacitance, first end of this memory capacitance is coupled to this transistorized second source/drain electrode end.
4. display as claimed in claim 1 more comprises a potential detecting circuit, and this potential detecting circuit system determines the operator scheme of described first switch and described second switch according to an input voltage of this display.
5. display as claimed in claim 4, wherein, when this potential detecting circuit detects this input voltage and is reduced to one first voltage, described first switch open, and described second switch operates in first coupled mode.
6. display as claimed in claim 4, more comprise one the 3rd switch, the 3rd switch is coupled to second end of described memory capacitance, wherein, when this potential detecting circuit detects this input voltage and is reduced to one second voltage, described second switch operates in second coupled mode, and the voltage level that couples with second end that changes described memory capacitance of the 3rd switching manipulation.
7. display as claimed in claim 5 more comprises a backlight module, and so that the display light source of this display panel to be provided, this backlight module detects in this potential detecting circuit and closes before this input voltage is reduced to this first voltage.
8. display as claimed in claim 1, wherein, this source drive module has more a buffer amplifier circuit, is coupled between this data signal source and the described data line.
9. display comprises:
Display panel, this display panel comprise a plurality of pixel cells of arranging with matrix-style;
Source drive module comprises:
Data signal source, this data signal source is coupled to described pixel cell by many data lines;
A plurality of first switches, first end of each first switch is coupled to this data signal source, second end of each first switch then be coupled to described data line one of them; And
A plurality of second switches, each second switch are coupled between the adjacent data line, and when described second switch operated in first coupled mode, described data line was coupled to each other.
10. display as claimed in claim 9, wherein, when described second switch operated in second coupled mode, described data line was coupled to earth terminal.
11. display as claimed in claim 9 more comprises one the 3rd switch, the 3rd switch is coupled to second end of described memory capacitance, the voltage level that couples in order to second end that changes described memory capacitance; With
Wherein, each pixel cell comprises:
Transistor, this transistorized gate terminal receives one scan signal, this transistorized first source/drain electrode end be coupled to described data line one of them; And
Memory capacitance, first end of this memory capacitance is coupled to this transistorized second source/drain electrode end.
12. display as claimed in claim 9 more comprises a potential detecting circuit, this potential detecting circuit determines the operator scheme of described first switch and described second switch according to an input voltage of this display.
13. display as claimed in claim 12, wherein, when this potential detecting circuit detects this input voltage and is reduced to one first magnitude of voltage, described first switch open, and described second switch operates in first coupled mode.
14. display as claimed in claim 12, more comprise one the 3rd switch, the 3rd switch is coupled to second end of described memory capacitance, wherein, when this potential detecting circuit detects this input voltage and is reduced to one second voltage, described second switch operates in second coupled mode, and the voltage level that couples with second end that changes described memory capacitance of the 3rd switching manipulation.
15. display as claimed in claim 13 more comprises a backlight module, so that the display light source of this display panel to be provided, this backlight module detects in this potential detecting circuit and closes before this input voltage is reduced to this first voltage.
16. display as claimed in claim 9, wherein, this source drive module has more a buffer amplifier circuit, is coupled between this data signal source and the described data line.
17. the method for operating of a display comprises the following steps:
Detect the input voltage of this display;
When this input voltage is reduced to one first voltage, makes between a data signal source of this display and many data lines to disconnect, and described data line is coupled to each other;
After described data line was coupled to each other, the transistor of all pixel cells of this display of conducting neutralized mutually so that be coupled to the current potential of first end of described transistorized a plurality of memory capacitance, and wherein, described transistor is coupled to described data line; And
At the current potential of first end of described memory capacitance mutually after the neutralization, change the voltage level that second end of described memory capacitance couples.
18. the method for operating of display as claimed in claim 17 wherein, when the voltage level that second end that changes described memory capacitance couples, more comprises making described data line be coupled to earth terminal simultaneously.
19. the method for operating of display as claimed in claim 18, wherein, changing the voltage level that second end of described memory capacitance couples is to carry out after being low to moderate one second voltage when this input voltage by this first voltage drop.
20. the method for operating of display as claimed in claim 17, wherein, changing the voltage level that second end of described memory capacitance couples is to carry out after being low to moderate one second voltage when this input voltage by this first voltage drop.
21. the method for operating of display as claimed in claim 17, wherein, this input voltage is to begin to reduce after this display receives an off signal, after receiving this off signal, be reduced to this first voltage with this input voltage before, more comprise a backlight module of closing this display.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101802245A CN101408699A (en) | 2007-10-11 | 2007-10-11 | Source drive module, display and operation method of display |
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| CNA2007101802245A CN101408699A (en) | 2007-10-11 | 2007-10-11 | Source drive module, display and operation method of display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104485058A (en) * | 2014-12-12 | 2015-04-01 | 厦门天马微电子有限公司 | Test circuit, array substrate and display device |
| CN105139817A (en) * | 2015-09-28 | 2015-12-09 | 京东方科技集团股份有限公司 | Method and device for preventing ghosting phenomenon on liquid crystal display panel |
| CN107068081A (en) * | 2017-03-01 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of display methods and display device |
| CN107293266A (en) * | 2017-07-19 | 2017-10-24 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel and device |
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2007
- 2007-10-11 CN CNA2007101802245A patent/CN101408699A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104485058A (en) * | 2014-12-12 | 2015-04-01 | 厦门天马微电子有限公司 | Test circuit, array substrate and display device |
| CN104485058B (en) * | 2014-12-12 | 2017-07-11 | 厦门天马微电子有限公司 | A kind of test circuit, array base palte and display device |
| CN105139817A (en) * | 2015-09-28 | 2015-12-09 | 京东方科技集团股份有限公司 | Method and device for preventing ghosting phenomenon on liquid crystal display panel |
| CN107068081A (en) * | 2017-03-01 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of display methods and display device |
| US10510291B2 (en) | 2017-03-01 | 2019-12-17 | Boe Technology Group Co., Ltd. | Display method and display device |
| CN107293266A (en) * | 2017-07-19 | 2017-10-24 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel and device |
| WO2019015021A1 (en) * | 2017-07-19 | 2019-01-24 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel and device |
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