CN101187734B - Liquid crystal display manufacture method - Google Patents
Liquid crystal display manufacture method Download PDFInfo
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- CN101187734B CN101187734B CN2006101568493A CN200610156849A CN101187734B CN 101187734 B CN101187734 B CN 101187734B CN 2006101568493 A CN2006101568493 A CN 2006101568493A CN 200610156849 A CN200610156849 A CN 200610156849A CN 101187734 B CN101187734 B CN 101187734B
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Abstract
The invention discloses a manufacturing method of a liquid crystal display, which comprises steps: providing a liquid crystal display panel which comprises a hardware setting area, measuring the liquid crystal display panel and display pictures of the liquid crystal display panel to ascertain public voltage parameters, burning the public voltage parameters on the hardware setting area, compressing a drive chip on the hardware setting area, and leading the public voltage parameters in the drive chip. The manufacturing method of the liquid crystal display can save manufacturing flow.
Description
Technical field
The invention relates to a kind of LCD manufacture method.
Background technology
LCD is because of characteristics such as have low diathermaneity, volume is compact and power consumption is low, thereby day by day extensive in the use, and along with the ripe and innovation of correlation technique, its kind is also various day by day.LCD relies on the external world that display voltage is provided, and makes liquid crystal deflecting element, thus the brightness of control penetrating LCD device.For avoiding liquid crystal molecule to be subjected to same direction electric field to cause liquid crystal molecule aging, at present, industry generally provides the mode of several voltage positive-negative polarity conversions, to solve the aging problem of liquid crystal molecule.For example, picture conversion (FrameInversion), transverse conversion (Row Inversion) or vertical conversion (ColumnInversion) etc., but the mode of above-mentioned every kind of voltage positive-negative polarity conversion all can cause the film flicker phenomenon.Along with the size of panel of LCD strengthens gradually, therefore the probability that the film flicker phenomenon takes place also increases.In order to solve the film flicker phenomenon, adjust optical effect the best that common electric voltage makes film flicker, promptly determine the best common electric voltage parameter of this display panels, should the best common electric voltage parameter setting in chip for driving, become a very important step in the production LCD flow process.
Seeing also Fig. 1, is a kind of prior art LCD manufacturing flow chart.It is as follows that it comprises step:
Step S110: make display panels; Make a colored filter substrate and a thin film transistor base plate of display panels respectively in advance, fit this colored filter substrate and this thin film transistor base plate, and encapsulated liquid crystal is betwixt.
Step S120: test this display panels; Light this display panels, import the display frame of different color ranges, testing the correlated performance of this display panels, as concealed wire and bright spot whether occurring.
Step S130: pressing chip for driving and flexible circuit board; Cut off the test circuit on this display panels, pressing one chip for driving and a flexible circuit board are on this display panels.
Step S140: check this display panels; Check that this display panels has or not disrepair phenomenon behind this chip for driving of pressing and this flexible circuit board.
Step S150: test display frame, determine best common electric voltage; The film flicker test is carried out in the display frame of this display panels, by the circuit of built-in public voltage generating circuit in this chip for driving and adjustment common electric voltage, thereby can be made corresponding adjustment, to determine the common electric voltage parameter of best common electric voltage.
Please consulting Fig. 2 again, is step test display frame shown in Figure 1, determines the proving installation synoptic diagram of best common electric voltage value.During test, provide a proving installation 100, this proving installation 100 comprises a pattern generator 104, one-off programming burning voltage generator 105 and one-off programming formula controller 106; One display panels 101 to be measured is provided again, and this display panels 101 has a chip for driving 102; This pattern generator 104, this one-off programming burning voltage generator 105 and this one-off programming formula controller 106 electrically connect with this chip for driving 102 respectively.This pattern generator 104 produces the flicker test pattern and imports in this display panels 101, this image information of internal condition in this chip for driving 102 is adjusted common electric voltage, determine best common electric voltage at last, thereby determine the common electric voltage parameter of this best common electric voltage.
Step S160: this common electric voltage parameter of burning; (OneTime Program, OTP) this common electric voltage parameter of burning is to this chip for driving to adopt the one-off programming technology.The digitizing action is carried out in the one-off programming burning, and soon the common electric voltage parameter will be disposable deposits in the chip for driving.This one-off programming burning voltage generator 105 and this one-off programming formula controller 106 carry out this common electric voltage parameter burning that the digitizing action will determine and go in this chip for driving 102.
But, in the LCD manufacturing process, this display panels 101 is carried out the adjustment of film flicker and determines best common electric voltage, need to wait for that this chip for driving 102 is pressed together on this display panels 101, with the circuit of adjusting common electric voltage test pictures is made corresponding adjustment by these chip for driving 102 built-in public voltage generating circuits, to determine the common electric voltage parameter value of best common electric voltage; Burning should the best common electric voltage the common electric voltage parameter in this chip for driving 102.Thereby, need light the flow process of these display panels 101 its correlated performances of test, after the flow process of this chip for driving 102 of pressing, make these display panels 101 display frames to carry out the film flicker test again, determine the common electric voltage parameter of best common electric voltage, thereby manufacturing process is many and complicated.
Summary of the invention
In order to overcome in the prior art, LCD dress device manufacture method flow process is many and complicated, is necessary to provide a kind of LCD manufacture method of saving and simplifying manufacturing process.
A kind of LCD manufacture method, this LCD manufacture method comprises the steps: to provide a display panels, and it comprises a hardware setting district; Test this display panels; This common electric voltage parameter of burning is in this hardware setting district; Pressing one chip for driving imports this common electric voltage parameter in this chip for driving in this hardware setting district, and wherein, the display frame of testing this display panels in this display panels of test is to determine the common electric voltage parameter.
Compared to prior art, LCD manufacture method of the present invention, test this display panels, test the display frame of this display panels simultaneously, the best common electric voltage of determining this display frame is to determine the parameter of this best common electric voltage, it is the common electric voltage parameter, and with this common electric voltage parameter burning on this display panels in the chip for driving with back to be imported pressing, thereby after having saved this chip for driving of pressing and this flexible circuit board, test the display frame of this display panels and the flow process of definite this common electric voltage parameter separately.
Description of drawings
Fig. 1 is a kind of manufacturing process synoptic diagram of prior art LCD.
Fig. 2 is the proving installation synoptic diagram of the test display frame of step shown in Figure 1.
Fig. 3 is the manufacturing process synoptic diagram of LCD first embodiment of the present invention.
Fig. 4 is test fluid LCD panel and the proving installation synoptic diagram of testing display frame.
Fig. 5 is the circuit diagram of the common electric voltage parameter that prestores of step shown in Figure 4.
Fig. 6 is the circuit diagram of the common electric voltage parameter that prestores of second embodiment.
Embodiment
Seeing also Fig. 3, is the manufacturing process synoptic diagram of LCD first embodiment of the present invention.It is as follows that it comprises step:
Step S210: make display panels; Make a colored filter substrate and a thin film transistor base plate respectively in advance, fit again this colored filter substrate and this thin film transistor base plate, last encapsulated liquid crystal is between this colored filter substrate and this thin film transistor base plate.
Step S220: test this display panels and display frame, determine the common electric voltage parameter; Test this display panels thin film transistor base plate correlated performance and this display panels carried out film flicker test and adjusts, to determine the common electric voltage parameter of best common electric voltage.
During test, providing a proving installation 200, see also Fig. 4, is the synoptic diagram of the proving installation 200 of this display panels of test.This proving installation 200 comprises a panel test waveform generator 202, a test inductor 203 and a panel test tool 204.This test waveform generator 202 has the picture of generation and adjusts two kinds of functions of picture, and this panel test jig 204 has one-off programming burning function.One display panels 201 to be measured is provided, this test waveform generator 202 produces test pictures and sends into this display panels 201, light this display panels 201, observe the display frame of this display panels 201, check that this display frame has or not appearance such as bright spot, dim spot, open circuit or short circuit to check that these display panels 201 interior circuits have or not, or make unusually to judge this display panels 201 in this thin film transistor base plate is made, whether to have.Simultaneously, display frame when these test inductor 203 these display panels 201 of induction are lighted, pass induction information back this test waveform generator 202, carry out the flicker test of this display frame, 202 pairs of these display frames of this test waveform generator are adjusted, determining best common electric voltage, thereby determine the common electric voltage parameter of this common electric voltage value, and the common electric voltage parameter of adjusted best common electric voltage is inputed to this panel test jig 204.
Step S230: this common electric voltage parameter of burning; By this panel test jig 204, carry out the common electric voltage parameter one-off programming burning of this best common electric voltage, this display panels 201 is gone in this common electric voltage parameter burning.This display panels 201 has a hardware setting district 2011, and this hardware setting district 2011 is arranged on the thin film transistor base plate (not indicating) of this display panels.This panel test jig 204 is prestored into this common electric voltage parameter in the hardware setting district 2011 of this display panels 201, promptly carry out the digitizing action in this hardware setting district 2011, to should chip for driving the setting of (indicating), high voltage being set at " 1 ", is that the high voltage " 1 " of this common electric voltage parameter correspondence of " 0 " burning or low-voltage " 0 " are in this hardware setting district 2011 with this low voltage set.
Please consulting Fig. 5 again, is the circuit diagram of this common electric voltage parameter of prestoring.This circuit 10 that prestores is arranged on this hardware setting district 2011, and it comprises one first divider resistance 12, one second divider resistance 13, one first impact damper 14, one second impact damper 15, a first input end 1 and one second input end 2.These first divider resistance, 12 1 end ground connection, the other end is in parallel with this first impact damper 14, forms first branch road that prestores.These second divider resistance, 13 1 end ground connection, the other end is in parallel with this second impact damper 15, forms second branch road that prestores.This first input end 1 and this second input end 2 link to each other with this first branch road and second branch road that prestores that prestores respectively, promptly these first divider resistance, 12 these first impact dampers 14 in parallel are connected with this first input end 1, and these second divider resistance, 13 these second impact dampers 15 in parallel are connected with this second input end 2.This panel test jig 204 sends represents digital signal " 1 " high, voltage, by this first input end 1 this digital signal " 1 " is imported this first branch road that prestores, and this digital signal " 1 " is stored in this first impact damper 14.This panel test jig 204 sends the digital signal " 0 " of representing low-voltage, by this second input end 2 this digital signal " 0 " is imported this second branch road that prestores, and this digital signal " 0 " is stored in this second impact damper 15.
Step S240: pressing chip for driving and flexible circuit board; Corresponding pressing one chip for driving and a flexible circuit board are in the hardware setting district 2011 of this display panels 201.Utilize physical method to cut off the test circuit of this display panels 201, pressing one chip for driving and a flexible circuit board make this chip for driving corresponding with this hardware setting district 2011 then.The setting of this chip for driving " 1 " and " 0 " and this hardware setting district 2011 digital signal that prestores is corresponding, thereby can this common electric voltage parameter correspondence that be pre-stored in the hardware setting district 2011 of this display panels 201 be set in this chip for driving according to high voltage signal " 1 ", the anti-setting that pushes away this chip for driving of low voltage signal " 0 " in this hardware setting district 2011.
Step S250: check this display panels; Behind this display panels 201, this display panels 201 has or not the pressing breakage at this chip for driving of pressing and this flexible circuit board in inspection.
Compared to prior art, because in this display panels stage of test, the blinking characteristic of this display panels 201 is determined, will test display frame and be advanced to this display panels stage of test, can not influence follow-up manufacturing process.Thereby the present invention sets this hardware setting district 2011 by before this chip for driving of pressing not on this display panels 201, and this hardware setting district 2011 can store this common electric voltage parameter in advance.To test this display panels 201 is carrying out with step with test display frame, common electric voltage parameter that earlier will be corresponding with this best common electric voltage is burned onto this hardware setting district 2011 again, because behind this display panels 201 of test, test circuit around this display panels 201 will be cut off, and not influence subsequent step and carry out.When this chip for driving of pressing, directly with the common electric voltage parameter in this hardware setting district 2011 counter push away to be set in this chip for driving get final product.From the above mentioned, the present invention merges into same step with the test fluid LCD panel step and the step of the common electric voltage parameter of test display frame and definite this best common electric voltage, thereby can reduce and simplify the manufacturing process of this LCD.
Second embodiment of LCD manufacture method of the present invention and the difference of first embodiment are: in this common electric voltage parameter step of burning, the circuit that prestores that this common electric voltage parameter is prestored into this hardware setting district is inconsistent.Seeing also Fig. 6, is the circuit diagram of this common electric voltage parameter of prestoring.This circuit 20 that prestores is arranged in this hardware setting district (not indicating), and it comprises one first divider resistance 22, one second divider resistance 23, one first impact damper 24, one second impact damper 25, a first input end 3 and one second input end 4.These first divider resistance, 22 1 ends and these first impact damper, 24 ground connection in parallel, the other end are connected with this input end 3 and form first branch road that prestores.These second divider resistance, 23 1 ends and these second impact damper, 25 ground connection in parallel, the other end is connected with this input end 4, forms second branch road that prestores.This first, second the prestore earth terminal of branch road all extends this hardware setting district.This panel test jig sends representative high-tension digital signal " 1 ", by this first input end 3 this digital signal " 1 " is imported this first branch road that prestores, and digital signal " 0 " is stored in this first impact damper 24.This panel test jig sends the digital signal " 0 " of representing low-voltage, by this second input end 4 this digital signal " 0 " is imported this second branch road that prestores, and digital signal " 1 " is stored in this second impact damper 25.This second embodiment can be realized the function consistent with this first embodiment.
Claims (9)
1. LCD manufacture method, this method comprises the steps: to provide a display panels, and it comprises a hardware setting district; Test this display panels and its display frame to determine the common electric voltage parameter; This hardware setting district on this display panels is provided with a circuit that prestores that prestores this common electric voltage parameter, carries out the digitizing action in this hardware setting district, in the circuit that prestores of this common electric voltage parameter of burning in this hardware setting district; Pressing one chip for driving imports this common electric voltage parameter in this chip for driving in this hardware setting district.
2. LCD manufacture method as claimed in claim 1, it is characterized in that: test this display panels and its display frame when determining the common electric voltage parameter, one proving installation is provided, and it comprises a test waveform generator, a measurement jig and an inductor.
3. LCD manufacture method as claimed in claim 2 is characterized in that: this measurement jig receives the signal that this test waveform generator produces, and signal is sent into this display panels to be measured it is lighted, and tests this display panels.
4. LCD manufacture method as claimed in claim 2, it is characterized in that: this measurement jig receives this test waveform generator and produces signal, and signal is sent into this display panels to be measured lights it, the picture that this inductor is responded to this display panels generation feeds back to this waveform generator, the picture that this waveform generator produces this display panels is adjusted and is determined this common electric voltage parameter, the digital signal that sends this common electric voltage parameter correspondence again is to measurement jig, and this measurement jig is burned onto this display panels with this common electric voltage parameter.
5. LCD manufacture method as claimed in claim 4, it is characterized in that: this circuit that prestores comprises a first input end, one second input end, one first divider resistance, one second divider resistance, one first impact damper and one second impact damper, this first divider resistance, one end ground connection, the other end is in parallel with this first impact damper, forms first branch road that prestores; This second divider resistance, one end ground connection, the other end is in parallel with this second impact damper, forms second branch road that prestores; This first input end links to each other with this second branch road that prestores with this first branch road that prestores respectively with this second input end that prestores.
6. LCD manufacture method as claimed in claim 5 is characterized in that: high voltage digital signal is imported this first circuit that prestores by this first input end, stores high voltage digital signal at this first impact damper; Low voltage digital signal is imported this second circuit that prestores by this second input end, stores low voltage digital signal at this second impact damper.
7. LCD manufacture method as claimed in claim 4 is characterized in that: this circuit that prestores comprises one first divider resistance, one second divider resistance, one first impact damper, one second impact damper, a first input end and one second input end; This first divider resistance, one end and this first impact damper ground connection in parallel, the other end are connected with this first input end and form first branch road that prestores; This second divider resistance, one end is connected with this second input end with this second impact damper ground connection in parallel, the other end, forms second branch road that prestores.
8. LCD manufacture method as claimed in claim 7 is characterized in that: high voltage digital signal is imported this first circuit that prestores by this first input end, stores low voltage digital signal at this first impact damper; Low voltage digital signal is imported this second circuit that prestores by this second input end, stores high voltage digital signal at this second impact damper.
9. as claim 6 or 8 described LCD manufacture methods, it is characterized in that: be " 1 " should the chip for driving high voltage appearance setting this high voltage digital signal that stores in this circuit that prestores; This low voltage digital signal that stores in this circuit that prestores of low voltage set in should chip for driving is " 0 "; After this chip for driving of pressing, this high voltage digital signal " 1 " and this low voltage digital signal " 0 " import in this chip for driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2006101568493A CN101187734B (en) | 2006-11-15 | 2006-11-15 | Liquid crystal display manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101568493A CN101187734B (en) | 2006-11-15 | 2006-11-15 | Liquid crystal display manufacture method |
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| CN101187734A CN101187734A (en) | 2008-05-28 |
| CN101187734B true CN101187734B (en) | 2011-02-09 |
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| CN2006101568493A Active CN101187734B (en) | 2006-11-15 | 2006-11-15 | Liquid crystal display manufacture method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607314A (en) * | 2016-03-17 | 2016-05-25 | 浙江新力光电科技有限公司 | Method and device for calibrating flicker degree of liquid crystal display module |
| CN109215607B (en) | 2018-11-12 | 2021-02-26 | 惠科股份有限公司 | Display panel driving method and device and computer equipment |
| CN109491112A (en) * | 2018-11-12 | 2019-03-19 | 深圳市联得自动化装备股份有限公司 | The manufacturing system and production method of liquid crystal display panel |
| CN114743517B (en) * | 2022-04-20 | 2023-10-13 | 深圳市华星光电半导体显示技术有限公司 | Common voltage supply circuit and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177429A (en) * | 1990-05-18 | 1993-01-05 | Toko Kabushiki Kaisha | DC power source circuit |
| CN1527046A (en) * | 2003-03-07 | 2004-09-08 | 友达光电股份有限公司 | LCD Panel testing method and equipment thereof |
| CN1527275A (en) * | 2003-03-04 | 2004-09-08 | 友达光电股份有限公司 | Automatic voltage regulator for common electrode in panel |
| CN1564075A (en) * | 2004-04-21 | 2005-01-12 | 友达光电股份有限公司 | Shared voltage regulation circuit and LCD panel |
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2006
- 2006-11-15 CN CN2006101568493A patent/CN101187734B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177429A (en) * | 1990-05-18 | 1993-01-05 | Toko Kabushiki Kaisha | DC power source circuit |
| CN1527275A (en) * | 2003-03-04 | 2004-09-08 | 友达光电股份有限公司 | Automatic voltage regulator for common electrode in panel |
| CN1527046A (en) * | 2003-03-07 | 2004-09-08 | 友达光电股份有限公司 | LCD Panel testing method and equipment thereof |
| CN1564075A (en) * | 2004-04-21 | 2005-01-12 | 友达光电股份有限公司 | Shared voltage regulation circuit and LCD panel |
Non-Patent Citations (1)
| Title |
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Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Co-patentee after: Chimei Optoelectronics Co., Ltd. Patentee after: Qunkang Technology (Shenzhen) Co., Ltd. Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Co-patentee before: Innolux Display Group Patentee before: Qunkang Technology (Shenzhen) Co., Ltd. |