WO2014047817A1 - 液晶基板的固化电压施加装置 - Google Patents

液晶基板的固化电压施加装置 Download PDF

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Publication number
WO2014047817A1
WO2014047817A1 PCT/CN2012/082065 CN2012082065W WO2014047817A1 WO 2014047817 A1 WO2014047817 A1 WO 2014047817A1 CN 2012082065 W CN2012082065 W CN 2012082065W WO 2014047817 A1 WO2014047817 A1 WO 2014047817A1
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WIPO (PCT)
Prior art keywords
voltage
diode
inverting input
curing
liquid crystal
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PCT/CN2012/082065
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English (en)
French (fr)
Inventor
王金杰
陈政鸿
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/703,077 priority Critical patent/US9465241B2/en
Publication of WO2014047817A1 publication Critical patent/WO2014047817A1/zh
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation

Definitions

  • the present invention relates to the field of liquid crystal production technology, and in particular to a curing voltage application device for performing liquid alignment of a liquid crystal substrate.
  • liquid crystal panels require an alignment film to determine the initial steering angle (pretilt angle) of the liquid crystal molecules.
  • a method of rubbing an alignment film is used to align liquid crystal molecules.
  • the friction alignment requires high-precision control of the process flow, and the operation of the process flow is not easy to control. Therefore, there has been proposed a photo-alignment technique using a polymer to improve the above-mentioned friction alignment.
  • the photoalignment technique requires first doping a reactive monomer into the liquid crystal layer and applying a liquid crystal layer to a solidification voltage using a voltage application device.
  • the liquid crystal layer is irradiated with ultraviolet UV light at this predetermined voltage, the reactive monomer is polymerized and solidified to simultaneously form a polymer layer on the substrates on both sides of the liquid crystal layer, so that the liquid crystal has a certain pretilt angle.
  • FIG. 1 is a schematic view showing a voltage applied to a liquid crystal substrate by a conventional curing voltage applying device.
  • the liquid crystal substrate 10 performing the light alignment passes through the curing line outside the pixel region 120 (curing Line) 122 and the corresponding cured contact pad (curing The pad 124 is connected to an external voltage applying device 20.
  • the predetermined voltage is applied to the power supply device 220 of the voltage application device 20 to electrically contact the curing contact pads 124 with the plurality of probes 240, and then transmitted to the pixel region 120 via the curing traces 122.
  • the RGB signals are usually separated during curing, but the same voltage is applied by the probe 240, which allows more pictures to be detected later.
  • the voltage applied to the RGB signal must be slightly different. When the voltage floats within a certain range, it will not affect the normal display of the panel. However, when the voltage changes too much, the pretilt angle of the liquid crystal will be different due to the difference of the curing voltage, so that the subsequent screen will appear. An exception on.
  • An object of the present invention is to provide a curing voltage applying device for a liquid crystal substrate to solve the problem of poor alignment quality due to a difference in curing voltage in the prior art.
  • a preferred embodiment of the present invention provides a curing voltage applying device for a liquid crystal substrate, which includes a plurality of probes, a detecting unit, and an alarm unit.
  • the plurality of probes are for applying a voltage to the liquid crystal substrate.
  • the detecting unit is electrically connected to the plurality of probes for determining whether the voltage falls within a threshold range.
  • the alarm unit is electrically connected to the detecting unit, and is configured to issue an alarm prompt when the voltage is not within the threshold range.
  • the detecting unit is a window comparing circuit.
  • the window comparison circuit includes: a first amplifier, a first diode, a second amplifier, and a second diode.
  • the first amplifier has a first non-inverting input, a first inverting input, and a first output, and a first threshold voltage is provided to the first inverting input.
  • the first diode has a first positive electrode and a first negative electrode, and the first positive electrode is coupled to a first output end of the first amplifier.
  • the second amplifier has a second non-inverting input, a second inverting input, and a second output, and a second threshold voltage is provided to the second non-inverting input, wherein the voltage is supplied to the first in-phase An input and the second inverting input.
  • the second diode has a second positive electrode and a second negative electrode, the second positive electrode is connected to the second output end of the second amplifier, and the second negative electrode is first with the first diode The negative poles are connected and connected together to the alarm unit.
  • the window comparison circuit further includes a Zener diode having a positive electrode connected to the ground, and a negative electrode connected to the first negative electrode of the first diode and the second negative electrode of the second diode To the alarm unit.
  • the threshold range is between the first threshold voltage and the second threshold voltage, and the first threshold voltage is greater than the second threshold voltage.
  • the first diode is turned on, the second diode is turned off, and the window comparison circuit outputs an alarm signal to the alarm unit.
  • the first diode is turned off, the second diode is turned on, and the window comparison circuit outputs an alarm signal to the alarm unit;
  • the window comparison circuit outputs zero.
  • the alarm prompt issued by the alarm unit includes an audible, optical or electrical prompt.
  • a curing voltage applying device for a liquid crystal substrate which includes a plurality of probes, a plurality of detecting units, and an alarm unit.
  • the plurality of probes are for applying a plurality of curing voltages to the liquid crystal substrate.
  • the plurality of detecting units are electrically connected to the plurality of probes for determining whether the plurality of curing voltages fall within a threshold range.
  • the alarm unit is electrically connected to the plurality of detecting units for issuing an alarm prompt when the curing voltage of any of the probes is not within the threshold range.
  • the detecting unit is a window comparing circuit equal in number to the plurality of probes for respectively determining the curing voltage of the individual probes.
  • each of the window comparison circuits includes a first amplifier, a first diode, a second amplifier, and a second diode.
  • the first amplifier has a first non-inverting input, a first inverting input, and a first output, and a first threshold voltage is provided to the first inverting input.
  • the first diode has a first positive electrode and a first negative electrode, and the first positive electrode is coupled to a first output end of the first amplifier.
  • the second amplifier has a second non-inverting input, a second inverting input, and a second output, and a second threshold voltage is provided to the second non-inverting input, wherein the corresponding probe is electrically connected to the The first non-inverting input and the second inverting input are described.
  • the second diode has a second positive electrode and a second negative electrode, the second positive electrode is connected to the second output end of the second amplifier, and the second negative electrode is first with the first diode The negative poles are connected and connected together to the alarm unit.
  • the detecting unit implemented by the window comparison circuit of the present invention can monitor the curing voltage from time to time during the curing process, and the alarm unit does not alarm when the curing voltage is within the threshold range; when the curing voltage is not in the When the threshold is within the range, an alarm prompt is issued so that personnel can find it in time. Therefore, the curing voltage applying device of the liquid crystal substrate of the present invention can improve the product yield while reducing the production cost.
  • FIG. 1 is a schematic view showing a voltage applied to a liquid crystal substrate by a conventional curing voltage applying device
  • FIG. 2 is a schematic view of a curing voltage applying device of a liquid crystal substrate according to a first preferred embodiment of the present invention
  • FIG. 3 is a schematic circuit diagram of a detecting unit of the embodiment
  • FIG. 4 is a schematic view of a curing voltage applying device of a liquid crystal substrate according to a second preferred embodiment of the present invention.
  • FIG. 5 is a schematic circuit diagram of the detecting unit of the embodiment.
  • FIG. 2 is a schematic diagram of a curing voltage applying device for a liquid crystal substrate according to a first preferred embodiment of the present invention.
  • the curing voltage applying device 30 of the liquid crystal substrate of the present embodiment is an apparatus for applying a voltage to the liquid crystal substrate in the photo-alignment process flow.
  • the voltage application device of the present invention can also be used in a post-alignment liquid crystal inspection machine and an alignment terminal optical inspection machine.
  • the curing voltage applying device 30 of the liquid crystal substrate of the present embodiment includes a power supply device 310, a plurality of probes 320, a detecting unit 340, and an alarm unit 360.
  • the liquid-aligned liquid crystal substrate 10 is connected to the curing voltage application device 30 of the present embodiment through the curing traces 122 outside the pixel region 120 and the corresponding cured contact pads 124.
  • the predetermined voltage is applied to the power supply device 310 of the voltage application device 30 to electrically contact the curing contact pads 124 with the plurality of probes 320, and then transmitted to the pixel region 120 via the curing traces 122.
  • the power supply device 310 is configured to provide a red, green, and blue (RGB) signal of the liquid crystal substrate 10, and illuminate the liquid crystal substrate 10 with a UV light device (not shown), wherein the RGB signal has The voltage is called the curing voltage.
  • One of the plurality of probes 320 is connected to a plurality of lines 315 to transmit a curing voltage output by the power supply device 310, and one of the plurality of probes 320 contacts the curing contact pad 124 to apply a curing voltage to the pixel region 120.
  • the detecting unit 340 is electrically connected to the plurality of probes 320 for determining whether the voltage falls within a threshold range.
  • the alarm unit 360 is electrically connected to the detecting unit 340, and is configured to issue an alarm prompt when the voltage is not within the threshold range.
  • the detecting unit 340 of the present embodiment is implemented in such a manner that two of the first probes 320 and the last one of the probes 320 are respectively connected. Therefore, it can be understood that if the first probe 320 and the last probe 320 both fall within the threshold range, substantially all of the curing voltage supplied to the cured contact pad 124 is within the threshold range. Therefore, the alarm unit 360 does not issue an alert prompt. However, when the voltage is not within the threshold range, the alarm unit 360 issues an alarm prompt so that the person can find it in time.
  • FIG. 3 is a schematic circuit diagram of the detecting unit 340 of the embodiment.
  • the detecting unit 340 is a window comparing circuit 400.
  • the window comparison circuit 400 includes a first amplifier A1, a first diode D1, a second amplifier A2, a second diode A2, a first resistor R1, a second resistor R2, and a Zener. Diode Dz.
  • the first amplifier A1 has a first non-inverting input 422, a first inverting input 424 and a first output 426, and a first threshold voltage Vt1 is supplied to the first inverting input 424.
  • the first diode D1 has a first positive electrode 442 and a first negative electrode 444, and the first positive electrode 442 is connected to the first output end 426 of the first amplifier A1.
  • the second amplifier A2 has a second non-inverting input 432, a second inverting input 434, and a second output 436, and a second threshold voltage Vt2 is provided to the second non-inverting input 432, wherein the voltage (ie, A curing voltage is provided to the first non-inverting input 422 and the second inverting input 434.
  • the second diode D2 has a second positive electrode 452 and a second negative electrode 454.
  • the second positive electrode 452 is connected to the second output end 436 of the second amplifier A2.
  • a first negative electrode 444 of a diode D1 is coupled and coupled to the alarm unit 360.
  • the second negative electrode 454 and the first negative electrode 444 are connected to the alarm unit 360 and further have a first resistor R1 and a second resistor R2 connected in parallel.
  • the window comparison circuit 400 further includes a Zener diode Dz having a positive electrode connected to the ground, a negative electrode, and the first negative electrode 444 and the second diode D2 of the first diode D1.
  • the second negative electrode 454 is connected and connected to the alarm unit 360.
  • the threshold range is between the first threshold voltage Vt1 and the second threshold voltage Vt2, and the difference between the two voltages is a window width.
  • the first threshold voltage Vt1 is greater than the second threshold voltage Vt2.
  • the first diode D1 is turned on, and the second diode D2 is turned off, and the window is compared.
  • Circuit 400 outputs an alarm signal to the alarm unit 360.
  • the alarm signal output to the alarm unit 360 is the Zener voltage.
  • the alarm unit 360 prompts an alarm according to an alarm signal, wherein the alarm prompt includes an audible, optical or electrical prompt.
  • the first diode D1 When the voltage is less than the second threshold voltage Vt2, that is, V ⁇ Vt2 ⁇ Vt1, the first diode D1 is turned off, the second diode D2 is turned on, and the window comparison circuit 400 outputs one.
  • An alarm signal is sent to the alarm unit 360.
  • the alarm signal output to the alarm unit 360 is the Zener voltage. Then, the alarm unit 360 prompts an alarm according to an alarm signal, wherein the alarm prompt includes an audible, optical or electrical prompt.
  • the window comparison circuit 400 When the voltage is within the threshold range, that is, Vt2 ⁇ V ⁇ Vt1, the first diode D1 and the second diode D2 are both turned off, and the window comparison circuit 400 outputs zero. . That is to say, the window comparison circuit 400 does not output an alarm signal to the alarm unit 360, so no alarm prompt is generated.
  • the detecting unit 340 of the present invention is not limited to being implemented by the above-described circuit, and other circuits or chips that can achieve the function of the window comparator are also within the scope of the present invention.
  • FIG. 4 is a schematic diagram of a curing voltage applying device for a liquid crystal substrate according to a second preferred embodiment of the present invention.
  • the curing voltage applying device 40 of the liquid crystal substrate of the present embodiment includes a power supply device 410, a plurality of probes 420, a plurality of detecting units 440, and an alarm unit 460.
  • the plurality of probes 420 are used to apply a plurality of curing voltages to the liquid crystal substrate 10.
  • the difference from the above embodiment is that the plurality of detection orders 440 are electrically connected to the plurality of probes 420 for determining whether the plurality of curing voltages fall within a threshold range.
  • the detecting unit 440 is a window comparing circuit equal in number to the plurality of probes 420 for respectively determining the curing voltage of the individual probes 420.
  • the alarm unit 460 is electrically connected to the plurality of detecting units 440 for issuing an alarm prompt when the curing voltage of any of the probes 420 is not within the threshold range.
  • FIG. 5 is a schematic circuit diagram of the detecting unit 440 of the embodiment.
  • the detection unit 440 is a window comparison circuit 500.
  • the window comparison circuit 500 includes a first amplifier A1, a first diode D1, a second amplifier A2, a second diode A2, a first resistor R1, a second resistor R2, and a Zener. Diode Dz.
  • the first amplifier A1 has a first non-inverting input 422, a first inverting input 424 and a first output 426, and a first threshold voltage Vt1 is supplied to the first inverting input 424.
  • the first diode D1 has a first positive electrode 442 and a first negative electrode 444, and the first positive electrode 442 is connected to the first output end 426 of the first amplifier A1.
  • the second amplifier A2 has a second non-inverting input 432, a second inverting input 434, and a second output 436, and a second threshold voltage Vt2 is provided to the second non-inverting input 432, wherein the corresponding probe
  • the pin 420 is electrically connected to the first non-inverting input 422 and the second inverting input 434.
  • the second diode D2 has a second positive electrode 452 and a second negative electrode 454.
  • the second positive electrode 452 is connected to the second output end 436 of the second amplifier A2.
  • a first negative electrode 444 of a diode D1 is coupled and coupled to the alarm unit 460.
  • the second negative electrode 454 and the first negative electrode 444 are connected to the alarm unit 460 and further have a first resistor R1 and a second resistor R2 connected in parallel.
  • the window comparison circuit 500 further includes a Zener diode Dz having a positive electrode connected to the ground, and a negative electrode and the first negative electrode 444 and the second diode D2 of the first diode D1.
  • the second negative electrode 454 is connected and connected to the alarm unit 460.
  • the threshold range is between the first threshold voltage Vt1 and the second threshold voltage Vt2, and the first threshold voltage Vt1 is greater than the second threshold voltage Vt2. Specifically, when the voltage is greater than the first threshold voltage, Vt1, that is, V>Vt1>Vt2, the first diode D1 is turned on, and the second diode D2 is turned off, and the window is compared. Circuit 500 outputs an alarm signal to the alarm unit 460. Then, the alarm unit 460 prompts an alarm according to an alarm signal, wherein the alarm prompt includes an audible, optical or electric prompt.
  • the window comparison circuit 500 When the voltage is less than the second threshold voltage Vt2, that is, V ⁇ Vt2 ⁇ Vt1, the first diode D1 is turned off, the second diode D2 is turned on, and the window comparison circuit 500 outputs one.
  • An alarm signal is sent to the alarm unit 460.
  • the alarm unit 460 prompts an alarm according to an alarm signal, wherein the alarm prompt includes an audible, optical or electric prompt.
  • the output of the window comparison circuit 500 is connected to a single alarm unit 460, so that only one of the curing voltages exceeds the threshold range, the single alarm unit 460 will issue an alarm. Includes sound, light or electricity tips.
  • the window comparison circuit 500 When the voltage is within the threshold range, that is, Vt2 ⁇ V ⁇ Vt1, the first diode D1 and the second diode D2 are both turned off, and the window comparison circuit 500 outputs zero. . That is to say, the window comparison circuit 500 does not output an alarm signal to the alarm unit 460, so no alarm prompt is generated.
  • the detecting unit 340 of the present invention is not limited to being implemented by the above-described circuit, and other circuits or chips that can achieve the function of the window comparator are also within the scope of the present invention.
  • the detecting unit 340 or 440 implemented by the window comparing circuit 400 or 500 can monitor the curing voltage from time to time during the curing process, and when the curing voltage is within the threshold range, the alarm unit 360 or 460 does not Alarm; when the curing voltage is not within the threshold range, an alarm prompt is issued so that the person can find it in time. Therefore, the curing voltage applying device of the liquid crystal substrate of the present invention can improve the product yield while reducing the production cost.

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Description

液晶基板的固化电压施加装置 技术领域
本发明涉及液晶生产技术领域，特别涉及一种进行光配向的液晶基板的固化电压施加装置。
 背景技术
众所周知，液晶面板需要配向膜来决定液晶分子的初始导向角(预倾角)。一般而言采用摩擦配向膜的方法来对液晶分子进行配向。然而，摩擦配向需要高精度地控制工艺流程，该工艺流程的操作不易控制。因此，目前有提出一种利用聚合物的光配向(photo-alignment)技术，以改善上述摩擦配向的缺点。
一般而言，光配向技术需先将反应性单体(monomer)掺杂于液晶层中，并利用电压施加装置施加液晶层一固化电压。在此预定电压下以紫外线UV光照射液晶层，则反应性单体会聚合并固化，以于液晶层两侧的基板上同时形成聚合物层，使液晶有一定的预倾角。
请参照图1，图1为现有固化电压施加装置对液晶基板进行施加电压的示意图。进行光配向的液晶基板10透过像素区域120外的固化走线(curing line)122及相应的固化接触垫(curing pad)124与外部的电压施加装置20连接。上述施加预定电压是透过电压施加装置20的供电装置220以多个探针240电性接触固化接触垫124，再经由固化走线122而传递至像素区域120。
通常在固化时会将RGB的信号分开，但都会由探针240送入相同的电压，这样可以在后续检测更多的画面。然而，由于线路阻抗，机台精度等原因实际，送入RGB信号的电压一定会有细微的差别。当电压在一定范围内浮动时对面板的正常显示是不会有影响的，但当电压变动过大时就会由于固化电压的差别而造成液晶的预倾角不同，进而使后续的画面会出现显示上的异常。此外，而由于在固化时人员是无法看到机台内面板的显示情况的，所以会无法在第一时间排除这种异常。
综上，需要解决现有技术中由于固化电压有差异所导致的配向质量不佳的问题。
 技术问题
本发明的一个目的在于提供一种液晶基板的固化电压施加装置，以解决现有技术中由于固化电压有差异所导致的配向质量不佳的问题。
 技术解决方案
本发明的一优选实施例提供了一种液晶基板的固化电压施加装置，其包括多个探针、检测单元及报警单元。所述多个探针用于向所述液晶基板施加电压。所述检测单元，电性连接于所述多个探针，用于判断所述电压是否落在一阈值范围内。所述报警单元电性连接于所述检测单元，用于当所述电压不在所述阈值范围内时，则发出报警提示。
在本发明优选实施例的电压施加装置中，所述检测单元为窗口比较电路。具体地，所述窗口比较电路包括：第一放大器、第一二极管、第二放大器及第二二极管。所述第一放大器具有第一同相输入端、第一反相输入端及第一输出端，第一阈值电压提供至所述第一反相输入端。所述第一二极管具有第一正极及第一负极，所述第一正极连接于所述第一放大器的第一输出端。所述第二放大器具有第二同相输入端、第二反相输入端及第二输出端，第二阈值电压提供至所述第二同相输入端，其中所述电压提供至所述第一同相输入端及所述第二反相输入端。所述第二二极管具有第二正极及第二负极，所述第二正极连接于所述第二放大器的第二输出端，所述第二负极与所述第一二极管之第一负极连接且一同接至所述报警单元。另外，所述窗口比较电路还包括齐纳二极管，其之正极接地，负极与所述第一二极管的所述第一负极及所述第二二极管的所述第二负极连接且连接至所述报警单元。
在本发明优选实施例的电压施加装置中，所述阈值范围介于所述第一阈值电压与所述第二阈值电压之间，且所述第一阈值电压大于所述第二阈值电压。具体来说，当所述电压大于所述第一阈值电压时，所述第一二极管导通，所述第二二极管截止，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压小于所述第二阈值电压时，所述第一二极管截止，所述第二二极管导通，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压介于所述阈值范围内时，所述第一二极管及所述第二二极管都为截止，所述窗口比较电路输出为零。
在本发明优选实施例的电压施加装置中，所述报警单元发出的报警提示包括声、光或电的提示。
同样地，为解决上述问题，本发明的另一优选实施例提供了一种液晶基板的固化电压施加装置，其包括多个探针、多个检测单元及报警单元。所述多个探针用于向所述液晶基板施加多个固化电压。所述多个检测单元电性连接于所述多个探针，用于判断所述多个固化电压是否落在一阈值范围内。所述报警单元电性连接于所述多个检测单元，用于当任一探针的固化电压不在所述阈值范围内时，则发出报警提示。
在本发明的优选实施例的电压施加装置中，所述检测单元为与所述多个探针数量相等的窗口比较电路，用于分别对单独探针的所述固化电压进行判断。
在本发明的优选实施例的电压施加装置中，所述每一窗口比较电路包括第一放大器、第一二极管、第二放大器及第二二极管。所述第一放大器具有第一同相输入端、第一反相输入端及第一输出端，第一阈值电压提供至所述第一反相输入端。所述第一二极管具有第一正极及第一负极，所述第一正极连接于所述第一放大器的第一输出端。所述第二放大器具有第二同相输入端、第二反相输入端及第二输出端，第二阈值电压提供至所述第二同相输入端，其中所述对应的探针电性连接至所述第一同相输入端及所述第二反相输入端。所述第二二极管具有第二正极及第二负极，所述第二正极连接于所述第二放大器的第二输出端，所述第二负极与所述第一二极管之第一负极连接且一同接至所述报警单元。
 有益效果
相对于现有技术，本发明透过窗口比较电路实施的检测单元可在固化过程中时时监控固化电压，当固化电压在所述阈值范围内时，报警单元不会报警；当固化电压不在所述阈值范围内时，则发出报警提示，以便人员可及时发现。因此本发明的液晶基板的固化电压施加装置可提高产品良率，而降低了生产成本。
 附图说明
图1为现有固化电压施加装置对液晶基板进行施加电压的示意图；
图2为本发明第一优选实施例的液晶基板的固化电压施加装置的示意图；
图3为本实施例的检测单元的电路示意图；
图4为本发明第二优选实施例的液晶基板的固化电压施加装置的示意图；及
图5为本实施例的检测单元的电路示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
请参阅图2，图2为本发明第一优选实施例的液晶基板的固化电压施加装置的示意图。本实施例的液晶基板的固化电压施加装置30是用于在光配向工艺流程中对液晶基板施加电压的设备。然而，本发明的电压施加装置亦可用于配向后液晶检查机及配向终端光学检测机中。如图3所示，本实施例的液晶基板的固化电压施加装置30包括供电设备310、多个探针320、检测单元340及报警单元360。
进行光配向的液晶基板10透过像素区域120外的固化走线122及相应的固化接触垫124与本实施例的固化电压施加装置30连接。上述施加预定电压是透过电压施加装置30的供电装置310以多个探针320电性接触固化接触垫124，再经由固化走线122而传递至像素区域120。
在进行固化工艺时，所述供电设备310用于提供液晶基板10红绿蓝(RGB)的信号，并以一UV光设备(图未示)对液晶基板10进行照射，其中RGB的信号所具有的电压即称为固化电压。所述多个探针320之一端连接多条线路315以传输供电设备310输出的固化电压，所述多个探针320之一端接触固化接触垫124，以向所述像素区域120施加固化电压。
所述检测单元340电性连接于所述多个探针320，用于判断所述电压是否落在一阈值范围内。所述报警单元360电性连接于所述检测单元340，用于当所述电压不在所述阈值范围内时，则发出报警提示。如图2所示，值得注意的是，本实施例的检测单元340是以两个分别连接在首个探针320及最后一个探针320的方式实施。因此，可以理解的是，若首个探针320及最后一个探针320都落在所述阈值范围内时，大体上所有的提供至固化接触垫124的固化电压皆在所述阈值范围内时，因此所述报警单元360不发出警报提示。然而当所述电压不在所述阈值范围内时，报警单元360则发出报警提示，以便人员可以及时发现。
以下将详细介绍本实施例的检测单元340。请参照图3，图3为本实施例的检测单元340的电路示意图。在此实施例中，所述检测单元340为窗口比较电路400。如图3所示，所述窗口比较电路400包括：第一放大器A1、第一二极管D1、第二放大器A2、第二二极管A2、第一电阻R1、第二电阻R2及齐纳二极管Dz。
所述第一放大器A1具有第一同相输入端422、第一反相输入端424及第一输出端426，第一阈值电压Vt1提供至所述第一反相输入端424。所述第一二极管D1具有第一正极442及第一负极444，所述第一正极442连接于所述第一放大器A1的第一输出端426。所述第二放大器A2具有第二同相输入端432、第二反相输入端434及第二输出端436，第二阈值电压Vt2提供至所述第二同相输入端432，其中所述电压(即固化电压)提供至所述第一同相输入端422及所述第二反相输入端434。所述第二二极管D2具有第二正极452及第二负极454，所述第二正极452连接于所述第二放大器A2的第二输出端436，所述第二负极454与所述第一二极管D1之第一负极444连接且一同接至所述报警单元360。值得注意的是，第二负极454与第一负极444连接至报警单元360还串联有第一电阻R1及并联有第二电阻R2。另外，所述窗口比较电路400还包括齐纳二极管Dz，其之正极接地，负极与所述第一二极管D1的所述第一负极444及所述第二二极管D2的所述第二负极454连接且连接至所述报警单元360。
以下将详细说明所述窗口比较电路400的操作原理。所述阈值范围介于所述第一阈值电压Vt1与所述第二阈值电压Vt2之间，两个电压之间的差值为窗口宽度。另外，所述第一阈值电压Vt1大于所述第二阈值电压Vt2。具体来说，当所述电压大于所述第一阈值电压时Vt1，即V>Vt1>Vt2，所述第一二极管D1导通，所述第二二极管D2截止，所述窗口比较电路400输出一报警信号至所述报警单元360。在此实施例中，基于齐纳二极管Dz的作用，输出至报警单元360的报警信号即为齐纳电压。接着，所述报警单元360则根据报警信号发出的报警提示，其中所述报警提示包括声、光或电的提示。
当所述电压小于所述第二阈值电压Vt2时，即V<Vt2<Vt1，所述第一二极管D1截止，所述第二二极管D2导通，所述窗口比较电路400输出一报警信号至所述报警单元360。同样地，基于齐纳二极管Dz的作用，输出至报警单元360的报警信号即为齐纳电压。接着，所述报警单元360则根据报警信号发出的报警提示，其中所述报警提示包括声、光或电的提示。
当所述电压介于所述阈值范围内时，即Vt2<V<Vt1，所述第一二极管D1及所述第二二极管D2都为截止，所述窗口比较电路400输出为零。也就是说，所述窗口比较电路400并无输出报警信号至所述报警单元360，因此无报警提示产生。
需注意的是，本发明的检测单元340并不限制以上述电路实施，其他可达到窗口比较器功能的电路或芯片也在本发明的范围中。
请参阅图4，图4为本发明第二优选实施例的液晶基板的固化电压施加装置的示意图。本实施例的液晶基板的固化电压施加装置40包括供电设备410、多个探针420、多个检测单元440及报警单元460。
同样地，所述多个探针420用于向所述液晶基板10施加多个固化电压。与上述实施例不同之处在于，所述多个检测单440电性连接于所述多个探针420，用于判断所述多个固化电压是否落在阈值范围内。进一步地说，如图4所示，所述检测单元440为与所述多个探针420数量相等的窗口比较电路，用于分别对单独探针420的所述固化电压进行判断。
所述报警单元460电性连接于所述多个检测单元440，用于当任一探针420的固化电压不在所述阈值范围内时，则发出报警提示。
以下将详细介绍本实施例的检测单元440。请参照图5，图5为本实施例的检测单元440的电路示意图。同样地，所述检测单元440为窗口比较电路500。如图5所示，所述窗口比较电路500包括：第一放大器A1、第一二极管D1、第二放大器A2、第二二极管A2、第一电阻R1、第二电阻R2及齐纳二极管Dz。
所述第一放大器A1具有第一同相输入端422、第一反相输入端424及第一输出端426，第一阈值电压Vt1提供至所述第一反相输入端424。所述第一二极管D1具有第一正极442及第一负极444，所述第一正极442连接于所述第一放大器A1的第一输出端426。所述第二放大器A2具有第二同相输入端432、第二反相输入端434及第二输出端436，第二阈值电压Vt2提供至所述第二同相输入端432，其中所述对应的探针420电性连接至所述第一同相输入端422及所述第二反相输入端434。所述第二二极管D2具有第二正极452及第二负极454，所述第二正极452连接于所述第二放大器A2的第二输出端436，所述第二负极454与所述第一二极管D1之第一负极444连接且一同接至所述报警单元460。值得注意的是，第二负极454与第一负极444连接至报警单元460还串联有第一电阻R1及并联有第二电阻R2。另外，所述窗口比较电路500还包括齐纳二极管Dz，其之正极接地，负极与所述第一二极管D1的所述第一负极444及所述第二二极管D2的所述第二负极454连接且连接至所述报警单元460。
以下将详细说明所述窗口比较电路500的操作原理。所述阈值范围介于所述第一阈值电压Vt1与所述第二阈值电压Vt2之间，且所述第一阈值电压Vt1大于所述第二阈值电压Vt2。具体来说，当所述电压大于所述第一阈值电压时Vt1，即V>Vt1>Vt2，所述第一二极管D1导通，所述第二二极管D2截止，所述窗口比较电路500输出一报警信号至所述报警单元460。接着，所述报警单元460则根据报警信号发出的报警提示，其中所述报警提示包括声、光或电的提示。
当所述电压小于所述第二阈值电压Vt2时，即V<Vt2<Vt1，所述第一二极管D1截止，所述第二二极管D2导通，所述窗口比较电路500输出一报警信号至所述报警单元460。接着，所述报警单元460则根据报警信号发出的报警提示，其中所述报警提示包括声、光或电的提示。与上述实施例不同的是，所述窗口比较电路500的输出端都连接至单一个报警单元460，故仅要有任一固化电压超出所述阈值范围时，所述单一报警单元460都会发出报警包括声、光或电的提示。
当所述电压介于所述阈值范围内时，即Vt2<V<Vt1，所述第一二极管D1及所述第二二极管D2都为截止，所述窗口比较电路500输出为零。也就是说，所述窗口比较电路500并无输出报警信号至所述报警单元460，因此无报警提示产生。
需注意的是，本发明的检测单元340并不限制以上述电路实施，其他可达到窗口比较器功能的电路或芯片也在本发明的范围中。
综上所述，本发明透过窗口比较电路400或500实施的检测单元340或440可在固化过程中时时监控固化电压，当固化电压在所述阈值范围内时，报警单元360或460不会报警；当固化电压不在所述阈值范围内时，则发出报警提示，以便人员可及时发现。因此本发明的液晶基板的固化电压施加装置可提高产品良率，而降低了生产成本。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
序列表自由内容

Claims (16)

  1. 一种液晶基板的固化电压施加装置，包括:
    多个探针，用于向所述液晶基板施加多个固化电压；
    多个窗口比较电路，电性连接于所述多个探针，用于判断所述多个固化电压是否落在一阈值范围内；及
    报警单元，电性连接于所述多个检测单元，用于当任一探针的固化电压不在所述阈值范围内时，则发出报警提示。
  2. 根据权利要求1所述的液晶基板的固化电压施加装置，其中所述窗口比较电路包括：
    第一放大器，具有第一同相输入端、第一反相输入端及第一输出端，第一阈值电压提供至所述第一反相输入端；
    第一二极管，具有第一正极及第一负极，所述第一正极连接于所述第一放大器的第一输出端；
    第二放大器，具有第二同相输入端、第二反相输入端及第二输出端，第二阈值电压提供至所述第二同相输入端，其中所述电压提供至所述第一同相输入端及所述第二反相输入端；以及
    第二二极管，具有第二正极及第二负极，所述第二正极连接于所述第二放大器的第二输出端，所述第二负极与所述第一二极管之第一负极连接且一同接至所述报警单元。
  3. 根据权利要求2所述的液晶基板的固化电压施加装置，其中所述窗口比较电路还包括：
    齐纳二极管，其之正极接地，负极与所述第一二极管的所述第一负极及所述第二二极管的所述第二负极连接且连接至所述报警单元。
  4. 根据权利要求2所述的液晶基板的固化电压施加装置，其中所述阈值范围介于所述第一阈值电压与所述第二阈值电压之间，且所述第一阈值电压大于所述第二阈值电压。
  5. 根据权利要求4所述的液晶基板的固化电压施加装置，其中当所述电压大于所述第一阈值电压时，所述第一二极管导通，所述第二二极管截止，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压小于所述第二阈值电压时，所述第一二极管截止，所述第二二极管导通，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压介于所述阈值范围内时，所述第一二极管及所述第二二极管都为截止，所述窗口比较电路输出为零。
  6. 根据权利要求1所述的液晶基板的固化电压施加装置，其中所述报警单元发出的报警提示包括声、光或电的提示。
  7. 一种液晶基板的固化电压施加装置，包括:
    多个探针，用于向所述液晶基板施加电压；
    检测单元，电性连接于所述多个探针，用于判断所述电压是否落在一阈值范围内；及
    报警单元，电性连接于所述检测单元，用于当所述电压不在所述阈值范围内时，则发出报警提示。
  8. 根据权利要求7所述的液晶基板的固化电压施加装置，其中所述检测单元为窗口比较电路。
  9. 根据权利要求7所述的液晶基板的固化电压施加装置，其中所述窗口比较电路包括：
    第一放大器，具有第一同相输入端、第一反相输入端及第一输出端，第一阈值电压提供至所述第一反相输入端；
    第一二极管，具有第一正极及第一负极，所述第一正极连接于所述第一放大器的第一输出端；
    第二放大器，具有第二同相输入端、第二反相输入端及第二输出端，第二阈值电压提供至所述第二同相输入端，其中所述电压提供至所述第一同相输入端及所述第二反相输入端；以及
    第二二极管，具有第二正极及第二负极，所述第二正极连接于所述第二放大器的第二输出端，所述第二负极与所述第一二极管之第一负极连接且一同接至所述报警单元。
  10. 根据权利要求9所述的液晶基板的固化电压施加装置，其中所述窗口比较电路还包括：
    齐纳二极管，其之正极接地，负极与所述第一二极管的所述第一负极及所述第二二极管的所述第二负极连接且连接至所述报警单元。
  11. 根据权利要求9所述的液晶基板的固化电压施加装置，其中所述阈值范围介于所述第一阈值电压与所述第二阈值电压之间，且所述第一阈值电压大于所述第二阈值电压。
  12. 根据权利要求11所述的液晶基板的固化电压施加装置，其中当所述电压大于所述第一阈值电压时，所述第一二极管导通，所述第二二极管截止，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压小于所述第二阈值电压时，所述第一二极管截止，所述第二二极管导通，所述窗口比较电路输出一报警信号至所述报警单元；当所述电压介于所述阈值范围内时，所述第一二极管及所述第二二极管都为截止，所述窗口比较电路输出为零。
  13. 根据权利要求7所述的液晶基板的固化电压施加装置，其中所述报警单元发出的报警提示包括声、光或电的提示。
  14. 一种液晶基板的固化电压施加装置，包括:
    多个探针，用于向所述液晶基板施加多个固化电压；
    多个检测单元，电性连接于所述多个探针，用于判断所述多个固化电压是否落在一阈值范围内；及
    报警单元，电性连接于所述多个检测单元，用于当任一探针的固化电压不在所述阈值范围内时，则发出报警提示。
  15. 根据权利要求14所述的液晶基板的固化电压施加装置，其中所述检测单元为与所述多个探针数量相等的窗口比较电路，用于分别对单独探针的所述固化电压进行判断。
  16. 根据权利要求15所述的液晶基板的固化电压施加装置，其中所述每一窗口比较电路包括：
    第一放大器，具有第一同相输入端、第一反相输入端及第一输出端，第一阈值电压提供至所述第一反相输入端；
    第一二极管，具有第一正极及第一负极，所述第一正极连接于所述第一放大器的第一输出端；
    第二放大器，具有第二同相输入端、第二反相输入端及第二输出端，第二阈值电压提供至所述第二同相输入端，其中所述对应的探针电性连接至所述第一同相输入端及所述第二反相输入端；以及
    第二二极管，具有第二正极及第二负极，所述第二正极连接于所述第二放大器的第二输出端，所述第二负极与所述第一二极管之第一负极连接且一同接至所述报警单元。
PCT/CN2012/082065 2012-09-25 2012-09-26 液晶基板的固化电压施加装置 Ceased WO2014047817A1 (zh)

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CN104317107B (zh) * 2014-09-26 2017-05-24 深圳市华星光电技术有限公司 配向紫外线光学照射机
CN108761852A (zh) * 2018-04-03 2018-11-06 深圳市华星光电半导体显示技术有限公司 一种调控加电探针与玻璃基板接触的装置、系统及方法
CN109061952B (zh) * 2018-09-12 2021-03-23 Tcl华星光电技术有限公司 液晶面板配向系统及液晶面板配向方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020126230A1 (en) * 2000-05-08 2002-09-12 Tomohiro Amano Liquid crystal display device and testing method therefor
US20100045886A1 (en) * 2008-08-19 2010-02-25 Sang-Ki Kwak Mother panel and method of manufacturing display panel using the same
CN201852880U (zh) * 2010-09-03 2011-06-01 深圳创维数字技术股份有限公司 一种电压检测报警模块
JP2012057994A (ja) * 2010-09-07 2012-03-22 Shimadzu Corp アレイ検査装置
CN102636911A (zh) * 2012-04-24 2012-08-15 深圳市华星光电技术有限公司 配向电压施加装置及配向电压施加方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020126230A1 (en) * 2000-05-08 2002-09-12 Tomohiro Amano Liquid crystal display device and testing method therefor
US20100045886A1 (en) * 2008-08-19 2010-02-25 Sang-Ki Kwak Mother panel and method of manufacturing display panel using the same
CN201852880U (zh) * 2010-09-03 2011-06-01 深圳创维数字技术股份有限公司 一种电压检测报警模块
JP2012057994A (ja) * 2010-09-07 2012-03-22 Shimadzu Corp アレイ検査装置
CN102636911A (zh) * 2012-04-24 2012-08-15 深圳市华星光电技术有限公司 配向电压施加装置及配向电压施加方法

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