WO2015039374A1 - 一种液晶显示屏的脱水处理方法 - Google Patents

一种液晶显示屏的脱水处理方法 Download PDF

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WO2015039374A1
WO2015039374A1 PCT/CN2013/087482 CN2013087482W WO2015039374A1 WO 2015039374 A1 WO2015039374 A1 WO 2015039374A1 CN 2013087482 W CN2013087482 W CN 2013087482W WO 2015039374 A1 WO2015039374 A1 WO 2015039374A1
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liquid crystal
display screen
desiccant
treatment method
crystal display
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French (fr)
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徐亮
叶冬
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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 US14/131,266 priority Critical patent/US20160238867A1/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of cells
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2219/00Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of cells
    • G02F1/13415Drop filling process

Definitions

  • the invention relates to a dehydration treatment method for direct contact between a liquid crystal and a desiccant.
  • the Gamma value is derived from the response curve of the CRT, that is, a parameter reflecting the non-linear relationship between the image brightness of the picture tube and the signal voltage of the input electron gun.
  • the electron beam emitted by the tube electron gun and the brightness of the resulting image do not change linearly with the input voltage of the picture tube.
  • the electron current changes according to the exponential curve compared with the input voltage.
  • the input voltage has an index greater than the electron beam. Index. Therefore, the signal in the dark area is darker than the actual situation, and the bright area is higher than the actual situation, that is, the brightness response is nonlinear.
  • the transmittance voltage curve of the liquid crystal display device is also non-linear.
  • the idea of the CRT is also followed, and the Gamma is defined as follows: , where 1 ⁇ is the brightness of the display under the i-th gray level (normalized), i is the gray level, and I is the total gray level, which is generally 256.
  • i is the gray level
  • I is the total gray level, which is generally 256.
  • the gamma value is greater than 1, the luminance of the highlight portion of the image spans the large and the luminance of the dark portion is small; on the contrary, when the gamma value is less than 1, the grayscale portion of the dark portion of the image becomes larger and the grayscale portion of the highlight portion becomes smaller.
  • the main object of the present invention is to provide a method for dehydrating a liquid crystal display having high drying efficiency, which effectively reduces moisture in the liquid crystal, thereby obtaining a stable Gamma value of the liquid crystal.
  • the invention provides a dehydration processing method for a liquid crystal display, which comprises the following steps:
  • Step 1) introducing liquid crystal into a sealed container, wherein the sealed container contains a desiccant, and the moisture in the liquid crystal is absorbed by the desiccant to control the water content in the liquid crystal to be 25 ppm or less;
  • Step 2 introducing the dried liquid crystal into the filter and filtering to remove large-diameter foreign matter
  • Step 3 performing defoaming treatment on the filtered liquid crystal under vacuum
  • Step 4) The liquid crystal after the defoaming treatment is placed in a liquid crystal dropping device, and the liquid crystal is poured onto the substrate by a liquid crystal dropping method (ODF).
  • ODF liquid crystal dropping method
  • the desiccant is a zeolite molecular sieve or a silica gel.
  • the desiccant is in direct contact with the liquid crystal to rapidly absorb moisture in the liquid crystal.
  • step 1) the step A) is further subjected to pretreatment of the desiccant, and the desiccant is pretreated by drying within 200 degrees. After the pretreatment time is 4-5 hours, it is cooled to room temperature. By drying the desiccant, the drying efficiency of the desiccant is greatly improved.
  • the liquid crystal is placed in a closed container for 8-12 hours for drying, and the drying time is greatly shortened.
  • the filter has a pore size of 1-5 ⁇ m.
  • the temperature of the liquid crystal defoaming treatment ranges from 18 to 27 degrees: the defoaming time is from 0.5 to 4 hours.
  • the method for dehydrating a liquid crystal display according to the present invention directly contacts the liquid crystal and the desiccant to quickly absorb the moisture contained in the liquid crystal, and the direct contact method with respect to the existing dehydration process,
  • the drying method is changed, and the contact area between the liquid crystal and the desiccant is increased, the moisture in the liquid crystal is absorbed more effectively, and the efficiency of dehydration is improved, thereby improving the working efficiency of the entire liquid crystal process.
  • the desiccant is preheated, and the moisture released from the desiccant is released by heating, and then applied to the liquid crystal drying process, so that the effect of absorbing water is better, and the efficiency of dehydration is also improved, by controlling the content in the liquid crystal.
  • the amount of water is such that the resulting liquid crystal display has a stable gamma value, and the difference between the gray scale transition and the normal display is reduced.
  • the invention provides A method for dehydrating a liquid crystal display, comprising the steps of:
  • Step 1) introducing liquid crystal into a sealed container, wherein the sealed container contains a desiccant, and the moisture in the liquid crystal is absorbed by the desiccant to control the water content in the liquid crystal to be 25 ppm or less;
  • Step 2 introducing the dried liquid crystal into the filter and filtering to remove large-diameter foreign matter
  • Step 3 performing defoaming treatment on the filtered liquid crystal under vacuum
  • Step 4) The liquid crystal after the defoaming treatment is placed in a liquid crystal dropping device, and the liquid crystal is poured onto the substrate by a liquid crystal dropping method (ODF).
  • ODF liquid crystal dropping method
  • the liquid crystal Before the liquid crystal is dripped, it is dried, filtered, and defoamed to remove moisture and large particulate impurities or foreign matter in the liquid crystal to control the Gamma value of the liquid crystal display.
  • the above dehydration treatment method will be described in detail below.
  • step 1) the liquid crystal is opened, it is introduced into a closed container, and the desiccant is directly contacted with the liquid crystal to quickly absorb the moisture in the liquid crystal, thereby greatly improving the efficiency of drying moisture, rapidly absorbing moisture in the liquid crystal, and shortening
  • the time of drying is 8-12 hours, and the preferred drying time is 10 hours.
  • the moisture content in the liquid crystal is measured by a hygrometer. When the water content reaches 25 ppm or less, the drying is completed; if the moisture content is measured by the hygrometer When the temperature is above 25ppm, the operator is reminded to change the desiccant in time.
  • the desiccant is preferably a zeolite molecular sieve or a silica gel.
  • the silica gel is cleaned and free of ionic dissolution.
  • the silica gel was purified from silicic acid, repeatedly subjected to pickling and caustic washing, and then immersed in high purity hydrochloric acid to obtain the silica gel. Removal of the ion elution in the silicone gel reduces the contamination of the liquid crystal by the desiccant.
  • Step 2 The dried liquid crystal is introduced into a filter container having a pore size of 1-5 ⁇ m to control large-sized foreign matter or particles in the liquid crystal.
  • the filter has a pore diameter of 1 ⁇ m.
  • the filtered liquid crystal enters the next defoaming treatment.
  • Step 3) Defoaming the filtered liquid crystal in a vacuum environment, heating may be performed during the defoaming treatment, or may be carried out at a normal temperature of 18-27 degrees, and the defoaming treatment time is 0.5-4 hours, after defoaming treatment. , remove bubbles in the liquid crystal.
  • the degassing working pressure was 5 Pa
  • the defoaming temperature was 25 ° at room temperature
  • the defoaming time was 1 hour. If the defoaming too high temperature is not conducive to dehydration, if it is lower than room temperature, condensed water will easily appear and the water content in the liquid crystal will increase.
  • Step 4) The liquid crystal after the defoaming treatment is placed in a liquid crystal dropping device, and the liquid crystal is poured onto the substrate by a liquid crystal dropping method (ODF).
  • ODF liquid crystal dropping method
  • Embodiment 2 On the basis of the first embodiment, the step of pretreating the desiccant is added.
  • step A) is used to pretreat the desiccant, and the desiccant is pretreated by drying within 200 degrees. After the pretreatment time is 4-5 hours, it is cooled to room temperature.
  • pretreating the desiccant adjusting the optimal working condition of the desiccant, and pre-removing the moisture released inside the desiccant to make it quickly absorb the liquid when it is in contact with the liquid crystal.
  • the moisture in the solution greatly improves the working efficiency of the desiccant and shortens the drying time.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

一种液晶显示屏的脱水处理方法,包括以下步骤:1)将液晶导入密闭容器中,密闭容器中内置有干燥剂,通过干燥剂将液晶中的水分吸收,控制液晶中的含水量为25ppm以下;2)将干燥后的液晶导入过滤器中,进行过滤,去除大直径异物;3)将过滤后的液晶在真空下进行脱泡处理;4)将脱泡处理后的液晶放入液晶滴注设备中,通过液晶滴注工艺(ODF)将液晶灌注于基板上。将液晶与干燥剂直接接触,以快速地吸收液晶中所含水分,相对于现有的脱水工艺,直接接触的方式,更为有效地吸收液晶中的水分,提高了脱水的效率,通过控制液晶中的含水量,以使得所制成的液晶显示器具有稳定的Gamma值,灰阶过渡和正常的显示之间差异减小。

Description

说 明 书
一种液晶显示屏的脱水处理方法
技术领域
本发明涉及一种液晶与干燥剂直接接触的脱水处理方法。
背景技术
随着消费者对液晶显示屏的画质要求越来越高, 各厂家不断地寻找提高画质的解决方 案。 影响液晶显示屏画质的因素有: Gamma值、色彩数、 对比度、 亮度和响应速度等。其中, Gamma值源于 CRT的响应曲线, 即反映显像管的图像亮度与输入电子枪的信号电压的非线 性关系的一个参数。
对于 CRT显示器而言,显像管电子枪发出的电子束及其生成的图像亮度并不是随显像管 的输入电压线性变化, 电子流与输入电压相比是按照指数曲线变化的, 输入电压的指数要大 于电子束的指数。 所以暗区的信号要比实际情况更暗, 而亮区要比实际情况更高, 即亮度响 应为非线性的。 为衡量这种非线性, 用书写表达式来确定输入输出之间的关系, 就引入了 Gamma这个概念, 抽象简化的表达这样一个幂函数: 输出 =输入 gamma。液晶显示器件的透过 率电压曲线也是非线性的, 在液晶显示器中, 也沿用了 CRT的这种思路, 其 Gamma定义如 下:
Figure imgf000002_0001
, 其中, 1^是显示器在第 i灰阶下的亮度 (归一化后的), i是灰阶, I是总的灰 阶数, 一般是 256。 当 Gamma值大于 1时, 图像的高光部分亮度跨越大而暗调部分亮度跨越 小; 相反, 当 Gamma值小于 1时, 图像的暗调部分灰度跨越变大而高光部分灰度跨越变小。
对于一个液晶显示器件, 其 Gamma值是一个定值, 其通过一组 Gamma电压来实现, 这 组 Gamma电压定义了几个灰阶节点的电压值。 由于对于某个液晶显示器件, 其电压 vs透过 率曲线基本固定, 所以这个显示器的 Gamma值就被固定下来。 通常在液晶显示器件里面, Gamma=2.2, 即允许的波动范围是正负 0.2。在实际的大规模生产过程中, 众多的原因都会影 响到 Gamma值, 包括各种原材料的批次差异, 配向差异, 薄膜晶体管的电压, 电流特性。 由于这些原因的存在, 不同显示器件之间的 Gamma值是有差异的。 当生产控制不好, 这种 差异会被放大, 超出上面所说的正常波动范围。 Gamma值偏差较大时, 灰阶过渡和正常显示 时就会看出差异。
但在现有的液晶显示屏的生产过程中, 液晶开屏后, 会不断地从周围环境中吸收水分, 并且, 在脱泡处理工艺中, 一半仅会除去液晶内溶解的气体, 而对水的去除能力较差。 水分 残留于液晶中, 不仅会裂化液晶, 造成液晶显示屏的寿命降低, 并且, 水会造成液晶介电常 数的改变, 从而影响其电压 VS透过率曲线, 一般液晶选定后, 对于特定的盒厚的情况下, 这条曲线就基本固定。
因此, 亟待提供一种可有效降低液晶中的水分, 以获得稳定的 Gamma值得脱水处理方 法。
发明内容
基于现有技术的不足, 本发明的主要目的在于提供一种干燥效率高的液晶显示屏脱水处 理方法, 有效降低液晶中的水分, 从而使得液晶获得稳定的 Gamma值。
本发明提供了一种液晶显示屏的脱水处理方法, 其包括以下步骤:
步骤 1 )将液晶导入密闭容器中, 所述密闭容器中内置有干燥剂, 通过干燥剂将液晶中的 水分吸收, 控制液晶中的含水量为 25ppm以下;
步骤 2) 将干燥后的液晶导入过滤器中, 进行过滤, 去除大直径异物;
步骤 3 ) 将过滤后的液晶在真空下进行脱泡处理;
步骤 4)将脱泡处理后的液晶放入液晶滴注设备中, 通过液晶滴注工艺(ODF)将液晶灌 注于基板上。
优选地, 在步骤 1 ) 所述干燥剂为沸石分子筛或硅胶。 在密闭容器中, 所述干燥剂与液 晶直接接触, 以快速将液晶中的水分吸收。
优选地, 在步骤 1 )前进一步包括步骤 A)对干燥剂进行预处理, 将干燥剂在 200度以内 进行干燥预处理, 预处理时间为 4-5 小时后, 将其冷却至室温。 通过对干燥剂进行预处理, 以大大提高干燥剂的干燥效率。
优选地, 所述液晶在密闭容器中置放 8-12小时进行干燥, 干燥时间大大缩短。 所述过滤 器的孔径为 1-5μηι。 所述液晶脱泡处理的温度范围为 18-27度: 所述脱泡时间为 0.5-4小时。
与现有技术相比, 本发明一种液晶显示屏的脱水处理方法, 将液晶与干燥剂直接接触, 以快速地吸收液晶中所含水分, 相对于现有的脱水工艺, 直接接触的方式, 改变了干燥方式, 同时增大了液晶与干燥剂的接触面积, 更为有效地吸收液晶中的水分, 提高了脱水的效率, 从而提高了整个液晶制程的工作效率。 并且, 对干燥剂进行预加热, 加热释放出干燥剂中自 带的水分, 再应用于液晶干燥过程中, 这样, 吸收水分的效果更佳, 亦提高了脱水的效率, 通过控制液晶中的含水量, 以使得所制成的液晶显示器具有稳定的 Gamma值, 灰阶过渡和 正常的显示之间差异减小。
具体实施方式
为了有效地控制液晶显示屏产品中的水分含量, 需要在制造工艺中, 对水分含量进行控 制, 减低水分含量, 避免液晶的介电常数的改变, 从而影响电压和透过率曲线。 本发明提供 了一种液晶显示屏的脱水处理方法, 其包括以下步骤:
实施例一
步骤 1 )将液晶导入密闭容器中, 所述密闭容器中内置有干燥剂, 通过干燥剂将液晶中的 水分吸收, 控制液晶中的含水量为 25ppm以下;
步骤 2) 将干燥后的液晶导入过滤器中, 进行过滤, 去除大直径异物;
步骤 3 ) 将过滤后的液晶在真空下进行脱泡处理;
步骤 4)将脱泡处理后的液晶放入液晶滴注设备中, 通过液晶滴注工艺(ODF)将液晶灌 注于基板上。
在液晶进行滴注工艺之前, 先对其进行干燥、 过滤、 脱泡处理, 以去除液晶中的水分和 大颗粒杂质或异物, 以控制液晶显示屏的 Gamma值。 以下对上述脱水处理方法详细说明。
在步骤 1 )液晶开屏后, 将其导入密闭容器中, 所述干燥剂与液晶直接接触, 以快速将液 晶中的水分吸收, 大大提高了干燥水分的效率, 快速地吸收液晶中水分, 缩短了干燥的时间。 在密闭容器中的干燥时间为 8-12小时, 优选的干燥时间为 10小时, 通过湿度计测定液晶中 的水分含量,当水含量达到 25ppm以下时,干燥完毕;若湿度计测得水含量为 25ppm以上时, 提醒操作者及时更换干燥剂。
其中, 所述干燥剂优选为沸石分子筛或硅胶。 所述硅胶经过清洁处理, 无离子溶出物。 从硅酸中提纯硅胶, 反复经过酸洗和碱洗, 然后再在高纯盐酸中浸泡获得所述硅胶。 去除硅 胶中的离子溶出物, 可减少干燥剂对液晶的污染。
步骤 2)将干燥后的液晶导入过滤容器中, 过滤器的孔径为 1-5μηι, 以控制液晶中大尺寸 异物或颗粒, 优选地, 过滤器的孔径为 1μηι。 经过滤后的液晶进入下一步的脱泡处理。
步骤 3 )对过滤后的液晶在真空环境下进行脱泡处理, 脱泡处理时可以加热, 也可以在常 温 18-27度下进行, 脱泡处理的时间为 0.5-4小时, 经过脱泡处理, 去除液晶中的气泡。 在本 实施例中, 脱泡的工作气压为 5pa, 脱泡温度为 25度的室温条件下, 脱泡时间为 1小时。 若 脱泡过高温度不利于脱水, 若低于室温, 容易出现冷凝水, 增加液晶中的含水量。
步骤 4)将脱泡处理后的液晶放入液晶滴注设备中, 通过液晶滴注工艺(ODF)将液晶灌 注于基板上。
实施例二
实施例二在实施一的基础上, 增加了对干燥剂进行预处理的步骤。
在步骤 1 )前进一步包括步骤 A)对干燥剂进行预处理, 将干燥剂在 200度以内进行干燥 预处理, 预处理时间为 4-5小时后, 将其冷却至室温。 通过对干燥剂进行预处理, 调整干燥 剂的最佳工作状态, 预先去除释放出干燥剂内部的水分, 使其与液晶接触时, 可快速吸收液 中的水分, 大大提高了干燥剂的工作效率, 缩短了干燥时间。

Claims

权 利 要 求 书
1、 一种液晶显示屏的脱水处理方法, 其中包括以下步骤:
步骤 1 ) 对干燥剂进行预处理, 将干燥剂在 200度以内进行干燥预处理, 预处理时间为 4-5 小时后, 将其冷却至室温。
步骤 2)将液晶导入密闭容器中, 所述密闭容器中内置有干燥剂, 所述干燥剂与液晶直接接 触, 通过干燥剂将液晶中的水分吸收, 控制液晶中的含水量为 25ppm以下;
步骤 3 ) 将干燥后的液晶导入过滤器中, 进行过滤, 去除大直径异物;
步骤 4) 将过滤后的液晶在真空下进行脱泡处理;
步骤 5 )将脱泡处理后的液晶放入液晶滴注设备中, 通过液晶滴注工艺 (ODF)将液晶灌注 于基板上。
2、 根据权利要求 1所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 )所述干燥剂为沸石分 子筛或硅胶。
3、 根据权利要求 2所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 ) 中, 所述液晶在密闭 容器中置放 8-12小时进行干燥。
4、 根据权利要求 3所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 ) 中, 所述液晶在密闭 容器中置放 10小时进行干燥。
5、 根据权利要求 4所述的液晶显示屏的脱水处理方法, 其中: 在步骤 2) 中, 所述液晶导入过 滤器中进行过滤, 所述过滤器的孔径为 1-5μηι。
6、 根据权利要求 5所述的液晶显示屏的脱水处理方法, 其中: 在步骤 3 ) 中, 所述液晶脱泡处 理的温度范围为 18-27度: 所述脱泡时间为 0.5-4小时。
7、 根据权利要求 6所述的液晶显示屏的脱水处理方法, 其中: 在步骤 3 ) 中, 所述液晶脱泡处 理时, 内部气压为 5Pa, 脱泡温度为 25度, 脱泡时间为 1小时。
8、 一种液晶显示屏的脱水处理方法, 其中包括以下步骤:
步骤 1 ) 将液晶导入密闭容器中, 所述密闭容器中内置有干燥剂, 通过干燥剂将液晶中的水 分吸收, 控制液晶中的含水量为 25ppm以下;
步骤 2) 将干燥后的液晶导入过滤器中, 进行过滤, 去除大直径异物;
步骤 3 ) 将过滤后的液晶在真空下进行脱泡处理;
步骤 4) 将脱泡处理后的液晶放入液晶滴注设备中, 通过液晶滴注工艺 (ODF) 将液晶灌注 于基板上。
9、 根据权利要求 8所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 )所述干燥剂为沸石分 子筛或硅胶。 、 根据权利要求 8所述的液晶显示屏的脱水处理方法, 其中: 在密闭容器中, 所述干燥剂与 液晶直接接触, 以快速将液晶中的水分吸收。
、 根据权利要求 10所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 ) 前进一步包括步骤 A)对干燥剂进行预处理, 将干燥剂在 200度以内进行干燥预处理, 预处理时间为 4-5小时 后, 将其冷却至室温。
、 根据权利要求 11所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 ) 中, 所述液晶在密 闭容器中置放 8-12小时进行干燥。
、 根据权利要求 12所述的液晶显示屏的脱水处理方法, 其中: 在步骤 1 ) 中, 所述液晶在密 闭容器中置放 10小时进行干燥。
、 根据权利要求 12所述的液晶显示屏的脱水处理方法, 其中: 在步骤 2) 中, 所述液晶导入 过滤器中进行过滤, 所述过滤器的孔径为 1-5μηι。
、 根据权利要求 12所述的液晶显示屏的脱水处理方法, 其中: 在步骤 3 ) 中, 所述液晶脱泡 处理的温度范围为 18-27度: 所述脱泡时间为 0.5-4小时。
、 根据权利要求 15所述的液晶显示屏的脱水处理方法, 其中: 在步骤 3 ) 中, 所述液晶脱泡 处理时, 内部气压为 5Pa, 脱泡温度为 25度, 脱泡时间为 1小时。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0557858A (ja) * 1991-08-29 1993-03-09 Fujimori Kogyo Kk 光学用積層シートの製造方法
JP2000258786A (ja) * 1999-03-09 2000-09-22 Nec Akita Ltd 液晶表示装置の液晶注入方法及び液晶注入装置
CN1654109A (zh) * 2005-02-25 2005-08-17 友达光电股份有限公司 减少液晶污染的脱泡系统以及液晶脱泡方法
CN101246286A (zh) * 2007-12-26 2008-08-20 昆山龙腾光电有限公司 液晶滴注装置及其滴注方法
CN102020992A (zh) * 2009-09-11 2011-04-20 私立中原大学 恢复劣化液晶性质的方法
CN103149725A (zh) * 2013-02-20 2013-06-12 北京京东方光电科技有限公司 一种液晶面板制作方法及液晶混合物、液晶面板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0557858A (ja) * 1991-08-29 1993-03-09 Fujimori Kogyo Kk 光学用積層シートの製造方法
JP2000258786A (ja) * 1999-03-09 2000-09-22 Nec Akita Ltd 液晶表示装置の液晶注入方法及び液晶注入装置
CN1654109A (zh) * 2005-02-25 2005-08-17 友达光电股份有限公司 减少液晶污染的脱泡系统以及液晶脱泡方法
CN101246286A (zh) * 2007-12-26 2008-08-20 昆山龙腾光电有限公司 液晶滴注装置及其滴注方法
CN102020992A (zh) * 2009-09-11 2011-04-20 私立中原大学 恢复劣化液晶性质的方法
CN103149725A (zh) * 2013-02-20 2013-06-12 北京京东方光电科技有限公司 一种液晶面板制作方法及液晶混合物、液晶面板

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