CN106444165A - 一种lcd生产的中段工艺 - Google Patents

一种lcd生产的中段工艺 Download PDF

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CN106444165A
CN106444165A CN201611128992.1A CN201611128992A CN106444165A CN 106444165 A CN106444165 A CN 106444165A CN 201611128992 A CN201611128992 A CN 201611128992A CN 106444165 A CN106444165 A CN 106444165A
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ito glass
oriented layer
layer
solidification
baking
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曾周
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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
    • G02F1/133—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
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133723—Polyimide, polyamide-imide
    • 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
    • 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
    • G02F1/133784—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 rubbing

Abstract

一种LCD生产的中段工艺，包括以下步骤，1）涂定向层；2）预烘烤，将涂覆有PI定向层的ITO玻璃在50‑80摄氏度的温度下预烘烤1‑2分钟；3）烘烤，将预烘烤后的ITO玻璃在80‑110摄氏度的问下下烘烤2‑3分钟；4）固化，5）定向，6）丝印边框和导电点，7）喷粉，8)贴合，本发明中，在涂覆PI定向层后先对PI定向层进行预烘烤和烘烤，预烘烤将PI定向层中的溶剂挥发，烘烤则将PI定向层中的N‑甲基吡咯烷酮挥发，这样在固化的时候就没有溶剂和N‑甲基吡咯烷酮的挥发也就不会在PI定向层中形成微小的气泡从而影响液晶显示器的色差。

Description

一种LCD生产的中段工艺
技术领域
本发明涉及一种LCD的生产工艺，尤其涉及一种LCD生产的中段工艺。
背景技术
LCD中段工艺主要包括涂覆PI、摩擦、丝印、喷粉、贴合和固化。然而在现有的工艺中涂覆PI后直接对PI层即定向层进行固化，使得在生成聚亚酰胺膜时由于N-甲基吡咯烷酮和溶剂的挥发在定向层中形成几埃-几十埃的气泡，这使得液晶显示器成型后会有一定的颜色偏差。
发明内容
本发明要解决的技术问题是克服现有技术的不足，提供一种能够减少液晶显示器颜色偏差的LCD生产的中段工艺。
为解决上述技术问题，本发明提出的技术方案为：一种LCD生产的中段工艺，包括以下步骤，1）在蚀刻后的ITO玻璃上均匀的涂覆一层PI定向层即聚酰亚胺层；
2）预烘烤，将涂覆有PI定向层的ITO玻璃在50-80摄氏度的温度下预烘烤1-2分钟，将PI定向层中的溶剂挥发；
3）烘烤，将预烘烤后的ITO玻璃在80-110摄氏度的问下下烘烤2-3分钟，将PI定向层中的N-甲基吡咯烷酮挥发；
4）固化，将烘烤后的ITO玻璃放入350-750摄氏度的温度下固化1-2小时，使得聚酰亚胺脱水环化生成聚亚酰胺膜即定向膜；
5）定向，用毛绒布在涂有定向层的ITO玻璃的定向层上进行摩擦，形成定向层；
6）丝印边框和导电点，将边框胶和导电胶用丝网印刷的方法分别印在ITO玻璃上各自的指定位置；所述导电胶为掺有碳粉的边框胶；
7）喷粉，将支撑间隙粉均匀的撒在ITO玻璃印有边框胶的面上；所述支撑间隙粉为绝缘材质制作而成的圆粉；支撑间隙粉能够保证制作完成后的LCD在经受挤压的时候液晶层的厚度保持一致，从而不至于发生上下两层玻璃ITO层短路的情况。
8)贴合，将ITO玻璃按照上下片进行贴合，并且进行贴合固化，固化条件为温度185℃，时间：4-8小时，压力：0.5-1.5KG/cm 2。
与现有技术相比，本发明的优点在于：本发明中，在涂覆PI定向层后先对PI定向层进行预烘烤和烘烤，预烘烤将PI定向层中的溶剂挥发，烘烤则将PI定向层中的N-甲基吡咯烷酮挥发，这样在固化的时候就没有溶剂和N-甲基吡咯烷酮的挥发也就不会在PI定向层中形成微小的气泡从而影响液晶显示器的色差。
具体实施方式
为了便于理解本发明，下文将结合较佳的实施例对本发明作更全面、细致地描述，但本发明的保护范围并不限于以下具体的实施例。
需要特别说明的是，当某一元件被描述为“固定于、固接于、连接于或连通于”另一元件上时，它可以是直接固定、固接、连接或连通在另一元件上，也可以是通过其他中间连接件间接固定、固接、连接或连通在另一元件上。
除非另有定义，下文中所使用的所有专业术语与本领域技术人员通常理解的含义相同。本文中所使用的专业术语只是为了描述具体实施例的目的，并不是旨在限制本发明的保护范围。
实施例
一种LCD生产的中段工艺，包括以下步骤，1）在蚀刻后的ITO玻璃上均匀的涂覆一层PI定向层即聚酰亚胺层；
2）预烘烤，将涂覆有PI定向层的ITO玻璃在80摄氏度的温度下预烘烤1分钟，将PI定向层中的溶剂挥发；
3）烘烤，将预烘烤后的ITO玻璃在110摄氏度的问下下烘烤2分钟，将PI定向层中的N-甲基吡咯烷酮挥发；
4）固化，将烘烤后的ITO玻璃放入550摄氏度的温度下固化1.2小时，使得聚酰亚胺脱水环化生成聚亚酰胺膜即定向膜；
5）定向，用毛绒布在涂有定向层的ITO玻璃的定向层上进行摩擦，形成定向层；
6）丝印边框和导电点，将边框胶和导电胶用丝网印刷的方法分别印在ITO玻璃上各自的指定位置；导电胶为掺有碳粉的边框胶；
7）喷粉，将支撑间隙粉均匀的撒在ITO玻璃印有边框胶的面上；支撑间隙粉为绝缘材质制作而成的圆粉；
8)贴合，将ITO玻璃按照上下片进行贴合，并且进行贴合固化，固化条件为温度185℃，时间： 8小时，压力： 1.5KG/cm 2。
本实施例中，在涂覆PI定向层后先对PI定向层进行预烘烤和烘烤，预烘烤将PI定向层中的溶剂挥发，烘烤则将PI定向层中的N-甲基吡咯烷酮挥发，这样在固化的时候就没有溶剂和N-甲基吡咯烷酮的挥发也就不会在PI定向层中形成微小的气泡从而影响液晶显示器的色差。

Claims (1)

1.一种LCD生产的中段工艺，其特征在于：包括以下步骤，1）在蚀刻后的ITO玻璃上均匀的涂覆一层PI定向层即聚酰亚胺层；
2）预烘烤，将涂覆有PI定向层的ITO玻璃在50-80摄氏度的温度下预烘烤1-2分钟，将PI定向层中的溶剂挥发；
3）烘烤，将预烘烤后的ITO玻璃在80-110摄氏度的问下下烘烤2-3分钟，将PI定向层中的N-甲基吡咯烷酮挥发；
4）固化，将烘烤后的ITO玻璃放入350-750摄氏度的温度下固化1-2小时，使得聚酰亚胺脱水环化生成聚亚酰胺膜即定向膜；
5）定向，用毛绒布在涂有定向层的ITO玻璃的定向层上进行摩擦，形成定向层；
6）丝印边框和导电点，将边框胶和导电胶用丝网印刷的方法分别印在ITO玻璃上各自的指定位置；所述导电胶为掺有碳粉的边框胶；
7）喷粉，将支撑间隙粉均匀的撒在ITO玻璃印有边框胶的面上；所述支撑间隙粉为绝缘材质制作而成的圆粉；
8)贴合，将ITO玻璃按照上下片进行贴合，并且进行贴合固化，固化条件为温度185℃，时间：4-8小时，压力：0.5-1.5KG/cm 2。
CN201611128992.1A 2016-12-09 2016-12-09 一种lcd生产的中段工艺 Pending CN106444165A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109932842A (zh) * 2019-03-22 2019-06-25 湖南飞优特电子科技有限公司 一种降低pi液成本的方法
CN112379551A (zh) * 2020-11-13 2021-02-19 广州易博士管理咨询有限公司 一种lcos低成本的封装方法及其封装的lcos

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201314989Y (zh) * 2008-11-06 2009-09-23 北京海维元电子有限公司 超薄柔性液晶显示器
CN102809852A (zh) * 2012-08-17 2012-12-05 飞优特科技（深圳）有限公司 一种柔性液晶显示器及其制造方法
CN104845644A (zh) * 2015-05-27 2015-08-19 深圳市华星光电技术有限公司 一种液晶介质组合物
CN105319777A (zh) * 2014-05-28 2016-02-10 三星显示有限公司 液晶显示器件及其制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201314989Y (zh) * 2008-11-06 2009-09-23 北京海维元电子有限公司 超薄柔性液晶显示器
CN102809852A (zh) * 2012-08-17 2012-12-05 飞优特科技（深圳）有限公司 一种柔性液晶显示器及其制造方法
CN105319777A (zh) * 2014-05-28 2016-02-10 三星显示有限公司 液晶显示器件及其制造方法
CN104845644A (zh) * 2015-05-27 2015-08-19 深圳市华星光电技术有限公司 一种液晶介质组合物

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109932842A (zh) * 2019-03-22 2019-06-25 湖南飞优特电子科技有限公司 一种降低pi液成本的方法
CN112379551A (zh) * 2020-11-13 2021-02-19 广州易博士管理咨询有限公司 一种lcos低成本的封装方法及其封装的lcos

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