WO2015074336A1 - 液晶涂布方法以及制造液晶显示面板的方法 - Google Patents
液晶涂布方法以及制造液晶显示面板的方法 Download PDFInfo
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- WO2015074336A1 WO2015074336A1 PCT/CN2014/070976 CN2014070976W WO2015074336A1 WO 2015074336 A1 WO2015074336 A1 WO 2015074336A1 CN 2014070976 W CN2014070976 W CN 2014070976W WO 2015074336 A1 WO2015074336 A1 WO 2015074336A1
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- liquid crystal
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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
- G02F1/1341—Filling or closing of cells
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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
- G02F1/1341—Filling or closing of cells
- G02F1/13415—Drop filling process
Definitions
- Liquid crystal coating method and method of manufacturing liquid crystal display panel Liquid crystal coating method and method of manufacturing liquid crystal display panel
- the present invention relates to a liquid crystal coating method.
- the present invention relates to a method of manufacturing a liquid crystal display panel including such a liquid crystal coating method. Background technique
- TFT-LCD thin film field effect transistor liquid crystal display
- PDP plasma display panel
- LED light emitting diode
- a TFT-LCD display Taking the production of a TFT-LCD display as an example, first, two glass substrates which are bonded together are provided, and a circuit matrix or the like is formed on one of the glass substrates, and a color film is formed on the other glass substrate. Liquid crystal is injected between the two glass substrates, and the frame sealant is applied and then the box is placed, and then the subsequent process forms the finished product that we are in contact with.
- liquid crystal injection is the most critical link.
- the quality or volume of the amount of liquid crystal injected cannot be precisely controlled, which causes waste of liquid crystal material. Since the liquid crystal material is very expensive, the profit of the existing production method is correspondingly low.
- the inaccurate control of the amount of liquid crystal may cause various quality problems in the finished display, such as defects such as uneven brightness of the display caused by too much liquid crystal, and defects such as bubbles caused by less liquid crystal. These deficiencies can result in the retirement or downgrade of the final product.
- the present invention proposes a liquid crystal coating method by which the amount of liquid crystal added can be effectively controlled, thereby improving the yield of the display.
- the present invention also relates to a method of fabricating a liquid crystal display panel including such a liquid crystal coating method.
- a liquid crystal coating method comprising:
- Step 1 providing a frame on the side of the first transparent substrate on the side of the substrate, and step 2: applying a quantitative liquid crystal in the area surrounded by the frame;
- Step 3 bonding the second transparent substrate to the surface of the first transparent substrate coated with the liquid crystal:
- Step 4 Under the action of the second transparent substrate, the liquid crystal is covered with the area of the frame.
- the liquid crystal material is always in the area enclosed by the frame, so that when the second transparent substrate is disposed, the liquid crystal material does not overflow, thereby saving the amount of liquid crystal material used, which also reduces the display. Cost of production.
- the applied liquid crystal material can quickly fill the area surrounded by the frame, and does not wait for the time during which the liquid crystal droplets naturally spread and flatten, thereby improving the efficiency of fraud.
- the amount of liquid crystal injected is determined by the volume enclosed by the frame. Pre-applying the area of the liquid crystal coated with the frame can effectively determine the amount of liquid crystal that should be used, thereby avoiding too much or too little liquid crystal filling, and avoiding corresponding problems in the display.
- liquid crystal coating is completed by dropping a plurality of liquid crystal droplets in a region surrounded by the frame.
- the amount of each liquid crystal droplet is equal.
- the application of the liquid crystal by dropping the liquid crystal droplets can easily control the amount of liquid crystal to be filled by controlling the number of liquid crystal droplets, and can be precisely controlled.
- liquid crystal coating is achieved by a flow control that controls the amount of single liquid crystal outflow.
- the flow controller is one of a nozzle injection manifold, an electromagnetic control valve, and a pressure control valve.
- the liquid crystal germanium is evenly distributed in the area of the bezel ring. Dispersing the liquid crystal droplets in this way helps the liquid crystal to quickly fill the area of the frame package and improve the work efficiency.
- the first transparent substrate and the second transparent substrate are glass substrates.
- a method of manufacturing a liquid crystal display panel comprising the method of coating a liquid crystal according to the above.
- the invention has the advantages that: (1) setting a frame on the transparent substrate, and then filling the liquid crystal material into the circled area of the frame, thereby ensuring that the liquid crystal material does not overflow in the subsequent process. Therefore, the amount of liquid crystal material used is saved, and the production cost of the display is lowered. (2) By pressing the liquid crystal droplets on the second transparent substrate, the applied liquid crystal material can quickly fill the area surrounded by the frame, and wait for the liquid crystal droplet to naturally spread and flatten for a long time, thereby improving work efficiency. (3) The amount of liquid crystal injected is determined by the volume enclosed by the bezel, and the amount of each liquid crystal cell is equal.
- the amount of liquid crystal to be filled can be precisely controlled.
- the liquid crystal droplets are evenly distributed in the area surrounded by the frame, which helps the liquid crystal to quickly fill the area of the frame package and improve work efficiency.
- Fig. 3 schematically shows the step of bonding the second transparent substrate.
- the method of coating a liquid crystal according to the present invention comprises the following steps:
- Step 1 A frame 11 protruding from the plane of the substrate is disposed on one side of the first transparent substrate 10, as shown in FIG.
- the first transparent substrate 10 is generally selected as a glass substrate.
- the material of the frame ii can be selected according to needs, for example, red, green, blue resist material, black matrix strip material, spacer material, and the like.
- the height of the bezel 11 needs to be higher than the expected liquid crystal height to enable the inclusion of a liquid crystal material (which will be described later). In one embodiment, the height of the bezel 11 can be selected to be between 1.5 and 2.5 ⁇ , preferably 2 f im.
- the area 12 surrounded by the frame 1 is preferably the same as the display area (not shown) of the liquid crystal display panel, which greatly simplifies the step of piercing the liquid crystal display panel.
- Step 2 Apply a certain amount of liquid crystal to the area 12 surrounded by the frame 11, as shown in Fig. 2.
- the amount of liquid crystal that should be injected is determined by the volume enclosed by the frame, such as the volume and border of the injected liquid crystal.
- the volume enclosed by I I is equal.
- the amount of liquid crystal injected, such as mass, may also be selected in other ways.
- the liquid crystal coating is completed by dropping a plurality of liquid crystal droplets 13 in the region 12 surrounded by the bezel, and the amount of each liquid crystal droplet 13 is controlled to be equal, for example, the mass of each liquid crystal droplet 13 is 0.2 mg.
- the liquid crystal can be conveniently applied by dropping the liquid crystal droplets.
- the number of liquid crystal droplets is controlled to control the amount of liquid crystal to be filled, and can be precisely controlled. Due to the high price of liquid crystal materials, this precise control of the amount of liquid crystal filling helps to reduce production costs.
- the liquid crystal coating is realized by a flow controller capable of controlling the outflow of a single liquid crystal, which is a type of nozzle spray, electromagnetically controlled, and pressure control valve.
- a plurality of liquid crystal droplets B are evenly distributed in the region 12 surrounded by the frame. As shown in FIG. 2, this helps the liquid crystal to quickly fill the region 12 of the frame package, thereby improving work efficiency.
- Step 3 The second transparent substrate 14 is bonded to the surface of the first transparent substrate 10 coated with the liquid crystal, as shown in FIG.
- the second transparent substrate 14 is preferably a glass substrate.
- Step 4 In the case of the second transparent substrate 14, the liquid crystal is covered with the area 12 surrounded by the frame. Under the extrusion of the second transparent substrate 14, the applied liquid crystal material can quickly fill the area 12 surrounded by the frame without waiting for the liquid crystal droplets to naturally spread and flatten, thereby improving work efficiency.
- the present invention also relates to a method of manufacturing a liquid crystal display panel comprising the method of coating a liquid crystal according to the above.
- the area 12 surrounded by the frame U coincides with the display area of the liquid crystal display panel.
- the method of manufacturing the liquid crystal display panel further includes: providing a sealant (not shown) in the region 15 of the first transparent substrate 10 or the second transparent substrate 4 outside the bezel 11 to realize the first transparent substrate 10 And the second transparent substrate 14 is opposite the box.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
一种液晶涂布方法以及制造液晶显示面板的方法。该液晶涂布方法包括:步骤一:在第一透明基板(10)的一个侧面上设置凸出所述基板平面的边框(11),步骤二:向边框(11)所包围的区域(12)内涂布定量的液晶(13);步骤三:将第二透明基板(14)与第一透明基板(10)的涂布了液晶(13)的表面相贴合;步骤四:在第二透明基板(14)的作用下,液晶(13)布满边框(11)包围的区域(12)。根据上述液晶涂布方法以及相应的制造液晶显示面板的方法,能够有效控制液晶添加量,从而提高显示器的成品率,并且降低了生产成本。
Description
液晶涂布方法以及制造液晶显示面板的方法 技术领域
本发明涉及一种液晶涂布方法。 本发明涉及包括这种液晶涂布方法的液晶显 示面板制造方法。 背景技术
隨着平面显示器技术的不断发展, 出现了多种平面显示技术, 例如薄膜场效 应晶体管液晶显示器 即, TFT-LCD) 、 等离子显示面板 (即, PDP) 以及发光 二极管 即, LED) 等。 在众多显示技术中, 液晶显示器技术最为成熟也是最被 消费者接受的技术, 因此主流显示器也多为液晶显示器。
以 TFT- LCD显示器的生产为例, 首先提供两片贴合在一起的玻璃基板, 在 其中一片玻璃基板上形成有电路矩阵等, 而在另一片玻璃基板上形成有彩膜。 在 两片玻璃基板间注入液晶, 涂上封框胶然后对盒, 再经过后续工序就形成了我们 接触到的成品。
在 TFT- LCD显示器的生产过程中, 液晶注入是最为关键的环节。 在现有技 术中, 无法精确控制所注入的液晶量的质量或者体积, 这样就会造成液晶材料的 浪费。 由于液晶材料非常昂贵, 因此现有的生产方式的利润也就相应地较低。 此 夕卜, 液晶量无法精确控制也会使显示器成品出现各种品质问题, 例如液晶量过多 会引起的显示器亮度不均匀等缺陷, 而液晶较少则会引起的气泡等缺陷。 这些不 良都会造成最终产品的报废或者降级。
针对现有技术中所存在的上述技术问题, 本发明提出了一种液晶涂布方法, 通过这种方法, 能够有效控制液晶添加量, 从而提高显示器的成品率。 本发明还 涉及包括这种液晶涂布方法的液晶显示面板制造方法。
1 ) 根据本发明的第一方面, 提出了一种液晶涂布方法, 包括;
步骤一: 在第一透明基板的一个侧面上设置凸出基板平面的边框, 步骤二: ^边框所包围的区域内涂布定量的液晶;
步骤三: 将第二透明基板与第一透明基板的涂布了液晶的表面相贴合: 步骤四: 在第二透明基板的作用下, 液晶布满边框包 的区域。
根据本发明的方法, 于液晶材料始终处于边框圈定的区域内, 因此在设置 第二透明基板时, 液晶村料不会溢出, 从而节省了所使用的液晶材料的量, 这也 降低了显示器的生产成本。 此外, 在第二透明基板的挤压作用下, 所涂布的液晶 材料能够迅速布满边框所包围的区域, 从而不 等待液晶滴自然扩散平展的时 间, 从而提高工诈效率。
2)在根据第 1 )项的一个实施方案中, 在步骤二中, 所注入的液晶的量 ώ边 框围成的体积来确定。 预先使用边框圈定涂布液晶的区域, 能够有效地确定应当 应当使用的液晶量, 从而避免了液晶填充量过多或过少, 也就避免了显示器出现 相应的问题。
3 ) 在根据第 υ 或第 2) 项的一个实施方案中, 在步骤二中, 通过在边框围 成的区域内滴入多个液晶滴而完成液晶涂布。 在一个优选的实施方案中, 每个液 晶滴的量相等。 在已知每滴液晶的量的情况下, 以滴入液晶滴的方式进行涂布液 晶能够方便地通过控制液晶滴的数量来控制所填充的液晶量, 并且能够精确控 制。 在一个具体的实施飼中, 液晶涂布通过能控制单次液晶流出量的控流器而实 现。 这种控流器为喷嘴喷射阔、 电磁控制阀、 压力控制阀中的一种。
4 )在根据第 3 )项的一个实施方案中,液晶漓均匀分布在边框包圈的区域 ή。 以这种方式分散液晶滴,有助于后期液晶快速布满边框包的区域,提高工作效率。
5 ) 在根据第 1 ) 项到第 4) 项中任一个实施方案中, 第一透明基板和第二透 明基板为玻璃基板。
6) 根据本发明的第二方面, 提出了一种制造液晶显示面板的方法, 包括根 据上文所述的涂布液晶的方法。
7)在根据第 6)项的一个实施方案中, 还包括在第一透明基板或第二透明基 板的处于边框夕卜侧的区域设置封框胶以实现将第一透明基板和第二透明基板对 盒。在一个优选的实施倒中,边框包围的区域与液晶显示面板的显示区域相一致。 根据这种制造液晶显示面板的方法不但能够节省液晶材料的使用量, 降低生产成 本, 还缩短了工诈 间, 提高了工作效率。
与现有技术相比, 本发明的优点在于, (1 ) 在透明基板上设置边框, 然后 将液晶材料填充到边框圈定的区域 这样能保证在后续工序中液晶材料不会溢
出, 从而节省了所使用的液晶材料的量, 降低了显示器的生产成本。 (2) 通过 第二透明基板的挤压液晶滴, 所涂布的液晶材料能够迅速布满边框所包围的区 域, 从而不 ]¾等待液晶滴自然扩散平展的时间, 从而提高工作效率。 (3 ) 所注 入的液晶的量由边框围成的体积来确定, 而每个液晶滴的量相等。 这样, 通过控 制液晶滴的数量就能够精确控制所填充的液晶量。 液晶滴均匀分布在边框包围的 区域内, 有助于后期液晶快速布满边框包的区域, 提高工作效率。 附图说明
在下文中将基于实施例并参考跗图来对本发明进行更详细的描述。 其中- 图 1到 2示意性地显示了涂布液晶滴的歩骤;
图 3示意性地显示了贴合第二透明基板的步骤。
在爾图中,相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。 具体实施方式
下面将结合爾图对本发明做进一步说明。
根据本发明的涂布液晶的方法包括以下步骤:
步骤一: 在第一透明基板 10的一个侧面上设置凸出该基板平面的边框 11 , 如图 1所示。 在液晶显示领域中, 第一透明基板 10通常选择为玻璃基板。 边框 i i的材质可根据需要进行选择, 例如可以为红、 绿、 蓝色阻材料、 黑色矩阵条材 料、 间隔物材料等。 边框 11 的高度需要比预计的液晶高度高, 以能够包 I液晶 材料(将在下文中描述)。在一个实施例中,边框 11的高度可以选择为在 1.5- 2.5μίη 之间,优选为 2fim。边框】1包围的区域 12优选为与液晶显示面板的显示区域(未 示出) 相同, 这样就大大简化了液晶显示面板的刺造步骤。
步骤二: 向边框 11所包围的区域 12内涂布定量的液晶, 如图 2所示。 应当 注入的液晶的量由边框 】1 围成的体积来确定, 例如所注入的液晶的体积与边框
I I围成的体积相等, 当然这里也可以选择以其他方式来计量所注入的液晶的量, 例如质量。
优选地, 以在边框围成的区域 12内滴入多个液晶滴 13而完成液晶涂布, 并 且将每个液晶滴 13的量控制为相等, 例如每个液晶滴 13的质量为 0.2mg。 在己 知每滴液晶的量的情况下, 以滴入液晶滴的方式迸行涂布液晶能够方便地通过控
制液晶滴的数量来控制所填充的液晶量, 并且能够精确控制。 由于液晶材料的价 格昂贵,这种精确控制液晶填充量有助于降低生产成本。在一个具体的实施倒中, 液晶涂布通过能控制单次液晶流出量的控流器而实现, 这些控流器为喷嘴喷射 阔、 电磁控制阔、 压力控制阀中的 ·种。 在一个优选的实施例中, 多个液晶滴 B 均匀分布在边框包围的区域 12 内, 如图 2所示, 这有助于后期液晶快速布满边 框包的区域 12, 提高工作效率。
歩骤三:将第二透明基板 14与第一透明基板 10的涂布了液晶的表面相贴合, 如图 3所示。 在液晶显示领域中, 第二透明基板 14优选为玻璃基板。
步骤四; 在第二透明基板 14的作 ]¾下, 液晶布满边框包围的区域 12。 在第 二透明基板 14 的挤压作 ]¾下, 所涂布的液晶材料能够迅速布满边框所包圈的区 域 12, 而不用等待液晶滴】3自然扩散平展的时间, 从而提高工作效率。
本发明还涉及一种制造液晶显示面板的方法, 其包括根据上文所述的涂布液 晶的方法。 在该刺造液晶显示面板的方法中, 边框 U包围的区域 12与液晶显示 面板的显示区域相一致。
此外, 该制造液晶显示面板的方法还包括, 在第 ·透明基板 10 或第二透明 基板】4的处于边框 11外侧的区域 15设置封框胶 (未示出) 以实现将第一透明 基板 10和第二透明基板 14对盒。
虽然己经参考优选实施例对本发明进行了描述, 但在不脱离本发明的范围的 情况下, 可以对其迸行各种改进并且可以用等效物替换其中的部件。 尤其是, 只 要不存在结构冲突, 各个实施例中所提到的各项技术特征均可以任意方式组合起 来。 本发明并不局限于文中公开的特定实施例, 而是包括落入权利要求的范围内 的所有技术方案》
Claims
权利要求书
1 . 一种涂布液晶的方法, 包括:
步骤一: 在第一透明基板的一个侧面上设置凸出所述基板平面的边框, 歩骤二: 向所述边框所包围的区域內涂布定量的液晶;
步骤三: 将第二透明基板与所述第一透明基板的涂布了液晶的表面相贴合; 步骤四; 在所述第二透明基板的作用下, 液晶布满所述边框包圈的区域。
2, 根据权利要求 1 所述的方法, 其中, 在所述步骤二中, 所注入的液晶的 量由所述边框围成的体积来确定。
3. 根据权利要求 2 所述的方法, 其中, 在所述步骤二中, 通过在所述边框 围成的区域内滴入多个液晶滴而完成液晶涂布。
4. 根据权利要求 3 所述的方法, 其中, 所述液晶滴均匀分布在所述边框包 围的区域内。
5. 根据权利要求 3所述的方法, 其中, 所述每个液晶滴的量相等。
6 , 根据权利要求 5 所述的方法, 其中, 所述液晶涂布通过能控制单次液晶 流出量的控流器而实现。
7 , 根据权利要求 6所述的方法, 其中, 所述控流器为喷嘴喷射阀、 电磁控 制阀、 压力控制阀中的一种。
8 , 根据权利要求 5 所述的方法, 其中, 所述第一透明基板和所述第二透明 基板为玻璃基板。
10. 一种制造液晶显示面板的方法, 其中, 包括根据权利要求 1所述的涂布 液晶的方法。
】1 . 一种制造液晶显示面板的方法, 其中, 包括根据权利要求 5所述的涂布 液晶的力-法。
】2. 根据权利要求 n 所述的方法, 其中, 还包括在所述第一透明基板或所 述第二透明基板的处于所述边框外侧的区域设置封框胶以实现将所述第一透明 基板和所述第二透明基板对盒。
13. 根据权利要求 12所述的方法, 其中, 所述边框包围的区域与所述液晶 显示面板的显示区域相一致。
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| KR100929962B1 (ko) * | 2005-03-18 | 2009-12-04 | 후지쯔 가부시끼가이샤 | 액정 표시 소자 |
| CN101825810B (zh) * | 2009-03-06 | 2011-11-09 | 北京京东方光电科技有限公司 | 液晶显示面板及其制造方法 |
| CN102692752B (zh) * | 2012-06-07 | 2015-03-25 | 深圳市华星光电技术有限公司 | 液晶显示面板及其制作方法 |
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| US20050078267A1 (en) * | 2003-10-09 | 2005-04-14 | Nec Lcd Technologies, Ltd. | Method of manufacturing liquid crystal display panel |
| TW200604681A (en) * | 2004-07-23 | 2006-02-01 | Innolux Display Corp | Method for manufacturing liquid crystal display |
| US20060044507A1 (en) * | 2004-08-31 | 2006-03-02 | Samsung Electronics Co., Ltd. | Method of dropping liquid crystal onto a substrate, apparatus for dropping liquid crystal using the same, and method of manufacturing display device using the same |
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