WO2014183389A1

WO2014183389A1 - Method for stabilizing crystal structure of blue-phase liquid crystal, display apparatus, and manufacturing method

Info

Publication number: WO2014183389A1
Application number: PCT/CN2013/086359
Authority: WO
Inventors: 郭仁炜; 王建
Original assignee: 北京京东方光电科技有限公司
Priority date: 2013-05-13
Filing date: 2013-10-31
Publication date: 2014-11-20
Also published as: CN103242864A

Abstract

Embodiments of the present invention provide a method for stabilizing a crystal structure of a blue-phase liquid crystal, a display apparatus, and a manufacturing method. The method for stabilizing the crystal structure of the blue-phase liquid crystal comprises: adding a carbon nanotube into a blue-phase liquid crystal; and stirring and mixing. The method is suitable for manufacturing a blue-phase liquid crystal display apparatus.

Description

稳定蓝相液晶晶体结构的方法、显示装置及制作方法技术领域 Method, display device and manufacturing method for stabilizing blue phase liquid crystal crystal structure

本发明的实施例涉及一种稳定蓝相液晶晶体结构的方法、显示装置及制作方法。背景技术 Embodiments of the present invention relate to a method, a display device, and a method of fabricating a crystal structure for stabilizing a blue phase liquid crystal. Background technique

近年来，为提高液晶显示器的显示质量，具有快速应答特性和宽视角特性的蓝相液晶材料渐渐受到重视。 In recent years, in order to improve the display quality of liquid crystal displays, blue phase liquid crystal materials having fast response characteristics and wide viewing angle characteristics have been receiving attention.

如图 1所示，蓝相液晶分子是一种立方晶格结构，这种结构接近于晶体，分子排列规整，在这个状态下，液晶显示呈暗态。当在通电的情况下，蓝相液晶分子破坏立方晶格结构，液晶分子沿长轴发生旋转，显示呈亮态。经试验证明，蓝相液晶从光学各向同性态转变为光学各向异性态的响应时间不到 1ms, 比普通液晶的响应速率快了一个数量级。此外，蓝相液晶还具有宽视角等其他优点，被誉为是最具有革命性的下一代平板显示材料。 As shown in Fig. 1, the blue phase liquid crystal molecule is a cubic lattice structure which is close to the crystal and has a regular molecular arrangement. In this state, the liquid crystal display is dark. When energized, the blue phase liquid crystal molecules destroy the cubic lattice structure, and the liquid crystal molecules rotate along the long axis, indicating a bright state. It has been verified by experiments that the response time of the blue phase liquid crystal from the optically isotropic state to the optical anisotropic state is less than 1 ms, which is an order of magnitude faster than that of the ordinary liquid crystal. In addition, blue phase liquid crystals have other advantages such as wide viewing angles, and are regarded as the most revolutionary next-generation flat panel display materials.

蓝相液晶作为胆相液晶的一种相态，其是在向列液晶中加手性化合物形成的。虽然蓝相液晶具有许多光学特性，但其存在的温度范围非常小，大概只在 rc左右，大大限制了蓝相液晶材料在各个领域的应用。发明内容 The blue phase liquid crystal is a phase of the cholesteric liquid crystal which is formed by adding a chiral compound to the nematic liquid crystal. Although blue phase liquid crystals have many optical properties, they exist in a very small temperature range, which is mostly only around rc, which greatly limits the application of blue phase liquid crystal materials in various fields. Summary of the invention

本发明的实施例提供一种稳定蓝相液晶晶体结构的方法、显示装置及制作方法，通过在蓝相液晶中添加碳纳米管，可以稳定蓝相液晶的立方晶格结构，使其存在的温度范围更广。 Embodiments of the present invention provide a method, a display device, and a manufacturing method for stabilizing a blue phase liquid crystal crystal structure. By adding carbon nanotubes to a blue phase liquid crystal, the cubic lattice structure of the blue phase liquid crystal can be stabilized, and the temperature thereof is present. A wider range.

为达到上述目的，本发明的实施例采用如下技术方案： In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

本发明实施例提供了一种稳定蓝相液晶晶体结构的方法，其是向蓝相液晶中添加碳纳米管，并搅拌混合。 Embodiments of the present invention provide a method for stabilizing a blue phase liquid crystal crystal structure by adding carbon nanotubes to a blue phase liquid crystal and stirring and mixing.

可选的，所述蓝相液晶中包括手性化合物，所述蓝相液晶中的手性化合物的质量百分含量为 2%-15%。 Optionally, the blue phase liquid crystal comprises a chiral compound, and the chiral compound in the blue phase liquid crystal has a mass percentage of 2% to 15%.

可选的，所述蓝相液晶中的手性化合物的质量百分含量为 2%。可选的，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为Optionally, the mass percentage of the chiral compound in the blue phase liquid crystal is 2%. Optionally, the mass percentage of the carbon nanotubes in the mixture of the carbon nanotubes and the blue phase liquid crystal is

1%-10%。 1%-10%.

可选的，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 Optionally, the mass percentage of the carbon nanotubes in the mixture of the carbon nanotubes and the blue phase liquid crystal is

2%。 2%.

本发明实施例提供了一种显示装置，包括：对盒成型的阵列基板和彩膜基板以及填充在所述阵列基板和彩膜基板之间的液晶，其中，所述显示装置为常黑型显示装置，所述液晶为蓝相液晶，且所述蓝相液晶中混合有碳纳米管。 An embodiment of the present invention provides a display device, including: a frame-formed array substrate and a color filter substrate; and a liquid crystal filled between the array substrate and the color filter substrate, wherein the display device is a normally black display. In the device, the liquid crystal is a blue phase liquid crystal, and carbon nanotubes are mixed in the blue phase liquid crystal.

可选的，所述蓝相液晶中的手性化合物的质量百分含量为 2%。 Optionally, the mass percentage of the chiral compound in the blue phase liquid crystal is 2%.

可选的，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 1%-10%。 Optionally, the mass percentage of the carbon nanotubes in the mixture of the carbon nanotubes and the blue phase liquid crystal is from 1% to 10%.

可选的，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 2%。 Alternatively, the mass percentage of carbon nanotubes in the mixture of carbon nanotubes and blue phase liquid crystals is 2%.

可选的，显示装置的阵列基板上设置有公共电极和像素电极。 Optionally, a common electrode and a pixel electrode are disposed on the array substrate of the display device.

可选的，所述公共电极位于所述像素电极的上面。 Optionally, the common electrode is located above the pixel electrode.

可选的，所述像素电极位于所述公共电极的上面。 Optionally, the pixel electrode is located above the common electrode.

可选的，所述公共电极和所述像素电极同层设置。 Optionally, the common electrode and the pixel electrode are disposed in the same layer.

可选的，所述阵列基板上还设置有取向层，且所述取向层为平面取向层；所述彩膜基板上设置有取向层，且所述取向层为平面取向层。 Optionally, an alignment layer is further disposed on the array substrate, and the alignment layer is a planar alignment layer; an alignment layer is disposed on the color filter substrate, and the alignment layer is a planar alignment layer.

本发明实施例提供了一种显示装置的制作方法，包括： The embodiment of the invention provides a method for manufacturing a display device, including:

制备包括蓝相液晶和碳纳米管的混合物； Preparing a mixture comprising a blue phase liquid crystal and carbon nanotubes;

制作阵列基板以及彩膜基板； Making an array substrate and a color film substrate;

将包括蓝相液晶和碳纳米管的混合物填充在阵列基板和彩膜基板之间。可选的，所述制备包括蓝相液晶和碳纳米管的混合物具体为：将蓝相液晶和碳纳米管混合并搅拌。 A mixture including a blue phase liquid crystal and carbon nanotubes is filled between the array substrate and the color filter substrate. Optionally, the preparing comprises a mixture of a blue phase liquid crystal and a carbon nanotube, specifically: mixing and stirring the blue phase liquid crystal and the carbon nanotube.

可选的，所述制作阵列基板包括：在基板上形成像素电极和公共电极。可选的，所述制作阵列基板包括：在基板上形成平面取向层。 Optionally, the fabricating the array substrate comprises: forming a pixel electrode and a common electrode on the substrate. Optionally, the fabricating the array substrate comprises: forming a planar alignment layer on the substrate.

可选的，所述制备彩膜基板包括：在基板上形成平面取向层。本发明实施例提供的一种稳定蓝相液晶晶体结构的方法、显示装置及制作方法，通过在蓝相液晶中添加碳纳米管，所述碳纳米管的线性结构具有一定锚定力，可以稳定蓝相液晶的立方晶格结构，使其存在的温度范围更广。附图说明 Optionally, the preparing the color filter substrate comprises: forming a planar alignment layer on the substrate. A method, a display device and a manufacturing method for stabilizing a blue phase liquid crystal crystal structure provided by an embodiment of the present invention, by adding carbon nanotubes in a blue phase liquid crystal, the linear structure of the carbon nanotubes has a certain anchoring force and can be stabilized The cubic lattice structure of the blue phase liquid crystal makes it have a wider temperature range. DRAWINGS

为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作筒单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, rather than to the present invention. limit.

图 1为蓝相液晶的立方晶格结构示意图； 1 is a schematic view showing a cubic lattice structure of a blue phase liquid crystal;

图 2为碳纳米管的微观结构示意图； 2 is a schematic view showing the microstructure of carbon nanotubes;

图 3为本发明实施例提供的显示装置的驱动电压与显示面板的透过率的曲线图； 3 is a graph of driving voltage of a display device and transmittance of a display panel according to an embodiment of the present invention;

图 4为本发明实施例提供的 ADS型液晶显示装置未加电压的液晶显示示意图； 4 is a schematic diagram of a liquid crystal display without voltage applied to an ADS type liquid crystal display device according to an embodiment of the present invention;

图 5为本发明实施例提供的 ADS型液晶显示装置加电压后的液晶显示示意图； FIG. 5 is a schematic diagram of liquid crystal display after voltage application of an ADS type liquid crystal display device according to an embodiment of the present invention; FIG.

图 6为本发明实施例提供的一种显示装置中阵列基板上公共电极和像素电极示意图。具体实施方式 FIG. 6 is a schematic diagram of a common electrode and a pixel electrode on an array substrate in a display device according to an embodiment of the invention. detailed description

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。 The technical solutions of the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings of the embodiments of the present invention. It is apparent that the described embodiments are part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.

本发明实施例提供了一种稳定蓝相液晶晶体结构的方法。在该方法中，向蓝相液晶中添加碳纳米管，并搅拌混合。 Embodiments of the present invention provide a method of stabilizing a blue phase liquid crystal crystal structure. In this method, carbon nanotubes are added to a blue phase liquid crystal and stirred and mixed.

需要说明的是，蓝相液晶的晶体结构如图 1所示，是立方晶格结构，其存在的温度范围非常小，仅在 1 °C左右，其他温度条件下晶体结构被破坏。如图 2所示，碳纳米管的纳米结构为线性结构，其具有一定锚定力，可用于稳固蓝相液晶的立方晶格结构，可以使蓝相液晶的立方晶格结构存在于更大的温度范围内。 It should be noted that the crystal structure of the blue phase liquid crystal is as shown in Fig. 1, which is a cubic lattice structure, and its temperature range is very small, only about 1 ° C, and the crystal structure is destroyed under other temperature conditions. As shown in FIG. 2, the nanostructure of the carbon nanotube has a linear structure, which has a certain anchoring force and can be used for Stabilizing the cubic lattice structure of the blue phase liquid crystal allows the cubic lattice structure of the blue phase liquid crystal to exist in a larger temperature range.

需要说明的是,蓝相液晶是通过在向列相液晶中添加手性化合物形成的，其中手性化合物的含量不能太高和太低，太高或者太低都形成不了蓝相液晶。例如，手性化合物可以为 CB15 , 但本发明不限于此，而是可以采用任何合适的手性化合物。例如，蓝相液晶的手性化合物的质量百分含量为 2%-15%。例如，所述蓝相液晶中手性化合物的质量百分含量可以为 2%-10%, 5%-15%, 7%等，优选 2%。本发明实施例中均以所述蓝相液晶中手性化合物的质量百分含量为 2%为例进行详细说明。 It should be noted that the blue phase liquid crystal is formed by adding a chiral compound to the nematic liquid crystal, wherein the content of the chiral compound cannot be too high or too low, and the blue phase liquid crystal cannot be formed too high or too low. For example, the chiral compound may be CB15, but the invention is not limited thereto, and any suitable chiral compound may be employed. For example, the chiral compound of the blue phase liquid crystal has a mass percentage of 2% to 15%. For example, the mass percentage of the chiral compound in the blue phase liquid crystal may be 2% to 10%, 5% to 15%, 7% or the like, preferably 2%. In the examples of the present invention, the mass percentage of the chiral compound in the blue phase liquid crystal is 2% as an example for detailed description.

可选的，所述碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 1%-10%, 例如，该质量百分含量可以为 5%-10%, 5%等，优选 2%。本发明实施例中均以所述碳纳米管的质量百分含量为碳纳米管和蓝相液晶的混合物的 2%为例进行详细说明。 Optionally, the mass percentage of the carbon nanotubes in the mixture of the carbon nanotubes and the blue phase liquid crystal is 1%-10%, for example, the mass percentage may be 5%-10%, 5%, etc. Preferably 2%. In the examples of the present invention, the mass percentage of the carbon nanotubes is 2% of the mixture of carbon nanotubes and blue phase liquid crystals as an example.

对于本发明实施例的碳纳米管，例如可以使用 1微米以下的碳纳米管。如果碳纳米管太长，则会影响显示效果。例如，碳纳米管的长度可以为几十至几百纳米，优选 100纳米以上且小于 1微米。 For the carbon nanotubes of the examples of the present invention, for example, carbon nanotubes of 1 μm or less can be used. If the carbon nanotubes are too long, it will affect the display. For example, the length of the carbon nanotubes may be several tens to several hundreds of nanometers, preferably 100 nanometers or more and less than 1 micrometer.

例如，碳纳米管在液晶中是呈网状排列的，这样能够更好地锚定蓝相液晶的排列。 For example, carbon nanotubes are arranged in a network in the liquid crystal, which better anchors the alignment of the blue phase liquid crystal.

本发明实施例提供了一种显示装置，包括：对盒成型的阵列基板和彩膜基板以及填充在所述阵列基板和彩膜基板之间的液晶。例如，所述显示装置为常黑型显示装置，所述液晶为蓝相液晶，且所述蓝相液晶中混合有碳纳米管。 Embodiments of the present invention provide a display device including: a frame-formed array substrate and a color filter substrate; and a liquid crystal filled between the array substrate and the color filter substrate. For example, the display device is a normally black display device, the liquid crystal is a blue phase liquid crystal, and carbon nanotubes are mixed in the blue phase liquid crystal.

蓝相液晶的晶体结构如图 1所示，是立方晶格结构，其存在的温度范围非常小，仅在 rc左右，其他温度条件下晶体结构被破坏。所述碳纳米管，如图 2所示，其为线性结构，具有一定锚定力，能稳定蓝相液晶的立方晶格结构，进而可以使其适用于更大的温度范围。例如，一条碳纳米管可以稳定多个蓝相液晶的立方晶格结构。例如，一般不加稳定材料的蓝相液晶的温度范围在几摄氏度之间，加入碳纳米管后蓝相液晶的稳定温度在 40-50摄氏度之间。 The crystal structure of the blue phase liquid crystal is shown in Fig. 1. It is a cubic lattice structure, and its temperature range is very small, only around rc, and the crystal structure is destroyed under other temperature conditions. The carbon nanotubes, as shown in Fig. 2, have a linear structure and have a certain anchoring force, and can stabilize the cubic lattice structure of the blue phase liquid crystal, thereby making it suitable for a wider temperature range. For example, a carbon nanotube can stabilize the cubic lattice structure of a plurality of blue phase liquid crystals. For example, the temperature of the blue phase liquid crystal which is generally not stabilized is in the range of several degrees Celsius, and the stable temperature of the blue phase liquid crystal after the addition of the carbon nanotubes is between 40 and 50 degrees Celsius.

需要说明的是，液晶显示装置根据加电压和不加电压其光的透过性将其分为 NW ( Normally White, 常白）型液晶显示装置和 NB ( Normally Black, 常黑）型液晶显示装置。例如，常白液晶显示装置是在不施加电压时，液晶透光，显示亮的画面；施加电压时，液晶不透光，显示暗的画面。常见的常白型液晶显示装置如 TN ( Twist Nematic, 扭曲向列）型液晶显示装置。常黑型液晶显示装置是在不施加电压时，液晶不透光，显示暗的画面；施加电压时，液晶透光，显示亮的画面。常见的常黑型液晶显示装置如： VA ( Vertical Alignment,多畴垂直取向 )型、 ADS ( Advanced-Super Dimensional Switching, 高级超维场开关）型以及 IPS ( In Plane Switch, 横向电场效应）型液晶显示装置。本发明实施例提供的所述显示装置可以适用于常黑型液晶显示装置。 It should be noted that the liquid crystal display device has its light transmittance according to the applied voltage and no voltage. It is divided into NW (Normally White) type liquid crystal display device and NB (Normally Black) type liquid crystal display device. For example, in a normally white liquid crystal display device, when a voltage is not applied, the liquid crystal transmits light and a bright screen is displayed; when a voltage is applied, the liquid crystal is opaque, and a dark screen is displayed. A common white-type liquid crystal display device such as a TN (Twist Nematic) type liquid crystal display device. In the normally black liquid crystal display device, when no voltage is applied, the liquid crystal is opaque to display a dark screen; when a voltage is applied, the liquid crystal transmits light and a bright screen is displayed. Commonly used black liquid crystal display devices such as VA (Vertical Alignment), ADS (Advanced-Super Dimensional Switching), and IPS (In Plane Switch) liquid crystal Display device. The display device provided by the embodiment of the invention can be applied to a normally black liquid crystal display device.

例如，如图 4、图 5所示，以 ADS型液晶显示装置为例进行详细说明， For example, as shown in FIG. 4 and FIG. 5, an ADS liquid crystal display device will be described in detail as an example.

ADS型液晶显示装置是利用边缘电场诱导液晶进行显示，其中包括阵列基板 20、彩膜基板 10以及填充于阵列基板 20和彩膜基板 10之间的蓝相液晶 30 以及混合在蓝相液晶 30中的碳纳米管 40。阵列基板 20包括：像素电极 21 和公共电极 22。当显示面板不通电时，如图 4所示，蓝相液晶呈立方晶格结构，显示面板不透光，显示暗态；当显示面板通电时，如图 5所示，像素电极 21和公共电极 22形成边缘电场，蓝相液晶的立方晶格结构被电场破坏，液晶分子发生偏转，实现显示效果。当撤去电场之后，由于碳纳米管对液晶分子具有锚定作用，液晶分子又会恢复到通电之前的蓝相液晶的排布状态，即如图 4所示的状态。需要说明的是，如图 4、图 5所示，每一个碳纳米管可以稳定多个蓝相液晶晶格结构。 The ADS type liquid crystal display device uses a fringe electric field to induce liquid crystal display, and includes an array substrate 20, a color filter substrate 10, and a blue phase liquid crystal 30 filled between the array substrate 20 and the color filter substrate 10 and mixed in the blue phase liquid crystal 30. Carbon nanotubes 40. The array substrate 20 includes: a pixel electrode 21 and a common electrode 22. When the display panel is not energized, as shown in FIG. 4, the blue phase liquid crystal has a cubic lattice structure, and the display panel is opaque to display a dark state; when the display panel is energized, as shown in FIG. 5, the pixel electrode 21 and the common electrode 22 forms a fringe electric field, the cubic lattice structure of the blue phase liquid crystal is destroyed by the electric field, and the liquid crystal molecules are deflected to achieve a display effect. After the electric field is removed, since the carbon nanotubes have an anchoring action on the liquid crystal molecules, the liquid crystal molecules are restored to the arrangement state of the blue phase liquid crystals before the energization, that is, the state shown in Fig. 4. It should be noted that, as shown in FIG. 4 and FIG. 5, each of the carbon nanotubes can stabilize a plurality of blue phase liquid crystal lattice structures.

对于 IPS型以及 VA型等其他常黑型液晶显示装置，其显示原理与 ADS 型液晶显示装置的显示原理相同，在这里就不作赘述。 For other normally black liquid crystal display devices such as IPS type and VA type, the display principle is the same as that of the ADS type liquid crystal display device, and will not be described here.

本发明实施例提供的显示装置，所述显示装置采用蓝相液晶，并通过在蓝相液晶中混合碳纳米管稳固蓝相液晶的立方晶格结构，使得蓝相液晶可用于显示，且蓝相液晶用于显示装置，其响应速度快，视角更宽。 The display device provided by the embodiment of the invention adopts a blue phase liquid crystal, and the blue crystal liquid crystal can be used for display by mixing the carbon nanotubes in the blue phase liquid crystal to stabilize the cubic lattice structure of the blue phase liquid crystal, and the blue phase The liquid crystal is used for a display device, which has a fast response speed and a wider viewing angle.

液晶显示装置利用电场通过液晶控制光透性以显示图像。根据驱动液晶的电场方向，将液晶显示装置大致分为垂直电场驱动型和水平电场驱动型。垂直电场驱动型液晶显示装置在上下基板上相对设置公共电极和像素电极，在所述公共电极和像素电极之间形成垂直的电场以驱动液晶，如 VA型液晶显示装置。水平电场驱动型液晶显示装置在下基板上设置公共电极和像素电极，在公共电极和像素电极之间形成水平的电场以驱动液晶如 ADS型、 IPS 型液晶显示装置。 The liquid crystal display device controls the light transmittance through the liquid crystal using an electric field to display an image. The liquid crystal display device is roughly classified into a vertical electric field drive type and a horizontal electric field drive type in accordance with the electric field direction in which the liquid crystal is driven. The vertical electric field drive type liquid crystal display device is provided with a common electrode and a pixel electrode on the upper and lower substrates, and a vertical electric field is formed between the common electrode and the pixel electrode to drive the liquid crystal, such as a VA type liquid crystal display device. A horizontal electric field driven liquid crystal display device is provided with a common electrode and a pixel electrode on a lower substrate A pole forms a horizontal electric field between the common electrode and the pixel electrode to drive a liquid crystal such as an ADS type, IPS type liquid crystal display device.

例如，所述显示装置在阵列基板上设置有公共电极和像素电极。即所述显示装置为水平电场驱动型液晶显示装置。进一步的，所述阵列基板上的公共电极位于所述像素电极的上面。如图 4、图 5所示，阵列基板 20上公共电极 22位于所述像素电极 21的上面。例如，当所述公共电极位于所述像素电极的上面，则所述公共电极为具有狭缝的条状结构，所述像素电极为平面的板状结构。需要说明的是，本发明实施例中，所述 "上" "下" 以制作阵列基板上各层的先后顺序为依据，例如在先制作的在"下"，在后制作的在 "上"。当然，所述像素电极也可以设置在所述公共电极的上面，且所述像素电极位于所述公共电极的上面，则像素电极为具有狭缝的条状结构，所述公共电极为平面的板状结构。本发明实施例仅以如图 4、图 5所示的，公共电极位于像素电极的上面为例进行详细说明。可选的，所述公共电极与像素电极同层设置。例如，如图 6所示，当所述公共电极和像素电极同层设置时，公共电极 22和像素电极 21成相对的梳状，在公共电极和像素电极之间形成水平电场以驱动液晶偏转进行显示。 For example, the display device is provided with a common electrode and a pixel electrode on the array substrate. That is, the display device is a horizontal electric field drive type liquid crystal display device. Further, a common electrode on the array substrate is located above the pixel electrode. As shown in FIG. 4 and FIG. 5, the common electrode 22 on the array substrate 20 is located above the pixel electrode 21. For example, when the common electrode is located above the pixel electrode, the common electrode is a strip-like structure having slits, and the pixel electrode is a planar plate-like structure. It should be noted that, in the embodiment of the present invention, the "upper" and "lower" are based on the order of the layers on the array substrate, for example, the "below" in the "below" and the "on" in the later. . Of course, the pixel electrode may also be disposed on the upper surface of the common electrode, and the pixel electrode is located above the common electrode, and the pixel electrode is a strip structure having a slit, and the common electrode is a flat plate. Structure. In the embodiment of the present invention, only the common electrode is located above the pixel electrode as shown in FIG. 4 and FIG. Optionally, the common electrode is disposed in the same layer as the pixel electrode. For example, as shown in FIG. 6, when the common electrode and the pixel electrode are disposed in the same layer, the common electrode 22 and the pixel electrode 21 are opposed to each other, and a horizontal electric field is formed between the common electrode and the pixel electrode to drive the liquid crystal deflection. display.

可选的，所述阵列基板上还设置有取向层 23, 且所述取向层 23为平面取向层；所述彩膜基板上设置有取向层 13, 所述取向层 13为平面取向层。需要说明的是，无论是对于 ADS型或者 IPS型液晶显示装置，其阵列基板以及彩膜基板上均设置有取向层，且本发明实施例中所述两种显示装置在阵列基板和彩膜基板上的取向层为平面取向层，其中所述取向层影响液晶的锚定力。 Optionally, the array substrate is further provided with an alignment layer 23, and the alignment layer 23 is a planar alignment layer; the color filter substrate is provided with an alignment layer 13, and the alignment layer 13 is a planar alignment layer. It should be noted that, for the ADS type or IPS type liquid crystal display device, an alignment layer is disposed on the array substrate and the color filter substrate, and the two display devices in the embodiment of the present invention are on the array substrate and the color filter substrate. The upper alignment layer is a planar alignment layer, wherein the alignment layer affects the anchoring force of the liquid crystal.

可选的，所述蓝相液晶的手性化合物的质量百分含量为 2%-15%, 例如，该质量百分含量可以为 2%-10%, 5%-15%, 7%等，优选 2%。本发明实施例中以所述蓝相液晶的手性化合物的质量百分含量为 2%为例进行详细说明。 Optionally, the mass percentage of the chiral compound of the blue phase liquid crystal is 2%-15%, for example, the mass percentage may be 2%-10%, 5%-15%, 7%, etc. Preferably 2%. In the examples of the present invention, the mass percentage of the chiral compound of the blue phase liquid crystal is 2% as an example for detailed description.

可选的，所述碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 1%-10%, 例如，该质量百分含量可以为 5%-10%, 5%等，优选 2%。需要说明的是，在蓝相液晶中添加碳纳米管之后，由于碳纳米管的锚定作用，驱动电压相对较大。图 3为通过实验获得的显示装置的驱动电压与显示面板的透过率的曲线图。如图 3所示，显示装置的驱动电压 Vop接近 11.5V, 且在施加电压的过程中，液晶面板的透过率随着电压的增大而增大，达到一定峰值之后，随着电压的增大而减小。且其随着电压的减小，透过率相应降低。最大透过率接近 10%左右。例如，所述碳纳米管的质量百分含量为碳纳米管和蓝相液晶的混合物的 2%。本发明实施例中的附图 3以所述碳纳米管的质量百分含量为碳纳米管和蓝相液晶的混合物的 2%为基准得出。 Optionally, the mass percentage of the carbon nanotubes in the mixture of the carbon nanotubes and the blue phase liquid crystal is 1%-10%, for example, the mass percentage may be 5%-10%, 5%, etc. Preferably 2%. It should be noted that after the carbon nanotubes are added to the blue phase liquid crystal, the driving voltage is relatively large due to the anchoring action of the carbon nanotubes. 3 is a graph showing the driving voltage of the display device obtained by experiments and the transmittance of the display panel. As shown in FIG. 3, the driving voltage Vop of the display device is close to 11.5V, and During the application of the voltage, the transmittance of the liquid crystal panel increases as the voltage increases, and after a certain peak value, decreases as the voltage increases. And as the voltage decreases, the transmittance decreases accordingly. The maximum transmission rate is close to 10%. For example, the mass percentage of the carbon nanotubes is 2% of a mixture of carbon nanotubes and blue phase liquid crystals. Figure 3 in the embodiment of the present invention is based on the mass percentage of the carbon nanotubes being 2% of the mixture of carbon nanotubes and blue phase liquid crystal.

本发明实施例提供了一种显示装置的制作方法包括： The embodiment of the invention provides a method for manufacturing a display device, including:

步骤 S101、制备包括蓝相液晶和碳纳米管的混合物。 Step S101, preparing a mixture comprising a blue phase liquid crystal and carbon nanotubes.

例如，制备包括蓝相液晶和碳纳米管的混合物包括：将蓝相液晶和碳纳米管混合并搅拌。控制蓝相液晶和碳纳米管的混合比例，使得所述碳纳米管的质量百分含量为混合后的蓝相液晶的 1%-10%, 例如，该质量百分含量可以为 5%-10%, 5%等， 4尤选 2%。 For example, preparing a mixture comprising a blue phase liquid crystal and carbon nanotubes comprises: mixing and stirring a blue phase liquid crystal and a carbon nanotube. Controlling the mixing ratio of the blue phase liquid crystal and the carbon nanotubes, so that the mass percentage of the carbon nanotubes is 1%-10% of the mixed blue phase liquid crystal, for example, the mass percentage may be 5%-10 %, 5%, etc. 4, especially 2%.

步骤 S102、制作阵列基板以及彩膜基板。 Step S102, fabricating an array substrate and a color filter substrate.

当然，制作阵列基板和彩膜基板的步骤也可以是在步骤 S101 之前或者与所述步骤 S101 同时进行。且制作阵列基板包括：在基板上形成像素电极和公共电极。即通过在阵列基板上设置公共电极和像素电极，形成水平电场。可选的，制作阵列基板包括：在基板上形成平面取向层。例如，在基板上通过沉积等方式形成薄膜，所述薄膜可以是 PI ( Polyimide, 聚酰亚胺）薄膜，再对所述薄膜进行摩擦，在 PI薄膜表面形成沟槽,经摩擦后的 PI薄膜可以称为取向层。取向层上的沟槽影响液晶的锚定力。需要说明的是，与现有的阵列基板相同，阵列基板上不仅包括上述公共电极、像素电极以及取向层，其还包括栅金属层、栅绝缘层等其他薄膜或层结构。例如，取向层一般位于阵列基板的最上面一层，则在形成所述取向层之前，基板上还形成有包括栅金属层、栅绝缘层、公共电极以及像素电极等其他薄膜或层结构。本发明实施例中，所述阵列基板上的薄膜或层结构与现有的阵列基板上的薄膜或层结构相同，故在此就不作赘述。 Of course, the steps of fabricating the array substrate and the color filter substrate may be performed before step S101 or simultaneously with step S101. And fabricating the array substrate comprises: forming a pixel electrode and a common electrode on the substrate. That is, a horizontal electric field is formed by providing a common electrode and a pixel electrode on the array substrate. Optionally, fabricating the array substrate comprises: forming a planar alignment layer on the substrate. For example, a film is formed on the substrate by deposition or the like, and the film may be a PI (Polyimide) film, and the film is rubbed to form a groove on the surface of the PI film, and the rubbed PI film is formed. It can be called an orientation layer. The grooves on the alignment layer affect the anchoring force of the liquid crystal. It should be noted that, similarly to the conventional array substrate, the array substrate includes not only the common electrode, the pixel electrode, and the alignment layer, but also other thin film or layer structures such as a gate metal layer and a gate insulating layer. For example, the alignment layer is generally located on the uppermost layer of the array substrate, and other thin film or layer structures including a gate metal layer, a gate insulating layer, a common electrode, and a pixel electrode are formed on the substrate before the alignment layer is formed. In the embodiment of the present invention, the film or layer structure on the array substrate is the same as the film or layer structure on the conventional array substrate, and thus will not be described herein.

可选的，所述制备彩膜基板包括：在基板上形成平面取向层。当然，彩膜基板上还包括其他薄膜或层结构，例如彩膜基板还包括彩色膜层以及黑矩阵膜层等，且彩膜基板上的平面取向层设置在彩膜基板的最上面。例如，在彩膜基板上形成平面取向层与在阵列基板上形成平面取向层的方法相同，在此就不作赘述。步骤 S103、将包括蓝相液晶和碳纳米管的混合物填充在阵列基板和彩膜基板之间。 Optionally, the preparing the color filter substrate comprises: forming a planar alignment layer on the substrate. Of course, the film substrate further includes other film or layer structures. For example, the color film substrate further includes a color film layer and a black matrix film layer, and the planar alignment layer on the color film substrate is disposed on the uppermost surface of the color film substrate. For example, the formation of the planar alignment layer on the color filter substrate is the same as the method of forming the planar alignment layer on the array substrate, and will not be described herein. Step S103, filling a mixture including the blue phase liquid crystal and the carbon nanotubes between the array substrate and the color filter substrate.

例如，将包括碳纳米管和蓝相液晶的混合物在脱泡机中进行脱泡处理，再通过真空对盒的方法经其封装在阵列基板和彩膜基板之间。例如，将包括碳纳米管和蓝相液晶的混合物封装在阵列基板和彩膜基板的方法和步骤与现有技术中封装向列相液晶的方法相同，本发明实施例不作赘述，只需参照现有技术即可。 For example, a mixture comprising carbon nanotubes and a blue phase liquid crystal is subjected to a defoaming treatment in a defoaming machine, and is further encapsulated between the array substrate and the color filter substrate by a vacuum-to-cassette method. For example, the method and the step of encapsulating the mixture of the carbon nanotubes and the blue phase liquid crystal on the array substrate and the color filter substrate are the same as the method for packaging the nematic liquid crystal in the prior art, and the embodiments of the present invention are not described herein. There is technology.

以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。 The above is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. The scope of the present invention is defined by the appended claims.

Claims

权利要求书 claims

I、一种稳定蓝相液晶晶体结构的方法，其中，向蓝相液晶中添加碳纳米管，并搅拌混合。 I. A method for stabilizing the crystal structure of blue phase liquid crystal, wherein carbon nanotubes are added to the blue phase liquid crystal and stirred and mixed.

2、根据权利要求 1所述的方法，其中，所述蓝相液晶中包括手性化合物，所述蓝相液晶中的所述手性化合物的质量百分含量为 2%-15%。 2. The method according to claim 1, wherein the blue phase liquid crystal includes a chiral compound, and the mass percentage of the chiral compound in the blue phase liquid crystal is 2%-15%.

3、根据权利要求 2所述的方法，其中，所述蓝相液晶中的手性化合物的质量百分含量为 2%。 3. The method according to claim 2, wherein the mass percentage of the chiral compound in the blue phase liquid crystal is 2%.

4、根据权利要求 1-3任一项所述的方法，其中，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 1%-10%。 4. The method according to any one of claims 1 to 3, wherein the mass percentage of carbon nanotubes in the mixture of carbon nanotubes and blue phase liquid crystal is 1%-10%.

5、根据权利要求 4所述的方法，其中，所述碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 2%。 5. The method according to claim 4, wherein the mass percentage of carbon nanotubes in the mixture of carbon nanotubes and blue phase liquid crystal is 2%.

6、一种显示装置，包括：对盒成型的阵列基板和彩膜基板以及填充在所述阵列基板和彩膜基板之间的液晶，其中，所述显示装置为常黑型显示装置，所述液晶为蓝相液晶，且所述蓝相液晶中混合有碳纳米管。 6. A display device, including: a box-shaped array substrate and a color filter substrate, and liquid crystal filled between the array substrate and the color filter substrate, wherein the display device is a normally black display device, The liquid crystal is a blue phase liquid crystal, and the blue phase liquid crystal is mixed with carbon nanotubes.

7、根据权利要求 6所述的显示装置，其中，所述蓝相液晶中包括手性化合物，所述蓝相液晶中的所述手性化合物的质量百分含量为 2%-15%。 7. The display device according to claim 6, wherein the blue phase liquid crystal includes a chiral compound, and the mass percentage of the chiral compound in the blue phase liquid crystal is 2%-15%.

8、根据权利要求 7所述的显示装置，其中，所述蓝相液晶中的手性化合物的质量百分含量为 2%。 8. The display device according to claim 7, wherein the mass percentage of the chiral compound in the blue phase liquid crystal is 2%.

9、根据权利要求 6-8任一项所述的显示装置，其中，碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 1%-10%。 9. The display device according to any one of claims 6 to 8, wherein the mass percentage of carbon nanotubes in the mixture of carbon nanotubes and blue phase liquid crystal is 1%-10%.

10、根据权利要求 9所述的显示装置，其中，所述碳纳米管和蓝相液晶的混合物中碳纳米管的质量百分含量为 2%。 10. The display device according to claim 9, wherein the mass percentage of carbon nanotubes in the mixture of carbon nanotubes and blue phase liquid crystal is 2%.

II、根据权利要求 6-10任一项所述的显示装置，其中，显示装置的阵列基板上设置有公共电极和像素电极。 II. The display device according to any one of claims 6 to 10, wherein a common electrode and a pixel electrode are provided on the array substrate of the display device.

12、根据权利要求 11所述的显示装置，其中，所述公共电极位于所述像素电极的上面。 12. The display device according to claim 11, wherein the common electrode is located above the pixel electrode.

13、根据权利要求 11所述的显示装置，其中，所述像素电极位于所述公共电极的上面。 13. The display device according to claim 11, wherein the pixel electrode is located above the common electrode.

14、根据权利要求 11所述的显示装置，其中，所述公共电极和所述像素电极同层设置。 14. The display device according to claim 11, wherein the common electrode and the pixel The electrodes are arranged on the same layer.

15、根据权利要求 6-14任一项所述的显示装置，其中，所述阵列基板上设置有取向层，且所述取向层为平面取向层；所述彩膜基板上设置有取向层，且所述取向层为平面取向层。 15. The display device according to any one of claims 6 to 14, wherein an alignment layer is provided on the array substrate, and the alignment layer is a planar alignment layer; an alignment layer is provided on the color filter substrate, And the alignment layer is a planar alignment layer.

16、一种显示装置的制作方法，包括： 16. A method of making a display device, including:

制备包括蓝相液晶和碳纳米管的混合物； Preparing a mixture including blue phase liquid crystal and carbon nanotubes;

制作阵列基板以及彩膜基板； Make array substrates and color filter substrates;

将包括蓝相液晶和碳纳米管的混合物填充在阵列基板和彩膜基板之间。 A mixture including blue phase liquid crystal and carbon nanotubes is filled between the array substrate and the color filter substrate.

17、根据权利要求 16所述的制作方法，其中，所述制备包括蓝相液晶和碳纳米管的混合物包括：将蓝相液晶和碳纳米管混合并搅拌。 17. The production method according to claim 16, wherein said preparing a mixture including blue phase liquid crystal and carbon nanotubes includes: mixing and stirring blue phase liquid crystal and carbon nanotubes.

18、根据权利要求 16或 17所述的制作方法，其中，所述制作阵列基板包括：在基板上形成像素电极和公共电极。 18. The manufacturing method according to claim 16 or 17, wherein manufacturing the array substrate includes: forming pixel electrodes and common electrodes on the substrate.

19、根据权利要求 16-18任一项所述的制作方法，其中，所述制作阵列基板包括：在基板上形成平面取向层。 19. The manufacturing method according to any one of claims 16 to 18, wherein said manufacturing the array substrate includes: forming a planar alignment layer on the substrate.

20、根据权利要求 16-19任一项所述的制作方法，其中，所述制作彩膜基板包括：在基板上形成平面取向层。 20. The manufacturing method according to any one of claims 16 to 19, wherein said manufacturing a color filter substrate includes: forming a planar alignment layer on the substrate.