TWI356230B - Liquid crystal display screen - Google Patents

Description

1356230 t __November 2001, 21 mesh shuttle replacement page six, invention description"-- [Technical field of invention] [0001] The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display that can operate at low temperatures . [Prior Art]

[0002] Liquid crystal display is one of the best display modes because of its low power consumption, miniaturization, and high-quality display. A commonly used liquid crystal display generally includes a liquid crystal cell made of two substrates having a transparent conductive layer and two polarizers disposed on the outer surface of the liquid crystal cell. The liquid crystal cell is filled with a liquid crystal material, and the liquid crystal cell is sealed by a sealing material and a plastic frame, and an alignment layer is disposed on the transparent conductive layer of the liquid crystal cell. The most common alignment layer material is polyimine, which is subjected to rubbing, oblique evaporation of SiOx film and micro-groove treatment of the film (see "Atomic-beam alignment of inorganic materials for liquid-crystal dis-plays". After treatment by P. Chaudhari, et al., Nature, vol 411, p56 (200 1 ), etc., a plurality of trenches can be formed which can align the liquid crystal molecules. The above transparent conductive layer is electrically connected to an external circuit through an electrode. [0003] When no voltage is applied to the electrode, the liquid crystal display is in an "OFF" state, and the light energy is transmitted through the liquid crystal display; when a certain voltage is applied to the electrode, the liquid crystal display is in an "ON" state, and the liquid crystal The long axis direction of the molecules is arranged along the direction of the electric field, and the light cannot pass through the liquid crystal display, so that the light is blocked. Optionally applying a voltage across the electrodes can show different patterns. [0004] However, the low temperature operation characteristics of the liquid crystal display in the prior art are relatively poor, 097116276 Form No. A0101 Page 4 / Total 24 Page 1003432697-0 1356230 " 100 years.11. The ground hinders the use of the liquid crystal display in a low temperature environment. The main reasons for the LCD screen not working properly at low temperature are as follows: First, the value of the liquid crystal display's domain voltage is a function of the temperature. As the temperature decreases, the domain voltage rises. Therefore, the domain voltage The change will cause the contrast to deteriorate. Second, the liquid crystal display is based on the change in the state of the liquid crystal molecules to realize the display function. At room temperature, the liquid crystal molecule changes process as a molecular process, and its response speed is much slower than atomic processes and electronic processes. Whether rising or falling, it is a force that overcomes the resistance and changes the state of the liquid crystal molecules. Process, even.

As the ambient temperature decreases, the viscosity of the liquid crystal molecules increases, so that the resistance of the change in the state of the liquid crystal molecules increases, and the response speed becomes slower. Therefore, how to make the liquid crystal display work normally at low temperature has become a research hotspot.

[0005] The prior art employs a heating layer disposed on the inner side or the outer side of the liquid crystal display substrate to temperature-compensate the liquid crystal display panel, thereby causing the liquid crystal display panel to operate at a low temperature. The material of the heating layer is usually an indium tin oxide transparent conductive film. However, since the indium tin oxide transparent conductive film has a small series resistance and the heating performance is not ideal, the liquid crystal display panel using the above heating layer cannot effectively improve the low temperature display effect; in addition, an additional heating layer is added, and the liquid crystal display is also added. The thickness of the screen. In view of this, it is indeed necessary to provide a liquid crystal display that can operate at low temperatures. [0007] A liquid crystal display panel includes a first substrate; a second substrate, the first substrate is disposed opposite to the second substrate; a liquid crystal layer is provided with 097116276 Form No. A0101 No. 5 Page / Total 24 pages 1003432697-0 1356230 loo year November 2i nuclear replacement π

Between the first substrate and the second substrate; a first alignment layer disposed on a surface of the first substrate adjacent to the liquid crystal layer, and the first alignment is close to the surface of the liquid crystal layer a plurality of parallel first trenches; and a second alignment layer disposed on a surface of the second substrate adjacent to the liquid crystal layer, and the second alignment layer comprises a plurality of parallel surfaces adjacent to the liquid crystal layer a second trench, wherein the second trench is arranged in a direction perpendicular to the first trench alignment direction of the first alignment layer. Wherein the liquid crystal display further comprises at least two electrodes, at least one of the first alignment layer or the second alignment layer comprises a carbon nanotube layer, and the at least two electrodes are spaced apart and arranged The carbon nanotube layers are electrically connected.

Compared with the prior art, the liquid crystal display has the following advantages: First, since the carbon nanotube layer serves as a heating layer, the liquid crystal display can operate at a low temperature. Second, since the alignment layer containing the carbon nanotube layer can simultaneously function as an alignment and heating, the liquid crystal display panel has a simple structure and reduces the thickness of the liquid crystal display. Third, since the alignment layer containing the carbon nanotube layer has good electrical conductivity, it can conduct electricity. Therefore, when the liquid crystal display panel of the present embodiment adopts an alignment layer containing a carbon nanotube film, it is not necessary to additionally add a transparent conductive layer, so that the liquid crystal display panel has a thin thickness and simplifies the structure of the liquid crystal display. Embodiments [0009] The present technical solution will be further described in detail below with reference to the accompanying drawings. Referring to FIG. 1 , FIG. 2 and FIG. 3 , a first embodiment of the present technical solution provides a liquid crystal display 300 including a first substrate 302 and a second substrate 097116276. Form number Α 0101 Page 6 / A total of 24 pages 1003432697-0 1356230 100 years. November 21 revised replacement page

322, a liquid crystal layer 338, a first alignment layer 304, and a second alignment layer 324. The first substrate 302 is disposed opposite to the second substrate 322; the liquid crystal layer 338 is disposed between the first substrate 302 and the second substrate 322. The first alignment layer 304 is disposed on a surface of the first substrate 302 adjacent to the liquid crystal layer 338, and the surface of the first alignment layer 302 adjacent to the liquid crystal layer 338 includes a plurality of parallel first trenches 308; the second alignment layer 324 is disposed On the surface of the second substrate 322 near the liquid crystal layer 338, and the surface of the second alignment layer 324 near the liquid crystal layer 338 includes a plurality of parallel second trenches 328 'the second trench of the second alignment layer 324 The arrangement direction of 328 is perpendicular to the direction in which the first trenches 308 of the first alignment layer 304 are arranged. [0011] The first alignment layer 304 comprises a carbon nanotube layer, and the second alignment layer 324 is a carbon nanotube layer or an alignment layer prepared from polyamines in the prior art. The first alignment layer 304 is electrically connected to at least two electrodes, respectively, for heating the first alignment layer 304. The second alignment layer 324 may also be electrically connected to at least one of the electrodes for better introduction of the potential. In this embodiment, the liquid crystal display 300 includes three electrodes, which are a first electrode 306, a second electrode 307, and a third electrode 326, respectively. The first electrode 306 and the second electrode 3〇7 are spaced apart and electrically connected to the first alignment layer 304. The third electrode 326 is electrically connected to the second alignment layer 324. [0012] The carbon nanotube layer in the first alignment layer 304 includes a plurality of carbon nanotubes preferentially oriented in the same direction. It can be understood that the second alignment layer 324 can be a carbon nanotube layer, or can be made of a prior art alignment layer material such as a polyimide layer, and a corresponding component is disposed to ensure the liquid crystal display. 〇 Normal work. In this embodiment, the first alignment layer 304 and the first alignment layer 324 respectively comprise a carbon nanotube layer. 097116276 Form No. A0101 Page 7 / Total 24 Page 1003432697-0 1356230 _s__ November 21 21 Self-nuclear replacement 100 [0013] The carbon nanotube layer comprises at least one layer of carbon nanotube film, the carbon nanotube The film is obtained by pulling directly from the carbon nanotube array. Further, the carbon nanotube film comprises a plurality of carbon nanotubes arranged in a preferred orientation in the same direction. When the carbon nanotube layer comprises at least two layers of carbon nanotube films arranged in an overlapping manner, each of the carbon nanotube films comprises a plurality of carbon nanotubes arranged in a preferred orientation in the same direction and two adjacent layers. The arrangement of the carbon nanotubes in the carbon nanotube film has an intersecting bird angle α and 0 a 90°. Specifically, the carbon nanotube film further comprises a plurality of carbon nanotube bundle segments connected end to end by a van der Waals force, each of the carbon nanotube tubes

The bundle segments are of equal length and are composed of a plurality of mutually parallel carbon nanotube bundles I. The adjacent carbon nanotube bundles are tightly coupled by a van der Waals force, and the carbon nanotubes comprise a plurality of carbon nanotubes of equal length and arranged in parallel, between the adjacent carbon nanotubes The vanadium carbon nanotube layer has a plurality of parallel and evenly distributed layers by a van der Waals force tightly coupled with a gap between the plurality of carbon nanotube bundles and the plurality of carbon nanotube tubes in the nanotube film. gap. It will be appreciated that the gaps in the carbon nanotube layer may constitute the first trench 308 or the second trench 328. [0014] The carbon nanotube layer may also be a thin film layer composed of a plurality of carbon nanotube long lines arranged in close parallel. The long carbon nanotube line comprises a bundle structure consisting of a plurality of carbon nanotube bundles connected end to end by a van der Waals force, wherein each nano carbon tube bundle comprises a plurality of nanometers of equal length and parallel arrangement. Carbon tube. In addition, the long carbon nanotube wire may further comprise a twisted wire structure composed of a plurality of carbon nanotube bundles connected end to end by a van der Waals force, wherein each nano carbon nanotube bundle comprises a plurality of equal lengths and twists. The carbon nanotubes. 097116276 Form No. A0101 Page 8 of 24 1003432697-0 1356230 [0015] 1100. November g The carbon nanotubes in the carbon nanotube film include single-walled carbon nanotubes, double-walled nanotubes One or more of stone back pipe and multi-walled carbon nanotubes. The single-walled carbon nanotube has a diameter of 0.5 nm to 10 nm, the double-walled carbon nanotube has a diameter of 1.0 nm to 15 nm, and the multi-walled carbon nanotube has a diameter of 5 nm. 50 nm. [0017] [0017]

Further, in order to prevent the above-mentioned alignment layer from falling off, a fixing layer may be provided on the surface of the carbon nanotube layer of the alignment layer. In this embodiment, the first alignment layer 3〇4 includes a first carbon nanotube layer 304a and a first fixed layer 3〇4b, and the second alignment layer 324 includes—the first carbon nanotube 324a and a second fixed layer 324b. The first fixing layer 304b and the second fixing layer 324b are respectively disposed on the surface of the first alignment layer 3〇4 and the second alignment layer 324 near the liquid crystal layer 338. Since the first carbon nanotube layer 3〇4a in the first alignment layer 304 and the second carbon nanotube layer 324a in the second alignment layer 324 have a plurality of parallel and evenly distributed gaps near the surface of the liquid crystal layer 338, respectively. Therefore, when the first fixed layer 3〇4b and the second fixed layer 324b cover the surface of the first carbon nanotube layer 304a and the second carbon nanotube layer 324a near the liquid crystal layer 338, respectively, A surface of a fixed layer 3 0.4b and a second fixed layer 324b forms a plurality of parallel and uniformly distributed trenches; the trench may serve as a first trench 308 and a second alignment layer 324 of the first alignment layer 304 Two trenches 328. [0018] when the material of the fixed layer is diamond-like hydride, nitriding, amorphous yttrium hydride, tantalum carbide, cerium oxide, aluminum oxide, cerium oxide, tin oxide, zinc phthalate or acid Indium, may be attached to the surface form number of the first 097116276. m carbon tube layer 30 4a and the second carbon nanotube layer 324a by evaporation, sputtering, plasma enhanced chemical vapor deposition (PECVD) growth. A0101 Page 9 of 24 When the solid 1003432697-0 1356230 _, _π November 21, 100, the material of the replacement of the baiding layer is polyvinyl alcohol, polyimine, polymethyl methacrylate or In the case of polycarbonate, the surface of the first carbon nanotube layer 304a and the second carbon nanotube layer 324a may be attached by a silicone method. The fixing layer has a thickness of 20 nm to 2 μm. [0019] In this embodiment, the first carbon nanotube layer 304a and the second carbon nanotube layer 324a are respectively a carbon nanotube film, and the carbon nanotubes of the first carbon nanotube layer 304a The alignment direction is perpendicular to the arrangement direction of the carbon nanotubes of the second carbon nanotube layer 324a, such that the first trench 308 of the first alignment layer 304 and the second trench 328 of the second alignment layer 324 The alignment side _ is vertical so as to align the liquid crystal molecules in the liquid crystal layer 338. Specifically, the first trenches 308 in the first alignment layer 304 are parallel and oriented in the X-axis direction; the second trenches 328 in the second alignment layer 324 are aligned and aligned in the Z-axis direction. The thickness of the first alignment layer 304 and the second alignment layer 324 ranges from 1 micrometer to 50 micrometers, respectively. [0020] The first electrode 306, the second electrode 307, and the third electrode 326 are respectively strip electrodes. It will be appreciated that the electrodes described above may also be of other shapes. The first electrode 306 and the second electrode 307 are disposed in parallel along the first direction and spaced apart from the first alignment layer 304 near the surface of the first substrate 302. The third electrode 326 is disposed in the second direction on the second alignment layer 324 near the second. a surface of the base 322; wherein the first direction and the second direction intersect. In this embodiment, the first direction and the second direction are perpendicular to each other, and the first electrode 306 and the second electrode 307 are disposed at opposite ends of the first alignment layer 304 along the first direction, and the third electrode 326 is along the second direction. One end of the second alignment layer 324 is provided. [0021] It can be understood that only the liquid crystal display 097116276 in the embodiment of the present technical solution is required. Form No. A0101 Page 10 / Total 24 Page 1003432697-0 1356230 100. November The alignment layer can be heated by providing two spaced electrodes on one of the alignment layers of the 21st nuclear replacement page 300. Preferably, the electrode arrangement method described in this embodiment is employed. [0022] In addition, the electrode is not limited to the above-described arrangement, and may be disposed on the surface of the alignment layer away from the substrate, or when the alignment layer includes the fixed layer, or may be disposed on the surface of the fixed layer away from the liquid crystal layer. That is, it is only necessary to ensure that the electrodes are electrically connected to the alignment layer. [0023] The first substrate 302 and the second substrate 322 should be made of a hard or flexible transparent material such as glass, quartz, diamond or plastic. In this embodiment, the material of the first substrate 302 and the second substrate 322 is a flexible material such as Cellulose Triacetate (CTA). Preferably, the materials of the first substrate 302 and the second substrate 322 are both formed of a CTA material. It can be understood that the materials of the first substrate 302 and the second substrate 322 may be the same or different. [0024] The liquid crystal layer 338 includes a plurality of long rod-shaped liquid crystal molecules. The liquid crystal material of the liquid crystal layer 338 is a liquid crystal material commonly used in the prior art. Further, a plurality of supports may be disposed between the first alignment layer 304 and the second alignment layer 324. The support is a polyethylene pellet having a diameter of 10 micrometers. In this embodiment, the polyethylene pellets have a diameter of 5 μm. [0025] The process of heating the first alignment layer 304 of the liquid crystal display 300 will be described below. [0026] When heating is not required, the first electrode 306 maintains an operating voltage (typically 5V), and the third electrode 326 maintains a zero potential to ensure the liquid crystal display 097116276 Form No. A0101 Page 11 / Total 24 Page 1003432697 -0 1356230 On November 21, 100, Shuttle is replacing page 300 to work normally. When it is necessary to increase the operating temperature of the liquid crystal display 300,

The second electrode 3 07 heats the liquid crystal display 300 in three ways. First, when the liquid crystal display 300 needs to be preheated before the operation, the second electrode 307 and the first electrode 306 are directly turned on. A direct current is passed through the carbon nanotube layer in an alignment layer 304 to heat the liquid crystal display panel 300 to a predetermined temperature. Secondly, during the operation of the liquid crystal display 300, when the operating temperature of the liquid crystal display 300 needs to be increased, a pulsed direct current can be passed between the second electrode 307 and the first electrode 306 on the liquid crystal display 300. Heating in the OFF state. Thirdly, during the operation of the liquid crystal display 300, when heating is required to increase the operating temperature of the liquid crystal display 300, a high-frequency alternating current may be applied between the second electrode 307 and the first electrode 306. The rlj frequency parent current can be heated when the liquid crystal display screen 300 is switched between "ON" or "OFF". Since the delay time between "0N" or "OFF" of the liquid crystal display 300 is on the order of milliseconds (ms), and in order to avoid the influence of the high-frequency alternating current on the working electric field, the frequency of the above-mentioned high-frequency alternating current can be set at ΙΟΚΗζ Above.

[0027] Please refer to FIG. 4 , a liquid crystal display 400 according to a second embodiment of the present invention includes a first substrate 402 , a second substrate 422 , a liquid crystal layer 438 , and a first alignment layer 404 . A second alignment layer 424, at least four electrodes. Further, the surfaces of the first alignment layer 404 and the second alignment layer 424 near the liquid crystal layer 438 respectively include a plurality of parallel first trenches 408 and second trenches 428, and the second trenches 428 are arranged in the direction and the first trenches. The grooves 408 are arranged in a direction perpendicular to each other. The first alignment layer 40 4 and the second alignment layer 424 respectively comprise a nanocarbon tube layer. The first alignment layer 404 is electrically connected to at least two electrodes respectively, and the second alignment layer 424 is respectively connected to the two electrodes A of 097116276 Form No. A0101, Page 12/24 pages 1003432697-0 to ^. In this embodiment, the liquid crystal display 400 includes four electrodes '1', a second electrode 407, a second electrode 426, and a fourth electrode 427, respectively. The liquid crystal display 4QQ of the first embodiment has substantially the same structure as the liquid crystal display 300 of the first embodiment, except that the fourth electrode 427 is arranged to heat the second alignment layer of the liquid crystal display panel 4 . The fourth electrode 427 can also be a strip electrode. It will be appreciated that the fourth electrode 427 can be other shapes as well. Specifically, the first electrode 4G6 and the second electrode 407 are both parallel and spaced apart from each other in the first alignment layer 4〇4 near the surface of the first substrate 402; the third electrode 426 and the fourth electrode 427 are both/ The first direction is parallel and spaced apart from the surface of the second alignment layer 424 adjacent to the second substrate 422, wherein the first direction and the second direction are perpendicular to each other in the first direction and the second direction in this embodiment. The process of heating the first alignment layer 4〇4 and the second alignment layer 424 of the liquid crystal display 400 will be described below. When the heating is not required, the first electrode 406 maintains an operating voltage (typically 5V), and the third electrode 426 maintains a zero potential, which ensures that the liquid crystal display 400 operates normally. When the temperature is lower and the operating temperature of the liquid crystal display panel 4 is increased, the second electrode 407 and the fourth electrode 427 heat the liquid crystal display 400 in the following three ways: First, in the liquid crystal display 4〇〇 When preheating is required, the third electrode 426 is kept at a zero potential, a certain voltage (for example, 5 V) is applied to the fourth electrode 427, and an operating voltage (usually 5 V) is applied to the first electrode 406, and the second electrode 4 〇 7 remains at zero potential; thereafter 'turns on the second electrode 407 and the first electrode 4〇6, respectively, the fourth electrode 427 and the third electrode 426' such that the carbon nanotube form number A0101 in the first alignment layer 4〇4 13 pages/total 24 pages 1003432697-0 1356230 On November 21, 100, a direct current is passed through the carbon nanotube layer in the nuclear replacement layer and the second alignment layer 424, thereby heating the liquid crystal display 400 to a predetermined temperature. . Secondly, during the operation of the liquid crystal display 400, when the operating temperature of the liquid crystal display 400 needs to be increased, when the liquid crystal display 400 is in the "OFF" state, respectively, between the second electrode 407 and the first electrode 406. The fourth electrode 427 and the third electrode 426 are heated by a pulsed direct current. Thirdly, during the operation of the liquid crystal display 400, when heating is required to increase the operating temperature of the liquid crystal display 400, a high-frequency alternating current may be applied between the second electrode 407 and the first electrode 406, and the fourth electrode. Between the 427 and the third electrode 4 26, the current frequency parent current can be heated when the liquid crystal display is switched between 0 N ” or “OFF.” Since the liquid crystal display 400 is “ON” The delay time between "OFF" or "OFF" is on the order of milliseconds (ms), and in order to avoid the influence of high-frequency alternating current on the working electric field, the frequency of the above-mentioned high-frequency alternating current can be set above 10 kHz (KHz). [0031] It can be understood that since different voltages are applied to the first electrode 406, the second electrode 407, the third electrode 426, and the fourth electrode 427, the first electrode 406, the second electrode 407, the third electrode 426, and the first electrode The arrangement direction between the four electrodes 427 affects the display effect of the liquid crystal display panel 400. In this embodiment, the arrangement directions between the first electrode 406, the second electrode 407, the third electrode 426, and the fourth electrode 427 are perpendicular to each other. 0032] After the power is turned on, it contains The first alignment layer 404 or/and the second alignment layer 424 of the carbon nanotube layer may radiate electromagnetic waves of a certain wavelength range. Specifically, when the area (length * width) of the carbon nanotube layer is constant, By adjusting the voltage of the power supply and the thickness of the carbon nanotube layer, electromagnetic waves of different wavelength ranges are radiated. When the voltage of the power supply is 097116276, the form number A0101 is 14 pages/24 pages 1003432697-0 1356230

At the time of the replacement of the page, the thickness of the carbon nanotube layer is inversely proportional to the wavelength of the electromagnetic wave radiated from the carbon nanotube layer. That is, when the power supply voltage is constant, the thicker the carbon nanotube layer is, the shorter the wavelength of the electromagnetic wave is radiated, the visible light is emitted and a common heat radiation is generated; the thinner the thickness of the carbon nanotube layer is. The longer the wavelength of the electromagnetic wave radiated, the more infrared heat radiation can be generated. When the thickness of the carbon nanotube layer is constant, the magnitude of the power supply voltage is inversely proportional to the wavelength at which the carbon nanotube layer emits electromagnetic waves lightly. That is, when the thickness of the carbon nanotube layer is constant, the larger the power supply voltage, the shorter the wavelength of the electromagnetic wave radiated by the carbon nanotube layer, the visible light is generated and a common heat radiation is generated; the smaller the power supply voltage is, the smaller the power supply voltage is. The longer the wavelength at which the carbon nanotube layer radiates electromagnetic waves, an infrared heat radiation can be generated. [0033] As an ideal black body structure, the carbon nanotube has good electrical conductivity and thermal stability, and has relatively high heat radiation efficiency. The carbon nanotube has a large surface area and can be easily fabricated into a large-area carbon nanotube layer. The area of the carbon nanotube film in the embodiment of the present technical solution is 900 cm2, wherein the carbon nanotube layer has a length of 30 cm and a width of 30 cm. The carbon nanotube layer includes a plurality of carbon nanotubes. After the carbon nanotube layer connection wire is connected to the power source, a voltage of 10 volts to 30 volts is applied, and the carbon nanotube layer can emit electromagnetic waves having a long wavelength. The temperature of the carbon nanotube layer was found to be 50 ° C to 500 ° C by a temperature measuring instrument. For objects with a black body structure, the temperature corresponding to 200 ° C ~ 450 ° C can emit invisible heat (infrared), the most stable and efficient thermal radiation at this time, the highest The heat generated by the hot car is the largest. [0034] In addition, since the carbon nanotube layer includes a plurality of carbon nanotubes, so that the carbon nanotube layer has good electrical conductivity, the carbon nanotube layer can be 097116276 Form No. A0101 Page 15 / Total 24 pages 1003432697-0 1356230 The revised replacement page on November 21, 100 replaces the transparent conductive layer of the prior art to conduct electricity. Therefore, when the liquid crystal display panel in the embodiment adopts an alignment layer containing a carbon nanotube layer, the transparent conductive layer is not required to be added, so that the liquid crystal display panel has a thin thickness, which simplifies the structure and manufacturing cost of the liquid crystal display. Improve backlight utilization and improve display quality. In addition, the carbon nanotube layer is disposed on the substrate without mechanical brushing or other treatment, and static electricity and dust are not generated, so that the liquid crystal display has better alignment quality. It can be understood that covering a fixed layer on the surface of the carbon nanotube layer can make the carbon nanotube layer used as an alignment layer not fall off when it is in contact with the liquid crystal material for a long time, so that the liquid crystal display The screen has a good alignment quality. [0035] The plurality of carbon nanotubes in the carbon nanotube layer are arranged in parallel, so the carbon nanotube layer has a polarization effect on natural light, so that it can be polarized instead of the polarizing plate in the prior art. effect. In order to make the liquid crystal display panel have a better polarizing effect, at least one polarizing plate (not shown) may be disposed on the surface of the first substrate and/or the second substrate remote from the liquid crystal layer.

[0036] It can be understood that the liquid crystal display 300, 400 provided by the embodiments of the present technical solution is only a single-pixel liquid crystal display. Further, a plurality of the above-described single-pixel liquid crystal displays 300, 400 may be arranged according to a predetermined rule, such as a dot matrix setting, for use in a multi-pixel liquid crystal display. It can be understood that the plurality of single-pixel liquid crystal displays can be disposed by using a common substrate, that is, using the same large area of the first substrate and the second substrate. In addition, the above multiple liquid crystal displays can be directly assembled for multi-pixel display. [0037] The liquid crystal display according to the embodiment of the present technical solution has the following advantages: 097116276 Form No. A0101 Page 16 / Total 24 Page 1003432697-0 1356230

100 years. On November 21st, the shuttle is replacing the page. First, the carbon nanotube layer is used as a heating layer, so that the liquid crystal display can work at low temperatures. Second, since the alignment layer containing the carbon nanotube layer can simultaneously function as an alignment and heating, the liquid crystal display panel has a simple structure and reduces the thickness of the liquid crystal display. Third, since the alignment layer containing the carbon nanotube layer has good electrical conductivity, it can conduct electricity. Therefore, when the liquid crystal display panel of the present embodiment adopts an alignment layer containing a carbon nanotube film, it is not necessary to additionally add a transparent conductive layer, so that the liquid crystal display panel has a thin thickness and simplifies the structure of the liquid crystal display. Fourthly, a fixing layer is disposed on the surface of the carbon nanotube layer, so that the carbon nanotube layer used as the alignment does not fall off when it is in contact with the liquid crystal material for a long time, so that the liquid crystal display Has a good alignment quality. [0038] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0039] FIG. 1 is a schematic perspective view showing a liquid crystal display of a first embodiment of the present technical solution. 2 is a cross-sectional view taken along line II-II shown in FIG. 2. 3 is a cross-sectional view taken along line III-III shown in FIG. 2. 4 is a schematic perspective view showing a liquid crystal display of a second embodiment of the present technical solution. 097116276 Form No. A0101 Page 17 / Total 24 Page 1003432697-0 1356230 November 21, 2001 ' Shuttle Positive Replacement Page [Main Component Symbol Description] [0043] Liquid Crystal Display: 300, 400 [0044] No. - Substrate : 302, 402 [0045] _-alignment layer: 304, 404 [0046] - 'nanocarbon tube layer: 304a [0047] - fixed layer: 304b [0048] - electrode: 306, 406 Second electrode: 307, 407 [0050] - - Trench: 308, 408 [0051] Second substrate: 322, 422 [0052] Second alignment layer: 324, 424 [0053] Second nanometer Carbon tube layer: 324a [0054] % two fixed layer: 324b [0055] third electrode: 326, 426 [0056] fourth electrode: 427 [0057] % two two grooves: 328, 428 [0058] liquid crystal layer :338,438

097116276 Form No. A0101 Page 18 of 24 1003432697-0

Claims (1)

1100. November 21st, the shuttle is replaced by a patent application range: a liquid crystal display comprising: - a first substrate; - a second substrate 'the first substrate opposite the second substrate; - liquid crystal a first alignment layer disposed between the first alignment layer and the second alignment layer The surface of the layer includes a plurality of parallel first trenches; and a second alignment layer disposed on the surface of the second substrate adjacent to the liquid crystal layer and the second alignment layer is adjacent to the surface of the liquid crystal layer a plurality of parallel second trenches, wherein the second trench is arranged in a direction perpendicular to the first trench alignment direction of the first alignment layer; and the improvement is that the liquid crystal display further includes at least two Electrode, at least one of the first alignment layer or the second alignment layer comprises a carbon nanotube layer, wherein the carbon nanotube layer comprises a plurality of aligned carbon nanotubes, i at least two Electrode spacing setting The liquid crystal display of the first aspect of the invention, wherein the first alignment layer and the second alignment layer respectively comprise a carbon nanotube layer, The carbon nanotube layer includes a plurality of aligned carbon nanotubes. The liquid crystal display of claim 2, wherein the liquid crystal display comprises four electrodes, and the two electrodes are along the first direction Parallel and spaced apart from the first alignment layer adjacent to the surface of the first substrate, the other two electrodes are parallel and spaced along the second direction. The second alignment layer is disposed adjacent to the surface of the second substrate, and the first direction and the second direction are also. Form No. A0101, page 19, a total of 24 pages, 1003432697-0, 1356230, a liquid crystal display according to claim 2, wherein the plurality of carbon nanotubes are There are a plurality of parallel and evenly distributed gaps, the gaps forming a first trench or a second trench. 5. The liquid crystal display of claim 1, wherein the carbon nanotube layer comprises at least one layer of carbon nanotube film, and the carbon nanotube film comprises a plurality of preferred orientations in the same direction Arranged carbon nanotubes. 6. The liquid crystal display according to claim 5, wherein the carbon nanotube layer comprises at least two layers of carbon nanotube films arranged in an overlapping manner, and adjacent two layers of carbon nanotube film The arrangement direction of the carbon nanotubes has a crossing angle α and 0α90°. The liquid crystal display of claim 1, wherein the carbon nanotube layer comprises a plurality of closely aligned carbon nanotube long lines, the nano carbon tube long line comprising a plurality of passes Vantagel's end-to-end aligned carbon nanotube bundles are arranged in parallel to form an east-like structure or a twisted wire structure composed of a plurality of nano-tube bundles connected end to end by Van der Waals force. 8. The liquid crystal display according to claim 2, wherein the liquid crystal display further comprises at least one fixed layer corresponding to the carbon nanotube layer and disposed on the nanocarbon The liquid crystal display panel of the eighth aspect of the invention, wherein the material of the fixing layer is a diamond-like hydride, a nitrite, an amorphous stone Hydride, bismuth hardened, bismuth oxidized oxidized oxidized cerium, cerium oxide, tin oxide, zinc titanate, indium titanate, polyvinyl alcohol, polyimine, decyl acrylate or polycarbonate. 10. The liquid crystal display of claim 8, wherein the fixed layer has a thickness of 20 nm to 2 μm. 097116276 Form No. 1010101 Page 20 of 24 1003432697-0 ' [JW year n 2i 11 · The liquid crystal display of claim 8] wherein the carbon nanotube layer includes Multiple parallel and evenly distributed gaps. The liquid crystal display according to claim 11, wherein the fixed layer is adjacent to a surface of the liquid crystal layer, and has a groove corresponding to a gap in the carbon nanotube layer, the groove forming the first a groove or a second groove. The liquid crystal display of claim 1, wherein the first alignment layer or the second alignment layer has a thickness of 1 μm to 50 μm. The liquid crystal display of claim 1, wherein the liquid crystal display further comprises at least one polarizing plate disposed on a surface of the first substrate or/and the second substrate away from the liquid crystal layer. 097116276 Form NumberΑ0101 Page 21/Total 24 Page 1003432697-0