50results about How to "Reduce box thickness" patented technology

The invention provides a liquid crystal composition and an application thereof. Based on 100 percent by mass of the composition, the liquid crystal composition comprises the following components in percentage by mass: 0-70 percent of a nematic liquid crystal compound shown as a formula I, 0-50 percent of a nematic liquid crystal compound shown as a formula II, 0-50 percent of a nematic liquid crystal compound shown as a formula III, 0-30 percent of a nematic liquid crystal compound shown as a formula IV and 0-30 percent of a nematic liquid crystal compound shown as a formula V. The liquid crystal composition has high birefringence rate, and has the characteristics of high upper limit temperature of a nematic phase, low lower limit temperature of the nematic phase, low rotation viscosity, high response speed and the like. The liquid crystal composition provided by the invention can be applied in the fields of variable-focus liquid crystal lenses and the like.

The invention discloses an electronic control liquid crystal adjustable terahertz wave absorber based on synchronous drive of graphene / metamaterial and a preparing method of the electronic control liquid crystal adjustable terahertz wave absorber, and belongs to the technical field of terahertz optoelectronics. The absorber comprises a quartz substrate a, a liquid crystal layer and a quartz substrate b, the quartz substrate a and the quartz substrate b are combined through a glue frame to constitute a liquid crystal box, and the liquid crystal layer is arranged at the junction of the quartz substrate a and the quartz substrate b; the inner side of the quartz substrate a comprises a periodic sub-wavelength metal unit array, a porous graphene layer and a light orientation layer a from insideto outside in sequence; the inner side of the quartz substrate b comprises a metal reflection mirror and a light orientation layer b from inside to outside in sequence, and a terahertz wavelength large-double-refraction-rate liquid crystal material is injected into the liquid crystal layer. The preparing method is simple and efficient, a sub-wavelength modular construction array can be designed randomly, the prepared electronic control liquid crystal adjustable terahertz wave absorber has a high electric field distribution and liquid crystal control capability, and meanwhile, the absorber hasthe advantages that the modulating frequency band is wide, and the modulating speed is high.

The invention relates to a nematic liquid crystal composition. The composition contains at least a nematic liquid crystal compound as shown in the formula (I), at least a nematic liquid crystal compound as shown in the formula (II), at least a nematic liquid crystal compound as shown in the formula (III), at least a nematic liquid crystal compound as shown in the formula (IV), at least a nematic liquid crystal compound as shown in the formula (V) and at least an optionally optically active compound. The nematic liquid crystal composition provided by the invention has high birefringence, low visco-elastic coefficient ratio gamma 1 / k11 and a wide phase transition temperature range. In addition, the liquid crystal composition has high ultraviolet ray stability and high thermal stability.

The invention discloses a liquid crystal composition which comprises 1-70wt% of liquid crystal compound shown by formula I, 1-90wt% of liquid crystal compound shown by formula II and 0-70wt% of liquid crystal compound shown by formula III. The liquid crystal composition disclosed by the invention has high optical anisotropy, relatively wide nematic phase temperature range, high clearing point range, relatively low rotary viscosity and proper dielectric anisotropy, thus the liquid crystal composition can realize relatively low box thickness and relatively low drive voltage of a liquid crystal lens; moreover, the liquid crystal composition has the characteristics of fast response, relatively high optical efficiency and the like.

The invention provides a compound liquid crystal display device, comprising a first basal plate, a second basal plate arranged opposite to the first basal plate, and a liquid crystal layer located between the first basal plate and the second basal plate; the inner side of the first basal plate is provided with a first polaroid, a color-resisting layer, black matrixes and a viewpoint control electrode, the outer side or the inner side of the first basal plate is provided with a touch control circuit layer, the position of the first polaroid is located between the touch control circuit layer and the viewpoint control electrode, and the first polaroid is made of a metal material. The compound liquid crystal display device is additionally provided with a touch control function and a viewpoint switching function, box thickness does not need to be increased additionally, furthermore, interference of a viewpoint switching signal to touch control is reduced, so that the touch control is more sensitive.

The invention discloses a reflection type electronic control adjustable terahertz liquid crystal wave plate based on a subwavelength metal wire grating. The wave plate comprises two pieces of melting quartz baseplates, wherein the subwavelength metal wire grating is arranged on the inner side of one piece of melting quartz baseplates, a metal reflection mirror is arranged on the inner side of the other piece of melting quartz baseplates, and a liquid crystal box is formed by the two pieces of melting quartz baseplates which are combined through frame glue; two-layer light control aligning layers are arranged on the subwavelength metal wire grating and the metal reflection mirror in the liquid crystal box respectively, liquid materials are arranged in the middle of the two-layer light control aligning layers, and the liquid materials are terahertz electronic control large double refractive index liquid crystal materials; parallel orientation of liquid crystals is achieved by the liquid crystal box through a light control orientation mode, and a 90-degree angle is formed between the orientation direction and the metal wire grating direction. The invention further discloses a preparing method of the reflection type electronic control adjustable terahertz liquid crystal wave plate based on the subwavelength metal wire grating; the reflection type electronic control adjustable terahertz liquid crystal wave plate has the advantages of super-wide frequency band, large modulated quantity and quick response, and can be applied to THz wave polarization transition, THz wavefront regulation and THz vector light beams.

The invention provides a liquid crystal display panel. It is set that the intervals between pixel electrodes corresponding to green light stop blocks and pixel electrodes corresponding to adjacent red light stop blocks and adjacent blue light stop blocks respectively are larger than those between the pixel electrodes corresponding to the red light stop blocks and the pixel electrodes corresponding to the blue light stop blocks, equivalently, the distances between green sub-pixels in the liquid display panel and adjacent blue sub-pixels in the liquid crystal display panel and between the green sub-pixels in the liquid display panel and adjacent red sub-pixels in the liquid crystal display panel are increased, and therefore the probability that background light corresponding to the red sub-pixels and the blue sub-pixels diverges to enter the green sub-pixels is reduced, and the amount of green light mixed in the peripheries of red and blue images is reduced. The box thickness of the portions, corresponding to the green light stop blocks, of the liquid crystal display panel can be further reduced, the amount of the background light corresponding to the red sub-pixels and the blue sub-pixels and diverging to enter the green sub-pixels is further reduced accordingly, the amount of the green light mixed in the peripheries of the red and blue images is reduced, the problem of large viewing angle color cast of a liquid crystal display panel is solved, and display quality is improved.

The invention relates to a LCD-making method, especially a LCD-making method of packaging and making liquid crystal material by using the double-layer structure where the liquid layer is covered with polymer film and which is formed in the course that the polymer monomer is separated with the liquid crystal in the polymerization reaction during the no liquid crystal injection course of a single-basal plate. According to the requirement for device structure, it further uses the techniques of coating, splashing, photoetching, etc to complete making the liquid crystal screen. Compared with traditional liquid crystal screen making techniques, it omits the courses of making an empty box and injecting liquid crystal into the empty box. It has obvious advantage in making plastic basal boards and large-sized LCD. It can also use plastic basal plate, thus making the made liquid crystal screen very thin, and further reducing the thickness and weight of the liquid crystal screen box.

The invention discloses the structure of a liquid crystal grating. The liquid crystal grating comprises an upper substrate, a lower substrate and liquid crystals, wherein a transparent conducting thin film is arranged on the upper substrate, lower strip-shaped grounding electrode layers are sequentially etched on the lower substrate, a first dielectric layer is deposited on lower grounding electrodes, addressing electrodes which are parallel to the lower grounding electrodes in a staggered mode are formed on the dielectric layer, a second dielectric layer is deposited on the addressing electrodes again, then upper strip-shaped grounding electrodes which are overlapped with the lower grounding electrodes are formed on the second deposited dielectric layer, and the liquid crystals are clamped between the upper substrate and the lower substrate. According to the liquid crystal grating, a transverse electric field between addressing electrodes in a traditional liquid crystal grating and grounding electrodes of an upper glass substrate is effectively restrained through the shielding effect of the upper grounding electrodes and the lower grounding electrodes on the lower glass substrate on an addressing electrode power line, and therefore the edge electric field extending to a non-addressing electrode area is restrained. The structure of the liquid crystal grating can be used for the design of liquid crystal grating with the high resolution and the large deflection angle.

The invention discloses a dicyclohexyl ethylene group substituted diphenylacetylene liquid crystal compound and a preparation method thereof. The structural general formula of the dicyclohexyl ethylene group substituted diphenylacetylene liquid crystal compound is shown in the specification, wherein (F)m, (F)n and (F)x respectively represent fluorine atom substitution, m, n and x represent substitution number of the fluorine atoms and the value of m, n and x is 0 or 1, and the cyclohexyl is trans-cyclohexyl; both R and R' represent C1-C15 alkyl, C1-C15 alkenyl, C1-C15 alkoxy, C1-C15 alkenyloxy, fluoro-substituted C1-C15 alkyl or fluoro-substituted C1-C15 alkenyl. The dicyclohexyl ethylene group substituted diphenylacetylene liquid crystal compound not only has high clearing point, wide nematic phase section, large birefringence, and low optical absorption coefficient, but also has low melting point, low viscosity and good intermiscibility, and can be used in liquid crystal optical elements; the dicyclohexyl ethylene group substituted diphenylacetylene liquid crystal compound with side fluorine can also be used in a double frequency liquid crystal display mode.

The invention relates to a nematic liquid crystal composition. The composition contains at least a nematic liquid crystal compound as shown in the formula (I), at least a nematic liquid crystal compound as shown in the formula (II), at least a nematic liquid crystal compound as shown in the formula (III), at least a nematic liquid crystal compound as shown in the formula (IV), at least a nematic liquid crystal compound as shown in the formula (V) and at least an optionally optically active compound. The nematic liquid crystal composition provided by the invention has high birefringence, low visco-elastic coefficient ratio gamma 1 / k11 and a wide phase transition temperature range. In addition, the liquid crystal composition has high ultraviolet ray stability and high thermal stability.

The invention relates to a TFT-LCD array baseplate and a manufacturing method thereof. The array baseplate comprises a grid wire and a data wire, wherein the grid wire and the data wire are formed on the baseplate, a pixel electrode and a thin film transistor are formed in a pixel region limited by the grid wire and the data wire, and the thin film transistor comprises a grid electrode, a grid insulating layer, a source electrode, a drain electrode, a doped semiconductor layer, a semiconductor layer and a passivation layer, wherein the grid electrode is formed on the baseplate, the grid insulating layer is formed on the grid electrode and covers the whole baseplate, the source electrode and the drain electrode are formed on the grid insulating layer, the doped semiconductor layer and the semiconductor layer are formed between the source electrode and the drain electrode in a transverse arrangement mode, and the passivation layer is formed on a structural graph. In the invention, the doped semiconductor layer and the semiconductor layer are arranged between the source electrode and the drain electrode in the transverse arrangement mode, thereby not only effectively reducing the internal segment difference and avoiding the rupture of a subsequently deposited thin film, but also reducing the thickness of the structural graph, reducing the box thickness and increasing the responsespeed of liquid crystals.

The invention provides a blue phase liquid crystal Fresnel lens and a preparation method thereof, and belongs to the technical field of naked eye 3D (three-dimensional) display. The invention aims at solving the problems that along with the liquid crystal display dimension increase, the TN box thickness is increased; the liquid crystal molecule response speed is decelerated; during the 2D / 3D switching, the dynamic image fuzziness occurs, and the watching effect is influenced. The blue phase liquid crystal Fresnel lens has the first technical scheme that the blue phase liquid crystal Fresnel lens comprises an upper base plate, an upper base plate transparent plane electrode layer, a lower base plate transparent plane electrode layer, a lower base plate Fresnel arc surface structure polymer layer, a blue phase liquid crystal layer and a lower base plate, wherein the blue phase liquid crystal layer is arranged between the upper base plate transparent plane electrode layer and the lower base plate Fresnel arc surface structure polymer layer. The blue phase liquid crystal Fresnel lens has the second technical scheme that the blue phase liquid crystal Fresnel lens comprises the upper base plate, the upper base plate Fresnel concave arc surface structure polymer layer, an upper base plate Fresnel concave arc surface structure polymer layer forming electrode layer, a lower base plate transparent flaky electrode layer, a dielectric layer, a blue phase liquid crystal layer and a lower base plate, wherein the blue phase liquid crystal layer is arranged among the upper base plate Fresnel concave arc surface structure polymer layer forming electrode layer, the lower base plate transparent flaky electrode layer and the dielectric layer.

The invention provides a liquid crystal display panel and a manufacturing method thereof, and relates to the field of liquid crystal display panels. The manufacturing method of the liquid crystal display panel comprises the steps of S1, coating the side, which is opposite to a color film substrate, of an array substrate with alignment liquid to form a first alignment film layer; S2, preprocessingthe side, which is opposite to the array substrate, of the color film substrate by adopting a polymer monomer; S3, injecting the liquid crystal added with a polymerizable monomer and an alignable monomer into the array substrate or the color film substrate, and then aligning and laminating the array substrate and the color film substrate to form a panel; and S4, firstly, irradiating the laminatedpanel from the side of the array substrate by adopting ultraviolet light with a first wavelength to enable the polymer monomer of the liquid crystal to form a polymer film layer on one side of the color film substrate, and irradiating the laminated panel from the side of the array substrate by adopting ultraviolet light with a second wavelength to enable the alignment liquid monomer of the liquidcrystal to form a second alignment film layer on the polymer film layer, wherein the first wavelength is greater than the second wavelength.