637 results about "Liquid crystal molecule" patented technology

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method. An image to be displayed can be decomposed into three sub-frames based on a field sequential display technology, each sub-frame corresponds to a color field, when a liquid crystal panel is driven according to a main color gray scale value of the color field corresponding to each sub-frame, at least one backlight source corresponding to each color field is firstly driven to emit backlight of a first duration within a time period when liquid crystal molecules reach a steady state, and then the backlight source corresponding to each color field is driven to emit backlight of a second duration within a time period when the liquid crystal molecules reach the steady state. The white light of the second duration is emitted after the first duration, so that the white light is added in the backlight lightening stage of each color field, the color gamut range of the color field corresponding to each sub-frame is effectively reduced, and the color separation phenomenon is reduced. In addition, each subframe corresponds to a single color field or a mixed color field, so that the color separation phenomenon in various algorithms can be improved.

The invention provides a liquid crystal display lightening parameter self-adaptive calibration method, and relates to the technical field of image display. The method comprises the following steps: firstly, establishing a characteristic matrix and a parameter library of liquid crystal molecules, and dynamically correcting according to a real-time working state; and based on the characteristic matrix and the parameter library, executing pixel-level forward prediction on the input image, and generating a color error distribution diagram by solving a coupling solution of a liquid crystal molecule dynamic response differential equation and a backlight attenuation compensation equation. And taking the error distribution diagram as input, obtaining a gradient optimization direction of the calibration parameter mapping diagram through back propagation calculation, and iteratively approaching the optimal pixel value compensation amount in each frame period. And injecting a test pulse into the characteristic pixel point, capturing a voltage response curve through a sampling circuit, and converting the voltage response curve into a real-time correction value mapping graph. And finally, carrying out weighted fusion on the real-time correction value mapping graph and the pixel value compensation amount to generate a calibration parameter mapping graph. The self-adaptive calibration of the display parameters is improved, and the display consistency and the color accuracy are effectively improved.

Disclosed is a liquid crystal composition. The liquid crystal composition includes liquid crystal molecules including at least one of a liquid crystal compound having an alkenyl group and a liquid crystal compound having an alkoxy group, and a first stabilizer including a compound having a structure represented by Formula 1:where n is 0 or 1; m is 0 or 1; k is 0 or 1; Z1, Z2, and Z3 are each independently a single bond, —C═C—, —OCO—, —COO—, —CF2O—, or a C1 to C5 alkylene group; X1, X2, X3, and X4 are each independently hydrogen or halogen; Y is hydrogen, an alkylene group, an alkoxy group, a hydroxyl group, —NHCOCH3, or ═O; and A and B are cyclic compounds.

The present disclosure provides an alignment method and application of a cyanobiphenyl liquid crystal composite doped with an organic donor material. The organic small molecule is doped in the host cyanobiphenyl liquid crystal, and the small molecule donor / cyanobiphenyl liquid crystal mixture is directionally induced to assemble by virtue of the large surface energy difference between the superhydrophobic structured substrate and the superhydrophilic flat substrate. The liquid crystal molecules form a uniform arrangement under the action of the liquid bridge, driving the self-assembly of the small molecule donor to be embedded in the cyanobiphenyl liquid crystal, forming a structure of electron donor-donor, enhancing the conductivity of the liquid crystal composite device, studying the influence of the surface tension of the solvent on the performance of the composite, and giving a direction for the selection of the solvent. Compared with the methods of inducing the alignment of liquid crystal molecules and donor small molecules by using electric fields, magnetic fields, photolithography, capillary methods, etc., this method is simpler and more feasible, easy to transfer, the circuit pattern is easy to design, and has good stability.

The invention provides a display module and a display device, and the display module comprises a display panel which comprises a plurality of pixel units arranged in an array; the light control device is arranged on the light emitting side of the display panel, the light control device comprises a first regulation and control layer and a second regulation and control layer which are sequentially arranged on the display panel in a stacked mode, the first regulation and control layer comprises a first refraction layer and a second refraction layer covering the first refraction layer, the first refraction layer comprises a plurality of lenses arranged in an array mode, and the second refraction layer comprises a second refraction layer covering the second refraction layer; the orthographic projection of each lens on the display panel at least covers two pixel units, the refractive index of the first refraction layer is larger than that of the second refraction layer, when the display module is in a three-dimensional display state, liquid crystal molecules in the second regulation and control layer do not deflect, and when the display module is in a two-dimensional display state, liquid crystal molecules in the second regulation and control layer do not deflect. And the second regulation and control layer is equivalent to a plurality of lens units arranged in one-to-one correspondence with the lenses. The display module provided by the embodiment of the invention can reduce view crosstalk in a three-dimensional display state.

The invention provides a display control method and system for a liquid crystal display screen, and the method comprises the steps: carrying out the nonlinear spectrum mapping processing of an input RGB drive value, and obtaining a theoretical emission spectrum through combining with the response characteristics of liquid crystal molecules; calculating a reflection spectrum component in the multilayer structure according to the ambient light spectrum, and superposing the reflection spectrum component with the theoretical emission spectrum to obtain an actual observation spectrum; calculating a difference value between the actual observation spectrum and the target spectrum, and converting the difference value into an RGB correction value through a constraint optimization algorithm to obtain an RGB driving value after ambient light compensation; and calculating actual white point color coordinates, and adjusting the actual white point color coordinates to a standard white point position through a progressive white point migration algorithm. Display parameters can be dynamically adjusted according to real-time ambient light conditions, the influence of ambient light reflection on colors is effectively compensated, meanwhile, color temperature consistency and color accuracy are ensured through white point correction, the display quality under different ambient lights is remarkably improved, and the visual experience of a user is improved.

The present application discloses a liquid crystal compound, a liquid crystal composition, and a retardation film, relating to the technical field of liquid crystal displays. In order to solve the problems of poor alignment order degree, low Δn value, and low crosslinking completion degree in the existing liquid crystal system, the present application sets the structural general formula (I) of the liquid crystal compound and applies it to the retardation film. The liquid crystal compound of the present application adopts a longer liquid crystal main chain, making the arrangement of liquid crystal molecules more orderly. The dense arrangement of chromogenic groups increases the van der Waals force and hydrogen bond interaction between liquid crystal molecules, thereby improving the alignment order degree and Δn value, achieving the purpose of improving dispersion, reducing manufacturing costs, reducing the film thickness requirement, and improving the crosslinking completion degree.

The invention discloses a laser depilation dynamic parameter adjustment method based on skin typing recognition, and relates to the technical field of laser depilation, and the method comprises the steps: constructing a three-dimensional skin model of a depilation region through multi-dimensional data cross validation; detecting local pigmentation caused by friction in each area; detecting the blood flow signal intensity of capillary vessels around the hair follicles, judging the period of the hair and generating a hair follicle activity thermodynamic diagram in real time; a three-dimensional energy focus is formed through double-beam crossing; skin curved surface data are obtained through a pressure sensor, liquid crystal molecules in a light valve are driven to be arranged, and light spots are adjusted to be in the shape attached to an unhairing area; the basal metabolic rate of the patient is measured through a noninvasive bioelectrical impedance analysis technology, and the energy density is adjusted based on the basal metabolic rate; and establishing a digital twinborn model, and integrating depilation data, skin state and hormone level information. A three-dimensional energy focus is formed through double-beam crossing, energy is accurately focused on the root of the hair follicle, and epidermis damage is avoided.

The invention discloses a liquid crystal screen fault detection method and system, and relates to the technical field of liquid crystal screen fault detection, and the method comprises the following steps: employing a uniform grid division method to divide a whole liquid crystal screen display region into a plurality of sub-regions with the same area, enabling each sub-region to comprise a plurality of pixel points, a standard gray scale pattern is configured for each sub-region to ensure that all the sub-regions are subjected to unified driving stimulation; a control circuit is used for applying step-by-step changing driving voltage to the liquid crystal screen, so that each sub-region changes according to a preset gray-scale pattern under a unified time sequence, and liquid crystal molecules are driven to rotate and generate optical response. According to the method, accurate identification and dynamic amplification of nonlinear response coupling of the liquid crystal screen are realized through sub-region-level response modeling and a disturbance driving strategy, the detection capability of hidden defects is improved, the method is suitable for high-reliability display scenes such as vehicle-mounted display scenes and aviation display scenes, and the stability and the safety of a display system are guaranteed.

The invention provides a photo-thermal response T-type liquid crystal molecule, a preparation method thereof and application of the photo-thermal response T-type liquid crystal molecule to an intelligent window. The structural formula of the T-type liquid crystal molecule is shown in the formula (1). According to the technical scheme, the liquid crystal molecule is in a T type, an azobenzene structure in the liquid crystal molecule is subjected to reversible conversion of cis and trans under switching of ultraviolet light and visible light, and meanwhile, a molecular structure of 8CB and a butylene adipate structure can be subjected to phase change at room temperature, so that the molecule has a light response function, and meanwhile, the light response effect of the molecule is improved. The material also has a thermal response function at room temperature; besides passive control through light and heat, after electrification, liquid crystal molecules are arranged in order, an electric response function is achieved, and the intelligent window can be actively recovered to be transparent. The molecule not only has multiple responses, but also is a low-carbon environment-friendly material. According to the technical scheme, the alkoxy chain is linked to the side chain of the liquid crystal molecule, asymmetry is increased, the liquid crystal molecule has a richer phase structure, and the liquid crystal molecule has a huge development prospect in the field of intelligent windows.

The present invention relates to a liquid crystal light modulating device comprising substrates coated with a transparent conductive layer and a liquid crystal composition sandwiched between the substrates with a dichroic dye added; the resulting liquid crystal light modulating device can exist in at least two stable states that remain substantially stable after removal of a voltage, wherein at least one of them is the liquid crystal molecules arranged in a substantially ordered manner, and at least one of them is the liquid crystal molecules arranged in a multi-domain and disordered manner; the applied voltage makes the arrangement of liquid crystal molecules can be quickly switched between the above stable states, and different liquid crystal molecule arrangements from the stable states can be obtained; the above liquid crystal light modulating device for incident light can be adjusted between the minimum absorption and minimum scattering state of high clarity and transparency to the maximum absorption and maximum scattering state of the private state, and at the same time realizes the zero-power privacy protection and zero-power clarity and transparency of the two states, and obtains the excellent regulation of the sun's radiant energy and energy-saving light modulating glass that can quickly switch between transparent and privacy-protecting states.

The invention relates to the technical field of liquid crystal devices, and particularly discloses a normally-on flexible liquid crystal dimming film and a preparation method thereof. The structure of the normally-on flexible liquid crystal dimming film sequentially comprises a first flexible transparent substrate, a first vertical alignment layer, a dye liquid crystal layer, a second vertical alignment layer and a second flexible transparent substrate from top to bottom, wherein the materials of the first vertical alignment layer and the second vertical alignment layer are selected from side chain type transparent polyimide materials; the dye liquid crystal layer comprises black dichroic dye and negative phase liquid crystal. By accurately controlling the orientation arrangement of liquid crystal molecules, a high-precision pretilt angle is realized, the light modulation amplitude in a visible light broadband range reaches 45% or above, and the photoelectric property is equivalent to that of a normally dark (forward) mode liquid crystal dimming film.

The invention discloses an LCoS device and a phase modulation method of the LCoS device. The LCoS device comprises a transparent electrode, a liquid crystal layer, a metasurface layer and a back plate which are sequentially arranged from the incident end to the reflecting end. A projection included angle is formed between the long axis of the metasurface layer and the liquid crystal molecule director of the liquid crystal layer on a propagation plane; the liquid crystal layer is used for performing phase modulation on a parallel first polarization component of incident light, and the conversion metasurface is used for performing polarization state exchange on the parallel first polarization component and an orthogonal second polarization component of the incident light; the back plate is used for reflecting incident light; and the liquid crystal layer is used for performing phase modulation on the exchanged second polarization component, so that the emergent first polarization component and the emergent second polarization component are subjected to phase modulation. The metasurface layer is introduced, a polarization-dependent modulator is converted into a polarization-independent modulator through two times of liquid crystal layer passing and one time of polarization conversion, and the fundamental limitation of a traditional LCoS device is solved.

The present invention relates to the technical field of liquid crystal display drive control, and discloses a driving method and system for a high refresh rate liquid crystal display screen. The method includes: a motion amount detection module calculates the motion intensity of the dynamic area through inter-frame comparison; a voltage excitation adjustment module applies voltages differentially according to the dynamic / static areas, and the dynamic area uses asymmetric voltages to improve the response speed; a gray scale adjustment module dynamically optimizes the voltage amplitude based on the local contrast to smooth the gray scale; an adaptive refresh rate module fuses the motion intensity and the image type to switch the refresh rate gear; a charge balance management module intelligently triggers sub-region reverse voltage pulses in a static scene to eliminate afterimages. The system eliminates afterimages through the cooperation of multiple modules, dynamically manages charge balance, intelligently switches the refresh rate gear based on the motion intensity, and cooperates with voltage regulation to reduce static power consumption, adopts sub-region gray scale compensation to optimize the detail display, and combines asymmetric high-voltage drive to improve the response speed of liquid crystal molecules.

The invention discloses a uniform Bessel beam drilling device, and relates to the technical field of optical devices, the uniform Bessel beam drilling device mainly comprises a light generation device, a liquid crystal optical element and a regulation and control device, the light generation device is used for generating circularly polarized light and transmitting the circularly polarized light to the liquid crystal optical element; the arrangement mode of liquid crystal molecules in the liquid crystal optical element can be changed through the light-operated orientation technology, the liquid crystal optical element modulated through the light-operated orientation technology can receive circularly polarized light and form uniform Bessel light, and the liquid crystal optical element can have the function of a lens after being modulated through the light-operated orientation technology. Uniform Bessel light can be converged; the regulation and control device comprises a focusing optical element, and the focusing optical element can converge the uniform Bessel light emitted by the liquid crystal optical element again. The invention further discloses a uniform Bessel light drilling method which is implemented by adopting the uniform Bessel light beam drilling device, the energy utilization rate can be improved, the drilling effect is good, and the light path is simple.

The embodiments of the present application relate to the technical field of optical communications. Disclosed are a spatial light modulator, a wavelength selective switch, an optical communication device, and a system. The spatial light modulator comprises a first modulation assembly and a second modulation assembly, which are sequentially disposed in a specific direction. The first modulation assembly comprises a first common electrode, a first pixel electrode array, and a first liquid crystal layer located between the first common electrode and the first pixel electrode array, wherein liquid crystal molecules in the first liquid crystal layer are arranged in a periodic fan-shaped columnar shape in a plane perpendicular to the direction of incidence of optical signals. The second modulation assembly comprises a second common electrode, a second pixel electrode array, and a second liquid crystal layer located between the second common electrode and the second pixel electrode array, and further comprises a metasurface layer, a reflecting layer and a CMOS silicon-based backplane, which are sequentially disposed in the specific direction, wherein pixel electrodes in the second pixel electrode array are electrically connected to the CMOS silicon-based backplane. The spatial light modulator has polarization-independent phase response characteristics, and enables fast and crosstalk-free switching of an output port for optical signals when applied to a wavelength selective switch.

The invention discloses a phase modulation method of an achromatic liquid crystal holographic lens, and belongs to the technical field of holographic optics. According to the method, the spatial orientation distribution of liquid crystal molecules is regulated and controlled, a multi-wavelength phase modulation model is constructed, and synchronous focusing of red light, green light and blue light is achieved. The method specifically comprises the following steps: calculating a liquid crystal molecule deflection angle according to an incident light wavelength and a lens position to form refractive index gradient distribution; holographic phase distribution is generated based on molecular orientation, and light rays with different wavelengths are focused to the same focus; the three-wavelength focus light intensity deviation is controlled by dynamically optimizing the phase intensity coefficient and combining finite element simulation iteration adjustment. According to the invention, the chromatic aberration phenomenon of a traditional lens is eliminated, confocal plane focusing of light with different wavelengths within a certain focal length range is realized, and the focus intensity consistency is improved. The prepared ultrathin liquid crystal lens is low in thickness, obviously improves the light focusing efficiency, and is suitable for a high-precision imaging system and display equipment.

The embodiment of the invention discloses a spatial light modulator, a wavelength selection switch, optical communication equipment and a system, and relates to the technical field of optical communication, and the spatial light modulator comprises a first modulation assembly and a second modulation assembly which are sequentially arranged along a specific direction. The first modulation assembly comprises a first common electrode, a first pixel electrode array and a first liquid crystal layer located between the first common electrode and the first pixel electrode array. Liquid crystal molecules in the first liquid crystal layer are periodically arranged in a fan-column shape in a plane perpendicular to the incident direction of an optical signal. The second modulation assembly comprises a second common electrode, a second pixel electrode array and a second liquid crystal layer located between the second common electrode and the second pixel electrode array, and further comprises a super surface layer, a reflecting layer and a CMOS silicon-based backboard which are sequentially arranged in the specific direction. And pixel electrodes in the second pixel electrode array are electrically connected with the CMOS silicon-based back plate. The spatial light modulator has a polarization-independent phase response characteristic, and when the spatial light modulator is applied to a wavelength selective switch, output port switching of optical signals can be rapidly achieved without crosstalk.

The utility model relates to the field of laser processing, in particular to a novel silicon-based liquid crystal spatial light modulator, which is characterized by sequentially comprising a complementary metal oxide semiconductor (CMOS) silicon-based back plate (100), a central symmetry aluminum pixel electrode layer (101), a medium reflecting layer (102), a lower orientation layer (103), a liquid crystal molecular layer (104), an upper orientation layer (105), an indium tin oxide (ITO) electrode layer (106), a glass substrate (107) and an anti-reflecting layer (108) from bottom to top. According to the utility model, the reflectivity, the diffraction efficiency and the phase flatness of the silicon-based liquid crystal spatial light modulation device are improved, the electric field is uniformly distributed, the fringe field effect is reduced, the switching speed of phase modulation is effectively improved, the laser processing efficiency and quality are greatly improved, and more laser processing modes are realized. The technical scheme provided by the utility model can be applied to multiple fields of invisible cutting, laser marking, laser welding and the like.

The invention discloses an intelligent starry sky tent control method for electronic control atomization dimming glass, relates to the technical field of intelligent tent control, and aims to solve the problems that control of the electronic control atomization dimming glass in a starry sky tent mostly depends on manual operation in the prior art, and automatic adjustment is lacked according to environmental changes and personnel requirements. The atomization state of the glass is automatically and accurately adjusted according to the change of the environment temperature, when the environment temperature rises, in order to ensure that polymer dispersed liquid crystal molecules can smoothly adjust orientation and further achieve an ideal display effect, the voltage is properly increased so as to enhance the electric field force, and when the environment temperature drops, the system reduces the voltage and reduces the electric field force, so that the effect of improving the display effect is achieved. The glass can be always kept in a good transparent state no matter how the external environment temperature fluctuates, meanwhile, the voltage is reduced when the environment temperature is reduced, energy waste is effectively avoided through the measure, and the good energy-saving characteristic is embodied.

The invention relates to the technical field of display equipment, in particular to a liquid crystal module based on natural environment light total reflection, display equipment and a control method thereof. The liquid crystal module based on total reflection of natural environment light comprises a first substrate, a second substrate, a liquid crystal layer and a reflecting layer, liquid crystal molecule arrangement of the liquid crystal layer can be regulated and controlled so that reflected environment light can form images of different gray levels or colors, and the reflecting layer is used for reflecting the environment light to the liquid crystal layer. The liquid crystal layer and the reflecting layer are arranged between the first substrate and the second substrate, a polaroid is arranged on the surface, facing the display side, of the first substrate, and a shading layer is arranged on the side, back to the liquid crystal layer, of the second substrate. The reflecting layer and the liquid crystal layer are combined to cooperatively modulate ambient light, so that energy-saving display without backlight is realized; and meanwhile, the double-substrate structure ensures stable packaging of the optical component 0, and the display uniformity is improved.

The invention discloses a display device and a manufacturing method thereof. The display device comprises a display panel, a liquid crystal box and a linearly polarized light rotating structure arranged between the display panel and the liquid crystal box, the liquid crystal box is arranged on the light emitting side of the display panel, and the liquid crystal box comprises a first substrate, a second substrate, a lens set, a first orientation layer, a liquid crystal layer and a second orientation layer, the lens group is located between the first substrate and the second substrate, a plurality of lenses of the lens group extend in the first direction, the orientation direction of the first orientation layer and the orientation direction of the second orientation layer are parallel to the first direction, and an included angle is formed between the polarization direction of linearly polarized light emitted from the display panel and the first direction. The linearly polarized light rotating structure is configured to rotate the polarization direction of the emergent light to be parallel to the first direction. Due to the fact that the arrangement direction of the liquid crystal molecules needs to be parallel to the polarization direction, the arrangement direction of the liquid crystal molecules can be parallel to the first direction, arrangement of the liquid crystal molecules has better consistency, and occurrence of liquid crystal molecule misalignment is reduced to a great extent.

The invention discloses a reflective display device and a driving method, the reflective display device comprises a first bistable liquid crystal box and a light absorption layer, the first bistable liquid crystal box comprises a color film substrate, a first array substrate and a first bistable liquid crystal layer, the first bistable liquid crystal layer is provided with first bistable liquid crystal molecules, and the first bistable liquid crystal molecules are arranged in the first bistable liquid crystal box. All the first bistable liquid crystal molecules reflect invisible light rays in the reflection state, and the light absorption layer is arranged on the side, facing the first array substrate, of the first bistable liquid crystal box. By controlling the first bistable liquid crystal molecules to present fog states with different haze degrees, the pixels can realize gray scale display with different brightness degrees, and the haze degrees of the fog states of the first bistable liquid crystal molecules can be adjusted through the driving voltage, so that the pixels can realize more gray scales; the reflective display device can achieve color reflective display with a good display effect by being matched with the color film substrate, and is simple in structure, small in box thickness and lower in manufacturing cost.

The present invention discloses a variable tint lens and eyeglasses using the lens, wherein the variable tint lens includes a tint varying film including transparent first and second substrate layers, a liquid crystal layer, and a power supply device for supplying power to each layer of the tint varying film; a dichroic dye molecule layer is provided on a surface of liquid crystal molecules of the liquid crystal layer, and a direction in which the liquid crystal molecules are aligned in each layer of the tint varying film is adjustable with a voltage provided by the power supply device. The whole lens can adjust swiftly and features a fast response; the adjustable range is large because of the simple structure and high transmittance. Moreover, it can also enable multi-tint adjustment when a multi-layer tint varying film is used for the lens; it can also adapt to various environments.

The invention discloses a display module, a display device and a manufacturing method.The display module comprises a display panel used for displaying two-dimensional images and a switching assembly arranged on the light emitting side of the display panel, the switching assembly comprises a first substrate, a second substrate and a liquid crystal layer, the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is arranged between the first substrate and the second substrate. The first substrate comprises a first substrate, and a lens layer and a first alignment layer which are stacked in sequence; the lens layer comprises a plurality of micro lenses which are made of a resin material and are formed by adopting a hot reflux process; the first alignment layer comprises a plurality of first alignment grooves which are regularly arranged, and liquid crystal molecules of the liquid crystal layer are regularly arranged according to the first alignment grooves and form an initial inclination angle with the first substrate. According to the embodiment provided by the invention, the resin material lens is formed by using the hot reflux process, and the alignment layer which covers the lens and is provided with the same alignment groove is formed by performing inclined evaporation on the inorganic material, so that the alignment capability and the display effect of the display module are effectively improved.

A light-emitting module and a display device are provided. The light-emitting module includes a light-emitting plate and a first light-adjusting plate, and the first light-adjusting plate is located on a light-exiting side of the light-emitting plate. The first light-adjusting plate includes: a first polymer liquid crystal layer including polymer networks and liquid crystal molecules dispersed in the polymer networks; and a first electrode layer and a second electrode layer disposed oppositely on two sides of the first polymer liquid crystal layer. The first electrode layer includes at least two first electrodes spaced apart.

The invention relates to the technical field of visual image display processing, and discloses a mirror-free three-dimensional visual image display system and method, and the method comprises the steps: obtaining the illumination information of a scene, generating an illumination control instruction, transmitting the illumination control instruction to a control receiving unit of a light source module, and adjusting the illumination intensity of an illumination unit. A light field modulation module responds to an illumination control instruction, a modulation layer controls the arrangement direction of liquid crystal molecules, a polaroid modulates the liquid crystal molecules, an illumination unit responds to the light field modulation module to control and generate illumination, a feedback unit monitors scene real-time light phase information, and a light phase modulation instruction is output according to the light phase information. A light phase optimization instruction is controlled and output according to light phase modulation instruction input, a high-speed driving unit of the driving control module sends the light phase modulation instruction to a phase compensation unit of the light field modulation module, an output illumination control instruction is adjusted through a microprocessor, and the flexibility of three-dimensional visual image display is achieved.

The invention relates to a head-up display, a use method thereof, electronic equipment and a vehicle comprising the same. The head-up display comprises a backlight system, a liquid crystal display screen, a temperature sensor and a controller, the clear temperature of a liquid crystal material used by the liquid crystal display screen ranges from 105 DEG C to 150 DEG C, and the temperature sensor is arranged on the liquid crystal display screen and used for detecting the temperature of the liquid crystal display screen; the backlight system, the liquid crystal display screen and the temperature sensor are all electrically connected with the controller. The clear temperature of the liquid crystal material in the liquid crystal display screen included in the head-up display is 105 DEG C or above, even if the display screen in the head-up display is overheated due to the fact that sunlight flows backwards, the local concentrated temperature cannot exceed the clear temperature of liquid crystal molecules, then the liquid crystal molecules can be prevented from being dissolved, the liquid crystal display screen can be prevented from losing efficacy, and therefore the user experience is improved. The head-up display provided by the invention can avoid the problem of local non-display caused by sunlight backflow.

The invention provides a fullerene pyrrolidine enantiomer mediated cholesteric liquid crystal with circular polarization luminescence property and nonlinear anti-saturated absorption property, and a preparation method and application thereof. The method comprises the following steps: dissolving C60, paraformaldehyde and (R / S)-(+ / -)-alpha-methylbenzylamine in an organic solvent, and carrying out heating reflux reaction to obtain fullerene pyrrolidine enantiomer molecules; dissolving in carbon disulfide to obtain an enantiomer solution; dissolving achiral dye molecules in a solvent to obtain a dye solution; and dropwise adding the enantiomer solution and the dye solution into thermotropic liquid crystal molecules, and drying to obtain the thermotropic liquid crystal. The method is simple, the obtained cholesteric liquid crystal system shows a characteristic fingerprint texture and has a periodic spiral structure, and the doping proportion of chiral molecules is easy to adjust; the composite system has good time stability and is not prone to phase separation; the liquid crystal platform shows good circular polarization luminescence performance and third-order nonlinear optical property, and is a cholesteric liquid crystal platform with an integrated function.

A liquid crystal display device includes a liquid crystal layer disposed between first a second substrates, the liquid crystal layer including a plurality of liquid crystal molecules, a plurality of pixel electrodes and a plurality of data lines disposed over the first substrate and configured to control the orientation of the liquid crystal molecules to modulate light, a passivation layer formed over the first substrate, the passivation layer including a plurality of first filled elongated contact trenches electrically connecting a plurality of the pixel electrodes and a plurality of second filled elongated contact trenches electrically connecting a plurality of the data lines, a light shielding layer disposed over abutting portions of adjacent color filters of respective sub-pixels, the light shielding layer configured to inhibit color mixing and block cross-talk between the adjacent sub-pixels, and a backlight system configured to provide illumination through the liquid crystal layer.