32results about How to "Control light transmittance" patented technology

A change in tint caused by the control of the light transmittance of a physical property element is limited by a simple structure. An optical element (1) for limiting a light with at least a specified wavelength is provided to a physical element (20) such as liquid crystal capable of controlling a light transmittance. The optical element (1) limits a light on the longer wavelength side of a wavelength corresponding to a wavelength migrating from a weak-wavelength-dependent wavelength region to a strong-wavelength-dependent wavelength region in the spectral characteristics of the physical element (20). Lights from a subject have a light with at least a specified wavelength limited at the optical element (1), and have light transmittance controlled at the physical element (20) to enter an imaging element (3). Owing to the optical element (1), a light in a wavelength region where the spectral characteristics of the physical element (20) are stable is selectively allowed to enter the imaging element (3), thereby keeping nearly constant a color balance even if the light transmittance of the physical element (20) is changed.

The invention provides an optical film, a backlight module and a display device, which belong to the technical field of display. Wherein, the optical film includes a plurality of optical units, each of which includes: a first transparent electrode; a second transparent electrode; A capsule; a plurality of polar particles located in the capsule; wherein, under the action of an electric field between the first transparent electrode and the second transparent electrode, the plurality of polar particles can be in the first state and Switching between a second state, in the first state, the plurality of polar particles are randomly distributed in the capsule, and in the second state, the plurality of polar particles gather on the surface of the capsule. The technical solution of the present invention enables the side-entry backlight module to realize local dimming effect.

The invention discloses a magnetic induced light-dimming material, a local backlight adjustment membrane, a backlight module and display equipment and belongs to the technical field of liquid crystal display. The magnetic induced light-dimming material comprises a transparent substrate and a seta array which is distributed on the surface of the transparent substrate and formed by non-transparent, magnetic and elastic setae; shapes of the elastic setae relative to the transparent substrate can be changed between an upright state and a state of being attached to the surface of the transparent substrate under the control of an external magnetic field. The magnetic induced light-dimming material forms a magnetic induced light-dimming layer, and multiple electromagnetic units controlled by virtue of a micro circuit are arranged on the magnetic induced light-dimming layer, so that the local backlight adjustment membrane is obtained, each electromagnetic unit independently controls the shapes of the elastic setae in a preset region, corresponding to the electromagnetic unit, of the magnetic induced light-dimming layer to realize control of light transmittances of different regions of the magnetic induced light-dimming layer, and further local backlight adjustment is realized. Accurate local backlight adjustment can be realized by utilizing the magnetic induced light-dimming material.

The invention discloses a method for cultivating and managing inter-planted mahonia fortunei in a walnut forest in a rocky desertificated area. The method comprises following steps: (1) picking a walnut forest for inter-planting and preparing the walnut forest; (2) accelerating germination of walnut and mahonia fortunei; (3) growing the seedlings of walnut and mahonia fortunei; (4) carrying out domestication and thinning of walnut and mahonia fortunei; (5) fix-planting seedlings of mahonia fortunei in the walnut forest; (6) removing the weeds and performing irrigation; (7) under inter-plantingconditions, fertilizing walnut trees and mahonia fortunei; (8) controlling the diseases and pests; and (9) harvesting fruits and preparing seeds. Mahonia fortunei is inter-planted in a walnut forest,spatial distribution characteristics of different plants are fully utilized, nutrients in different soil layers can be fully absorbed, the soil utilization rate of the walnut forest is increased, thedesertification damage is reduced; at the same time, the mahonia fortunei can increase the income of walnut farmers, and walnut plantation has a long term effect in relieving desertification.

The embodiment of the invention provides a display module driving circuit, a liquid crystal television and a display module driving method, relates to the field of electronic technology, and solves the technical problem in the prior art that a video processing chip is debugged with a heavy workload. The display module driving circuit comprises a data processing module, a GAMMA voltage generating module and a driving module, wherein the data processing module is used for processing an image displaying signal into a line synchronization signal, a field synchronization signal, a data driving signal and a scanning driving signal; the GAMMA voltage generating module is used for transmitting a GAMMA voltage corresponding to the GAMMA voltage value which is corrected according to a preset GAMMA curve to the driving module after receiving the line synchronization signal; and the driving module is used for generating a driving voltage by using the GAMMA voltage as the reference voltage according to the line synchronization signal, the field synchronization signal, the data driving signal and the scanning driving signal, and loading the driving voltage on pixels on a liquid crystal display module and corresponding to the line synchronization signal, the field synchronization signal and the scanning driving signal. The display module driving circuit, the liquid crystal television and the display module driving method are applied to improvement of the display effect of the liquid crystal television.

The invention discloses graphene with a folded structure. The structure of the graphene is formed by shrinking the graphene in a liquid phase environment to form ups and downs on the surface, wherein the folded parts are cone-shaped, and the height, width and distribution density of the folded parts are uniform and controllable. The folded parts can be formed in the processes of preparing the graphene and transferring the graphene to a target substrate, and are formed randomly and uncontrollably, but the folded structure formed controllably in a liquid phase, disclosed by the invention, can solve the problems. The invention realizes a novel graphene folded structure and provides a method for preparing the structure simply, conveniently and quickly on a large scale, and the graphene folded structure can be used in the fields of new energy resources, sensors, flexible electronic devices and the like.

The invention discloses a polyurea-type reflective heat-insulating airgel transparent glass coating and a preparation method thereof, and relates to the field of glass heat-insulation materials; the method comprises: combining zinc tin oxide with a perovskite structure and silica The glue is mixed with urea solution, and the material containing active aldehyde functional groups, polyvinylpyrrolidone ethanol solution and water-based additives are sequentially added under stirring to obtain the first component. The isocyanate curing agent is used as the second component. Ammonia water, The third component is obtained after water glass and silver nitrate are mixed; the first component, the second component and the third component are mixed. The method can prepare a polyurea reflective heat-insulating airgel transparent glass coating that is stable and uniform, low in cost, high in light transmittance, good in heat insulation, and weather-resistant and wear-resistant.

The invention discloses a method for interplanting camellia sinensis, alstonia scholaris and alfalfa. The method comprises the following steps: performing soil preparation and applying a base fertilizer; planting the camellia sinensis; planting the alstonia scholaris; inoculating the alfalfa with rhizobia; sowing the alfalfa; harvesting the alfalfa in real time; pruning the alstonia scholaris. According to the method, the alstonia scholaris is pruned in a natural open center shape with a single trunk, so that the light transmission rate of the alstonia scholaris can be effectively controlled, a certain shading effect can be provided for the camellia sinensis, and the growth of the alstonia scholaris is facilitated; the alfalfa is harvested in batches in earl time, so that the influence of the alfalfa on the camellia sinensis can be effectively reduced and the harvesting amount of the alfalfa can be increased; the camellia sinensis, the alstonia scholaris and the alfalfa are planted together, so that the soil resources can be fully utilized and the economic value can be increased.

Embodiments of the present invention provide a dimmer, a backlight module, a display device and a driving method thereof, which relate to the field of display technology and can avoid various disadvantages caused by the use of a direct-type backlight module in HDR image display in the prior art ; The dimming sheet includes a first substrate and a second substrate oppositely arranged, and a polymer dispersed liquid crystal layer between the first substrate and the second substrate; the dimming sheet is divided into a plurality of dimming areas; the dimming sheet is also It includes: a first electrode and a second electrode located in each dimming area; wherein, the first electrodes located in different dimming areas are set independently; the first electrode and the second electrode are used to drive the polymerization in the polymer dispersed liquid crystal layer substances to disperse liquid crystal molecules to control the light transmittance of each dimming area.