120results about How to "Solve the lack of brightness" patented technology

An improved automatic image capture system for an intelligent mobile device having a camera guides a user to position the camera so only a single image needs to be automatically captured. A trapezoidal view finder on a display of the intelligent mobile device may be used to orient the camera with respect to a target document so there is an appropriate pitch and roll angle between the camera and the target document to avoid shadows caused by the camera or user. Further the user is guided to maximize the occupancy of the view finder with the document so that the document is maximized within the view finder. When all requisite conditions are satisfied, the camera automatically captures the image of the document for post-processing.

An apparatus that provides an electronic image of areas around sides and rear of a large tractor trailer rig produced on a weatherproof screen that is located on the lower portion of the driver's side mirror. One (1) camera would be located on the rear of the trailer in a center mounted position, while another camera would be located on a passenger side near the front of the vehicle so that it can see the entire side of the vehicle. The cameras would be equipped with fixed wide-angle lenses. The video signal from each camera would be routed to an automatic switcher that displays each signal for a pre-determined time or allows for the manual selection of either camera on a permanent basis. The video signal is then displayed on the weatherproof monitor portion of the side view mirror. In such a manner the truck driver can look at the mirror and the monitor in order to see all three (3) sides of the vehicle at once. This feature eliminates looking in various directions to check for obstructions while backing up or changing lanes.

The invention relates to a holographic projection system wherein light modulator means SLM with electromechanically moved micro-mirrors modulate a light wave front LWmod. According to the invention, a hologram processor HP sets micro-mirror surfaces of prior art spatial light modulator which are disposed as controllable diffraction gratings on a substrate of a control circuit, such that they reach a certain diffraction grating amplitude, by moving them continuously at right angles to the substrate, said diffraction grating amplitude being dependent on the content of a sequence of video holograms. The diffraction grating modulate a light wave which is emitted by the light modulator means and which generates illumination capable of generating interference according to a phase hologram, so that the modulated light wave is used directly for the holographic reconstruction.

A planar light source unit including a light guiding plate (1) having an anisotropic diffusing surface (1h) which emits anisotropic diffusion light, and a light emitting source (2) for supplying light to the light guiding plate, the anisotropic diffusing surface being formed into a shape configured to give a gradation of the anisotropic diffusion light intensity.

According to the present invention, area control of a liquid crystal display device prevents luminance insufficiency attributing to leaking of illumination light between adjacent areas. A peak luminance detector detects a peak luminance area in which a luminance level is equal to or higher than a first threshold. A peripheral luminance detector detects luminance levels of peripheral areas located adjacent to the peak luminance area. When the average of the luminance levels of the peripheral areas is equal to or lower than a second threshold, a peak luminance corrector increases a light source luminance level of a backlight cell that corresponds to the peak luminance area.

A surface light source device of side light type 40 comprises a guide plate 42, a primary light source 3 comprising a wedge-shaped light source element 7 and a reflector 8, a reflection sheet 21, a prism sheet 41 and a light-scattering sheet 23. The guide plate 42 is wedge-shaped in cross-section and has a back surface 42B and an emission surface 42C. The emission surface 42C is a prism surface. A scattering pattern 24 is provided on the back surface 42B. The scattering pattern 24 comprises a great number of micro-dots, which are sufficiently small that they are hardly visible. Covering rate of the micro-dots is high near an incidence surface 42A, especially at the corners, thereby preventing brightness reduction in a region AR1. Irregularity of the dot arrangement avoids moaré streaks caused in relation to a color filter arrangement of a liquid crystal panel.

Provided are an optical sheet member including an optical conversion sheet containing a fluorescent material which absorbs at least a part of light in a wavelength range of 380 nm to 480 nm, converts the absorbed light into light in a wavelength range longer than that of the absorbed light, and re-emits the converted light, and a wavelength selective reflective polarizer functioning in the wavelength range of at least a part of the light in the wavelength range of 380 nm to 480 nm, in which both of front brightness and a color reproduction range are improved in a case of being incorporated into a display device using backlight which emits light having at least a blue wavelength range; and the display device.

A light source bulb 22 is inserted and fixed into a reflector 24 from a side in a position placed downward apart from an optical axis Ax. Thus; it is possible to effectively utilize an optical-axis side region in a reflecting plane 24a for a light distribution control. Moreover, an almost prism-shaped light transmitting member 30 is provided in the vicinity of the upper end of the outer peripheral edge portion of a projection lens 28 between the projection lens 28 and the reflector 24, and a direct light from a light source 22a toward the upper space of the projection lens 28 is emitted forward to be deflected downward. Consequently, it is possible to increase the amount of a light to be irradiated on the forward part of a vehicle, and furthermore, to carry out a deflection control for the direct light emitted from the light source 22a with high precision.

Battery powered electrical equipment such as a portable personal computer operates in one of plural power saving modes to control operating speed and display brightness. The remaining capacity of the battery powering the electrical equipment is derived and one of the power saving modes is selected. The selected power saving mode is automatically displayed in close relationship with the remaining battery capacity so that an operator can readily determine the remaining operating time of the equipment.

The embodiment of the invention discloses a display panel, a driving method and a display device. The display panel comprises a substrate base plate, wherein the sub-pixels are located on one side of the substrate base plate; a switch module; wherein the first end is electrically connected with the first end of the driving module, and the second end is connected with the bias compensation voltage end; the picture updating period comprises a data writing stage and a maintaining stage; the maintaining stage comprises a first stage and a second stage; the driving module is used for generating a driving current according to the data voltage transmitted by the data writing module in a data writing stage; the driving circuit is also used for providing driving current for the light-emitting element in a second stage; the switch module is used for providing bias compensation voltage for the first end of the driving module in a first stage. The problem of insufficient brightness of an existing display panel due to the hysteresis effect of the driving transistor is solved, the offset of the bias voltage of the driving transistor can be reduced in advance, the electrical performance of the driving transistor is improved, the accuracy of the light-emitting brightness in the light-emitting stage is guaranteed, and the display effect of the display panel is improved.

A liquid crystal display device includes a TFT substrate, a counter substrate, a liquid crystal layer held between the TFT substrate and the counter substrate and containing a liquid crystal composition, a linear polarizer attached to an outer surface of the TFT substrate, a circular polarizer attached to an outer surface of the counter substrate, a reflective electrode section which is located in an inner surface of the TFT substrate, a counter electrode section which is located in an inner surface of the counter substrate. The reflective electrode section includes a pair of electrodes to apply a lateral electric field to the liquid crystal layer.

Provided is a substrate for light-emitting element, which has a simple structure and nevertheless is capable of obtaining a high light extraction efficiency when a light-emitting element is mounted thereon.A substrate for light-emitting element, which comprises a substantially flat-form base member made of a sintered product of a first glass ceramics composition comprising a glass powder and a ceramics filler, and a frame member bonded on an upper main surface of the base member, wherein a concave is formed to have a bottom surface constituted by a part of the upper main surface of the base member and a side surface constituted by an inner wall surface of the frame member, so that the bottom surface of the concave has a mounting portion for mounting a light-emitting element, and the frame member is made of a sintered product of a second glass ceramics composition comprising a glass powder and a ceramics filler, which has a diffuse reflectivity.

The invention relates to a colored quantum dot photoluminescence material based on microcapsule electrophoresis as well as a luminescence method and application thereof. According to the material, blue backlight is used for stimulating red or green quantum dots and the quantum dots are used as sub-pixels for luminescence; then the quantum dot are put into a microcapsule; the position of the quantum dots is determined through controlling voltage on the surface of the microcapsule, so that the size of a luminous flux is controlled; a light filtering material is added into an electrophoresis display solution so that only blue light can pass through. According to the colored quantum dot photoluminescence material provided by the invention, the quantum dots are combined with a microcapsule electrophoresis display technology, and the color of each colored sub-pixel and the luminous flux are controlled through controlling the direction and size of voltage; then the light is combined to form light with the needed color. By adopting the colored quantum dot photoluminescence material, the luminous flux is greatly improved, the energy utilization rate and the brightness are enhanced and the brightness of colored electronic paper is improved; meanwhile, a color range is expanded and the display quality is improved; the colored electronic paper with good performance can be improved, so thatthe colored quantum dot photoluminescence material has a good application prospect.

The present invention relates to a thin film sensor, capacitive touch panel having the sensor and preparation method thereof and terminal product. The thin film sensor of the present invention has only one optically conductive substrate. Specifically, only one optically transparent substrate is used, a sensing electrode layer and a driving electrode layer are coated on the upper and lower surfaces of the substrate, respectively, which helps to reduce the thickness of the thin film sensor on one hand, thus contributes to the development of light and thin of a touch panel and touch electronics; on the other hand, the material selection and the preparation process are simple, the selection of two substrates is not necessary to prepare two optically conductive thin film.

To provide a substrate for light-emitting element, which is capable of sufficiently dissipating heat generation of a light-emitting element solely by a heat dissipation layer disposed in parallel with a light-emitting element-mounting surface of the substrate, which is economically advantageous as compared with thermal vias.A substrate for light-emitting element, which comprises a substrate main body made of a sintered product of a first glass ceramics composition comprising a glass powder and a ceramics filler, wherein a surface on the side where a light-emitting element is to be mounted, is regarded as its main surface, and parts of wiring conductors for electrically connecting electrodes of the light-emitting element and an external circuit, are provided on the main surface; a heat dissipation layer formed on the substrate main body in such a shape to exclude said parts of wiring conductors and the vicinity around them and the periphery of the main surface, made of a metal material containing silver, having a thickness of from 8 to 50 μm and having a flat surface; and an insulating protective layer formed to cover the entirety of the heat dissipation layer including its edge and having a flat surface.

The invention discloses a 360-degree image synchronization acquisition system which can provide a uniform illumination environment and simultaneously acquires a 360-degree image, and belongs to the field of image acquisition devices. The system comprises a support frame, image acquisition devices, a flashlight group, a rack, a spherical holder, a synchronous trigger and a control host. The surface of the support frame is covered by diffuse reflection photography paper to form a closed environment. The flashlight group is arranged on the support frame. The rack is placed in the support frame. The image acquisition devices are fixed on the rack through the spherical holder. Each image acquisition device is connected with the synchronous trigger and the control host. The system can instantly acquire the 360-degree high-definition image of a human body or a scene, and can be applied to three-dimensional reconstruction of video game models, computer vision data acquisition and other fields.

The present invention provides a LED street lamp having high heat dispersion, including a LED source and its driving circuit, the LED source and its driving circuit are fixed on the aluminum base circuit wafer, characterized in that the aluminum base circuit wafer is fixed on the metallic lamp case, being integrity with radiator and lamp. The LED street lamp of the invention greatly enhances the radiating performance of the LED circuit wafer, reduces working temperature of LED directional light, enhances working life of LED source.

The present invention provides a display screen and a display apparatus. The display screen includes a transparent substrate and a thin film on a surface of the substrate. The thin film has a wavelength selection characteristic, and has one reflection apex in a red wave band, a green wave band and a blue band respectively, an average transmitting rate of other visible light wave bands except for the reflection apexes is larger than 85%; wherein, a peak reflectance of the green reflection apex and the blue reflection apex is a first ratio and a peak reflectance of the red reflection apex and the blue reflection apex is a second ratio so that human eyes can not detect a difference between a color of an emergent light and a color of an incident light after a transmission of the sunlight to the thin film in sunny days. The reflection screen has a high transmittance for the sunlight and a constant color, and thus the reflection screen does not affect the way that a driver observes sceneries outside a vehicle. At the same time, the reflection screen has a high reflectivity for information light projected by a projector so as to greatly solve a problem of insufficient luminance.

The invention relates to the technical field of electronics and discloses a screen module, an assembling method for the screen module and an electronic device. In the embodiment of the invention, the screen module comprises a liquid crystal glass component, an adhesive layer and a middle frame, wherein the liquid crystal glass component comprises a liquid crystal glass and a protecting film; the size of the protecting film is more than the size of the liquid crystal glass; the protecting film is attached to the surface of the liquid crystal glass; a first step used for supporting the liquid crystal glass is arranged on the middle frame; the liquid crystal glass is fixed on the middle frame through the adhesive layer; and the protecting film is resisted against the middle frame. The embodiment of the invention also provides the assembling method for the screen module and the electronic device. According to the embodiment of the invention, the demand of the screen module on the liquid crystal glass is lower; the conventional liquid crystal glass is used; the manufacturing cost is lower; the problems of limited resource and adhering clearance are solved; the gluing break difference is reduced; and the product quality is promoted.

The invention relates to a reflective film, and specifically relates to a high-luminance diffusion silver-plated reflective film applied to a liquid crystal backlight source and a preparation method thereof. In order to improve the luminance of the reflective film in the existing backlight module and solve the problems of the existing backlight module such as LED lamp shadow and uneven luminance, the invention provides a high-luminance diffusion silver-plated reflective film and a preparation method thereof. The reflective film comprises, in sequence from bottom to top, a base layer, a silver-plated layer, an acrylate polymer layer, a protective layer, and a diffusion coating. The diffusion coating includes adhesive and diffusion particles. The diffusion particles are composed of large-diameter diffusion particles and small-diameter diffusion particles. The diffusion particles are glued onto the surface of the protective layer by the adhesive. By using the reflective film provided by the invention, the problem that the luminance of the traditional reflective film is inadequate is solved, the use of diffusion films is reduced, and the development towards a large, thin, light and low-cost flat-panel display can be satisfied.

The invention provides a multi-view stereoscopic display which includes a projection device array and a pair of cylindrical lens arrays, wherein the projection device array comprises a plurality of projectors, each projector comprises a light source array which is composed of a plurality of light sources, light rays generated by the plurality of light sources are projected to a partition visual area respectively through the plurality of projectors, and the pair of cylindrical lens arrays is arranged between the projection device array and the partition visual area, so that every position of the partition visual area can obtain part of the light rays projected by the light sources.

A solar spike lamp with long-lasting phosphor materials comprises a housing (1), the long-lasting phosphor materials (2), one or more LED light sources (3), a power storage element (4), a solar photovoltaic device (5), a control circuit board (6), optical elements (7), retroreflective materials (8) and package resin (9), wherein the control circuit board (6) intermittently supplies power to the one or more LED light sources (3) at a certain duty ratio or at a certain cycle. According to the solar spike lamp with the long-lasting phosphor materials, the stroboflash fluctuation depth is reduced by utilizing the long-lasting energy storage luminescence characteristic, and the power consumption of the power storage element (4) is reduced by reducing the duty ratio or lengthening the period; based on the principle, the novel all-weather solar spike lamp with stronger functions and higher safety and environmental protection property can be designed and manufactured, not only is the original function improved, but also the auxiliary illuminating lamp function is integrated under the condition of not increasing the power consumption, and thus the application range is expanded greatly.

The invention discloses a stereoscopic display optical grating and a manufacturing method of the stereoscopic display optical grating as well as a stereoscopic display device. The stereoscopic display optical grating comprises a transparent base, and a light transmitting region and a light shielding region which are arranged on the transparent base at interval, wherein the light transmitting region is internally provided with a metal strip-shaped optical grating for receiving polarized light emitted to the light transmitting region from a backlight module and selecting the polarized light; the light shielding region is internally provided with a black light shielding matrix and a metal light shielding optical grating, wherein the black light shielding matrix is used for absorbing polarized light which is reflected back into the light shielding region from a liquid crystal display unit; the metal light shielding optical grating is used for receiving the polarized light which is emitted to the light shielding region from the backlight module and reflecting the polarized light back to the backlight module, so as to emit the polarized light to the light transmitting region again. The problem in the prior art that the brightness loss is caused by the light shielding effect of the optical grating in an optical grating naked-eye stereoscopic display process is solved; meanwhile, an image crosstalk phenomenon is caused by metal lead wire reflection can be effectively prevented.

The invention relates to an electronic device, comprising a shell, a display panel and a backlight module. The shell is provided with at least an opening; the display panel is arranged on the shell and used for displaying; the backlight module is arranged inside the shell and used as the light source of the display panel; the backlight module is provided with at least a lumination component, a light guide plate and at least a light pipe, wherein, the light guide plate leads the light beam emitted by the lumination component to be guided into the display panel; the light pipe is provided with an optical input terminal and an optical output terminal; the optical input terminal is arranged at the opening of the shell so as to be exposed in the air; and the optical output terminal is arranged at the side edge of the light guide plate so as to lead the light pipe to guide the external environmental light to the light guide plate.

The invention discloses a partition backlight-based low-delay liquid crystal display device and a driving method thereof. The liquid crystal display device comprises a plurality of partition backlightwhich is distributed in an arrayed manner. The driving method comprises the following steps: S1. performing line-rank scanning to active arrays of a display screen, and acquiring the gray-level of picture of current pixel, to obtain gray-level picture matrix; S2. normalizing the gray-level picture matrix according to the electro-optical curve of the display device, to obtain displayed driving matrix; S3. dividing the displayed driving matrix into displaying partitions correspondingly one by one according to the partition backlight, and acquiring the position of the displaying partition wherethe current pixel is; and S4. Performing the gray-level distribution statistics of each displaying partition according to the position, where the current pixel is, of the displaying partition and thedisplayed driving matrix, calculating the lighting backlight coefficient of each displaying partition according to the gray-level distribution statistics of the displaying partition, and determining the displaying partition needing to be lightened according to the position where the current pixel is in the displaying partition and the position where the current displaying partition is in the displayed driving matrix.

An image display device of the present invention includes a subframe generation section (10) for dividing one frame of a video signal into a first subframe during which at least a green (G) light source emits light, a second subframe during which at least a red (R) light source emits light, and a third subframe during which a blue (B) light source emits light. The subframe generation section (10) finds a difference between (i) a signal to be displayed, which signal is obtained from an aperture ratio corrected in the first subframe and luminance distribution of a light source corresponding to a red (R) video signal included in the first subframe and (ii) the red (R) video signal included in the first subframe, and corrects, according to the difference found in the first subframe, an aperture ratio corrected in the second subframe. This prevents insufficiency of luminance, and thus makes it possible to carry out an accurate color display.

The invention provides a projection system. The projection system comprises a light source, a space light modulator, a light recycle system and a lens assembly, wherein the light source is used for emitting light of the light source and irradiating to the space light modulator, the space light modulator is used for modulating light irradiating on the space light modulator according to an image signal to form projection light and light outside the projection light, the light recycle system is used for receiving at least one part of the light outside the projection light and guiding the at least one part of the light outside the projection light to the space light modulator, and the lens assembly is used for receiving and emitting the projection light to form a projection image. By the projection system, the light outside the projection light can be effectively utilized.

The present invention relates to a thin film sensor, capacitive touch panel having the sensor and preparation method thereof and terminal product. The thin film sensor of the present invention has only one optically conductive substrate. Specifically, only one optically transparent substrate is used, a sensing electrode layer and a driving electrode layer are coated on the upper and lower surfaces of the substrate, respectively, which helps to reduce the thickness of the thin film sensor on one hand, thus contributes to the development of light and thin of a touch panel and touch electronics; on the other hand, the material selection and the preparation process are simple, the selection of two substrates is not necessary to prepare two optically conductive thin film.