98results about How to "Uniform emission" patented technology

A phototherapy bandage capable of providing radiation to a localized area of a patient for accelerating wound healing and pain relief, photodynamic therapy, and for aesthetic applications. The phototherapy bandage may include a flexible light source that is continuous across the bandage for providing a selected light, such as a visible light, a near-infrared light, or other light, having substantially similar intensity across the bandage. The bandage may also be flexible and capable of being attached to a patient without interfering with the patient's daily routine. The phototherapy bandage may easily conform to the curves of a patient and may come in a variety of exterior shapes and sizes.

A light guide plate has a light-receiving surface, a light-emitting surface, and a light-reflecting surface. Multiple first arc-shaped longitudinal structures are arranged on the light-receiving surface with their longitudinal directions being substantially parallel with each other. Multiple second arc-shaped longitudinal structures are arranged on the light-emitting surface with their longitudinal directions being substantially parallel with each other. The light-reflecting surface is shaped to form a plurality of prismatic structures, and a luminance-adjusting structure is formed on part of the light-reflecting surface near the point light source and interlaced with the prismatic structures.

A uniform surface light source which is formed by assembly belongs to the technical field of packaging and application of light-emitting diodes. The uniform surface light source is characterized in that the uniform surface light source is formed by horizontally assembling a plurality of light-emitting diode-based surface light source modules, and each surface light source module comprises a light-emitting diode light source and a uniform light-collimation optical mechanism which leads light emitted by the light-emitting diode light source to generate similar uniform illumination on an emergent plane after the refraction and/or reflection and leads the emergent direction to be parallel to the central axis of the light. The collimation mechanism is a collimation panel, the center thereof is a convex lens, the periphery is a group of prisms with cross sections which are congruent triangles, and the projections of the prisms on an orthogonal plane of the central axis are a group of concentric circles. The uniform surface light source can obtain good uniformity of emergent light under the premise of ensuring high efficiency, thereby having broad prospects in backlight sources of liquid crystal display devices which are arranged in personal computers, vehicle navigation systems, handheld telephones and other devices, lamps for ordinary indoor lighting and other application aspects.

The embodiment of the invention discloses a backlight module and a liquid crystal display device, which relate to the field of the liquid crystal display, and can effectively reduce the overall weight of the liquid crystal display device. The backlight module comprises a rear panel and a light source which is arranged on one side of the rear panel, and the backlight module also comprises a reflection sheet which is arranged on the rear panel and an optical membrane material which is arranged above the reflection sheet, an optical cavity is formed between the reflection sheet and the optical membrane material, the reflection sheet is provided with a plurality of micro structure projections, and the distribution density of the micro structure projections on the reflection sheet is gradually reduced along the direction of the light source.

The invention discloses a light field modulation layer, a backlight structure and a display device. The energy and direction of light emitted from the light field modulation layer can be uniformly distributed, the thickness of the backlight structure is reduced, the number of LED used in the backlight structure is reduced, and the cost is lowered. The light field modulation comprises a waveguide layer and a grating structure, the waveguide layer is provided with a first surface and a second surface which are oppositely arranged, the grating structure is arranged on the first surface or the second surface of the waveguide layer, the grating structure is used for guiding the incident light on the grating structure into the waveguide layer and conducts total reflection propagation in the waveguide layer.

An object of the present invention is to provide electron emission devices having improved electron convergence.

To this end, an electron emission device of the present invention is such that a cathode electrode, an insulating layer, and a gate electrode are layered on a substrate in an order; an electron emission layer is in a first hole on the substrate penetrating from the gate electrode through the cathode electrode; an upper surface of the electron emission layer is between an upper surface of the substrate and a boundary between the cathode electrode and the insulating layer; at least one of a side surface and a lower surface except for a central area of the electron emission layer contacts the cathode electrode.

By such an electron emission device, electrons are emitted mainly from the peripheral area of the electron emission layer. Accordingly, the electron convergence is improved.

The invention discloses an LED-based intelligent color assessment cabinet. A combination of an LED light source and a tungsten lamp is used as a light source for color assessment lighting, and the color assessment light source more excellent in coloring characteristic is obtained by means of combination of spectral power distribution characteristics of the LED light source and the tungsten lamp; since a color filter is arranged in front of the tungsten lamp, more optimized spectral power distribution is obtained to further optimize the coloring characteristics of the color assessment light source. By the aid of light-emitting relative spectral powder distribution data, prestored in a memory unit under drive of different currents or pulse widths, of the LED light source or the tungsten lamp, all types of standard lighting sources can be simulated more accurately, and color assessment realness and reliability are improved.

A transfer material comprises a temporary support and an electroluminescent element layer, and positioned between said temporary support and said electroluminescent element layer. Using the above transfer material, an organic electroluminescent device is produced by a method comprising the steps of superposing the transfer material on an electrode layer side of a substrate has partially or wholly transparent or opaque electrode layer, contacting the transfer material and the substrate, and transferring at least one electroluminescent element to the electrode layer side of a substrate with at least one heating means and pressing means.

An electron-emitting device manufacturing method comprising a gas removal step of removing a gas dissolved in a liquid containing a formation material of an electroconductive film in which an electron emitting area is to be formed, a temperature adjusting step of adjusting a temperature of the liquid from which the gas is removed, and a droplet discharge step of discharging droplets of which the temperature is adjusted by droplet discharge means in an ink jet manner, while controlling relative positions of the droplet discharge means and a substrate on which the electroconductive film in which the electron-emitting area is to be formed is formed. The droplets are thereby applied to a predetermined position on the substrate.

The invention provides a direct type backlight module and a display device. The direct type backlight module includes a light distribution board, a reflective sheet forming a cavity with the light distribution board, and a backlight source positioned in the cavity; the light distribution board includes reflective regions and light-transmitting regions except for the reflective regions; and the reflective regions have reflective materials. The direct type backlight module and the display device can evenly emit light from a light-going surface, the strength of the light distribution board is high, the reflective materials can be arranged on the light distribution board, the technical process is simple, and the cost is low.

The invention provides a direct-type backlight module. The direct-type backlight module comprises a light guide plate, the light guide plate comprises a light-in surface which is adjacent to an LED lamp and a light-out surface which is opposite to the light-in surface, a conical groove which corresponds to the LED lamp is formed in the light-in surface of the light guide plate, and an inverted conical groove which corresponds to the conical groove is formed in the light-out surface; through the cooperation effect of the grooves in the two surfaces, even emergence of light rays which are givenout by the LED lamp is achieved. Compared with the prior art, the direct-type backlight module has the advantages that a lens does not need to be arranged on the LED lamp, the light mixing distance isnot needed, and even emergence of the light rays of a light source can be achieved; accordingly, under the situation that sufficient light mixing is guaranteed, the thickness of the direct-type backlight module is reduced in the vertical direction, and the thin-type design of the direct-type backlight module is facilitated.

The invention discloses an assembled uniform surface light source, belonging to the packing technique of light-emitting diode. It is characterized in that: it is a surface light source formed by assembling several surface light source modules that based on light-emitting diode. Wherein, each surface light source module comprises light-emitting diode light source, and a light-average collimate optical device which can make the light of light-emitting diode light source, via reflect and/or refract to generate uniform luminance on the emit plane while the emit direction is parallel with the middle axis of light. The invention can attain better light uniformity with high efficiency, while it can be used as a back light source in the personal computer, vehicle navigation system, etc.

The invention relates to an optical module and a liquid crystal display device formed by the same. The optical module comprises a first base material layer, a second base material layer and an optical fiber layer arranged between the first base material layer and the second base material layer, wherein the optical fiber layer comprises a single layer of multiple optical fibers which are closely arranged, at least one of the surface of the first base material layer and the surface of the second base material layer is provided with multiple adhesive points which make contact with the optical fibers, and the contact points on which the adhesive points make contact with the optical fibers destroy the total reflection happening in the optical fibers. In this way, by means of the optical module and the liquid crystal display device using the same, high color gamut display can be achieved.

The invention relates to a semiconductor laser device medical module capable of emitting uniform light spots and application of the semiconductor laser device medical module. The semiconductor laser device medical module comprises a semiconductor laser device, a laser device cooling fin, an aperture diaphragm, a collimating lens, a lens cone, a light spot homogenization device and a glass window, wherein the semiconductor laser device is arranged on the laser device cooling fin; the aperture diaphragm, the collimating lens, the light spot homogenization device and the glass window are sequentially arranged in a direction of emitting laser beams by the semiconductor laser device in parallel; the semiconductor laser device, the laser device cooling fin, the aperture diaphragm, the collimating lens, the light spot homogenization device and the glass window are fixedly arranged in the lens cone. According to the semiconductor laser device medical module capable of emitting the uniform light spots, the light spot homogenization effect is relatively good after the laser beams are emitted by a plurality of combined manner and the effect is relatively obvious; particularly, the use effect in the medical field is improved.

A ferroelectric multi-layered emitter used in a semiconductor lithography process includes a lower electrode, a ferroelectric layer, having a top surface with two end portions, which overlies the lower electrode, an insertion electrode formed on a region excluding the two end portions of the top surface of the ferroelectric layer, a dielectric layer, having sides and a top surface with two end portions, which has a predetermined pattern and is formed along the top surface of the ferroelectric layer and the insertion electrode, and a dummy upper electrode formed on a side of the dielectric layer opposite the ferroelectric layer. The ferroelectric emitter of the present invention guarantees uniform electron emission from wide and narrow gaps of a mask layer and in an isolated pattern such as a doughnut shape for ferroelectric switching emission lithography.

An organic light-emitting diode (1), comprising a layer stack (2) for emitting electromagnetic radiation (6). An electrically conductive first connection layer (4) is arranged on a first surface of the layer stack (2) and an electrically conductive second connection layer (5) at least predominantly transparent to a characteristic wavelength of the emittable electromagnetic radiation (6) is arranged on a second surface of the layer stack (2). The organic light-emitting diode is characterized by a conductive contact structure (7) arranged on the opposite side of the first connection layer (4) from the layer stack, which contact structure is connected electrically to the second connection layer (5) in the region of a plurality of openings (12) in the first connection layer (4). Also disclosed is a contact arrangement (15) for a two-dimensional, optically active element and to a method of producing organic light-emitting diodes (1).

The present invention provides a light diffuser plate, a surface emission light source apparatus and a liquid crystal display apparatus which are capable of preventing the generation of annoying noise in an area of contact between the light diffuser plate and a lamp box. The present invention relates to a surface emission light source apparatus comprising a plurality of light sources disposed at a distance from each other in a lamp box, that is made of a resin and has an open front side, and a light diffuser plate that is made of a resin and is disposed on the front side of the frame of the lamp box so as to close the opening of the lamp box, wherein at least a part of the back surface of the light diffuser plate that makes contact with the front surface of the frame is formed as a matted surface, the matted surface has an arithmetic mean surface roughness Ra in a range from 0.8 to 15 mum and a mean surface irregularity interval Rsm in a range from 100 to 300 mum.

A field emission display. Gate electrodes are formed in a predetermined pattern on a first substrate. An insulation layer is formed on the first substrate covering the gate electrodes. Cathode electrodes are formed in a predetermined pattern on the insulation layer. Emitters are provided electrically contacting the cathode electrodes. A second substrate is provided opposing the first substrate with a predetermined gap therebetween. The first substrate and the second substrate form a vacuum container. An anode electrode is formed on a surface of the second substrate opposing the first substrate. Phosphor layers are formed in a predetermined pattern on the anode electrode. Portions of the cathode electrodes are removed to form emitter-receiving sections. Fences are formed between the emitter-receiving sections, one of the emitters being provided in each of the emitter-receiving sections electrically contacting the cathode electrodes.

A back light module relates to two light guide plates to be in opposite way, forming each of two light guide plates by a light incoming surface and a light outgoing surface, arranging a numbers of lamp tubes between said light incoming surfaces, setting a numbers of the first ledge sets on said light incoming surfaces separately at region facing to lamp tube in interval way, arranging the second ledge between adjacent first ledge sets and setting region in facing to the first ledge set on light outgoing surface to be concave surface. The method for preparing said light guide plate is also disclosed.