39results about How to "Avoid bright spots" patented technology

The invention discloses a multi-line scanning high-refresh-rate full-color LED driving chip and a driving method, and belongs to the field of full-color LED driving chip design. The multi-line scanning high-refresh-rate full-color LED driving chip comprises a synchronous controller, a shift register, a state register, an SRAM buffer, a gray clock generation module, a driving module, a pre-charging circuit and an analog output module. The gray scale clock generation module is used for carrying out frequency multiplication/frequency division processing on the data clock signal DCLK according to the instruction information so as to generate a gray scale clock signal GCLK for controlling the gray scale. The driving module is used for counting the gray scale clock signal GCLK to obtain gray scale counting corresponding to each row of pixel data, and generating an output waveform of a PWM signal corresponding to each row of pixel data by using N continuous rows of pixel data and the corresponding gray scale counting in each scanning process, so that multi-row scanning is realized. The analog output module is used for receiving the PWM signal and generating constant current to drive the LED lamp bead in cooperation with the pre-charging circuit. According to the chip, the refresh rate can be improved, and more scanning lines can be supported.

The invention provides a plasma processing unit, wherein the upper plate electrode comprises a gas demarcation strip and an insulating cover plate covered on the top of the gas demarcation strip, and plurality of mounting portions for mounting the gas demarcation strip and the insulating cover board, each mounting portion includes a screw and a nut. The invention can eliminate product defects and increase quality ratio.

The invention discloses a high-speed scanner which comprises a transparent flatbed used for placing files to be scanned and a pressing plate used for pressing the files to be scanned and arranged above the transparent flatbed. The high-speed scanner is characterized in that a cavity for light to pass is arranged below the transparent flatbed, and the side wall of the bottom of the cavity is provided with a digital camera body used for imaging once. The high-speed scanner has simple structure and high scanning speed; especially in color scanning, the scanning speed of the high-speed scanner is tens of times higher than a traditional flat scanner.

The present invention relates to an active component array baseplate, including a baseplate, several scanning lines, several data lines and several pixel units, in which several scanning lines, several data lines and several pixel units are set on the baseplate, every pixel unit is electrically-connected with correspondent scanning line and data line. Besides, at least partial pixel unit includes several active components and a pixel electrode. The active component is electrically-connected with correspondent scanning line and data line respectively, and the pixel electrode is electrically-connected with one active component of them, every pixel unit has several active components.

The invention provides a plasma processing unit, wherein the upper plate electrode comprises an insulating cover plate and a supporting frame mounted on the bottom of the insulating cover plate to support the insulating cover plate, it also has a hole, and gas demarcation strip constructed through insulating material. The unit is mounted in the hole for supporting the frame. The invention can eliminate product defects and increase quality ratio.

The invention provides a knob light guide structure comprising a PCB, at least one LED light source, an encoder with a shaft handle and a shaft sleeve, a first light guide ring and a second light guide ring. The encoder and the LED light source are arranged on the PCB; the first light guide ring sleeves the shaft sleeve of the encoder; the light guide ring comprises an oval light guide arm and a light guide inner ring with a chamber; the edge of the light guide arm is provided with U-type, V-type and other grooves which are arranged on one side of the LED light source and which are used for receiving the light emitted by the LED light source; the light guide inner ring with the chamber is used for reducing LED light transmission loss during transmission; the second light guide ring is arranged above the first light guide ring and is used for performing the secondary light guidance of the LED light. One single LED light source can be adopted, the light source utilizing efficiency is high, and the light is transmitted evenly.

The invention relates to the technical field of color selectors and particularly relates to a combined type light-transmitting roller assembly. The combined type light-transmitting roller assembly comprises a cylindrical light-transmitting roller; the light-transmitting roller is connected with a driving unit by a roller bracket; a barrel cavity of the light-transmitting roller is fixedly connected with the color selector by a fixed bracket; a light source unit, a background unit, and a separation plate arranged between the light source unit and the background unit are arranged on the fixed bracket; and the separation plate is used for separating light sent by the light source unit and refracting the light to the background unit by the light-transmitting roller. The light source unit and the background unit are arranged in the light-transmitting roller so that the light-transmitting roller can be conveniently cleaned, and the work stability of the light source unit and the background unit is guaranteed; and meanwhile, the separation plate is arranged, so that a phenomenon that a bright point is generated in the background unit due to the light reflection of the light-transmitting roller is avoided.

The invention provides a backlight module and a display device; the backlight module comprises a light guide plate and a light-emitting unit; the light guide plate has at least one incident side and an emergent side connected with the incident side; the light-emitting unit has a substrate, at least one light-emitting device and a light exiting side, the light-emitting devices are disposed on the substrate, and light source is provided for the light-emitting devices by the light exiting side and enters the light guide plate from the incident side out of the light exiting side, wherein the incident side has a first inclination angle to a direction perpendicular to the light exiting side, the light exiting side has a second inclination angle to the direction, and the first inclination angle and the second inclination angle are identical in nature.

The invention discloses an array substrate and a display panel. The array substrate comprises a plurality of scanning lines, a plurality of data lines and a plurality of sub-pixel units; each sub-pixel unit comprises a thin film transistor and a pixel electrode, and each thin film transistor comprises a grid electrode connected with the corresponding scanning line, a source electrode connected with the corresponding data line and a drain electrode connected with the corresponding pixel electrode; and in the direction parallel to the plane of the array substrate, the source electrode comprises two branch parts located in the sub-pixel units, the drain electrode is connected with the pixel electrode through a connecting hole, and the drain electrode and the connecting hole are arranged in the range defined by the two branch parts. According to the invention, the drain electrode and the connecting hole are arranged in the range defined by the two branch parts of the source electrode, so that the area occupied by the drain electrode is reduced, and the problem of bright spots or poor vertical line shape of a display panel caused by short circuit of the drain electrode and the data lines is avoided.

The invention discloses an automobile ornament nickel plating treatment device. The automobile ornament nickel plating treatment device comprises a lifting frame, wherein an air inlet pipe is fixedlyinserted into one side of the lifting frame, one end of the air inlet pipe is connected with a treatment plate, a cavity is formed in the treatment plate, a sealing mechanism is arranged in the treatment plate, a pneumatic pump is fixed at the top of the lifting frame, the top of the sealing mechanism penetrates through the lifting frame and is connected with the pneumatic pump, air holes are formed in one side of the treatment plate, filtering holes are formed in the bottom surface of the treatment plate, a hanging frame is fixed on one side of the lifting frame, and a nickel plating pool isarranged on one side of the lifting frame. The automobile ornament nickel plating treatment method comprises the following steps of S1, drying pretreatment; S2, moving into the pool; and S3, nickel plating. According to the automobile ornament nickel plating treatment device, hot air is guided into the treatment plate through the air inlet pipe and then is sprayed out from the air holes, in the lifting process of the lifting frame, the sprayed hot air can be used for air drying of a hanging tool on the hanging frame, so that pollution of residual water stains on ornaments and the hanging toolto the nickel plating pool is effectively avoided.

The car lamp comprises a light-emitting assembly, an outer lampshade, an inner lampshade and a reflecting cover, a circle of light-permeable decorative ring is arranged on the inner lampshade, the inner lampshade is not light-permeable except the decorative ring, the light-emitting assembly comprises a light condenser and an LED light source, a circuit board is arranged at the bottom of the inner side of a lamp shell, the light condenser is arranged above the circuit board, and the reflecting cover is arranged on the outer lampshade. The condenser comprises a light-proof pattern-free part and a plurality of light-transmitting pattern parts, an LED light source is arranged below each light-transmitting pattern part, a plurality of conical light passing openings are formed in the side, close to the reflecting cover, of the condenser, the taper angle of each conical light passing opening is correspondingly arranged above the corresponding LED light source, the side wall of each conical light passing opening is coated with a light-proof material, and the light-proof material is coated on the side wall of the corresponding LED light source. Illumination areas irradiated by the LED light sources on the reflecting cover are matched with each other, are distributed on the reflecting surface and do not interfere with each other. According to the car lamp capable of preventing LED light channeling, the condenser structure is additionally arranged, so that light rays can reach the corresponding reflecting surfaces to be reflected and cannot be transmitted to the adjacent reflecting surfaces to form bright spots.