107results about How to "Improve picture quality" patented technology

The invention discloses an array substrate, a manufacturing method thereof and a liquid crystal display. The array substrate comprises a substrate, wherein data wires and grid lines, which are arranged in a crisscross pattern for forming a plurality of pixel units, are formed in a pixel region of the substrate, each pixel unit comprises a switch element, a pixel electrode and a public electrode, and the public electrodes have narrow slots and are arranged in a whole-block pattern in the pixel region, wherein public electrode wires are further formed in the pixel region, and the public electrode wires are communicated with the public electrodes. The public electrode wires are formed in the pixel region of the array substrate of the liquid crystal display, the public electrode wires are communicated with the pubic electrodes, and the public electrode wires and the public electrodes can form a parallel-connected circuit, thereby reducing the resistance of the public electrodes, further reducing RC (resistance-capacitance) signal delay of the public electrodes, improving the load capacity of public voltage signals, further weakening the crosstalk phenomenon and improving the image quality of the liquid crystal display.

An organic light-emitting device includes a first transistor for applying a data voltage; a second transistor for applying a driving current depending on the data voltage and an initiation voltage to an organic light-emitting diode; a third transistor for generating a threshold voltage; a fourth transistor for applying an initiation voltage, the fourth transistor being connected to the third transistor; a fifth transistor for applying a power voltage; and a condenser provided between a first node connected to the third and fifth transistors and a second node connected to the first and second transistors, for maintaining the power voltage and the threshold voltage for compensation.

The invention relates to a double-camera module group, and the module group comprises a circuit board, a lens seat, two image sensors, two lens module groups, a liquid crystal lens, and a welding pin. The two lens module groups are disposed on the same lens seat, and the bottom surface of the lens seat is connected with the circuit board. Moreover, the top surface of the lens seat is provided with the liquid crystal lens, thereby enabling the liquid crystal lens to cover the two lens module groups. The welding pin in the lens seat can enable the liquid crystal lens to be electrically connected with the circuit board. During assembly, the focuses of the lens module groups are adjusted, and the liquid crystal lens is used for focusing during photographing. In other words, the circuit board supplies power to the liquid crystal lens through the welding pin. The path of light passing through the liquid crystal lens is correspondingly changed during different voltages, and the focusing function is achieved under the condition of no voice coil motor. Therefore, the module group can effectively prevent the magnetic interference between two voice coil motors, and improves the image quality. Moreover, the two lens module groups achieve the focusing function through the liquid crystal lens, so the module group can effectively solve a problem that the movement of the two lens module groups is not consistent, and improves the image quality.

The invention relates to a video coding method and device. The method comprises the following steps: acquiring a video frame; detecting a moving target in the video frame, and determining a region in which the moving target is positioned as a region-of-interest in the video frame; and coding the video frame in a coding way that the fidelity of the region-of-interest is higher than the fidelity of a non-region-of-interest after smooth filtering of the non-region-of-interest not belonging to the region-of-interest in the video frame to obtain video code streams. Through adoption of the video coding method and device, relatively high picture quality can be kept in the region in which the moving target is positioned even for a video with a complex scene, and occupation of network resources by the coded video code streams is lowered by lowering of the fidelity of the non-region-of-interest.

A recording head is provided with a plurality of nozzles for ejecting a fluid, a plurality of pressure-applied chambers arranged in a predetermined direction and each communicating with a corresponding one of the nozzles, and a common chamber having a plurality of wall surfaces and configured to supply the fluid to the pressure-applied chambers. At least one of the wall surfaces of the common chamber, along the predetermined direction, has a pressure absorbing surface with a rigidity lower than those of other wall surfaces and configured to absorb a pressure change, and the pressure absorbing surface is formed by a pressure absorbing member having a non-uniform thickness.

The present invention relates to a liquid crystal display and its drive method. Said liquid crystal display includes liquid crystal display panel, backlight module, dimming control unit and backlight module drive circuit. Said liquid crystal display panel has first display area and second display area. The backlight module includes several luminous elements, these luminous elements are respectively correspondent to the pixels of first display area and second display area. Said dimming control unit is used for producing at least a dimming control signal, and the dimming frequency of the dimming control signal is the multiple of picture refreshed frequency of the liquid crystal display panel. The backlight module drive circuit can be used for cyclically and successively driving luminous elements according to dimming control signal.

An encoding apparatus is disclosed which puts picture data into encoded data formed by a plurality of layers conforming to a predetermined standard by use of a hypothetical buffer, the encoding apparatus including: an analysis section configured to calculate an access unit occupancy of the hypothetical buffer for each of the layers in order to determine whether constraints on the hypothetical buffer are met; and an encoding section configured to put the picture data into encoded data in compliance with the predetermined standard on the basis of a result of the analysis; wherein, if the constraint in a second layer is considered to be met provided the constraint on the hypothetical buffer in a first layer is met, then the analysis section calculates the access unit occupancy only for the first layer in order to determine whether the constraints on the hypothetical buffer are met.

An organic light-emitting display device and a method for driving the same are provided. The organic light-emitting display device analyzes input image data in unit of a window mask to detect a halftone data block, adjusts a voltage corresponding to grayscale 0 of center data disposed at the center of the halftone data block to a voltage higher than 0V, and adjusts the voltage corresponding to grayscale 0 in a data block other than the halftone data block to 0V, such that a data voltage swing width at low grayscales can be reduced so as to prevent voltage drop in pixels, thereby improving picture quality.

The invention discloses a method and a device for switching a video stream. The method comprises the following specific steps: if the play request information of a video sent by a terminal is received, obtaining the video stream of the video, wherein the video comprises a video stream of a first picture group frame number and a video stream of a second picture group frame number, and the first picture group frame number is less than the second picture group frame number; sending the video stream of the first picture group frame number to the terminal, searching for a key frame in the video stream of the first picture group frame number, and extracting the decoding timestamp of the key frame; searching the video stream of the second picture group frame number to determine whether a frame with the same decoding timestamp exists; if the frame with the same decoding timestamp exists, further detecting whether the frame is the key frame; and if the frame is the key frame, sending the video stream of the second picture group frame number to the terminal. Through the way, low delay of video play is guaranteed, and the picture quality of the video is improved.

The invention discloses a video recording device. The video recording device comprises a camera module, a video processing module, a video encoding module and a video synthesis module, wherein the video processing module is used for acquiring a video image output by the camera module, transmitting the video image to the video encoding module, judging the scene type of the video image, determining a new frame rate code rate strategy, and regulating the frame rate set by the camera module and the code rate set by the video encoding module according to the new frame rate code rate strategy. The invention also discloses a video recording method which is implemented by utilizing the video recording device. By using the video recording device and the video recording method, the frame rate and the code rate can be regulated according to the difference between output video images.

An electronic imaging device includes a display unit and a barrier layer. The display unit includes scan lines for transferring select signals, data lines for transferring data signals corresponding to first and second images formed according to one or more input signals, and pixels connected with the scan and data lines. The barrier layer includes first barriers and second barriers corresponding to the first barriers. The first image is displayed during a first period of a unit period during which an image of a single frame is displayed. The second image is displayed during a second period different from the first period. The first barriers are driven according to the first image, the second barriers are driven according to the second image, and a region of the barrier layer corresponding to a mixed region in which the first and second images coexist is a non-transmission region.

In on embodiment of the present invention, an image displaying apparatus is disclosed which divides 1 frame into plural sub-frame periods, and modifies the image signals in the following manner in the case of receiving an image of a frame in which a region denoted by an image signal α or an image signal close to the image signal α and a region of another image signal β or an image signal close to the image signal β are adjacent to each other. Specifically, the image displaying apparatus carries out display, in at least one sub-frames period A, with a modified image signal so that the difference with the image signal of the other region becomes smaller, and in at least one other sub-frames period B, with a modified image signal so that the difference with the image signal of the other region becomes more significant, in the vicinity of the boundary between the region of the image signal α and the region of the image signal β. In this way, an embodiment of the present invention provides an effect of improvement in moving picture quality of a hold-type display device without causing a decrease in luminance or flicker.

A dynamic gain adjustment method and apparatus based on brightness are provided. The dynamic gain adjustment method and apparatus amplify or attenuate high frequency components of an input video signal by dynamically varying a gain that is applied to a peaking algorithm block for picture quality improvement in a video processing device, such as a digital television, based on an average picture level (APL) of the input video signal. The gain can be dynamically adjusted when the APL of the input video signal is high or low, and thus saturation of the video signal during the operation of the peaking block can be prevented.

The present invention provides a terminal screenshot method and terminal. The method comprises a step of obtaining an imaging instruction and controlling the first camera of the terminal to carry out video recording according to the imaging instruction, a step of monitoring whether the preset shooting condition of a second camera is reached or not while the first camera is controlled to carry out video recording, and controlling the second camera to carry out view finding and shooting by using the same view finding range of the first camera when the monitoring result is that the preset shooting condition of a second camera is reached and obtaining the screenshot image of the current recorded video of the camera. According to the scheme, while controlling the first camera to carry out video recording, whether the shooting condition of a second camera is reached or not is monitored, when the shooting condition is reached, the second camera is controlled to carry out shooting, the image same with that in the recorded video at that time is obtained as a screenshot image, and the problem of the poor quality of the image of the screenshot obtained in the video recording process in the prior art is solved.

The invention provides a video fill-in light method and apparatus. The method comprises the following steps: when carrying out a video chat by an intelligent device, judging whether a camera of the intelligent device requires fill-in light; and if judging that the camera requires the fill-in light, determining a fill-in light area and an image area on a display screen of the intelligent device, wherein the fill-in light area is used for carrying out fill-in light on the camera, the image area is used for displaying an image of the local end user and the image of an opposite end user, and the brightness of the fill-in light area is higher than that of the image area. Therefore, the image quality of the image of the local end user can be effectively improved without influencing the normal video call.

The invention discloses a liquid crystal display panel and a display device. In the liquid crystal display panel, a public electrode is divided into multiple sub public electrodes which are arranged side by side in the extending direction of a grid line, and as a result, compared with an existing liquid crystal display panel, the liquid crystal display panel has the advantage that different public electrode signals can be applied to all the sub public electrodes. According to the liquid crystal display panel, the voltage of each public electrode signal applied to the corresponding sub public electrode becomes larger gradually in the transmission direction of a grid signal on the grid line, as a result, the problem of inconsistency of the voltage deviation delta VP of all pixel electrodes of the whole liquid crystal display panel due to delay of resistance and capacitance is solved through compensation of the voltage of the sub public electrodes, the problems such as image flicker caused by the inconsistency of the voltage deviation delta VP are eliminated, and the image quality of the liquid crystal display panel is improved.

An embodiment of the invention provides a laser projection picture brightness adjusting method and device. The method comprises the following steps: obtaining a first brightness value for displaying light beam of a picture to be displayed, wherein the picture to be displayed is any picture displayed in a laser projection screen; judging whether the first brightness value is larger than a preset threshold value; if so, turning off a laser; and if not, obtaining a gray-scale value of the picture to be displayed and a second brightness value matched with the gray-scale value, and adjusting the brightness of the light beam of a light source according to the first brightness value and the second brightness value to enable the brightness value for displaying the light beam of the picture to be displayed to be equal to the second brightness value. The adjusting method and device are used for adjusting the brightness of the picture displayed on the laser projection screen in time.

A scan driver selects first four rows of pixels at a time and then sequentially selects second four rows of pixels for each row in double gate driving. A data driver supplies a tone voltage corresponding to black data to the first four row of pixels at a time and then sequentially supplies a tone voltage corresponding to display data to the second four rows of pixels.

The invention discloses a backlight module and a display device, so that the side bright line of the backlight module is reduced, and the image quality of the backlight module is improved. The backlight module comprises a rubber frame and a light guide plate arranged in the rubber frame, wherein avoiding structures are respectively arranged on the sides, close to the incident light side, of two non-incident light sides parallel to the rubber frame; the side, away from the end face of the light guide plate, of each avoiding structure is closed through a surface sealing structure. The avoiding structures provide larger gaps between the end face of the light guide plate and the surface sealing structures, so that the optical path of the light radiated out from the end face of the light guide plate can be increased, a part of light radiated out from the end face of the light guide plate is absorbed by the surface sealing structures, the other part of light enters into the light guide plate again after being reflected by the surface sealing structures, and the distance of the light entering into the light guide plate again from the position where the light is radiated out from the upper surface of the light guide plate to the side of the rubber frame is longer, so that the scheme can effectively reduce the side bright line of the backlight module and improve the image quality of the backlight module.

The invention provides a pixel structure and a display device. The pixel structure comprises a plurality of pixel units. Each pixel unit comprises a first sub pixel with a first color, a second sub pixel with a second color and a third sub pixel with a third color, wherein the first sub pixel is provided with a first adjacent side with a first length and a second adjacent side with a second length, the second sub pixel is provided with a first adjacent side with the first length and a second adjacent side with a third length, and the third sub pixel is provided with a first adjacent side with the second length and a second adjacent side with the third length. According to each pixel unit, the first adjacent side of the first sub pixel is adjacent to the first adjacent side of the second sub pixel, the second adjacent side of the first sub pixel is adjacent to the first adjacent side of the third sub pixel, and the second adjacent side of the second sub pixel is adjacent to the second adjacent side of the third sub pixel. According to the pixel structure and the display device, due to the fact that the adjacent sides are arranged between every two adjacent sub pixels, the light blending effect between the sub pixels inside each pixel unit is improved, and the image quality of a display frame is improved.

The invention provides a wafer scale micrometer-nanometer scale semiconductor LED display screen and a preparation method thereof, and relates to semiconductor photoelectric devices. 3x sets of micrometer-nanometer sized elements are etched on a first semiconductor layer of a first conduction type, included angles exist between surfaces of each element and a c surface, a r surface and an m surface, and the three sets of surface included angles are controlled to control emission wavelengths of three sets of active layer In<x>Ga<1-x>N/GaN multiple quantum wells to be arbitrary wavelengths of red green blue RGB wave bands. Red green blue RGB modules of RGB arbitrary permutation combination and arbitrary wave band combination can be made on the same wafer, contact electrodes are made through the first semiconductor and connected with an integrated circuit control panel, on-off and power of the RGB elements can be independently controlled, and the wafer scale high-definition semiconductor LED display screen having a micrometer-nanometer pixel resolution is made.

According to one embodiment, a transmission processing unit transmits, to a subject via the ultrasonic probe, ultrasonic waves corresponding to a Doppler mode and remaining modes. A reception processing unit receives the ultrasonic wave reflected by the subject via the ultrasonic probe as an echo signal. An ultrasonic image generation unit generates images in the Doppler mode and the remaining modes based on the echo signal. A control unit changes a ratio of transmission of the ultrasonic wave corresponding to the Doppler mode to transmission of the ultrasonic waves corresponding to the remaining modes in accordance with a degree of a pulsatory of the subject.

An apparatus for driving a liquid crystal display device includes a liquid crystal display panel; a plurality of data ICs supplying data voltages to the liquid crystal display panel; a plurality of gate ICs supplying a gate signal to the liquid crystal display panel; and a common voltage generating unit that generates a common voltage to drive the liquid crystal display panel with a difference between the common voltage and the at least one of the data voltages, the common voltage depending on at least one of the data voltages.

An organic light emitting display, and a method of driving the same, including a pixel unit having pixels to display images and a brightness controller to restrict the brightness of the pixel unit. The brightness controller generates frame data by summing the video data in one frame so that the brightness of the pixel unit is restricted when the value of the frame data is no less than a predetermined value and so that the brightness of the pixel unit is not restricted when the value of the frame data is no more than a predetermined value.

A frame rate converter is provided, and includes a motion vector calculator which calculates a motion vector; a motion error calculator which calculates a motion error level of the motion vector; an interpolation frame output part which generates a repetition interpolation frame, which corresponds to the current frame or the previous frame, and a motion interpolation frame based on the motion vector; and a controller which calculates a frame selection value larger than a preset reference selection value by more than a first level when the motion error level is larger than a reference error level, and calculates a frame selection value smaller than the previous frame selection value by a second level, which is smaller than the first level, when the motion error level is smaller than the reference error level, and controls the interpolation frame output part to output the repetition interpolation frame or the motion interpolation frame based on the calculated frame selection value.

Disclosed is an apparatus and method for image conversion and automatic error correction for a digital television receiver (TV) which can improve the picture quality by converting an image signal for a TV or PC that displays an image having an RGB format into an image signal of YPbPr for the digital TV and automatically correcting an error produced in the received image signal. The apparatus includes an image receiving and converting section for converting an image receiving and converting section for converting received RGB image data into image data of a digital TV format and rearranging parity bits and error information bits produced from the converted image data to form one image signal, a storage and image providing section for receiving the image signal from the image receiving and converting section, storing the image signal in a memory bank and providing the image signal so as to detect and correct an error produced in the image signal, and an error correcting and outputting section for receiving the image signal from the storage and image providing section, correcting the error by computing the parity bits and the error information bits from the original image data of the image signal, and interpolating the image to match a 16:9 aspect ratio for the digital TV.

The invention relates to a method for processing video data to be displayed on a display device having a plurality of luminous elements corresponding to the pixels of a video picture, wherein an error diffusion step is applied to at least a part of said video data to refine the grey scale portrayal of said video picture, said error diffusion step comprising, for each current pixel of said part of video picture, a step of truncating the value of the corresponding video data and a step of diffusing the truncation error to at least one neighboring pixel. According to the invention, a noise is inserted on the error before and/or after its diffusion to the neighbouring cells. Owing to this principle no static pattern should be visible, improving the overall picture quality.

The embodiment of the invention provides a heat curing agent and a preparation method of the heat curing agent, a frame sealing adhesive, a display panel and a display device, relating to the field of display technology, aiming at reducing the pollution of the heat curing agent for liquid crystal in the frame sealing adhesive in a box technology, and improving the picture quality of a liquid crystal display (LCD) device. The preparation method of the heat curing agent comprises the steps of: mixing 3, 5-dimethylaniline and epoxy resin; and leading the mixed 3, 5-dimethylaniline and the epoxy resin to be subjected to combination reaction within the preset temperature range to obtain the heat curing agent. The invention is used for manufacturing the display device.

A liquid crystal display device includes multiple sub-pixels arranged along a row direction and a column direction as a matrix and multiple data lines disposed along the column direction. Each data line is used for applying a data signal to a corresponding column of the sub-pixels. Each row of the sub-pixels includes even-number sub-pixels having different colors arranged periodically. When a pure color picture frame is displayed, and in even-number arrangement cycles formed by adjacently disposing sub-pixels having different colors along the row direction, for the sub-pixels having a same color, the number of the sub-pixels being applied with a positive polarity and the number of the sub-pixels being applied with a negative polarity are the same. The present invention can avoid generating a common electrode coupling signal because of a transient change of the data signals, and eliminate the flick phenomenon to improve the display quality.

The invention discloses a display device driving method and a display device. The display device comprises a grid driver and a source electrode driver. Scanning lines are sequentially unpacked one by one from scanning signals output by the grid driver, and the scanning lines in set number correspond to a frame picture. When the scanning lines are unpacked, data signals output from the source electrode driver are input into pixel units of the scanning lines through a data line, and a coupling capacitor is arranged between the data line and a public electrode. The display device driving method includes inputting set data signals into the data line for offsetting coupling action of the data line to the public electrode during unpacking the scanning line corresponding to the frame picture at the field blanking time before unpacking the first scanning line corresponding to one frame picture. Accordingly, the public electrode can be driven in a manner of fluctuation complementing with the data signals of the frame picture during unfolding the frame picture, and voltage of the public electrode is stabilized and stability of the picture is improved.