57results about How to "Increased maximum brightness" patented technology

A method and apparatus is provided for reducing colour shift in relation to viewing angle in an LCD. The method includes receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel colour components having respective data values; for each of the pixel data, comparing the sub-pixel colour component data values included therein; and based on the comparison, modifying the sub-pixel colour component data values included in the pixel data to reduce colour shift when displayed on the LCD.

The invention provides a dibenzo-heterocyclic spirobifluorene compound having a structure shown in formula I, wherein X refers to O or S, and Ar refers to substituent shown in formula II or formula III. The compound serving as a main material of an organic electrophosphorescent device is good in stability and high in luminescent intensity and current efficiency. The invention further provides a preparation method of the compound shown in the formula I and the organic electrophosphorescent device comprising the compound shown in the formula I.

An image processing apparatus for minimizing a collective amount of power consumed by a plurality of display apparatuses of a multi-screen system to display an image of the multi-screen system, and for optimizing hue and luminance of the image of the multi-screen system.

The invention relates to a semiconductor device, concretely, provides a display apparatus which includes: a light emitting element, a source which supplies a current to the light emitting element from a drain; a capacitor one end of which is connected to a gate of the transistor; a gate voltage setting circuit detachably connected to the gate of the transistor, the gate voltage setting circuit setting the gate voltage of the transistor to an initial voltage; and a capacitor terminal voltage setting circuit which is connected to another end of the capacitor, and which sets the voltage of the another end of the capacitor to any of data voltage corresponding to image information and constant reference voltage which does not depend on the image information, wherein a range, in which a current flowing through the light emitting element varies depending on the data voltage, is adjusted by changing one of the initial voltage and the reference voltage.

A method and apparatus is provided for reducing colour shift in relation to viewing angle in an LCD. The method includes receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel colour components having respective data values; for each of the pixel data, comparing the sub-pixel colour component data values included therein; and based on the comparison, modifying the sub-pixel colour component data values included in the pixel data with respect to two or more of the plurality of sub-pixel colour components to reduce colour shift when displayed on the LCD.

A maximum brightness limiting mechanism limits the maximum brightness of the display to a brightness selected by a brightness selecting mechanism. If a user operates the brightness-increasing operating member a number of times in a unit time equal to or larger than a predetermined number of times when the brightness of the display is a second brightness, a particular operation detecting mechanism detects this operation as a particular operation. Upon this detection, the brightness selecting mechanism changes the selected brightness from the second brightness to a first brightness.

The invention relates to a color sequence type display and a light source control method thereof, wherein the light source control method comprises the following steps: receiving frame data in a frame period, wherein the frame period comprises multiple color sub-frame periods; carrying out data analysis according to the frame data to obtain the gray scale distribution of multiple colors in the frame data; and determining to open a part of or all the multiple color light sources of the color sequence type display in the frame period, wherein the light emitting time of the opened color light sources is larger than that of any one in the color sub-frame periods. Thus, the display brightness of the color sequence type display can be improved.

A drive circuit of a light source comprises a gray scale recognition unit, a parameter optimization module, a parameter calculation unit, a light-regulation control unit ad a drive unit. The gray scale recognition unit is used for capturing the maximal gray scale values individually corresponding to a plurality of data blocks in image data. The parameter optimization module generates an optimized period value according to the ratio of a standard current value to a specific current value. The parameter calculation unit obtains a specific value according to the optimized period value and the maximal gray scale values of the image and multiplies the maximal gray scale values of the data blocks by the specific value respectively to obtain a plurality of working period values. The light-regulation control unit generates a plurality of light-regulation control signals according to the working period values and the specific current value. Thus, the drive unit generates a plurality of drive pulse waves according to the light-regulation control signals.

A capacitor structure comprises the following: first conductive layer and first insulation layer orderly located on the base plate; second conductive layer located on the first insulation layer; the second insulation layer located on second conductive layer and first insulation layer; third conductive layer located on the second insulation layer; third insulation layer located on third conductive layer and second insulation layer; the fourth conductive located on the third insulation layer. The third and fourth conductive layers are separately electrically connected with the first and second conductive layers through at least first contact hole neat the second conductive layer and at least one second contact hole.

The invention relates to a pixel unit, a driving method of the pixel unit, a driving module of the pixel unit, a display panel and a display device. The pixel unit includes four sub-pixels and a first color filter, a second color filter, a third color filter and a fourth color filter corresponding to the four sub-pixels respectively, the first color filter allows only light of a first color to pass through, the second color filter allows only light of a second color to pass through, the third color filter allows only light of a third color to pass through, and the fourth color filter allows light of n different colors selected from the first color, the second color, and the third color to pass through, wherein n is larger than or equal to 2.

A head-up display for a vehicle, the head-up display including a picture generating unit arranged to generate a picture on a light receiving surface; and an optical system arranged to image the picture, where the optical system includes an input arranged to receive light of the picture; an output arranged to output light forming an image of the picture; a first mirror and second mirror arranged to guide light from the input to the output along an optical path, where the optical path includes a first optical path from the input to the second mirror including a transmission through the first mirror; and second optical path from the second mirror to the output including a reflection off the first mirror.

A smooth intermediate film layer having a thickness of 0.2 to 30 nm, little protrusions and a surface layer having high adhesiveness with the light-emitting layer is provided with accuracy on an anode constituting an organic electroluminescent device comprising a light-emitting compound layer present between an anode and a cathode. After the intermediate film layer is formed on the anode surface using a dry processing method by radio frequency plasma treatment or a wet processing method by a spin coating method and the like, preferably it is subjected to optimization treatment (washing) to adjust the smoothness, adhesiveness and thickness of the film. When the wet processing method is used, a surface treatment of the anode is preferably to be performed furthermore before forming the film to control the smoothness and surface conditions. Performing the treatment before and after forming the intermediate layer enables to control the thickness, smoothness and adhesiveness of the film and to obtain an organic electroluminescent device having high emission efficiency and long device life.

The invention provides a pixel circuit and a driving method thereof, an array substrate, and belongs to the technical field of pixel circuits, which can at least partially solve the problem that the maximum brightness of an existing organic light emitting diode display panel is limited by the output capability of a driving chip. The pixel circuit of the embodiment of the invention comprises a light emitting unit for emitting light; A driving unit for driving the light emitting unit to emit light according to the driving voltage applied to the driving unit; A memory unit for storing a drive voltage loaded to the drive unit; A writing unit for writing a data voltage into the memory unit; A compensation unit for writing the compensation voltage to the memory unit to obtain a driving voltage by the data voltage and the compensation voltage.

A method for automatic extraction of water body information from remote sensing satellite multispectral images is as follows: (1) extract the normalized water index from the apparent reflectance data of domestic remote sensing satellite multispectral images to form a normalized normalized water index image NDWI; (2) ) Perform global threshold segmentation based on the maximum inter-class variance algorithm on the normalized water index image to initially extract water body information; (3) perform local buffer expansion and threshold segmentation on the preliminary water body information to obtain a stable water body unit result set; ( 4) Obtain the slope and shadow information according to the elevation data and remove the shadow from the water body unit result set, and finally complete the water body information extraction. The invention adopts the method of computer automatic interpretation, utilizes the idea of ​​from global segmentation to local iterative segmentation, and extracts the normalized water body index in a streamlined manner, with high extraction precision and easy engineering.

Disclosed are an aromatic compound shown in the chemical formula 1 and an organic light-emitting diode containing the aromatic compound. In the chemical formula 1, A, Ar2, R1, R2 and m are same as that in the embodiment. The aromatic compound has characteristics of blue luminescence, high quantum efficiency, and excellent thermal stability. Moreover, the aromatic compound can be applied to a luminescent layer or hole transport layer of an organic light emitting diode, can improve the external quantum efficiency, the maximum brightness, current efficiency and power efficiency of the organic light emitting diode, and prolongs the service life of the organic light emitting diode.