82results about How to "Good image uniformity" patented technology

A transistor is constituted of a gate electrode 2, a gate insulation layer 3, a semiconductor layer 4 formed of an amorphous oxide, a source electrode 5, a drain electrode 6 and a protective layer 7. The protective layer 7 is provided on the semiconductor layer 4 in contact with the semiconductor layer 4, and the semiconductor layer 4 includes a first layer at least functioning as a channel layer and a second layer having higher resistance than the first layer. The first layer is provided on the gate electrode 2 side of the semiconductor layer 4 and the second layer is provided on the protective layer 7 side of the semiconductor layer 4.

An electronic imaging system for providing a viewable color image from an image data stream, including: a plurality of different colored laser light sources arranged in an at least one array with each such colored laser light source including a vertical cavity design; at least one area light valve for receiving the laser light and producing the viewable color image from the image data stream; and a projection lens for projecting the viewable color image onto a target plane.

A transistor is constituted of a gate electrode 2, a gate insulation layer 3, a semiconductor layer 4 formed of an amorphous oxide, a source electrode 5, a drain electrode 6 and a protective layer 7. The protective layer 7 is provided on the semiconductor layer 4 in contact with the semiconductor layer 4, and the semiconductor layer 4 includes a first layer at least functioning as a channel layer and a second layer having higher resistance than the first layer. The first layer is provided on the gate electrode 2 side of the semiconductor layer 4 and the second layer is provided on the protective layer 7 side of the semiconductor layer 4.

A display apparatus comprises at least one spatial light modulator and at least one curved view angle control element that comprises plural retarders arranged between the display polariser of each spatial light modulator, and an additional polariser. The curvature of the view angle control element provides increased luminance uniformity for a head-on user and increased visual security to an off-axis snooper.

A capacitive sensing array device of an electronic apparatus includes sensing electrodes, a shielding conductor layer, a coupling signal source, a constant voltage source and switch modules. The coupling signal source provides a coupling signal coupled to an object. The constant voltage source provides a constant voltage to the shielding conductor layer to form a stable vertical parasitic capacitor between the shielding conductor layer and each sensing electrode. Each switch module is electrically connected to the constant voltage source via the corresponding sensing electrode. When one sensing electrode is selected to perform sensing, the corresponding switch module is configured as an open-circuited state such that the selected sensing electrode is disconnected from the constant voltage source, while the other sensing electrodes are electrically connected to the constant voltage source to form a stable horizontal parasitic capacitor between the selected sensing electrode and the other sensing electrodes.

The invention provides a pixel circuit, a drive method, an organic luminous display panel and a display device of the pixel circuit. The pixel circuit comprises a drive transistor, a first storage capacitor, a collection unit, a writing unit and a luminous unit, wherein the collection unit is used for collecting threshold voltage of the drive transistor and enabling the threshold voltage to be stored into the first storage capacitor under the control of a first scanning signal, the writing unit is used for storing data voltage input by a data voltage input end under the control of a second scanning signal, and the luminous unit is used for being driven to emit light through the data voltage and voltage input by a controllable low voltage input end under the control of a luminous control signal. Therefore, an organic luminous device is free of being influenced by drift of the threshold voltage of the drive transistor, image uniformity of the organic luminous display panel can be effectively improved, the decay speed of the organic luminous device can be slowed down, and uniformity and constancy of luminance of the organic luminous display panel are ensured.

An autostereoscopic display device comprises a display panel (3) having an array of display pixel elements (5) for producing a display, the display pixel elements being arranged in rows and columns. An imaging arrangement (9) directs the output from different pixel elements to different spatial positions to enable a stereoscopic image to be viewed. The imaging arrangement comprises first and second polarization-sensitive lenticular arrays (50,52), wherein the light incident on the imaging arrangement is controllable to have one of two possible polarizations, and wherein each of the two possible polarizations gives a different 3D mode. These multiple modes can be used to increase the resolution, or increasing the number of views, or provide additional functionality to the display device.

A driving method of a field sequential display apparatus is provided. First, a plurality of scan lines of the field sequential display apparatus are sequentially driven according to a scanning sequence in a first period of a first field, wherein the first field is in a first frame. Next, the scan lines are sequentially driven according to an opposite sequence in a second period of the first field, wherein the opposite sequence is in the reverse order of the scanning sequence. Finally, the scan lines are simultaneously driven or not driven in a third period of the first field. Consequently, the disclosed driving method can promote the uniformity of the image brightness.

Gamma correction for adjusting a white balance of an image may be performed and uniformity of an image being displayed may be improved by modulating a pulse width of a received video data signal. A driving apparatus for an electron emission device may include a controller for receiving an external video data signal and generating a plurality of clock signals based on the video data signal, and a data driver for receiving a corresponding one of the plurality of clock signals from the controller and modulating a pulse width of the received video data signal based on the corresponding clock signal.

The invention relates to an ultra-wide field angle and large aperture fish-eye lens optical system, and the system sequentially comprises a front optical system with the negative focal power and a rear optical system with the positive focal power from the object side to the image side along an optical axis. The front optical system sequentially includes a first lens of negative power, a second lens of negative power and a third lens of negative power from the object side to the image side in the direction of the optical axis. The rear optical system sequentially includes a fourth lens of negative power, a fifth lens of positive power, a sixth lens of negative power, a seventh lens of the positive power, an eighth lens of the negative power, an aperture diaphragm, a ninth lens of the positive power, a tenth lens of the negative power, an eleventh of the negative power, a twelfth lens of the positive power and a filter from the object side to the image side in the direction of the optical axis. The system provided by the invention is good in image plane uniformity, is high in imaging quality, is large in view field angle, is large in receiving aperture, is compact in structure, and is easy to process and install.

The invention discloses a pixel circuit. The pixel circuit comprises a switch transistor, a driving transistor and a first diode. The switch transistor is provided with a first grid end receiving a scanning signal, a first electrode end receiving a data signal and a second electrode end. The driving transistor is provided with a first grid end electrically connected to a second electrode end of the switch transistor, a second grid end, a first electrode end electrically connected with a first voltage source and a second electrode end, the second grid end of the driving transistor is electrically connected with a second voltage source through the first diode, and the voltage supplied by the second voltage source is lower than the voltage supplied by the first voltage source. The pixel circuit can reduce offset of critical voltage, thereby promoting uniformity of images.

A method and a display device for uniform image display are provided. The method is used for a full in-cell display device and includes steps of: a display device inputting a first image signal, compensating the first image signal according to image compensation data to obtain a third image signal and displaying the third image signal. The display device includes a color filter substrate, an array substrate and a liquid crystal layer disposed therebetween. A side of the array substrate facing toward the liquid crystal layer is disposed touch electrodes. The touch electrodes are combined with common electrodes of the array substrate and arranged on the array substrate in a matrix. The compensation data are common electrode voltage offsets determined according to differences between grayscale information of the first image signal and an original second image signal. Accordingly, the invention can effectively improve the displayed image uniformity.

The invention relates to an ultra-wide-angle lens system capable of being used for a capsule endoscopy. The ultra-wide-angle lens system comprises a first lens group, an aperture diaphragm and a second lens group from an object space in an optical axis direction; the first lens group comprises a first lens with the negative focal power, a second lens with the negative focal power, and a third lenswith the positive focal power; and the second lens group comprises a fourth lens with the positive focal power, a fifth lens with the negative focal power, a sixth lens with the negative focal power,a seventh lens with the positive focal power, and an eighth lens with zero focal power. The ultra-wide-angle lens system capable of being used for the capsule endoscopy has the characteristics of large view field angle, large aperture, miniaturization, good image surface uniformity, high imaging quality, compact structure and simple processing.

The invention discloses a fish-eye lens for a doublet lens. The fish-eye lens comprises a lens group which is characterized by comprising a first lens (1), a second lens (2), a third lens (3), a fourth lens (4), a fifth lens (5), a sixth lens (6), a seventh lens (7), an eighth lens (8), a ninth lens (9), a tenth lens (10) and an eleventh lens (11) which are sequentially and coaxially arranged from an object side to an image side; the first lens (1), the second lens (2) and the third lens (3) are spherical lenses having negative diopters and convex surfaces facing the object side; the fourth lens (4) and the fifth lens (5) are aspherical lenses having convex surfaces facing the object side and positive diopters; the sixth lens (6), the seventh lens (7), the eighth lens (8), the ninth lens (9), the tenth lens (10) and the eleventh lens (11) respectively form three groups of doublet lenses. The optical system is simple in structure, good in uniformity of image surface and large in rear operating distance, and can be applied to actual production of cameras for civil use.

The present invention provides an array substrate and a liquid crystal display panel. In the array substrate, with regard to storage capacitors corresponding to one scan line, a capacitance value of the storage capacitor(s) corresponding to the middle of the scan line is smaller than the capacitance value of each of the storage capacitors corresponding to two ends of the scan line, and thereby when data lines input voltage signals, a voltage difference between a pixel electrode(s) of the storage capacitor(s) corresponding to the middle of the scan line and the pixel electrodes of the storage capacitors corresponding to the two ends of the scan line is smaller than a threshold value. By the above described manner, the present invention can improve the uniformity of image brightness.

The invention relates to an apparatus for optimizing wide-range image collection based on machine vision. The apparatus comprises an image acquisition unit, an image preprocessing unit, an image processing unit and an image output unit. The image acquisition unit includes a light source generation module and an image acquisition module. During the defect detection process, the image acquisition module receives reflected light from a visual light source and performs photoelectric conversion to output original image data; and the mage preprocessing unit receives an original image sent pixel grayvalue sent by the image acquisition module, carries out equalization on the original image sent pixel gray value, and then inputs the processed original image sent pixel gray value into the image processing unit. Therefore, on the basis of the image equalization and light source intensity correction methods, the image gray error after processing is reduced by several magnitude orders by being compared with the original image, so that the overall image uniformity is improved effectively. Moreover, the apparatus being suitable for the image with the poor light source uniformity is not limited to the column pixels and can be extended to make a light source intensity map being associated with the image gray, so that the flaw detection accuracy is improved.

An object of the present invention is to provide an optical information recording medium by which the getting thereof in and out of a reproducing apparatus and the reproducing of recoding data can be stably and reliably performed and the recording content can be visually confirmed, and which has the reversible display function of performing at least one of the recording, erasing and rewriting of the display which is excellent in the uniformity of the image, easily, with a good appearance and without damaging the optical information recording medium; a manufacturing method of the above-noted optical information recording medium; and an image processing method using the above-noted optical information recording medium. For this object, the present invention provides the optical information recording medium comprising a substrate, an optical information layer disposed on the substrate and a reversible thermosensitive layer in which at least a part of the information recorded in the optical information layer can be recorded in such a manner that the part of the information can be visually recognized, in this order; and further a cushion layer in at least a part of the space between the optical information layer and the reversible thermosensitive layer.

The invention relates to a miniature aspheric fisheye lens capable of being used for on-vehicle monitoring. In an optical axis direction, the miniature aspheric fisheye lens comprises a front-set optical system with negative focal power, and a back-set optical system with positive focal power, wherein the front-set optical and the back-set optical system are successively arranged from an object side to an image side. The front-set optical system comprises a first lens with negative focal power, a second lens with negative focal power, and a third lens with negative focal power, wherein the first lens, the second lens and the third lens are successively arranged in the optical axis direction from the image side to the object side. The back-set optical system comprises a fourth lens with positive focal power, a fifth lens with negative focal power, an aperture diaphragm, a sixth lens with negative focal power, a seventh lens with positive focal power, an eighth lens with positive focal power, a ninth lens with negative focal power, a tenth lens with positive focal power, and an optical filter, wherein the fourth lens, the fifth lens, the aperture diaphragm, the sixth lens, the seventh lens, the eighth lens, the ninth lens, the tenth lens and the optical filter are successively arranged in the optical axis direction from the object side to the image side. The miniature aspheric fisheye lens has advantages of high imaging quality, small size, compact structure, easy processing, easy mounting, etc.

Reflective chiral nematic liquid crystal material is disposed between a first set of electrodes and a second set of electrodes arranged on opposed sides of the material to define a collection of pixels. Fast updating dynamic drive scheme is implemented by selectively applying an electric field via the electrodes through the pixels in four phases of energization: preparation, selection, evolution, and non-select. Each phase is made up of a series of voltages having varying amplitudes. The voltage waveform is for each phase controlled based on the selection phase to achieve image uniformity. For example, the evolution voltages that are established across adjacent pixels having the same final state have initial amplitudes that are equal for both pixels to increase image uniformity.

The present invention provides a thermal transfer receiving sheet obtained by sequentially forming a hollow particle-containing intermediate layer and an image receiving layer on one surface of a sheet-like support mainly comprising cellulose pulp, wherein the moisture content of the entire thermal transfer receiving sheet is from 2 to 8 mass % and the moisture permeability of the entire receiving sheet is 400 g / m2·day or less; and a production method thereof. The present invention further provides a thermal transfer receiving sheet obtained by sequentially forming a hollow particle-containing intermediate layer and an image receiving layer on one surface of a sheet-like support mainly comprising cellulose pulp and providing a backside layer on another surface of the support, wherein the backside layer mainly comprises an acryl-based resin having a glass transition point (Tg) of 45° C. or less and contains a resin filler having an average particle diameter of 5 to 22 μm and the Bekk smoothness according to JIS P 8119 on the backside layer surface is 100 seconds or less.

The present invention relates to a thermal transfer ribbon containing exfoliated layered inorganic nanoparticles or exfoliated layered double hydroxides and a manufacturing method thereof, and more particularly to a sublimation thermal transfer ribbon wherein a second adhesive layer, a transfer ink layer and a transfer protective layer are formed on one surface of a base film having a lubricating heat-resistant layer and a first adhesive layer formed on the other surface thereof, in which the lubricating heat-resistant layer, the transfer ink layer and the transfer protective layer contain exfoliated layered inorganic nanoparticles or exfoliated layered double hydroxide nanoparticles to improve the heat resistance, image uniformity and abrasion resistance of the thermal transfer ribbon.

The present invention provides an array substrate and a liquid crystal display panel. In the array substrate, as to thin film transistors connected with one scan line, a width-to-length ratio of the thin film transistor(s) corresponding to the middle of the scan line is larger than the width-to-length ratio of the thin film transistors corresponding to two ends of the scan line, and thereby when data lines input voltage signals, a voltage difference between a pixel electrode(s) connected with the thin film transistor(s) corresponding to the middle of the scan line and the pixel electrodes connected with the thin film transistors corresponding to the two ends of the scan line is smaller than a threshold value. By the above described manner, the present invention can improve the uniformity of image brightness.

The invention provides an image sensor and an image correction method thereof. The whole pixel array of an image sensor chip is divided into multiple sub-arrays; after the image sensor chip is encapsulated and before the delivery, a test is carried out so that a fitting value of each sub-array in different light intensities is obtained and written into an internal storage unit of the image sensorchip; and after the image sensor chip is delivered and used for outputting images, corresponding fitting values can be called automatically from the internal storage unit to correct output of the sub-arrays correspondingly, so corrected images are output. Thus, image uniformity of the image sensor is improved.

In a method and apparatus for improving the brightness uniformity in an image, signals are acquired using a radio frequency receiving coil, and noise in the acquired signals is normalized so as to produce an image, then the brightness of various pixels in the image is determined according to the sensitivity of the radio frequency receiving coil. The brightness of the image is then made uniform by compensating the brightness of the various pixels in the image.