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31results about How to "Increase physical resolution" patented technology

Photosensitive composite dielectric gate MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) detector

The invention relates to an arrangement method of a photosensitive composite dielectric gate MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) detector. Each unit detector has a structure that N-shaped semiconductor regions are respectively arranged at both upper sides of a P-shaped semiconductor material of a substrate, two insulated dielectric material layers and a control grid electrode are respectively arranged over the substrate, a photoelectron storage layer is arranged between the two insulated dielectric material layers, the second insulated dielectric in contact with the control grid is made of a material preventing charges stored in the photoelectron storage layer from flowing into the grid electrode, a source electrode and a drain electrode are in suspended structures when photoelectrons are collected and stored to the photoelectron storage layer, the first insulated dielectric is a bottom dielectric and adopts silica, SiON or other dielectric materials with high dielectric constants, the second insulated dielectric layer is made from a top dielectric and adopts silica / silicon nitride / silica, silica, alumina or other dielectric materials with high dielectric constants, and the substrate layer or the grid electrode surface is provided with at least one transparent or semi-transparent window for detecting the wavelength of the detector.
Owner:NANJING UNIV +1

Sound pressure and vibration velocity cross spectrum method-based vector array port and starboard discrimination method

The invention belongs to the underwater sound direction-finding field and relates to a sound pressure and vibration velocity cross-spectrum method-based vector array port and starboard discrimination method. The method includes the following steps that: step (1) after received sound pressure signals are converted into frequency-domain signals, frequency-domain broadband conventional beamforming processing is carried out on the frequency-domain signals, so that an original spatial spectrum matrix can be obtained, wherein the spatial spectrum matrix is a matrix of an outputted spatial spectrum type; step (2) bidirectional one-order recursive filtering processing is performed on the obtained original spatial spectrum matrix, so that a smoothed spatial spectrum can be obtained; and step (3) according to the smooth spatial spectrum, DT decibels are increased based on the smooth spatial spectrum, so that a threshold for spectral peak screening can be obtained. According to the method of the invention, peak screening is carried out on the spatial spectrum; direction estimation is carried out on signals in a spectral peak range; subtractive suppression is carried out on pseudo peak measurement through comparing an estimated result with a spectral peak position; and therefore, the problem of port-starboard ambiguity under a low signal-to-noise ratio can be solved, and weak target detection under a homogeneous noise background can be improved.
Owner:HARBIN ENG UNIV

Pixel arrangement mode and display panel using same

One embodiment of the present invention discloses a method for pixel arrangement and a display using the same. The display areas are divided into a plurality of rectangular regions which have the same area according to a plurality of vertical grids which own the same distance between the adjacent. According to pre-positioning horizontal axis lines and pre-positioning vertical axis lines, each of the rectangular regions is divided into four parts including an upper left part, an upper right part, a lower left part and a lower right part. Each of the four parts are divided into two sub-pixel areas by a line which is inside the part. The line connects the angle point of the region which the part belongs to and the cross point of the horizontal axis line and the vertical axis line of the region which the part belongs to.
Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD

Method for pixel arrangement and display pannel using the same

One embodiment of the present invention discloses a method for pixel arrangement and a display using the same. The display areas are divided into a plurality of rectangular regions which have the same area according to a plurality of vertical grids which own the same distance between the adjacent. According to pre-positioning horizontal axis lines and pre-positioning vertical axis lines, each of the rectangular regions is divided into four parts including an upper left part, an upper right part, a lower left part and a lower right part. Each of the four parts are divided into two sub-pixel areas by a line which is inside the part. The line connects the angle point of the region which the part belongs to and the cross point of the horizontal axis line and the vertical axis line of the region which the part belongs to.
Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD

Signal read-out amplifying method of photosensitive compound medium grid MOSFET detector

The invention relates to a signal read-out amplifying method of a photosensitive compound medium grid MOSFET detector, comprising the following steps of: setting N-type semiconductor regions at both sides above a P-type semiconductor material of a substrate to form a source electrode and a drain electrode, setting a bottom-layer and top-layer insulting medium material and grid above the substrate as well as a photosensitive compound medium grid MOSFET detector of a photoelectron storage layer; reading out and amplifying the photoelectron, i.e., grounding the source electrode of the detector and the substrate, connecting the drain electrode at a positive voltage of about 0.1V, and enabling the MOSFET detector to operate in a linear region by adjusting the grid voltage of about 1-3V; directly measuring the output drain current to obtain the relation of the current variation of the drain electrode and the number of the searched photoelectron i.e., biasing VG on the grid of the detector and grounding the substrate, wherein the photoelectron in the photoelectron storage layer is formed in the P-type semiconductor substrate by tunneling when the negative bias is high enough. The invention overcomes error caused by excursion of the electron mobility.
Owner:NANJING UNIV

Display substrate, driving method thereof and display device

The invention discloses a display substrate, a display method of the display substrate and a display device. The display substrate comprises pixel sets which are arranged repeatedly. Each pixel set comprises two first sub-pixels, two second sub-pixels and two third sub-pixels. The first sub-pixel, the second sub-pixel and the third sub-pixel in the first pixel row of each pixel set are sequentially arranged, and the third sub-pixel, the first sub-pixel and the second sub-pixel in the second pixel row of each pixel set are sequentially arranged. The center line of any sub-pixel in the first pixel row in each pixel set in the column direction does not coincide with the center line of any sub-pixel in the second pixel row of the corresponding pixel set in the column direction. According to the display substrate, the display method of the display substrate and the display device, the high display resolution can be achieved on the display device with the low physical resolution, the power consumption of the display device is reduced, the aperture rate of the display device is improved, the manufacturing technology of the display device is lowered, and cost is reduced.
Owner:BOE TECH GRP CO LTD +1

Display panel and display method and device thereof

The invention provides a display panel and a display method and device thereof. In the display panel and the display device, each pixel group includes eight sub-pixels; the eight sub-pixels include six colored sub-pixels having three different colors, one chrominance compensation sub-pixel and one luminance compensation sub-pixel; each sub-pixel is in a triangle shape, each row of sub-pixels is formed by alternately arranged triangle sub-pixels and inverted-triangle sub-pixels, the arrangement of the sub-pixels is more compact, and under the condition that the size of the display panel is keptunchanged, the physical resolution of the display panel can be improved. According to the display method of the display panel, when the corresponding color is displayed at each colored sub-pixel position, color compensation is realized through the display of multiple colored sub-pixels having the same color near the position, furthermore, display compensation is realized through multiple chrominance compensation sub-pixels and multiple luminance compensation sub-pixels near the position, and thus the display effect can be improved.
Owner:YUNGU GUAN TECH CO LTD

Efficient line scanning photo-curing imaging device and method

The invention relates to an efficient line scanning photo-curing imaging device and method. The device comprises a frame, wherein a liquid tank is arranged above the frame, a photosensitive resin is arranged in the liquid tank, a flexible transparent bottom is arranged at the bottom of the liquid tank, a linear module is arranged below the frame, a movable platform is arranged on the linear module, the moving direction of the movable platform is parallel to the longitudinal direction of a flexible transparent bottom, a support is arranged on the movable platform, a laser light source, a resonance type micro-electromechanical reflector and a rigid narrow-line wide window are arranged on the support, a light beam emitted by the laser light source is just printed on the resonance type micro-electromechanical reflector, the deflection axis of the resonance type micro-electromechanical reflector is parallel to the longitudinal plane of the flexible transparent bottom and is perpendicular tothe longitudinal center line of the flexible transparent bottom to coincide, rigid parts at the two sides of the rigid narrow-line wide window are in contact with the flexible transparent bottom andenable the rigid narrow-line wide window to be elastically deformed and tensioned, and the window direction of the rigid narrow-line wide window is consistent with that of the flexible transparent bottom. According to the efficient line scanning photo-curing imaging device, the scheme is economic and reasonable, the physical resolution is high, the light energy utilization rate is high, and the efficient line scanning photo-curing imaging device is easy to popularize and apply in large-scale, high-precision and high-efficiency photo-curing three-dimensional forming equipment.
Owner:杭州德迪智能科技有限公司

Display panel and display device

The invention discloses a display panel and a display device. The display panel comprises a plurality of sub-pixels in arrayed distribution, and the sub-pixels comprise first sub-pixels small in areaand second sub-pixels large in area. The first sub-pixels and the second sub-pixels both comprise two kinds of sub-pixels different in color, the four kinds of sub-pixels are different in color, and the first sub-pixels at least comprise white sub-pixels. The sub-pixels comprise repeated arranging units, and are composed of eight sub-pixels arranged in two rows and four columns, and the sub-pixelson the first row and the second row comprise two first sub-pixels different colors and two second sub-pixels different in colors. The repeated arranging units are repeatedly arranged in the first direction and the second direction. In the repeated arranging units, at least in two adjacent columns of sub-pixels, the arranging sequences of the first sub-pixels and the second sub-pixels in the second direction are different, and two first sub-pixels different in color and two second sub-pixels different in color are included. By means of the display panel and the display device, the resolution ratio of the display panel can be increased.
Owner:SHANGHAI AVIC OPTOELECTRONICS

Organic light-emitting display apparatus and pixel structure therefor

Disclosed is a pixel structure. The pixel structure comprises multiple pixel units, wherein each pixel unit adopts a rectangular shape, and comprises first sub pixels, second sub pixels and third sub pixels; the first sub pixels and the second sub pixels are L-shaped; the first sub pixels and the second sub pixels are arranged in opposite and form a region used for at least accommodating a part of the third sub pixels; at least one edges of the third sub pixels are at least partially overlapped with one edge of the corresponding pixel unit; the transverse adjacent pixel units are in mirror image distribution; and the longitudinal adjacent pixel units are in mirror image distribution. Due to the structure, the first sub pixels, the second sub pixels and the third sub pixels are adjacent to the corresponding sub pixels of the adjacent pixel units, so that an opening can be shared by the adjacent sub pixels in the manufacturing process, and the opening area in evaporation can be enlarged; meanwhile, a reserved gap is not required in the evaporation process of the adjacent sub pixels, so that the aperture ratio is improved, and the a relatively high physical resolution ratio can be further realized. An organic light-emitting display apparatus adopting the pixel units is relatively high in resolution ratio.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Rotary encoder based on light sensation principle and measuring method thereof

The invention discloses a rotary encoder based on a light sensation principle, and belongs to the field of encoders. The encoder comprises a main shaft, a wheel disc is fixed on the main shaft, a laser emission device is installed on the wheel disc, a photoresistance area array is located in front of the laser emission device, and a signal processing system is connected with the photoresistance area array, and meanwhile the invention further discloses a measuring method of the rotary encoder. According to the rotary encoder based on the light sensation principle and the measuring method of the rotary encoder, the position of a mechanical shaft is measured through the photoresistance area array, the fact that the precision of the encoder is restricted by precision machining technology can be avoided, a coded disc of high resolution is not needed to code, and the physical resolution of the rotary encoder is greatly higher than a mechanical coded disc.
Owner:FOSHAN QINGZI PRECISION MEASUREMENT & CONTROL TECH

Touch panel, driving method thereof and touch display device

The invention provides a touch panel, a driving method thereof and a touch display device, and relates to the technical field of touch. A plurality of first touch electrodes distributed in the first direction and a plurality of second touch electrodes distributed in the second direction are arranged in a touch panel, a plurality of third touch electrodes and / or a plurality of fourth touch electrodes are further arranged, and the third touch electrodes are arranged between every two adjacent first touch electrodes. Fourth touch electrodes are arranged between every two adjacent second touch electrodes; the plurality of third touch electrodes is divided into at least one group, the third touch electrodes in the same group are connected with the same third touch lead, the plurality of fourthtouch electrodes are divided into at least one group, and the fourth touch electrodes in the same group are connected with the same fourth touch lead. By adding the plurality of third touch control electrodes and / or the plurality of fourth touch control electrodes in the touch control panel, the physical resolution of the touch control panel is improved, so that the detection precision of a touchcontrol position during touch control of the active pen is improved.
Owner:BOE TECH GRP CO LTD +1

Pixel driving circuit and driving method thereof, display panel and display device

The invention discloses a pixel driving circuit, a driving method of the pixel driving circuit, a display panel and a display device. The pixel driving circuit comprises a drive circuit, an energy storage circuit; a data and sensing line; a first initialization circuit; a second initialization circuit and a data writing circuit, wherein in the display mode, the data and sensing line writes data voltage into the control end of the driving circuit through the data write-in circuit; in the sensing mode, the data and sensing line receives the sensing data output by the driving circuit through thesecond initialization circuit to obtain external compensation value of the drive circuit; therefore, the data lines and the sensing lines are combined, the number of source-level driving chip channelscan be reduced, meanwhile, the accuracy of the obtained external compensation value can be ensured, the physical resolution of the panel can be improved, and the compensation speed can be increased.
Owner:BOE TECH GRP CO LTD

Virtual LED display module based on three-color strip-type LED chips and virtual LED six-fold frequency-doubling display method based on three-color strip-type LED chips

The invention relates to a virtual LED display module based on a three-color strip-type LED chip and a virtual LED six-fold frequency-doubling display method based on the three-color strip-type LED chips. The virtual LED display module comprises a three-color LED chip group formed by three-color strip-shaped LED chips; each three-color strip-shaped LED chip comprises at least three LED light emitting units; three-color strip-shaped LED chips are regularly arrayed such that a regular array of multiple equilateral triangles is formed by multiple LED light emitting units; and three LED light emitting units of three vertexes of each equilateral triangle are LED light emitting units have different primary colors. LED chips integrated with three colors RGB are prepared by adoption of light emitting material on the basis of GaN material. The LED chips are regularly arrayed to form small spacing arrays in which primary-color light emitting units are uniformly distributed at equal intervals. Therefore, physics resolution is increased. Meanwhile, six-fold scanning is performed through a sub-pixel sharing method so that virtual pixels are displayed and visual density is increased by six times. Sharpness of image display is raised.
Owner:XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD

Signal de-smoothing method and system

The present application discloses a signal de-smoothing method and system. The signal de-smoothing method adopts a more reasonable assumption, i.e., assuming that the metastable helium atom density ina sub-detection region of each layer is a constant. The metastable helium atom density data processing method based on this assumption is beneficial to reducing the signal smoothness during the detection process, and achieves the purpose of reducing the smoothness of signals received by a receiving system to a true value on height, thereby achieving the purpose of improving the physical resolution of each pixel element in the receiving system of a receiving and transmitting split metastable helium laser radar. In addition, by using the signal de-smoothing method for data processing, the distance resolution can be improved to a certain extent, the smoothing effect can be removed, and fluctuations or mutations within a small scale range can be discovered more easily.
Owner:UNIV OF SCI & TECH OF CHINA

Piezoelectric array spray head and spraying equipment including the same

ActiveCN105128532BDoes not affect spacingSimple structurePrintingSpray nozzleEngineering
The invention discloses a piezoelectric array nozzle and spraying equipment comprising the same, and belongs to the field of piezoelectric ceramics. The nozzle comprises a nozzle power part an a nozzle ink part, wherein the nozzle ink part comprises a plurality of sheet-shaped parallel ink-spraying cavities. Each ink-spraying cavity is provided with an ink inlet, an ink outlet, and a spraying nozzle, wherein the spraying nozzle is located on an end face, parallel to the thickness direction, of the ink-spraying cavity. Two side walls, perpendicular to the thickness direction, of each ink-spraying cavity are flexible side walls. The nozzle power part employs a piezoelectric ceramic cantilever beam, wherein one end of the piezoelectric ceramic cantilever beam is fixed and the other end of the piezoelectric ceramic cantilever beam contacts with and drives the flexible side walls. Compared with the prior art, the nozzle provided by the invention is high in physical resolution, and the physical resolution can be adjusted. The nozzle is wide in application range, is simple in structure, and is convenient for maintenance.
Owner:PAIHE SCI & TECH HLDG CO LTD BEIJING +1

Array substrate, display panel and display device

The invention discloses an array substrate, a display panel and a display device. The pixel unit row of the array substrate comprises multiple first pixel units, multiple second pixel units and multiple third pixel units; the first pixel unit comprises two first sub-pixels arranged along the second direction; the second pixel unit comprises two second sub-pixels arranged along the second direction; the third pixel unit comprises a third sub-pixel extending along the second direction or two third sub-pixels arranged along the second direction; the light emitting colours of the first sub-pixels,the second sub-pixels and the third sub-pixels are different; the minimum included angle between the second direction and the first direction is A; and the A is greater than 0 DEG and less than or equal to 90 DEG. According to the technical scheme provided in the embodiment of the invention, the physical resolution of the display panel is increased; the granular sensation problem of a display picture is improved; the distribution uniformity of various-colour sub-pixels is improved; and thus, the display effect of the display panel is improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD

Virtual LED display module based on three-color H-shaped LED chips and two-time frequency display method

The invention relates to a virtual LED display module based on three-color H-shaped LED chips and a two-time frequency display method. The virtual LED display module comprises a three-color LED chip group consisting of the three-color H-shaped LED chips and single-color LED chips; each three-color H-shaped LED chip comprises five LED luminous units; in the three-color LED chip group, the three-color H-shaped LED chips are arranged by m* n array, and the single-color LED chips are arranged among the adjacent three-color H-shaped LED chips of the m* n array along a first direction; and in the three-color LED chip group, the LED luminous units are arranged to form a plurality of triangles, and the distances among the optional adjacent LED luminous units along the first direction are equal toone another. RGB three-color-integrated H-shaped LED chips which are prepared by luminous materials in three colors on the basis of GaN materials are adopted, virtual pixel displaying is implemented by two-time scanning, and the image display definition is improved.
Owner:XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD

Virtual LED display module based on four-color LED chips and four-time frequency displaying method

The invention relates to a virtual LED display module based on four-color LED chips and four-time frequency displaying method. The virtual LED display module comprises a four-color LED chip group consisting of four-color LED chips; each four-color LED chip comprises at least four LED luminous units; the four-color LED chips are arranged regularly, so that the LED luminous units form an M* N matrix; and distances among the optional adjacent LED luminous units are equal to one another. The RGBY four-color-integrated LED chips prepared from luminous materials in four colors on the basis of GaN materials are adopted, and are regularly arranged, connected and assembled into the four-color LED chip group, a small-distance four-color luminous unit matrix array which is formed by equidistant and uniform arrangement of all primary-color luminous units is formed, and the physical resolution is improved. Meanwhile, four-time scanning is carried out by a sub-pixel sharing method, virtual pixel displaying is realized, visual density is increased to four times, and image display definition is further improved.
Owner:XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD

Pixel structure and organic light-emitting display apparatus adopting same

Disclosed is a pixel structure. The pixel structure comprises multiple pixel units, wherein each pixel unit adopts a rectangular shape, and comprises first sub pixels, second sub pixels and third sub pixels; the first sub pixels and the second sub pixels are positioned on the two sides of the third sub pixels respectively; the second sub pixels have the same shapes as the first sub pixels; the third sub pixels are T-shaped; the transverse adjacent pixel units are in mirror image distribution; and the longitudinal adjacent pixel units are in mirror image distribution. Due to the structure, the first sub pixels, the second sub pixels and the third sub pixels are adjacent to the corresponding sub pixels of the adjacent pixel units, so that an opening can be shared by the adjacent sub pixels in the manufacturing process, and the opening area in evaporation can be enlarged; meanwhile, a reserved gap is not required in the evaporation process of the adjacent sub pixels, so that the aperture ratio is improved, and the a relatively high physical resolution ratio can be further realized. An organic light-emitting display apparatus adopting the pixel units is relatively high in resolution ratio.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Display substrate, driving method thereof, and display device

The invention discloses a display substrate, a driving method thereof and a display device. The display substrate includes pixel groups arranged repeatedly, and each pixel group includes two first sub-pixels, two second sub-pixels and two third sub-pixels, and each of the pixel groups in the first pixel row The first sub-pixel, the second sub-pixel and the third sub-pixel are arranged in sequence, and the third sub-pixel, the first sub-pixel and the third sub-pixel in the second pixel row of each pixel group The second sub-pixels are arranged in sequence, and the center line of any sub-pixel in the first pixel row in the column direction does not coincide with the center line of any sub-pixel in the second pixel row in the column direction. The present invention enables the display device to achieve higher display resolution with lower physical resolution, reduces the power consumption of the display device and improves the aperture ratio of the display device, reduces the difficulty of the manufacturing process of the display device and reduces the cost.
Owner:BOE TECH GRP CO LTD +1

Pixel driving circuit and driving method thereof, display panel and display device

The invention discloses a pixel driving circuit and a driving method thereof, a display panel and a display device. The pixel driving circuit comprises: a driving circuit; an energy storage circuit; a data and a sensing line; a first initialization circuit; a second initialization circuit; In the display mode, the data and sensing lines write the data voltage into the control terminal of the driving circuit through the data writing circuit, and in the sensing mode, the data and sensing lines receive the voltage output by the driving circuit through the second initialization circuit Sensing data in order to obtain the external compensation value of the driving circuit. Therefore, combining the data line and the sensing line can reduce the number of channels of the source-level driver chip, and at the same time, it can also ensure the accuracy of the obtained external compensation value, which is beneficial to Increase the physical resolution of the panel and increase the compensation speed.
Owner:BOE TECH GRP CO LTD

Organic light-emitting display device and its pixel structure

Disclosed is a pixel structure. The pixel structure comprises multiple pixel units, wherein each pixel unit adopts a rectangular shape, and comprises first sub pixels, second sub pixels and third sub pixels; the first sub pixels and the second sub pixels are L-shaped; the first sub pixels and the second sub pixels are arranged in opposite and form a region used for at least accommodating a part of the third sub pixels; at least one edges of the third sub pixels are at least partially overlapped with one edge of the corresponding pixel unit; the transverse adjacent pixel units are in mirror image distribution; and the longitudinal adjacent pixel units are in mirror image distribution. Due to the structure, the first sub pixels, the second sub pixels and the third sub pixels are adjacent to the corresponding sub pixels of the adjacent pixel units, so that an opening can be shared by the adjacent sub pixels in the manufacturing process, and the opening area in evaporation can be enlarged; meanwhile, a reserved gap is not required in the evaporation process of the adjacent sub pixels, so that the aperture ratio is improved, and the a relatively high physical resolution ratio can be further realized. An organic light-emitting display apparatus adopting the pixel units is relatively high in resolution ratio.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Display panel, display method thereof, and display device

The present invention provides a display panel, a display method thereof, and a display device. In the display panel and the display device, each pixel group includes eight sub-pixels, and the eight sub-pixels are six color sub-pixels with three different colors , a chromaticity compensation sub-pixel and a brightness compensation sub-pixel, and the shape of each sub-pixel is a triangle, and each row of sub-pixels is alternately arranged by upright triangles and inverted triangles, and the arrangement of each sub-pixel is more compact. When the size of the display panel remains unchanged, the physical resolution of the display panel is improved; in the display method of the display panel of the present invention, when each color sub-pixel position displays a corresponding color, multiple pixels of the same color near the position Color compensation is performed on the display of the color sub-pixels, and display compensation is further performed through a plurality of chroma compensation sub-pixels and a plurality of brightness compensation sub-pixels near the position, so that the display effect can be improved.
Owner:YUNGU GUAN TECH CO LTD

Internal circulation type ink jet head assembly and ink jet head

The invention discloses an internal circulation type ink jet head which comprises a PZT driver and two cover plates. The two cover plates are arranged on the two sides of the PZT driver correspondingly. Ink inlets are formed in the cover plates. An ink jet cavity is formed among the PZT driver and the cover plates on the two sides of the PZT driver and is provided with multiple ink ways, the multiple ink ways are communicated, and a nozzle plate is arranged at an outlet of each ink way. The multiple ink ways are communicated to form the internal circulation type ink jet head sharing the ink ways, and the problem of insufficient ink supply is avoided. The invention further provides an internal circulation type ink jet head assembly which comprises multiple internal circulation type ink jetheads. Ink circulates in ink jet cavities of all the ink jet heads, branch ink ways for overlapping the ink jet heads are omitted, the size of the ink jet heads is reduced, the production cost is reduced, meanwhile, the physical resolution of ink-jet printing is increased, and the printing precision is improved.
Owner:山东中康激宏科技开发有限公司

A Vector Array Discrimination Method Based on Sound Pressure and Vibration Velocity Cross Spectrum Method

The invention belongs to the underwater sound direction-finding field and relates to a sound pressure and vibration velocity cross-spectrum method-based vector array port and starboard discrimination method. The method includes the following steps that: step (1) after received sound pressure signals are converted into frequency-domain signals, frequency-domain broadband conventional beamforming processing is carried out on the frequency-domain signals, so that an original spatial spectrum matrix can be obtained, wherein the spatial spectrum matrix is a matrix of an outputted spatial spectrum type; step (2) bidirectional one-order recursive filtering processing is performed on the obtained original spatial spectrum matrix, so that a smoothed spatial spectrum can be obtained; and step (3) according to the smooth spatial spectrum, DT decibels are increased based on the smooth spatial spectrum, so that a threshold for spectral peak screening can be obtained. According to the method of the invention, peak screening is carried out on the spatial spectrum; direction estimation is carried out on signals in a spectral peak range; subtractive suppression is carried out on pseudo peak measurement through comparing an estimated result with a spectral peak position; and therefore, the problem of port-starboard ambiguity under a low signal-to-noise ratio can be solved, and weak target detection under a homogeneous noise background can be improved.
Owner:HARBIN ENG UNIV

Touch panel, touch display device and touch method

The embodiment of the invention provides a touch panel, a touch-type display device and a touch method, which relates to the field of the manufacturing of a display device, can enable the physical resolution of the touch panel to be free from the limitation of the arrangement number of infrared receiving and transmitting devices, improve the physical resolution of the touch panel, reduce the quantity of the infrared receiving and transmitting devices and reduce the production cost and energy consumption of the display device. The touch panel comprises an infrared transmitting device and a first light guide module, which are arranged on one end of the panel, and / or an infrared receiving device and a second light guide device, which are arranged on the other end of the panel, wherein the first light guide module is used for splitting one path of infrared light transmitted by the infrared transmitting device into two or more paths of parallel infrared light; and the second light guide module is used for converging the more than two paths of parallel infrared light transmitted by the infrared transmitting device. The embodiment of the invention is used for manufacturing the touch panel.
Owner:BOE TECH GRP CO LTD +1
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