69 results about "VIRTUAL PIXEL" patented technology

A computer-implemented system and method for pupil-directed retinal projection in near-eye displays are disclosed. The computer-implemented system provides smart glasses with directed physical pixels that project light beams / signals directly onto user's retina based on pupil position and size. The glasses comprise frame, lenses with directed pixel layers, sensors for tracking pupil movement. Each directed pixel generates multiple virtual pixels by rapidly changing its emission angle. Each directed pixel with pupil's real-time tracking, provides automatic adjustments to virtual contents, ensuring accurate alignment of images with field of view of users while identifying vergence-accommodation conflict. The glasses function as prescription lenses, virtual reality displays, augmented reality devices without traditional optical systems. Additional features include depth sensors, cameras, connectivity to peripheral devices. The glasses enable seamless blend of virtual and real-world experiences, creating immersive “Mixverse” environment. Various input methods, including gesture recognition and brain-computer interfaces, allow for intuitive control and interaction.

A display apparatus includes a plurality of pixel driving circuits and at least one dummy pixel driving circuit disposed apart from each other on a substrate, a plurality of driving wires disposed corresponding to the plurality of pixel driving circuits, and a test wire electrically connected to the dummy pixel driving circuit.

The invention relates to a receiver for a laser radar, the laser radar and terminal equipment. The receiver comprises an SPAD chip, the SPAD chip comprises a pixel array, the pixel array extends along a first direction and a second direction, the pixel array comprises a first pixel array, the first pixel array comprises first pixels and is configured to receive echoes, reflected by an object, of detection light of the laser radar and output echo signals; and a second pixel array including second pixels and configured to receive visible light and output an image signal; wherein the first pixel and the second pixel are aligned in the second direction, the pixel array further comprises a dummy pixel, and the dummy pixel is located between the first pixel and the second pixel in the first direction.

A display substrate has a display region and a dummy pixel region including at least one pixel missing region and a redundant region; the display substrate includes a base substrate and a driving circuit layer including a plurality of circuit units, at least one of which includes a pixel driving circuit and initial signal lines; the pixel driving circuit includes first and second pixel driving circuits in the display region and the redundant region, respectively, and a capacitance value of a storage capacitor in the first pixel driving circuit is less than that in the second pixel driving circuit; the initial signal lines include first and second initial signal lines extending along first and second directions, respectively; the first initial signal line is electrically connected to at least a part of the second initial signal lines crossing the first initial signal line.

This invention discloses a method for fitting the geometric center of a centrally symmetric image, comprising: S1, constructing a pixel coordinate system based on the original image and obtaining the pixel coordinates of the edges of the centrally symmetric image on the original image; S2, selecting the two edge pixels with the largest distance from all edge pixels, and taking the midpoint between the two edge pixels with the largest distance as a temporary center point; S3, constructing a virtual pixel matrix in the area surrounding the temporary center point, and selecting the virtual pixel with the smallest sum of distances to all edge pixels as a new temporary center point; S4, repeating step S3 until the fitting accuracy of the temporary center point meets the design requirements. This invention directly fits the geometric center of a graphic based on the geometric characteristics of a centrally symmetric image. The calculation process is simple and direct, and it is widely applicable to the geometric center fitting of all centrally symmetric images. At the same time, the multi-step fitting and multiple iteration methods fully ensure the fitting accuracy.

The application provides a display panel, which comprises a pixel definition layer, the pixel definition layer comprises a plurality of pixel openings in a display area and a plurality of virtual pixel openings in a non-display area, the plurality of virtual pixel openings comprises at least one first virtual pixel opening and a plurality of second virtual pixel openings, the first virtual pixel opening is formed only in a region of a corner area close to an adjacent side area, and the plurality of second virtual pixel openings are arranged only in a region of the corner area away from the adjacent side area, the first virtual pixel opening does not need to adapt to the arc profile of the corner area, so that the difficulty of inkjet printing can be reduced, the ink can be prevented from being sprayed outside the first virtual pixel opening, and therefore the risk of color mixing can be reduced, and the production yield of the display panel can be improved.

A display device includes a plurality of pixels and a plurality of dummy pixels, a data driver connected to the plurality of pixels and the plurality of dummy pixels through data lines, a sensing circuit connected to the plurality of pixels and the plurality of dummy pixels through sensing lines, a scan driver configured to sequentially apply a scan signal and a first sensing signal to the plurality of pixels and the plurality of dummy pixels on a row-by-row basis in an active period of a frame period, to apply the scan signal and the first sensing signal to the plurality of pixels in a selected pixel row in a first period within a blank period of the frame period, and to apply a second sensing signal to the plurality of dummy pixels in a second period after the first period within the blank period.

This invention discloses a temporal confidence-based dynamic target image recognition method mounted on a sight, specifically relating to the field of computer vision technology. It achieves label-free automatic calibration of the reference benchmark by constructing a normalized virtual pixel coordinate system; it employs a spatiotemporal dual-path parallel architecture to extract target points and calculate semantic matching scores; it establishes a target state monitoring sequence and constructs a temporal confidence evolution model; when encountering instantaneous physical occlusion, it performs nonlinear confidence decay and combines state prediction to maintain tracking, effectively avoiding tracking link interruptions; it extracts the elliptical constraint parameters of the reference image in real time, dynamically updates the homography mapping matrix, compensates for perspective projection distortion of the imaging surface caused by high-dynamic transient disturbances, and achieves sub-pixel-level spatial accuracy correction mapping. This invention solves the technical problems of target recognition interruption and large spatial mapping deviation caused by jitter distortion and short-term occlusion in high-dynamic image acquisition environments, improving the continuity of target recognition.

The invention relates to an explosive sound signal real-time detection and positioning method, belongs to the technical field of explosive sound signal positioning, and solves the technical problems that the explosive sound signal positioning is low in multi-event positioning accuracy, needs subsequent processing, and cannot realize detection and positioning of superposition events through automatic processing. The method comprises the steps of performing regional grid division on an explosion event and an acoustic measuring point station; converting the theoretical explosion signal propagation time into a theoretical sampling sequence number label library; calculating the maximum superposition peak value of each grid point according to the real-time data flow collected by the acoustic measuring point station, and generating a real-time virtual pixel distribution diagram; and judging the occurrence position and time of an explosion event at a certain grid point. The system is used for monitoring chemical engineering, petroleum and natural gas abnormal events and accurately positioning explosion positions.

The invention provides an underwater environment three-dimensional reconstruction pixel point mapping relation construction method and a reconstruction method. The method comprises the following steps: acquiring parameters of a physical camera, a refraction coefficient of water in a reconstruction water area, a distance between the physical camera and the inner surface of a visual light-transmitting plate, the thickness of the visual light-transmitting plate and a refraction coefficient of the visual light-transmitting plate; obtaining a virtual pixel point position of the imaging plane of the virtual camera; analyzing to obtain a virtual object point position Pw; calculating a refracted light path after the virtual object point passes through the visible light-transmitting plate; calculating the physical pixel point position Pp of each virtual object point on the imaging plane of the physical camera according to the parameters of the physical camera and the refraction path; and establishing a mapping relation table according to the corresponding relation between the virtual pixel point position {Pv} and the physical pixel point position {Pp}. By calculating the position relation between the physical pixel points on the physical camera and the virtual pixel points on the virtual camera, the position relation of each pixel is established into a mapping relation table, so that the image of the physical camera can be corrected underwater in real time, and the distortion of the image is eliminated.

A display device comprising pixel circuits included in the display area, the pixel circuits including light emitting elements with grayscales corresponding to data input from the outside, a dummy pixel circuit included in the non-display area, the dummy pixel circuit including a dummy light emitting element and a dummy driving transistor, a sensing unit for inputting, to the dummy pixel circuit, a test data signal for sensing an output signal corresponding to predetermined test data for each predetermined time, and then performing an operation of generating compensation information for compensating for degradation according to a driving time of at least one of the light emitting element and the driving transistor based on the output signal output from the dummy pixel circuit, and a timing controller for accumulating and storing the compensation information, and generating compensated data by compensating for the data input from the outside.

The application provides a TFT back plate for improving the ashing of electronic paper frame and a preparation method thereof. The TFT back plate comprises a display area provided with a plurality of normal pixels and a boundary area provided with a plurality of virtual pixels. The plurality of normal pixels and virtual pixels are arranged in a matrix. The gate layer of each row of normal pixels is electrically connected with a horizontal scanning line. The source layer of each column of normal pixels is electrically connected with a vertical scanning line. The virtual pixel comprises a virtual pixel TFT and a virtual common electrode layer. The virtual pixel TFT is arranged in an insulated and spaced manner with the horizontal scanning line and / or the vertical scanning line. An electronic film paper is arranged above the virtual pixel. The common electrode layer of the electronic film paper is electrically connected with the virtual common electrode layer. The pixel electrode layer of the electronic film paper is electrically connected with a driving IC through a boundary line. The virtual pixel TFT is arranged in an insulated and spaced manner with the horizontal scanning line and / or the vertical scanning line, so that the horizontal scanning line and / or the vertical scanning line is prevented from controlling the virtual pixel TFT to be turned on or off, thereby avoiding the ashing.

A time-division multiplexed projection display is pixel shifted to produce an increased perceived display resolution. A polarizing beam splitter (PBS) divides input unpolarized display light into two orthogonal linear polarizations and directs them to two PBS arms. The PBS arms act to shift the light in synchronization with the time-multiplexed display such that a single pixel of the light engine providing the display light is converted into two or four virtual pixels, effectively increasing the perceived display resolution relative to the native resolution of the light engine. The PBS combines the light from both PBS arms into a single, unpolarized output that may then be projected into a lens or a waveguide incoupler to enable the light to propagate through a waveguide for display at a user's eye.

A display device includes a substrate in which a display area including first and second areas and a non-display area surrounding a side of the display area are defined, a sub-pixel in the display area, a dummy pixel in the non-display area, and a repair line provided to the display area and the non-display area. The repair line includes first and second repair lines arranged between first and second pixel rows in the first area. The dummy pixel includes first and second dummy pixels arranged corresponding to the first and second pixel rows, respectively. Each of the first and second dummy pixels includes a dummy pixel circuit and a first capacitor. The first capacitor of each of the first and second dummy pixels is between the dummy pixel circuit of the first dummy pixel and the dummy pixel circuit of the second dummy pixel.

The invention provides a display panel and a display device, relates to the technical field of display, and aims to solve the problem of non-uniform display of edge positions due to different solvent evaporation rates of light-emitting materials at all positions of a display panel in the related technology. The display panel is provided with a display area and a non-display area located on the edge of the display area, the display panel comprises a substrate and a pixel definition layer arranged on the substrate, the pixel definition layer comprises a plurality of first openings located in the display area and at least one second opening located in the non-display area, and the first openings are located in the non-display area. Display pixels are arranged in the first openings, virtual pixels are arranged in the second openings, the depth of the second openings is gradually increased from the part close to the display area to the part far away from the display area, and on the basis, the depth of the virtual pixels is gradually increased from the part close to the display area to the part far away from the display area.

The invention provides an array substrate, a display panel and a display device, and the array substrate comprises a substrate which is provided with a display area and a non-display area, and the non-display area comprises a gate drive circuit area and a virtual pixel area located between the gate drive circuit area and the display area; the first conducting layer is located on the substrate, the first conducting layer comprises a grid line and a grid electrode which are located in the display area, and the grid line extends to the virtual pixel area; the second conducting layer is located on the side, away from the substrate, of the first conducting layer, the second conducting layer comprises a data line, a source electrode, a drain electrode and a dummy data line, the data line, the source electrode and the drain electrode are located in the display area, the dummy data line is located in the dummy pixel area, and the data line and the dummy data line intersect with the grid line; the semiconductor layer is located between the second conductive layer and the first conductive layer, and the semiconductor layer comprises a first active layer located in the display area and a second active layer located in the virtual pixel area; at the intersection points of the adjacent data lines, the dummy data lines and the grid lines, the width of the first active layer in the extending direction of the grid lines is larger than that of the second active layer in the extending direction of the grid lines.

The application relates to a white field chroma compensation coefficient prediction, optimization method and LED screen display control method, relates to the technical field of LED display, and discloses a white field chroma compensation coefficient prediction, optimization method and LED screen display control method. The existing white field color deviation correction technology has the problems of display difference between real pixels and virtual pixels, optical drift under long-term operation, high cost and inaccurate color deviation repair. The chroma distribution of each region in the white field display state is measured and analyzed, the compensation function type is selected according to the region characteristics, the internal parameters of the corresponding compensation function are judged according to the color deviation type, and then the local chroma compensation model is established; the compensation coefficient is optimized based on the feedback control closed-loop optimization method, the chroma compensation model continuously matches the actual optical state, and self-learning type display consistency control is realized; the display control of the LED screen is chroma compensation in the signal domain, and no additional hardware current adjustment module is needed. The method disclosed by the application is suitable for white field color deviation correction in Micro / Mini and other LED display systems.

This application provides a display device including a display panel and a driving circuit. The display panel includes n pixel rows, n detection units, and n virtual pixels. The driving circuit outputs corresponding scan signals to the n pixel rows to perform row-by-row scanning. When a corresponding pixel row is scanned, each detection unit, under the control of the scan signal in the corresponding scan line, charges the corresponding virtual pixel and detects the temperature and charging rate of the corresponding virtual pixel, and outputs corresponding temperature detection signals and charging rate detection signals to the driving circuit. Based on the temperature detection signals and charging rate detection signals output by the n detection units, the driving circuit controls the turn-on voltage output to each pixel row, so that the range of charging rates of the n virtual pixels is less than or equal to a preset range threshold. The display device can significantly improve the display uniformity in the vertical direction.

The utility model provides a display panel and a display device.The display panel comprises a display area and a non-display area arranged on the periphery of the display area, the non-display area comprises a virtual pixel area adjacent to the display area, the display panel further comprises a light-emitting layer, and the light-emitting layer comprises a plurality of light-emitting parts and a plurality of virtual light-emitting parts; the thickness of the virtual light-emitting part of the virtual pixel area is smaller than that of the light-emitting part of the display area, so that the difference between the saturated vapor pressure at the edge of the display area and the saturated vapor pressure in the middle of the display area in the drying process is reduced, and the difference value between the thickness of the light-emitting part at the edge of the display area and the thickness of the light-emitting part in the middle of the display area can be reduced; therefore, the brightness uniformity of the display panel can be improved, and the process yield of the display panel is further improved.

The application relates to a 3D LED display device achieving resolution lossless display, which comprises a device body, the device body comprises an LED chip unit, an LED driving PCB board and an LED display module, the LED display module comprises a plurality of RGB light emitting pixel units, the device body further comprises a light processing layer located on the LED display module, the light processing layer is used for presenting each RGB light emitting pixel unit as two columns of virtual RGB pixels, the device body further comprises a polarization structure layer located on the light processing layer and a haze layer located on the polarization structure layer, the polarization structure layer comprises a circular polarization layer located on the light processing layer and a plurality of 1 / 2 phase difference layers distributed on the circular polarization layer, each 1 / 2 phase difference layer is located above one virtual RGB pixel of each RGB light emitting pixel unit, the structure can make the resolution received by two eyes have no loss relative to the original resolution, the definition is improved, and the 3D LED display device has low manufacturing cost.

A display panel, the display panel comprising a virtual driving transistor (81). A gate of the virtual driving transistor (81) and a virtual common electrode (41) input a reference signal (Vcom), the virtual common electrode (41) is connected to a source of the virtual driving transistor (81), and a virtual pixel electrode (31) is electrically connected to the source of the virtual driving transistor (81), equivalent to the virtual pixel electrode (31) receiving the reference signal (Vcom). Therefore, there is no parasitic capacitance between the virtual pixel electrode (31) and the virtual common electrode (41), the virtual driving transistor (81) is turned on, and the reference signal (Vcom) is written into a suspended drain of the virtual driving transistor (81). Thus, both the drain and the gate of the virtual driving transistor (81) are reference signals (Vcom), and there is no parasitic capacitance between the drain and the gate of the virtual driving transistor (81).

A display device includes a substrate in which a display area including a first area and a second area and a non-display area surrounding at least one side of the display area are defined; a sub-pixel arranged in the display area; a dummy pixel arranged in the non-display area; and a repair line commonly provided to the display area and the non-display area and extending in a first direction. The non-display area includes a first non-display area adjacent to the first area and a second non-display area adjacent to the second area. The repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row of the substrate in the first area. The first repair line and the second repair line face each other in a second direction crossing the first direction.

Embodiments of the present application provide a pixel structure, a display panel and a display device, and belong to the technical field of display. The pixel structure comprises a plurality of sub-pixels which are located in a virtual quadrangle and are separated from each other. In the same virtual quadrangle, the plurality of sub-pixels are arranged in a first direction in sequence, and the plurality of sub-pixels completely fill the virtual quadrangle. The virtual quadrangle is a virtual pixel area in the pixel structure. Through the pixel structure, the display panel and the display device provided by the embodiments of the present application, the pixel aperture ratio can be increased, the pixel power consumption can be reduced, and the pixel life can be prolonged.

This application provides a display panel and a display device. The display panel includes a display area and a non-display area located on at least one side of the display area. The display area is provided with a plurality of light-emitting pixel units, and the non-display area is provided with at least one virtual pixel unit. The area of ​​the virtual pixel unit is larger than the area of ​​the light-emitting pixel units in the display area, and the maximum film-forming height difference of the virtual pixel units is greater than the maximum film-forming height difference of the light-emitting pixel units. Thus, when inkjet printing is used to form a film-forming light-emitting material layer, the area forming a large area of ​​virtual pixel units can accommodate more printing ink, thereby creating a large solvent atmosphere in the area to eliminate the influence of uneven vacuum drying, and thus improving the uniformity of film formation of the light-emitting pixel units in the display area.

A display panel includes a plurality of rows of pixel circuits, one or more rows of first dummy pixel circuits, a plurality of cascaded scanning driving units and at least one first dummy scanning driving unit. The plurality of rows of pixel circuits are arranged in a first direction. The one or more rows of first dummy pixel circuits are located on a side of the plurality of rows of pixel circuits in the first direction. Each scanning driving unit is configured to transmit a scanning signal to at least one row of pixel circuits. A first dummy scanning driving unit is cascaded to a first stage of scanning driving unit among the plurality of scanning driving units, and is configured to transmit; a cascade signal to the first stage of scanning driving unit; and transmit scanning signals to at least one row of first dummy pixel circuits.

A display panel includes: first to N-th active pixels, N being an integer greater than 3; and a dummy pixel arranged adjacent to the N-th active pixel in a same pixel column, the dummy pixel including: a dummy driving transistor including a gate electrode connected to a first node, a first electrode connected to a data line configured to transmit a data voltage, and a second electrode connected to a second node; a plurality of dummy compensation transistors connected in parallel to each other between the first node and the second node; a dummy initialization transistor including a gate electrode configured to receive an initialization gate signal, a first electrode configured to receive an initialization voltage, and a second electrode connected to the first node; and a dummy storage capacitor including a first electrode configured to receive a first supply voltage and a second electrode connected to the first node.

A display device includes a substrate in which a display area including first and second areas and a non-display area surrounding at least one side of the display area are defined, a sub-pixel arranged in the display area, first and second dummy pixels arranged in the non-display area, and a repair line commonly provided to the display area and the non-display area and extending in a first direction. The non-display area includes a first non-display area and a second non-display area. The repair line includes a first repair line and a second repair line arranged between a first pixel row and a second pixel row in the first area. Each of the first and second dummy pixels includes a first capacitor electrically connected to a dummy pixel circuit. The first capacitor of the first dummy pixel and the first capacitor of the second dummy pixel have different sizes.

The disclosure provides a pixel array and a display device. The pixel array includes a plurality of sub-pixels, each of which has a virtual pixel center, the plurality of sub-pixels include first sub-pixels, second sub-pixels, and third sub-pixels; virtual centers of two first sub-pixels and two third sub-pixels are sequentially connected to form a second virtual quadrangle; a first virtual polygon includes four second virtual quadrangles in an array and sharing adjacent sides; and the first sub-pixels and the third sub-pixels are at vertex angles or sides of the first virtual polygon and are alternately on the vertex angles or the sides of the first virtual polygon along a clockwise direction; the first virtual polygon has a first virtual point, lines connecting the first virtual point and virtual centers of the four third sub-pixels on the first virtual polygon divide the first virtual polygon into four virtual isosceles trapezoids.

The invention discloses a display driving chip, a driving method thereof and a display device, and relates to the field of display. Detecting an external time sequence parameter of the input signal, and comparing the external time sequence parameter with a preset target safety time sequence parameter; real-time adjustment is carried out according to whether the number of effective pixel rows and / or columns of the external time sequence parameters is completely consistent with the number of pixel rows and / or columns of an effective display area of a display panel or not and whether a blanking period of the external time sequence parameters covers a virtual pixel area of the display panel or not, so that it is ensured that the virtual pixel area is not mistakenly activated; outputting a time sequence signal according to the adjusted external time sequence parameter; and judging whether the output time sequence corresponds to the period of the virtual pixel region or not, and if the output time sequence corresponds to the period of the virtual pixel region, prohibiting the output of an effective signal so as to ensure that the virtual pixel region is kept in an inactive state. According to the invention, the dual guarantee of avoiding false activation of the virtual pixel region is realized by adjusting the external time sequence parameters and a physical disconnection mode.

This utility model discloses a non-rectangular light-emitting array and system. The light-emitting array includes: multiple physical pixel units, each arranged according to a preset non-rectangular pattern, each physical pixel unit including a controller and a light-emitting element connected to the controller; at least one virtual pixel unit, each virtual pixel unit arranged between or around the physical pixel units, each virtual pixel unit including a controller and not emitting light; wherein, the controllers in each physical pixel unit and each virtual pixel unit are sequentially connected in series to form a serial data link, so that each physical pixel unit and each virtual pixel unit constitutes a logically M-row N-column virtual rectangular array, where M and N are integers greater than 1; the data input terminal of at least one controller constitutes the data input terminal in the serial data link connected to an external control unit. Using the above scheme, a light-emitting control scheme for rectangular shapes can be reused, reducing resource waste and labor costs, and shortening the project development cycle.