51results about How to "Reduce pixel pitch" patented technology

Provided is a six-layer configuration image capture lens that is compact and has adequate light at F2 or less, and wherein all aberrations are effectually corrected. In order from the object side, the image capture lens is configured of a first lens having a positive refraction and with a convex face oriented toward the object side; a second lens having a negative refraction and with a concave face oriented toward the imaging side; a third lens having either a positive or a negative refraction; a fourth lens having a positive refraction; a fifth lens having a positive refraction and with a convex face oriented toward the imaging side; and a sixth lens having a negative refraction and with a concave face oriented toward the imaging side. The imaging side face of the sixth lens further comprises an aspherical face shape, has an inflection point in a location other than a point of intersection with the optical axis, and satisfies the following formulae: ? d1 > 50, and ? d2 = 30, wherein ? d1 is the Abbe's number of the first lens, and ? d2 is the Abbe's number of the second lens.

The invention discloses a pixel circuit and a displayer. According to the pixel circuit, the size of the pixel circuit is reduced, so that the distance between every two pixels is reduced, the number of the pixels contained in unit area is increased, and the display quality of an image is improved. The pixel circuit comprises a first pixel sub circuit, a second pixel sub circuit, an initializing module and a data voltage write-in module, wherein the initializing module and the data voltage write-in module are connected with the first pixel sub circuit and the second pixel sub circuit. The initializing module is connected with a reset signal end and a low potential end and used for initializing the first pixel sub circuit and the second pixel sub circuit under the control of a reset signal input by the reset signal end. The data voltage write-in module is connected with data voltage and a gate signal end and used for writing first data voltage in the first pixel sub circuit and the second pixel sub circuit under the control of a signal input by the gate signal end, compensating a driving module of the second pixel sub circuit, writing second data voltage in the first pixel sub circuit and compensating a driving module of the first pixel sub circuit.

The invention discloses a display and communication dual-purpose visible light module. The display and communication dual-purpose visible light module comprises an LED (Light Emitting Diode) dual-purpose module, which is taken as a visible light display light source and a transmitting terminal of a communication system; an LED dual-purpose module display control circuit, which is positioned at one side of the back face of the LED dual-purpose module and is used for controlling an LED array to implement a display function; and an LED dual-purpose module optical communication transmitting terminal circuit, which is positioned at the other side of the back face of the LED dual-purpose module and is used for controlling the LED array to implement the function of an optical communication transmitting terminal. The display and communication dual-purpose visible light module fills up requirements on the multichannel transmitting terminals of a full color array of a light source with the tiny size in the visible light communication system, and provides research and development direction of a small fine-pitch LED high-definition display screen, which integrates communication functions and is highly integrated.

The invention provides a pixel circuit. The pixel circuit comprises two sub-pixel circuits and a sixth switch unit, wherein the first end of the sixth switch unit is connected to a working voltage line, and the control end is connected to a first scanning signal line; each sub-pixel circuit comprises five switch units, a driving unit, an energy storing unit and an electroluminescent unit; a first switch unit, a third switch unit and a fourth switch unit of the first sub-pixel circuit share the scanning signal line with a first switch unit, a third switch unit and a fourth switch unit of a second sub-pixel circuit. By adopting the pixel circuit, the problem of non-uniform display brightness due to drifting of threshold voltage for driving a transistor is solved completely. Meanwhile, driving of two pixels is finished by using one compensating circuit, and two adjacent pixels share a plurality of signal lines, thereby reducing the quantity of signal lines for the pixel circuit in the display device, lowering the cost of an integrated circuit, reducing pixel distances and increasing the pixel density.

The invention provides a pixel structure and an OLED display panel containing the pixel structure. Each pixel unit comprises a first sub pixel, a second sub pixel and a third sub pixel, wherein the first sub pixel and the second sub pixel are arranged in one column (row), the third sub pixel is arranged in the other column (row), and the total size of the first sub pixel and the second sub pixel along the column (row) direction is larger than the size of the third sub pixel along the column (row) direction. The arrangement structures of the pixel units in the same row (column) are the same. The arrangement structure of each pixel unit after 180-degree turning along the row (column) direction is the same with the arrangement structure of the adjacent pixel unit in the same column (row). Byusing the pixel arrangement mode, the pixel spacing is reduced, the PPI is improved, and the difficulty of the evaporation mask making process and the evaporation process can be lowered.

The invention provides a pixel circuit which comprises two sub-pixel circuits. Each sub-pixel circuit comprises five switch units, a driving unit, an energy storage unit and an electroluminescence unit, and the first switch unit, the second switch unit and the fifth switch unit of the first sub-pixel circuit and the first switch unit, the second switch unit and the fifth switch unit of the second sub-pixel circuit share a scanning signal line. In the pixel circuit, working currents flowing through devices of the electroluminescence units are not influenced by the threshold voltage of corresponding driving transistors, and the problem that uneven display luminance is caused by threshold voltage drifting of the driving transistors is thoroughly solved. In the pixel circuit, driving of two pixels is completed through one compensating circuit, two adjacent pixels share a plurality of signal lines, the number of the signal lines, used in the pixel circuit, in the display device can be decreased, the cost of integration circuits can be reduced, the pixel distance can be decreased, and the pixel density can be increased.

The invention relates to an LED flat panel display unit with a drive control device, which has the advantages of extremely small LED pixel spacing, low cost and good control performance. In the technical scheme, the LED flat panel display unit is characterized by consisting of an upper insulating circuit substrate, a middle multi-level insulating circuit substrate and a lower insulating circuit substrate, wherein the upper insulating circuit substrate, the middle multi-level insulating circuit substrate and the lower insulating circuit substrate are compressed as a whole at a high temperature, and the outer surfaces of the upper insulating circuit substrate, the middle multi-level insulating circuit substrate and the lower insulating circuit substrate are respectively provided with epoxy resin or silicone resin filling cover. The invention also discloses a production method of the LED flat panel display unit with the drive control device.

The invention relates to an integrated LED (light emitting diode) display unit panel with a large viewing angle. The integrated LED display unit panel comprises an LED display module. A driving IC (integrated circuit) is welded on a driving circuit board, the back surface of a circuit board is connected with the driving circuit board through socket strips, and LED wafers are fixed on the front surface of the circuit board. The integrated LED display unit panel is characterized in that the integrated LED display unit panel further comprises transparent face masks and shading layers; air outlet holes are reserved at the positions, corresponding to the LED wafers, of the shading layers; the shading layers are connected with the front surface of the circuit board tightly; the transparent face masks are inserted into the LED wafers; and the back surfaces, away from the LED wafers, of the transparent face masks are connected with the shading layers tightly. The integrated LED display unit panel has the advantages of large viewing angle, high contrast, low light loss, low production cost and the like.

The invention provides a human eye tracking three-dimensional display device with high viewpoint density. The display device is composed of a 2D display panel, a first cylindrical lens grating, a scattering layer, a second cylindrical lens grating, an optical path switch, a first camera and a second camera. The first camera and the second camera are used for judging the position of a viewer. The 2D display panel provides a parallax composite image corresponding to a viewer location. The first cylindrical lens grating may narrow a parallax composite image on the 2D display panel to be imaged atthe scattering layer location for reducing pixel pitch. And the smaller pixel spacing is favorable for improving the viewpoint density. And the scattering layer is used for scattering the parallax composite image in the direction of the second cylindrical lens grating. And according to the position of the viewer, the optical path switch projects the parallax composite image to the area where theviewer is located by selecting part of the cylindrical lens on the second cylindrical lens grating. When the human eyes are located in the corresponding watching areas, the corresponding parallax images can be seen, and therefore stereoscopic vision is generated.

The invention discloses a pixel circuit and a displayer. According to the pixel circuit, the size of the pixel circuit is reduced, so that the distance between every pixels is reduced, the number of the pixels contained in unit area is increased, and the display quality of an image is improved. The pixel circuit comprises a first pixel sub circuit, a second pixel sub circuit, an initializing module and a data voltage write-in module, wherein the initializing module and the data voltage write-in module are connected with the first pixel sub circuit and the second pixel sub circuit. The initializing module is connected with a reset signal end and a low potential end and used for initializing the first pixel sub circuit and the second pixel sub circuit under the control of a reset signal input by the reset signal end. The data voltage write-in module is connected with data voltage and a gate signal end and used for writing first data voltage in the first pixel sub circuit under the control of a signal input by the gate signal end, compensating a driving module of the first pixel sub circuit, writing second data voltage in the second pixel sub circuit and compensating a driving module of the second pixel sub circuit.

The invention provides an active matrix panel, which comprises a plurality of scanning beams (2), a plurality of data lines (3), and a plurality of switch elements (4,5) separately connected with the scanning beams (2) and the data lines (3); the switch elements (4,5,44,45) separately comprises semiconductor films (13,54), gate insulating films (14,53) and gate electrodes (15,16,51,52). The lateral configuration space occupied by the two thin film transistors (TFT) can be reduced, thereupon, the pixels interval can be reduced, or the aperture ratio can be increased.

The invention provides a pixel circuit and a display device. The pixel circuit comprises two sub-pixel circuits. Each sub-pixel circuit comprises five switch units, a driving unit, an energy storage unit and an electroluminescence unit. The two sub-pixel circuits share the same data voltage wire and multiple scanning signal lines. According to the pixel circuit, working currents flowing through devices of the electroluminescence unit can be free of influence of a threshold voltage of a corresponding driving transistor, and therefore the problem of non-uniform display brightness caused by drift of the threshold voltage of the driving transistor is thoroughly solved. Meanwhile, a compensating circuit is adopted for driving two pixels, and the two adjacent pixels share multiple signal lines, so the number of the signal lines used for the pixel circuit in the display device can be reduced, the cost of an integrated circuit is lowered, the pixel distance is shortened, and the pixel density is increased.

The invention provides an LED integrated circuit module and an LED display screen using the LED integrated circuit module. The LED integrated circuit module comprises LED chips and circuit lead feet arranged on the edge of the LED integrated circuit module; the circuit lead feet are connected with each LED chip; the circuit lead feet arranged on the opposite two sides of the LED integrated circuit module are arranged in malpositions. The circuit lead feet arranged on the opposite two sides of the LED integrated circuit module provided in the invention are arranged in malpositions, thereby reducing the risk of short circuit of the two LED integrated circuit modules when the circuit lead feet are welded, enabling the spacing between the LED integrated circuit modules to be set more compactly, reducing the pixel spacing of the LED display module and improving the resolution ratio and display quality of the LED display module.

The invention relates to an AMOLED display manufacturing method and AMOLED display. Technically, the method comprises the following steps: preparing a phase change material layer and a light emitting layer on one side of a first substrate in sequence, followed by the covering and the laser processing of a mask pattern at the other side of the first substrate to obtain part A; preparing a film transistor, an anode and a hole layer on a second substrate in sequence to obtain part B; bonding the light emitting layer of part A and the hole layer of part B; and removing the first substrate and the phase change material layer, preparing in sequence an electron layer and a cathode at the position of the original phase change material layer, and then packaging for an AMOLED display. Through the use of a phase change material layer in the manufacturing process, it is possible to reduce the pixel pitch in the light emitting layer without changing other materials and steps to obtain an AMOLED display with a high PPI.

The invention relates to a system and a method for driving a display panel. The display panel (such as a liquid crystal on a silicon (LCoS) panel) is in a multi-branch pixel structure. Each pixel unit of the display panel comprises at least two branches. The display panel comprises a group of sub-data lines corresponding to each row of pixel units, and the sub-data lines are respectively coupled to the two branches. According to an embodiment, the two branches are in an access mode and a display mode in order, thereby increasing the operating speed and reducing the coupling effect. According to another embodiment, a multiplexer multiplexes the two sub-data lines positioned between adjacent pixel units, and the multiplexing output is coupled to a shared data line which is shared by adjacent pixel units, thereby reducing the pixel interval.

The invention provides an imaging array of pixel units based on a composite dielectric grid structure and an exposure operation method of the imaging array. The pixel units adopt light-sensitive detectors in composite dielectric grid structures; a source region and a drain region of each pixel unit are symmetrical; a P-type substrate (1) is formed by injection; an N-type injection region is arranged between every two adjacent pixel units to form a pixel shared drain electrode (2) or a source electrode (7); the pixel units are mutually connected in series by the N-type injection regions to form lines; two selective switch transistors are arranged at the two ends of each line (BL); drain electrode directions of grid control ports of the transistors are SD; source electrode directions are SS; transmission of signals of each line and selective on of each line are controlled by controlling switches of the selective transistors; each row of different pixels in each line connects grid electrodes (3) with a word line (WL); and each WL simultaneously controls the grid electrodes of each row of pixels.

The invention discloses an integrated packaging LED display panel based on chip stacking. The display panel comprises an integrated packaging circuit board, and the integrated packaging circuit boardis provided with at least two integrated packaging lamp beads. The integrated packaging lamp bead without the support pin comprises a driving IC bare crystal chip, an LED bare crystal chip and a packaging colloid. The LED bare crystal chip is stacked on the upper surface of the driving IC bare crystal chip and is electrically connected with the driving IC bare crystal chip; after the driving IC bare crystal chip is electrically connected with the integrated packaging circuit board, the packaging colloid packages the driving IC bare crystal chip and the LED bare crystal chip. According to the integrated packaging LED display panel based on chip stacking, the multifunctional high integration is achieved, support-pin-free lamp driving is integrated with pixel integrated packaging, and the effects of high lightness, thinness, structure-free mounting, high product quality, high display pixel density and high display effect are achieved.

The invention relates to the technical field of display devices and discloses a rotary display screen. The rotary display screen comprises a motor, a fixing body and a rotary frame installed on the fixing body. The rotary frame comprises a plurality of LED modules. Each LED module comprises a plurality of LED elements. The arrangement height of the LED elements of at least one first LED module is different from that of the LED elements of at least one second LED module. According to the rotary display screen, the arrangement modes of the LED elements in the LED modules are changed so that combinations of different residual images formed by height differences of the elements can be fully used to fill gaps between the elements, the pixel pitch of a displayed image can be effectively reduced, soft images with the high resolution ratio can be displayed under the condition that the number of the LED elements is not increased, and therefore the problem that the resolution ratio of the rotary display screen is limited to the installation gaps of the elements is solved.

The invention provides a pixel driving circuit. The pixel driving circuit is characterized in that each input module is connected with a data line, a corresponding scanning line and a corresponding first node, and the data line and the first node are connected under the control of the scanning line; a control end of a driving module is connected with a corresponding first node, a first end and a second end are connected with a corresponding second node and a first end of a corresponding light emitting module, and the second node and the first end of the light emitting module are conducted under the control of the first node; a first reset module is connected with a first power line, a first control line and all second nodes, so that the first power line and the second nodes are conducted independently under the control of the first control line; a control module is connected with all first nodes, all third nodes and a third control line, so that the third nodes and the corresponding first nodes are conducted independently under the control of the third control line; a second reset module is connected with a third power line, a second control line and all the third nodes, so that the third power line and the third nodes are conducted under the control of the second control line; a first end and a second end of a memory module are connected with the corresponding second node and the corresponding third node respectively, so that charge and discharge are performed under the control of the second node and the third node, and voltage difference of the second node and the third node is kept when the third node is in suspension joint.

The invention relates to a silica-based unit board of an LED display screen. The silica-based unit board comprises an LED light emitting unit, a silica-based board unit, a circuit board unit and an electronic element unit. The LED light emitting unit is connected on the upper surface of the silica-based board unit, the lower surface of the silica-based board unit is connected with the upper surface of the circuit board unit, and the lower surface of the circuit board unit is connected with the electronic element unit. The LED light emitting unit is formed by LED pixel points which are distanced by 0.1-0.5mm, and each LED pixel point is composed of 1-3 LED light emitting individuals which are LED flip chips. The silica-based unit board of the LED display has the advantages of no packaging requirement, convenience in manufacturing, good radiating effect, small pixel distance and the like.

Various examples of a lighting component and lighting device are described. In one aspect, a lighting component includes a supporting base and a LED die set. The supporting base includes a supporting surface and the LED die set includes at least four LED dies disposed on the supporting surface in a predefined arrangement. In another aspect, a lighting device includes a plurality of lighting components as described above that are arranged in a matrix. Therefore, each LED die of each lighting component defines a pixel, and can jointly define another pixel with one or more neighboring LED dies of one or more neighboring lighting components. Pixel pitch between pixels can thus be reduced.

The invention discloses an LED chip package and an LED display. The LED chip package comprises M*N pixel units, each pixel unit forms an M*N array, each pixel unit comprises three laterally distributed diodes, three diodes include a red diode, a green diode and a blue diode. Wherein the first terminal of each diode of the ith row is connected to the ith first common package pin; The second terminal of each diode in the j-th column is connected with the j-th common package pin; M and N are integers of not less than 2, i belongs to [1, M], j belongs to [1, 3N]. The present application reduces the average number of pins per pixel, thereby reducing the pixel spacing, facilitating improved resolution and display effect of an LED display, and reducing the number of pins is conducive to reducingpackage cost.

The invention relates to an LED (light emitting diode) display unit panel with shading films. The unit panel comprises an LED display module, transparent face masks and shading layers. The transparent masks are transparent packaging rubber colloids, and LED wafers in the LED display module are inserted in the transparent packaging rubber colloids. The shading layers comprise first polarizing films and second polarizing films. Windows are arranged at the positions, corresponding to the LED wafers, of the first polarizing films and the second polarizing films. The first polarizing films and the second polarizing films are positioned between the front surface of a circuit board and the back surfaces of the transparent packaging rubber colloids. The polarizing directions of the first polarizing films and the second polarizing films are perpendicular to each other. Otherwise, the first polarizing films are positioned between the front surface of the circuit board and the back surfaces of the transparent packaging rubber colloids, windows are arranged at the positions of the first polarizing films corresponding to the LED wafers, and the second polarizing films are adhered to the front surfaces of the transparent packaging rubber colloids. The LED display unit panel has high contrast; and meanwhile, conventional shading face masks and punching process are omitted, production procedures are simplified, cost is reduced, and pixel separation distance is further shortened.

The invention discloses a display module capable of being spliced, a preparation method and a display device.The display module comprises a light-transmitting carrier substrate, a circuit board, a driving module and a plurality of LED light-emitting wafers, the LED light-emitting wafers and the driving module are arranged on the two opposite sides of the circuit board respectively, in this way, the LED light-emitting wafers are arranged on the side, provided with the LED light-emitting wafers, of the circuit board, and the LED light-emitting wafers are arranged on the side, provided with the LED light-emitting wafers, of the circuit board; according to the LED display module, an area for fixing the driving module does not need to be arranged, that is, the edge of the side does not have an area without the LED light-emitting wafer, so that in the display screen formed by splicing, the splicing seam between the two spliced LED display modules does not have an area without the LED light-emitting wafer, the pixel pitch at the splicing seam is reduced, the resolution ratio of the display screen is improved, and the display effect is improved. And the display effect is optimized. The LED light-emitting wafer is transferred to the wafer fixing structure on the carrier substrate in advance, and then the carrier substrate carrying the LED light-emitting wafer is laminated with the circuit board, so that the efficiency and the position precision of fixing the LED light-emitting wafer on the circuit board are improved.

The invention discloses a processing method of a structure for reducing a pixel spacing vision influence of a liquid crystal display screen. Multiple liquid pixel modules are installed between two backing plates, a frame is arranged around each pixel module, each frame is processed to be an inclined plane of which the opening formed in the outer side is larger than the opening formed in the backlight side, the included angle of each inclined plane is 45 degrees, and the inclined planes are processed to be irregularly concave and convex. According to the processing method of the structure for reducing the pixel spacing vision influence of the liquid crystal display screen, light transmitted through liquid crystals is in the divergent state, and a person visually feels that the pixel spacing is decreased; meanwhile, the inclined planes are irregularly concave and convex, light reflected by the frame inclined planes is subjected to diffuse reflection, and the vertigo situation cannot occur.

The invention discloses a structure for reducing the visual influence of the pixel pitch of a liquid crystal display. The structure comprises two layers of backboards, and a plurality of liquid crystal pixel modules are arranged between the two layers of backboards. A frame of each liquid crystal pixel module is a slope, wherein an opening in the outer side is large, an opening in the backlight side is small, and the slope is in an irregular concave-convex shape. According to the structure, light transmitted through liquid crystals is in a divergent state, and a user can visually feel that the pixel pitch is reduced; meanwhile, the slopes are in an irregular concave-convex shape, so that light reflected through the frame slopes is in a diffuse reflection state, and dizziness is avoided.

The embodiment of the invention provides a light-emitting diode chip and a display device. The light-emitting diode chip includes a substrate, a light-emitting structure located on one side of the substrate, a first electrode and a second electrode located on the side, away from the substrate, of the light-emitting structure. The first electrode and the second electrode are connected with the light-emitting structure, and the light-emitting structure is configured to generate light under the voltage difference effect of the first electrode and the second electrode; the light-emitting center of the light-emitting diode chip has a preset offset relative to the geometric center of the substrate, and the light-emitting center of the light-emitting diode chip is the geometric center of the orthographic projection of the light-emitting area of the light-emitting structure on the substrate. According to the technical scheme, when the LED chips are arranged on the back plate, the light-emitting centers of the sub-pixels in the pixels can be more concentrated, the light-emitting areas of the pixels are more concentrated, the visual difference is reduced, and the display effect is improved; in addition, the pixel pitch can be reduced, and the resolution of the display device is improved.

The invention provides an OLED pixel structure and a display device. The OLED pixel structure comprises a plurality of pixel units distributed in an array, and each pixel unit comprises a power supplyunit, a driving signal writing unit and a driving unit. The driving unit is connected with the driving signal writing unit and the power supply unit, stores a driving signal written by the driving signal writing unit, and generates a driving current matched with the driving signal by using a power supply signal provided by the power supply unit according to the driving signal so as to drive the light emitting diode. A first node metal wire of the driving unit, which is connected with the driving signal writing unit, is connected with a semiconductor layer of a next-stage pixel unit and is matched with a next-stage light-emitting enable signal wire of the next-stage pixel unit to form an error compensation unit. Therefore, an error of writing a driving signal by the driving signal writingunit is eliminated. In this way, compensation errors in the threshold voltage drift compensation process are avoided.

The invention provides a pixel driving circuit, a display device and a pixel driving method, and relates to the technical field of display devices. The circuit comprises a first switch sub-circuit, asecond switch sub-circuit, a first inverter, a second inverter and a storage sub-circuit; the control end and the first end of the first switch sub-circuit are respectively configured to be electrically connected with a gate signal line and a data signal line; the first control end of the storage sub-circuit is directly and electrically connected with the second end of the first switch sub-circuit, the second control end of the storage sub-circuit is electrically connected with the second node, and the second switch sub-circuit is connected with the second phase inverter in series. According to the embodiment of the invention, the technical problem of complex operation caused by time sequence optimization in the prior art can be solved, and the delay of pixel charging by the data signal isreduced, so the pixel charging speed of a product is improved. Meanwhile, according to the embodiment of the invention, the wiring space can be saved in layout design of the display device, the reduction of pixel spacing is facilitated, and the PPI of a product is improved.