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42results about How to "Reduce pixel area" patented technology
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Display device and electronic equiipment
InactiveUS20080030437A1Correction of mobilityMaintaining light emissionElectrical apparatusStatic indicating devicesControl signalDisplay device
A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of scanning line, columns of signal lines, pixels in a matrix state arranged at portions where scanning lines and signal lines cross each other and power supply lines arranged corresponding to respective rows of pixels. The driving unit includes a main scanner performing line-sequential scanning to pixels by each row by supplying a control signal to each scanning line sequentially, a power supply scanner supplying a power supply voltage which is switched to a first potential and a second potential to each power supply line so as to correspond to the line-sequential scanning, and a signal selector supplying a signal potential and a reference potential to be video signal to columns of signal lines so as to correspond to the line-sequential scanning.
Owner:SONY CORP
Display device, driving method thereof, and electronic apparatus
ActiveUS20080049007A1Accurate settingCorrection of mobilityElectrical apparatusElectroluminescent light sourcesDriving currentDisplay device
A display device includes a pixel array unit and a driver unit. A sampling transistor samples a signal potential to hold the signal potential in a holding capacitor. A driver transistor flows a drive current to a light emitting element in accordance with the signal potential held. A power supply scanner in the driver unit changes a power supply line from a first potential to a second potential before the sampling transistor samples the signal potential. A main scanner in the driver unit makes the sampling transistor conductive to apply a reference potential from the signal line to the gate of the driver transistor and to set the source of the driver transistor to a second potential. The power supply scanner changes the power supply line from the second potential to the first potential to hold a voltage corresponding to a threshold voltage off the driver transistor in the holding capacitor.
Owner:JOLED INC
Pixel circuit, display device, and method of driving pixel circuit
InactiveUS20070052644A1Without luminance deteriorationImprove uniformityTransistorElectroluminescent light sourcesReference currentDisplay device
A pixel circuit, a display device, and a method of driving a pixel circuit able to obtain a source-follower output without luminance deterioration even when the current-voltage characteristic of a light emitting element changes due to aging, making a source-follower circuit of n-channel transistors possible, and in addition able to display uniform and high quality images not without regard to variations of threshold values and mobilities of the active elements inside pixels, wherein a capacitor C111 is connected between a gate and a source of a TFT 111, the source side of the TFT 111 is connected to a fixed potential (GND) through a TFT 114, a predetermined reference current Iref is supplied to the source of the TFT 111 with a predetermined timing, a voltage corresponding to the reference current Iref is held, and an input signal voltage centered about the voltage is coupled, whereby an EL light emitting element 19 is driven centered about the center value of variation of the mobilities.
Owner:SONY CORP
Deformed display panel and display device
ActiveCN107170364AGood displayAvoid rule dark areasIdentification meansDisplay deviceComputer science
According to the embodiment, the invention discloses a deformed display panel and a display device. A marginal display area of the deformed display panel comprises at least one curved display boundary; the marginal display area comprises at least one first type of pixel units; the first type of pixel units comprise a first margin and a second margin; the first margin is represented as a curve; the first type of pixel units at least include a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit; the green sub-pixel unit, the green sub-pixel unit and the blue sub-pixel unit are identical in pixel area; or the green sub-pixel unit is greater than the red sub-pixel unit and the blue sub-pixel unit in pixel area. In conclusion, the first margin of the first type of pixel units, which is represented as the curve, is matched with the curved display boundary, so that a good marginal display effect of the deformed display panel is guaranteed; by arranging the three sub-pixels which are identical in area, display color is guaranteed; and by virtue of the green sub-pixel which is relatively large in area, display brightness is guaranteed.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Display device and driving method thereof
ActiveCN104570469AIncrease lighting brightnessIncrease display resolutionStatic indicating devicesNon-linear opticsComputer moduleDisplay device
The invention provides a display device and a driving method thereof, relating to the technical field of display, and solving the problem that high resolution ratio of the conventional display panel is difficultly realized. The display device comprises a display panel, a first driver module, a second driver module, and an optical modulator positioned on the light emergent side of the display panel; multiple prism structures are formed between the display panel and the optical modulator; the pixels comprise n virtual pixels; the optical modulation unit comprises n optical modulation areas which correspond to the virtual pixels; a frame picture comprises n sub-frame pictures; the first driver module is used for driving the display panel to sequentially display n continuous sub-frame pictures in the frame picture; the second driver module is used for driving the n optical modulation areas of the optical modulation unit to be sequentially light-transmitting areas in the n sub-frame pictures, and other (n-1) optical modulation areas are shading areas. Moreover, the optical modulator reflects one part of light rays in the shading areas to enter the prism structures, so that the one part of light rays can be emitted from the light-transmitting areas.
Owner:BOE TECH GRP CO LTD
Display device and driving method thereof
InactiveCN104599604AIncrease display resolutionIncrease visual display resolutionStatic indicating devicesNon-linear opticsDisplay deviceEngineering
The invention provides a display device and a driving method thereof, relates to the technical field of display, and solves the problem that the conventional display panel is difficult to realize high resolution by changing a base plate. The display device comprises a display panel, a light modulator, a first driving module and a second driving module, wherein the display panel comprises a plurality of pixels; each pixel comprises n virtual pixels; the light modulator is arranged on the light outlet side of the display panel, and comprises a plurality of light modulating units corresponding to the pixels; each light modulating unit comprises n light modulating areas corresponding to the virtual pixels respectively; a one-frame image comprises n sub-frame images; the first driving module is used for driving the display panel to sequentially display the continuous n sub-frame images in the one-frame image; the second driving module is used for driving the n light modulating areas of the light modulating unit to be light transmitting areas in n sub-frame images sequentially and for driving the other (n-1) light modulating areas to be light shading areas, wherein n is a positive integer greater than or equal to 2.
Owner:BOE TECH GRP CO LTD
Display apparatus
ActiveUS20080129660A1Quality improvementLarge area of pixelStatic indicating devicesDigital storageShift registerControl signal
Disclosed herein is a display apparatus including: a pixel array; and a driver configured to drive the pixel array. The pixel array including rows of scanning lines, columns of signal lines, a matrix of pixels disposed at crossings of the scanning lines and the signal lines, and feeding lines associated with respective rows of the pixels, the pixels including respective sampling transistors having respective gates connected to the scanning lines, the driver including a main scanner configured to supply control signals to the scanning lines, the main scanner including a shift register, output buffers connected respectively between the shift register and the scanning lines, and a pulse power supply configured to supply power supply pulses, each having a predetermined pulse duration, to the output buffers, wherein the main scanner outputs power supply pulses supplied from the pulse power supply as the control signals to the respective scanning lines in response to a shift pulse output from the shift register.
Owner:JOLED INC
Flat panel display with improved white balance
ActiveUS7285902B2Reduce pixel areaReduce areaTransistorDischarge tube luminescnet screensEngineeringFlat panel
Disclosed is a flat panel display capable of enhancing a white balance by making a doping concentration or shape and size of drain offset regions of driving transistors different, in R, G and B unit pixels of each pixel. A flat panel display, comprises a plurality of pixels, where each of pixels including R, G and B unit pixels to embody red (R), green (G) and blue (B) colors, respectively. Each of the unit pixels includes a transistor with source / drain regions. Transistors of at least two unit pixels of the R, G and B unit pixels have drain regions of different geometric structures. In each unit pixel, a resistance value of the drain region of the transistor to drive a light-emitting device having the highest luminous efficiency among the transistors is higher than that of the drain region of a transistor to drive the light-emitting device having a relatively low luminous efficiency.
Owner:SAMSUNG DISPLAY CO LTD
Organic light emitting display device, organic light emitting display, and method for reducing leakage current
InactiveCN104424880AReduce leakage currentReduce in quantityStatic indicating devicesImage resolutionDisplay device
The invention discloses an organic light emitting display device, an organic light emitting display, and a method for reducing leakage current. The display comprises a plurality of display devices. The device comprises a plurality of sub pixel circuit units of which each is connected with a first TFT, the gates of the first TFTs are connected with a GATE line, and a first electrode of each first TFT is connected with the corresponding sub pixel circuit unit. Each organic light emitting display device comprises a second TFT of which the gate is connected with a GATE line, a first electrode is connected with a second electrode of each first TFT, and a second electrode is connected with a voltage V0. By configuring the TFTs between the pixel circuit and the voltage V0, the leakage current of the pixel circuit is reduced. Apart from the first TFTs, the TFTs of other levels are shared by all sub pixels belonging to the same pixel, which greatly reduces the number of TFTs, reduces the pixel area occupied by TFTs, can promote the PPI to meet the demands of PPT products, realizes display with higher-resolution, and enhances the quality of the display.
Owner:KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
Pixel structure, array substrate and display panel
ActiveCN111221189AEliminate voltage differencePrevent dumpingSolid-state devicesNon-linear opticsLiquid-crystal displayDisplay device
The invention discloses a pixel structure, an array substrate and a display panel. The pixel structure comprises a plurality of pixel areas distributed in an array mode and pixel electrodes corresponding to the pixel areas in a one-to-one mode. Each pixel electrode comprises a first pixel electrode and a second pixel electrode which are spaced, and a wiring area is arranged between every two adjacent rows of pixel areas. A large distance is provided by utilizing the wiring area; the liquid crystal display panel and the display device have the advantages that voltage difference between upper and lower rows of pixel electrodes can be eliminated, liquid crystal toppling at junctions of two adjacent rows of pixel regions due to influence of the voltage difference can be prevented, dark fringesat junctions of the two adjacent rows of pixel regions can be prevented, extra spacer regions do not need to be arranged between the two adjacent rows of pixel regions, and accordingly the pixel aperture ratio can be increased.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Display device
ActiveUS20150348489A1Increase brightnessTotal current dropCathode-ray tube indicatorsInput/output processes for data processingElectrical polarityDisplay device
A display device includes an image display panel and a control device. The image display panel includes first sub-pixels, second sub-pixels, third sub-pixels, and fourth sub-pixels in which a specified sub-pixel column including the third sub-pixels and the fourth sub-pixels and at least one other sub-pixel column arranged next to the specified sub-pixel column are periodically arranged. The control device performs column inversion driving to apply a voltage having the same polarity to signal lines of a first specified sub-pixel column belonging to the specified sub-pixel columns and the other sub-pixel column adjacent to the first specified sub-pixel column, apply a voltage having the same polarity as the first specified sub-pixel column to one of the signal lines of a second specified sub-pixel column and a third specified sub-pixel column adjacent to the first specified sub-pixel column, and invert the polarities of the voltages to be applied at predetermined cycles.
Owner:JAPAN DISPLAY INC
Micro-semiconductor stacked structure and electronic device thereof
PendingCN111883522AMaintain electrical functionReduce pixel areaSolid-state devicesSemiconductor devicesDevice materialElectrical connection
The invention relates to a micro-semiconductor stacked structure and an electronic device thereof. The invention provides a micro-semiconductor stacked structure which comprises at least two stacked structure array units, and one stacked structure array unit is stacked on the other stacked structure array unit, wherein one stacked structure array unit is stacked along the vertical direction of theother stacked structure array unit; each laminated structure array unit comprises a base material, a conductive pattern layer arranged on the base material, and a plurality of micro semiconductor devices arranged on the base material and electrically connected with the conductive pattern layer.
Owner:LG DISPLAY CO LTD
Thin-film transistor and fabrication method thereof and array substrate
ActiveUS20190088791A1Improve electrical performanceReduce pixel areaTransistorSolid-state devicesHexagonal boron nitrideEngineering
The present invention provides a thin-film transistor and a fabrication method thereof, and an array substrate. The thin-film transistor includes a separation layer (5) arranged between the source electrode (4) and the drain electrode (6). An oxide semiconductor channel layer (7) is arranged on one side of the separation layer (5) and the drain electrode (6) to contact a portion of an upper surface of the drain electrode (6), a side surface of the drain electrode (6) and the organic separation layer (5), and a portion of an upper surface of the source electrode (4) to serve as a vertical channel, of which a channel length corresponds to a thickness of the separation layer (5). Varying the thickness of the separation layer to reduce the length of the vertical channel to a sub-micrometer order would greatly reduce the size of the thin-film transistor and reduce the area of a pixel. The vertical channel does not cause a short channel effect so as to improve electrical performance of the thin-film transistor. Using a multiple-layered hexagonal boron nitride film to make a moisture / oxygen barrier layer (2) and using a double-layered graphene film to make the source electrode (4) and the drain electrode (6) help significantly improve bending durability of the thin-film transistor.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
TFT array substrate, display device and preparation method of TFT array substrate
ActiveCN108493216AGuaranteed reliabilityReduce pixel areaSolid-state devicesSemiconductor devicesCapacitanceEngineering
The invention provides a TFT array substrate, a display device and a preparation method of the TFT array substrate. The TFT array substrate is provided with a double-layer storage capacitor structure,thus reducing the pixel area, improving PPI of a display panel, and increasing flexibility of layout design while ensuring the capacity of the storage capacitor of the TFT device and ensuring reliability of the TFT device. Besides, by setting an auxiliary metal layer between a first metal layer and a third metal layer, the insulating layers above and below the auxiliary metal layer can be simultaneously patterned through one patterning process, thus saving one mask, reducing the process of photo, etching and stripping of the patterning process, and saving the process cost of the TFT array substrate. The display device utilizes the TFT array substrate, so that under the same display size, the pixel distribution density of the display device is greatly improved and the displayed frame is clearer.
Owner:FUJIAN HUAJIACAI CO LTD
Stack type micro-display driving chip architecture and preparation method thereof
PendingCN113223456AReduce pixel areaImprove compatibilityStatic indicating devicesDriving currentHemt circuits
The invention discloses a stack type micro-display driving chip architecture which comprises an upper pixel circuit layer and a lower driving circuit layer which are mutually independent, the edge of the pixel circuit layer is provided with a TSV circuit, the middle of the pixel circuit layer is provided with a pixel circuit, and the periphery of the upper surface of the driving circuit layer is provided with protruding contacts used for being electrically connected with the TSV circuit. A pixel circuit and a peripheral driving circuit are prepared separately by using a stack type framework, and then the two circuits are bonded together by using a 3D packaging technology of wafer to wafer or die to wafer, so a driving IC of 3D stacking of the pixel circuit and the peripheral driving circuit is prepared. The purposes of reducing the die pixel area, improving the yield and reducing the cost are achieved; meanwhile, the problem of poor compatibility of a traditional driving IC is solved, and the requirements of large driving current of a pixel circuit and high speed of a driving circuit can be met; and power consumption and heating are reduced.
Owner:ANHUI SEMICON INTEGRATED DISPLAY TECH CO LTD
Solid state imaging apparatus
InactiveCN1839477AIncrease opening ratioHigh sensitivityTelevision system detailsSolid-state devicesSolid massPhotodiode
A 3TrCMOS solid-state image pickup device is provided with a plurality of pixels, including a first pixel (230) and a second pixel (231) adjacent to each other. Each of the adjacent pixels is provided with a photodiode (201) for converting light into a signal charge and a transmission transistor for reading out the signal charge generated by the photodiode (201). The first pixel (230) is provided with a reset transistor whose one end is connected with the both photodiodes (201) in the first pixel (230) and in the second pixel (231) and the other end is supplied with a power supply voltage. The second pixel (231) is provided with a gate electrode (204) connected with the both transmission transistors in the fist pixel (230) and the second pixel (231), and an amplifying transistor whose drain is supplied with a power supply voltage.
Owner:PANASONIC CORP
Packaging structure and packaging method of focal plane detector chip integrated pixel-level lens
PendingCN112820781AReduce pixel areaImprove signal-to-noise ratioFinal product manufactureSolid-state devicesEngineeringFocal plane detector
The invention discloses a packaging structure and a packaging method for a focal plane detector chip integrated pixel-level lens. The packaging structure comprises a packaging cover cap and a packaging base which are matched with each other, the packaging cover cap comprises a packaging cover cap body, a plurality of lenses and an inner concave cavity which are integrally formed, and the plurality of lenses are arranged in an array; the inner concave cavity is used for sealing and packaging a plurality of focal plane detector chips, the plurality of focal plane detector chips are all arranged on the packaging base, and meanwhile, the focus of a lens matched with one focal plane detector chip is distributed on a light receiving surface of the focal plane detector chip. The size of the packaging structure provided by the invention is greatly reduced; meanwhile, light within the range of the lens can be effectively converged and collected, signals are enhanced, noise is reduced, and the system performance is effectively improved.
Owner:SUZHOU SUNA PHOTOELECTRIC
Global shutter pixel unit of complementary metal oxide semiconductor (CMOS) image sensor
ActiveCN102447848BReduce noiseReduce reset noiseTelevision system detailsColor television detailsVIT signalsPhysics
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Image sensing system and method
ActiveUS7071981B1Without increase pixel areaIncrease overall die size and costTelevision system detailsTelevision system scanning detailsImage captureImage sensing
A cost-effective image capture apparatus is presented which achieves high shutter speed without blurring the captured image or introducing noise. The apparatus uses standard 4T pixels to store exposure information on the pixel itself and employs a near simultaneous reset mechanism to reset the pixels, thereby achieving high-speed image capture without increasing the per pixel die area for extra storage or incurring unwanted current spikes and noise due to simultaneous resets.
Owner:INTELLECTUAL VENTURES II
Liquid crystal display panel
ActiveCN108681139AHigh resolutionReduce aliasingNon-linear opticsLiquid-crystal displayComputer science
A liquid crystal display panel comprises a display area and a non-display area, wherein the liquid crystal display panel comprises a first substrate and a second substrate; the first substrate is provided with central pixel units and an edge pixel units; each central pixel unit comprises a plurality of central pixel electrodes; each edge pixel unit comprises a plurality of edge pixel electrodes, the number of the edge pixel electrodes within each edge pixel unit is greater than the number of central pixel electrodes within each central pixel unit; along the direction perpendicular to the firstsubstrate, the regions of the second substrate corresponding to each central pixel unit and each edge pixel unit are provided with a central color-resistance unit and an edge color-resistance unit respectively, and each edge color-resistance unit is filled with a black matrix. According to the invention, a black matrix is utilized to properly cover the area corresponding to each edge pixel electrode on the second substrate, thereby increasing the analytic degree of the edge of the display area so as to reduce the saw tooth phenomenon generated at the edge of the display area.
Owner:KUSN INFOVISION OPTOELECTRONICS
Display panel and display device
InactiveCN111261029AIncrease the number ofHigh densityIdentification meansPixel densityComputer graphics (images)
The invention provides a display panel and a display device. The display panel comprises a normal display area and a special-shaped display area. A plurality of first pixel groups and first scanning lines are sequentially arranged in the normal display area; a plurality of second pixel groups and second scanning lines are sequentially arranged in the special-shaped display area; the second pixel group comprises a plurality of rows of sub-pixels arranged in the first direction, each row of sub-pixels are connected with the second scanning lines in the corresponding row, and each row of first scanning lines are connected with the second scanning lines in the corresponding row, so that the size of the sub-pixels in the second pixel group is reduced, the pixel density is improved, and the display quality is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Pixel circuit and infrared imager
ActiveCN114245041AReduce pixel areaReduce noiseTelevision system detailsContinuously circulated pulse countersCapacitanceInfrared
The invention provides a pixel circuit and an infrared imager, and relates to the field of infrared imaging. The integration module performs integration and coarse quantization through the common module and the charge injection module at the same time; the charge injection module injects charges into an integrating capacitor in the integrating module; the dynamic comparator generates a counting signal in the process of carrying out fine quantization on the residual voltage, the linear feedback shift register counter counts, the counting result is a coarse quantization result, the dynamic comparator generates the counting signal in the process of carrying out fine quantization on the residual voltage, the linear feedback shift register counter receives the counting signal and counts from 0, and the counting result is a fine quantization result. According to the pixel circuit, coarse and fine quantization share the same module, so that the pixel area is reduced. According to the pixel circuit, part of charges are injected into the integrating capacitor in stages, compared with the injection of equal charges, the introduced noise is lower, the noise charges injected every time are reduced on the whole, the signal-to-noise ratio is improved, and therefore the overall power consumption of the pixel circuit is reduced. The pixel circuit has lower power consumption and better quality factor.
Owner:北京领丰视芯科技有限责任公司
Array substrate, manufacturing method thereof, and display device
ActiveCN104701328BReduce the occupied areaIncrease PPISolid-state devicesSemiconductor/solid-state device manufacturingCapacitanceDisplay device
An array substrate, a manufacturing method thereof and a display device are disclosed. The array substrate comprises a gate electrode layer (2), an active layer (4) and a source-drain electrode layer (6) that are disposed on a substrate (1). The substrate comprises a storage capacitance region thereon II. In the storage capacitance region II, projections of the gate electrode layer (2) and the active layer (4) on the substrate (1) are at least partially overlapped, and projections of the active layer (4) and the source-drain electrode layer (6) on the substrate (1) are at least partially overlapped. The array substrate can effectively increase the storage capacitance without increasing an area occupied by the storage capacitance region, which is advantageously to reduce a pixel area and increase PPI.
Owner:BOE TECH GRP CO LTD
Array substrate structure, display device and preparation method of array substrate structure
ActiveCN113192980AImprove reliabilityIncrease flexibilitySolid-state devicesSemiconductor devicesEngineeringCapacitor
Owner:FUJIAN HUAJIACAI CO LTD
Thin Film Transistor Substrate Having Color Filter
ActiveUS20180120613A1Increase opening ratioReduce pixel areaSolid-state devicesNon-linear opticsSemiconductorTransistor
The present disclosure relates to a thin film transistor substrate having a color filter layer. The present disclosure provides a thin film transistor substrate comprising: a plurality of pixel areas disposed in a matrix manner on a substrate, each pixel area including an aperture area and a non-aperture area; a first color filter and a second color filter stacked at the non-aperture area on the substrate; an overcoat layer disposed on the first color filter and the second color filter; a semiconductor layer disposed at the non-aperture area on the overcoat layer; a gate insulating layer and a gate electrode stacked on a middle portion of the semiconductor layer; a third color filter at the non-aperture area on the semiconductor layer and the gate electrode; and a source electrode and a drain electrode disposed on the third color filter.
Owner:LG DISPLAY CO LTD
IGZO (Indium Gallium Zinc Oxide) backboard structure applied to OLED (Organic Light Emitting Diode) panel and manufacturing method
PendingCN114520237AHigh-resolutionReduce leakage currentSolid-state devicesSemiconductor/solid-state device manufacturingCapacitanceIndium gallium zinc oxide
The invention discloses an IGZO backboard structure applied to an OLED panel and a manufacturing method. A metal layer M0 is arranged on a substrate Sub; an insulating layer PV is also arranged on the substrate Sub, and the insulating layer PV covers the metal layer M0; a semiconductor layer IGZO is arranged on the insulating layer PV; a metal layer M0.5 is arranged on the IGZO semiconductor layer; an insulating layer GI is also arranged on the insulating layer PV and covers the metal layer M0.5 and the semiconductor layer IGZO; a metal layer M1 is arranged on the insulating layer GI; an insulating layer IP is also arranged on the insulating layer GI and covers the metal layer M1; a metal layer M2 is arranged on the insulating layer IP, and the metal layer M2 and the metal layer M0.5 form a storage capacitor; an organic flat layer OP is further arranged on the insulating layer IP, and the metal layer M2 is covered with the organic flat layer OP; an anode metal layer Anode is arranged on the organic flat layer OP; a pixel definition layer PDL is further arranged on the organic leveling layer OP, and an opening is formed in the position, at the anode metal layer Anode, of the pixel definition layer PDL. According to the invention, the defect of low resolution of the IGZO OLED panel can be improved.
Owner:FUJIAN HUAJIACAI CO LTD
A kind of preparation method of tft array substrate, display device and tft array substrate
ActiveCN108493216BImprove reliabilityIncrease flexibilitySolid-state devicesSemiconductor devicesCapacitanceEngineering
The invention provides a TFT array substrate, a display device and a method for preparing a TFT array substrate. The TFT array substrate has a double-layer storage capacitor structure, which can ensure a constant capacity of the storage capacitor of the TFT device and ensure the reliability of the TFT device. , reduce the pixel area, increase the PPI of the display panel, and increase the flexibility of the layout design; in addition, by setting the auxiliary metal layer between the first metal layer and the third metal layer, the upper and lower layers of the auxiliary metal layer can be made The insulating layer is patterned through a patterning process at the same time, which can save a mask, reduce the exposure, etching and stripping processes of a patterning process, and save the process cost of the TFT array substrate; the display device provided by the present invention adopts With the above-mentioned TFT array substrate, under the same display size, the pixel distribution density of the display device is greatly improved, and the display picture is clearer.
Owner:FUJIAN HUAJIACAI CO LTD
A display device and its driving method
ActiveCN104570469BIncrease lighting brightnessIncrease display resolutionStatic indicating devicesNon-linear opticsImage resolutionDisplay device
The invention provides a display device and a driving method thereof, relates to the field of display technology, and solves the problem that the existing display panels are difficult to achieve high resolution. A display device, comprising a display panel, a first drive module, a second drive module, and an optical modulator located on the light-emitting side of the display panel, a plurality of prism structures are formed between the display panel and the light modulator, and the pixels include n dummy pixels, The light modulation unit includes: n light modulation regions respectively corresponding to virtual pixels; one frame picture includes n sub-frame pictures; the first driving module is used to drive the display panel to sequentially display n consecutive sub-frame pictures in one frame picture; The second drive module is used to drive the n light modulation areas of the light modulation unit to be light-transmitting areas in the n sub-frame pictures in turn, and the other n-1 light modulation areas are light-shielding areas, and the optical modulator will part of the light-shielding area Light is reflected into the prism structure so that part of the light is emitted from the light-transmitting area.
Owner:BOE TECH GRP CO LTD
TOF image sensor pixel structure capable of suppressing background light
ActiveCN111385556AAvoid problemsReduce pixel areaTelevision system detailsColor television detailsCapacitanceHemt circuits
A TOF image sensor pixel structure capable of suppressing background light is composed of a photodiode PD, a transmission switch TG, a feedback switch FBG, a reset switch rst, an MOS transistor capacitor C, a voltage-controlled current source and a charge integral amplification circuit. The negative electrode of the PD is connected with the charge integral amplification circuit through a transmission switch TG, and is connected with the MOS capacitor C and the control voltage Vctr of the voltage-controlled current source through a feedback switch FBG; the output current Ibias of the voltage-controlled current source directly flows into the negative electrode of the PD; the grid electrode of the MOS tube capacitor C is connected with the ground through a reset switch rst, and the source electrode and the drain electrode are in short circuit and are directly connected to the ground; and the structure can solve the problems that strong background light enables TOF pixels to be saturated and measurement precision to be reduced, and a traditional background light suppression scheme enables the pixel size to be significantly increased and enables the resolution of the sensor to be limited.
Owner:TIANJIN UNIV MARINE TECH RES INST
Active matrix organic light emitting diode pixel driving circuit and driving method thereof
ActiveCN103606351BImprove the display effectImprove uniformityStatic indicating devicesCapacitanceDriving current
The invention provides an active matrix organic light emitting diode pixel drive circuit and a driving method thereof. The drive circuit comprises a first transistor, a second transistor, a third transistor, drive transistors, a compensation capacitor and an organic light emitting diode, wherein embedded tunneling field-effect tubes are arranged on the drive transistors and can be used for changing threshold voltages of the drive transistors so as to change the magnitude of drive currents, unevenness of threshold voltages of the pixel drive transistors is compensated, the area of a single pixel is reduced, and improvement of the aperture opening ratio is facilitated.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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