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24results about How to "Improve display unevenness" patented technology
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Display panel and display device
ActiveCN119252190Areduce couplingImprove display unevennessStatic indicating devicesShift registerActive time
The invention discloses a display panel and a display device. The display panel comprises a driving circuit, a plurality of pixels, a plurality of first scanning lines and a plurality of clock lines, the driving circuit comprises N cascaded first shift register units; the clock line is electrically connected with the plurality of first shift register units; the first shift register unit is used for at least receiving an input signal and a clock signal on a clock line, and providing the clock signal of the clock line as a first scanning signal to a first scanning line; the effective time of the first scanning signals of at least part of the first shift register units connected with the same clock line is overlapped; the process that the clock signal jumps from the invalid level to the valid level is a first voltage edge, and the process that the clock signal jumps from the valid level to the invalid level is a second voltage edge; the hopping duration of the second voltage edge of the clock signal is greater than or equal to the second preset duration in at least part of the time period of the display time of one frame of picture. By adopting the technical scheme, the problem of non-uniform display of the display panel can be improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Display panel, driving method thereof and display device
ActiveCN119296482AImplement Threshold CompensationImproved Threshold Voltage DifferenceStatic indicating devicesDisplay deviceData signal
The invention discloses a display panel, a driving method thereof and a display device, and belongs to the technical field of display. A sub-pixel of the display panel comprises a pixel circuit and a light-emitting element; the pixel circuit at least comprises a driving transistor, a data write-in module, a threshold compensation module and a bias adjustment module. The data write-in module is used for providing a data signal for the driving transistor, the bias adjustment module is used for adjusting the bias state of the driving transistor through a bias adjustment signal, and the threshold compensation module is used for detecting and compensating the deviation of the threshold voltage of the driving transistor; a first power signal connected with the first electrode of the driving transistor is a fixed value, a second power signal connected with the second electrode of the driving transistor is a change value, and a bias adjusting signal is a change value. The driving method is applied to the display panel. The display device comprises the display panel. According to the invention, the problem of poor display effect caused by threshold drift after the driving transistor works for a long time can be improved, and the power consumption of the panel can be reduced.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
Data voltage compensation method of display panel, display panel and device
The embodiment of the invention provides a data voltage compensation method of a display panel, the display panel and a device. A display area of the display panel comprises a central area. The target pixel unit is located outside the central area. The method comprises the following steps: acquiring a gray scale characteristic parameter based on a first compensation parameter corresponding to a central region under a target gray scale and a second compensation parameter corresponding to a target pixel unit under the target gray scale; and obtaining a compensation weight of the target pixel unit under the target gray scale based on the gray scale feature parameter. And obtaining a target compensation value of the target pixel unit based on the compensation reference value, the compensation coefficient and the compensation weight of the target pixel unit under the target gray scale. And compensating the data voltage of the target pixel unit based on the target compensation value of the target pixel unit. According to the method provided by the embodiment of the invention, the problem of non-uniform display of the display panel caused by various factors can be effectively improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Pixel circuit, driving method of pixel circuit and display substrate
ActiveCN119626164AImprove uniformityImprove display unevennessStatic indicating devicesControl signalHemt circuits
The invention discloses a pixel circuit, a driving method of the pixel circuit and a display substrate. The pixel circuit comprises a data writing module, a storage module, a bias module and a driving module, the bias module is coupled with at least one control signal, a first power supply end, a reference voltage signal, a bias voltage signal and a fifth node, and the bias module is configured to write data to the fifth node under the control of the at least one control signal. And providing one of the reference voltage signal, the bias voltage signal and the first power end signal to the fifth node in different periods. One of a reference voltage signal, a bias voltage signal and a first power supply end signal can be provided for a fifth node in different time periods through a bias module, the potential of a first node is adjusted through a storage module, and a grid electrode of a driving transistor is biased; when the pixel circuit drives the light-emitting module to emit light, uneven current caused by voltage drop of the first power supply end can be compensated, the problem of uneven display is solved, and the uniformity of a display picture is improved.
Owner:BOE TECHNOLOGY GROUP CO LTD +1
Driving module and display device
The present application belongs to the field of display, and specifically relates to a driving module and a display device. The driving module includes a source driving chip, a polarity partition control module, a picture detection module and a selection module. Each source driving chip is connected to multiple columns of data lines of a display panel, the source driving chips of odd columns are connected to a pull-down power supply, and the source driving chips of even columns are connected to a pull-up power supply and a pull-down power supply through a polarity partition control module. The picture detection module is connected to the polarity partition control module, and is used to control the polarity partition control module to work according to the detected crosstalk degree of the display picture, so as to form a conventional polarity mode and a polarity symmetry mode; in the polarity symmetry mode, the selection module outputs a second polarity signal, and controls the polarity reversal interval of the display panel to be n rows, so as to avoid the situation where the polarity of the entire column of pixels at the junction of the display areas controlled by different source driving chips is the same, so as to improve or eliminate the crosstalk and the display unevenness caused by the bright and dark lines.
Owner:HKC CORP LTD
Display panel and manufacturing method thereof, and display device
Embodiments of the present disclosure provide a display panel and a preparation method thereof, and a display device, which relate to the field of display technology and are used to improve the problem of uneven brightness of the display panel during the display process. The display panel includes: a base substrate, an active pattern layer and a first conductive layer. Among them, the active pattern layer is arranged on the base substrate, and the active pattern layer includes: at least one first conductive connecting line. The first conductive layer is arranged on a side of the active pattern layer away from the base substrate, and the first conductive layer includes: at least one connecting line extending along a first direction, and a plurality of initialization signal lines arranged along the first direction and extending along a second direction, one end of each initialization signal line is coupled to a connecting line, wherein the first direction intersects with the second direction. A first conductive connecting line is coupled to at least two initialization signal lines, wherein the at least two initialization signal lines are coupled to the same connecting line.
Owner:BOE TECHNOLOGY GROUP CO LTD +1
Reflective display panel
ActiveCN222618933UImprove uniformityImprove display unevennessNon-linear opticsDisplay deviceMechanical engineering
The utility model provides a reflective display panel. The reflective display panel comprises a first substrate, a second substrate and dimming particles, wherein the first substrate and the second substrate are oppositely arranged, and the dimming particles are located between the first substrate and the second substrate. The reflective display panel further comprises a plurality of first retaining walls and a plurality of second retaining walls, the first retaining walls are arranged on the side, facing the second substrate, of the first substrate and arranged at intervals in the first direction, and the second retaining walls are arranged on the side, facing the first substrate, of the second substrate and arranged at intervals in the second direction. At least one of the first retaining wall and the second retaining wall is provided with a groove, the groove and the first retaining wall or the second retaining wall opposite to the groove are arranged in an embedded mode, a one-way retaining wall is formed on the single-side substrate, the one-way first retaining wall or the one-way second retaining wall cannot block diffusion of dimming particles in multiple directions, and therefore the uniformity of diffusion of the dimming particles can be improved; therefore, the problem of uneven display caused by uneven cholesteric liquid crystal diffusion of an existing reflective display device is solved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
Display panel and display device
ActiveCN114497084BImprove display unevennessImprove the display effectDisplay deviceElectrical connection
The embodiment of the present application provides a display panel and a display device, wherein the display panel includes a fan-out area, and the fan-out area includes: a first group of fan-out lines, including a plurality of first fan-out lines arranged in parallel along a first direction; a second group of fan-out lines, adjacent to the first group of fan-out lines in the first direction, the second group of fan-out lines including compensation lines and a plurality of second fan-out lines arranged along the first direction, the second fan-out lines including N short fan-out lines adjacent to the first group of fan-out lines, N being a positive integer greater than 0, wherein a wiring spacing is formed between the short fan-out lines and the first fan-out lines, the length of at least some of the short fan-out lines is less than the length of the adjacent first fan-out lines, each of the N short fan-out lines is electrically connected to at least one compensation line, and the compensation line extends from the short fan-out line to the wiring spacing. The present application can improve the display effect of the display panel.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Display panel, driving method thereof and display device
PendingCN122090762Aavoid uneven displayImprove display unevennessStatic indicating devicesDisplay deviceData signal
The invention discloses a display panel, a driving method thereof and a display device. The display panel includes: a plurality of sub-pixels; the data lines are electrically connected with the sub-pixels; each demultiplexer comprises n transistors, first electrodes of the n transistors in the same demultiplexer are electrically connected with the same data signal end, second electrodes of the n transistors in the same demultiplexer are electrically connected with the n data lines in a one-to-one correspondence mode, and n is an integer larger than 1; in the first time period, the conduction sequence of the n transistors in the same demultiplexer is a first sequence, in the second time period, the conduction sequence of the n transistors in the same demultiplexer is a second sequence, and the first sequence is different from the second sequence. The embodiment of the invention provides a display panel, a driving method thereof and a display device. The problem of uneven display of the display panel can be solved.
Owner:XIAMEN TIANMA DISPLAY TECH CO LTD
Display panel, display device and mask
ActiveCN222465227Ureduce the differenceReduce brightness differenceOriginals for photomechanical treatmentDisplay deviceTesting Methods
The embodiment of the utility model provides a display panel, and belongs to the technical field of display. A display backboard in the display panel is provided with a first area, a splicing area and a second area which are sequentially connected in the first direction, and the distribution density of light-emitting units in all the areas is the same. A first signal line in the display backboard is located in the splicing area, and a second signal line is located in the first area or the second area and controls the brightness of the first light-emitting unit and the second light-emitting unit respectively. The line widths of the first signal line and the second signal line are different, and / or the areas of the first electrodes of the first light-emitting unit and the second light-emitting unit are different, and the driving conditions of the first light-emitting unit and the second light-emitting unit are the same; or the first and second signal lines are spaced from each other and extend in the second direction, the signal lines are different in line width, the areas of the first electrodes of the first and second light-emitting units are different, and the voltages provided by the first and second signal lines are different. The brightness difference between the first light-emitting unit and the second light-emitting unit is within 15%. According to the embodiment of the invention, the problem of uneven display can be improved.
Owner:BOE TECHNOLOGY GROUP CO LTD +2
Array substrate, preparation method thereof and display panel
PendingCN119562593Aconsistent widthImprove display unevennessMechanical engineeringMaterials science
The invention provides an array substrate, a preparation method thereof and a display panel, and solves the problem of poor display uniformity in the prior art. The array substrate comprises a fan-out region, a first electrode and a second electrode, the array substrate comprises a substrate; the conductive layers are stacked on the same side of the substrate; wherein the plurality of conducting layers comprise a plurality of conducting wires, the plurality of conducting wires comprise a plurality of fan-out wires and at least one redundant wire, the fan-out wires and the redundant wire are located in the fan-out area, the fan-out wires and the redundant wire are arranged in sequence, and two fan-out wires adjacent to the redundant wire are located in the same conducting layer.
Owner:SUZHOU GUOXIAN INNOVATION TECHNOLOGY CO LTD
Display panel and display device
The invention discloses a display panel and a display device. The display panel includes: a substrate; the light-emitting element is located on the first side of the substrate, and the light-emitting element comprises a first electrode, a light-emitting layer and a second electrode which are arranged in a stacked mode; the isolation structure is located on the first side of the substrate, the isolation structure and the first electrode are arranged in a spaced mode in the direction parallel to the light emitting face of the display panel, the isolation structure is in lap joint with the second electrode, the isolation structure at least comprises a first isolation part, and the first isolation part and the first electrode are located on the same film layer and made of the same material. According to the embodiment of the invention, the display performance of the display panel can be improved.
Owner:XIAMEN TIANMA DISPLAY TECH CO LTD
Display panel and display device
This application discloses a display panel and a display device. The display panel includes a display area, which includes multiple pixel circuit rows, data lines, auxiliary lines, and connecting lines. Each pixel circuit row includes multiple pixel circuits arranged along a first direction, and the multiple pixel circuit rows are arranged along a second direction, where the first and second directions intersect. Data lines extend along the second direction and are connected to the pixel circuits. Auxiliary lines extend along the first direction, with at least two auxiliary lines corresponding to each pixel circuit row. Connecting lines extend along the second direction. The auxiliary lines include data auxiliary lines, and the connecting lines include data connecting lines, with the data auxiliary lines connected to both the data lines and the data connecting lines. According to embodiments of this application, the display performance of the display panel can be improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Compensation method of dark spot sub-pixel in display panel and display panel
Owner:HEFEI VISIONOX TECH CO LTD
Display panel, display device and preparation method of display panel
Embodiments of the present application provide a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, a leakage current transmission layer, a light-emitting functional layer and a partition structure. The leakage current transmission layer is located on one side of the substrate and comprises a leakage current transmission part. The light-emitting functional layer comprises a plurality of light-emitting functional parts arranged at intervals, and each light-emitting functional part comprises a light-emitting layer. At least part of the leakage current transmission part and the light-emitting layer are arranged in a stacked manner along the thickness direction of the substrate. The partition structure is arranged at least between adjacent light-emitting functional parts, and comprises a conductive material. At least part of the leakage current transmission part is electrically connected to the conductive material of the partition structure. In the display panel provided by the embodiments of the present application, the control ability of the driving current in the display panel can be improved.
Owner:HEFEI VISIONOX TECH CO LTD +1
Display device
This invention provides a display device in which two cascaded gate driving circuits are spaced X gate driving circuits apart. The phase difference of the first clock signals corresponding to the two cascaded gate driving circuits is (X+1)H. In at least one sub-pixel, the effective level of the first gate control signal corresponding to the compensation transistor and the effective level of the second gate control signal corresponding to the data transistor at least partially overlap. The effective level of the second gate control signal corresponding to the data transistor is located between the two first effective levels of the first clock signal applied by the gate driving circuit corresponding to the compensation transistor, and the phase difference between the effective level of the second gate control signal corresponding to the data transistor and one of the two first effective levels is greater than 0 and less than (X+1)H. This ensures that in the same sub-pixel, the effective level of the second gate control signal corresponding to the data transistor does not coincide with the moment when the voltage drop of the first gate control signal corresponding to the compensation transistor occurs, thereby improving the problem of uneven display.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
Compensation method and compensation device for tiled display panel
PendingCN121938288AImprove the display effectReduce power signal differencesStatic indicating devicesIdentification meansComputer hardwareComputer graphics (images)
The invention discloses a compensation method and a compensation device for a tiled display panel. The compensation method of the tiled display panel comprises the following steps: acquiring a current display picture of each tiled sub-screen in the tiled display panel; according to the current display picture of each spliced sub-screen and the predetermined display brightness of each spliced sub-screen under different gray scales and different display areas, determining the equivalent display brightness of each spliced sub-screen when the current display picture is displayed; determining an impedance compensation coefficient of each spliced sub-screen according to the target display brightness and the equivalent display brightness of each spliced sub-screen; and compensating the impedance on the power signal transmission path of the spliced sub-screen according to the impedance compensation coefficient. According to the display panel, the difference of power supply signals among different spliced sub-screens is reduced, the display unevenness among the spliced sub-screens is improved, and the display effect of the display panel is improved.
Owner:CHENGDU VISTAR OPTEOLECTRONICS CO LTD
Display panel and display terminal
PendingCN119248127Areduce couplingImprove display unevennessStatic indicating devicesInput/output processes for data processingComputer hardwareComputer graphics (images)
The invention discloses a display panel and a display terminal. The display panel comprises a plurality of pixel groups arranged in the first direction, a plurality of signal lines and a touch electrode layer. Each pixel group comprises a plurality of sub-pixels arranged in the second direction. One signal line provides a driving signal for each sub-pixel in one pixel group; the touch electrode layer comprises a plurality of spaced touch electrode blocks, and orthographic projections of the signal lines on the touch electrode blocks are overlapped with the touch electrode blocks; wherein the orthographic projection of at least one signal line on the touch electrode layer is overlapped with the two adjacent touch electrode blocks in the first direction, and an included angle is formed between the second direction and the first direction. The orthographic projection of one signal line on the touch electrode layer is overlapped with the two touch electrode blocks adjacent to the first direction, so that the coupling amount of the signal line and the same touch electrode block is reduced, the coupling degree of the signal line and the touch electrode blocks is reduced, and uneven display is improved.
Owner:GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Liquid crystal panel with high anti-vibration level and display module
ActiveCN222354194UImprove display unevennessImprove vibration resistanceVehicle componentsNon-linear opticsMechanical engineeringLiquid crystal
The utility model discloses a liquid crystal panel with a high anti-vibration level, which comprises an upper substrate, a lower substrate, a liquid crystal material and a plurality of spherical supporting bodies, the liquid crystal material and the spherical supporting bodies are arranged between the upper substrate and the lower substrate, a transparent film layer is arranged on the lower surface of the upper substrate or the upper surface of the lower substrate, a plurality of limiting retaining walls are formed on the transparent film layer, and the limiting retaining walls are arranged on the lower surface of the upper substrate or the upper surface of the lower substrate. The spherical supporting bodies are distributed between the adjacent limiting retaining walls. The liquid crystal panel has a high anti-vibration level. The utility model further discloses a display module which comprises the liquid crystal panel.
Owner:TRULY SEMICON
Display panel and compensation data determination method, device and driving method thereof
Owner:HEFEI VISIONOX TECH CO LTD
Display panel and display apparatus
PendingEP4307861A4Improve display unevennessreduce the differenceStatic indicating devicesSolid-state devices
Provided are a display panel and a display device. The display panel has a display area and a bezel area. The bezel area includes a first bezel area and a second bezel area that are located on opposite sides of the display area. The display panel includes a cathode, a power supply connection portion, and at least one bonding connection portion. The cathode is disposed in the display area and the bezel area. The power supply connection portion includes a first connection portion and a second connection portion. The first connection portion is connected to the cathode in the first bezel area, the second connection portion is connected to the cathode in the second bezel area, and the first connection portion and the second connection portion supply power to the cathode. The bonding connection portion is located in the first bezel area, and connects the first connection portion and the second connection portion. Display unevenness caused by a cathode IR Drop is improved, thereby improving display uniformity.
Owner:YUNGU GUAN TECH CO LTD
Display panel, manufacturing method thereof and display device
ActiveCN119556505AImprove the display effectshorten speedNon-linear opticsDisplay deviceStructural engineering
The invention belongs to the field of display, and particularly relates to a display panel and a manufacturing method thereof and a display device.The display panel comprises a first substrate, a second substrate and a spacer, the second substrate is arranged on one side of the first substrate, one of the first substrate and the second substrate is an array substrate, and the other one of the first substrate and the second substrate is an opposite substrate; the spacer is arranged between the first base plate and the second base plate, the spacer comprises a spacer column and a ball, the spacer column is arranged on the first base plate, the ball is arranged at the top, away from the first base plate, of the spacer column, and the ball can roll under the acting force applied by the second base plate. Due to the fact that the balls are arranged in the containing grooves in the rolling mode, friction between the spacers and the second substrate is rolling friction, the shortening speed of the tops of the spacers due to abrasion is greatly reduced, uneven display caused by thickness changes of a liquid crystal box is improved, and the display effect of the display panel is further improved.
Owner:HKC CORP LTD
Display panel and display device
ActiveCN115223500Bsmall pressure dropreduce the numberStatic indicating devicesComputer hardwareComputer graphics (images)
An embodiment of the present invention provides a display panel and a display device. The display panel includes a scan line extending along a first direction and a longitudinal reset line extending along a second direction, and the first direction and the second direction intersect each other; the display panel includes a display area, and adjacent longitudinal reset lines in the display area are disconnected from each other. The present invention can improve display unevenness and enhance display uniformity.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
Display panel, preparation method thereof and display device
PendingCN119255651AImprove display unevennessImprove display uniformityDisplay deviceMechanical engineering
The invention discloses a display panel, a preparation method thereof and a display device. The display panel comprises a display area and a non-display area; the display panel comprises a plurality of first signal lines and a plurality of second signal lines; the outline of the display area comprises an arc edge, a plurality of first signal lines are arranged at the position corresponding to the arc edge, the first signal lines are formed through a halftone mask plate or a gray scale mask plate, and the thicknesses of partial metal layers corresponding to the first signal lines are different, so that the impedances of the first signal lines at the arc edge are close; and / or the fan-out area comprises a middle area and side edge areas arranged on the two sides of the middle area; the plurality of second signal lines of the part, far away from the middle area, of at least the side area are formed through a halftone mask plate or a gray scale mask plate, and the thicknesses of the partial metal layers corresponding to the plurality of second signal lines are different, so that the impedances of the plurality of second signal lines are close. Through the arrangement, the display unevenness is improved, and the display uniformity is improved.
Owner:HEFEI VISIONOX TECH CO LTD