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12results about How to "Improve display unevenness" patented technology
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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
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, 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 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 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