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132results about How to "Avoid showing exceptions" patented technology

Shift register unit, gate drive circuit and display device

The embodiment of the invention provides a shift register unit, a gate drive circuit and a display device, and can enhance the output capacity of a signal output end and shorten the fall time of output waveform. The shift register unit provided by the invention comprises a first output module, a second output module, an input module, a drop-down control module, a drop-down module and a reset module, wherein under the control of a pull-up control node, the signal of a clock signal end is output to a signal output end; under the signal control of a signal input end, the voltage of a first power supply end is output to the pull-up control node; under the signal control of the signal input end, the signal of a drop-down control node drops down to the voltage of a second power supply end; under the control of the drop-down control node, the signals of the pull-up control node and the signal output end drop down to the voltage of the second power supply end; under the control of a reset signal end, the signal of the first power supply end is output to the drop-down control node. The shift register unit, the gate drive circuit and the display device, provided by the embodiment of the invention, are applied to the production and manufacturing of display panels.
Owner:HEFEI BOE OPTOELECTRONICS TECH +1

Implementation method for solving electrostatic display abnormity of display screen

The invention discloses an implementation method for solving an electrostatic display abnormity of a display screen. The display screen is a display screen of a handheld device. The method comprises the following steps of step 1, setting a threshold value for realizing a detection of an existence of a static electricity of a software of an electrostatic sensitive device of the handheld device; step 2, detecting whether the static electricity exists or not. If the static electricity exists, step 3 is executed, otherwise step 2 carries out circle detections; step 3, sending interrupt signals to a master chip of the handheld device by the electrostatic sensitive device; step 4, detecting whether an abnormity exists in a display screen register or not by the master chip. If the abnormity exists, step 5 is executed, otherwise the procedure returns to step 2; step 5, reinitializing the display screen; step 6, refreshing the screen once; and step 7, jumping back to step 2 to continue to detect. The method enables the handheld device to avoid the display abnormity problems of the display screen due to the static electricity problems, has a great advantage of reducing the probability of display abnormity of the display screen caused by electrostatic discharge particularly in a situation that the product appearance and the structure of the handheld device have been determined, and improves the user experience.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Method and system of obtuse angle prediction based on reversible information hiding

The present invention belongs to the data hiding technology field, and provides a method and system of obtuse angle prediction based on reversible information hiding. The method comprises: obtaining a carrier image and auxiliary information, wherein the auxiliary information comprises watermark information and a position map, performing preprocessing, determining the size of the scanning block and the image roughness, performing predication of the target pixel according to the maximum predicated angle, the reference pixel quantity and the location of the target pixel, obtaining the prediction error of the target pixel, embedding the watermark information into the carrier image according to the predication error of the target pixel and the storage information of the auxiliary information, forming a secret carrying image, identifying the auxiliary information in the secret carrying image, extracting the watermark information from the secret carrying image, restoring the pixel having correcting the pixel gray value and restoring the carrier image. The method and system of obtuse angle prediction based on reversible information hiding can improve the embedding capacity and the peak signal to noise ratio of the reversible information hiding technology and enhance the predication performance.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Pixel circuit, driving method thereof and display panel

The embodiments of the invention disclose a pixel circuit, a driving method thereof and a display panel. The pixel circuit comprises a data writing unit, a compensation unit, a driving unit, a first storage component and a second storage component; the control end of the data writing unit is connected with a scanning signal input end; the first end of the data writing unit is connected with a datasignal input end; the second end of the data writing unit is connected with a first node; the control end of the compensation unit is connected with a first level signal input end; the first end of the compensation unit is connected with the first node; the control end of the driving unit is connected with the first node; the first end of the driving unit is connected with a light emitting component; the second end of the driving unit is connected with the first level signal input end; the first storage component is located between the first node and a light emitting control signal input end;the second storage component is arranged between the control end of the compensation unit and the second end of the compensation unit; the second electrode of the light emitting component is connected with a second level signal input end; and the driving current of the driving unit is not affected by the threshold voltage of the driving unit. With the above technical schemes of the present invention adopted, under the premise of realizing the compensation function of the pixel circuit, the probability of the failure of a pixel driving circuit and the difficulty of the pixel layout of a high-resolution display device are reduced.
Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD

Array substrate, display panel and displayer

The embodiment of the invention discloses an array substrate, a display panel and a displayer. The array substrate includes a lining substrate, an insulated layer positioned on one side of the liningsubstrate and an electrostatic conductive layer positioned on the side, away from the lining substrate, of the insulated layer. The lining substrate includes a display area and a non-display area around the display area; the insulated layer includes at least one platform-like protrusion, and the vertical projections, on the lining substrate, of the surfaces, away from the lining substrate, of theplatform-like protrusions are positioned within the vertical projections, on the lining substrate, of the surfaces, close to the lining substrate, of the platform-like protrusions; the electrostatic conductive layer includes a first wire and at least one first discharging tip, the first wire is electrically connected with the first discharging tips, and the first discharging tips are formed on lateral slopes of the platform-like protrusions and positioned within the non-display area. The electrostatic conductive layer also includes an auxiliary discharging structure which is arranged oppositeto the first discharging tips. Compared with the prior art, the discharging tips in the array substrate provided by the embodiment are sharp, and static electricity is easily released.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Display module and display device

The invention relates to a display module and a display device. The display module comprises a substrate, an anode layer and a plurality of isolation columns, wherein the anode layer comprises a plurality of anode strips which are formed on the substrate and are parallel to one another; each anode strip comprises a plurality of sub-anodes distributed along the length direction and a plurality of conduction parts for connecting the adjacent sub-anodes in a conducting manner; the flexibility of the conduction parts is better than that of the sub-anodes; the plurality of isolation columns are formed on the anode layer in parallel; and the sub-anodes located between two adjacent isolation columns form pixel regions. According to the display module, each anode strip is divided into the plurality of sub-anodes through the conduction parts. The flexibility of materials of the conduction parts is better than that of the sub-anodes, that is to say, the conduction parts have better bending resistance than the sub-anodes; and meanwhile, the bending stress of the anode strips can be reduced through the bending-resistant conduction parts while the display module is bent, so that fracture of theanode strips is effectively prevented, smooth conduction of the anode strips is ensured and abnormal display of the display device is effectively avoided.
Owner:SUZHOU QUINGYUE OPTOELECTRONICS TECH CO LTD

Organic light emitting display device and driving method thereof

The invention discloses an organic light emitting display device and a driving method thereof. The organic light emitting display device comprises a plurality of pixels, a data driver and a pre-charging circuit, wherein the plurality of pixels comprise a plurality of organic light emitting diodes, and a plurality of driving transistors used for supplying driving currents to the organic light emitting diodes; the data driver is used for transmitting corresponding data signals to the plurality of pixels by means of a plurality of data lines; the pre-charging circuit is used for pre-charging a voltage signal reserved at a previous timing sequence to an initial voltage, and the initial voltage is less than or equal to the minimum voltage of the data signals; and the pre-charging circuit acts before the data driver transmit the corresponding data signals to the plurality of pixels, so as to pre-charge the voltage signals reserved at the previous timing sequence by the plurality of pixels to be less than or equal to the minimum voltage of the data signals. The organic light emitting display device and the driving method thereof have the effects of being simple in timing sequence design, and reducing the power consumption of the data driver.
Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD

Electric quantity detection method of smectic phase liquid crystal screen

The invention discloses an electric quantity detection method of a smectic phase liquid crystal screen. The method comprises the steps of: in an initialization process, removing a headmost pulses and b backmost pulses of m low-frequency high-voltage pulses applied to a row or column, carrying out p times of average sampling on the residual pulses, obtaining sampling average values, and using the minimum value in the (m-a-b) obtained sampling average values as the electric quantity information of the initialization phase; and when scanning is driven, removing c headmost pulses and d backmost pulses of n high-frequency high-voltage pulses applied to a row, carrying out once sampling on the residual pulses, averaging (n-c-d) sampling values, using the average value as a row sampling value, and taking the minimum value in all row sampling values obtained by scanning of all rows as the electric quantity information of the scanning driving phase. According to the invention, the electric quantity information in a screen refreshing process of the smectic phase liquid crystal screen is detected, so that prevention measures are taken before a low electric quantity, and abnormal display caused by waveform distortion of driving pulses is prevented.
Owner:HALATION PHOTONICS CORP

Display panel and display device

The present invention discloses a display panel and a display device. The display area of the display panel comprises a transmissive area and a reflective area; the transmissive area comprises color sub-pixels, and the reflective area comprises black and white sub-pixels; first common electrodes are arranged on a color filter substrate corresponding to both the transmissive area and the reflectivearea; a plurality of first pixel electrodes are arranged at the portion of an array substrate corresponding to the transmissive area, and the first pixel electrodes are corresponding to the color sub-pixels; a plurality of second pixel electrodes, a reflective layer and a plurality of first thin film transistors are arranged at the portion of the array substrate corresponding to the reflective area, and the second pixel electrodes are corresponding to the black and white sub-pixels; one first thin film transistor is correspondingly connected with one first pixel electrode; second common electrodes are arranged on the array substrate corresponding to both the transmissive area and the reflective area, and the second common electrode is arranged between the first thin film transistor and the first pixel electrode; and voltage signals applied to the second common electrode and the first common electrode are the same. According to the technical scheme of the present invention, the displayeffect of the black and white color switching display can be improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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