82results about How to "Avoid burn-in" patented technology

A combination of a bright and dark display pattern and a polarity pattern is used to drive a liquid crystal display device. In the bright and dark display pattern, bright display picture elements and dark display picture elements alternate with each other every one picture element in horizontal and vertical directions. In the polarity pattern, positive-polarity picture elements and negative-polarity picture elements alternate with each other every two picture elements in the horizontal and vertical directions. This driving method allows preventing a phenomenon in which a screen becomes whitish when viewed from any oblique angle (i.e., washing out), that is, what the effect of HT technique based on time division is aiming at, while preventing the occurrence of flicker and burn-in on the screen. Moreover, the driving method enables coarseness-free excellent display, because the bright display picture elements and the dark display picture elements alternate with each other every one picture element.

An object of the present invention is to provide a liquid crystal display device which is capable of preventing single-image prolonged-display screen burn while keeping an image constantly on display.

The liquid crystal display device includes a liquid crystal panel provided with groups of pixel formation portions disposed in a matrix pattern, and a backlight which is capable of turning ON/OFF of lighting for each region which includes a predetermined number of scanning lines. Each frame period for an entered video signal is divided into a first sub-frame period and a second sub-frame period. In the first sub-frame period, the liquid crystal panel is supplied with a data signal based on the entered video signal as the scanning lines are selected. In the second sub-frame period a data signal based on a refresh data for prevention of screen burn is supplied. Each region as a unit of backlight ON/OFF state control is supplied with lighting when pixel formation portion group on the scanning lines served by the region are supplied with data signal based on the entered video signal while lighting is not supplied when data signal based on the refresh data is supplied.

According to the embodiment, the invention discloses a current control method and a device thereof. The method, which is applied to an organic light emitting diode OLED display panel, comprises the following steps: generating corresponding relations between the greyscale brightness of at least three colors and a current; within a blank interval of a display cycle, detecting an actual current valueand actual greyscale brightness of contents which are displayed on the OLED display panel; in accordance with the target greyscale brightness of the contents displayed by the OLED display panel, searching a corresponding relation between the greyscale brightness of each color and the current, so that a target current value is obtained; and comparing the actual current value with a target currentvalue, and adjusting the actual greyscale brightness under the state that the actual current value and the target current value are inconsistent, so that the actual current value is less than or identical to the target current value. According to the current control method and the device thereof provided by the invention, by controlling the actual greyscale brightness of the contents which are displayed by the OLED display panel, the actual current value is less than or equal to the target current value, so that the stability of the current value is maintained, the circumstance that the current value abnormally rises is prevented and a 'burnt-screen' phenomenon of the OLED display panel is avoided.

The invention discloses a display panel, a fabrication method thereof and a display device. The display panel comprises a substrate, a light-emitting layer and a light beam diffusion layer, wherein the light-emitting layer is arranged on the substrate, the light beam diffusion layer is arranged at one side of a light giving-out surface of the light-emitting layer, the light-emitting layer comprises a plurality of pixel units which are arranged in an array way, each pixel unit at least comprises a red light-emitting unit, a green light-emitting unit and a blue light-emitting unit, the light beam diffusion unit comprises a light beam diffusion component corresponding to at least one pixel unit, and the light beam diffusion component is used for expanding a giving-out light beam of the corresponding pixel unit. Since the light beam diffusion component in the light beam diffusion layer can be used for expanding the giving-out light beam of the corresponding pixel unit, the light giving-outarea of the display panel is expanded, the numbers of the light-emitting units are reduced, the power consumption of the display panel is reduced, so that the screen burnt rate of the display panel is reduced, moreover, the accuracy requirement of a mask is also reduced, and the large-size display panel is easier to fabricate.

There is provided a method of driving an electrophoretic display device including a display unit in which an electrophoretic element containing electrophoretic particles is interposed between first and second substrates and in which a plurality of pixels are arranged. The method includes lowering a contrast of the display unit, when a predetermined non-operation period elapses after the display unit displays an image.

The invention discloses an overcurrent protection method, a display panel and a display device, and the overcurrent protection method comprises the steps: setting at least two different detection times for a level period of a driving current, and starting at least two groups of corresponding over-current protection thresholds; respectively detecting at least two real-time currents for at least twodifferent detection times within the level period; comparing the real-time current values with corresponding overcurrent protection thresholds respectively, and if one or more real-time current values exceed the corresponding overcurrent protection threshold, stopping outputting the driving current so as to start overcurrent protection. The display panel is effectively prevented from continuouslyworking under a large short-circuit current, the screen burning problem caused by serious short circuit can be blocked and picked, and protection is more accurate.

The invention discloses a displayer burn-in prevention method and device and a storage medium, and belongs to the technical field of display. The method comprises the steps that the target image frameto be displayed is acquired, and the image information of each display unit in the target image frame is determined; the target display units of which the image information does not change and the duration reaches the preset duration threshold are determined according to the image information of each display unit in the target image frame; and the images of the target display units in the continuous preset number of image frames are changed. The problem of early aging of the OLED material caused by the phenomenon of screen burn-in due to the fact that the OLED displayer displays the same image for a long time can be solved so as to achieve the effects of preventing OLED displayer burn-in and prolonging the service life of the OLED material.

A color field-sequential liquid crystal display device comprising: a liquid crystal panel; a planar light-source unit for emitting light toward the liquid crystal panel; and a signal processor connected to the liquid crystal panel and to the planar light-source unit; wherein the signal processing includes: a comparing unit that compares video signals included in subframes of at least one identical color in each frame of two mutually adjacent video frames; and a polarity reversing unit that reverses the polarities of video signals in mutually adjacent subframes within the same frame, deciding whether or not to reverse the polarities of all video signals of one frame based upon the result of the comparison by the comparing unit, and outputting a video signal having the decided polarity to the liquid crystal panel.

The invention discloses a display control method which is used in a mobile electronic device. The method includes the steps that under a screen-off mode, current contents to be displayed of the mobile electronic device are obtained; according to the current contents to be displayed, pixel point displaying areas corresponding to the current contents to be displayed are determined; a number of groups of pixel points in the pixel point displaying areas are determined; through a preset mode, one group or a number of groups of pixel points in the pixel point displaying areas are alternatively illuminated. The invention also provides a display control device which can prevent screen burn by constant displaying positions.

The invention discloses a dust bag type vacuum cleaner, which comprises a main body and a power supply device. The main body is provided with a motor cavity and a dust collection tank, a dust bag is provided in the dust collection tank, and a clamp for clamping the dust bag is provided on the main body. The bag holder and the suction socket for docking with the dust suction pipe, the dust bag has an opening, the opening of the dust bag communicates with the suction socket, a dust suction motor is arranged in the motor cavity, and the air inlet of the dust suction motor communicates with the dust collection tank, A sound-proof sponge in contact with the outer surface of the motor is provided in the motor cavity. The beneficial effects of the present invention are: reasonable structure, can effectively complete functions such as dust suction, separation and exhaust, strong dust suction and separation capabilities, good filtering effect, low working noise, and good mute effect; when the dust bag is not installed When the dust bag is full, the cover cannot be closed, so as to avoid dust-free work and prevent the motor from burning out; it has a dust-full indicator function, which will prompt the user when the dust bag is full, so that the user can know the dust collection status and clean it in time Or replace the dust bag.

Screen burn on televisions having Internet browser capability is avoided by removing the conventional static icons such as toolbars and buttons from the default browser and replacing their functions with keyboard keys. The invention is especially useful in projection televisions and with keyboards which have keys assigned to browser functions. Favorite URLs can be mapped to a favorite key by holding down the favorite key while a favorite web page is displayed.

The embodiment of the invention discloses a power supply control method, a system module and a mobile terminal. The method comprises following steps of determining access impedance of an access module in the mobile terminal, wherein the access module is located between a power supply module and the system module in the mobile terminal; judging whether the access impedance is greater than a preset impedance threshold value or not; controlling an access switch in the access module to be in a switch-off state if the access impedance is greater than the preset impedance threshold value, thus stopping the power supply module from supplying power to the system module. According to the embodiment of the invention, the power supplied to the system module of the mobile terminal can be stopped timely by detecting whether the access impedance is abnormal or not; the burnout phenomenon is avoided; and the security of the mobile terminal is improved.

The invention provides an intelligent constant display method and mobile equipment. The adaptive use of different algorithm programs is carried out through the adaption of a single-clock mode and a multi-clock mode of an AOD function of the mobile equipment, and specifically, a display region and an algorithm program are determined for the single-clock mode set by a user through a 2bit algorithm program, so that the display area is small, in order to adapt to the small display area, the time, place, date and other information in the single clock window also show a small display effect, the edge burr phenomenon does not exist, and the display effect is improved; a display area and an algorithm program are determined by using a 1bit algorithm program for the multi-clock mode (such as double clocks) set by a user, so that the display area is enlarged, the method can adapt to the display of multiple clocks, and the time, place, date and other information of each clock can be ensured to be presented in the corresponding display area.

The present invention relates to a terminal, a display control method and a storage medium and belongs to the terminal technical field. The terminal includes a control assembly, a display panel and afingerprint sensor; the fingerprint sensor is disposed in the display panel; the control assembly is connected with the fingerprint sensor and the display panel; and the control assembly is configuredto determine a plurality of sub-pixels corresponding to the always-on-display area of the display panel and drive the plurality of sub-pixels to emit light alternately when the terminal is an always-on-display mode, so as to control the display panel to display fingerprint prompt information on the always-on-display area, wherein the fingerprint prompt information indicates the location of the fingerprint sensor. With the terminal, the display control method and the storage medium of the present invention adopted, the screen burnout phenomenon of the display panel can be avoided. The displaycontrol method of the present invention is used for the location prompting of the fingerprint sensor of the terminal.

The invention provides a safe food processor. The safe food processor comprises a machine base, a first stirring cup connected to the bottom of the machine base, and a second stirring cup arranged atthe top of the machine base. A vertically arranged motor is arranged in the machine base; a motor comprising a motor shaft, two ends of the motor shaft extend out of the motor; a safety bottom cover is arranged at the bottom of the machine base; a safety top cover is arranged at the upper end of the machine base, a safety switch assembly is arranged in the machine base, the upper end of the safetyswitch assembly is in linkage with the safety top cover or the second stirring cup, the lower end of the safety switch assembly is in linkage with the safety bottom cover or the first stirring cup, and the food processor can work only after the second stirring cup and the safety bottom cover are arranged in place; or the food processor can work only after the first stirring cup and the safety topcover are arranged in place. The safety top cover and the safety bottom cover guarantee that the two ends of the motor shaft cannot be exposed in the working process of the food processor, and the safety of a user is guaranteed; and meanwhile, motor damage caused by overlarge load when the first stirring cup and the second stirring cup are mounted at the same time can be avoided.

The invention provides a method for regulating the position of a display object. The method comprises the following steps of: under an always-on display state, obtaining a gravity value detected by a gravity detection device; determining a gravity level corresponding to the gravity value; and on the basis of the gravity level, regulating the display position of the display object on the screen of the mobile terminal under the always-on display state. Through the method for regulating the position of the display object, and the mobile terminal provided by the embodiment of the invention, the mobile terminal can carry out dynamic regulation and display on the display position of the display object according to the gravity level of the gravity value borne by the mobile terminal. Since the display object is dynamically displayed, a screen burning phenomenon caused for the screen when the display object is subjected to static display can be avoided, the service life of the mobile terminal can be prolonged, and the use experience of users is improved.

The embodiment of the invention relates to the technical field of display, in particular to a method for starting screen protection of display equipment and the display equipment, and the method comprises the steps: obtaining a plurality of partition images corresponding to a to-be-displayed image on a display, and determining the brightness information of each partition image according to the gray value of each pixel in each partition image; and for each partition image, when it is determined that the duration in which the brightness information of the partition image of the preset proportiondoes not change exceeds the preset duration, controlling a display screen of a display to protect the display screen. In the embodiment of the invention, the burn-in phenomenon caused by the fact that the brightness information of the display interface is not changed for a long time can be avoided by utilizing screen protection, and the service life of the display is prolonged.

The invention relates to a display control method, a display control device and a storage medium. The display control method is applied to the terminal comprising an OLED display screen, and comprisesthe following steps: determining that the OLED display screen displays a plurality of pixels of the same pattern within a specified time length, and the plurality of pixels are arranged in an array;controlling the plurality of pixels to display in a first interval display mode, wherein the first interval display mode comprises a row interval display mode or a column interval display mode or an oblique row interval display mode; and controlling the plurality of pixels to be switched to a second interval display mode in a gradual change display mode, wherein the second interval display mode comprises a row interval display mode or a column interval display mode or an oblique row interval display mode, and the second interval display mode is different from a pixel row or a pixel column or apixel oblique row in an open state in the first interval display mode. According to the invention, a burn-in phenomenon can be effectively prevented.

The embodiment of the present application discloses a sensor control method, a mobile terminal and a computer-readable storage medium. The method comprises the following steps: turning off an infraredsensor under the screen in an off-screen display AOD mode; when receiving the invocation request of the target application to the infrared sensor under the screen, the priority of the target application is obtained; if the priority of the target application is lower than the preset priority, the preset measurement results are reported to the target application. Embodiments of the present application can avoid the occurrence of screen burning phenomenon.

The invention discloses a mounting mechanism of a diesel engine generator set acoustic enclosure. The mounting mechanism of the diesel engine generator set acoustic enclosure comprises a side edge plate; a top cover plate is arranged at the upper end of the side edge plate; inner supporting legs are symmetrically and fixedly arranged on the two sides of the surface of the lower end of the top cover plate; a frame groove is formed in the middle position of the surface of the upper end of the top cover plate; side wall square grooves are formed in the positions, close to the upper side, of the surfaces of the right ends of the inner supporting legs; a front closing plate is mounted on the surface of the front end of the side edge plate; and a circular air hole is formed in the middle position of the surface of the right end of the side edge plate. According to the mounting mechanism of the diesel engine generator set acoustic enclosure, by means of the elastic layer effect of an air layer, the overall sound insulation effect of the acoustic enclosure can be further improved, the acoustic enclosure is assisted in thoroughly blocking leaked sound, dismounting is convenient, the storagespace in the mounting mechanism is enlarged, and therefore, the bigger acoustic enclosure can be fixedly mounted conveniently, and the mounting mechanism can adapt to the mounting of acoustic enclosures with different types conveniently; front-back air communication of the mounting mechanism can be achieved; the interior of the mounting mechanism can be effectively cooled in time; and the burningphenomenon caused by over-high heat in a generator set is avoided.

The invention belongs to the technical field of electric power construction, and particularly relates to a rotary excavating drilling machine used for electric pole installation during electric powerconstruction. By aiming at the problems that a load for a motor is huge since an existing rotary excavating driving motor frequently carries out spiral plate positive and negative rotation, the invention now puts forward the following scheme that the rotary excavating drilling machine comprise a fixed frame of a C shape, and a bearing box which is internally provided with a hollow cavity of a rectangular structure; a sliding bearing subjected to coaxial distribution is independently embedded into the middle of the top end and the middle of the bottom end of the bearing box; in addition, the middle of each of the two sliding bearings is independently in sliding connection with a spacing rod subjected to the coaxial distribution; the same sliding box is fixed between the opposite ends of thetwo spacing rods; the outer walls of two opposite sides of the sliding box are independently fixedly provided with a buffer spring; and the buffer springs are independently sheathed to the outer circumferential walls of the two spacing rods. When the rotary excavating drilling machine is used, a target position can be subjected to rotary excavation only by starting the driving motor, in addition,when soil stuck to the spiral plate needs to be removed, high-frequency vibration can be transferred to the spiral plate only by starting a vibration motor, and therefore, the soil on the spiral plate can be shaken off.