40results about How to "Solve uneven display" patented technology

Disclosed are a display device and a pixel circuit of the display device. According to a first switch transistor, in a threshold value compensation phase, signals provided by a power source control line and a light-emitting control line are responded to. The first switch transistor is switched on, and threshold value voltage information of a driving transistor is stored in a connecting node of a second electrode of the driving transistor and a light-emitting component. According to a second switch transistor, in a data writing-in phase, the first switch transistor is switched off, the second switch transistor is switched on by responding to a signal provided by a scanning line, and a data voltage provided by a data line is stored at a connecting node of the first end of a storage capacitor and a control electrode of the driving transistor. The compensation of threshold value voltage drifting of a TFT device and the light-emitting component is achieved, and the problem of uneven display caused by the threshold value voltage drifting of the driving transistor and the threshold value voltage of the light-emitting component is solved.

The present invention describes a pixel driving circuit, a driving method, and an organic light-emitting display panel. The pixel driving circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor and a capacitor. A first node is arranged between the fourth transistor and the fifth transistor. The seventh transistor is coupled in series between a reference voltage line and the first node. The eighth transistor is coupled in series between the reference voltage line and the anode of a light-emitting element. According to the invention, the pixel driving circuit solves the display unevenness problem caused by the reasons of threshold voltage drift, device degradation and the like in the prior art. Meanwhile, the grid potential stability of a driving transistor, under the influence of a leakage current generated due to the fact that the voltage difference between the two ends of a switching transistor is relatively large in the prior art, can be improved at the same time.

The invention discloses a peripheral compensation system of a pixel matrix, a method thereof and a display system. The peripheral compensation system comprises a grid scan driving module 200, a column data driving module 300 and a compensation module 400. The compensation module 400 is respectively connected with M columns of pixel units 101 via M columns of feedback signal lines and is used for detecting the variation of the electrical characteristics of a pixel matrix 100 so as to send a second display signal to the pixel matrix 100 and compensate each of the pixel units 101. According to the technical scheme of the invention, the addition of first display signals and second display signals in the pixel units is realized, so that accurate gamma correction of first display signals is realized at the same time. Meanwhile, the structure is simple. A first digital-to-analog conversion module and a second digital-to-analog conversion module are also low in the number of bits. On the condition that the addition mode of analog domains is conducted, an original high-voltage analog adder can be converted to a medium-voltage adder or a low-voltage adder.

The invention discloses an embedded type touch screen and a display device. A public electrode layer integrally connected in an array substrate is divided to form a plurality of touch drive sub-electrodes and a plurality of public sub-electrodes, the touch drive sub-electrodes and the public sub-electrodes are independent of each other and arrayed at intervals, the touch drive sub-electrodes are electrically connected through touch drive signal lines to form touch drive electrodes, and the public sub-electrodes are electrically connected through public electrode signal lines to form public electrodes; touch sensing electrodes are arranged on opposite substrates, the touch sensing electrodes and the touch drive electrodes are arranged in a cross mode, the touch drive electrodes are driven in a time-share mode, and therefore the touch function and the display function are achieved. Due to the fact that the touch drive electrodes in the touch screen are composed of the multiple touch drive sub-electrodes and the public electrodes are composed of the multiple public sub-electrodes, the signal transmission loads of the touch drive electrodes and the public electrodes are relatively close, the transmission speed of public signals in the public electrodes in the display stage and the transmission speed of public signals in the touch drive electrodes in the display stage are also relatively close, the problem that displayed images are not even can be solved, and image quality can be improved.

The invention provides a display apparatus and a pixel circuit thereof. The pixel circuit generates the threshold voltage information of a driving pipe by means of source following, the threshold voltage of the driving pipe and the reference voltage related to the gray scale information are generated at the two ends of a first capacitor through the voltage dividing of the first capacitor and a second capacitor, during the luminescence, the reference voltage maintains constant, the driving current through a luminescent device is irrelevant to the threshold voltage of a driving transistor and the luminescent device, and the threshold voltage deviation of the driving transistor and the luminescent device can be compensated, so that the nonuniform display problem of a display panel is solved. The display apparatus emits light line by line and overlaps scanned control signals to reduce the line programming time of the circuit, so that the demands for high-resolution and high-frame-frequency display panels can be met while the high precision is obtained. When the light is emitted by a concentrated way, the pixel circuit reduces the complexity and increases the luminescence time by means of grouped programming and grouped luminescence.

The invention discloses an embedded type touch screen and a display device. A public electrode layer integrally connected in an array substrate is divided to form a plurality of touch drive sub-electrodes and a plurality of public sub-electrodes, the touch drive sub-electrodes and the public sub-electrodes are insulated from each other and arrayed in a cross mode, each touch drive electrode comprises a plurality of touch drive sub-electrodes, each touch drive sub-electrode is located between two corresponding adjacent public electrodes; each public electrode comprises a plurality of public sub-electrodes; touch sensing electrodes are arranged on opposite substrates, the projection of each touch sensing electrode in the array substrate is located in an area where the public electrodes are located, the touch drive electrodes are driven in a time-share mode, and therefore the touch function and the display function are achieved. Due to the fact that the touch drive electrodes are composed of the multiple touch drive sub-electrodes and the public electrodes are composed of the multiple public sub-electrodes, the signal transmission loads of the touch drive electrodes and the public electrodes are relatively close, the transmission speed of public signals in the public electrodes in the display stage and the transmission speed of public signals in the touch drive electrodes in the display stage are also relatively close, the problem that displayed images are not even can be solved, and image quality can be improved.

The invention discloses a display panel and a compensation method of the display panel, wherein the display panel comprises at least one pixel compensation circuit and a plurality of pixel driving circuits; the pixel compensation circuit comprises a voltage adjusting module, a conversion module, a first storage module and a comparison module; each pixel driving circuit comprises a data writing module, a driving module, a second storage module, a sensing module and a light emitting element; and the pixel compensation circuit is used for compensating the threshold drift of the driving modules. According to the invention, the threshold drift of the driving modules in the display panel is compensated, and the problem of uneven displaying caused by the threshold drift of an organic light emitting display is solved.

The embodiment of the invention discloses an array substrate, a display panel, and a display device. The array substrate comprises a display area, a display signal line, a first connecting line, a second connecting line and a dummy connecting line arranged in the display area, and a driving circuit arranged in a non-display area. The display signal line and the second connecting line both extend in a second direction and are arranged in a first direction. The first connecting line extends in the first direction and is arranged in the second direction. The display signal line is electrically connected with the driving circuit through the first connecting line and the second connecting line. At least one of two ends of the second connecting line extends to the non-display area. The dummy connecting line is located in a same straight line with the first connecting line or the second connecting line. At least one of two ends of the dummy connecting line extends to the non-display area. According to the array substrate provided by the embodiment of the invention, the problem of non-uniform display caused by uneven wiring of the first connecting line or the second connecting line can beavoided, so as to improve the display effect.

The invention relates to a driving method and a driving device of a display panel. The display panel comprises a source driving circuit, a gate driving circuit, a plurality of gate signal lines electrically connected to the gate driving circuit, and the data lines electrically connected to the source driving circuit. The driving method comprises the following steps of: generating the first delay signals with time from short to long respectively corresponding to the data lines from a far to near connection distance with the source driving circuit. Then, generating the second delay signals withtime from short to long respectively corresponding to the data lines from a near to far horizontal distance with the gate driving circuit. Finally, the source driving circuit outputs driving signals to each data line according to the first delay signal and the second delay signal corresponding to each data line, so that each pixel point driven by different data lines on the same gate line has thesame charging time.

The invention provides a liquid crystal display and a backlight module thereof. The backlight module comprises a backlight source and a light guiding plate, the backlight source is arranged on the side surface of the light guiding plate, an accommodation part for accommodating functional modules is arranged on the light guiding plate, the backlight module further comprises a compensation light source arranged on the light guiding plate, and the accommodation part is located between the backlight source and the compensation light source. According to the backlight module, the backlight module comprises the compensation light source, the backlight source and the compensation light source are located on two sides which are oppositely arranged, and light compensation can be conducted on the part blocked by the functional modules in the light guiding plate through the compensation light source to solve the problem of nonuniform displaying due to the fact that the light of the backlight source is blocked by the functional modules and improve displaying quality of the liquid crystal display.

The invention discloses a display panel and a display device, wherein the display panel comprises a plurality of scanning lines, a multi-level shifting register, a plurality of compensation units, wherein the plurality of scanning lines are arranged along a first direction and extend along a second direction, and are positioned in a display area; a starting signal input end of a (M+2)th-level shifting register is connected with a first output end of a Mth-level shifting register, a second output end of each-level shifting register is connected with one corresponding scanning line; the plurality of compensation units are positioned on a peripheral circuit area; a control end of each compensation unit is used for inputting a clock signal, and an output end is connected with a corresponding scanning line which is connected with one shifting register; an input end is connected with a corresponding first output end of a first N-level shifting register of the shifting register, and is used for compensating signals on the scanning lines according to the control end and input end thereof, wherein M and N are positive integer. According to the technical scheme provided by the embodiment ofthe invention, the scanning signal on the scanning lines can be compensated, display uniformity can be improved, the border of the display panel is small.

The invention provides a pixel circuit and a display device. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a first capacitor and a light emitting unit. The first end of the first capacitor is connected to a control electrode of the first transistor, and a second end is connected to a power supply voltage line via the second transistor. The third transistor is connected between the first capacitor and a reference level signal line, with a control electrode being connected to a scanning control signal line. The fifth transistor is connected between a data signal line and the first capacitor, with a control electrode being connected to the scanning control signal line. A grid electrode of the fourth transistor is connected to its own first electrode. The fourth transistor is connected between the third transistor and the first capacitor, or the fourth transistor is connected between the fifth transistor and the first capacitor. The invention can solve the problem of display unevenness which may be caused due to different threshold voltages of drive transistors on a display panel and IR-Drop on a VDD line.

The invention provides a voltage programming AMPLED pixel circuit which comprises a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a fifth switch transistor, a sixth switch transistor, a seventh switch transistor, a driving transistor, a first capacitor, a second capacitor and an organic light emitting diode. The invention provides the voltage programming AMPLED pixel circuit and a driving method thereof to solve the problems in the prior art that the driving transistor compensated by a conventional compensation method is in a bias state in the all light emitting stage, the changes of a TFTs threshold voltage and a migration rate are accelerated, and the compensation effect of the conventional compensation method is substantially lowered when the change of the threshold voltage reach a certain degree.

The invention discloses a packaging method of a special-shaped display panel, the special-shaped display panel and a display device. The packaging method comprises the steps of defining a gluing areawhich can cover a target special-shaped pattern and is regular in shape on a cover plate, wherein the shape and size of the target special-shaped pattern are the same as those of the special-shaped display panel; forming a packaging adhesive in the gluing area; attaching the cover plate to the substrate with the target special-shaped pattern, so that a display area in the target special-shaped pattern is located in the gluing area; and cutting the laminated substrate and cover plate according to the target special-shaped pattern to obtain the special-shaped display panel. The packaging methodis simple in process and can be suitable for special-shaped display panels of different shapes and sizes. The display area in the target special-shaped pattern after attachment can be completely filled with colloid, and uniform box thickness is kept. The problem of non-uniform display is solved, and the display effect is improved.

A preparation method of a low-temperature poly-silicon thin film transistor comprises the following steps of forming a first amorphous-silicon layer on a substrate; forming doping layers on regions, corresponding to a source doping layer and a drain doping layer to be formed, on the first amorphous-silicon layer; carrying out laser irradiation on the substrate formed with the first amorphous-silicon layer and the doping layers so as to convert the first amorphous-silicon layer to a first poly-silicon layer; forming a second amorphous-silicon layer on the first amorphous-silicon layer and the doping layers; and carrying out laser irradiation on the substrate formed with the second amorphous-silicon layer to form a second poly-silicon layer, the source doping layer and the drain doping layer. According to the preparation method of the low-temperature poly-silicon thin film transistor, the first poly-silicon layer also can be taken as a second amorphous-silicon thin film to be converted into a grain structure induction layer of the poly-silicon layers, the requirements of excimer laser pulse energy stability and light beam energy density uniformity during preparation of the low-temperature poly-silicon thin film can be effectively reduced, and the problem of non-uniform display caused by laser annealing processing can be effectively solved.

The invention relates to the technical field of three-dimensional models, and concretely relates to a method for lightening a three-dimensional model. Through filtering, compression, coding and display acceleration of original model data, while geometric and structural relations and attribute information of products can be completely described, the volume of a model file is reduced, the drawing speed is increased, three-dimensional model simplification considering texture maintenance is realized, and based on comprehensive method research of a three-dimensional model and a scene based on computer vision, a model topological structure relation and spatial coding scene pyramid establishment are kept, so the purpose of quickly displaying and interacting a three-dimensional model by fully utilizing limited computing power, rendering power and storage space of mobile equipment is achieved, a user can conveniently obtain product information anytime and anywhere, meanwhile, better appearance attributes and model details are reserved, and good model display capabilities such as clear textures and obvious features are achieved.

The invention provides a driving circuit and a driving method of a display panel and a display device. The display panel comprises a first half screen and a second half screen, the driving circuit comprises a main time sequence control module, an auxiliary time sequence control module, a system-level chip and a delay compensation module, and the delay compensation module determines a voltage compensation value Vbc according to feedback signals of the main time sequence control module and the auxiliary time sequence control module. According to the voltage compensation value Vbc, the system-level chip enables the voltage value of the data signal output to the second half screen by the auxiliary time sequence control module to be increased by Vbc, so that the voltage values of the pixel units in the second half screen and the pixel units in the first half screen are consistent after the pixel units are charged by the same frame of data signal. According to the driving circuit provided by the invention, the pixel unit in the second half screen can be charged to the target voltage value by detecting the delay time value and increasing the voltage value of the data signal output by the auxiliary time sequence control module, so that the problem that the display of the left and right half screens of the display panel is not uniform is solved.

The present invention provides a pixel driving circuit, a driving method, a display substrate and a display device. The pixel driving circuit comprises N pixel driving units connected with the same data cable, wherein N is an integer greater than 1, and the n-th pixel driving unit is used for driving a light emitting element in an n-th pixel unit to emit light, wherein n is a positive integer smaller than or equal to N; and the n-th pixel driving unit includes an n-th reset module, an n-th driving transistor, an n-th charging / discharging module, an n-th compensation control module and an n-th light emission control module. With the pixel driving circuit of the present invention adopted, the number of transistors used for compensation and the number of data cables used for compensation can be decreased, the number of pixels per inch (PPI) can be high, current flowing through each light-emitting element is not affected by the threshold voltage of driving transistors, and the uniformity of image display can be ensured.

Disclosed are a display device and a pixel circuit of the display device. According to a first switch transistor, in a threshold value compensation phase, signals provided by a power source control line and a light-emitting control line are responded to. The first switch transistor is switched on, and threshold value voltage information of a driving transistor is stored in a connecting node of a second electrode of the driving transistor and a light-emitting component. According to a second switch transistor, in a data writing-in phase, the first switch transistor is switched off, the second switch transistor is switched on by responding to a signal provided by a scanning line, and a data voltage provided by a data line is stored at a connecting node of the first end of a storage capacitor and a control electrode of the driving transistor. The compensation of threshold value voltage drifting of a TFT device and the light-emitting component is achieved, and the problem of uneven display caused by the threshold value voltage drifting of the driving transistor and the threshold value voltage of the light-emitting component is solved.

The invention provides a display panel and a display device. The display panel comprises a color film substrate and an array substrate; the color film substrate comprises a display area and a terminalarea; the terminal area comprises a first supporting column, the display area comprises a second supporting column, the upper end of the first supporting column and the upper end of the second supporting column are both arranged on the color film substrate, and the surface area of the lower end face of the first supporting column is not smaller than that of the lower end face of the second supporting column. When the upper substrate and the lower substrate of the display panel are stressed, the deformation quantity of the first supporting columns is small, and a sliding distance is small; after an external force is removed, the first supporting columns can rapidly recover to the initial state, the consistency of a box thickness of the terminal area of the display panel is still good, andthe display brightness of a display screen is uniform.

The present disclosure provides an in cell touch panel and a display device. An entire common electrode layer on an array substrate is divided so as to form a plurality of touch driving electrodes and a plurality of common electrodes which are insulated from each other and arranged in a crisscross manner. Each touch driving electrode includes a plurality of touch driving sub-electrodes, and each touch driving sub-electrode is arranged between the adjacent common electrodes. Each common electrode includes a plurality of common sub-electrodes. Touch sensing electrodes are arranged on an opposite substrate, and a projection of each touch sensing electrode onto the array substrate is located at a region where the common electrode is located. The touch driving electrodes are driven in a time-division manner, so as to achieve a touch function and a display function.

The invention discloses a peripheral compensation system of a pixel matrix, a method thereof and a display system. The peripheral compensation system comprises a grid scan driving module 200, a column data driving module 300 and a compensation module 400. The compensation module 400 is respectively connected with M columns of pixel units 101 via M columns of feedback signal lines and is used for detecting the variation of the electrical characteristics of a pixel matrix 100 so as to send a second display signal to the pixel matrix 100 and compensate each of the pixel units 101. According to the technical scheme of the invention, the addition of first display signals and second display signals in the pixel units is realized, so that accurate gamma correction of first display signals is realized at the same time. Meanwhile, the structure is simple. A first digital-to-analog conversion module and a second digital-to-analog conversion module are also low in the number of bits. On the condition that the addition mode of analog domains is conducted, an original high-voltage analog adder can be converted to a medium-voltage adder or a low-voltage adder.

The invention relates to a display compensation method and a display. The method comprises the following steps: acquiring a display image of the display; determining a to-be-compensated area corresponding to the display image, wherein the to-be-compensated area comprises at least one first to-be-compensated area and at least one second to-be-compensated area; and compensating the display image based on the to-be-compensated area, wherein the compensation mode of at least one to-be-compensated area is different from the compensation mode of at least one second to-be-compensated area. According to the invention, the to-be-compensated area corresponding to the display image is divided into different to-be-compensated areas, and different compensation modes are adopted in the different to-be-compensated areas to compensate the display image, so that the problem that non-uniform display of local details of the display image cannot be repaired by using a single compensation area can be solved; therefore, fine compensation for different display areas is realized, the compensation effect is further improved, and the phenomenon of non-uniform display is improved.