57results about How to "Improve PPI" patented technology

The invention provides a pixel circuit, a driving method and a display device. The pixel circuit comprises multiple sub-pixel circuits, wherein a threshold value compensation module is arranged inside one sub-pixel circuit, and voltage compensated for through the threshold value compensation module is shared in the other sub-pixel circuits through a compensation sharing circuit. Because in the actual application, pixel circuits which are close are approximate in aging degree, a threshold value compensated for through the threshold value compensation module of one sub-pixel circuit can be used for threshold compensation on the other sub-pixel circuits. Because just one threshold value compensation module needs to be arranged for multiple pixels, the average area occupied by each pixel is decreased, and the PPI of the display device is conveniently improved.

The invention discloses a three-dimensional display method and a three-dimensional display device which belong to the technical field of display. The three-dimensional display device comprises a pixels array and a raster, and odd number of columns and even number of columns are mismatched by a preset length in longitudinal direction. The three-dimensional display method comprises the following steps: obtaining original brightness values of sub pixels of various colors of pixels in an original signal of a to-be-displayed image; determining the compensation pixel of each sub pixel, wherein part of compensation pixels corresponding to the sub pixel are positioned in columns where the sub pixels are located; part of compensation pixels are positioned in adjacent columns of the columns where the sub pixels are located; for the sub pixels of the pixel arrays, calculating target brightness values of sub pixels according to original brightness values and occupied weight of compensation sub pixels with the same color as the sub pixels in the compensation pixels corresponding to the sub pixels; and displaying the to-be-displayed images according to target brightness values of the sub pixels of the pixel arrays and dividing the displayed image to two views through the raster. By utilizing the three-dimensional display method and the three-dimensional display device, PPI of the image is improved, and the three-dimensional display effect of the image is improved.

The invention discloses a display device and a display method thereof and belongs to the technical field of display. The display device comprises a pixel array and an optical grating; the pixel array comprises a plurality of rows of pixels; each pixel comprises at least two sub-pixels; each row of sub-pixels is composed of sub-pixels of at least three colors circularly arranged, and each row of sub-pixels comprises the same number of sub-pixels; the upper edges of the sub-pixels in each odd-number row are aligned to each other, and the upper edges of the sub-pixels in each even-number row are aligned to each other; each odd-number row of the sub-pixels and the even-number row of the sub-pixels are staggered longitudinally from each other by a preset length, and every two adjacent sub-pixels are different in color; the shading region of the optical grating is used for shielding partial region of the pixel array. According to the pixel array, one sub-pixel and the other two sub-pixels adjacent to the sub-pixel in the same row are formed into an inverted triangle structure; when images are displayed by use of the pixel array, one sub-pixel is capable of borrowing the adjacent sub-pixels and also can be borrowed by the adjacent sub-pixels, and therefore, the display resolution is greater than the physical resolution and the PPI of the display device is increased.

An embodiment of the invention provides a pixel arrangement structure, a display device and a display method thereof, relates to the technical field of display, and realizes public use of pixels. The pixel arrangement structure includes at least one pixel unit, the pixel units are parallel to each other and include a plurality of first pixels and second pixels which are arranged at intervals. The first pixels include first sub pixels located in the first row, second sub pixels located in the second row and third sub pixels located in the third row and the fourth row, and the second pixels include the third sub pixels located in the first row and the second row, the first sub pixels located in the third row and the second sub pixels located in the fourth row. The first sub pixels and the second sub pixels are arranged transversely, and the third sub pixels are arranged longitudinally.

The invention discloses a pixel structure of a liquid-crystal display device. The pixel structure comprises a plurality of scanning lines, a plurality of data lines and a plurality of pixel units, wherein the plurality of scanning lines are arranged in parallel; the plurality of data lines are arranged along the direction vertical to the scanning lines; the plurality of pixel units are defined by the crossed scanning lines and data lines; each pixel unit comprises a liquid-crystal capacitor, a first transistor and a second transistor; the first transistor and the second transistor are connected in series; and the second transistor is coupled to the liquid-crystal capacitor. The pixel structure is characterized in that any scanning line is connected with the first transistor in the pixel unit positioned at one side of the scanning line, and is also connected with the second transistor in the pixel unit positioned at the other side of the scanning line. The invention also discloses the liquid-crystal display device. The pixel structure disclosed by the invention has the advantages that the transistors at different positions in two adjacent pixel units are directly connected to any scanning line, and the quantity of the scanning lines is reduced by a half, so that not only is the space saved, but also the area of the storage capacitor can be increased or the pixel size can be reduced, and the PPI and the display effect can be improved.

The invention provides a 3D display device, a control method and control device of the 3D display device. The control method includes the following steps that: first control signals are outputted at a first time period of the output of one frame of image, and therefore, the left eye of a user can observe a first effect of a first view on a display panel through a grating structure, and the right eye of the user can observe a first effect of a second view on the display panel through the grating structure; and second control signals are outputted at a second time period of the output of one fame of image, and therefore, the left eye of the user can observe a second effect of a first view on the display panel through the grating structure, and the right eye of the user can observe a second effect of a second view on the display panel through the grating structure. With the control method of the invention adopted, the left eye and right eye of the user can see more image information, and therefore, the PPI (pixel per inch) of a 3D display effect can be improved.

The invention relates to a pixel structure, a display substrate and a display device. The pixel structure comprises a plurality of first pixels, second pixels and third pixels, wherein each first pixel comprises a first sub-pixel which is arranged on the right upper side and a second sub-pixel which is arranged on the left lower side, each second pixel comprises a second sub-pixel which is arranged on the right upper side and a third sub-pixel which is arranged on the left lower side, each third pixel comprises a third sub-pixel which is arranged on the right upper side and a first sub-pixel which is arranged on the left lower side, the second pixel is arranged above the right side of the first pixel, the third pixel is arranged above the right side of the second pixel, and the first pixel is arranged above the right side of the third pixel. By adopting the technical scheme, when the pixel structure displays an image with an oblique boundary, a transverse boundary and / or a vertical boundary, the boundary of the image is formed by alternately arranging the first sub-pixel, the second sub-pixel and the third sub-pixel, and the color crisperding phenomenon can be avoided.

The invention provides a pixel structure and a display panel, which relate to the technical field of display. The pixel structure comprises m rows of pixel unit groups, each row of pixel unit groups comprises a plurality of pixel units, each pixel unit comprises a first sub-pixel, two second sub-pixels and a third sub-pixel, the two second sub-pixels are arranged in the same row in the first direction, and the first sub-pixel and the third sub-pixel are located on the two sides of a center connecting line of the two second sub-pixels, so that the problem that moire patterns are formed during low PPI display can be effectively solved. Furthermore, the pixel structure comprises a first layout area and a second layout area, the angles between the center connecting line of the first sub-pixeland the second sub-pixel in the two layout areas and the first direction are different, and thus, the distances between the nth row of pixel unit groups and the (n-1)th row of pixel unit groups and the (n+1)th row of pixel unit groups are different, so that a light-transmitting gap is formed between the two rows of pixel unit groups with relatively large row distances, and the light transmittanceof the pixel structure is improved.

The invention discloses a pixel circuit, a driving method thereof and a display panel. The pixel circuit comprises a first data writing unit, a second data writing unit, a first light emitting unit, asecond light emitting unit, a sharing capacitor, a first compensation subunit and a second compensation subunit. The first data writing unit is externally connected with a first data signal and is electrically connected with the first light emitting unit through a first node. The second data writing unit is externally connected with a second data signal and is electrically connected with the second light emitting unit through a second node. The first compensation subunit is located between the first light-emitting unit and the shared capacitor, and the first compensation subunit is externallyconnected with a switching signal and a first control signal. The second compensation subunit is located between the second light-emitting unit and the shared capacitor, and the second compensation subunit is externally connected with a switching signal and a second control signal. The first compensation subunit and the second compensation subunit can achieve threshold compensation of the two light-emitting units through one shared capacitor, a smaller layout space is occupied, and therefore the PPI of the display panel is improved.

An AMOLED display device and an array substrate thereof are disclosed. The array substrate of the AMOLED display device includes a baseplate, a surface-shaped power line, a point-shaped power line, and a plurality of insulating layers arranged between the surface-shaped power line and the point-shaped power line. The surface-shaped power line and the point-shaped power line are configured to provide a positive polarity power source to a light-emitting diode. The surface-shaped power line is formed on the baseplate, and the point-shaped power line is formed on the plurality of insulating layers. The surface-shaped power line and the point-shaped power line are electrically connected to each other through a via hole.

The invention discloses a display device. The display device comprises an array substrate, wherein the array substratecomprises multiple data lines, multiple gate lines and multiple pixel unitsdefined by the mutually orthogonal data lines and gate lines; each pixel unit comprises multiple sub-pixels, the sub-pixels are inclined to the gate lines in the same inclination manner and are not overlapped, and the length of at least one side of an area where the multiple sub-pixels in eachpixel unit are located is larger than the width of the pixel unit. Through inclination of the sub-pixels, the width of the area where the multiple sub-pixels in each pixel unit are located is enabled to be increased, so that PPI (pixels per inch) of the display device is improved.

The invention discloses a display panel, a display device and a driving method of the display panel. The display panel includes a first substrate and a second substrate which are arranged oppositelyrelative to a box, point light sources arranged in an array are arranged on the side, away from the second substrate, of the first substrate, optical coupling devices corresponding to the point light sources one to one are arranged on the side, close to the second substrate, of the first substrate, optical grating layers are arranged on the sides, away from the first substrate, of the optical coupling devices, and a liquid crystal layer is arranged between the first substrate and the second substrate; and the optical coupling devices are used for reflecting light rays which are emitted by the corresponding point light sources and penetrating through the first substrate to reach the optical coupling devices into the first substrate, and the light rays are completely reflected and propagated in the first substrate. According to the display panel, the display device and the driving method of the display panel, the problems that according to transparent liquid crystal display (LCD) panels inthe prior art, the display brightness is uneven and energy is low in the whole LCD panels due to use of side-entry backlight modules are solved.

The invention discloses a thin film transistor and a manufacturing method thereof. The thin film transistor comprises a substrate and a bottom gate arranged on the substrate, an active layer is also arranged above the bottom gate, the active layer comprises a part arranged in parallel with one side surface of the bottom gate, and a top gate is also arranged on the other side of the part, oppositeto the side surface of the bottom gate, of the active layer. Different from the prior art, compared with a planar thin film transistor, the thin film transistor has the advantages that the critical dimension (CD) of the channel process of the thin film transistor can be shortened, so that the occupied area of the whole device is reduced, and the PPI of a panel is improved; and the vertical structure thin film transistor with the double-gate structure has higher electron mobility and device stability.

The invention provides a pixel internal and external compensation compatible circuit. The pixel internal and external compensation compatible circuit is connected with a luminous element; the luminouselement is located between a first power supply and a second power supply, the compatible circuit is connected with a driving chip through a signal multiplexing line, and the driving chip is providedwith a switch, and a digital-to-analog converter and an analog-to-digital converter which can be connected with the switch; the compatible circuit further comprises a first driving TFT located between the first power supply and the luminous element, a first switching TFT located between the first driving TFT and the signal multiplexing line, a second switching TFT located between the first driving TFT and the first power supply, a storage capacitor located between the first driving TFT and the second power supply, a third switching TFT located between the first driving TFT and the storage capacitor and a fourth switching TFT located between the first driving TFT and the luminous unit. The compatible circuit has the capabilities of internal compensation and external compensation, and the flexibility and compensation range of pixel compensation are improved.

The invention discloses a display device and a display method. The display device includes a light source, a light guide plate, and a liquid crystal panel; the liquid crystal panel includes a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer is arranged between the first substrate and the second substrate; light emitting graphs are arranged on the light guide plate; incident light of the light source forms at least three colors of monochromatic light beams through the light emitting graphs of the light guide plate; the light source is lighten at different time slots, the at least three colors of monochromatic light beams are irradiated to identical sub pixel electrodes of the first substrate within each frame time at different time slots to form reflective light beams; and the reflective light beams are modulated by the liquid crystal layer and are displayed. In the embodiment of the invention, the light source is lightened at different time slots, the at least three colors of monochromatic light beams are irradiated to identical sub pixel electrodes of the first substrate within each frame time at different time slots, i.e., at least three colors of monochromatic light beams can be displayed at each sub pixel point position, and then the PPI of the display device can be improved.

The invention relates to a mask plate and a fabrication method thereof. The method comprises the steps that a mask plate raw material is provided; one side of the mask plate raw material is etched sothat the thickness of the mask plate raw material can be reduced; the etched side of the mask plate raw material is subjected to smooth polishing treatment; the smoothly polished mask plate raw material is etched, pixel openings are etched in the mask plate raw material, and the mask plate with the pixel openings is formed. Firstly, through etching, the thickness of the mask plate raw material isreduced, after the mask plate is subjected to smooth polishing treatment, the mask plate with a smaller pixel opening interval can be etched out of the mask plate raw material, and thus the vapor deposition PPI of the mask plate is improved; and it is effectively avoided that the mask plate is etched through, the structure of the mask plate can be more steady, the tensile performance of the mask plate can be better, and the service life of the mask plate is effectively prolonged.

The invention provides a pixel structure, a mask plate and a display device. The pixel structure comprises a plurality of pixel big groups which are arranged in an array mode, wherein each pixel big group comprises a first pixel small group and a second pixel small group which are adjacently arranged and mutually staggered, the first pixel small group and the second pixel small group respectivelycomprise three sub-pixel groups with different colors, the three sub-pixel groups with different colors are different in arrangement sequence in the first pixel small group and the second pixel smallgroup, each sub-pixel group comprises at least two sub-pixels with the same color, and the at least two sub-pixels with the same color can share one evaporation opening, so that the sub-pixel groups with the same color are ensured to be regularly arranged in a staggered manner, thereby enhancing the strength of the mask plate, being conducive to manufacturing small-size sub-pixels, and improving the PPI (Pixel Per Inch) of the display device.

The invention discloses a pixel arrangement structure, a display panel and a display device. The pixel arrangement structure comprises a plurality of pixel groups; each pixel group comprises a first color light sub-pixel, and a plurality of second color light sub-pixels and a plurality of third color light sub-pixels, which are alternately arranged around the first color light sub-pixel; and the two adjacent pixel groups share the second color sub-pixels and the third color sub-pixels, which are located between the two adjacent pixel groups. According to the surrounding mode adopted by the scheme, the aperture ratio of the first color light sub-pixel is relatively improved, so that the attenuation of the first color light sub-pixel can be delayed; and according to the scheme, the pluralityof the second color light sub-pixels and the third color light sub-pixels share one first color light sub-pixel, and the second color light sub-pixels and the third color light sub-pixels are sharedby the two adjacent pixel groups, so that the service life of the pixel arrangement structure can be effectively prolonged while the PPI is improved.

The invention discloses a display screen, a pixel circuit unit and a control method thereof. The pixel circuit unit comprises a light emitting device, further comprising: at least two simple pixel compensation circuits connected with the light emitting device to provide driving current for the light emitting device; the pixel compensation circuits are connected with the light emitting device. Theapplication of the invention can improve the PPI of the display screen, in particular the PPI of the display screen of the wearing equipment.

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and can improve the under-screen sensing effect. The display panel has a first area including a first display area and a second display area; the first display area includes a first sub-area and a second sub-area. The display panel comprises a substrate, a plurality of light-emitting devices, a plurality of pixel circuits and a plurality of signal lines, the plurality of light-emitting devices include a first light-emitting device located in the first display area and a second light-emitting device located in the second display area. The plurality of pixel circuits includes a first pixel circuit coupled to the first light emitting device and located outside the first display area and a second pixel circuit coupled to the second light emitting device and located inside the second display area. The plurality of signal lines provide working signals for the plurality of pixel circuits coupled with the signal lines; at least one signal line in the plurality of signal lines is coupled with at least one first pixel circuit; the orthographic projection of at least one signal line on the substrate is overlapped with the second sub-region and is not overlapped with the first sub-region.

The invention discloses a pixel compensation circuit, a driving method thereof and a display device. The pixel compensation circuit includes a first transistor, a driving transistor, a third transistor, a fourth transistor, a fifth transistor, a storage capacitor and a light emitting component; the first end of the first transistor is connected with a first power source; the second end of the first transistor is connected with a first node; the control end of the first transistor is connected with a control signal line; the first end of the driving transistor is connected with the first node;the second end of the driving transistor is connected with a second node; the control end of the driving transistor is connected with a fourth node; the third transistor is connected with the drivingtransistor; the control end of the third transistor is connected with an external first scanning signal line; the first end of the fourth transistor is connected with a fourth node; the second end ofthe fourth transistor is connected with a second power source; the control end of the fourth transistor is connected with an external second scanning signal line; the first end of the fifth transistoris connected with the driving transistor; the second end of the fifth transistor is connected with a data signal line; the control end of the fifth transistor is connected with the first scanning signal line; the first end of the storage capacitor is connected with the first power source; the second end of the storage capacitor is connected with the fourth node; the anode of the light emitting component is connected with the second node; and the cathode of the light emitting component is connected with a third power source.

The present invention discloses a mask plate and a preparation method thereof. The invention aims to decrease the area of a gray region formed by exposure. The mask plate provided by the embodiments of the present invention comprises at least one opening region; the side surface of the opening region is a slope forming a set include angle with the upper surface of the mask plate; and an included angle between a tangent at least located at the first portion of the slope and the upper surface is greater than 90 degrees, so that light which enters through the upper surface of the mask plate and is reflected through the first portion can generate a component parallel to a plane where the mask plate is located.

The invention discloses a stretchable display panel and a preparation method thereof and a display device. The stretchable display panel comprises: a polyimide substrate which comprises a plurality offirst sub-polyimide substrates, a plurality of second sub-polyimide substrates and at least one third sub-polyimide substrate; a first wire which is positioned above the first sub-polyimide substrates and the second sub-polyimide substrates; and a first device which is located above the first sub-polyimide substrates, wherein the first wire is electrically connected with the first device, the adjacent first sub-polyimide substrates are connected through the second sub-polyimide substrates to form a closed area, and the third sub-polyimide substrate is located in the closed area, and the firstsub-polyimide substrates, the second sub-polyimide substrates, the first device and the first wire form a first device group. By means of the stretchable display panel, the laser processing time canbe shortened, the service life of a laser is prolonged, and meanwhile the precision degree of the stretchable display panel can be improved.

The invention discloses a pixel driving circuit, a compensation method thereof and a display panel. The pixel driving circuit comprises a capacitance circuit, a light emitting circuit, a data input circuit and a compensation circuit. The capacitance circuit stores the voltage of the first node, the voltage of the second node and the voltage of the third node; the light-emitting circuit is connected with a first control signal and emits light under the control of the first control signal and the voltage of the first node; the data input circuit accesses a third control signal and a data signal, and transmits the data signal to the first node under the control of the third control signal; and the compensation circuit accesses a second control signal, transmits the voltage of the first node to the fourth node under the control of the second control signal, and performs compensation charging on the second node through the voltage of the fourth node under the control of the voltage of the first node. By providing the simpler pixel driving circuit, the technical problem that the existing pixel driving circuit is relatively complex in structure and occupies a large area during layout design is solved.

The invention provides a pixel driving circuit, a display device and a pixel driving method, and relates to the technical field of display devices. The circuit comprises a first switch sub-circuit, asecond switch sub-circuit, a first inverter, a second inverter and a storage sub-circuit; the control end and the first end of the first switch sub-circuit are respectively configured to be electrically connected with a gate signal line and a data signal line; the first control end of the storage sub-circuit is directly and electrically connected with the second end of the first switch sub-circuit, the second control end of the storage sub-circuit is electrically connected with the second node, and the second switch sub-circuit is connected with the second phase inverter in series. According to the embodiment of the invention, the technical problem of complex operation caused by time sequence optimization in the prior art can be solved, and the delay of pixel charging by the data signal isreduced, so the pixel charging speed of a product is improved. Meanwhile, according to the embodiment of the invention, the wiring space can be saved in layout design of the display device, the reduction of pixel spacing is facilitated, and the PPI of a product is improved.

An AMOLED display device and an array substrate thereof are disclosed. The array substrate of the AMOLED display device includes a baseplate, a surface-shaped power line, a point-shaped power line, and a plurality of insulating layers arranged between the surface-shaped power line and the point-shaped power line. The surface-shaped power line and the point-shaped power line are configured to provide a positive polarity power source to a light-emitting diode. The surface-shaped power line is formed on the baseplate, and the point-shaped power line is formed on the plurality of insulating layers. The surface-shaped power line and the point-shaped power line are electrically connected to each other through a via hole.