46results about How to "Improve brightness unevenness" patented technology

The invention provides a display panel and a display device. The display panel comprises at least one pixel, an auxiliary electrode layer and a first organic material layer. The pixel comprises an organic light-emitting component which is provided with a first electrode layer. The auxiliary electrode layer is arranged adjacent to the pixel, and is provided with a through hole arranged corresponding to the pixel, the through hole is defined by a side wall of the auxiliary electrode layer, and the first electrode layer is electrically connected with the auxiliary electrode layer through the side wall. The first organic material layer is arranged in the through hole. The invention further discloses a display device with the display panel.

The invention provides a pixel cell driving circuit, a pixel cell driving method, a pixel cell and a display device. The pixel cell driving circuit comprises a driving thin film transistor, a matching thin film transistor, a signal clearing thin film transistor, a charge control unit, a driving control unit and a storage capacitor, wherein a grid electrode of the driving thin film transistor is connected with a first end of the storage capacitor and is connected with a driving power source through the charge control unit, a source electrode of the driving thin film transistor is connected with the driving power source, a drain electrode of the driving thin film transistor is connected with an OLED (organic light emitting diode), the matching thin film transistor is connected with a data line through the charge control unit, a source electrode of the matching thin film transistor and the signal clearing thin film transistor are respectively connected with a second end of the storage capacitor, and a source electrode of the signal clearing thin film transistor is connected with a grid electrode and a drain electrode of the matching thin film transistor and is connected with the data line through the charge control unit. By the aid of the pixel cell driving circuit, the pixel cell driving method, the pixel cell and the display device, brightness uniformity of an OLED panel an be improved.

The invention discloses an optical coupler, which comprises a reflection chamber, at least one light source and a light guide plate, wherein the reflection chamber is provided with one mouth, which comprises an upper surface, a low surface, a first side face, a second side face and an end face relative to the mouth, the light source is arranged on the end face, the side face of the light guide plate is conjugated with the mouth, and the light guide plate is thinner than the light source.

The invention provides a display device, a transflective type thin film transistor array substrate and a manufacture method thereof. The manufacture method comprises the steps of providing a substrate; forming a gate line, a data line which is broken at a position passing a gate line area, a gate electrode, a reflecting electrode and a public electrode line on the substrate, wherein the gate line is perpendicular to the data line, the gate line is connected with the gate electrode, an area which the reflecting electrode locates in is a reflecting area, and an area between the reflecting electrode and the public electrode line is a transmission area; forming a patterned gate insulating layer on the gate line, the data line, the gate electrode, the reflecting electrode and the public electrode line, and forming an active layer on the gate insulating layer; forming a pixel electrode, a source electrode, a drain electrode, a broken data line connecting line and a channel on the patterned gate insulating layer and the active layer; forming a passivation layer and a public electrode through hole on the pixel electrode the source electrode and the drain electrode; and forming a public electrode on the passivation layer. The display device, the transflective type thin film transistor array substrate and the manufacture method thereof can resolve the problem of poor display effect under strong light.

The invention provides a method and device for improving luminance uniformity of a passive matrix organic light-emitting diode display screen. The device comprises an image input interface circuit, a communication interface circuit, a main controller, a frame memorizer, a digital adjustable power supply circuit and a PMOLED driver circuit. The image input interface circuit receives image data which need to the displayed and transmits the image data to the main controller. The main controller receives the image data and stores the image data in the frame memorizer, and the luminance correction coefficient of each line is calculated according to the display load of each line. The main controller controls the PMOLED driver circuit to drive the PMOLED display screen to display an image, and the driving power supply voltage output by the digital adjustable power supply circuit when pixels of each line are displayed or the pixel light emitting duty ratio is adjusted according to the luminance correction coefficient of the line. According to the method and the device, the phenomenon that luminance between the lines is not uniform due to the fact that loads of all the lines are different can be effectively eliminated for the PMOLED display screen, and especially the phenomenon that luminance is not uniform when luminance is low can be effectively eliminated.

The present invention provides an array substrate, a driving method thereof, and a display device and belongs to the display technical field. The array substrate is provided with a display area, a grooved area, and a peripheral area which is located around the display area; the array substrate includes a pixel circuit disposed in the display area and a GOA circuit disposed in the peripheral area;the display area includes first regions at two sides of the grooved area and a second region outside the first regions in the display area; the pixel circuit includes a plurality of pixel units; the GOA circuit includes first GOA units that drive the pixel units of the first regions and second GOA units that drive the pixel units of the second region; and the driving capability of the first GOA units is smaller than the driving capability of the second GOA units. The GOA units with different driving capabilities are respectively adopted to drive the different display regions, so that the balance between driving and load can be achieved with no compensation circuits additionally adopted, the problem of uneven brightness is solved, and a narrow frame can be realized.

The embodiment of the invention provides a light-emitting device, and relates to the technical field of display and illumination. The light-emitting device can increase the light-emitting area and achieve uniform and mixed light emergence. The light-emitting device comprises a back plate, a packaging structure, a light-emitting structure and a scattering layer, wherein the light-emitting structure and the scattering layer are arranged between the back plate and the packaging structure, the scattering layer is located at a light emergence side of the light-emitting structure, the light-emitting structure is separated into a plurality of light-emitting units, the scattering layer is separated into a plurality of scattering units, and the multiple light-emitting units correspond to the multiple scattering units one to one. Each light-emitting unit comprises a first light-emitting sub-unit, a second light-emitting sub-unit and a third light-emitting sub-unit and is applied to manufacturing of a display device and an illumination lamp.

The invention relates to the technical field of display, in particular to a display panel brightness compensation control method and a display panel brightness compensation control system. The displaypanel brightness compensation control method comprises the steps of: acquiring brightness data of a display panel, wherein the brightness data of the display panel is obtain through sensing the samegray-scale pure color signal driving pixels of the display panel to emit light; dividing the brightness data of the display panel into a plurality of regional brightness data sets, and dividing the brightness data of the display panel according to a plurality of light-emitting regions of the display panel, wherein the plurality of regional brightness data sets comprise a brightness data set located in a central region of the display panel and a brightness data set located in a non-central region of the display panel; taking the brightness data set of the central region as reference data, and calculating a brightness compensation coefficient of the pixels of the non-central region; and adjusting a compensation voltage of the pixels in the non-central region through using the brightness compensation coefficient, so that the display panel emits light uniformly. According to the display panel brightness compensation control method, the data storage space can be saved, the operation rate isincreased, and the uniformity of the brightness of the display panel is improved.

The invention discloses a pixel structure, a liquid crystal display panel and a liquid crystal display device for eliminating the phenomenon of non-uniform brightness of display pictures and improving the display quality. The pixel structure comprises a group of gate lines, a group of data lines and a plurality of sub-pixels arranged in a dot matrix manner, wherein a different sub-pixel is connected with a different combination of gate line and data line, the two adjacent rows of sub-pixels are staggered, and the two adjacent columns of sub-pixels are staggered; each row of sub-pixels includes first sub-pixels, second sub-pixels and third sub-pixels having different colors and arranged cyclically, and any first sub-pixel is located on the center line of the adjacent second sub-pixel and third sub-pixel of the adjacent row; the colors of each row of sub-pixels are the same, and the adjacent sub-pixels are respectively connected with different data lines.

The invention relates to an LCD panel scanning-signal distortion compensating method and circuit. The LCD panel scanning-signal distortion compensating circuit comprises a time-sequence controller used for compensating the scanning-signal distortion of one LCD panel. The LCD panel comprises a plurality of scanning lines and a plurality of data cables which are interlaced into an array; a plurality of display units which are respectively arranged beside interlaced points of a plurality of scanning lines and a plurality of data cables; a data drive which is coupled with a plurality of data cables; a scanning drive which is coupled with a plurality of scanning lines. The time-sequence controller comprises a comparator used for comparing the difference between a first frame pixel image data and a second frame pixel image data; a counter used for providing the position of the second frame pixel image data; an inquiry list used for compensating images according to the result of the comparator so as to lead the whole brightness of the LCD panel to be uniform.

The invention discloses a liquid crystal display panel which comprises a scanning line, a data line, a switch unit, a liquid crystal molecule and a pixel area, wherein the scanning line and the data line are electrically connected to the switch unit. The liquid crystal display panel is characterized in that the liquid crystal display panel comprises a pixel electrode and a conductive electrode layer; the pixel electrode is arranged in the pixel area and electrically connected with the switch unit; the conductive electrode layer is arranged below the periphery of the pixel electrode; the conductive electrode layer and the pixel electrode are separated by an insulating layer, and the conductive electrode layer is used for providing voltage when a preset inclination angle of the liquid crystal molecule is formed. The liquid crystal display panel disclosed by the invention can improve the situations of occurence of a dark ray or uneven brightness of the display panel.

A method for driving liquid crystal display includes outputting the first pixel voltage to the first pixel in the first pixel column for varying transmissivity of the first pixel, doing the same thing as above on the second pixel to very transmissivity of the second pixel, switching on backlight module and regulating pixel electrode voltage of the first pixel to make transmissivity of the first pixel be decreased at the first preset time then regulating pixel electrode voltage of the second pixel to make transmissivity of the second pixel be decreased at the second preset time.

The invention discloses a lamp panel assembly and a display device. The lamp panel assembly comprises a plurality of mutually-spliced lamp panels, and a connecting part is formed between any two adjacent lamp panels; and each connecting part comprises a convex part and a concave part, wherein the convex part and the concave part are arranged on the two corresponding adjacent lamp panels correspondingly and mutually embedded. By arranging the convex parts and the concave parts which can be stably connected on the spliced positions of the lamp panels, the splicing stability of the lamp panels isimproved, gaps in the spliced positions of the lamp panels are reduced, and the phenomenon of the uneven brightness of the lamp panels is improved.

The invention discloses a spliced wall brightness uniformity control system comprising light inductors and a circuit control system. The light inductors are correspondingly arranged in all the detection areas of all the display screen backlight boards. The light inductors are used for detecting the actual light perception value of the corresponding detection areas in real time. The light inductors are connected with the circuit control system. The circuit control system is used for acquiring a reference value used for comparing the change of the actual light perception value and acquiring the actual light perception value from the light inductors and comparing the reference value and the actual light perception value. When the absolute value of the difference value of the actual light perception value of a certain detection area and the reference value exceeds the threshold, the circuit control system is used for controlling the driving conditions of the LED lamps on the backlight boards so that the brightness of the detection area is maintained to be uniform to that of other detection areas. The invention also discloses a control method of the spliced wall brightness uniformity control system.

The invention discloses a display panel and a display device. The display panel comprises a first substrate, a second substrate, a colorful light resistance layer, a liquid crystal layer, a pluralityof interval units, a display area and a peripheral area, wherein the first substrate is provided with a plurality of concave parts; the second substrate comprises a first metal layer; one end of the interval unit in the display area is arranged on the first substrate, and the other end of the interval unit is arranged on the first metal layer; a second metal layer is arranged on the portion, in the peripheral area, of the second substrate; the second metal layer is arranged on the first metal layer, one ends of the interval units of the peripheral area are arranged corresponding to the concaveparts, and the other ends of the interval units of the peripheral area are arranged on the second metal layer; the depth of the concave parts is smaller than twice of the thickness of the second metal layer. A liquid crystal box thickness uniformity of the display panel can be effectively improved, so that the phenomenon that the brightness of the display panel is uneven is effectively alleviated, the display effect of the display panel is better, and the display quality of the display panel is further improved.

The invention discloses a display substrate and a preparation method, a display panel and a display device. The display substrate includes a substrate provided with a plurality of first film transistors, a plurality of gate lines and a plurality of data lines. Each data line includes at least two data line segments. Second film transistors are arranged between the adjacent data line segment. A first electrode of each second film transistor is connected with one data line segment of one data line while a second electrode of each second film transistor is connected with the other data line segment of said data line, so that data signals are transmitted downward to the next stage under the control of the second film transistors. Therefore, capacitive coupling between the data lines and the pixel electrodes are avoided, vertical crosstalk is eliminated completely and non-uniformity of luminance of a head end and a tail end is improved.

The invention discloses a display panel, a display device and a making photomask thereof. The display panel comprises a first substrate, a second substrate, a liquid crystal layer, multiple grooves and spacers; the second substrate is arranged to be opposite to the first substrate; the liquid crystal layer is formed between the first substrate and the second substrate; the grooves are formed in the first substrate and concaved into the surface of the first substrate; the spacers are formed on the first substrate and arranged between the first substrate and the second substrate; the spacers comprise the main spacer and the auxiliary spacers, the main spacer is higher than the auxiliary spacers, and the auxiliary spacers are located in the grooves. In this way, the auxiliary spacers are fixed into the grooves, segment gaps between the auxiliary spacers and the main spacer can be increased, liquid crystal redundancy of a liquid crystal box is increased, and the phenomenon that due to temperature change, the liquid crystal box is prone to nonuniform gravity displayer brightness can be improved.

The invention provides a display device. The display device is provided with a transition display area and a display light-transmitting area, wherein the transition display area is located on the periphery of the display light-transmitting area. The display device comprises: display pixels arranged in the transition display area and the display light-transmitting area; a plurality of pixel driving circuits, which are arranged in the transition display area and are used for driving the display pixels in the transition display area and the display light-transmitting area to emit light; and metal reflection patterns, which are arranged in the transition display area and located in gaps among the pixel driving circuits, wherein first preset metal patterns are arranged in areas corresponding to the plurality of pixel driving circuits, and the metal reflection patterns are the same as or similar to the first preset metal patterns. The metal reflection patterns at the gaps among the pixel driving circuits are the same as or similar to the first preset metal patterns in the areas corresponding to the pixel driving circuits, so the reflectivity of the transition display area tends to be uniform, and the problem that the display device is uneven in display brightness under a dark condition is solved.

The invention discloses a compensation method and a compensation device of a display panel. The compensation method of the display panel comprises the following steps: acquiring a current display picture of the display panel; updating the compensation data of the display panel according to the current display picture and the target pixel value; and compensating the display panel according to the updated compensation data. The compensation data of the display panel is updated according to the current display picture and the target pixel value, so the updated compensation data can compensate theproblem of non-uniform light-emitting brightness caused by the aging phenomenon in the use process of the display panel, and the display panel can be compensated when the aging phenomenon occurs in the use process of the display panel; the problem of non-uniform brightness generated in the using process of the display panel is effectively solved, the replacement rate in the using process of the display panel is reduced, the cost generated when the display panel is replaced in the using process is reduced, the using cost of the display panel is reduced, the utilization rate of the display panel is increased, and the user experience is improved.

The invention discloses a micro light emitting diode display device. The micro light emitting diode display device comprises a display panel and a driving circuit, the display panel comprises a plurality of pixel group units arranged side by side in a first direction, and each pixel group unit is provided with a plurality of pixels in an extending mode in a second direction. The driving circuit outputs a first voltage and a second voltage and transmits the first voltage and the second voltage to the pixels of each pixel group unit of the display panel; the display panel is provided with a first side edge and a second side edge which are opposite to each other in the second direction, the first voltage is led into the display panel from the first side edge, the second voltage is led into the display panel from the second side edge, and the voltage difference between the first voltage and the second voltage is positively related to the brightness of one connected pixel.

A display with double-surface consists of back light module, the first display face plate, the second display face plate and multiple reflective polarized plate being all positioned between the first light outgoing surface on light guide plate in back light module and the first display face plate or positioned between the second light outgoing surface on light guide plate and the second display face plate.

The invention provides a method and device for improving luminance uniformity of a passive matrix organic light-emitting diode display screen. The device comprises an image input interface circuit, a communication interface circuit, a main controller, a frame memorizer, a digital adjustable power supply circuit and a PMOLED driver circuit. The image input interface circuit receives image data which need to the displayed and transmits the image data to the main controller. The main controller receives the image data and stores the image data in the frame memorizer, and the luminance correction coefficient of each line is calculated according to the display load of each line. The main controller controls the PMOLED driver circuit to drive the PMOLED display screen to display an image, and the driving power supply voltage output by the digital adjustable power supply circuit when pixels of each line are displayed or the pixel light emitting duty ratio is adjusted according to the luminance correction coefficient of the line. According to the method and the device, the phenomenon that luminance between the lines is not uniform due to the fact that loads of all the lines are different can be effectively eliminated for the PMOLED display screen, and especially the phenomenon that luminance is not uniform when luminance is low can be effectively eliminated.

The invention discloses a white light organic light emitting diode. It includes a silicon carbide substrate, an aluminum nitride buffer layer, a cathode layer, an organic layer, an anode layer, a dielectric layer and a glass panel stacked in sequence. The refractive index of the anode layer is greater than that of the glass panel, and the refractive index of the dielectric layer is greater than that of the organic The refractive index of the layer, the organic layer includes an isolation layer distributed in a matrix on the cathode layer and a light-emitting layer arranged between a plurality of isolation layers, the surface of the light-emitting layer is concaved downward to form a curved surface, and the light-emitting layer is composed of a plurality of gallium nitride layers It is formed by interlacing and stacking multiple gallium nitride layers, at least one gallium nitride layer in the multiple gallium nitride layers is inserted with a stress buffer layer, and the lattice constant of the stress buffer layer is larger than that of the gallium nitride layer and the gallium nitride layer. Lattice constant of the aluminum layer. The present invention can improve the brightness unevenness of outgoing light.

The present invention provides a display device, a transflective thin film transistor array substrate and a manufacturing method thereof, the manufacturing method comprises: providing a substrate; forming a gate line, a data line which is broken when passing through a gate line area, a gate electrode, a reflective electrode and a common electrode line; forming a patterned gate insulating layer and an active layer located above the gate insulating layer; forming a pixel electrode, a source electrode, a drain electrode, a connection line of the data line and a channel; forming a passivation layer and a common electrode via hole; forming a common electrode. The present invention can avoid the problem of poor display effect under strong light.

The invention provides a pixel unit driving circuit and method, a pixel unit and a display device. The pixel unit driving circuit includes a driving thin film transistor, a matching thin film transistor, a signal clearing thin film transistor, a charging control unit, a driving control unit and a storage capacitor, the driving thin film transistor, the gate is connected to the first end of the storage capacitor and is connected to the driver through the charging control unit. Power connection, the source is connected to the driving power supply, the drain is connected to the OLED; the matching thin film transistor is connected to the data line through the charging control unit, the source is connected to the second end of the storage capacitor; the signal clearing thin film transistor is connected to the second end of the storage capacitor connection; the source of the signal clearing thin film transistor is connected with the gate and drain of the matching thin film transistor, and connected with the data line through the charging control unit. The invention can improve the brightness uniformity of the OLED panel.

The embodiment of the invention provides a special display panel and a display device and relates to the technical field of display. By adoption of the special display panel and the display device, the loading difference among lines for transmitting grid scanning signals is reduced and the display effect is improved. The display area of the special display panel comprises a main display area and aspecial display area, and the special display area is shorter than the main display area; a non-display area comprises a first non-display area and a second non-display area; the panel comprises a grid line and a data line arranged in the display area, a data signal transmission line arranged in the second non-display area and connected with the data line, a first grid signal transmission line arranged in the first non-display area and connected with the grid line of the main display area, and a second grid signal transmission line arranged in the second non-display area and is connected witha grid line in the special display area; the second grid signal transmission line and the data signal transmission line are arranged in a crossing and insulating manner, and the part, overlapping with the data signal transmission line, of the second grid signal transmission line is wider than the first grid signal transmission line. The special display panel is used for realizing image display.