39results about How to "High PPI" patented technology

The invention discloses a pixel structure and an organic light emitting displayer using the same. The pixel structure comprises a plurality of pixels, wherein each pixel is composed of a plurality of sub-pixels, and one or more pixels constitute a pixel unit. Through the reasonable pixel distribution structure, the sub-pixels of every two adjacent pixels share an opening of a Mask for evaporation, the area of the opening of the Mask can be increased during evaporation, the technology manufacturing difficulty of the Mask is lowered, and the evaporation technology difficulty is also lowered. No gap needs to be reserved while evaporation is performed on the sub-pixels of every two adjacent pixels of the Mask, the requirement for the aperture ratio is met, and meanwhile the real high PPI can be achieved. In addition, strength of the Mask can be enhanced through the pixel structure, so that the Mask is not prone to deformation in a use process, the product yield is increased, service life of the Mask is prolonged, and cost is reduced.

The invention discloses a pixel structure of an OLED display screen. The pixel structure comprises pixel units which are arranged on the OLED display screen and arrayed according to a preset law, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel, the second sub-pixel and the third sub-pixel are in an octagon shape, each octagon is provided with four sets of opposite sides in parallel, and the lengths of the adjacent sides of any two adjacent sub-pixels are equal, and the straight lines where the adjacent sides of any two adjacent sub-pixels are consistent in direction. According to the pixel structure of the OLED display screen, the area of blue sub-pixels in all the pixel units of an OLED can be increased, the ppi of a displayer can be improved, correspondingly, service life of the blue sub-pixels is prolonged, and the display quality of the OLED display screen is improved.

Provided are a pixel structure and an organic light-emitting display using same. The pixel structure comprises multiple pixels, each pixel comprises multiple sub-pixels, at least one pixel forms a pixel unit, pixel units that are longitudinally adjacent are arranged in a vertical mirror manner, and / or pixel units that are horizontally adjacent are arranged in a horizontal mirror manner. Through a reasoned structure of pixel arrangement and by deposition of sub-pixels of adjacent pixels through a shared mask aperture, the area of mask apertures can be increased during deposition, the difficulty of manufacture with the mask technique is reduced and the difficulty of the deposition process is also reduced. No gap needs to be reserved when the sub-pixels of the adjacent pixels of the mask are deposited, and genuinely high PPI can be achieved while maintaining a high aperture ratio. In addition, mask strength is increased, thus preventing deformation during use, improving product yield, increasing service life and reducing costs.

A pixel of a display device includes: a first and second organic light emitting diodes; a driving transistor which generates a driving current based on a data voltage; and a luminance control transistor which controls an electric connection between the first and second organic light emitting diodes based on a first or second sub-data signal supplied through a sub-data line connected thereto, where when the data voltage is a first data voltage corresponding to a first grayscale, the first and second organic light emitting diodes emit light by the driving current based on the first data voltage in response to the first sub-data signal, and when the data voltage is a second data voltage corresponding to a second grayscale, the first organic light emitting diode emits light by the driving current based on the second data voltage in response to the second sub-data signal.

The invention provides a display backplane and a manufacturing method thereof, a display panel and a display device. The display backplane comprises a substrate, a first shading layer, a first thin film transistor, a first film layer and a third electrode. The first shading layer is arranged on one side of the substrate. The first thin film transistor is arranged on one side of the first shading layer away from the substrate, and includes a first active layer, a first source, a first drain and a first top gate electrode. The first film layer includes a first semiconductor part and a first conductor part, and the first semiconductor part constitutes the first active layer. The third electrode is arranged in the same layer as the first drain. The first shading layer and the first conductor part constitute a first capacitor. The third electrode and the first conductor part constitute a second capacitor. The shading layer of the display backplane not only can protect the light stability ofthe TFT structure from influence, but also can constitute a laminated pixel capacitor together with the first conductor part and the third electrode. The laminated capacitor structure can achieve high opening rate and high PPI while increasing the pixel capacitance value and improving the driving performance.

The invention discloses a display panel and a display device. The display panel comprises a substrate, wherein the display panel further comprises a display structure located on the substrate, the display structure comprises a plurality of sub-pixel units, and each sub-pixel unit comprises at least two self-luminous subunits for generating polarized light on different polarization directions separately. In the embodiment of the invention, as each sub-pixel unit adopts at least two self-luminous subunits for generating polarized light on different polarization directions separately, during 3D display, each sub-pixel simultaneously generates polarized light on at least two directions, and display with high PPI and high brightness is realized.

An organic light-emitting display panel, driving method thereof, and an organic light-emitting display device are provided. The organic light-emitting display panel comprises a plurality of pixel driving circuits including a first, a second and a third pixel driving circuits along a row direction. The first and the second pixel driving circuits share a same reference voltage signal line. The second and the third pixel driving circuits share a same data voltage signal line. A plurality of reference voltage signal lines is connected to the plurality of pixel driving circuits. A plurality of data voltage signal lines is connected to the plurality of pixel driving circuits. A first control signal line is connected to the first and third pixel driving circuits. A second control signal line is connected to the second pixel driving circuit. A light-emitting control signal line is connected to the first, second, and third pixel driving circuits.

An array substrate and an OLED display device are provided. A trace system of the array substrate is designed in a structure with three layers of metal. By providing one layer of inorganic insulation film and one layer of organic insulation film between two layers of metal, a coupling effect between two layers of trace can be reduced. By exposing all or part of an organic insulation film in a region, which will form a second electrode plate of a storage capacitor, a storage capacitor with larger capacitance can be formed. By forming a third metal layer as a mesh structure, it is possible to reduce IR drop without increasing mask and improve display uniformity of the display device.

The invention relates to an AMOLED display manufacturing method and AMOLED display. Technically, the method comprises the following steps: preparing a phase change material layer and a light emitting layer on one side of a first substrate in sequence, followed by the covering and the laser processing of a mask pattern at the other side of the first substrate to obtain part A; preparing a film transistor, an anode and a hole layer on a second substrate in sequence to obtain part B; bonding the light emitting layer of part A and the hole layer of part B; and removing the first substrate and the phase change material layer, preparing in sequence an electron layer and a cathode at the position of the original phase change material layer, and then packaging for an AMOLED display. Through the use of a phase change material layer in the manufacturing process, it is possible to reduce the pixel pitch in the light emitting layer without changing other materials and steps to obtain an AMOLED display with a high PPI.

The invention describes a display panel and a display device. The display panel comprises a pixel group. The pixel group comprises a first sub-pixel pair and a second sub-pixel pair. The first sub-pixel pair and the second sub-pixel pair respectively comprise two sub-pixels of the same color, and the two sub-pixels of the same color are adjacent and arranged along a first direction. At least one third sub-pixel is located at the central position between the first sub-pixel pair and the second sub-pixel pair. The pixel group comprises a first pixel group and a second pixel group. The first pixel group and the second pixel group are axially symmetrical, and the axis of symmetry extends along the first direction. The first pixel group is arranged in a first pixel column along the first direction, the second pixel group is arranged in a second pixel column along the first direction, and the first pixel column and the second pixel column are alternately arranged along a second direction. The adjacent sub-pixels of the same color are assembled together as much as possible so that smaller pixel size and high PPI can be realized. Besides, the sub-pixels of the same color form a straight line so as to be beneficial to manufacturing of the sub-pixels and improve the process efficiency.

The invention provides a pixel driving circuit. The pixel driving circuit is characterized in that each input module is connected with a data line, a corresponding scanning line and a corresponding first node, and the data line and the first node are connected under the control of the scanning line; a control end of a driving module is connected with a corresponding first node, a first end and a second end are connected with a corresponding second node and a first end of a corresponding light emitting module, and the second node and the first end of the light emitting module are conducted under the control of the first node; a first reset module is connected with a first power line, a first control line and all second nodes, so that the first power line and the second nodes are conducted independently under the control of the first control line; a control module is connected with all first nodes, all third nodes and a third control line, so that the third nodes and the corresponding first nodes are conducted independently under the control of the third control line; a second reset module is connected with a third power line, a second control line and all the third nodes, so that the third power line and the third nodes are conducted under the control of the second control line; a first end and a second end of a memory module are connected with the corresponding second node and the corresponding third node respectively, so that charge and discharge are performed under the control of the second node and the third node, and voltage difference of the second node and the third node is kept when the third node is in suspension joint.

The present invention belongs to the field of semiconductor technology, and specifically provides a photo mask and an exposure system. The photo mask is provided with a patterning structure for forming a resulting pattern, the patterning structure comprising a strip-like main body for forming a rectilinear pattern, wherein the patterning structure further comprises a patterning structure auxiliary unit provided at two sides of the strip-like main body, the patterning structure auxiliary unit being capable of adjusting and compensating direction and intensity of light during exposure. With the photo mask, the resulting pattern formed through exposure using the photo mask has improved fineness, thereby improving accuracy of the formed rectilinear pattern.

The invention provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit comprises a pull-down node control circuit; the pull-down node control circuit is electrically connected with an input end, a reset end, a first voltage end, a second voltage end and a pull-down nodeand is used for controlling the pull-down node to be communicated with the first voltage end or the second voltage end under the control of an input signal provided by the input end and a reset signal provided by the reset end, and controlling and maintaining the potential of the pull-down node. According to the shift register unit, the number of adopted transistors is reduced, and the reliability is high.

The present disclosure provides an array substrate, including a substrate, a first functional layer configured on one side of the substrate, a first insulating layer configured on the first functional layer facing away from the substrate, a second functional layer configured on the first insulating layer facing away from the substrate, a second insulating layer configured on the second functional layer facing away from the substrate, a third functional layer configured on the second insulating layer facing away from the substrate, a third insulating layer configured on the third functional layer facing away from the substrate, a fourth functional layer configured on the third insulating layer facing away from the substrate, and a plurality of through-holes configured to electrically connect different functional layers, wherein the depth of any through-holes does not exceed the thickness of two adjacent insulating layers.

The embodiment of the invention discloses a pixel circuit, a driving method thereof and a display panel. The pixel circuit comprises a driving module, a data writing module, an auxiliary module, a compensation module, a storage module, a coupling module and a light emitting module, the data writing module is used for writing data voltage into the control end of the driving module through the auxiliary module; the compensation module is connected between the first end and the control end of the driving module and is used for compensating the threshold voltage of the driving module; the coupling module is connected with the compensation module and is used for adjusting the voltage of the control end of the driving module through the compensation module according to the received jump voltage; the storage module is connected with the control end of the driving module, and the driving module is used for providing driving signals for the light-emitting module according to the voltage of the control end and driving the light-emitting module to emit light. According to the pixel circuit provided by the embodiment of the invention, the compensation effect can be improved, and meanwhile, the number of via holes is reduced, so that the layout area of pixels is reduced, and high PPI can be realized.

The invention relates to a nano quantum dot light-emitting diode based on self-assembled submicron spheres and a method. The nano quantum dot light-emitting diode comprises a substrate, an anode layer, an insulating layer pixel Bank array, a hole injection layer, a hole transport layer, a quantum dot light-emitting layer, an electron transport layer and a cathode layer which are sequentially arranged from bottom to top. According to the nano quantum dot light-emitting diode based on the self-assembled submicron spheres, the problem that an existing quantum dot light emitting diode is not small enough and not dense enough is solved.

An array substrate and an OLED display device are provided. A trace system of the array substrate is designed in a structure with three layers of metal. By providing one layer of inorganic insulation film and one layer of organic insulation film between two layers of metal, a coupling effect between two layers of trace can be reduced. By exposing all or part of an organic insulation film in a region, which will form a second electrode plate of a storage capacitor, a storage capacitor with larger capacitance can be formed. By forming a third metal layer as a mesh structure, it is possible to reduce IR drop without increasing mask and improve display uniformity of the display device.

The present invention relates to a display panel and a display device. The display panel includes a pixel group, the pixel group includes a plurality of first pixels and a plurality of second pixels, each first pixel includes a plurality of first sub-pixels, and each second pixel Including a plurality of second sub-pixels; the pixel circuit group includes a first pixel circuit and a second pixel circuit, the first pixel circuit is used to control the first sub-pixel, the second pixel circuit is used to control the second sub-pixel, the first pixel The circuit includes more than two first components, the second pixel circuit includes at least one second component, and the number of first components included in each first pixel circuit is greater than the number of second components included in the second pixel circuit number, so that the light transmittance of the area where the second sub-pixel is located is greater than the light transmittance of the area where the first sub-pixel is located. The embodiment of the present invention can meet the requirement of light transmittance, and also has a higher PPI to ensure the display effect.

The invention discloses a pixel structure and an organic light-emitting display adopting the pixel structure. Wherein, the pixel structure includes a plurality of pixels, each pixel is composed of a plurality of sub-pixels, and at least one pixel constitutes a pixel unit. The present invention can increase the opening area of ​​the Mask during evaporation, reduce the difficulty of making the Mask process, and also reduce the evaporation process by using a reasonable pixel arrangement structure and sharing an opening on the Mask with the sub-pixels of adjacent pixels for evaporation. difficulty. There is no need to reserve a gap when evaporating the sub-pixels of the adjacent pixels of the Mask, and a real high PPI can be achieved while maintaining the requirements of the aperture ratio. In addition, the present invention can also increase the strength of the Mask, making it difficult to deform during use, improving product yield, extending the life of the Mask, and reducing costs.