Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

40results about How to "Improve screen display quality" patented technology

Pixel driving circuit, driving method and display device

The invention relates to a pixel driving circuit, a driving method and a display device. The driving circuit comprises a pixel array, data lines and scanning lines. The pixel array comprises multiple pixel units, and each of the pixel units comprises four sub pixels in different colors. The sub pixels are arranged in a way that the polarity of one sub pixel is opposite to the polarity of an adjacent sub pixel. The data lines and the scanning lines are orthogonally configured in the pixel array. Two scanning lines are arranged on each line of the pixel units and two data lines are arranged on each row of the pixel units. When each data line passes through one line of the pixel unit, two nearest sub pixels with the same polarity are connected, the polarities of all the sub pixels which are connected on the same data line in the row direction are the same and the polarities of adjacent sub pixels connected with the corresponding data line are opposite. By use of the pixel driving circuit, polarity switching is not required in one frame of a source electrode voltage signal, so power consumption of the whole panel and the temperature of a source integrated circuit are reduced.
Owner:HKC CORP LTD +1

Pixel circuit and displayer

The invention discloses a pixel circuit and a displayer. According to the pixel circuit, the size of the pixel circuit is reduced, so that the distance between every two pixels is reduced, the number of the pixels contained in unit area is increased, and the display quality of an image is improved. The pixel circuit comprises a first pixel sub circuit, a second pixel sub circuit, an initializing module and a data voltage write-in module, wherein the initializing module and the data voltage write-in module are connected with the first pixel sub circuit and the second pixel sub circuit. The initializing module is connected with a reset signal end and a low potential end and used for initializing the first pixel sub circuit and the second pixel sub circuit under the control of a reset signal input by the reset signal end. The data voltage write-in module is connected with data voltage and a gate signal end and used for writing first data voltage in the first pixel sub circuit and the second pixel sub circuit under the control of a signal input by the gate signal end, compensating a driving module of the second pixel sub circuit, writing second data voltage in the first pixel sub circuit and compensating a driving module of the first pixel sub circuit.
Owner:BOE TECH GRP CO LTD +1

Flexible display device and manufacturing method thereof

The invention discloses a flexible display device and a manufacturing method thereof and relates to the field of display. The manufacturing method is simple and can realize flexible display. In addition, the high-quality display picture can be obtained without a threshold voltage compensation circuit and an external driving integrated circuit. The method comprises the following steps: bonding a monocrystalline silicon diaphragm on a substrate, forming a driving circuit and an electroluminescence device on the substrate bonded with the monocrystalline silicon diaphragm, and packaging on the electroluminescence device with a transparent flexible cover plate, wherein the monocrystalline silicon diaphragm forms an active layer of a thin film transistor in the driving circuit; the thin film transistor comprises a first thin film transistor arranged in the display area of the flexible display device; the monocrystalline silicon outside the thin film transistor is removed from the monocrystalline silicon diaphragm; and the monocrystalline silicon diaphragm is sealed with the flexible diaphragm. The invention further provides a flexible display device manufactured by the method. Compared with the existing device, the flexible display device has the advantages of uniform brightness, simple structure and higher resolution.
Owner:BOE TECH GRP CO LTD +1

TFT array substrate structure and manufacturing method thereof

The invention provides a TFT array substrate structure and a manufacturing method thereof. The TFT array substrate structure is provided with a plurality of transverse common electrode wires (17) and a plurality of longitudinal common electrode wires (43), the transverse common electrode wires (17) correspond to each row of common electrodes (15) and are used for being connected with the common electrodes (15) in rows, the longitudinal common electrode wires (43) correspond to each line of common electrodes (15) and are used for being connected with the common electrodes (15) in lines, and the transverse common electrode wires (17) and the longitudinal common electrode wires (43) are interwoven to be in a net shape. Common voltages can be distributed more evenly in a liquid crystal display panel, and the image display quality of the liquid crystal display panel can be improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Blue light compensation system and method for display

The invention discloses a blue light compensation system for a display, and the system is used for blue light compensation of a display panel of an organic light-emitting diode display. The system comprises a gamma module; a timing module which is electrically connected with the gamma module and is used for calculating the total work time of the gamma module; and a register which is electrically connected with the gamma module and is used for registering a gamma numerical table of blue sub-pixels of the display panel, wherein the compensation design of the gamma numerical table is carried out according to the aging characteristics of a blue sub-pixel material of the display panel. The gamma module extracts the corresponding gamma value from the register according to the total work time, and calculates the drive voltage of the blue sub-pixels of the display panel according to the corresponding gamma value. The display employing the system is better in display quality. The invention also discloses a blue light compensation method for the display.
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD

Image sticking eliminating method and liquid crystal display

The invention relates to an image sticking eliminating method and a liquid crystal display. The image sticking eliminating method comprises the steps that public electrode voltage corresponding to each setting gray scale is obtained in advance; the current to-be-displayed gray scales are determined, and the corresponding public electrode voltage is output to the liquid crystal display according to the to-be-displayed gray scales, wherein the public electrode voltage corresponding to each setting gray scale is not identical. The image sticking eliminating method and the liquid crystal display can avoid the occurrence of the image sticking phenomenon effectively and improve the image display quality.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Liquid crystal display device and method for driving the same

A liquid crystal display (LCD) device having a first substrate and a second substrate with liquid crystal sealed therebetween, includes a plurality of gate lines and data lines crossing each other on the first substrate; a gate driving section for driving the gate lines; a source driving section for precharging the data lines for a first time and supplying video signals to the data lines; and a precharge circuit section for precharging the data lines for a second time.
Owner:LG DISPLAY CO LTD

Gate driving circuit of display

The invention discloses a gate driving circuit of a display, which is characterized in that at least one transistor is connected between a transistor providing a high potential node and a reference voltage signal input end in series, and a preset high potential is provided between the transistor that is connected to the node and an input end of the at least one transistor. For example, the drive voltage of a gate line corresponding to the gate is fed into the input end, and the preset high potential provided can reduce the potential difference between the source and the drain of the transistor, so that current leakage of the transistor can be reduced, and the stability of the drive voltage of the gate electrode driving circuit is further improved so as to improve the reliability of the gate electrode driving circuit.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Management system for unifying LED light color and method thereof

In a management system and a method for unifying LED light color, light colors are projected from a plurality of display units, and each display unit has at least one LED having a color coordinate and a brightness value. The system and method read the color coordinate and the brightness value and compare the color coordinate and the brightness value with a predetermined color coordinate and a predetermined brightness value respectively to produce a coordinate variation value of each LED to correct a duty ratio of a PWM signal of the display unit, so as to adjust a driving current of each LED and move the color coordinate to a position corresponding to the predetermined color coordinate. Therefore, each LED can show the same primary colors through a software calibration without having any chromatic aberration of mixed lights, so as to improve the display effect.
Owner:GENERAL LUMINAIRES SHANGHAI LTD

Liquid crystal display device and method for driving the same

A liquid crystal display (LCD) device having a first substrate and a second substrate with liquid crystal sealed therebetween, includes a plurality of gate lines and data lines crossing each other on the first substrate; a gate driving section for driving the gate lines; a source driving section for precharging the data lines for a first time and supplying video signals to the data lines; and a precharge circuit section for precharging the data lines for a second time.
Owner:LG DISPLAY CO LTD

Film transistor structure and AMOLED driving circuit

The invention discloses a film transistor structure. The structure comprises a glass substrate, a buffer layer, a metal oxide semiconductor layer, a gate insulating layer, a gate metal layer, an interlayer insulating layer, a source metal layer, a drain metal layer and a protection layer. A shading metal layer is arranged between the glass substrate and the buffer layer. A projection area of the gate metal layer in a plane where the glass substrate is located aligns at a projection area of the shading metal layer in the plane where the glass substrate is located. A projection area of the shading metal layer in the plane where the glass substrate is located covers a projection area of the metal oxide semiconductor layer of a channel area in the plane where the glass substrate is located. The invention also provides an AMOLED driving circuit. In the invention, through designing the shading metal layer, work stability of devices of the film transistor and the like in the AMOLED driving circuit is increased and frame display quality of a corresponding AMOLED display apparatus is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

ADS array substrate, manufacturing method thereof, and display device comprising same

The invention relate to the technical field of liquid crystal display, and discloses an ADS array substrate, a manufacturing method thereof and a display device comprising the same. The ADS array substrate comprises a pixel electrode and a common electrode. A metal line is arranged between at least two adjacent sub pixel areas, and the metal line is connected with the common electrode in parallel, so that the resistance of the common electrode is reduced, the coupling capacitance of the common electrode can be reduced, the problems of level drifting and signal distortion of the common electrode are solved, and the phenomenon of picture yellow discolouration is greatly reduced. The display device comprises the ADS array substrate. The display quality of the pictures is improved.
Owner:BOE TECH GRP CO LTD +1

Thin film transistor structure and fabrication method thereof

InactiveCN107623042ASolve technical problems with poor job stabilityImprove job stabilityTransistorSolid-state devicesInsulation layerDisplay device
The invention discloses a thin film transistor structure. The thin film transistor structure comprises a glass substrate, a buffer layer, a metal oxide semiconductor layer, a grid insulation layer, agrid metal layer, an interlayer insulation layer, a source metal layer, a drain metal layer and a protection layer, wherein a shielding metal layer is further arranged between the glass substrate andthe buffer layer, a metal oxide semiconductor layer contact hole penetrating through the grid insulation layer and the buffer layer is further formed in the grid insulation layer, and the grid metal layer is connected with the shielding metal layer via the metal oxide semiconductor layer contact hole. The invention also provides a fabrication method of the thin film transistor structure. By designof the shielding metal layer, the working stability of a device such as a thin film transistor in an active matrix / organic light emitting diode (AMOLED) driving circuit is improved, so that the imagedisplay quality of a corresponding AMOLED display device is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Touch display substrate and manufacturing method thereof and touch display device

The invention provides a touch display substrate and a manufacturing method thereof and a touch display device, and belongs to the field of touch display. The touch display substrate comprises a plurality of grid lines and a plurality of data lines, the grid lines and the data lines are arranged on an underlayer substrate in a staggered mode, the touch display substrate further comprises a plurality of touch electrodes and a plurality of touch signal lines, the touch electrodes are used for loading public electrode signals and touch scanning signals in a time sharing mode, each touch electrode is electrically connected with at least one touch signal line, and the touch signal lines are parallel to the grid lines. According to the technical scheme, the display effect of the touch display device can be improved, and the picture display quality of the touch display device can be improved.
Owner:BOE TECH GRP CO LTD +1

Pixel circuit and displayer

The invention discloses a pixel circuit and a displayer. According to the pixel circuit, the size of the pixel circuit is reduced, so that the distance between every pixels is reduced, the number of the pixels contained in unit area is increased, and the display quality of an image is improved. The pixel circuit comprises a first pixel sub circuit, a second pixel sub circuit, an initializing module and a data voltage write-in module, wherein the initializing module and the data voltage write-in module are connected with the first pixel sub circuit and the second pixel sub circuit. The initializing module is connected with a reset signal end and a low potential end and used for initializing the first pixel sub circuit and the second pixel sub circuit under the control of a reset signal input by the reset signal end. The data voltage write-in module is connected with data voltage and a gate signal end and used for writing first data voltage in the first pixel sub circuit under the control of a signal input by the gate signal end, compensating a driving module of the first pixel sub circuit, writing second data voltage in the second pixel sub circuit and compensating a driving module of the second pixel sub circuit.
Owner:BOE TECH GRP CO LTD +1

Array substrate, display panel and display device

The invention relates to the technical field of display and discloses an array substrate, a display panel and a display device. A liquid crystal panel comprises an array substrate and a color-film substrate which are combined oppositely, and further comprises cushion arranged between the array substrate and the color-film substrate, and the array substrate comprises a thin-film transistor arranged on a substrate base plate. By setting projection of the thin-film transistor on the substrate base plate completely on the projection of the cushion on the substrate base plate, the cushion can protect the thin-film transistor from being irradiated by light rays reflected by the color-film substrate, performance of the thin-film transistor is improved and display quality of images of the display device is also improved.
Owner:BOE TECH GRP CO LTD +1

Color Filter on Array Substrate and Method for Manufacturing the same, as well as Display Device

The color filter on array substrate comprises a gate line, a data line, a common electrode layer and a black matrix, wherein: the black matrix is positioned between the gate line and the common electrode layer and / or the data line and the common electrode layer; and the material of the black matrix is a metal material. The present disclosure is applied in the technology of manufacturing display means.
Owner:BOE TECH GRP CO LTD

Backlight module, display panel comprising same and electronic device

The invention provides a backlight module, a display panel comprising the same and an electronic device. The backlight module comprises a light guide plate, a first low-refractive coating, a diffusion coating, a high-refractive coating, a second low-refractive coating, a Bragg reflective coating and light sources, wherein the light guide plate is provided with a light-exiting surface and a light-entering surface which are opposite to each other, the first low-refractive coating is arranged on the light-exiting surface of the light guide plate, the diffusion coating is arranged on the upper surface of the first low-refractive coating, the high-refractive coating is arranged on the upper surface of the diffusion coating, the second low-refractive coating is arranged on the light-entering surface of the light guide plate, the Bragg reflective coating is arranged on the lower surface of the second low-refractive coating, and the light sources are arranged on side faces of the light guide plate. According to the membrane-free backlight module with a plurality of coatings, the structure of the backlight module is greatly simplified, yield is improved, light loss is reduced, brightness is greatly improved, the thickness of the whole backlight module is only equal to that of the upper and lower coatings of the light guide plate, the backlight module can be ultra-thin, and pictures and quality of the display panel comprising the backlight module are improved.
Owner:BOE TECH GRP CO LTD +1

Shift register unit and control method thereof, gate drive circuit and display device

ActiveCN111369948ARealize the shift output functionAvoid the problem of splash screenStatic indicating devicesDigital storageShift registerDriver circuit
The invention provides a shift register unit and a control method thereof, a gate drive circuit and a display device. According to the invention, the shift output function of the shift register unit is realized; the high-level output of the shift register unit does not change along with the change of the signal; the stable output of the high level of the shift register is ensured; the phenomenon of transistor electric leakage increase caused by process fluctuation and / or screen body temperature rise is eliminated; the problem of abnormal transistor output caused by increase of transistor electric leakage is solved; according to the shift register, the output stability of the shift register is improved, the problem of splash screen of the display device due to abnormal output of the transistor is avoided, the image display quality of the display device is improved, the actual requirement of a high-quality visual effect is met, and better visual experience is provided for a user.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Liquid crystal display panel and liquid crystal display device

The invention discloses a liquid crystal display panel comprising a first substrate, a second substrate and a liquid crystal layer arranged between the first substrate and the second substrate. An auxiliary electrode is arranged on the first substrate. A common electrode and a plurality of sub pixels arranged in an array are arranged on the second substrate; and a pixel electrode is arranged in each sub pixel. The liquid crystal layer employs positive liquid crystal molecules; and the initial state of the positive liquid crystal molecule is a state being perpendicular to the first substrate and the second substrate. Each pixel electrode has a < type or > type structure; a value range of an angle theta between an electrode bar of each pixel electrode and a horizontal direction is from 30 degrees to 83 degrees. The common electrode is used for applying a direct-current common voltage; the auxiliary electrode is used for applying an auxiliary reference voltage; and the potential of the auxiliary reference voltage is not equal to that of the direct-current common voltage and a voltage difference between the auxiliary electrode and the common electrode is larger than a preset value. Inaddition, the invention also discloses a liquid crystal display device including the liquid crystal display panel.
Owner:KUSN INFOVISION OPTOELECTRONICS

Screen display monitoring method and device, electronic equipment and storage medium

The invention relates to a screen display monitoring method and device, electronic equipment and a storage medium. The screen display monitoring method comprises the steps that of when a first event is detected, generating a recording instruction of a screen is generated; in response to the a recording instruction, creating a screen recording virtual device and a layer transmission interface for the a screen; triggering a screen recording virtual device to collect display layer data of a the screen, sending the display layer data to a multimedia module through a layer transmission interface, and rendering and combining the display layer data into image video data by the multimedia module; analyzing the image video data, and determining whether the image display of the screen has a displaydefect or not; and when the screen has the display defect, obtaining a state parameter of a processing unit supporting screen display, and sending the display defect information and the state parameter to a specified port. According to the invention, the defect occurrence reason can be determined based on the reported information, the corresponding solution is generated in a targeted manner, and the display quality of the electronic equipment is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Liquid crystal display device and common voltage compensation method thereof

The embodiment of the invention discloses a liquid crystal display device and a common voltage compensation method thereof, and belongs to the technical field of display. The common voltage compensation method comprises the steps that m transverse lines and n vertical lines are simulated in the display area of a liquid crystal display panel; common voltage of the m transverse lines is simulated, and gate and source electrode parasitic capacitance of the corresponding m transverse lines is obtained according to the simulated common voltage of the corresponding m transverse lines; the compensation capacitance value of the corresponding m transverse lines is obtained according to the calculated gate and source electrode parasitic capacitance of the corresponding m transverse lines; the common voltage of the corresponding m transverse lines is calculated again; and whether the difference value between the common voltage of the adjacent transverse lines is less than a standard value is judged, and the gate and source electrode parasitic capacitance of the liquid crystal display device is compensated according to the compensation capacitance value of the corresponding m transverse lines if the judgment result is yes so that the common voltage along the direction of the m transverse lines is enabled to be uniform in distribution. The common voltage along the direction of the m transverse lines is enabled to be uniform in distribution so that frame display quality is enhanced.
Owner:KUSN INFOVISION OPTOELECTRONICS

Liquid crystal display device and color optical filter thereof

The invention discloses a liquid crystal display device and a color optical filter thereof. The color optical filter comprises a plurality of filter units and black matrix layers. The filter units are distributed into an array at intervals. Each filter unit corresponds to one subpixel unit of the liquid crystal display device. The black matrix layers are formed between the filter units. The cross section of the black matrix layer between every two adjacent filter units comprises a wide upper portion and a narrow lower portion.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Pixel arrangement structure, display panel and display device

ActiveCN111370455APrevent display temperature and display device temperature from risingImprove screen display qualitySolid-state devicesNon-linear opticsImage resolutionEngineering
The invention discloses a pixel arrangement structure, a display panel and a display device. The pixel arrangement structure comprises at least one repeated pixel group, wherein the repeated pixel group comprises a first pixel unit, a second pixel unit arranged in the same row as the first pixel unit, a third pixel unit arranged in the same column as the first pixel unit, and a fourth pixel unit arranged in the same column as the second pixel unit and arranged in the same row as the third pixel unit; the two sub-pixels contained in the first pixel unit are adjacent to the two sub-pixels contained in the second pixel unit, and the adjacent sub-pixels are different from each other; the two sub-pixels included in the third pixel unit are adjacent to the two sub-pixels included in the fourth pixel unit, and the adjacent sub-pixels are different from each other, so that pixel multiplexing can be realized. According to the invention, low-resolution and high-resolution display can be compatible at the same time, the temperature of the display screen and the temperature of the display device are prevented from rising, and the image display quality is improved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

A display substrate, manufacturing method thereof, and display device

The invention discloses a display substrate, a manufacturing method thereof, and a display device, and relates to the field of display technology, and aims to solve the problem that the picture display quality of the display device is lowered due to uneven cell thickness of the display substrate. The display substrate includes a first substrate and a second substrate oppositely arranged, the first substrate includes a first area and a second area, and the total thickness of the functional layers located in the first area on the first substrate is greater than that located in the second area. The total thickness of the functional layer is thin; a thickness compensation layer is provided between the first substrate and the second substrate, the thickness compensation layer corresponds to the first area, and the total thickness of the thickness compensation layer and the functional layer in the first area is the same as that of the second area The total thickness of the inner functional layer is equal. In the present invention, a thickness compensation layer corresponding to the first region is arranged between the first substrate and the second substrate, so that the cell thickness of each region of the display substrate is uniform, so as to improve the image display quality of the display device.
Owner:BOE TECH GRP CO LTD +1

Method for improving liquid crystal display image sticking and liquid crystal display driving device

The embodiment of the invention relates to a method for improving liquid crystal display image sticking and a liquid crystal display driving device. The method for improving the liquid crystal display image sticking comprises the following steps: judging whether a first image in refresh display on a liquid crystal display within a preset time changes or not; and if not, controlling a second imageto be in refresh display on the liquid crystal display after the preset time so as to improve the image sticking caused by the long-term refresh display of the first image. As for the method and the device provided by the embodiment of the invention, the residual direct current voltage of the first image after long-term display can be reduced by inserting to display the second image opposite to the first image after the first image is displayed for a long term, thus improving the image sticking in liquid crystal display and enhancing the image display quality of the liquid crystal display.
Owner:BOE TECH GRP CO LTD +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products