知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.023 seconds)

    Display device
    13.
    发明授权
    Display device 有权

    公开(公告)号：US11195465B2

    公开(公告)日：2021-12-07

    申请号：US16737363

    申请日：2020-01-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12

    Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

    Driving controller, display device and driving method including a lower frequency mode and an image transition mode
    15.
    发明授权
    Driving controller, display device and driving method including a lower frequency mode and an image transition mode 有权

    公开(公告)号：US10997926B2

    公开(公告)日：2021-05-04

    申请号：US16726464

    申请日：2019-12-24

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Geunjeong Park ,  Eunho Lee

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

    Light emitting assembly and display device
    16.
    发明授权
    Light emitting assembly and display device 有权

    公开(公告)号：US10658605B2

    公开(公告)日：2020-05-19

    申请号：US15895722

    申请日：2018-02-13

    Applicant: Samsung Display Co., LTD.

    Inventor： Seung-Jun Lee ,  Geunjeong Park ,  Hui Nam ,  Myungho Lee

    IPC: H01L51/50 ,  H01L27/32 ,  H01L27/15 ,  H01L33/08 ,  C09K11/08 ,  G09G3/3233 ,  H01L25/075 ,  B82Y40/00 ,  B82Y20/00 ,  G09G3/3291 ,  H01L33/32 ,  H01L33/20

    Abstract: A quantum-nano light emitting diode (Q-NED) pixel includes a switching transistor configured to transfer a data voltage in response to a scan signal, a storage capacitor configured to store the data voltage transferred by the switching transistor, a driving transistor coupled to a first power supply voltage line, and configured to generate a driving current based on the data voltage stored in the storage capacitor, a plurality of Q-NEDs configured to emit light based on the driving current, the Q-NEDs having an ohmic contact resistance at anodes and cathodes of the Q-NEDs, a first sensing transistor configured to couple the Q-NEDs to a sensing line in response to a sensing signal when a sensing operation for sensing the ohmic contact resistance of the Q-NEDs is performed, and a second sensing transistor configured to decouple the Q-NEDs from a second power supply line in response to an inverted sensing signal.

    DISPLAY DEVICE
    17.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200219450A1

    公开(公告)日：2020-07-09

    申请号：US16737363

    申请日：2020-01-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

    Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

    Light emitting display device
    18.
    发明授权
    Light emitting display device 有权

    公开(公告)号：US10311786B2

    公开(公告)日：2019-06-04

    申请号：US15707083

    申请日：2017-09-18

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Wonsik Oh ,  Myungho Lee ,  Geunjeong Park ,  Myoungseop Song

    IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3225

    Abstract: A light emitting display device including: a display panel; a plurality of pixels included in the display panel, each of the plurality of pixels including a driving switching element connected to a first power line and a light emitting element connected to a second power line; a maximum voltage detection unit for detecting a voltage from each of the light emitting elements of each of the pixels and outputting a maximum voltage that has a highest voltage level among the detected voltages; and a power supply unit for correcting a first driving voltage based on the maximum voltage and applying the corrected first driving voltage to the first power line.

    Timing controller, display device including same and method of driving display device
    19.
    发明授权
    Timing controller, display device including same and method of driving display device 有权

    公开(公告)号：US10147363B2

    公开(公告)日：2018-12-04

    申请号：US15163620

    申请日：2016-05-24

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Hongsoo Kim ,  Geunjeong Park ,  Yunki Baek ,  Donggyu Lee ,  Jakyoung Jin

    IPC: G09G3/34 ,  G09G3/36

    Abstract: A timing controller includes: a temperature sensor to sense an ambient-3.6 temperature; a memory to store a liquid crystal response time corresponding to the temperature, and a gamma signal corresponding to the ambient temperature; a field number determinator to identify the liquid crystal response time corresponding to the ambient temperature from the memory, and to determine a number of fields corresponding to the liquid crystal response time; and a gamma converter to identify the gamma signal corresponding to the ambient temperature and the number of fields from the memory, and to convert an image signal into an image data signal corresponding to the gamma signal.

Patent Agency Ranking