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Patent Searching and Data


Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/155575
Kind Code:
A1
Abstract:
A display device (1) comprises: a plurality of pixels (3); a voltage source (13); a source driving unit (12); and a control unit (2). The voltage source supplies a common voltage (Vcom) to the plurality of pixels. The source driving unit outputs, to each pixel and for every frame, a source signal having a positive polarity and exhibiting a higher voltage than the common voltage, or a source signal having a negative polarity and exhibiting a lower voltage than the common voltage. The control unit controls the display of the image of each frame on the basis of a video signal having a variable frame period length. The control unit detects the lengths of frame periods where the images of the frames are displayed with a positive polarity, and the lengths of frame periods where the images of the frames are displayed with a negative polarity (S1). The control unit corrects the common voltage in accordance with deviations in the lengths of the frame periods detected in each polarity (S5).

Inventors:
MIKAMI HIROSHI (JP)
Application Number:
PCT/JP2018/004419
Publication Date:
August 15, 2019
Filing Date:
February 08, 2018
Export Citation:
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Assignee:
SAKAI DISPLAY PRODUCTS CORP (JP)
International Classes:
G09G3/36; G09G3/20
Foreign References:
JP2010072393A2010-04-02
JP2014164017A2014-09-08
JP2011197384A2011-10-06
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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