公开(公告)号：US20150102988A1

公开(公告)日：2015-04-16

申请号：US14510471

申请日：2014-10-09

Applicant: Japan Display Inc.

Inventor： Daiichi SUZUKI ,  Yukio TANAKA ,  Kenji NAKAO ,  Kazuhiro NISHIYAMA ,  Shinichi KOMURA ,  Shinichiro OKA ,  Mika OIWA

IPC: G02F1/133 ,  G02F1/1368 ,  G09G3/36 ,  G02F1/1337

CPC classification number: G09G3/3648 ,  G02F1/1337 ,  G02F1/134363 ,  G02F1/1368 ,  G02F2001/134372 ,  G09G3/3614 ,  G09G2300/0426 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435

Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10−15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 Ω·cm, the second range being 5×1013 to 5×1014 Ω·cm, and a relationship of “R1×C1≈R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.

Abstract translation: 根据一个实施例，液晶显示装置的横向电场型包括显示面板和控制器，其中帧频落在1Hz至10Hz的范围内，每个TFT的截止漏电流具有 1×10 -15 A或更小的值，液晶的电阻率和取向膜的电阻率均落在第一范围和第二范围之内，第一范围为1×1013至5×1013＆OHgr ;·cm，第二范围为5×1013〜5×1014＆OHgr·cm，并且满足“R1×C1≈R2×C2”的关系，其中R1是电阻，C1是相对于每个 像素，R2是电阻，C2是相对于每个像素的容量。

公开(公告)号：US20150062100A1

公开(公告)日：2015-03-05

申请号：US14476999

申请日：2014-09-04

Applicant: Japan Display Inc.

Inventor： Yukio TANAKA ,  Daiichi SUZUKI ,  Kazuhiro NISHIYAMA

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2096 ,  G09G3/3648 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2340/0435

Abstract: When normal driving is switched to intermittent driving simultaneously with switching from a video image to a still image, a flicker may occur due to a response delay caused by dielectric anisotropy of liquid crystal. A display device has a first mode (video image driving) in which driving is performed at a first frame frequency and a second mode (still image driving) in which the driving is performed at a second frame frequency lower than the first frame frequency. When the first mode is switched to the second mode, the display device first performs the driving at a frame frequency higher than the second frame frequency for at least one frame and then, the driving is switched to be performed at the second frame frequency.

Abstract translation: 当从视频图像切换到静止图像同时切换到间歇驱动时，由于液晶的介电各向异性引起的响应延迟，可能会发生闪烁。 显示装置具有第一模式（视频图像驱动），其中以低于第一帧频率的第二帧频进行驱动的第一帧频进行驱动和第二模式（静止图像驱动）。 当第一模式切换到第二模式时，显示装置首先以高于第二帧频的帧频执行至少一帧的驱动，然后切换以第二帧频执行。

公开(公告)号：US20190088222A1

公开(公告)日：2019-03-21

申请号：US16191661

申请日：2018-11-15

Applicant: Japan Display Inc.

Inventor： Masahiro KOSUGE ,  Yukio TANAKA

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1368 ,  G09G3/34

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, a pixel electrode, and a common electrode. The liquid crystal layer is disposed between the first substrate and the second substrate. The first alignment film is provided on the first substrate to be in contact with the liquid crystal layer. The pixel electrode is provided on the first substrate and covered with the first alignment film. The common electrode provided on the first substrate to form a lateral electric field. The liquid crystal layer is driven at a frequency of 40 Hz or less. A time constant of the liquid crystal layer is larger than a time constant of the first alignment film.

公开(公告)号：US20170131592A1

公开(公告)日：2017-05-11

申请号：US15413795

申请日：2017-01-24

Applicant: Japan Display Inc.

Inventor： Toshiki KANEKO ,  Takashi NAKAMURA ,  Masahiro TADA ,  Yukio TANAKA ,  Hiroyuki KIMURA ,  Osamu ITOU

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1343

CPC classification number: G02F1/133345 ,  G02F1/134336 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/1362 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133397 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G02F2202/42 ,  G09G3/3648 ,  G09G2300/0465 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/023

Abstract: There is provided a high-definition liquid crystal display device that can prevent flicker due to a reduction in the pixel potential in a low-frequency drive of about 10 Hz to reduce power consumption. The pixel has a TFT formed of Poly-Si as a switching element. In the pixel, a capacitance insulating film is formed on a planar first electrode on which a comb-shaped second electrode is fanned. When the film thickness of the insulating film is d and the dielectric constant at 10 Hz frequency is ε, it is given that εd≧5×10−6 m at 10 Hz frequency. The capacitance insulating film does not have a hysteresis characteristic. The refractive index of the capacitance insulating film with respect to a light of a wavelength of 632.8 nm is 1.7 to 2.0.

公开(公告)号：US20140362129A1

公开(公告)日：2014-12-11

申请号：US14291614

申请日：2014-05-30

Applicant: Japan Display Inc.

Inventor： Yukio TANAKA ,  Daiichi SUZUKI ,  Kenji NAKAO

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/3614 ,  G09G3/3677 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/0646 ,  G09G2360/14 ,  G09G2360/16

Abstract: According to one embodiment, a liquid crystal display apparatus includes a display panel on which a plurality of liquid crystal pixels are arrayed in a matrix, a lighting module arranged to be opposed to the display panel and configured to illuminate the display panel, and a control module configured to control image display on the display panel and luminance of a light source of the lighting module, the control module rewriting an image signal to the liquid crystal pixels by intermittent driving and controlling the luminance of the light source to be proportional to a reciprocal of transmittance of the display panel.

Abstract translation: 根据一个实施例，液晶显示装置包括：多个液晶像素排列在矩阵中的显示面板;布置成与显示面板相对并配置为照亮显示面板的照明模块;以及控制 模块，被配置为控制显示面板上的图像显示和照明模块的光源的亮度，控制模块通过间歇驱动将图像信号重新写入液晶像素，并将光源的亮度与倒数成正比 的显示面板的透射率。

公开(公告)号：US20250022419A1

公开(公告)日：2025-01-16

申请号：US18768362

申请日：2024-07-10

Applicant: Japan Display Inc.

Inventor： Yukio TANAKA ,  Tetsuo MORITA ,  Kenji HARADA

IPC: G09G3/3233 ,  H10K59/12 ,  H10K59/121

Abstract: A display device includes a substrate including a display region; and a first pixel arranged in a first region on an outer edge of the display region, and a second pixel arranged in a second region surrounded by the first region. Each of the first pixel and the second pixel includes a first transistor, a second transistor, a first capacitor, a third transistor, and a seventh transistor. A capacitance of a capacitor connected to the gate electrode of the second transistor of the first pixel is different from a capacitance of a capacitor connected to the gate electrode of the second transistor of the second pixel.

公开(公告)号：US20170229058A1

公开(公告)日：2017-08-10

申请号：US15496308

申请日：2017-04-25

Applicant: Japan Display Inc.

Inventor： Kenji NAKAO ,  Yukio TANAKA ,  Daiichi SUZUKI

IPC: G09G3/20 ,  G09G3/3225 ,  G09G3/36 ,  G02F1/1368 ,  G02F1/1362

CPC classification number: G09G3/2092 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134372 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2300/08 ,  G09G2300/0819 ,  G09G2320/0214 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A high-precision display device is capable of suppressing a leak current and operating at a low power consumption. The display device comprises a source power supply for providing a pixel electric potential to each pixel placed on a substrate through a first thin-film transistor; a gate power supply for controlling conductive and nonconductive states of the first thin-film transistor; and a second thin-film transistor disposed between the first thin-film transistor and the gate power supply, the second thin-film transistor being controllable independently of the first thin-film transistor.

公开(公告)号：US20160210922A1

公开(公告)日：2016-07-21

申请号：US14991289

申请日：2016-01-08

Applicant: Japan Display Inc.

Inventor： Daiichi SUZUKI ,  Yukio TANAKA ,  Hirofumi WAKEMOTO

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2310/067 ,  G09G2320/0247

Abstract: According to one embodiment, a display device includes a display panel including a gate line, source lines, and switching elements connected to the gate line and the respective source lines. A gate driver selects the gate line. A source driver supplies an image signal to the source lines. The image signals can be supplied to pixel electrodes through the switching elements. A frame period includes a first scan period in which the gate line is selected, a first hold period subsequent to the first scan period, a second scan period in which the gate line is selected subsequent to the first hold period, and a second hold period subsequent to the second scan period. The first hold period is longer than the second hold period.

Abstract translation: 根据一个实施例，显示装置包括显示面板，其包括栅极线，源极线和连接到栅极线和各个源极线的开关元件。 栅极驱动器选择栅极线。 源驱动器向源极线提供图像信号。 图像信号可以通过开关元件提供给像素电极。 帧周期包括其中选择栅极线的第一扫描周期，第一扫描周期之后的第一保持周期，在第一保持周期之后选择栅极线的第二扫描周期和第二保持周期 在第二扫描周期之后。 第一个保留期比第二个保留期长。

公开(公告)号：US20150356936A1

公开(公告)日：2015-12-10

申请号：US14828103

申请日：2015-08-17

Applicant: Japan Display Inc.

Inventor： Yukio TANAKA ,  Daiichi SUZUKI ,  Kenji NAKAO

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/36 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0823 ,  G09G2310/0202 ,  G09G2310/0243 ,  G09G2310/0254 ,  G09G2310/0256

Abstract: According to one embodiment, a display device includes an array substrate including pixel electrodes arranged in a matrix, gate lines and auxiliary capacitance lines extending a first direction, signal lines extending a second direction, and a driving circuit configured to drive the gate lines, the signal lines, and the auxiliary capacitance lines, a counter substrate arranged opposite the array substrate, a liquid crystal layer held between the substrates, and a controller configured to control the driving circuit in such a manner that a polarity of a signal supplied to each of the signal lines varies in units of horizontal periods during a frame period when the polarity control signal for the first scan is identical to the polarity control signal for the second scan.

Abstract translation: 根据一个实施例，显示装置包括阵列基板，其包括排列成矩阵的像素电极，沿第一方向延伸的栅极线和辅助电容线，延伸第二方向的信号线和被配置为驱动栅极线的驱动电路， 信号线和辅助电容线，与阵列基板相对配置的对置基板，保持在基板之间的液晶层，以及控制器，被配置为以提供给每个的基板的信号的极性来控制驱动电路 当第一扫描的极性控制信号与用于第二次扫描的极性控制信号相同时，在帧周期期间，信号线以水平周期为单位变化。

公开(公告)号：US20160363796A1

公开(公告)日：2016-12-15

申请号：US15172829

申请日：2016-06-03

Applicant: Japan Display Inc.

Inventor： Yukio TANAKA ,  Daiichi SUZUKI ,  Takashi NAKAMURA ,  Masahiro TADA ,  Youichi ASAKAWA

IPC: G02F1/1368 ,  G02F1/1362 ,  G02F1/1343 ,  H01L27/12

CPC classification number: G02F1/1368 ,  G02F1/136209 ,  H01L27/1222 ,  H01L27/124 ,  H01L29/41733 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/7869 ,  H01L29/78696

Abstract: A liquid crystal display device according to an aspect of the invention includes a display region having a plurality of sub pixels. The sub pixels each include a pixel electrode and a thin film transistor electrically coupled to the pixel electrode. A transient leak current of each thin film transistor included in the sub pixels at both ends of the display region among the sub pixels provided on a line passing through the center of the display region in plan view is smaller than a transient leak current of each thin film transistor included in the sub pixels in a central portion including the center.

Abstract translation: 根据本发明的一个方面的液晶显示装置包括具有多个子像素的显示区域。 子像素各自包括电子耦合到像素电极的像素电极和薄膜晶体管。 包括在设置在通过平面图的显示区域的中心的线上的子像素中的显示区域的两端的子像素中的每个薄膜晶体管的瞬态泄漏电流小于每个薄的晶体管的瞬态泄漏电流 包括在包括中心的中心部分中的子像素中的薄膜晶体管。