公开(公告)号：US20180188605A1

公开(公告)日：2018-07-05

申请号：US15563362

申请日：2017-03-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yifang CHU ,  Chulgyu JUNG

IPC: G02F1/1335 ,  H05B33/08

CPC classification number: G02F1/133603 ,  G09G3/3426 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2360/16 ,  H05B33/0845

Abstract: The present invention discloses a backlight adjustment method and system, a backlight module and a display device. The backlight adjustment method includes: calculating a first outgoing light brightness of an backlight block corresponding to each image block; dividing a backlight source into a number of closed areas according to the first outgoing light brightnesses of the backlight blocks; calculating the number of backlight blocks included in each of the light-emitting closed areas; looking up a corresponding drive current in a preset correspondence table, wherein predetermined correspondence between the number of backlight blocks and the drive current applied to light up the corresponding number of backlight blocks and make an actual brightness of the corresponding area equal to a preset brightness is recorded in the correspondence table; and outputting the drive current obtained by the lookup operation to the backlight blocks in the light-emitting closed area.

公开(公告)号：US20180234056A1

公开(公告)日：2018-08-16

申请号：US15572307

申请日：2017-04-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Gaoming SUN ,  Chulgyu JUNG ,  Shou LI

IPC: H03F1/14 ,  H03F1/02 ,  H03F3/45

CPC classification number: H03F1/14 ,  H03F1/02 ,  H03F1/0205 ,  H03F1/26 ,  H03F3/3022 ,  H03F3/45192 ,  H03F3/45636 ,  H03F2203/45051 ,  H03F2203/45644

Abstract: A two-stage operational amplifier is provided to comprise a bias voltage generator, a first stage operational amplifier and a second stage operational amplifier, wherein the first stage operational amplifier comprises a folded cascode amplifier circuit and a cross coupling load, the cross coupling load is coupled to a load differential pair in the folded cascode amplifier circuit, the cross coupling load comprises two transistors, the two transistors in the cross coupling load and two transistors in the load differential pair constitute two current mirror structures, which are cross coupled. In the solution, the cross coupling load is added to the load differential pair in the folded cascode amplifier circuit, to increase gain of the two-stage operational amplifier by using positive feedback and negative conductance gain enhancement technology; while parameters of MOSFETs in the folded cascode amplifier circuit are properly set to reduce noise of the two-stage operational amplifier.

公开(公告)号：US20170205652A1

公开(公告)日：2017-07-20

申请号：US15216629

申请日：2016-07-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengqi ZHOU ,  Hong WANG ,  Yifang CHU ,  Chulgyu JUNG ,  Shou LI

IPC: G02F1/133 ,  H05B37/02

Abstract: This disclosure relates to a liquid crystal display and a display device. A plurality of photosensitive detectors is arranged in the frame region of the liquid crystal display panel. Light intensity distribution in the display region is estimated by a light intensity estimation module based on the light intensity detected by each photosensitive detector. Light intensity in a position corresponding to each light emitting pixel of the backlight source is determined based on the light intensity distribution in the display region estimated by the light intensity estimation module. Depending on the determined light intensity in a position corresponding to each light emitting pixel of the backlight source, luminance of the light emitting pixel in this corresponding position is controlled by a backlight driving circuit.

公开(公告)号：US20160247425A1

公开(公告)日：2016-08-25

申请号：US14382892

申请日：2013-12-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chulgyu JUNG

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/003 ,  G02B27/22 ,  G02B27/2264 ,  G09G3/2007 ,  G09G2320/0686 ,  H04N13/341 ,  H04N13/344 ,  H04N13/398

Abstract: A method for driving a three-dimensional (3D) display device according to this disclosure may include: determining a first 3D image to be displayed currently; and displaying a first partial image of the first 3D image during a first period, and displaying a second partial image of the first 3D image during a second period, so as to display the first 3D image completely. And there is a difference between display brightness of the first partial image and display brightness of the second partial image.

Abstract translation: 根据本公开的用于驱动三维（3D）显示设备的方法可以包括：确定当前要显示的第一3D图像; 以及在第一时段期间显示所述第一3D图像的第一部分图像，以及在第二时段期间显示所述第一3D图像的第二部分图像，以便完全显示所述第一3D图像。 并且第一部分图像的显示亮度和第二部分图像的显示亮度之间存在差异。

公开(公告)号：US20180348421A1

公开(公告)日：2018-12-06

申请号：US15527857

申请日：2016-01-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ki Man KIM ,  Chulgyu JUNG

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02F1/1335

Abstract: A liquid crystal display device, including a liquid crystal panel and a backlight module located on a light incident side of the liquid crystal panel; the liquid crystal panel including a plurality of subpixels distributed in array, and the backlight module includes a light guide plate and a light source, wherein the light source which is a monochromatic light source, and a grating is provided on the light guide plate, a ratio of a period of the grating to a peak wavelength of light emitted by the light source is greater than or equal to and less than or equal to 1, so that an angle of incidence of a light incident to the liquid crystal panel is restricted in a set range; and the liquid crystal display device further includes a light conversion module provided on a light emitted side of the liquid crystal panel configured to convert the color of a light.

公开(公告)号：US20180218690A1

公开(公告)日：2018-08-02

申请号：US15547042

申请日：2017-01-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengqi ZHOU ,  Yifang CHU ,  Chengte LAI ,  Shou LI ,  Chulgyu JUNG

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2330/021 ,  G09G2360/16

Abstract: The present disclosure provides a method for controlling a display device, a control apparatus for a display device, and a display device comprising the control apparatus. The method for controlling a display device may comprise the steps of: determining whether or not to perform peak driving for respective backlight sub-regions of the display device, the backlight sub-regions corresponding to sub-display areas of the display device; and performing, in response to a result of the above determining step, data signal compensation at least for sub-display areas whose average luminance values are lower than a preset first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond.

公开(公告)号：US20190064422A1

公开(公告)日：2019-02-28

申请号：US15554636

申请日：2017-02-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kiman KIM ,  Chulgyu JUNG

IPC: F21V8/00

Abstract: A backlight module and a display device are provided. The backlight module includes a light guide plate and a prism film arranged at a light-exiting side of the light guide plate. The display device includes the above backlight module and a lower polarizer arranged on the prism film.

公开(公告)号：US20180190217A1

公开(公告)日：2018-07-05

申请号：US15692511

申请日：2017-08-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chulgyu JUNG

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1333 ,  H01L27/12

CPC classification number: G09G3/3611 ,  G02F1/133377 ,  G02F1/133514 ,  G02F1/136277 ,  G02F1/136286 ,  G02F2201/52 ,  G09G3/3413 ,  G09G3/3607 ,  G09G3/364 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2310/0224 ,  G09G2310/0235 ,  H01L27/1218

Abstract: An array substrate includes a base substrate, rows of gate lines on the base substrate, columns of data lines on the base substrate, and an array of sub-pixels defined by the gate lines and the data lines. The sub-pixels include first monochrome sub-pixels, second monochrome sub-pixels, third monochrome sub-pixels and white sub-pixels. Monochromatic lights from the first monochrome sub-pixels, the second monochrome sub-pixels and the third monochrome sub-pixels are capable of being mixed into white light. The gate lines are divided into a first kind of gate lines and a second kind of gate lines depending on whether an ordinal number of each of the rows of gate lines is an odd number or an even number. The monochrome sub-pixels are driven by the first kind of gate lines, and the white sub-pixels are driven by the second kind of gate lines.

公开(公告)号：US20180090094A1

公开(公告)日：2018-03-29

申请号：US15705833

申请日：2017-09-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chulgyu JUNG

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0251 ,  G09G2310/08 ,  G09G2320/0223

Abstract: This disclosure provides a display substrate and a driving method thereof, and a display apparatus. The driving method of a display substrate comprising a plurality of data lines and a plurality of gate lines, the data lines and the gate lines define a plurality of pixel units, each of the pixel units comprises a switch transistor and a pixel electrode connected with the switch transistor, wherein the driving method comprises steps of: inputting gate signals to a gate lines so as to turn on switch transistors of the pixel units controlled by the gate lines; inputting data signals to the data lines, so that the data lines output the data signals to the pixel electrodes through the switch transistors, wherein a charging time of one pixel electrode is larger than that of a pixel electrode closer to the signal input terminal of the data line than the one pixel electrode.

公开(公告)号：US20160056203A1

公开(公告)日：2016-02-25

申请号：US14518163

申请日：2014-10-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Heecheol KIM ,  Chulgyu JUNG ,  Hyunsic CHOI

IPC: H01L27/15

CPC classification number: G02F1/133514 ,  G02F2201/52

Abstract: A pixel array and a display device are provided. The pixel array includes a two-dimensional array that is formed by arranging a plurality of color sub-pixels and a plurality of white sub-pixels in the row direction and in the column direction, the color sub-pixels include color sub-pixels in three different colors. For color sub-pixels in each color in each row, color sub-pixels with the same color in the same row are arranged so that, the odd-numbered column sub-pixel and the even-numbered column sub-pixel alternate one by one, or they are disposed by way of groups each including two odd-numbered column sub-pixels alternating with even-numbered column sub-pixels or by way of groups each including two even-numbered column sub-pixels alternating with odd-numbered column sub-pixels.

Abstract translation: 提供像素阵列和显示装置。 像素阵列包括通过在行方向和列方向上布置多个彩色子像素和多个白色子像素而形成的二维阵列，彩色子像素包括彩色子像素 三种不同的颜色。 对于每行中的每种颜色的彩色子像素，排列在相同行中具有相同颜色的彩色子像素，使得奇数列子像素和偶数列子像素逐个交替 或者它们通过每个包括与偶数列子像素交替的两个奇数列子像素的组或通过与奇数列子像素交替的两个偶数列子像素的组的组来布置 -像素。