公开(公告)号：US20210264858A1

公开(公告)日：2021-08-26

申请号：US17255104

申请日：2020-05-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tangxiang WANG ,  Yi CHEN ,  Zhan GAO

IPC: G09G3/3258 ,  G09G3/3241

Abstract: Disclosed are a pixel compensation circuit, a display apparatus, and a pixel compensation circuit driving method. The pixel compensation circuit comprises: an integration circuit, a comparison circuit, a timing circuit, and a processor, wherein the integration circuit is configured to integrate driving currents of a pixel circuit, and then output a first voltage; the comparison circuit is configured to receive the first voltage, compare the first voltage with a first reference voltage, and then output a first logic control signal; the timing circuit is configured to acquire a first working duration; and the processor is configured to acquire the first working duration, obtain, according to correlations between the pre-obtained working duration and the pixel driving currents, a target driving current, corresponding to the first working duration, of the pixel circuit, and obtain a compensation parameter according to the target driving current.

公开(公告)号：US20200251068A1

公开(公告)日：2020-08-06

申请号：US16696862

申请日：2019-11-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi CHEN

IPC: G09G5/00 ,  G09G3/3258 ,  G09G3/3275

Abstract: A display panel and a driving device for the same are disclosed. The driving device includes a timing controller and a source driver IC. The timing controller includes a first interface, a first transmitter and a first receiver which are connected with the first interface, and a first data selector which is configured to control the first transmitter and the first receiver. The source driver IC includes a second interface which is connected with the first interface, a second transmitter and a second receiver which are connected with the second interface, and a second data selector which is configured to control the second transmitter and the second receiver. The first data selector and the second data selector are configured to control the first transmitter to communicate with the second receiver in a first period, and to control the second transmitter to communicate with the first receiver in a second period.

公开(公告)号：US20200082767A1

公开(公告)日：2020-03-12

申请号：US15746858

申请日：2017-08-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi CHEN ,  Min HE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: The present disclosure relates to a compensation method and a compensation apparatus for an OLED pixel and a display apparatus, which relates to the field of display technology. The compensation method for an OLED pixel includes: acquiring a threshold voltage of a driving transistor; acquiring a mobility of the driving transistor according to the threshold voltage of the driving transistor; and compensating the OLED pixel according to the mobility of the driving transistor.

公开(公告)号：US20240153430A1

公开(公告)日：2024-05-09

申请号：US18547883

申请日：2021-12-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Mingi CHU ,  Ying HAN ,  Fei YANG ,  Lirong WANG ,  Yi CHEN ,  Yu WANG ,  Jingbo XU ,  Pan LI

IPC: G09G3/20

CPC classification number: G09G3/2074 ,  G09G2300/026 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/16

Abstract: A method for compensating display of a spliced screen, including: obtaining a picture to be displayed; obtaining a theoretical brightness gain of at least one sub-display region in a plurality of sub-display regions; obtaining an actual brightness gain of the central region according to the theoretical brightness gain of at least part of the sub-display regions, and obtaining actual brightness gains of a plurality of first nodes in the non-central region according to the theoretical brightness gain of at least part of the sub-display regions; obtaining an actual brightness gain of at least part of the non-central region by using a bilinear interpolation method according to the actual brightness gains of the plurality of first nodes and an actual brightness gain of at least one second node on the central region; and compensating the picture to be displayed based on an actual brightness gain of the picture to be displayed.

公开(公告)号：US20210013899A1

公开(公告)日：2021-01-14

申请号：US16489150

申请日：2019-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tangxiang WANG ,  Chen SONG ,  Zhan GAO ,  Yi CHEN

IPC: H03M1/68 ,  H03M1/76 ,  G09G3/20

Abstract: Embodiments of the present disclosure provide a digital-to-analog converter, a conversion circuit and a display device. An M-bit digital-to-analog converter includes a higher M−N-bit digital-to-analog conversion circuit, a voltage conversion circuit, an output circuit. The higher M−N-bit digital-to-analog conversion circuit includes: a higher M−N-bit voltage division generation circuit, a first voltage selection circuit. The first voltage selection circuit selects a first voltage from the higher M−N-bit voltage division generation circuit based on a higher M−N-bit digital signal, to be output from a first voltage end. The voltage conversion circuit charges a capacitor circuit under the control of a first switch circuit and a second switch circuit, and discharges a second voltage to a second voltage end through the capacitor circuit. The output circuit controls the first voltage and the second voltage based on a lower N-bit digital signal, generates an analog voltage signal corresponding to an M-bit digital signal.

公开(公告)号：US20170046995A1

公开(公告)日：2017-02-16

申请号：US15160572

申请日：2016-05-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi CHEN ,  Guangcai YUAN

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2360/16

Abstract: The present disclosure provides gamma curve adjusting method and device, and the method includes: substituting a preset maximum brightness value, a preset gamma value and gray-scale values into a standard gamma curve calculation formula, to obtain brightness values corresponding to the gray-scale values; selecting N gray-scale values from the gray-scale values, and actually measuring, in the condition of the selected N gray-scale values, gray-scale voltage values required to reach brightness values, respectively corresponding to the selected N gray-scale values, calculated according to the standard gamma curve calculation formula, where N is a positive integer; obtaining a function formula between gray-scale voltage value and brightness value according to brightness values respectively corresponding to the selected N gray-scale values and the actually measured gray-scale voltage values; and calculating gray-scale voltage values corresponding to brightness values smaller than or equal to the preset maximum brightness value, according to the obtained function formula.

Abstract translation: 本公开提供了伽马曲线调整方法和装置，该方法包括：将预设的最大亮度值，预设的伽马值和灰度值代入标准伽马曲线计算公式，以获得对应于灰度级的亮度值 价值观 从灰度值中选择N个灰度值，并且在所选择的N个灰度值的条件下实际测量分别对应于所选择的N个灰度值所需的灰度级电压值 ，根据标准伽马曲线计算公式计算，其中N为正整数; 根据分别对应于所选择的N个灰度值和实际测量的灰度电压值的亮度值获得灰度电压值和亮度值之间的函数公式; 并且根据获得的函数式计算对应于小于或等于预设最大亮度值的亮度值的灰度电压值。

公开(公告)号：US20150362771A1

公开(公告)日：2015-12-17

申请号：US14550036

申请日：2014-11-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  Chengdu BOE Optoelectronics Technology Co., Ltd.

Inventor： Fujiang JIN ,  Yi CHEN

IPC: G02F1/1368 ,  G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/417

CPC classification number: G02F1/136209 ,  G02F2001/133357 ,  G02F2001/134372 ,  G02F2001/136222 ,  H01L27/1248 ,  H01L27/1259 ,  H01L29/41733

Abstract: The invention discloses a color filter array substrate, a display device, and a manufacturing method of the color filter array substrate. The color filter array substrate comprises a substrate, a thin film transistor array formed on the substrate, and a color filter formed on the thin film transistor array, wherein the color filter array substrate further comprises a black matrix formed on the color filter, and a planarization layer formed on the black matrix. In the invention, position of the black matrix in the color filter array substrate is changed, and the planarization layer is formed on the black matrix, so that the black matrix is isolated from the first and second electrode layers, thus the black matrix is effectively prevented from affecting the electric field between the first and second electrode layers.

Abstract translation: 本发明公开了一种滤色器阵列基板，显示装置和滤色器阵列基板的制造方法。 滤色器阵列基板包括基板，形成在基板上的薄膜晶体管阵列和形成在薄膜晶体管阵列上的滤色器，其中滤色器阵列基板还包括形成在滤色器上的黑矩阵， 形成在黑矩阵上的平坦化层。 在本发明中，黑色矩阵在滤色器阵列基板中的位置改变，并且在黑矩阵上形成平坦化层，使得黑色矩阵与第一和第二电极层隔离，因此黑矩阵是有效的 防止影响第一和第二电极层之间的电场。

公开(公告)号：US20240233652A1

公开(公告)日：2024-07-11

申请号：US17927627

申请日：2021-12-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei YANG ,  Yi CHEN ,  Tianji LI ,  Mingi CHU ,  Zhiqiang DONG ,  Lirong WANG ,  Jingbo XU

IPC: G09G3/3275 ,  G09G3/3233

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/06 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2370/08

Abstract: A source driving circuit includes a first source driver and a second source driver. The first source driver is configured to convert latched first image data into a plurality of first data voltages in response to a first triggering moment of a first data transmission control signal, and output the plurality of first data voltages based on a second triggering moment of the first data transmission control signal. The second source driver is configured to convert latched second image data into a plurality of second data voltages in response to a first triggering moment of a second data transmission control signal, and output the plurality of second data voltages based on a second triggering moment of the second data transmission control signal. The second triggering moment of the first data transmission control signal and the second triggering moment of the second data transmission control signal have a time difference.

公开(公告)号：US20210375207A1

公开(公告)日：2021-12-02

申请号：US17298228

申请日：2020-07-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi CHEN ,  Lirong WANG

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display module includes a display panel, a source driving circuit, and a timing control circuit. The display panel includes a plurality of sub-pixels, at least one sense signal line, and at least one reference sense signal line. Each sub-pixel includes a pixel driving circuit including a driving transistor. The source driving circuit includes at least one analog-to-digital conversion sub-circuit. Two input terminals of an analog-to-digital conversion sub-circuit in the at least one analog-to-digital conversion sub-circuit are respectively coupled to at least one sense signal line and one reference sense signal line. The analog-to-digital conversion sub-circuit is configured to receive a sense voltage signal from the sense signal line and a reference voltage signal from the reference sense signal line, to obtain a sensing digital signal in accordance with a voltage difference between the sense voltage signals and the reference voltage signal, and to output the sensing digital signal.

公开(公告)号：US20160349611A1

公开(公告)日：2016-12-01

申请号：US14890832

申请日：2015-05-21

Applicant: BOE Technology Group Co., Ltd. ,  Chengdu BOE Optoelectronics Technology Co., Ltd.

Inventor： Qingde LONG ,  Jiawei REN ,  Danhui LI ,  Bin GAO ,  Degang ZHAO ,  Zhiyong ZHANG ,  Yi CHEN ,  Changyu FU ,  Xuejie BAI

IPC: G03F7/00 ,  G02B5/20 ,  G03F7/20 ,  G02F1/1335

CPC classification number: G03F7/0007 ,  G02B5/201 ,  G02F1/133516 ,  G03F7/20 ,  G03F7/2008 ,  G03F7/2022

Abstract: A method for manufacturing color filter, a color filter, and a display device including the color filter are disclosed. The method for manufacturing a color filter includes: forming a black matrix on a transparent substrate; forming a photosensitive resist layer on the transparent substrate with the black matrix; disposing a reflection sheet capable of reflecting light on a first side of the transparent substrate to be exposed, the first side being provided with the black matrix; disposing a mask on a second side of the transparent substrate to be exposed, the second side being not provided with the black matrix; and carrying out an exposing process from the second side of the transparent substrate.

Abstract translation: 公开了一种制造滤色器的方法，滤色器以及包括滤色器的显示装置。 制造滤色器的方法包括：在透明基板上形成黑色矩阵; 在具有黑色矩阵的透明基板上形成光敏抗蚀剂层; 在所述透明基板的第一面上设置能够反射光的反射片，使所述第一面设置有所述黑色矩阵; 在要曝光的透明基板的第二面上设置掩模，第二面不设置黑色矩阵; 并从透明基板的第二面进行曝光处理。