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1. 发明申请

US20190355312A1 MURA COMPENSATION METHOD FOR DISPLAY PANEL AND DISPLAY PANEL 审中-公开
公开(公告)号：US20190355312A1
公开(公告)日：2019-11-21
申请号：US16526889
申请日：2019-07-30
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd
发明人： Hua Zhang
IPC分类号： G09G3/34 , G09G3/36 , G09G3/20
摘要： A mura compensation method for display panel is disclosed, including: storing a specific grayscale compensation data table in a timing controller, in which the specific grayscale compensation data table is used for performing grayscale compensation to a fixed mura area in the display panel; obtaining a current grayscale of the display panel; based on the specific grayscale compensation data table, performing grayscale compensation to the current grayscale of a pixel in the fixed mura area of the display panel.

2. 发明授权

US10276112B2 Mura phenomenon compensation method of display panel and display panel 有权
公开(公告)号：US10276112B2
公开(公告)日：2019-04-30
申请号：US15552273
申请日：2017-05-10
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： G09G3/22 , G09G3/36 , G09G3/00
摘要： The embodiment of the present invention discloses a mura phenomenon compensation method of a display panel, comprising steps of: implementing compression for a region of n*m pixels to store a mura compensation value corresponding to a center pixel of each region, wherein the mura compensation value of the center pixel of at least one region is an average mura compensation value of a corresponding region, and n and m are integers larger than or equal to 2; obtaining mura compensation values corresponding to other pixels except the center pixel according to the stored mura compensation value. The embodiment of the present invention further discloses a display panel. The present invention possesses the advantages of saving storage space.

3. 发明授权

US10170063B2 Mura compensation method for display panel and display panel 有权
公开(公告)号：US10170063B2
公开(公告)日：2019-01-01
申请号：US15552292
申请日：2017-05-24
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： G09G3/36 , G09G3/20
摘要： A mura compensation method for display panel is disclosed, including: compressing on an array basis of n*m pixels, storing a default mura compensation value corresponding to a first pixel in each area; based on the default mura compensation value, performing linear interpolation calculation to obtain mura compensation values for pixels in the same area other than the first pixel, and performing mura compensation to the display panel; after performing mura compensation to the display panel, obtaining information of an X-th area still having mura phenomenon, the X-th area being an area formed by compression on an array basis of n*m pixels of the display panel; obtaining a final grayscale compensation curve equation; based on the default mura compensation value and the final grayscale compensation curve equation, calculating supplementary mura compensation values for pixels in the X-th area other than the first pixel; re-performing the mura compensation to the X-th area.

4. 发明申请

US20180366051A1 COMPENSATION METHOD OF MURA PHENOMENON OF CURVED LIQUID CRYSTAL PANEL 审中-公开
公开(公告)号：US20180366051A1
公开(公告)日：2018-12-20
申请号：US16120307
申请日：2018-09-03
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/2007 , G02F2001/136254 , G09G3/006 , G09G3/36 , G09G3/3611 , G09G2320/0233 , G09G2320/0271 , G09G2320/0626 , G09G2360/145 , G09G2360/16
摘要： A compensation method of mura phenomenon of a curved liquid crystal panel is provided, including first, obtaining image mura compensation data of the curved liquid crystal panel according to a collected image of a camera, the image mura compensation data including: a mura compensation value and a compensation point location corresponded with the mura compensation value, the compensation point location being a location of a compensation point in the collected image of the camera; then implementing correction to the compensation point location in the obtained image mura compensation data to acquire a compensation point location after correction, which is employed to replace the compensation point location in the image mura compensation data to obtain plane mura compensation data of the curved liquid crystal panel; and finally, implementing mura compensation to the curved liquid crystal panel according to the plane mura compensation data.

5. 发明授权

US09934738B2 Panel signal control circuit, display panel and display device 有权
公开(公告)号：US09934738B2
公开(公告)日：2018-04-03
申请号：US14905077
申请日：2015-10-23
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/36 , G09G2300/0408 , G09G2300/0871 , G09G2310/0248 , G09G2310/0289 , G09G2310/08 , G09G2320/0257 , G09G2330/021 , G09G2330/027 , G09G2330/12
摘要： The present invention provides a panel signal control circuit, a display panel and a display device. The panel signal control circuit comprises: a PWM IC and a level shift IC, and the panel signal control circuit comprises further comprises: a Vin voltage divider circuit; one end of the Vin voltage divider circuit is coupled to an input port of an input working voltage Vin of the PWM IC, and the other end of the Vin voltage divider circuit is grounded; a voltage divider interface of the Vin voltage divider circuit is coupled to a pin a of the Level shift IC, and the pin a is a voltage monitor pin, and as the voltage of the pin a is lower than an activation voltage threshold, respective output clock CK pins of the Level shift IC output sync signals of an output working voltage VGH of the PWM IC.

6. 发明授权

US09747845B2 Backlight control circuit, electronic device and display panel driving method 有权
公开(公告)号：US09747845B2
公开(公告)日：2017-08-29
申请号：US14413150
申请日：2014-01-17
申请人： SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
发明人： Hua Zhang , Xianming Zhang
IPC分类号： G09G3/36 , G09G3/34 , H05B33/08 , H05B37/02 , H04N13/04 , G09G3/00
CPC分类号： G09G3/3413 , G09G3/003 , G09G3/3406 , G09G3/342 , G09G2310/0237 , G09G2320/0209 , H04N13/30 , H05B33/0827 , H05B37/029
摘要： A display panel driving method for driving a LED module of an electronic device to emit light, the method includes steps: controlling to scan a left-eye image and a right-eye image when the electronic device works at a 3D mode (S401); controlling the LED module to turn off and does not emits light during a predetermined period less than a scanning time of the left-eye image or the right-eye image, after switching to scan the left-eye image and the right-eye image (S402); and controlling the LED module to turn on and emit light after the predetermined period has passed (S403). The present invention also provides a backlight control circuit and an electronic device, the present invention capable of controlling the backlight module to emit light via the same signal and do not cause the interference between different signals.

7. 发明授权

US09723684B2 LED backlight driving circuit 有权
公开(公告)号：US09723684B2
公开(公告)日：2017-08-01
申请号：US14786016
申请日：2015-06-25
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： H05B33/08 , H05B41/285
CPC分类号： H05B33/0887 , G09G3/34 , G09G3/3406 , G09G2330/12 , H05B33/0815 , H05B33/0827 , H05B33/089 , H05B41/2855
摘要： An LED backlight driving circuit is disclosed. The present disclosure relates to the technical field of display, whereby the technical problem of the incorrect detection of the short circuit detection module when the open circuit malfunction occurs to one LED backlight unit and the output voltage of the LED backlight driving circuit rises can be solved.

8. 发明申请

US20170150572A1 LED BACKLIGHT DRIVING CIRCUIT 有权
公开(公告)号：US20170150572A1
公开(公告)日：2017-05-25
申请号：US14786016
申请日：2015-06-25
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang
IPC分类号： H05B33/08
CPC分类号： H05B33/0887 , G09G3/34 , G09G3/3406 , G09G2330/12 , H05B33/0815 , H05B33/0827 , H05B33/089 , H05B41/2855
摘要： An LED backlight driving circuit is disclosed. The present disclosure relates to the technical field of display, whereby the technical problem of the incorrect detection of the short circuit detection module when the open circuit malfunction occurs to oneLED backlight unit and the output voltage of the LED backlight driving circuit rises can be solved.

9. 发明授权

US09510404B2 Backlight drive circuit, method for driving the same, and liquid crystal display device 有权
标题翻译：背光驱动电路，其驱动方法以及液晶显示装置
公开(公告)号：US09510404B2
公开(公告)日：2016-11-29
申请号：US14417653
申请日：2015-01-13
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Hua Zhang , Fei Li
IPC分类号： G09G3/36 , H05B33/08 , G02F1/1335 , G09G3/34 , G09G3/00
CPC分类号： H05B33/0815 , G02F1/133603 , G09G3/003 , G09G3/3406 , G09G2310/024 , G09G2320/0233 , G09G2320/041 , G09G2320/064 , G09G2330/045 , H05B33/0827 , H05B33/086
摘要： Related to is a backlight drive circuit and a method for driving the backlight drive circuit, and a resulting liquid crystal display device. The backlight drive circuit comprises a plurality of light emitting cells divided into several backlight partitions in an even manner; pulse dimming signal units of a same number with the backlight partitions, each of the pulse dimming signal units outputting a pulse dimming signal; and a plurality of backlight drive units, each of which is electrically connected to all of the pulse dimming signal units to receive respective pulse dimming signals output by the pulse dimming signal units, and meanwhile each of which is further electrically connected to an identical number of light emitting cells in all of the backlight partitions. When a pulse dimming signal is output from a pulse dimming signal unit, all of the backlight drive units supply power to their respectively connected light emitting cells in a corresponding backlight partition, so as to drive said light emitting cells to emit light.
摘要翻译：涉及背光驱动电路和驱动背光驱动电路的方法以及所得到的液晶显示装置。背光驱动电路包括以均匀的方式分成多个背光隔板的多个发光单元; 脉冲调光信号单元具有相同数量的背光分区，每个脉冲调光信号单元输出脉冲调光信号; 以及多个背光驱动单元，其各自电连接到所有脉冲调光信号单元，以接收由脉冲调光信号单元输出的各个脉冲调光信号，同时每个背光驱动单元进一步电连接到相同数量的在所有背光分区中发光单元。当从脉冲调光信号单元输出脉冲调光信号时，所有背光驱动单元向对应的背光分隔件中的分别连接的发光单元供电，以便驱动所述发光单元发光。

10. 发明授权

US09310644B2 Liquid crystal display, LED backlight source, and the driving method thereof 有权
标题翻译：液晶显示器，LED背光源及其驱动方法
公开(公告)号：US09310644B2
公开(公告)日：2016-04-12
申请号：US13877167
申请日：2013-03-13
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.
发明人： Anle Hu , Xianming Zhang , Hua Zhang
IPC分类号： H05B37/02 , G02F1/1335 , H05B33/08
CPC分类号： G02F1/133603 , G02F2001/133612 , H05B33/0812 , H05B33/0815
摘要： A liquid crystal display, a LED backlight source and the driving method thereof are disclosed. The LED backlight source includes a DC voltage input for inputting DC voltage, a boost circuit for increasing the voltage of the DC input and outputting the boosted DC voltage, a LED strip and a constant current driving circuit. The LED strip includes a plurality of serially connected LEDs and a first resistor (R1). The power consumption of the first MOS is reduced when the LEDs are driven. As such, the power consumption of the constant current driving circuit is reduced, so does the temperature. In this way, the energy conversion efficiency of the driving circuit of the LED backlight source is enhanced, and components within the constant current driving circuit are prevented from being burned out.
摘要翻译：公开了液晶显示器，LED背光源及其驱动方法。 LED背光源包括用于输入DC电压的DC电压输入，用于增加DC输入的电压并输出升压的DC电压的升压电路，LED条和恒流驱动电路。 LED条包括多个串联LED和第一电阻（R1）。当驱动LED时，第一MOS的功耗降低。因此，恒流驱动电路的功耗降低，温度也降低。以这种方式，提高了LED背光源的驱动电路的能量转换效率，并且防止恒流驱动电路内的部件被烧毁。

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