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公开(公告)号：US20210335232A1
公开(公告)日：2021-10-28
申请号：US16476976
申请日：2018-08-16
发明人： Ran Jiang , Hai Kang , Donghui Wang , Chengchen Yan , Shengfei Ma
IPC分类号： G09G3/3233
摘要： The present application discloses a method for driving a pixel circuit. The method includes initializing a voltage setting in a pixel circuit including at least a driving transistor coupled to a light-emitting device and obtaining a first threshold voltage of the driving transistor. The method further includes inputting a first data voltage to the pixel circuit to generate a first driving current independent of the first threshold voltage, to drive light emission of the light-emitting device in a current cycle. Additionally, the method includes generating a compensation voltage via a feedback sub-circuit based on a change of the first driving current upon a second threshold voltage of the light-emitting device. Furthermore, the method includes inputting a second data voltage combined with the compensation voltage as a negative feedback to generate a second driving current to drive light emission of the light-emitting device in a next cycle.
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公开(公告)号：US10804694B2
公开(公告)日：2020-10-13
申请号：US15845359
申请日：2017-12-18
发明人： Ran Jiang , Hai Kang , Donghui Wang , Lei Hua , Zhen Tang , Weiwei Pan , Hongxun Zhang
摘要： An embodiment of the present disclosure discloses an over-temperature protection circuitry and a driving method. The circuit includes a source circuit, a comparator circuit and an output circuit, wherein the comparator circuit includes a thermistor, a first resistor and a comparator, the source circuit is connected to a first input terminal of the comparator via the thermistor and is connected to a second input terminal of the comparator via the first resistor; and the comparator circuit is configured to compare a first signal from the first input terminal with a second signal from the second input terminal, and output a control signal according to a comparison result, the control signal is an over-temperature control signal in the case that the comparison result indicates that the temperature is greater than or equal to a protection threshold, and the output circuit is configured to output an disenabling signal.
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公开(公告)号：US11295666B2
公开(公告)日：2022-04-05
申请号：US16476976
申请日：2018-08-16
发明人： Ran Jiang , Hai Kang , Donghui Wang , Chengchen Yan , Shengfei Ma
IPC分类号： G09G3/3233
摘要： The present application discloses a method for driving a pixel circuit. The method includes initializing a voltage setting in a pixel circuit including at least a driving transistor coupled to a light-emitting device and obtaining a first threshold voltage of the driving transistor. The method further includes inputting a first data voltage to the pixel circuit to generate a first driving current independent of the first threshold voltage, to drive light emission of the light-emitting device in a current cycle. Additionally, the method includes generating a compensation voltage via a feedback sub-circuit based on a change of the first driving current upon a second threshold voltage of the light-emitting device. Furthermore, the method includes inputting a second data voltage combined with the compensation voltage as a negative feedback to generate a second driving current to drive light emission of the light-emitting device in a next cycle.
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公开(公告)号：US11217172B2
公开(公告)日：2022-01-04
申请号：US16622637
申请日：2019-05-31
发明人： Ran Jiang , Hai Kang , Donghui Wang , Yongquan Lu , Yunyun Zhang
IPC分类号： G09G3/3258 , G09G3/3266 , G09G3/3291
摘要： A pixel circuit and driving method thereof, a display device are provided, and the pixel circuit includes a switching sub-circuit, a threshold voltage extraction sub-circuit, an initialization sub-circuit, a feedback compensation sub-circuit, a driving transistor and a light emitting device. The threshold voltage extraction sub-circuit is coupled to a control electrode of the driving transistor, and configured to extract and store a threshold voltage of the driving transistor in response to an enable signal and configured to apply the threshold voltage and a data voltage written by the switching sub-circuit to the control electrode of the driving transistor. The feedback compensation sub-circuit is coupled to a second terminal of the light emitting device and a data line, and configured to generate a data voltage compensation signal for a next display image frame according to an operating current of the light emitting device and supply it to the data line. (FIG. 1).
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公开(公告)号：US10107955B2
公开(公告)日：2018-10-23
申请号：US14914318
申请日：2015-09-17
发明人： Xuerong Wang , Caizheng Zhang , Hai Kang
IPC分类号： G02F1/13357 , F21V8/00
摘要： A display backlight module includes a light guide plate, a light source disposed on a side of the light guide plate, and at least one of a flexible printed circuit board and a backplate, such that an end of the light guide plate closest to the light source is fixed on the flexible printed circuit board or the backplate by a plurality of double-sided adhesive blocks spaced apart from each other.
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公开(公告)号：US10018769B2
公开(公告)日：2018-07-10
申请号：US15252386
申请日：2016-08-31
发明人： Qingping Yin , Ruijun Dong , Tingting Zhao , Caizheng Zhang , Hai Kang , Xuerong Wang
IPC分类号： F21V8/00
CPC分类号： G02B6/0065 , G02B6/0018 , G02B6/0031
摘要： The present disclosure relates to a field of display technology and discloses a light guide plate and a method of producing the same. The light guide plate includes a body having a surface which forms an incident surface, an exit surface and a slope, wherein the incident surface is perpendicular to the exit surface, and the incident surface and the exit surface are connected by the slope, wherein in a direction perpendicular to the incident surface and from the incident surface towards the exit surface, thickness of location of the light guide plate where the slope is formed is gradually reduced, and wherein the slope is provided with a light guide component for guiding the light that is emitted towards the slope towards an area inside the light guide plate that corresponds to the exit surface.
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公开(公告)号：US20160313487A1
公开(公告)日：2016-10-27
申请号：US14914318
申请日：2015-09-17
发明人： Xuerong Wang , Caizheng Zhang , Hai Kang
IPC分类号： F21V8/00
CPC分类号： G02B6/009 , G02B6/0068 , G02B6/0073 , G02B6/0083 , G02B6/0091
摘要： A backlight module (100), a display panel and a display device are disclosed. The backlight module (100) includes a light guide plate (3), a light source (11) disposed on a side of the light guide plate, and at least one of a flexible printed circuit board (8) and a backplate (1). An end of the light guide plate (3) which is close to the light source (11) is fixed on the flexible printed circuit board (8) and/or the backplate through segmented double-sided adhesive tapes (10), and each of the segmented double-sided adhesive tapes (10) includes a plurality of double-sided adhesive blocks (101) being spaced apart from each other.
摘要翻译： 公开了背光模块（100），显示面板和显示装置。 背光模块（100）包括导光板（3），设置在导光板一侧的光源（11）和柔性印刷电路板（8）和背板（1）中的至少一个， 。 靠近光源（11）的导光板（3）的端部通过分段的双面胶带（10）固定在柔性印刷电路板（8）和/或背板上，并且 分段的双面胶带（10）包括彼此间隔开的多个双面粘合块（101）。
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公开(公告)号：US20170285250A1
公开(公告)日：2017-10-05
申请号：US15252386
申请日：2016-08-31
发明人： Qingping Yin , Ruijun Dong , Tingting Zhao , Caizheng Zhang , Hai Kang , Xuerong Wang
IPC分类号： F21V8/00
CPC分类号： G02B6/0065 , G02B6/0018 , G02B6/002
摘要： The present disclosure relates to a field of display technology and discloses a light guide plate and a method of producing the same. The light guide plate includes a body having a surface which forms an incident surface, an exit surface and a slope, wherein the incident surface is perpendicular to the exit surface, and the incident surface and the exit surface are connected by the slope, wherein in a direction perpendicular to the incident surface and from the incident surface towards the exit surface, thickness of location of the light guide plate where the slope is formed is gradually reduced, and wherein the slope is provided with a light guide component for guiding the light that is emitted towards the slope towards an area inside the light guide plate that corresponds to the exit surface.
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