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公开(公告)号：US20220139316A1
公开(公告)日：2022-05-05
申请号：US17259594
申请日：2020-03-30
发明人： Hong LIU , Qibing GU , Lingyun SHI , Ming CHEN , Xiurong WANG , Guofeng HU , Mingjian YU , Donghui WANG
IPC分类号： G09G3/3233
摘要： Pixel structure, driving method thereof and display device are disclosed. The pixel structure includes: light-emitting device having first electrode coupled to corresponding first voltage line. Driving chip includes: receiving circuit configured to decode first digital clock signal on first control line in display phase to obtain first address data and light emission data; address storage circuit configured to store reference address data before the display phase; data processing circuit configured to output PWM signal and current control signal corresponding to each light-emitting device according to the light emission data when the first address data is the same as the reference address data; current output circuit configured to output driving current according to the current control signal; and gating circuit configured to sequentially receive the PWM signal corresponding to each light-emitting device and transmit the driving current to the output terminal when the PWM signal is in active-level state.
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公开(公告)号：US20210335184A1
公开(公告)日：2021-10-28
申请号：US16337741
申请日：2018-11-13
发明人： Yanhui XI , Bin DAI , Xiaomang ZHANG , Haijun NIU , Kuanjun PENG , Xiaolong LI , Donghui WANG , Yan SUN
摘要： A multi-primary color conversion method is provided to include: establishing a spatial gamut model of a display panel; determining a target peripheral surface corresponding to the target color according to the color coordinates of the target color and color coordinates of a color corresponding to each vertex of each peripheral surface; obtaining reference gray scales of a part of primary colors of the target color according to gray scales of the primary colors of a color corresponding to each vertex of the target peripheral surface; obtaining reference gray scales of the rest primary colors of the target color and a reference luminance of the target color; and respectively converting the reference gray scales of the plurality of primary colors of the target color into target gray scales according to a proportional relationship between the reference luminance and the target luminance of the target color.
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公开(公告)号：US20210142728A1
公开(公告)日：2021-05-13
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 , G09G3/3291 , G09G3/3266
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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4.发明申请公开(公告)号：US20200226965A1
公开(公告)日：2020-07-16
申请号：US16482107
申请日：2018-09-27
发明人： Yanhui XI , Bin DAI , Xiaomang ZHANG , Yan SUN , Kuanjun PENG , Haijun NIU , Xiaolong LI , Donghui WANG
IPC分类号： G09G3/20
摘要： Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3≤M, 3≤N, M is different from N, and M and N are positive integers.
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公开(公告)号：US20200160768A1
公开(公告)日：2020-05-21
申请号：US16399510
申请日：2019-04-30
发明人： Donghui WANG , Hong WANG , Lijun YUAN , Yanhui XI , Haoliang ZHENG , Yuxin BI
IPC分类号： G09G3/20
摘要： The present disclosure discloses a source driving circuit and a display panel. The source driving circuit includes a plurality of driving sub-circuits, and each of the plurality of driving sub-circuits includes: a driver, including a plurality of source channels; a plurality of switches, first terminals of the plurality of switches are electrically connected to a plurality of data lines of a display panel in one-to-one correspondence, wherein each of the plurality of source channels is electrically connected to second terminals of at least two of the plurality of switches; and a control line, electrically connected to control terminals of the plurality of switches. Sub-pixels corresponding to data lines that are electrically connected to a same source channel through the switches have the same polarity and the same color.
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6.发明申请公开(公告)号：US20200143732A1
公开(公告)日：2020-05-07
申请号：US16473543
申请日：2018-11-13
发明人： Yanhui XI , Bin DAI , Xiaomang ZHANG , Yan SUN , Haijun NIU , Kuanjun PENG , Yuxin BI , Donghui WANG
IPC分类号： G09G3/20
摘要： The present application provides a multiple primary color conversion method, including: determining color triangles according to color coordinates of a target color; computing grayscale components of l primary colors corresponding to the target color in the color triangles; in step S130, obtaining initial grayscales of l primary colors; in step S140, judging whether there is an overflow grayscale; if yes, then performing step S160, if no, then performing step S150; in step S150, adjusting initial brightness components corresponding to grayscale components of the same primary color as the overflow grayscale, computing grayscale components of l primary colors in color triangles including the primary color of the overflow grayscale, and performing steps S130 and S140; in step S160, determining the initial grayscales of l primary colors as grayscales of l primary colors of the target color.
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公开(公告)号：US20180294638A1
公开(公告)日：2018-10-11
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
CPC分类号： H02H5/047 , H02H1/0007 , H02H5/042
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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