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1. 发明授权

US10650736B2 Display apparatus and voltage calibration method 有权
公开(公告)号：US10650736B2
公开(公告)日：2020-05-12
申请号：US16286904
申请日：2019-02-27
申请人： Raydium Semiconductor Corporation
发明人： Chi-Hsiang Oulee , Tzong-Yau Ku , Jun-Ren Shih
IPC分类号： G09G3/3208
摘要： A display apparatus and a voltage calibration method are disclosed. The display apparatus includes a ramp voltage generator, a ramp counter and a timing controller. The ramp voltage generator is configured to generate a ramp voltage. The ramp counter is coupled to the ramp voltage generator and configured to start counting when the ramp voltage generator generates the ramp voltage. The timing controller is coupled to the ramp voltage generator and the ramp counter respectively. When the ramp voltage is increased to be equal to a reference voltage, the timing controller compares an instant count value of the ramp counter with a default value and selectively calibrates a rising slope of the ramp voltage generated by the ramp voltage generator according to a comparing result of the instant count value and the default value.

2. 发明授权

US10163400B2 Display driving apparatus 有权
公开(公告)号：US10163400B2
公开(公告)日：2018-12-25
申请号：US15603657
申请日：2017-05-24
申请人： Raydium Semiconductor Corporation
发明人： Huang-Ren Chen , Cheng-Nan Lin , Shao-Ping Hung
IPC分类号： G09G3/3258 , G09G3/3275
摘要： A display driving apparatus including a lightness adjusting unit, a gamma adjusting unit, a pre-charging voltage adjusting unit and a source driving unit is disclosed. The lightness adjusting unit receives and adjusts a lightness of an image data. The gamma adjusting unit adjusts a gamma voltage corresponding to the image data to generate a source data voltage. The pre-charging voltage adjusting unit calculates a highest data voltage and a lowest data voltage which can be outputted by a source electrode and adjusts a pre-charging voltage accordingly to make the adjusted pre-charging voltage the same with the highest data voltage or the lowest data voltage or only a shifted voltage different from the highest data voltage or the lowest data voltage of the image data. The source driving unit outputs the adjusted pre-charging voltage and the source data voltage to a display panel respectively.

3. 发明授权

US10001892B2 Self-capacitive touch and force sensing apparatus and self-capacitive touch and force sensing method 有权
公开(公告)号：US10001892B2
公开(公告)日：2018-06-19
申请号：US15408469
申请日：2017-01-18
申请人： Raydium Semiconductor Corporation
发明人： Chen-Wei Yang
IPC分类号： G06F3/044 , G06F3/041
CPC分类号： G06F3/044 , G06F3/0418 , G06F2203/04105 , G06F2203/04107
摘要： A self-capacitive touch and force sensing apparatus includes a metal layer, a sensing component layer, an air gap layer and a processing module. The sensing component layer is disposed above metal layer. The air gap layer is formed between metal layer and sensing component layer. When the self-capacitive touch and force sensing apparatus is operated in a self-capacitive touch sensing mode, metal layer is driven and synchronized with a touch signal, so that no capacitive effect between sensing component layer and metal layer and a first capacitance change is sensed; when the self-capacitive touch and force sensing apparatus is operated in a self-capacitive force sensing mode, metal layer is grounded, so that there is a capacitive effect between sensing component layer and metal layer and a second capacitance change is sensed. The processing module obtains a third capacitance change according to first capacitance change and second capacitance change.

4. 发明授权

US09983750B2 In-cell mutual-capacitive touch panel 有权
公开(公告)号：US09983750B2
公开(公告)日：2018-05-29
申请号：US15164563
申请日：2016-05-25
申请人： Raydium Semiconductor Corporation
发明人： Kun-Pei Lee , Yi-Ying Lin , Chang-Ching Chiang , Yu-Chin Hsu
IPC分类号： G06F3/041 , G06F3/044
CPC分类号： G06F3/044 , G06F3/0412 , G06F3/0416 , G06F2203/04112
摘要： An in-cell mutual-capacitive touch panel is disclosed. The in-cell mutual-capacitive touch panel includes a plurality of pixels. A laminated structure of each pixel includes a substrate, a TFT layer, a liquid crystal layer, a color filter layer and a glass layer. The TFT layer is disposed on the substrate. A first conductive layer and a common electrode are disposed in the TFT layer. The first conductive layer is arranged in mesh type or only arranged along a first direction in an active area of the in-cell mutual-capacitive touch panel. The liquid crystal layer is disposed above the TFT layer. The color filter layer is disposed above the liquid crystal layer. The glass layer is disposed above the color filter layer.

5. 发明授权

US09983723B2 Panel display driving circuit and touch time arranging method 有权
公开(公告)号：US09983723B2
公开(公告)日：2018-05-29
申请号：US15206629
申请日：2016-07-11
申请人： Raydium Semiconductor Corporation
发明人： Hung Li
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F3/0412
摘要： A touch time arranging method, applied to a panel display driving circuit having touch timing control function in a touch display panel, includes: dividing the resolution of touch display panel along a first direction by K touch regions of touch display panel along the first direction to obtain a first quotient; obtaining a digital combination including a first value I and a second value J closest to the integer part of first quotient; if the ratio of the number of occurrences of the first value and second value in the digital combination is X:Y, dividing the resolution by (I*X+J*Y) to obtain a second quotient; when the touch display panel displays R lines in order under a display mode, the touch display panel is switched to a touch mode every I lines and J lines alternately according to the digital combination to arrange a touch time to perform touch sensing.

6. 发明授权

US09978324B2 Driver applied to display apparatus 有权
公开(公告)号：US09978324B2
公开(公告)日：2018-05-22
申请号：US15170736
申请日：2016-06-01
申请人： Raydium Semiconductor Corporation
发明人： Kun-Chan Hsieh , Chih Chuan Huang , Feng-Li Lin
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/3648 , G09G3/3688
摘要： A driver applied to a display apparatus is disclosed. The driver includes 2(N+1) source channels, M display lines, and an output polarity control module. N and M are positive integers. Polarity outputs of the M display lines are independently controlled and have no dependencies between each other. The output polarity control module provides (N+1) polarity inversion control signals. A K-th polarity inversion control signal of the (N+1) polarity inversion control signals controls polarities outputted by the (2K−1)-th source channel and the 2K-th source channel of the 2(N+1) source channels. K is a positive integer and 1≤K≤(N+1).

7. 发明授权

US09954520B2 Power on reset circuit applied to gate driver of display apparatus 有权
公开(公告)号：US09954520B2
公开(公告)日：2018-04-24
申请号：US15164708
申请日：2016-05-25
申请人： Raydium Semiconductor Corporation
发明人： Kai-Lan Chuang
IPC分类号： H03K17/22 , G09G3/20
CPC分类号： H03K17/223 , G09G3/20 , G09G2300/0426 , G09G2310/0267 , G09G2310/061
摘要： A power on reset circuit applied to a gate driver of a display apparatus is disclosed. The power on reset circuit is coupled between an operating voltage and a ground terminal. The power on reset circuit includes an output terminal, a first transistor, a second transistor, a resistor, and a buffer circuit. The first transistor is coupled between the operating voltage and a first node. A gate of first transistor is coupled to the first node. The second transistor is coupled between the operating voltage and the first node. A gate of second transistor is coupled to the ground terminal. The resistor is coupled between the first node and ground terminal. The buffer circuit is coupled between the first node and output terminal and outputs a reset signal through the output terminal. A second threshold voltage of second transistor is larger than a first threshold voltage of first transistor.

8. 发明授权

US09696851B2 Capacitive touch panel having an on-cell type and a laminated structure 有权
公开(公告)号：US09696851B2
公开(公告)日：2017-07-04
申请号：US15420271
申请日：2017-01-31
申请人： Raydium Semiconductor Corporation
发明人： Yi-Ying Lin , Kuan-Ming Lin , Hsin-Wei Shieh , Kun-Pei Lee
IPC分类号： G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1335 , G02F1/1343
CPC分类号： G06F3/0418 , G02F1/13338 , G02F1/133528 , G02F1/134309 , G02F1/13439 , G06F3/0412 , G06F3/044 , G06F2203/04104 , G06F2203/04111 , G06F2203/04113
摘要： An on-cell capacitive touch panel is disclosed. Its laminated structure includes a LCD module, a touch sensing module, and a polarizing module. The touch sensing module is disposed on the LCD module. The polarizing module is disposed on the touch sensing module. The touch sensing module includes a touch sensor pattern having a single-layer ITO structure. The touch sensor pattern includes a first pattern unit and a second pattern unit which are the same and both have at least one first electrode, second electrode, and extending electrode. The first electrode is arranged along a first direction and the second electrode is arranged along a second direction. The first direction and second direction are vertical. The first electrode crosses the second electrode via a bridge structure. The extending electrode surrounds the first electrode and it is arranged along the first direction.

9. 发明授权

US09473143B2 Driving circuit for generating voltage control signals 有权
标题翻译：用于产生电压控制信号的驱动电路
公开(公告)号：US09473143B2
公开(公告)日：2016-10-18
申请号：US14703588
申请日：2015-05-04
申请人： Raydium Semiconductor Corporation
发明人： Kuen-Shan Chang
IPC分类号： H03K3/00 , H03K19/0185 , H02M7/537
CPC分类号： H03K19/018557 , H02M7/537
摘要： A driving circuit includes an activating end, an operation switch, a voltage control end, and an output switch. The activating end selectively outputs a first voltage control signal and a second voltage control signal. The operation switch is turned off according to the first voltage control signal to generate a low voltage control signal or is turned on according to the second voltage control signal to generate a high voltage control signal. The voltage control end generates a low voltage according to the low voltage control signal or generates a bias voltage according to the high voltage control signal. The output switch is turned off according to the low voltage to determine that an output voltage is the same as the low voltage, or is turned on according to the bias voltage to determine that the output voltage is the same as the high voltage.
摘要翻译：驱动电路包括启动端，操作开关，电压控制端和输出开关。激活端选择性地输出第一电压控制信号和第二电压控制信号。根据第一电压控制信号关闭操作开关以产生低电压控制信号，或者根据第二电压控制信号导通，以产生高电压控制信号。电压控制端根据低电压控制信号产生低电压，或根据高电压控制信号产生偏置电压。输出开关根据低电压关闭，以确定输出电压与低电压相同，或根据偏置电压导通，以确定输出电压与高电压相同。

10. 发明授权

US09395825B2 Touch input device 有权
标题翻译：触摸输入设备
公开(公告)号：US09395825B2
公开(公告)日：2016-07-19
申请号：US14448424
申请日：2014-07-31
申请人： Raydium Semiconductor Corporation
发明人： Chia-Hsiu Lin , Te-Chang Lin , Ya-Ling Lu , Yi-Ming Chen , Wei-Yuan Cheng
IPC分类号： G06F3/033 , G06F3/0354 , G06F3/041
CPC分类号： G06F3/03545 , G06F3/033 , G06F3/041 , G06F3/0414
摘要： A touch input device includes a body and a sensing module. The body has an external surface which encloses an accommodation space. The sensing module is disposed in the accommodation space and includes a sensing unit and a signal operation unit. The sensing unit generates a sensing signal. The signal operation unit generates a surface result signal according to the sensing signal to adjust a surface character of the external surface.
摘要翻译：触摸输入装置包括主体和感测模块。身体具有包围住宿空间的外表面。感测模块设置在容纳空间中，并且包括感测单元和信号操作单元。感测单元产生感测信号。信号操作单元根据感测信号产生表面结果信号，以调整外表面的表面特性。

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