公开(公告)号：US20080062704A1

公开(公告)日：2008-03-13

申请号：US11518349

申请日：2006-09-08

申请人： Yu-Wei Chang ,  Jen-Huai Chang ,  Wen-Feng Cheng

发明人： Yu-Wei Chang ,  Jen-Huai Chang ,  Wen-Feng Cheng

IPC分类号： F21V5/00

CPC分类号： F21V3/04 ,  F21V5/02 ,  F21V9/06 ,  G02B5/0231 ,  G02B5/0268 ,  G02B5/0278 ,  G02B5/045 ,  G02F2001/133607 ,  G02F2201/086

摘要： A high uniformity diffuser is provided, wherein a light emission surface of the diffuser is added with prismatic lenses, such that a passage of light is changed through refraction or reflection caused when the light of lamps passes through the lens, in order to achieve an effect of scattering the light.

摘要翻译： 提供了一种高均匀性漫射器，其中扩散器的发光表面添加有棱镜透镜，使得通过在灯的光通过透镜时引起的折射或反射来改变光的通过，以便实现效果 散射光。

公开(公告)号：US07210835B2

公开(公告)日：2007-05-01

申请号：US10863490

申请日：2004-06-09

申请人： Jen Huai Chang ,  Jyh-Horng Wang ,  Yu-Wei Chang

发明人： Jen Huai Chang ,  Jyh-Horng Wang ,  Yu-Wei Chang

IPC分类号： F21V5/00

CPC分类号： G02B6/0051 ,  G02B6/0065 ,  Y10T428/31551

摘要： A diffusion sheet structure in the direct type backlight module with anti-UV rays function and its manufacturing method discloses a diffusion sheet in the backlight module applied to TFT-LCD TV, and plural layer of the diffusion sheet made by a method of a multi-layer co-extrusion. The diffusion sheet advocates that while producing diffusion layer, at least a ultra-violet rays absorption layer set on the surface of diffusion layer at the same time to achieve insulating ultra-violet rays directly irradiated on the diffusion sheet and to avoid yellow and pyrolysis phenomenon occurred on the diffusion sheet. These results in avoiding the deviation caused from color temperature and chromaticity coordinate of TFT-LCD TV because of yellow diffusion sheet, then to achieve the purpose of improving product quality and materials lifespan.

摘要翻译： 具有防紫外线功能的直接型背光模块中的扩散片结构及其制造方法公开了一种应用于TFT-LCD TV的背光模块中的漫射片，以及由多层膜形成的多层扩散片， 层共挤出。 扩散片主张在扩散层生成的同时，至少在扩散层表面设置紫外线吸收层，以实现直接照射在扩散片上的绝缘紫外线，并避免黄色和热解现象 发生在扩散片上。 这些结果避免了由于黄色扩散片而导致的TFT-LCD电视的色温和色度坐标偏差，从而达到提高产品质量和材料寿命的目的。

公开(公告)号：US20070098998A1

公开(公告)日：2007-05-03

申请号：US11640368

申请日：2006-12-18

申请人： Jen-Huai Chang ,  Jyh Wang ,  Yu-Wei Chang

发明人： Jen-Huai Chang ,  Jyh Wang ,  Yu-Wei Chang

IPC分类号： B32B27/40

CPC分类号： G02B6/0051 ,  G02B6/0065 ,  Y10T428/31551

摘要： A diffusion sheet structure in the direct type backlight module with anti-UV rays function and its manufacturing method discloses a diffusion sheet in the backlight module applied to TFT-LCD TV, and plural layer of the diffusion sheet made by a method of a multi-layer co-extrusion. The diffusion sheet advocates that while producing diffusion layer, at least a ultra-violet rays absorption layer set on the surface of diffusion layer at the same time to achieve insulating ultra-violet rays directly irradiated on the diffusion sheet and to avoid yellow and pyrolysis phenomenon occurred on the diffusion sheet. These results in avoiding the deviation caused from color temperature and chromaticity coordinate of TFT-LCD TV because of yellow diffusion sheet, then to achieve the purpose of improving product quality and materials lifespan.

公开(公告)号：US08836298B1

公开(公告)日：2014-09-16

申请号：US13968130

申请日：2013-08-15

申请人： Tung-Sheng Chen ,  Hung-Shou Nien ,  Yu-Wei Chang ,  Chung-Sheng Cheng

发明人： Tung-Sheng Chen ,  Hung-Shou Nien ,  Yu-Wei Chang ,  Chung-Sheng Cheng

IPC分类号： G05F1/40 ,  G05F3/04

CPC分类号： G05F3/04 ,  H02M3/1584 ,  H02M2001/0032 ,  H02M2001/0048 ,  Y02B70/1491 ,  Y02B70/16

摘要： The present invention discloses a multi-phase switching regulator and a control method thereof. The multi-phase switching regulator includes plural power stage circuits, wherein at least one power stage circuit is enabled or disabled according to a phase adding/shedding signal; at least one zero current detection circuit, which is coupled to one of the power stage circuit, for generating a trigger signal according to an inductor current in a corresponding one of the power stage circuits, a zero current reference signal, and an average reference signal; and a phase control circuit controlling the phase adding/shedding operation according to the trigger signal.

摘要翻译： 本发明公开了一种多相开关调节器及其控制方法。 多相开关调节器包括多个功率级电路，其中至少一个功率级电路根据相位相减信号而使能或禁止; 至少一个零电流检测电路，其耦合到所述功率级电路之一，用于根据所述功率级电路中的相应一个电感电流产生触发信号，零电流参考信号和平均参考信号 ; 以及相位控制电路，根据触发信号控制相位加/减动作。

公开(公告)号：US08643354B2

公开(公告)日：2014-02-04

申请号：US13134035

申请日：2011-05-26

申请人： Yu-Wei Chang ,  Yuan-Huang Cheng ,  Ting-Hung Wang ,  Chia-Jung Lee ,  Chung-Sheng Cheng

发明人： Yu-Wei Chang ,  Yuan-Huang Cheng ,  Ting-Hung Wang ,  Chia-Jung Lee ,  Chung-Sheng Cheng

IPC分类号： G05F1/40

CPC分类号： H02M3/1584 ,  H02M2003/1586

摘要： The present invention discloses a multi-phase switching regulator, a driver circuit of a multi-phase switching regulator, and a control method of a multi-phase switching regulator. The multi-phase switching regulator includes: at least two power stages, switching power transistors in the power stages to convert an input voltage to an output voltage according to pulse width modulation (PWM) signals generated by corresponding PWM controllers respectively; and a current balance circuit, generating a current balance signal according to the current of the corresponding power stage and a phase adjustment signal to averagely distribute current over the active power stages. In the present invention, the gain of the current balance circuit is adjustable, to avoid or reduce output voltage overshoot and undershoot when the phase number changes, while the current balance function is still achieved in normal operation.

摘要翻译： 本发明公开了一种多相开关调节器，多相开关调节器的驱动电路以及多相开关调节器的控制方法。 多相开关稳压器包括：至少两个功率级，功率级中的开关功率晶体管，分别根据相应PWM控制器产生的脉冲宽度调制（PWM）信号将输入电压转换成输出电压; 以及电流平衡电路，根据相应功率级的电流产生电流平衡信号和相位调整信号，以平均分配有功功率级上的电流。 在本发明中，电流平衡电路的增益是可调节的，以避免或减少相位数变化时的输出电压过冲和下冲，同时在正常操作中仍然实现电流平衡功能。

公开(公告)号：US07450771B2

公开(公告)日：2008-11-11

申请号：US10888733

申请日：2004-07-09

申请人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

发明人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

IPC分类号： G06K9/36

CPC分类号： H04N19/36 ,  H04N19/132 ,  H04N19/147 ,  H04N19/64 ,  H04N19/645

摘要： A method of optimizing a compression of a still image in JPEG 2000 format, which includes the steps of: (a) dividing an image into a predetermined numbers of tiles each having a predetermined numbers of tile pixels; (b) decomposing each of the tiles into a predetermined number of subbands by Discrete Wavelet Transform (DWT); (c) partitioning each of the subbands into a predetermined number of code-blocks which are arranged into a plurality of bit-planes respectively; (d) minimizing a total rate with a given predetermined total distortion of image so as to pre-determine an optimal truncation point for each of the code-blocks; (e) truncating a predetermined part of the DWT coefficients for each of the code-blocks so as to reduce computational resource; and (f) encoding each of the code-blocks by embedded block-coding to form an embedded code-stream having a plurality of code passes.

摘要翻译： 一种以JPEG 2000格式优化静止图像的压缩的方法，其特征在于包括以下步骤：（a）将图像划分成预定数量的瓦片，每个瓦片具有预定数量的瓦片像素; （b）通过离散小波变换（DWT）将每个瓦片分解成预定数量的子带; （c）将每个子带划分成分别布置成多个位平面的预定数量的码块; （d）以给定的预定的图像总失真最小化总速率，以便预先确定每个码块的最佳截断点; （e）截断每个码块的DWT系数的预定部分，以减少计算资源; 和（f）通过嵌入的块编码对每个代码块进行编码，以形成具有多个代码遍的嵌入代码流。

公开(公告)号：US20080131012A1

公开(公告)日：2008-06-05

申请号：US11979092

申请日：2007-10-31

申请人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

发明人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

IPC分类号： G06K9/36

CPC分类号： H04N19/63 ,  H04N19/13 ,  H04N19/647

摘要： The present invention provides a high-speed, memory efficient parallel coding technique for embedded block coding with optimized truncation (EBCOT) used in still image compression. Attributing to parallel processing method and structure, it processes a discrete wavelet transform (DWT) coefficient at a clock cycle without any state variable stored. Therefore, the need of state variable memory can be avoid and the external memory bandwidth can be reduced. With the same cost of chip-area and lower power consumption, the processing rate of this invention is several times higher than conventional schemes. Furthermore, the present invention processes 50 M coefficients per second at 100 MHz and can encode lossless HDTV 720p resolution pictures at 30 fps in real time.

摘要翻译： 本发明提供了一种用于静态图像压缩中使用的具有优化截断（EBCOT）的嵌入式块编码的高速，高效率的存储器并行编码技术。 归因于并行处理方法和结构，它处理时钟周期的离散小波变换（DWT）系数，而不存储任何状态变量。 因此，可以避免需要状态变量存储器，并且可以减少外部存储器带宽。 以相同的芯片面积和低功耗的成本，本发明的处理速度是传统方案的几倍。 此外，本发明以100MHz处理每秒50M系数，并且可以实时地以30fps编码无损HDTV 720p分辨率图像。

公开(公告)号：US20080111959A1

公开(公告)日：2008-05-15

申请号：US11907361

申请日：2007-10-11

申请人： Ta-Jung Su ,  Yu-Wei Chang ,  Ming-Sheng Chiang

发明人： Ta-Jung Su ,  Yu-Wei Chang ,  Ming-Sheng Chiang

IPC分类号： H01L21/02 ,  G02F1/1335

CPC分类号： G02F1/133553 ,  G02F1/1362 ,  G02F2202/42

摘要： The structure of a trans-reflective liquid crystal display panel includes stacks in longitudinally and two areas in transversely, which are reflective area and transmissive area. A thin-film-transistor layer and a dielectric layer are formed on a substrate in sequential. For the transmissive area, a transparent conductive film, such as a pixel electrode, is formed. For the reflective area, a reflective film with multi-layer is formed on the dielectric layer and then the thin-film-transistor layer. After assembling, the trans-reflective liquid crystal display is complete. The materials of the reflective film with multi-layer and the dielectric layer are similar to have greater adhesion. Each layer of the reflective film with multi-layer includes two sublayers, the first reflective sublayer and the second reflective sublayer, which have the different refractive indexes. By modifying the temperature, pressure, gas flow and power of emitting in manufacturing process can make the refractive indexes of both layers.

摘要翻译： 反射型液晶显示面板的结构纵向包括两个横向的区域，它们是反射区域和透射区域。 依次在基板上形成薄膜晶体管层和电介质层。 对于透射区域，形成诸如像素电极的透明导电膜。 对于反射区域，在介电层上形成多层反射膜，然后形成薄膜晶体管层。 组装后，反射式液晶显示屏完成。 具有多层和介电层的反射膜的材料类似于具有更大的附着力。 具有多层的反射膜的每个层包括具有不同折射率的两个子层，第一反射子层和第二反射子层。 通过改变制造过程中的温度，压力，气体流量和发射功率可以使两层的折射率。

公开(公告)号：US20060008162A1

公开(公告)日：2006-01-12

申请号：US10888733

申请日：2004-07-09

申请人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

发明人： Liang-Gee Chen ,  Hung-Chi Fang ,  Yu-Wei Chang

IPC分类号： G06K9/36

CPC分类号： H04N19/36 ,  H04N19/132 ,  H04N19/147 ,  H04N19/64 ,  H04N19/645

摘要： A method of optimizing a compression of a still image in JPEG 2000 format, which includes the steps of: (a) dividing an image into a predetermined numbers of tiles each having a predetermined numbers of tile pixels; (b) decomposing each of the tiles into a predetermined number of subbands by Discrete Wavelet Transform (DWT); (c) partitioning each of the subbands into a predetermined number of code-blocks which are arranged into a plurality of bit-planes respectively; (d) minimizing a total rate with a given predetermined total distortion of image so as to pre-determine an optimal truncation point for each of the code-blocks; (e) truncating a predetermined part of the DWT coefficients for each of the code-blocks so as to reduce computational resource; and (f) encoding each of the code-blocks by embedded block-coding to form an embedded code-stream having a plurality of code passes.

摘要翻译： 一种以JPEG 2000格式优化静止图像的压缩的方法，其特征在于包括以下步骤：（a）将图像划分成预定数量的瓦片，每个瓦片具有预定数量的瓦片像素; （b）通过离散小波变换（DWT）将每个瓦片分解成预定数量的子带; （c）将每个子带划分成分别布置成多个位平面的预定数量的码块; （d）以给定的预定的图像总失真最小化总速率，以便预先确定每个码块的最佳截断点; （e）截断每个码块的DWT系数的预定部分，以减少计算资源; 和（f）通过嵌入的块编码对每个代码块进行编码，以形成具有多个代码遍的嵌入代码流。

公开(公告)号：US08411747B2

公开(公告)日：2013-04-02

申请号：US12482455

申请日：2009-06-11

申请人： Yi-Chang Chen ,  Chao-Tsung Huang ,  Yu-Wei Chang

发明人： Yi-Chang Chen ,  Chao-Tsung Huang ,  Yu-Wei Chang

IPC分类号： H04N7/12

CPC分类号： H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

摘要： An intra prediction mode selecting method is disclosed. First, a compress profile and a frame resolution of a frame data are received. Next, a plurality of corresponding prediction modes are selected according to the compress profile and the frame resolution, and the selected prediction modes are scheduled for sequentially calculating a plurality of corresponding cost functions. Finally, the cost functions are compared to select one of the prediction modes to serve as a prediction mode of the frame data.

摘要翻译： 公开了一种帧内预测模式选择方法。 首先，接收压缩简档和帧数据的帧分辨率。 接下来，根据压缩曲线和帧分辨率选择多个相应的预测模式，并且调度所选择的预测模式以顺序地计算多个对应的成本函数。 最后，比较成本函数，选择预测模式之一作为帧数据的预测模式。