公开(公告)号：US10725486B2

公开(公告)日：2020-07-28

申请号：US16052654

申请日：2018-08-02

Applicant: Novatek Microelectronics Corp.

Inventor： Yong-Ren Fang ,  Shen-Iuan Liu ,  Ju-Lin Huang ,  Tzu-Chien Tzeng ,  Keko-Chun Liang ,  Yu-Hsiang Wang ,  Che-Wei Yeh

IPC: G05F1/46 ,  H03K5/24 ,  G01R19/165

Abstract: A reference voltage generator includes a detecting voltage provider, a comparator, and a core circuit. The detecting voltage provider provides a detecting voltage with a first voltage level corresponding to a voltage coefficient. The comparator compares the first voltage level of the detecting voltage with a plurality of sampled amplitudes of an input signal to respectively generate a plurality of comparison results. The core circuit is used to: collect a plurality of first comparison results associated with a current received bit of a preset value from the comparison results; take the voltage coefficient as a first boundary voltage coefficient in response to the first comparison results satisfying a first condition; take the voltage coefficient as a second boundary voltage coefficient in response to the first comparison results satisfying a second condition. The reference circuit generates a reference voltage according to the first and second boundary voltage coefficients.

公开(公告)号：US20200211163A1

公开(公告)日：2020-07-02

申请号：US16234566

申请日：2018-12-28

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Yi Chien

IPC: G06T5/00 ,  G09G5/02

Abstract: The invention provides an image compensation method suitable to a display. First, an image processing circuit obtains pixel data related to a current pixel, a first and a second adjacent pixels from an image frame. The first and the second adjacent pixels are respectively located at two opposite sides of the current pixel. Then, the image processing circuit determines whether a color block edge exists between the current pixel, the first adjacent pixel and the second adjacent pixel according to the pixel data related to the current pixel, the first adjacent pixel and the second adjacent pixel. The image processing circuit performs first color edge compensation on the pixel data related to the current pixel when determining that the color block edge exists between the current pixel and the first adjacent pixel and no color block edge exists between the current pixel and the second adjacent pixel. An image processing circuit is further provided.

公开(公告)号：US20200184870A1

公开(公告)日：2020-06-11

申请号：US16445227

申请日：2019-06-19

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Hsiang Fang ,  Jhih-Siou Cheng ,  Wen-Ching Huang

IPC: G09G3/20

Abstract: A source driver is provided. The source driver includes an integrated circuit chip, a sensitive circuit and at least one bump. The sensitive circuit is disposed in the integrated circuit chip. The sensitive circuit includes at least one capacitor. The at least one bump is disposed in the integrated circuit chip, and the at least one bump is adjacent to the sensitive circuit.

公开(公告)号：US10656751B2

公开(公告)日：2020-05-19

申请号：US15975810

申请日：2018-05-10

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Feng-Lin Chan ,  Hung-Kai Chen ,  Yuan-Fu Hsueh ,  Chun-Yuan Pai

IPC: G06F3/041 ,  G06F3/044

Abstract: The driving apparatus for driving a touch display panel includes a first voltage generating circuit configured to generate a common reference voltage, a second voltage generating circuit configured to generate a touch driving signal, and a control circuit configured to generate a switching signal. The switching signal is at the first voltage level during display periods for providing the common reference voltage to the touch display panel. The switching signal is at the second voltage level during touch periods for providing the touch driving signal to the touch display panel. A first touch display period includes a first display period a first touch period adjacent to the first display period. A second touch display period includes a second display period and a second touch period adjacent to the second display period. The first touch display period and the second touch display period are different in time length.

公开(公告)号：US20200152104A1

公开(公告)日：2020-05-14

申请号：US16745315

申请日：2020-01-16

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Chieh Lin ,  Shang-I Liu ,  Hua-Gang Chang

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.

公开(公告)号：US10595043B2

公开(公告)日：2020-03-17

申请号：US13655430

申请日：2012-10-18

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Wei Chang

IPC: H04N13/00 ,  H04N19/597

Abstract: An encoding method and an encoding device for 3D video are provided. The method includes the following. Pixel data of a first macro block in a first frame to be encoded is loaded, wherein the first frame belongs to a first view angle. Pixel data of a search window in a reference frame is loaded. A first motion estimation is executed according to the pixel data of the search window and the first macro block. Pixel data of a second macro block in a second frame to be encoded is loaded, wherein the second frame belongs to a second view angle different from the first view angle. A second motion estimation is executed according to the pixel data of the search window and the second macro block, thereby sharing the pixel data of the search window with the first motion estimation. Accordingly, the demand for a memory bandwidth is decreased.

公开(公告)号：US10558094B2

公开(公告)日：2020-02-11

申请号：US16104950

申请日：2018-08-19

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shang-Yu Su ,  Hsueh-Yen Yang ,  Feng-Ting Pai

IPC: G02F1/1343 ,  G09G3/36 ,  G02F1/1335

Abstract: A display device includes a plurality of sub-pixel groups, wherein each of the plurality sub-pixel groups comprises eight sub-pixels disposed in a row direction or in a column direction and the eight sub-pixels comprise two red sub-pixels; two blue sub-pixels; two green sub-pixels; and two sub-pixels of a predetermined color, wherein in each of the plurality of sub-pixel groups, a distance between the red sub-pixels or between the blue sub-pixels is less than a distance between the green sub-pixels or between the sub-pixels of the predetermined color, and the sub-pixels of the predetermined color have a luminance higher than a luminance of the red sub-pixels and the blue sub-pixels.

公开(公告)号：US20200035160A1

公开(公告)日：2020-01-30

申请号：US16045757

申请日：2018-07-26

Applicant: Novatek Microelectronics Corp.

Inventor： Ko-Fang Chen ,  Huang-Chin Tang

IPC: G09G3/3258

Abstract: A power management device including a power management circuit is provided. The power management circuit is configured to output a first power signal and a second power signal to a pixel circuit of a display panel. The pixel circuit includes an organic light-emitting diode. The organic light-emitting diode includes an anode terminal and a cathode terminal. The anode terminal is coupled to the first power signal. The cathode terminal is coupled to the second power signal. The second power signal is an alternating-current voltage. In addition, a pixel circuit of a display panel, and a power management method for the pixel circuit of the display panel are also provided.

公开(公告)号：US20190387239A1

公开(公告)日：2019-12-19

申请号：US16012748

申请日：2018-06-19

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Min Wang

IPC: H04N19/426 ,  H04N19/117 ,  H04N19/52 ,  H04N19/124 ,  H04N19/61 ,  H04N19/91

Abstract: A video encoding apparatus and an operating method thereof are provided. The video encoding apparatus includes an encoding circuit, a reconstructed frame generating circuit, a deblocking filter and a determination circuit. The encoding circuit generates encoded data according to a residual frame and generates a reconstructed residual frame. The reconstructed frame generating circuit generates a first reconstructed frame according to the reconstructed residual frame and a predicted frame. The deblocking filter generates a second reconstructed frame by eliminating discontinuities in reconstructed blocks of the first reconstructed frame. The current reconstructed block is not output to the memory when a current reconstructed block is identical to a co-located reference block of a reference frame stored in the memory. The current reconstructed block is output to the memory when the current reconstructed block is different from the co-located reference block in the reference frame.

公开(公告)号：US10482820B2

公开(公告)日：2019-11-19

申请号：US15187809

申请日：2016-06-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Chieh Lin ,  Hua-Gang Chang ,  Hsueh-Yen Yang ,  Shang-Yu Su ,  Feng-Ting Pai

IPC: G09G3/3258

Abstract: A method of compensating luminance of an organic light-emitting diode (OLED) operated with a transistor in a pixel cell of a display panel includes measuring a first parameter of the transistor and a parameter of the OLED, and generating a lookup table accordingly; converting original display data to target display data according to the lookup table; outputting the target display data to the pixel cell; and compensating a second parameter of the transistor when the target display data is received by the pixel cell.