公开(公告)号：US10789909B2

公开(公告)日：2020-09-29

申请号：US16299169

申请日：2019-03-12

Applicant: QISDA CORPORATION

Inventor： Chung-Ting Yen ,  Feng-Lin Chen

IPC: G09G5/04

Abstract: A picture adjusting method includes steps of measuring a plurality of first original parameters in a first picture and measuring a plurality of second original parameters in a second picture for a plurality of color patterns; calculating a first gain factor according to the first original parameters and the second original parameters of at least one of the color patterns except a black pattern; subtracting a product of the first original parameters of the black pattern and the first gain factor from the second original parameters of the black pattern to obtain a plurality of first offset values; adding the first offset values to the first original parameters of each color pattern to obtain a plurality of first updated parameters in the first picture; and multiplying the first updated parameters by a second gain factor to obtain a plurality of first adjusted parameters in the first picture.

公开(公告)号：US11049435B2

公开(公告)日：2021-06-29

申请号：US16776552

申请日：2020-01-30

Applicant: Qisda Corporation

Inventor： Tse-Wei Fan ,  Feng-Lin Chen

IPC: G09G1/00 ,  G09G3/20 ,  H04N5/64

Abstract: An optical detecting device includes a receiving box and a telescopic arm. The receiving box includes an electrical connection port and a first conductive portion electrically connected to the electrical connection port. The telescopic arm is slidably disposed in the receiving box and includes an optical sensor and a second conductive portion electrically connected to the optical sensor. When the telescopic arm and the receiving box are in different sensing positions, the first conductive portion is electrically connected to the second conductive portion.

公开(公告)号：US12241785B2

公开(公告)日：2025-03-04

申请号：US18317935

申请日：2023-05-16

Applicant: Qisda Corporation

Inventor： Jia Hsing Li ,  Chi Yao Hsu ,  Feng-Lin Chen

IPC: G01J3/50 ,  G09G3/20

Abstract: A color correction system and a colorimeter positioning method therefore are provided. A first color block is displayed in a first display area of a display. During the period of displaying the first color block, a first sensing value is acquired for the first color block through a sensor of a colorimeter. The first sensing value is compared with a first reference value to determine whether the first sensing value meets the first specific condition. In response to the first sensing value meeting the first specific condition, a second color block is displayed in the first display area of the display. During the period of displaying the second color block, a second sensing value is acquired for the second color block through the sensor. The second sensing value is compared with a second reference value to determine whether the second sensing value meets the second specific condition.

公开(公告)号：US20240094058A1

公开(公告)日：2024-03-21

申请号：US18317935

申请日：2023-05-16

Applicant: Qisda Corporation

Inventor： Jia Hsing Li ,  Chi Yao Hsu ,  Feng-Lin Chen

IPC: G01J3/50 ,  G09G3/20

CPC classification number: G01J3/506 ,  G09G3/2003 ,  G09G2320/0666

Abstract: A color correction system and a colorimeter positioning method therefore are provided. A first color block is displayed in a first display area of a display. During the period of displaying the first color block, a first sensing value is acquired for the first color block through a sensor of a colorimeter. The first sensing value is compared with a first reference value to determine whether the first sensing value meets the first specific condition. In response to the first sensing value meeting the first specific condition, a second color block is displayed in the first display area of the display. During the period of displaying the second color block, a second sensing value is acquired for the second color block through the sensor. The second sensing value is compared with a second reference value to determine whether the second sensing value meets the second specific condition.

公开(公告)号：US12236903B2

公开(公告)日：2025-02-25

申请号：US18305395

申请日：2023-04-24

Applicant: Qisda Corporation

Inventor： Chun-Chang Wu ,  Yi-Zong Jhan ,  Jen-Hao Liao ,  Tse-Wei Fan ,  Wei-Yu Chen ,  Fu-Tsu Yen ,  Feng-Lin Chen

IPC: G09G3/34

Abstract: A display device and a backlight control method of the display device are provided. When a duration of an image occlusion period is shorter than a preset duration, a backlight driving circuit is controlled to respectively provide a first pulse current and a second pulse current in a first light emitting period and a second light emitting period in each frame period, so as to drive a backlight unit to provide a first backlight and a second backlight. Here, the first pulse current is greater than the second pulse current.

公开(公告)号：US20240029665A1

公开(公告)日：2024-01-25

申请号：US18305395

申请日：2023-04-24

Applicant: Qisda Corporation

Inventor： Chun-Chang Wu ,  Yi-Zong Jhan ,  Jen-Hao Liao ,  Tse-Wei Fan ,  Wei-Yu Chen ,  Fu-Tsu Yen ,  Feng-Lin Chen

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0261

Abstract: A display device and a backlight control method of the display device are provided. When a duration of an image occlusion period is shorter than a preset duration, a backlight driving circuit is controlled to respectively provide a first pulse current and a second pulse current in a first light emitting period and a second light emitting period in each frame period, so as to drive a backlight unit to provide a first backlight and a second backlight. Here, the first pulse current is greater than the second pulse current.

公开(公告)号：US20210264874A1

公开(公告)日：2021-08-26

申请号：US17155112

申请日：2021-01-22

Applicant: QISDA CORPORATION

Inventor： Feng-Lin Chen ,  Chun-Chang Wu

IPC: G09G5/02

Abstract: A display device includes a storage unit, a display unit and a processing unit. The storage unit stores an original coordinate of a reference point and a color parameter under a color space, wherein the color space has been processed by color calibration in advance. The display unit displays an adjusting interface. The adjusting interface is configured to shift the reference point to generate a shift coordinate of the reference point. The processing unit is coupled to the storage unit and the display unit. The processing unit obtains a color transformation matrix according to the original coordinate of the reference point, the shift coordinate of the reference point and the color parameter. The processing unit adjusts three output percentages of RGB by the color transformation matrix.