Shenzhen China Star Optoelectronics Technology Co., Ltd.

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Tcl China Star Optoelectronics Technology Co., Ltd.

Huizhou China Star Optoelectronics Technology Co., Ltd.

Huizhou China Star Optoelectronics Display Co., Ltd.

Bo Hai

Chih-Tsung Kang

Chihtsung Kang

Yu-chun Hsiao

Zanjia Su

Jianyu Chang

Sheng-Jer Chang Chien

Yung-jui Lee

The present application provides a grayscale calibrating method for a display panel and a display device. The grayscale calibrating method for a display panel includes obtaining a screen image to be displayed of the display panel, and determining whether the screen image to be displayed exists in an abnormal display region; when the screen image to be displayed exits in the abnormal display region, increasing the grayscale of each of the first sub-pixels located in the first display region by changing a white balance component to improve the display effect of the abnormal display region.

Grayscale calibrating method for display panel and display device

A polarizer and a display device are provided. In the polarizer, on a basis of using an optical compensation layer to compensate a birefringence of liquid crystal molecules in a liquid crystal layer, a liquid crystal compensation layer is configured to compensate the birefringence of the liquid crystal molecules in the liquid crystal layer. The liquid crystal compensation layer adjusts a compensation value through a refractive index difference and a thickness of the liquid crystal molecules, so an adjustment range is large and a restriction is small, which can be matched with a high phase difference of the display device, and further improves side-view light leakage in a dark state of the liquid crystal display.

Polarizer and display device

An optical property detecting method of a liquid crystal display panel is provided, and includes: measuring a spectrum of a first backlight panel and a spectrum of the a liquid crystal module; calculating a transmission spectrum of a target liquid crystal display panel; obtaining a spectrum of a second backlight panel; calculating and obtaining a tristimulus value of a second liquid crystal module; obtaining a plurality of optical parameters corresponding to the target liquid crystal display panel according to the tristimulus value, so as to detect an optical property of the target liquid crystal display panel.

Optical property detecting method of liquid crystal display panel

A display device is provided. In the present application, a liquid crystal compensation layer is provided on both first polarizer and second polarizer, and an improvement of compensation value is not realized by stretching the liquid crystal compensation layer but by adjusting the refractive index difference and thickness of the liquid crystal molecules, so the adjustment range is large, the restriction is small, and it can be matched with the high phase difference of the liquid crystal display panel. Therefore, the dark state side-view light leakage of the liquid crystal display panel and the contrast ratio of the liquid crystal display panel are improved, and the image quality is enhanced.

Display device having liquid crystal compensation layer

The present application discloses a chromaticity adjustment method and an adjustment device of a display panel. The chromaticity adjustment method of the display panel includes: determining an initial driving voltage corresponding to a highest gray scale of the display panel; acquiring an initial white picture chromaticity of the display panel based on the initial driving voltage; determining whether the initial white picture chromaticity deviates from a target white picture chromaticity; if the initial white picture chromaticity deviates from the target white picture chromaticity, adjusting the initial driving voltage to adjust the initial white picture chromaticity.

Chromaticity adjustment method and device of display panel

The present disclosure provides a setting method of a display panel and the display panel, the method includes: acquiring a first chromaticity information of a first gray scale and a second chromaticity information of a second gray scale; acquiring a first difference value between the first chromaticity information and the second chromaticity information; and adjusting gray scale voltages of the first gray scale and/or the second gray scale when the first difference value is greater than a preset difference threshold, and a second difference value between the first chromaticity information and the second chromaticity information after adjustment is less than the first difference value.

Setting method of display panel and display panel

A method of adjusting a display screen, an adjusting device for a display screen, a display device, and a storage medium are provided. The method includes obtaining brightness information in an abnormal brightness area in response to detecting that the abnormal brightness area is in a current display screen, obtaining a corresponding transmittance cut-off wavelength sequence in an abnormal color area in the abnormal brightness area in response to determining that the abnormal color in the abnormal brightness area is blue, and eliminating the abnormal color area in the display screen by absorbing wavelength energy whose wavelength is less than a predetermined wavelength threshold in the transmittance cut-off wavelength sequence.

Method of adjusting display screen, adjusting device for display screen, display device, and storage medium

A light source module, liquid crystal display device and display apparatus. The light source module comprises a light guide plate and a light source disposed on the light guide plate side, and a plurality of micro structures are disposed on a light guide surface of the light guide plate. The light source module can provide a reflective liquid crystal display panel with an area light source similar to ambient light to improve light exiting brightness of the reflective liquid crystal display panel such that reflective liquid crystal display panel also has a better display effect in a dark environment and under a condition without ambient light.

Light source module, liquid crystal display device, and display apparatus

A light source module, a liquid crystal display device, and a display apparatus are provided. The light source module disposes a plurality of micro structures disposed at intervals on a light guide surface of a light guide plate and disposes a sum of areas of the micro structures on an unit area on the light guide surface gradually increasing from a light incident side to a light exiting side, which can improve uniformity of light exiting brightness of each region of the light guide plate.

Light source module, liquid crystal display device, and a display apparatus

A reflection rate detection device and reflection rate detection method for a liquid crystal panel are provided by embodiments of the present application. A sphere of the liquid crystal panel is a hollow sphere, and an inner wall of the sphere is uniformly sprayed with diffuse reflection materials. The sphere is provided with a window hole, and the window hole corresponds to the liquid crystal panel. The emitting light source is disposed on the sphere, the emitting light source is configured to emit light, and emitted light enters the liquid crystal panel. The receiver is configured to receive reflection energy of the liquid crystal panel. A reflection rate of a large-area liquid crystal panel can be detected by the present application.

Reflection rate detection device and reflection rate detection method for liquid crystal panel

The present disclosure provides a display device and an electronic equipment. The display device includes: a display module, the display module having a light emitting side; a phase retarder, the phase retarder is disposed on the light emitting side of the display module; wherein a range of a compensation value of the phase retarder is [λ/16, λ/4), (λ/4, 7λ/16], [9λ/16, 3λ/4) or (3λ/4, 15λ/16], where λ is a wavelength of light emitted by the display module.

Display device and electronic equipment

The present disclosure relates to a method for calculating a chromaticity value of a white screen of a display device. The method for calculating the chromaticity value of the white screen of the display device of the present disclosure can calculate a corresponding chromaticity value of the white screen, when aperture ratios of a first sub-pixel, a second sub-pixel, and a third sub-pixel of the display device are adjusted. Then, the aperture ratios of the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display device can be adjusted, so as to meet user demand for chromaticity of the white screen, ameliorate a color cast problem of current display devices, and improve a display effect of the display device.

Method for calculating a chromaticity value of a white screen of a display device

A method for adjusting dark-state voltage applied on a liquid crystal panel, a dark-state voltage adjusting device and a storage medium are proposed. The method includes: obtaining a plurality of initial dark-state voltage differences; obtaining a contrast ratio corresponding to each of the initial dark-state voltage differences based on the plurality of initial dark-state voltage differences; obtaining a reference dark-state voltage difference in the plurality of initial dark-state voltage differences, and obtaining a contrast ratio change corresponding to each of the initial dark-state voltage differences based on the reference dark-state voltage difference; and determining a dark-state voltage difference of the LCD panel based on the contrast ratio change corresponding to each of the initial dark-state voltage differences.

Method for adjusting dark-state voltage applied on liquid crystal display panel, device, and storage medium

A method is provided for adjusting a viewing angle for a dark state of a display panel, and the method includes steps of: obtaining a first brightness change of a to-be-tested panel at a first viewing angle under a condition of a first voltage difference; obtaining a second brightness change of the to-be-tested panel at a second viewing angle under the condition of the first voltage difference; obtaining a ratio of the second brightness change to the first brightness change; and comparing the ratio of the second brightness change to the first brightness change with a first threshold to determine whether the first voltage difference is a selection voltage of the display panel.

Method, device, and electronic device for adjusting viewing angle for dark state of display panel

The disclosure provides a white balance adjusting method, device, and electronic equipment. The method includes obtaining a first image parameter of a panel under test; obtaining a white balance compensation factor of the panel under test; using a gamma value of the panel under test as a first threshold value to obtain a first target luminance of the panel under test; obtaining a second target luminance of the panel under test; and obtaining grayscale voltages corresponding to sub-pixels of the panel under test based on the second target luminance of the panel under test.

Growing community of inventors

Guangdong, China

Bo Hai