Wuhan China Star Optoelectronics Technology Co., Ltd.

Crrc Yangtze Co., Ltd.

Qi Wei

Guowei Zha

Fancheng Liu

Hongqing Cui

Liangcai Lin

Chuqiang Tang

Yueming Hu

Hong Cui

Song Wang

Biaowen Xiang

Rui Yan

Chuanping Zheng

Xuebin Zhu

The disclosure provides a backlight module. Light reflected back and forth inside a display device is fully utilized, and luminescent efficiency of a luminescent device inside the display device is improved. In addition, the backlight module has a simple structure, which can solve technical problems of occurrence of strip black lines and uneven brightness that result from an application of a conventional backlight module in a large-scale display device by simply adding a refractive layer or a reflective layer.

Backlight module

A liquid crystal display module includes a display panel and a backlight module. The display panel includes a first substrate and a second substrate disposed opposite to each other, a liquid crystal layer, a first polarizer, and a plurality of fingerprint recognition units. The first substrate includes filter parts and light shielding parts. The first polarizer uses a patterned polarizer. The display panel can realize fingerprint identification while displaying. The fingerprint recognition unit is provided with an analyzer unit to avoid crosstalk.

Liquid crystal display module

Disclosed is a railway hopper car comprising a car body (), a top cover (), a bogie (), a braking device (), a coupler buffer device (), and a bottom door () and a bottom door opening and closing mechanism () mounted at a discharge port at the bottom of a chassis. The railway hopper car further comprises a longitudinal saddle () disposed in the center of the car body () in the length direction thereof and arranged along the longitudinal direction of the car body (). By providing the longitudinal saddle (), the sequential requirement to close the left bottom door () and the right bottom door () is eliminated, thereby simplifying the structure of the linkage bottom door opening and closing mechanism and reducing manufacture and maintenance costs thereof.

Railroad hopper car

The invention provides a luminance adjustment method and apparatus for RGBW LCD, which uses first and second EOTFs to generate a grayscale luminance lookup table for RGBW LCD, and makes the grayscale-luminance relation in lookup table corresponding to the first EOTF within the grayscale interval between 0 and grayscale threshold; the grayscale-luminance relation in lookup table corresponding to the second EOTF within the grayscale interval between grayscale threshold and 255; the curve slope of the second EOTF greater than the curve slope of the first EOTF within the interval between second luminance threshold and maximum luminance value. By adopting different EOTFs for low and high grayscale intervals, the method considers the poor dark state characteristics of LCD and characteristics of RGBW LCD having higher maximum luminance, and improves the display capability of RGBW LCD in details of high grayscale images.

Luminance adjustment method for RGBW LCD and apparatus thereof

Growing community of inventors

Wuhan, China

Qi Wei