Shenzhen China Star Optoelectronics Technology Co., Ltd.

Other

Chao Ning

Yong Fan

Yongyuan Qiu

Che-chang Hu

Kuang-yao Chang

Jinjun Wu

Sheng-Jer Chang Chien

Dehua Li

Guofu Tang

Kuangyao Chang

Chechang Hu

Qian Cao

Li-Yi Chen

A method and a system for enhancing colors of an image are disclosed. The method comprises: converting the color components in an RGB color space of each pixel in an image into a hue component, a saturation component, and a value component in an HSV color space of the pixel; stretching the saturation component when it is greater than 0 and smaller than 1; converting the hue component, the stretched saturation component, and the value component into an enhanced red component, an enhanced green component, and an enhanced blue component in the RGB color space. Through the method, the phenomenon of color shift can be prevented, thus enabling the image to be brighter and vivider. Hence, the viewers' visual experience can be improved. The method can relieve the problems of color shift and picture washout.

Method for enhancing colors of image and system thereof

A direct-type backlight module and a manufacturing method thereof are provided. The direct-type backlight module includes: a rear plate and a backlight source installed therein. The backlight source includes a LED light bar including LEDs. The LEDs have a phosphor layer disposed thereon. The phosphor layer and the LEDs have a colloid material layer sandwiched therebetween for thermal isolation. The present invention disposes the colloid material layer so as to avoid heat generated by the LEDs to be directly transferred to the phosphor layer to cause efficiency reduction, meanwhile there is no need of a large amount of phosphor layer to fabricate a large-sized film sheet and thus the material usage of the phosphor layer is reduced. The present invention can effectively use the phosphor layer to improve color saturation of display while ensuring the efficient use of LED brightness and the life span by the colloid material layer.

Direct-type backlight module and manufacturing method thereof

The present invention discloses an optical testing device includes a base, a holder, and a number of illuminating modules. The base defines a sliding groove extending along a first direction in a top surface thereof. The holder slides along a second direction on the top surface of the base. The interval regulator is connected to the holder. The illuminating modules are slidably received in the sliding groove. Each of the illuminating modules comprises a circuit board and a single lighting element set on the circuit board. The interval regulator drives the holder to slide along a second direction so that a distance between the holder and the illuminating modules is regulated. The first direction is not parallel to the second direction.

Optical testing device

A double-sided LCD includes a first liquid crystal panel, a second liquid crystal panel arranged opposite to the first liquid crystal panel, and a backlight module arranged therebetween. The backlight module includes: a middle frame being arranged and assembled between the first liquid crystal panel and the second liquid crystal panel; and a light emitting assembly comprises a first lamp board facing toward the first liquid crystal panel, a second lamp board facing toward the second liquid crystal panel, and at least two middle plate being arranged between the first lamp board1 and the second lamp board, a gap is formed between two adjacent middle plates, and the first lamp board and the second lamp board respectively comprises a plurality of light sources. In addition, a backlight module for double-sided LCDs is also disclosed.

Double-sides liquid crystal devices and backlight modules

A light guiding system includes an ambient light gathering system, multiple light guiding devices and a wedge light guiding bar. The ambient light gathering system facing ambient light is used for absorbing the ambient light. Each light guiding device absorbs the absorbed light. The wedge light guiding bar has a light-out surface and a light-in surface coupled to the light-out surface. The light-in surface is a wide surface coupled to an inclined surface. The light-out surface is opposite to the inclined surface and next to a light-in side of a light guide plate. The wedge light guiding bar for use in the light guiding system, an edge-lighting backlight module and an LCD device can reduce cost of material and weight. Also, the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised.

Light guiding system, edge-lighting backlight module and LCD device

A white balance adjustment method for a display, the method including acquiring spectrum stimulus values of q gray scales of red, green, blue and white of a display panel of a tested display; determining spectrum stimulus value brightness of white and green, and performing interpolation segmenting on brightness of white and green; normalizing brightness of white and green; acquiring an ideal brightness normalized value of white and an ideal brightness normalized value of green; comparing the normalized value for brightness white and the ideal brightness normalized value corresponding to the white and the normalized value for brightness of green and the ideal brightness normalized value corresponding to the green respectively, based on the closest principle, and determining optimal gray scales of white and green; determining a target chromaticity, and changing the gray scales of red and blue, acquiring a RGBW combination which is closest to the target chromaticity.

White balance adjustment method for a display device

The present invention disclosed a backlight module comprising a light collection system, a light guide plate and a plurality of optical fibers, wherein all light incident ends of the plurality of optical fibers are connected to the light collection system for receiving sunlight; the backlight module further includes an optical fiber connector; the plurality of optical fibers are arranged in parallel on the surface of the light guide plate, with all their light emitting ends flush with the light incident end of the light guide plate; the optical fiber connector abuts against the light emitting end of the plurality of optical fibers and the light incident end of the light guide plate, respectively, used for guiding the sunlight emitting from the light emitting end of the plurality of optical fibers to enter the light guide plate from the light incident end of the light guide plate.

Backlight module

An LCD having a backlight module is proposed. The backlight module includes an ambient light collector for collecting ambient light; a back plate; a diffuser plate on the back plate; a plurality of optical fibers straightly fixed between the diffuser plate and the back plate and coupled to the ambient light collector. Microstructure is formed on the surface of the optical fibers straightly fixed between the diffuser plate and the back plate, and the microstructure makes light from the optical fibers evenly being emitted. The backlight module utilizes microstructure formed on a surface of optical fibers for evenly distributing light from the surface of the optical fibers. In hence, it effectively guides ambient light into the backlight module via the optical fibers and ensures at the same time that the light is evenly distributed to the backlight module.

LCD and backlight module thereof

A sunlight collecting device provided in the present invention includes a lens substrate, a plurality of Fresnel lens, a connector substrate, a plurality of optical fiber connectors, and a light-tracking substrate. The lens substrate has a plurality of circular openings. The Fresnel lenses correspond to the circular opening and are disposed on the lens substrate. The connector substrate is disposed parallel to the lens substrate and away from the lens substrate with a focal length. The optical fiber connectors are adjustably disposed on the connector substrate. The light-tracking substrate is disposed between the lens substrate and the connector substrate for simultaneously rotating the lens substrate and the connector substrate such that the Fresnel lenses are directly opposite to the sunlight. An LCD using the sunlight as a backlight source is further provided in the present invention.

Sunlight collecting device and liquid crystal display using sunlight as a backlight source

The present invention provide a sunlight collection device, it comprises a concentrator array composed by a plurality of concentrators and a light sensor electrically connected to the controller, the concentrator comprises a collecting cup and a collecting lens fixed to the collecting cup, a optical fiber runs through and is fixed at the bottom of the collecting cup, a plurality of light detection units which are electrically connected to the controller are provided around the optical fiber at the bottom of the collecting cup. The sunlight collection device and the method for tracking sunlight can not only locate the sunlight at second level, making the position quicker and more precise, but also making the light sensor and the collector of the sunlight collection device calibrate itself when mechanical deviation occurs, avoiding the phenomenon that although the sensor array precisely locating to sunlight and the light spot which is condensed by the collecting lens deviates the light-receiving of the optical fiber.

Sunlight collection device and method for tracking sunlight

The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a light collector, at least one optical fiber, a fiber arrangement substrate and a light guide plate. The optical fiber is connected between the light collector and the fiber arrangement substrate. The light guide plate is disposed at one side of the fiber arrangement substrate. The present invention can use ambient light rays to form a backlight source.

Backlight module and display apparatus

A light guiding system, an edge type backlight module and a liquid crystal display are disclosed. The light guiding system includes an ambient light collection system facing toward ambient light to absorb the ambient light and to generate absorbed light, a plurality of light guiding devices, and at least a first and a second light guiding bar. Each of the light guiding devices includes a light emitting end and a light incident end. The light incident ends of the optical fibers are arranged close to the ambient light collection system, and the lights entered from the light incident ends are propagated toward the light emitting ends. Each of the light guiding bars includes a light emitting surface, a light incident surface connected to the light emitting surface, and a first lateral side opposite to the light incident surface.

Growing community of inventors

Guangdong, China

Chao Ning