67results about How to "Increase screen brightness" patented technology

A method and apparatus for capturing stable images are disclosed. An ambient light sensor makes measurements of ambient light. A change in ambient light between two measurements is determined. If the change in ambient light measurements falls in a predefined range, then the change may be attributable to ambient light sensor being blocked by a user to trigger image capturing. Consequently, a camera is triggered to capture an image. Conversely, if the change in ambient light measurement is outside the range, image capturing is not triggered as the change may be attributable to other factors.

A closed circuit video magnification system, incorporates a base, upon which the operating components of this system mount, a platform mounted upon the base for shiftable movement both laterally and depth-wise, in the X-Y directions, pivotal mount a LCD screen for projection and viewing of any matter scanned upon the shiftable platform, or of any other images that are detected and picked up by the miniature camera, also incorporated into the structure of this system. The miniature camera is also mounted upon shiftable arms, for scanning downwardly towards the platform, or which can be pivoted vertically, or circularly, in order to view any scene provided in the surrounding area, and which is capable of being picked up by the lens of the camera, for processing and projecting onto the screen, for viewing by the handicapped person. Controls are provided for regulating the amplification, reduction of size, brightness, and contrast, in addition to its on / off control.

An in plane switching mode liquid crystal display device and its fabrication method are disclosed. The in plane switching mode liquid crystal display device includes: a first and second substrate; a gate line and a data line respectively disposed horizontally and vertically on the first substrate; a first to a fourth sub-pixels defined by the gate line and the data line and arranged in a 2×2 matrix form; at least one pair of first and second electrodes disposed in each sub-pixel and generating an in-plane electric field; a first common line equally dividing the first and the second sub-pixels and connected to the first electrode disposed in the first and the second sub-pixels; a second common line dividing the third and the fourth sub-pixels to make an area of one of said sub-pixels larger than the other one and connected to the first electrode disposed in the third and the fourth sub-pixels; a switching device formed at a crossing of the gate line and the data line; and a liquid crystal layer formed between the first and the second substrates.

Light emitted by a backlight can be prevented from leaking through a chamfered portion of a front window of a liquid crystal display device. An upper polarizing plate is bonded over the counter substrate, and a front window is bonded over the upper polarizing plate with a UV-curable resin adhesive. The front window is chamfered and a light shielding member is formed on the chamfered portion. The UV adhesive exists between the chamfered portion and the surface of the upper polarizing plate or the counter substrate, and an outer end of the polarizing plate exists at a point outer than an outer end of the front window. Since the light shielding member for the chamfered portion is formed, light from the backlight does not penetrate from the chamfered portion. Thus, light leakage at a periphery of a screen can be prevented even when the view angle is large.

The invention provides a light guide plate. The light guide plate includes a light outlet surface, a light guide plate bottom face and at least one light inlet surface; the light outlet surface is opposite to the light guide plate bottom face, and the light inlet surface is connected to the light outlet surface and the light guide plate bottom face; the light guide plate is in the shape of wedge, the thickness of one end of the light guide plate closing to the light inlet surface is more than that of one end thereof far from the light inlet surface; the light guide plate is further provided with a wedge-shaped hollow cavity, and the wedge-shaped hollow cavity is provided with a wedge-shaped hollow cavity bottom face closing to the light guide plate bottom face; a reflective sheet is arranged in the wedge-shaped hollow cavity of the light guide plate, the reflective sheet is fit to the wedge-shaped hollow cavity bottom face, and one side of the reflective sheet facing to the light outlet surface is provided with a reflective bump. The light guide plate is low in light energy loss, low in manufacturing cost, and able to improve the light brightness. The invention further provides a backlight module and a liquid crystal display device.