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

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.

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 small-sized liquid crystal display device which can enhance light utilization efficiency of light emitting diodes and also can reduce a thickness of the liquid crystal display device is provided. A flexible printed circuit board is connected to a terminal portion of a TFT substrate. In such a flexible printed circuit board, a light-emitting-diode-use flexible printed circuit board is folded and extends toward a back surface of a backlight. Light emitting diodes are arranged on the light-emitting-diode-use flexible printed circuit board in such a manner that the light emitting diodes are pressed against an edge portion of the light guide plate. Since the light emitting diodes and the edge portion of the light guide plate are brought into close contact with each other, the utilization efficiency of light from the light emitting diodes is enhanced. Further, since the light emitting diodes and the edge portion of the light guide plate which faces the light emitting diodes are provided outside the TFT substrate, a thickness of the whole liquid crystal display device can be reduced.

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.

The invention provides a light guide plate and a manufacturing method as well as a forming mold of the light guide plate, relating to the technical field of display. The light guide plate comprises at least one in-light plane, an out-light plane and a bottom plane, wherein the out-light plane and the bottom plane are oppositely arranged and are both connected with the in-light plane; a cavity is formed inside the light guide plate; the incident light from the in-light plane is radiated out from the out-light plane after being refracted and/or reflected by the cavity. With the adoption of the light guide plate, the light energy loss is reduced, the image brightness is improved, the production cost is reduced, and the competitiveness of a product is improved. The invention also provides a manufacturing method and a forming mold of the light guide plate; and the light guide plate is produced by using an injection molding or extrusion molding method and the corresponding forming mold.

The invention discloses a screen for a projector and a projection system. The screen comprises a directing layer, a beam splitting layer and a base layer which are successively stacked, wherein the directing layer is used to direct projecting beams incident in a first direction range from the outside thereof to an interface between the directing layer and the beam splitting layer, and to make the projecting beams incident to the interface at an angle that is larger than an angle of incidence at which a total reflection is formed on the interface and then reflected back to the outside of the directing layer; the directing layer also is used to direct ambient light beams incident in a second direction range from the outside thereof to the interface between the directing layer and the beam splitting layer, and to make the ambient light beams incident to the interface at an angle that is less than or equal to an angle of incidence at which a total reflection is formed on the interface and then passing through the interface into the beam splitting layer; the refraction index of the beam splitting layer is less than that of the directing layer. In the aforementioned way, the screen and the projection system can reduce a glare phenomenon caused by the ambient light beams.

A method is provided for improving the x-ray screen brightness of gadolinium oxysulfide x-ray phosphors. The method applies annealing and acid washing steps in a specific order following deagglomeration of the phosphor in order to ameliorate the loss of brightness caused by the deagglomeration.

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.

Disclosed herein is a power consumption reduction device including: a region-adaptive gray level conversion unit; wherein the gray level conversion unit is operable to convert n1 bits of gray level information for a low gray level region into m1 (<n1) bits of gray level information, further operable to convert n2 bits of gray level information for an intermediate gray level region into m2 (≦n2) bits of gray level information, and still further operable to convert n3 bits of gray level information for a high gray level region into m3 (<n3) bits of gray level information, and the gray level conversion unit converts a gray level of an input video signal so that m1≦m2, m3≦m2 and n1+n2+n3>m1+m2+m3 are all satisfied.

The invention provides a driving device for a liquid crystal display and a related output enable signal transfer device. The driving device comprises a receiving terminal, a shift register module, a multiplex module and an output terminal. The output enable signal transfer device generates a plurality of output enable signals through the shift register module and the multiplex module, and correspondingly controls a plurality of grid channel groups of a grid driver to improve the setting flexibility of a black frame insertion signal and further improve the screen frame brightness of the liquid crystal display.

A display method for sunlight readable is provided, which is applicable to an electronic device having a display panel. The display method includes the following steps. An ambient light sensor value and image content are obtained. Next, a liquid crystal (LC) driving voltage is altered based on the ambient light sensor value and the image content, wherein the LC driving voltage is increasingly proportional to the ambient light sensor value and exceeds a normal operation driving voltage when the ambient light sensor value exceeds a high luminance value. Then, the display panel is drived under the LC driving voltage. Finally, a sunlight readable image is displayed on the display panel.

The present invention provides a backlight module and a display apparatus. The display apparatus comprises a backlight module and a display panel. The backlight module comprises a light guide plate and a plurality of light sources. The light guide plate has a bottom surface. The bottom surface is formed with a middle trench. The middle trench comprises dimming cants. The light sources are positioned at two opposite sides of the light guide plate in accordance with the dimming cants. The present invention can adjust a light intensity distribution and promote the central brightness of the screen.

The invention relates to a flat board displaying equipment which is used to form designing board and selectively regulate color and quantity of light, in liquid crystal by holograph. Especially, because polarized light is not used, not only reduces expense of quantity of light but also controls light effectively, the lightness can be increased. On the other hand, because the quantity of limb can be reduced, the operation process is simplified, and constructed super slim displaying equipment. Additionally, the utilization factor of light is improved by acting and using the light in light wave channel, and uses light emitting diode LED, laser diode LD as light source, to enlarge chroma recurring range, to construct display equipment with bright picture.

The invention relates to a light-emitting diode lighting system and a control method thereof, and the lighting system comprises a first color light-emitting diode, a second color light-emitting diode, a third color light-emitting diode and a control circuit. The control circuit is electrically connected with the first color light-emitting diode, the second color light-emitting diode and the thirdcolor light-emitting diode, and the control circuit can sequentially drive the first color light-emitting diode, the second color light-emitting diode and the third color light-emitting diode in a color looping frame with relative duty cycle by control and only drive two of the first color light-emitting diode, the second color light-emitting diode and the third color light-emitting diode at the same time in at least one transition period of the color looping frame. The lighting system can not only improve the screen brightness of a projector of a light-emitting diode light source, but also save more energy and be conductive to heat dissipation in comparison with the technology of simultaneously lighting the three light-emitting diodes.

The invention discloses a touch 3D display module. The touch 3D display module comprises a 3D display module and a touch module which are integrated together from the inside to the outside, the 3D display module and the touch module are integrated on a shared glass layer, the touch module and the 3D display module of the touch 3D display module are integrated, so that one module can structurally carry out touch module and 3D display functions, the shared glass layer can be a double-sided ITO (Indium Tin Oxide) conducting glass layer or can exist as a carrier for an ITO conducting film, and the touch 3D display module is highly integrated, and avoids the problem of poor manufacturability in production in the prior art; during production, the conventional 3D module processing technology is directly adopted, the rest parts of the touch module are directly attached on the 3D module, and thereby the processing technology is simplified; moreover, because the number of the parts is reduced, quality can be easily guaranteed, transparency is increased, the loss of displayed light is reduced, the light transmission rate is increased, and thereby image quality and image brightness are increased; and furthermore, because the usage of materials is reduced, the production cost is low.

The invention provides a method and a device for converting three-color data to four-color data. The conversion method comprises the steps of: determining a normalized stimulus value signal of a whitesub-pixel according to a minimum value of a first stimulus value signal after gain processing, a second stimulus value signal after gain processing and a third stimulus value signal after gain processing; and regarding a difference value between the first stimulus value signal after gain processing and a red stimulus value signal in a tristimulus value signal of the white sub-pixel as a normalized stimulus value signal of a red sub-pixel, regarding a difference value between the second stimulus value signal after gain processing and a green stimulus value signal in the tristimulus value signal of the white sub-pixel as a normalized stimulus value signal of a green sub-pixel, and regarding a difference value between the third stimulus value signal after gain processing and a blue stimulusvalue signal in the tristimulus value signal of the white sub-pixel as a normalized stimulus value signal of a green sub-pixel, so as to improve the penetration rate of light and screen brightness while solving the problems of large viewing angle color cast and color distortion.

A multi-grayscale display device to appropriately control brightness of a display (screen) and power according to the content of a picture while preventing deterioration of image quality of a picture, so that both of these performances are improved. In a multi-grayscale processing unit of the display device (PDP device), in a subfield (SF) driving control, the number of pixels of low grayscales in an image of an input picture signal is detected and determined by an image number detection unit, and accordingly, a selection signal to switch one from outputs of a plural types of SF conversions of an SF conversion unit is determined and outputted by a switching unit. In the control, an SF conversion in which the number of rest SF becomes large as the number of pixels of low grayscales becomes small selected.

An optical lens and an imaging device including the same are disclosed. The optical lens can sequentially comprise a first lens, a second lens, a third lens and a fourth lens from the object side to the image side along the optical axis. The first lens can have negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens can have positive focal power, and the object side surface and the image side surface of the second lens are convex surfaces; the third lens can have positive focal power, and the object side surface and the image side surface of the third lens are convex surfaces; the fourth lens can have negative focal power, the object side face of the fourth lens is a convex face,the image side face of the fourth lens is a concave face, and the object side face or the image side face comprises at least one inflection point. According to the optical lens provided by the invention, at least one of the beneficial effects of good imaging quality, good thermal compensation, large field angle, large clear aperture, high picture brightness, miniaturization and the like can be achieved.

The invention relates to a glass-plastic hybrid lens, and the lens consists of a glass lens and a plastic lens, and comprises a first lens (1), a second lens (2), a third lens (3), a fourth lens (4), a diaphragm (S), a fifth lens (5), a sixth lens (6), a seventh lens (7), an eighth lens (8) and a ninth lens (9) which are sequentially arranged along an optical axis from an object side to an image side, wherein the first lens (1), the second lens (2), the fifth lens (5) and the ninth lens (9) are negative focal power lenses; the third lens (3), the fourth lens (4), the sixth lens (6), the seventh lens (7) and the eighth lens (8) are positive focal power lenses. The glass-plastic hybrid lens provided by the invention has the characteristics of ultra-large aperture, high pixel, small size and low cost.

The invention provides an optical element, used in a reflection-type liquid crystal display system. The optical element comprises a base material, and a plurality of prisms which are formed on the base material and arranged along a first direction in sequence. Any one of the plurality of prisms is formed by a plurality of sub-prisms which are arranged along the first direction in sequence, refractive index of the plurality of sub-prisms decreasing in sequence. Through adding a prism array system formed by the plurality of prisms between a power supply and a reflection-type liquid crystal panel, each prism is formed by the plurality of sub-prisms, and the refractive index of the plurality of sub-prisms decreases from a near light end to a distance light end gradually, so that an angle of emergent light of a light source can be reduced, energy of available light entering the reflection-type liquid crystal display system is enhanced, and light utilization rate and screen brightness of a reflection-type liquid crystal display panel are improved.