76results about How to "Reduce backlight brightness" patented technology

An AV device comprises a processing section for carrying out a process for view and listening, a signal output section for outputting a signal to the processing section, first signal input sections including a mobile audio input terminal, a first detecting section for detecting insertion / removal of a plug into / from the mobile audio input terminal, and a first control section for controlling the connection between the first signal input sections and the signal output section according to the result of the detection by the first detection section. Another AV device is provided in which insertion / removal of a plug into / from a second signal input section and indication information is outputted to a second video display section according to the detection result. With such constitutions, various processings can be carried out according to insertion / removal of a plug.

The invention discloses a liquid crystal display device comprising a decoding module, a time sequence control module, a liquid crystal drive module, a backlight drive module, a liquid crystal displaypanel and an LED backlight module. The liquid crystal display device is characterized by further comprising a dynamic backlight control module. The invention further discloses a method for processinga digital image signal of a liquid crystal display adjusting device. The invention adopts a method for independently controlling backlight subareas to be capable of reducing or even closing the backlight at parts with darker pictures and really darkening the backlight, so as to improve the picture contrast ratio and change the backlight brightness according to the change of the pictures by independently controlling the backlight subareas, thus reducing power consumption.

A light guide plate includes a light input surface, a light output surface adjoining the light input surface, and a reflecting surface opposite the light output surface. One of the light output surface and the reflecting surface defines a plurality of scattering microstructures. Each scattering microstructure includes a spherical protrusion having a substantially spherical surface, and a substantially ring-shaped groove defined around a periphery of the spherical protrusion. At least half of the spherical surface is as smooth as a mirror. A method for manufacturing the light guide plate and a backlight module using the light guide plate are also provided.

The invention provides a method and system for improving an RGBW-image saturation. The method for improving the RGBW-image saturation includes step A; according to an independently adjustable range of screen partition dynamic backlight, dividing the screen into a plurality of screen subareas; step B: partitioning a to-be-displayed RGBW image according to the screen subareas; step C: determining saturation-to-be-adjusted partitions in the partitions of the to-be-displayed RGBW image; and step D: when the to-be-displayed RGBW image is displayed, according to a preset proportion, reducing the backlight luminance of the saturation-to-be-adjusted partitions. The method and system for improving the RGBW-image saturation are capable of realizing refined adjustment of the saturation of the RGBW image.

The invention discloses a liquid crystal display adjusting device, which comprises a liquid crystal driving module, a backlight driving module, an image signal receiving module, an image caching module, an image analyzing module, a liquid crystal gray scale adjusting module, and a backlight brightness adjusting module. The invention also discloses a method for processing digital image signals forthe liquid crystal display adjusting device, and a liquid crystal display.

A method and an apparatus for controlling a power of a display device including a backlight, and a display device having a power controlling function are provided. The apparatus includes: a histogram analyzer that analyzes a histogram of an input image signal including one or more color components, and determines an intensity clipping based on the analyzed histogram; an image brightness compensation unit that calculates an intensity increasing ratio of the input image signal using the intensity clipping, and applies the intensity increasing ratio to each of the color components to generate an output image signal, an intensity of which is increased; and a backlight brightness controller that controls a brightness of the backlight based on the intensity increasing ratio.

An initial light control value calculation section calculates the backlight's initial light control value K0 according to brightness of an inputted image signal for each area. A black area measurement section measures a black area S by obtaining ratio of the number of pixels satisfying Y≦Y0 (Y: brightness signal level, Y0: black level threshold) in the screen. A minimum light control value output section determines a minimum light control value Kmin based on comparison between the measured black area S and a black area threshold S0 and outputs a maximum value permissible for the light control value as the value Kmin when the black area S is the threshold value S0 or less. An LED control signal calculation section outputs a control signal to LED light sources based on a light control value K1 as the higher one of K0 and Kmin.

The invention provides a display device image processing method and a processing system, wherein the method comprises the following steps: analyzing a video input signal so as to obtain a histogram and an average brightness value of a video frame image; regulating backlight brightness in accordance with the average brightness value, and outputting a regulated brightness signal to a backlight source; and dynamically improving the data level of the video input signal in accordance with the histogram, and outputting the regulated video signal to a liquid crystal panel. According the image processing method and the image processing system disclosed by the invention, by dynamically reducing the backlight brightness and by dynamically improving the data level of the video image, the contrast ratio, the field depth and the layering sense of a picture are improved while power consumption is reduced, so that energy is saved, and meanwhile, a picture quality is better improved.

The invention provides a backlight adjusting method. The method includes the first step of responding to an adjusting signal including backlight adjusting parameters and controlling and adjusting the brightness of backlight according to the backlight adjusting parameters, the second step of adjusting the brightness of a YUV image signal in a YUV mode according to the brightness adjusting parameters when the brightness of the backlight is adjusted, the third step of converting the YUV image signal in the YUV mode to an RGB image signal in an RGB mode according to the adjusted brightness value, and the fourth step of outputting and displaying the RGB image signal obtained through conversion. Through the method, the brightness of the backlight is lowered while the brightness of the YUV image signal is adjusted. Consequently, the corresponding RGB image signal is correspondingly adjusted, and image color distortion and image display quality caused by the brightness reduction of the backlight are compensated and improved. The invention further provides an electronic device with the backlight adjusting function.

The invention discloses a remote control, and a backlight control method and a backlight control system thereof. The backlight control method includes steps: detecting illumination intensity of current environment, and converting the illumination intensity into an AD (administrative distance) value; after a button triggering signal is detected, comparing the AD value with a preset threshold valve, and turning on backlight with corresponding duty ratio according to comparison results; and after the backlight is turned on with the corresponding duty ratio for a preset time period, turning off the backlight. Control on backlight brightness according to the illumination intensity of the current environment is realized, the backlight brightness is lowered when the illumination intensity of the current environment is high, and the backlight brightness is increased when the illumination intensity of the current environment is low, so that electricity consumption is effectively lowered, and more humanization and intelligentization are realized.

The invention discloses a method, a device and equipment for adjusting the backlight brightness according to human eye characteristics, and provides a method, a device and equipment for adjusting thebacklight brightness of screens. The method includes acquiring image information and environment information and determining human eye characteristic information according to the image information andthe environment information; acquiring display screen information computing screen backlight reducible proportions according to the display screen information, the human eye characteristic information and the image information and determining screen pixel brightness compensation values according to the proportions; adjusting the backlight brightness according to the screen backlight reducible proportions and adjusting screen pixel brightness values according to the screen pixel brightness compensation values. The human eye characteristic information is related to the minimum amplitude of human eye perceptible brightness variation.

The invention discloses a display brightness adjustment method and related equipment. The method comprises: applying to an electronic device comprising a screen and a DPU, the DPU comprising N layer hardware and layer mixers, the N layer hardware comprising first layer hardware and M second layer hardware, N being an integer larger than 1, M being smaller than N, and each layer hardware being connected with the layer mixers. The method comprises the following steps: when an adjustment instruction for the backlight brightness of the screen is detected, setting the backlight brightness value ofthe screen as a first threshold value, then modifying the first layer to reduce the brightness of the first layer, then superposing the modified first layer with a plurality of second layers to obtaina third layer, and finally displaying the third layer through the display screen. By adopting the embodiment of the invention, the screen flickering effect can be reduced.

Aiming at solving the backlight dynamic control problem of a liquid crystal display television (LCD TV), the invention provides a simple and easy LCD TV intelligent dynamic backlight control method, including the following steps: building up an analog function relationship between the current image brightness value and the desired backlight brightness value according to eye comfortableness of a watcher; reading the average brightness value of all frames of images from an image chip, and calculating the current image brightness value through the average brightness value; working out the desired backlight brightness value according to the function relationship between the current image brightness value and the desired backlight brightness value; and finally changing the backlight brightnessof the screen of the LCD TV to be the desired backlight brightness value. The method is simple, easy and mature and can substantially improve the image dynamic contrast ratio of the LCD TV and reach the purposes of reducing the average brightness of the image, improving the eye comfortableness, saving energy and reducing energy consumption.

A display apparatus is disclosed. The display apparatus includes at least one display unit and a host. The host is cooperated with the at least one display unit. The host includes a sensing unit. When the at least one display unit displays a frame, the sensing unit is used to sense a first gaze position on the frame which is watched by an eye and a first distance between the eye and the first gaze position. When the display apparatus determines a first gaze range corresponding the first distance and divides the frame into a first gaze region and a first non-gaze region according the first gaze position and the first gaze range, the display apparatus changes a display parameter of the first gaze region or the first non-gaze region.

A light emitting display device with backlight dimming compensation. A backlight emits light based on a backlight control signal. A power supply generates a first supply voltage based on a supply control signal. A data driver converts pixel data into analog data voltages. A dynamic voltage range of the analog data voltages is controlled by the first supply voltage. A pixel array includes a plurality of pixels, and transparency of the pixels to the light emitted by the backlight is based on the analog data voltages. A power control module of the display device determines if a power condition is met and, responsive to the power condition being met, adjusts the backlight control signal to reduce a brightness of light emitted by the backlight and adjusts the supply control signal to increase the first supply voltage.

The invention relates to an adaptive adjuster of LCD TV display quality and relative method, wherein said adjuster comprises LCD display module, one signal collector for collecting the brightness parameter of image, an image strengthen processing module, one CPU for analyzing the brightness information; the image strengthen processing module is connected to the CPU; the signal collector is connected to CPU; CPU controls the backlight source brightness adjusting port connected to the LCD display module. The invention checks the brightness area ratio of image to automatically decide to reduce the backlight brightness or not; the image strengthen processing module corrects the brightness and extends the black potential of dark area, to limit over brightness, etc. The invention can improve quality and save energy.

The invention discloses an image occurrence frequency based liquid crystal display power consumption reducing method. A gain coefficient alpha corresponding to an image which is not similar to a histogram in cache or a histogram in a front frame image is calculated, the newly calculated gain coefficient alpha is used to respectively adjust light transmissivity and backlight intensity of a liquid crystal display; a gain coefficient alpha corresponding to an image which is similar to the histogram in cache or the histogram in the front frame image is directly called to respectively adjust light transmissivity and backlight intensity of the liquid crystal display. When the times of lightening a screen are integer multiples of x, the cache is updated to some images with higher continuous occurrence frequencies and gain coefficients alpha corresponding to the images; by means of repeated occurrence of the images and the property of infrequent changes of a lock screen and a main screen of a terminal end, backlight of the liquid crystal display is adjusted, the calculation amount of the gain coefficients alpha is greatly reduced, and the power consumption is low.

The invention discloses a mobile terminal of a touch screen based on an embedded sensor. A display device is a liquid crystal display. The touch screen is fixed to a mobile terminal casing and covers the liquid crystal display, a plurality of layers of waveguide tubes are inscribed in a glass substrate of the touch screen to form a plurality of sensors having different functions. The sensors comprise an optical sensor and a temperature sensor, or the waveguide tubes inscribed in the glass substrate are provided with a plurality of small light-leaking holes, and the mobile terminal is certificated through a pattern composed of the small holes. Due to the fact that the external connection mode of the mobile terminal of the touch screen based on the embedded sensor is changed, a built-in mode is adopted, the size of a device and the number of parts are greatly reduced, users experience true portability, and user experience is improved.

A backlight processing system and a method thereof are provided. The gray level values of pixels in an input frame signal are adjusted and the brightness thereof is decreased correspondingly. During gray level value adjustment, the gray level values of the pixels in dark regions are reduced, and the gray level values of the pixels in bright regions are increased. During backlight adjustment, first, statistics information on distribution of the gray level value versus the number of pixels is obtained according to the gray level distribution of the original frame. The number of pixels at each gray level is accumulated. When the accumulation value reaches a certain value, a reference signal is obtained. The brightness of the backlight is then adjusted according to the reference signal.

The invention discloses a display adjustment method and device, electronic equipment and a storage medium, relates to the technical field of display control, and is used for ensuring that a farther user can clearly see contents displayed in a target display area while protecting the eyesight of the user. The method comprises: detecting a touch operation of the user for a display screen, and determining the position of a first contact initially contacted with the display screen by the user; determining a target display area according to a preset display area selection mode based on the positionof the first contact; and adjusting and reducing the backlight brightness of the target display area, and enhancing the contrast between the display background in the target display area and the handwriting of the display content user for the display screen.

A light guide plate includes a light input surface, a light output surface adjoining the light input surface, and a reflecting surface opposite the light output surface. One of the light output surface and the reflecting surface defines a plurality of scattering microstructures. Each scattering microstructure includes a spherical protrusion having a substantially spherical surface, and a substantially ring-shaped groove defined around a periphery of the spherical protrusion. At least half of the spherical surface is as smooth as a mirror. A method for manufacturing the light guide plate and a backlight module using the light guide plate are also provided.

The wavelength conversion member includes a wavelength conversion layer containing a quantum dot, in which the wavelength conversion layer is a cured layer formed by curing a polymerizable composition containing the quantum dot and a polymerizable compound, the polymerizable composition contains at least one type of first polymerizable compound, the first polymerizable compound is a monofunctional (meth)acrylate compound in which a value of Mw / F obtained by dividing a molecular weight Mw by the number F of polymerizable functional groups in one molecule is greater than or equal to 130, the number of (meth)acryloyl groups in one molecule is 1, and a Log P value is less than or equal to 3.0, and the polymerizable composition contains greater than or equal to 50 parts by mass of the first polymerizable compound with respect to 100 parts by mass of the total amount of the polymerizable compound contained in the polymerizable composition.

The present invention provides a color liquid crystal display panel, which includes: a plurality of layers of liquid crystal cells (2) that are arranged parallel to each other and bonding members (8) bonding the plurality of layers of liquid crystal cells (2). Each of the liquid crystal cells (2) includes a thin-film transistor substrate (20), a package substrate (30), and a dye-doped liquid crystal layer (40) sealed between the thin-film transistor substrate (20) and the package substrate (30). The dye-liquid crystal layer (40) includes a liquid crystal material, a dichroic dye, and a chiral reagent. The dichroic dye of each of the liquid crystal cells (2) absorbs light of a predetermined range of wavelength. The plurality of layers of liquid crystal cell (2) respectively absorbs lights of different ranges of wavelength. The color liquid crystal display panel requires no conventionally used polarizer and color filter, so that the manufacture cost of and the requirement for backlighting brightness by the liquid crystal display panel can both be reduced.

The present invention discloses a mobile terminal backlight adjustment method and system. Whether a mobile terminal is in a video play state is detected, if yes, a backlight brightness of a non-video play interface on a display interface of the mobile terminal is adjusted, so that the backlight brightness of the non-video play interface is lowered, a problem that content of the non-video play interface interferes human eyes greatly when the mobile terminal plays the video is solved, the video experience of the user is improved, and the user enjoys great convenience.

The invention provides a display method and electronic equipment. The display method is applied to a display device with a direct type backlight source and a liquid crystal display panel, and the direct type backlight source is divided into a plurality of control blocks. The display method comprises the following steps: determining a to-be-displayed image corresponding to to-be-displayed data, and a target control block related to the to-be-displayed image; if the to-be-displayed image and the target control block meet the control condition, adjusting the backlight brightness of the target control block, and adjusting the display data of the pixel units in the display area corresponding to the target control block to be different from the to-be-displayed data. A backlight brightness adjusting technology is combined with gray scale adjustment of a display panel to display an image, so the backlight brightness can be further reduced, and the purpose of saving power consumption of a backlight source is achieved. Due to the fact that the backlight brightness and the gray scale of the display panel are adjusted at the same time, display of more gray scale images can be achieved through different combinations and collocation, and the contrast ratio and the gray scale number of images displayed by the electronic equipment are improved.

The present invention provides a color liquid crystal display panel, which includes: a plurality of mutually parallel layers of liquid crystal cells (2) and bonding members (8) bonding the plurality of layers of liquid crystal cells (2). Each of the liquid crystal cells (2) includes a thin-film transistor substrate (20), a package substrate (30), and a dye-liquid crystal layer (40) sealed between the thin-film transistor substrate (20) and the package substrate (30). The dye-liquid crystal layer (40) includes a liquid crystal material and a dichroic dye. The dichroic dye of each of the liquid crystal cells (2) absorbs light of a predetermined range of wavelength. The plurality of layers of liquid crystal cells (2) respectively absorbs lights of different ranges of wavelength. The present invention includes a dichroic dye combined in a liquid crystal material in order to use the dichroic dye to absorb light of some colors thereby achieving color displaying without using a conventionally used polarizer and manufacture of a color filter substrate, so that the manufacture cost of and the requirement for backlighting brightness by the liquid crystal display panel can both be reduced.

A device for removing off overlap and fuzzy of image between pictures consists of the first and the second input control line, the first and the second input data line, the first and the second capacitor, output driving voltage line, the first and the second transistor, back light unit and back light voltage input control line. It features that the first and the second capacitors are earthed, the first and the second input control lines are connected to grid driver and the first and second input data lines are connected to data driver.

The invention discloses a brightness adjustment system and method of a display screen of a financial self-service terminal. The financial self-service terminal comprises a terminal, the display screen and a controller. The terminal is arranged in an operation room. The display screen is provided with a brightness adjustment interface which is connected with the controller. The brightness adjustment system comprises a body proximity sensor and an environment brightness sensor. The body proximity sensor is arranged in the middle of the front side of the terminal and further arranged at the height of an input keyboard. The environment brightness sensor is arranged at the top of the front side of the display screen or the terminal or in the operation room. The body proximity sensor and the environment brightness sensor are electrically connected with the controller respectively. By the aid of the financial self-service terminal, environment monitoring and body detection is achieved; during operation, in case of high current environment brightness, the external controller automatically improves backlight brightness of the screen, so that the content is clearly displayed on the screen for the user.