1059 results about "LCD television" patented technology

In one embodiment of the present invention, a display device is disclosed wherein if a frame luminance is less than a maximum value, the device creates a difference between luminance outputs in the two subframes and sets the luminance difference to a value less than a sub-maximum luminance which is a maximum luminance output in one subframe. With the arrangement, no complete switching of the subframes in which luminance outputs are made occurs at a grayscale level where low luminance replaces high luminance or vice versa. Thus, the grayscale level-luminance curve continues smoothly.

At least one or more of a conductive layer which forms a wiring or an electrode and a pattern necessary for manufacturing a display panel such as a mask for forming a predetermined pattern is formed by a method capable of selectively forming a pattern to manufacture a liquid crystal display device. A droplet discharge method capable of forming a predetermined pattern by selectively discharging a droplet of a composition in accordance with a particular object is used as a method capable of selectively forming a pattern in forming a conductive layer, an insulating layer, or the like.

A precision voltage control circuit applicable to a PWM (Pulse Width Modulation) circuit can offer CCFL (Cold Cathode Fluorescent Lamp) or EEFL (External Electrode Fluorescent Lamp) tubes a stable high frequency voltage or current, so that each CCFL or EEFL tube can get an appropriate compensation current and an optimal emitting efficiency and enhance its emitting quality. The circuit also has an overload current, low current, and overload voltage and low voltage protective circuit to protect the CCFL or EEFL tubes from being injured. The circuit can also be applied to the TFT LCD TV or other large LCD panels, and develops the best display effect of each LCD tube.

The present invention provides a method to automatically regulate brightness of liquid crystal displays (LCDs), which resolves the overload and easy fatigue of human eyes and poor image contrast due to high brightness of the conventional LCD. The present invention includes use of four parts, including an image brightness regulating unit, an image brightness ratio computation and output controlling unit, an ambient light detection and brightness adaptation regulating unit and an image gray level expanding unit. The image signals of an LCD are processed in such a manner to enable automatic control of optical flux of LCD TV by regulating the gray level of output images. Also, optical flux of LCD TV can be automatically controlled with the change of images and ambient light, thus alleviating overburdening of human eyes and improving the contrast and comfort of images for a better visual effect.

A control section divides a single frame so that a ratio of a period corresponding to a latter sub-frame and a period corresponding to a former sub-frame ranges from 1:3 to 1:7. A divisional point of the frame is a point which allows each of the latter sub-frame and the former sub-frame to minimize a difference between an actual brightness and an expected brightness. The frame may thus be divided at the point where the difference is largest in the normal hold display, so that it is possible to minimize the difference at this point. On this account, it is possible to reduce the difference in a single frame substantially by half as compared with an arrangement for carrying out the normal hold display, and thereby suppress the excess brightness caused by the difference.

The present invention provides a method to automatically regulate brightness of liquid crystal displays (LCDs), which resolves the overload and easy fatigue of human eyes and poor image contrast due to high brightness of the conventional LCD. The present invention includes use of four parts, including an image brightness regulating unit, an image brightness ratio computation and output controlling unit, an ambient light detection and brightness adaptation regulating unit and an image gray level expanding unit. The image signals of an LCD are processed in such a manner to enable automatic control of optical flux of LCD TV by regulating the gray level of output images. Also, optical flux of LCD TV can be automatically controlled with the change of images and ambient light, thus alleviating overburdening of human eyes and improving the contrast and comfort of images for a better visual effect.

PROBLEM TO BE SOLVED: To accomplish a control system in which relative positions of a remote controller and a television are recognized and contents can be selected or sound effects can be adjusted at the side of the television so as to be suited to the recognition by effectively utilizing an imaging means provided in the remote controller. SOLUTION: An external form of a liquid crystal television 100 is imaged by an imaging means 210 provided in a remote controller 200 and when a picked-up image is put on a control signal Sc and supplied from a control signal projection unit 220 to the liquid crystal television 100, at the side of the liquid crystal television 100, the relative position of the remote controller 200 (namely, of a viewer) to the liquid crystal television 100 is calculated from an extent of trapezoidal distortion of the picked-up image. The sound volume of left and right speakers 103, 104 is then balanced to be suited to the calculated relative position, and directivity of sounding is turned toward the viewer. COPYRIGHT: (C)2006,JPO&NCIPI

The invention discloses a liquid crystal television backlight control system and a method thereof, in which the backlight control system mainly comprises a video signal analyzing unit, a region data correcting unit, a region backlight signal control unit and an average illumination adjusting unit. The backlight control method comprises the following steps: performing statistics and analysis for the video signal by regions; correcting the video signal in individual backlight regions according to the analyzed result; and generating the backlight control signal for controlling the light emitting source at each region independently according to the analyzed result and performing dynamical illumination control for each light emitting source independently. The liquid crystal television backlight control method of the invention controls independently the illumination of each light emitting source according to the grayscale level distribution conditions of video signal at individual backlight regions, thus performing dynamical control on the backlight illumination by regions, saving power consumption, enhancing contrast, and improving observational comfort.

The invention provides a backlight scanning control method and device of a 3D liquid crystal television, and a corresponding 3D liquid crystal television. By the mode of backlight control, the backlight scanning control method and device can realize the purpose of displaying images of the left eye and the right eye at different time and can eliminate the crosstalk of the images of the left eye andthe right eye on the basis of no increase of the field frequency, thereby achieving good 3D display effect.

A cold-cathode tube has hitherto been used as a backlight for supplying illumination to a liquid crystal television but recently, light emitting diode pieces have been used for a backlight of a large-size liquid crystal television. For the purpose of improving the emission efficiency, flip chip mounting of the light emitting diode piece is advantageous but the mounting yield is restricted by the piece size, electrode structure and wire pattern structure, facing situations having difficulties in realizing simplified mounting and reduction of costs of members. In a liquid crystal display apparatus having a liquid crystal panel, an optical system and a light source, the light source includes a light emitting element structure having positive and negative electrodes, at least one of them being plural, and wires mounted to the positive and negative electrodes through flip chip mounting by making electrical correspondence to individual regions of the positive and negative electrodes.

The invention discloses a liquid crystal display screen image displaying method, a device and a liquid crystal display television and aims to provide a liquid crystal display screen image displaying method with backlight value which can be rapidly switched based on changes of image scenes without flickering. According to the liquid crystal display screen image displaying method, a liquid crystal display screen is transversely or longitudinally divided into at least two display areas, adjustment backlight values of the display areas are respectively determined according to maximum brightness of image pixels in the display areas and whether scene change of the image does occur or not, the image compensation coefficient of the image of each display area is calculated based on the adjustment backlight values, the image compensation is performed for the image of a current frame according to the image compensation coefficient, and each image display area on the liquid crystal display screen respectively outputs compensated image and the adjustment backlight values for image displaying. The liquid crystal display screen image displaying method, the device and the liquid crystal display television have the advantages that the liquid crystal display screen image displaying method is suitable for edge-lit liquid crystal display screens, light-emitting diodes (LEDs) are reduced, the screen power consumption is lowered, the screen contrast ratio is improved, and the light leakage in dark field is eliminated.

A method for manufacturing a semiconductor device by a small number of processes and by a means with high usability of materials to have high-definition and a gate insulating with a high step coverage property is disclosed. According to the present invention, a method for manufacturing a semiconductor device comprises the steps of forming a plurality of first conductive layers over a substrate; forming a first insulating layer to fill the gaps of the plurality of the first conductive layers; forming a second insulating layer over the first insulating layer and the plurality of the first conductive layers; and forming a semiconductor region and a second conductive layer over the second insulating layer.

An object of the present invention is to provide a method for manufacturing a semiconductor device having a semiconductor element capable of reducing a cost and improving a throughput with a minute structure, and further, a method for manufacturing a liquid crystal television and an EL television. According to one feature of the invention, a method for manufacturing a semiconductor device comprises the steps of: forming a light absorption layer over a substrate, forming a first region over the light absorption layer by using a solution, generating heat by irradiating the light absorption layer with laser light, and forming a first film pattern by heating the first region with the heat.

Disclosed is a liquid crystal television container. The user automatically adjusts the height of a liquid crystal television using a lifting device when the user wants to watch the liquid crystal television. The liquid crystal television is accommodated in the liquid crystal television container such that the liquid crystal television is protected from external impact when the user is not watching the liquid crystal television. The liquid crystal television container is equipped with wheels so that the user freely moves the liquid crystal television container. The liquid crystal television container includes a gate formed at an upper portion of the liquid crystal television container in such a manner that the gate is opened when a liquid crystal television moves upward and is closed when the liquid crystal television has been accommodated in the liquid crystal television container, a door hingedly coupled to the gate in order to open or close the gate, a frame base for fixedly mounting the liquid crystal television thereon, a frame lifting device for moving the frame base up and down, a controller for controlling a height of the liquid crystal television such that the liquid crystal television mounted on the frame base is fixed to a desired position, a driving unit including a motor operated according to a control signal generated from the controller, and a sensor for detecting a power-on signal of the liquid crystal television as power is applied to the liquid crystal television.

The invention is suitable to the technical field of liquid crystal display televisions and provides a method and a system for regulating backlight of a liquid crystal display television. The method comprises the following steps: a, the distance of between a watcher and the liquid crystal display television and the ambient brightness of the environment where the liquid crystal display television is in are detected, and then the average useful brightness value L of a liquid crystal display frame of the liquid crystal display television is determined; b, the backlight voltage of the liquid crystal display television is regulated according to the average useful brightness value L of the liquid crystal display frame, and the liquid crystal display television controls the backlight according to the backlight voltage. The technical scheme describes the relations of the ambient brightness, the distance between the watcher and the television, the watcher attribute and the liquid crystal display brightness, therefore, human eyesight is indirectly protected while the best sight sensibility is provided for the watcher, and the human eye protection and the frame reception effect are united.

The embodiment of the invention discloses a shift register unit, a GOA (gate driver on array) circuit, an array substrate and a display device, and belongs to the field of display techniques. The area, occupied by the GOA circuit, of the array substrate is reduced, and the requirements on narrow side frames of the array substrate are met. The shift register unit comprises an input module, a charge module and a resetting module; the output end of the input module is connected with a first grid line Gi by virtue of a first switching tube T1, and is connected with a (i+3)th grid line Gi+3 by virtue of a second switching tube T2; the grid electrode of the T1 is connected with a first clock signal wire; the grid electrode of the T2 is connected with a second clock signal wire; moreover, the phase difference of the first and second clock signal wires is a half cycle; a (i-1)th grid line Gi-1 and a (i+2)th grid line Gi+2 are connected to the input end of the input module by virtue of the charge module; a (i+1)th grid line Gi+1 and a (i+4) grid line Gi+4 are connected to the input end and the output end of the input module by virtue of the resetting module. The shift register unit, the GOA circuit and the array substrate can be applied to display devices such as an LCD TV (Liquid Crystal Display Television), a mobile phone and a tablet PC (personal computer).

A user is alerted on their mobile devices when a desired or potentially desirable item is available for purchase. The user can provide information about what the user is interested in purchasing, such as a general item (e.g., a 32″ LCD television), a specific item (e.g., a white Apple iPad2), a maximum price the user is willing to pay for the item, distance from user, availability (e.g., in stock, available within two weeks, not yet available but will be, etc.). A service provider may run queries to obtain information from merchants and other sellers. When there is a match with the user-specified parameters, the user is sent a notification, such as by SMS, email, voice message, or WAP Push, of the match.

The invention relates to a resourceful treatment method of waste thin film transistor liquid crystal monitors. The method comprises the following steps: sending liquid crystal display panels in a semi-sealed disassembly table to disassemble and remove mercury-containing fluorescent tubes so as to classify and separately recycle metal materials, plastics and glass and reach the aim of recycling resources; at the same time separating mercury-containing fluorescent tubes, organic polarizing film and liquid crystal and separately collecting and processing so as to realize the harmless and safe disposal of hazardous substances. The invention can be widely used for the resourceful recovery treatment of TFT-LCD computer monitors, LCD TVs and other liquid crystal products with similar structure and functions and is characterized by low operating cost and high recovery rate.

A device is provided for setting a voltage applied to each of data signal lines so as to correct a voltage, applied to the pixel, which corresponds to a gradation data signal in each of sub-frames of a single frame. As such, voltage drop, caused by a combination of voltages of the gradation data signal in each of the sub-frames, may be partially or even fully compensated. On this account, it is possible to provide a liquid crystal display device which can lessen or even avoid an influence of the voltage drop caused by, for example, gate-drain capacitance of the thin film transistor in case of adopting time-division driving, and / or a method for driving the liquid crystal display device.

There is provided a polarizing plate including a polyimide layer on at least one side of a polarizer, the polarizing plate having excellent durability causing no peeling or floating of each film to be formed even in a high temperature and high humidity environment. The polarizing plate of the present invention includes a polarizer and a protective film attached to at least one side of the polarizer through an adhesive layer, in which: the protective film is a laminate film including a transparent film layer and a polyimide layer; and the polarizer and the protective film are attached together such that the polyimide layer opposes the polarizer.

It is an object of the present invention to provide a liquid crystal panel, a liquid television and a liquid crystal display apparatus each having significantly reduced light leak and coloring in black display, a high contrast ratio in an oblique direction and a small color shift in an oblique direction. A liquid crystal panel according to the present invention includes: a liquid crystal cell including a liquid crystal layer containing nematic liquid crystals in homogeneous alignment in an absence of an electric field; a first polarizer arranged on a viewer side of the liquid crystal cell; a first laminated optical element arranged between the liquid crystal cell and the first polarizer; a second polarizer arranged on a backlight side of the liquid crystal cell; and a second laminated optical element arranged between the liquid crystal cell and the second polarizer.

The invention relates to a method for improving the partitioned halation of an LED (Light Emitting Diode) backlight source and a control device thereof; the method comprises the following steps: carrying out partitioned statistics according to RGB (Red, Green and Blue) image data, and extracting the calculated value of the partitioned backlight brightness; carrying out neighborhood smooth processing on the calculated value of each partitioned backlight to generate the output value of the backlight brightness; and transmitting the output value of the backlight brightness to a backlight drive module, and driving the LED to be lightened. The device comprises a partitioned backlight value extracting module, a backlight value processing module and a backlight source driving module which are in communication connection in sequence so as to realize the method. In the invention, overlarge brightness difference between adjacent backlight zones is prevented through the smoothing processing on the backlight partition so that the brightness transition of the backlight zone is gentler; therefore, the partitioned halation problem of an LED backlight liquid crystal television can be effectively improved. Simultaneously, the scheme has less influence on the decreasing of brightness without influencing the display effect.

A resonant DC / AC inverter includes a DC power source providing a DC voltage, a half-bridge power switch circuit electrically connected to the DC power source being operative to convert the DC voltage to an AC voltage, a resonant tank electrically connected between an output of the half-bridge power switch circuit and an input of a load being operative to boost and filter the AC voltage to generate an AC power voltage supplied to the load, and a controller being operative to detect a magnitude of current in the load and a magnitude of a voltage across the load and to generate pulse waveforms for turning on and off the half-bridge power switch circuit, wherein the controller substantially instantaneously varies a frequency of the pulse waveforms and a duty cycle of the pulse waveforms so as to operate the resonant DC / AC inverter near a neighborhood of a resonant frequency of the resonant tank regardless of a conduction state of the load and improve the efficiency of the inverter regardless of the higher DC voltage applied to the inverter. Particularly, the resonant DC / AC inverter utilizes a piezoelectric transformer to supply power to a fluorescent lamp which is wildly employed in display panels and is extensively used to provide backlighting for liquid crystal displays (LCDs), especially for backlighting LCD monitors and LCD televisions.

The present invention is directed to provide, for example, a lighting device and an image display, with which higher luminance and others can be achieved. In order to achieve this object, an image display of the present invention is formed in a lighting device (100) including a light source (102), a light guiding plate (103) that is disposed in such a manner that the light from the light source (102) is allowed to enter it through an end face (103a) thereof, and a reflecting surface (105) that is opposed to one major surface (103c) of the light guiding plate (103), wherein the one major surface (103c) of the light guiding plate (103) has a constant scattering layer (121) formed thereon which is adapted to transmit the incident light to scatter it at a predetermined rate, and the constant scattering layer (121) has a distribution and scattering structure (114) formed there on which is adapted to transmit the incident light to scatter it at a percentage that varies according to the distance from the above-mentioned light source (102).

A display device and a method of controlling the same are disclosed. A liquid crystal TV set or a plasma TV set having multiple display functions including PC monitor and TV display comprises a video signal synthesizer synthesizing PC video signal and TV video signal on a frame memory in a way not to superpose the screens. A PC screen (large picture) and TV screens (small pictures) are displayed in tiles. A dynamic image of TV video signal is displayed in one of plural small pictures, and a still image of TV video signal is displayed in another small picture thereby to display plural TV video channels concurrently. Consequently, a part of a PC monitor screen (large picture) is not concealed behind TV display screens (small pictures), thereby preventing workability of a spreadsheet work and a document composition work on the PC screen from being deteriorated.

A display device displaying an image by dividing each frame into subframes. A display section has pixels each containing a first subpixel (SP1) and a second subpixel (SP2) which are connected to the same source line (S) and the same gate line (G). A difference is created between the luminance of the first subpixels and the luminance of the second subpixels. Either the first or the second subpixels are driven for black (white) display, and the luminances of the other subpixels is adjusted, to display a low (high) luminance image. Thus, the discrepancy between the display luminance of either the first or the second subpixels and the actual luminance is minimized for improved viewing angle characteristics. The relationship between the levels of the luminances of the first and second subpixels (SP1, SP2) is changed every period. A user is less likely to see a screened pattern of bright dots and dark dots.

The invention relates to a power circuit structure and an LED liquid crystal television adopting the power circuit structure. The power circuit structure comprises a rectifying circuit, a PFC (Power Factor Correction) backlight drive circuit, a PF (Power Factor) value correction inductor and a flyback circuit, wherein the rectifying circuit is used for receiving alternating-current input, rectifying the alternating-current input and then outputting a first direct-current voltage; the PFC backlight drive circuit is electrically connected with the rectifying circuit so as to receive the first direct-current voltage and is used for carrying out PF correction on the first direct-current voltage so as to output a second direct-current voltage to supply power to a backlight source and carrying out constant-current control on the backlight source; the PF value correction inductor is electrically connected with the rectifying circuit to receive the first direct-current voltage and output a third direct-current voltage; and the flyback circuit is electrically connected with the PF value correction inductor to receive the third direct-current voltage and output a fourth direct-current voltage so as to supply power to a load the power of which is lower than that of the backlight source. Therefore, according to the power circuit structure and the LED liquid crystal television, the purposes of reducing system cost and improving system efficiency and reliability are achieved at the same time as PF value and harmonic wave factor are ensured.

An object of the present invention is to provide a method for manufacturing a display device with few steps and high yield. One feature of the invention is to form a first mask pattern having low wettability over a conductive layer, form a second mask pattern having high wettability over the conductive layer using the first mask pattern as a mask, and form a mask pattern for etching the conductive layer by removing the first mask pattern. Another feature is to form a pixel electrode by etching the conductive layer.