663 results about "Crystal display" patented technology

The invention relates to an LCD basal array and a driving method thereof. The basal array includes a substrate basal array, sub-pixel electrodes, datawires and scanning lines, which are in the same row. The sub-pixel electrodes in the same row are connected with one datawire and each datawire is connected with two rows of the sub-pixel electrodes. The sub-pixel electrodes in the same line are separately connected with the two scanning lines alternately in pairs and the sub-pixel electrodes connected with the same scanning line are positioned in the same line. Two sub-pixel electrodes in the same line between the two contiguous datawires are connected with the same scanning line and separately connected with the two datawires. The driving method includes the following steps of: inputting video data signals and sequentially driving the sub-pixel electrodes alternately connected with the two scanning lines in pairs via the two scanning lines when driving each row of the sub-pix electrodes. The invention uses the technical proposal that the two rows of sub-pixel electrodes share one datawire, thus greatly reducing the consumption of the required datawires and the data driving chips and the whole cost of the LCD device.

An edge detecting circuit detects whether a particular pixel belongs to an edge by determining whether the differential value of the pixel from the neighboring pixel is equal to or greater than a threshold. Based on the detection result, an emphasis converter stops OS drive when the image of a pixel area is regarded as an edge image in accordance with the detected result of the edge detecting circuit and implements OS drive when the image of a pixel area is not regarded as an edge image. In this way, the edge detecting circuit detects edge portions of the input video, whereby OS drive in the emphasis converter can be controlled so as to be turned on and off.

The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for self-alignment additives which have a certain position of the functional groups.

A head-mounted image display device with a good operability and a data processing apparatus including such a display device. A head-mounted image display device wherein a liquid crystal panel and an enlarging optical system are crystal display panel through the enlarging optical system housed in a frame and wherein images generated on the liquid are visible in the field of view in front of the frame comprises a first direction detection means (107) disposed in part of the frame (101) for detecting the direction of the user's head; an observation point detection means (109) disposed in part of the frame for detecting the user's line of sight; a trigger input means (4) for transmitting trigger signals; and an image generation means (3, 105) for controlling images generated on the liquid crystal display panel based on signals from the first direction detection, observation point detection, and trigger input means.

An illuminating device includes: a light source; a light guide plate which converts light emitted from the light source into a surface light ray and emits the surface light ray through a front surface of the light guide plate; and an optical sheet which changes a propagation direction of the surface light ray emitted from the light guide plate. The light source is arranged in end surface different from the front surface in the light guide plate. A polarization state converting structure to convert a polarization state of the light propagating through the light guide plate is provided in a surface opposing the front surface in the light guide plate. The polarization state converting structure contains an inclination plane having a ridge line in a direction different from a direction in parallel to the longitudinal direction of the end surface.

The invention discloses a piece of mobile wrist strap equipment and a working method thereof. The mobile wrist strap equipment comprises a single chip MCU (Microprogrammed Control Unit), a communication IC (Integrated Circuit), a buzzer, a vibrator, a key, an LED (Light Emitting Diode) lamp, a low-voltage checking circuit, a 2.4G communication frequency modulation circuit, an acceleration transducer, a gyroscope integrated chip, a register, a USB (Universal Serial Bus) circuit, a power supply stabilivolt, a USB charging circuit, an ionic charge battery, an infrared checking circuit and a blood oxygen checking circuit. The mobile wrist strap equipment is a piece of USB equipment with wireless transport protocols, is capable of recording motion, daily life and sleep information of a person, transmitting motion information of the person through a USB and wireless mediums, and monitoring and recording daily action and motion data and sleep information of a user. The mobile equipment displays a motion mode and the completeness of a day motion goal through LEDs without using a piece of LCD (Light Crystal Display) equipment, so that the mobile equipment is very simple and the attachment feeling of wearing is greatly decreased when the mobile equipment is used.

The present invention relates to dielectrically positive liquid-crystalline media comprising in each case one or more compounds of the three formulae IA, IB and IC: in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.

The invention relates to optical devices for producing and/or transforming polarised electromagnetic emission by means of anisotropic absorption and/or optical rotation effects and/or birefringence and can be used as different polarizers (dichroic, reflecting), lagging layers (retarders), liquid-crystal displays and indicators and also for producing polarising glass for building construction and for sun and antiglare glasses, masks, aprons and faceplates. The inventive optical device is based on at least one molecularly oriented layer of a low-molecular or oligomeric dichroic material which can form a stable lyotropic liquid crystal structure. The projection of at least one anisotropically absorbing fragment of a molecule of the dichroic material on the surface of the molecularly oriented layer of a dipole moment of optical transition is disposed in a parallel position to the optical axis of the molecularly oriented layer at least within several ranges of wavelength of the electromagnetic emission.

A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T1) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlight light guide plate (L), and a reflection plate (R) having a repetitive slope structure is disposed on the other surface of the sidelight type backlight light guide plate (L). The invention light source is less in absorption loss due to repetition of light reflection and the like.

A TFT array substrate is provided, which blocks effectively the light traveling toward the active layers of the TFTs. A patterned first light-shielding layer is formed between a transparent plate and TFTs in such a way as to overlap with the active layers of the TFTs. A patterned third light-shielding layer is formed to cover the TFTs on the opposite side to the plate with respect to the TFTs. The third light-shielding layer has the first parts extending along the rows of the matrix and the second parts extending along the columns thereof. A patterned second light-shielding layer is formed between the first light-shielding layer and the TFTs. The second light-shielding layer has a light-absorbing property, which absorbs the light entering the inside of the substrate. A patterned fourth light-shielding layer, which has a light-absorbing property, may be additionally provided between the TFTs and the third light-shielding layer.

The present invention provides a field sequence liquid crystal display device and driving method thereof. The LCD device contains a liquid crystal panel, a back light source, a scan driver and a data driver, wherein the liquid crystal panel is divided into a plurality of areas, each area contains a plurality of scan lines, each area meanwhile respectively scans and controls pixel rows in every area; in each scan period, at least one pixel row of the upper and lower areas are scaned and controlled at the same time, and in the scan period, the image data are respectively transmitted to at least one pixel row of the upper and lower areas. The present invention can provide sufficient conducting time for every row transistor gate, and cut short scanning time of the entire TFT panel, which is propitious to ensure opening rate of the panel, can realize high-contrast and high brightness of the display panel, and provides furthermore wide prospect for the development of the LCD device.

The invention discloses an array substrate of a fringe-field-switching-type crystal display device. The array substrate comprises a plurality of data lines, a plurality of grid lines, pixel electrodes, first public electrodes and second public electrodes, wherein the grid lines and the data lines are arranged in a crossed mode to define pixel regions, the pixel electrodes are arranged in the pixel regions, the first public electrodes are formed between the data lines and the pixel electrodes, the positions, corresponding to the data lines, of the first public electrodes are hollowed out, the second public electrodes and the pixel electrodes are located on the same layer and the second public electrodes are overlapped with the data lines. According to the array substrate, stray capacitance between the first public electrodes and the data lines is reduced, signal transmission delay is shortened, and power consumption is lowered. Meanwhile, due to the arrangement of the second public electrodes, interference brought to the pixel electrodes by the data lines is shielded, stray capacitance of the pixel electrodes between the adjacent pixel regions is also reduced, interference of the pixel electrodes between the adjacent pixel regions is effectively absorbed, and the quality of displayed frames is improved.

The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formula II in which the parameters have the respective meanings indicated in Claim 1, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II.

For increasing the illumination efficiency to a liquid-crystal display element, an illuminating apparatus has a reflector for reflecting light from a light source, a negative meniscus lens, which is convex on the light source side, a first lens array unit of lens elements, a second lens array unit of lens elements, which is conjugate with the light source, and an optical polarization converting element in the stated order along a traveling direction of the light from the light source. The illuminating apparatus illuminates the liquid-crystal display element through the optical polarization converting element.

A backlight unit provides white light for a display device. A light emitting unit may include light emitting diodes (LEDs). The light emitting unit may be combined with a power supplying unit and a current balancing unit to improve the white balance of the light emitted from the LEDs and simplify the circuitry of the backlight unit. The light emitted from the light emitting unit may be balanced due in part to the current balancing unit.

The invention provides a method and a device for detecting cloud pattern defects of a liquid crystal display panel, wherein the method comprises the following steps: 1, acquiring sample images of theliquid crystal display panel to be detected; 2, according to the sample images, fitting out background images corresponding to the sample images by using a B spline least square method; and 3, comparing the sample images with the background images so as to obtain images of the cloud pattern defects. The device for detecting the cloud pattern defects of the liquid crystal display panel comprises asample image acquisition module, a background image fitting module and a defect image acquisition module. The method and the device for detecting the cloud pattern defects of the liquid crystal display panel can improve the efficiency and the accuracy of detecting the cloud pattern defects of the liquid crystal display panel, and can acquire ideal images of the cloud pattern defects.

A liquid crystal display device (100) includes: a touch panel (101); and a color filter substrate (102) having (i) a first surface which faces the touch panel (101) and (ii) a second surface which is opposite from the first surface and on which at least one black matrix (15) is provided, the touch panel (101) including an Al layer (13c) that has a light blocking property, and in order to block light which enters the color filter substrate (102) from the second surface side and then leaks from a vicinity of the at least one black matrix (15) toward the touch panel (101), the Al layer (13c) being provided on the touch panel (101) so that a part of the Al layer (13c) and a part of the at least one black matrix (15) overlap each other when the Al layer (13c) is seen from the touch panel (101) side.

The present invention relates to the use of LC (liquid-crystal) compounds and LC media comprising them in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.

The invention relates to the light-emitting diode (LED) technology field, namely an LED lamp plate structure with a bonded holdfast and a productive technology. Two metal plates which are not mutually and electrically connected are used as the positive connecting terminal and the negative connecting terminal of an LED lamp, a bowl-cup-shaped groove with or without through-hole is punched on the middle of one of the polar plates, an LED chip is arranged on the middle portion of the groove, the positive polar and the negative polar of the LED chip are respectively connected electrically with the connecting terminals of the metal plates, a transparent cover is mounted on the outer side of the LED chip, a layer of fluorescent powder is arranged or is not arranged between the LED chip and the transparent cover, and the LED lamp is welded on a positive and negative metal layer of a PCB circuit of a base plate by a SMT automatic insertion bonding machine after integral light splitting. The invention has the advantages of excellent radiating effect, large light flux, long service life, low productive cost, and favorable compatibility of color-temperature, which can be used to produce various lighting lamps, light source modules, back light of an LED crystal display, etc.

A display system includes a display panel having a plurality of pixel units, each of the pixel units having first and second divided pixel parts; a first driver for applying a first gate signal to the first divided pixel part; and a second driver for applying a second gate signal to the second divided pixel part, wherein the first and second drivers are integrally formed in the display panel and apply the first and second gate signals to be at least partially time-overlapped through independent driving.

A method for producing a thermoplastic film, comprising cooling and solidifying a filmy thermoplastic melt resin, by holding it between a metallic presser and a metallic casting roll for cooling; wherein the temperature of the filmy thermoplastic resin just before being held between the metallic presser and the casting roll for cooling is from Tg+20° C. to Tg+90° C. and a difference between a surface temperature (Tt) of the metallic presser and a surface temperature (T1) of the casting roll for cooling satisfies the formula (1) and a contact length Q satisfies the following formula (2)

0.5° C.≦T1−Tt≦20° C.   (1)

0.1 cm≦Q≦8 cm   (2)

The method provides a thermoplastic film having high thickness accuracy and surface smoothness.

A iquid crystal display apparatus that comprises: a liquid crystal display panel that displays a picture; a plurality of light guide plates that are installed on a rear of the liquid crystal display panel and are spaced from each other; and a back light assembly with a lamp assembly that emits light toward each light guide plate. As described above, the present invention provides the back light assembly and the liquid crystal display apparatus improving the brightness, reducing the thickness, removing the bright lines and the waterfall on the liquid crystal display panel, and lowering the manufacturing cost.

This invention discloses a sort of liquid crystal display that the chromatic film is above the thin film transistor, and it consists of the nether baseboard, the grating line, the grating pole, the thin film transistor is formed above the grating pole, the data wire, the power pole which connects with the data wire and the corresponding leakage pole are formed above the thin film transistor, the deactivation protective foil covers this baseboard, and it has the bore in the part which is corresponds to the leakage pole, the picture element pole is formed above the deactivation protective foil, and it connects with the leakage pole by the deactivation protective foil, the chromatic filter layer is formed above the picture element pole and the part of the deactivation protective foil, a black matrix is formed above the chromatic filter layer and the deactivation insulated layer, and it from the compensated picture with the chromatic filter layer, the upper baseboard, a common pole which is formed above the nether baseboard, a liquid molecule layer is formed between the upper baseboard and the nether baseboard. This invention discloses the manufacturing method of this crystal display at the same time. This invention advances the penetrant rate and the hatch rate of the liquid crystal display, and it predigests the technique.