1071results about How to "Improve display quality" patented technology

In a display device 100, a reflective polarizer 110, a polarizer 120, a retarder 130, a liquid crystal panel 140, a polarizer 150, and a backlight 160 are disposed sequentially from the viewing side. When the liquid crystal panel 140 is set in a light blocking state or the backlight 160 is set in an unlit state, the reflection of an outside light “O” turns the display screen into a mirror state. When the backlight 160 is set in a lit state to drive the liquid crystal panel 140, a transmitted light “T” allows a particular display screen to be visually recognized.

An EL element (33) is provided on a first substrate (1) to make it possible to perform both light emission display according to the EL element (33) and reflective display according to a liquid crystal display element. An EL control switching element (17) and a liquid crystal layer switching element (18) are provided on a face of the first substrate (1) positioned on the side of a liquid crystal layer (51). The EL control switching element (17) is connected to an anode electrode (21) or a cathode electrode (24) constituting the EL element (33). By connecting the liquid crystal layer switching element (18) to a display electrode (31) and a reflective electrode (28) constituting a liquid crystal display element, a liquid crystal display element and a light emitting element are integrated in a liquid crystal display device incorporated with the liquid crystal display element therein, so that thinning and weight reduction are achieved considering electrical connection therebetween and both reflective display and transmissive display are made possible.

A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.

It is an object to provide a highly functioned and highly value-added display device and mobile terminal. It is another object to provide a display device and mobile terminal characterized by including a plurality of pixels arranged in a matrix form and a first display screen over one surface of a substrate having a translucency, a second display screen over the opposite surface of the one surface of the substrate, each of the plurality of pixels having a light emitting element for emitting light toward the first display screen and the second display screen, and a first polarizer over one surface of the substrate and a second polarizer over the opposite surface of the one surface of the substrate.

The present invention has a pixel which includes a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.

A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.

A method of mounting a flat panel speaker is provided which is capable of reliably preventing entry of dust and of shortening assembling time. By bonding a gasket member to a diaphragm, by pasting a separator to a gasket member side opposite to the diaphragm and, by sandwiching the diaphragm and the gasket member from both sides, a gasket-attached diaphragm is fabricated. After peeling off a protecting sheet on a rear side of the gasket-attached diaphragm, the actuator module is bonded to the diaphragm. Then, after peeling the separator from the gasket-attached diaphragm, positioning is performed on the diaphragm and the gasket member is bonded to a putting-face of the front case. The entry of dust into a region corresponding to a liquid crystal display panel is blocked by a partitioning portion of the gasket member.

A display apparatus includes: a substrate including display areas and a non-display area disposed around edges of the display areas; gate lines disposed in the display areas; data lines disposed in the display areas and crossing the gate lines; pixels disposed in the display areas and connected to the gate lines and data lines; and a gate driver disposed in the peripheral area, between the display areas. The gate driver is connected to the gate lines, to output gate signals to the gate lines.

A display device in which interconnection—electrode comprising a Cu alloy film having a lower electrical resistivity than Al alloy and a transparent conductive film are directly connected not by way of a refractory metal thin film, wherein the Cu alloy film contains Zn and/or Mg in a total amount from 0.1 to 3.0 at %, or Ni and/or Mn in a total amount from 0.1 to 5 at %, thereby enabling the direct connection at low resistivity between the Cu alloy film and the transparent electrode without using a barrier metal, and giving high display quality in a case of application, for example, to a liquid crystal display.

A head-mounted display including a device body, an assembly and a projection device is provided. The assembly includes a reflective surface, and is pivoted on the device body. The projection device includes a liquid crystal lens element, and is disposed inside the device body. The projection device is used to project an image beam on the assembly, and the assembly reflects the image beam to a projection target. The projection device uses the liquid crystal lens element to calibrate an aberration generated from the reflective surface of the assembly.

A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines to which a data voltage is supplied, a plurality of gate lines to which a gate pulse is supplied, and a plurality of liquid crystal cells, a data drive circuit to invert a polarity of the data voltage in response to a polarity control signal and to output the data voltage to the data lines in response to a source output enable signal, a gate drive circuit to supply the gate pulse to the gate lines, and a POL/SOE logic circuit to invert the polarity control signal for every frame period except at Nth-multiple frame period (where N is a positive integer), wherein the POL/SOE logic circuit controls the polarity control signal at every Nth-multiple frame period such that the polarity of the data voltage is the same as the previous frame period and controls a pulse width of the source output enable signal at every Nth-multiple frame period to be longer than for the other frame periods.

The invention provides a picture flicker improvable liquid crystal display device and a relevant driving method thereof. The method adjusts the chamfering amplitude of a grid driving signal to reduce the picture flicker and comprises the steps of respectively providing a first grid driving signal and a second grid driving signal according to parasitic capacitance values of a first pixel and a second pixel. The first grid driving signal comprises a waveform descending edge descending from a high potential to a first potential, and the second grid driving signal comprises a waveform descending edge descending from a high potential to a second potential; when the parasitic capacitance value of the first pixel is larger than that of the second pixel, the first potential is lower than the second potential; when the parasitic capacitance value is substantially equal to that of the second pixel, the first potential is substantially equal to the second potential; and when the parasitic capacitance value of the first pixel is less than that of the second pixel, the first potential is higher than the second potential. The invention can effectively eliminate the picture flicker to improve the display quality through adjusting the common voltage.

A 3D image/2D image switching display apparatus is provided with a liquid crystal display unit and first and second lenticular lenses. To display a 3D image, the first lenticular lens is arranged in such a way that the optical axis of the first lenticular lens coincides with the optical axis of the second lenticular lens so that pixels for a left eye display an image for a left eye and pixels for a right eye display an image for a right eye. To display a 2D image, the first lenticular lens is arranged in such a way that the optical axis of the first lenticular lens is shifted from the optical axis of the second lenticular lens by half a lens pitch so that the pixels for the left eye and the pixels for the right eye display the same image independently.

The present invention can realize better display of a dynamic image, and in addition, can make storage capacity of a memory smaller. A data conversion circuit 112 compares display data 102 of an n-th frame from the outside and display data 116 of the (n−1)-th frame stored in the memory 104, to generate a driving data signal 117 to deliver to a driver. Each time when a memory control circuit 103 reads display data q0, q5, q10, q15 corresponding to 20 pixels out of the display data 116 of the (n−1)-th frame, the memory control circuit 103 compresses display data d0–d19 of 20 pixels out of the display data 102 of the n-th frame from the outside to generated d0, d5, d10, d15, and stores the generated data into the same area where the display data q0, q5, q10, q15 of the display data of the (n−1)-th frame have been stored.

A liquid crystal display (“LCD”) capable of improving display quality includes a first insulating substrate, gate wiring lines formed on the first insulating substrate and extending in a first direction, data wiring lines insulated from and crossing the gate wiring lines and extending in a second direction, and pixel electrodes, each of which includes first and second sub-pixel electrodes that are applied with different data voltages from the data wiring lines, in which at least a part of the second sub-pixel electrode overlaps the data wiring lines.

A display device includes a memory which stores gamma data for gamma curves including a first gamma curve and a second gamma curve; a gray voltage generator which generates gray voltages based on the gamma data; a data driver which receives an input image signal from a signal controller and converts the input image signal into a data voltage using the gray voltages; and a display panel including pixels which receives the data voltage and may display an image, where the pixel displays images corresponding to the input image signal during one frame set, one frame set includes consecutive frames, the images displayed by a pixel includes first and second images displayed based on the first and second gamma curves, respectively, a luminance of the first image is not less than a luminance of the second image, and the second image is displayed in two consecutive frames.

In a display substrate having substantially the same resistance between adjacent fan-out parts having an asymmetric structure and a display device having the display substrate, the display substrate has a display region having pixel parts and a peripheral region surrounding the display region. The display substrate further includes a first fan-out part and a second fan-out part. The first fan-out part is formed in the peripheral region, and includes lines of a first group. The second fan-out part has an asymmetric structure with respect to the first fan-out part, and includes lines of a second group. The second fan-out part is adjacent to the first fan-out part. The lines of the second fan-out part have substantially the same resistance as the lines of the first fan-out part. Therefore, image display quality of the display device may be improved. A method of improving display quality of the display device is also provided.

A display apparatus includes a gate driver which sequentially outputs a gate signal at a high state in response to a gate control signal and a data driver which converts image data into a data signal in response to a data control signal. The display apparatus further includes a display panel which includes a plurality of gate lines which sequentially receive the gate signal, a plurality of data lines which receive the data signal and a plurality of pixels connected to the gate and data lines and which receive the data signal in response to the gate signal to display an image. The polarity of the data signal is inverted after the gate signal transitions to a low state.

Detection column wires and detection row wires are configured of thin wires made of a conductive material having light reflectivity, such as a metal or alloy including silver and aluminum. A predetermined plural number of detection column wires are electrically connected to form a plurality of column-direction bundle wires. A predetermined plural number of detection row wires are electrically connected to form a plurality of row-direction bundle wires. A reflected-light distribution pattern is further provided. When viewed in a direction vertical to the surface of the touch screen, the reflected-light distribution pattern includes a curved portion, and the normal lines of the curved portion head for all directions.

A lighting unit includes a reflector, a plurality of light-emitting elements and a controller. The light-emitting elements are respectively provided on the reflector for a plurality of light-emitting regions. The controller supplies a periodic drive signal to each of the light-emitting elements, thereby defining a state of the light-emitting element. The lighting unit illuminates a display panel including a light modulating layer with light that has been emitted from the light-emitting elements. The controller supplies drive signals of substantially different types to at least two of the light-emitting elements.

The invention relates to a flexible display panel and a flexible display device. The display panel comprises a display region and a non-display region, and a bending region is arranged between the display region and the non-display region. The display panel further comprises a flexible substrate, a thin film transistor (TFT) layer, a touch control layer and a signal transmission line; the TFT layer is arranged on the flexible substrate, and in the direction far from the flexible substrate, the TFT layer comprises a semiconductor layer, a grid insulating layer, a grid layer, an interlayer insulating layer and a source-drain metal layer stacked successively; the touch control layer is arranged in the side, far from the flexible substrate of the TFT layer, and comprises a first touch controlmetal layer and a second touch control metal layer; and the signal transmission line comprises two conductor wires arranged in parallel at least, and the conductor wires are arranged in the same layerwith at least two selected from the source-drain metal layer, the first touch control metal layer and the second touch control metal layer. The flexible display panel is less possible of line breaking during bending.

Provided herein are methods and systems for providing an energy efficient display for mobile devices which has the means to locate and track the head movements of viewers and steer focused display light output torward the direction or directions of users without user intervention. The required optical elements for both emissive and non-emissive steered display light output are discussed, as are the elements for head tracking.

Enterprise communication display systems enable life-like images for videoconferencing and entertainment productions. Life-like images appear in a 3D environment where imaged people are visible through specially configured see-through displays. Imaged people can be viewed amongst a reflected foreground. Methods for enterprise-wide deployments for corporate, healthcare, education, theater which includes cinema and government communications, including hotel properties and a property management system are shown. Direct projection see-through screen configurations are created that eliminate unwanted secondary images in the room, conceal exposed projector lenses, reduce lens flare, makes practical multi-use room installations, images conferees among a room environment, enables touch screen interactivity, and utilizes extreme and other types of short throw projectors to reduce cost and bulk of common throw projectors. Of these transparent screens inventive configurations of substantially invisible mesh screens for both front and rear projection are described.

The present invention discloses a stereoscopic display device with a parallax barrier. The parallax barrier includes: a first substrate; a plurality of first electrodes parallel to each other and stretching in one direction on the first substrate; a transparent insulation layer between the first substrate and the first electrodes; a plurality of second electrodes parallel to each other and stretching in one direction on the opposite side against the first electrodes; a common electrode between the second substrate and the transparent insulation layer; and a liquid crystal layer between the common electrode and the second electrodes. In particular, the plurality of first electrodes and second electrodes interlace with each other and each contains partial overlapping in the vertical direction.

Provided is a lateral electric field mode liquid crystal device including: a first substrate; a second substrate; a liquid crystal layer and pixel electrodes and common electrodes. A lateral electric field mode liquid crystal device drives the liquid crystal layer by an electric field generated between the pixel electrodes and the common electrodes, a light shielding layer is formed on a surface of the second substrate disposed close to the liquid crystal layer. A coloring layer is also formed so as to overlap with the pixel electrodes. An overcoat layer protects the coloring layer, and an alignment film is formed. An electrostatic shielding layer is formed of a transparent conductive material on a surface of the overcoat layer.

A liquid crystal mixture for a polymer stability alignment process includes at least a set of first liquid crystal compounds without any double bond, at least a set of second liquid crystal compounds having double bonds, and at least a set of reactive monomers having methacrylate group. The concentration of the second liquid crystal compounds is about 0.1-20% by weight of the total weight of the liquid crystal compounds.

A liquid crystal display according to exemplary embodiments of the present invention is provided in which an additional storage capacitor is formed to a subpixel electrode connected to the dividing switching element, thereby increasing the total storage capacitance. Due to the additional storage capacitor, the kickback voltage difference between two subpixels that may be generated by the additional dividing switching element is eliminated such that the display quality deterioration has been improved by preventing the kickback voltage difference between the two subpixels.

A gate-off-voltage-generating circuit that can enhance display quality at low temperatures, a driving device, and a liquid crystal display having the same are provided. The driving device includes a boost converter to receive and boost a first input voltage, and output a driving voltage and a pulse signal; a gate-on voltage generator to receive the driving voltage and output a gate-on voltage; and a gate-off voltage generator including a first temperature-compensation unit to receive the driving voltage and output a first temperature-dependent variable voltage, the level of which varies according to the ambient temperature, a first voltage follower to receive and transfer the first temperature-dependent variable voltage, and a first charge-pumping unit to shift the first temperature-dependent variable voltage by the amplitude of the pulse signal and output a gate-off voltage.

A liquid crystal display including a plurality of pixels includes a gray voltage generator generating a plurality of gray voltages, a data driver supplying data voltages selected from the gray voltages corresponding to image data to the pixels, a gate driver supplying gate voltages to gate lines of the pixels, a signal controller supplying a first control signal to the gate driver and the image data and a second control signal to the data driver for controlling the image data and comprising a dimming controller, the dimming controller generating a dimming signal based on an average gray of the image data over at least one frame and a common voltage generator generating at least one common voltage based on the dimming signal and applying the common voltage to the pixels. Therefore, the variation of the pixel voltage depending on the gray of the image data is decreased to improve image quality of the LCD.

A display device includes a plurality of pixels including a first capacitor connected between a data line and a first node, a switching transistor connecting the first node and a second node, a first light emitting transistor transmitting a first power source voltage to the second node, a driving transistor having one electrode connected to the second node and controlling a driving current flowing to an organic light emitting diode (OLED), and a reference voltage transistor transmitting a reference voltage to the first node, wherein, when the first power source voltage is applied to the second node through the first light emitting transistor such that a light emitting step in which the OLED emits light is simultaneously performed in a plurality of pixels.