521results about How to "Improve image display quality" patented technology

A color display device, comprising: an array of subpixels of at least four different colors, including at least two relatively higher luminous color subpixels and at least two relatively lower luminous color subpixels, wherein the subpixels are arranged into groups forming at least two distinct types of pixels, each pixel type including the two relatively higher luminous color subpixels and at least one of the two relatively lower luminous color subpixels, and wherein the pixel types are arranged in a pattern such that the relative locations of the two relatively higher luminous color subpixels in each pixel is repeated in adjacent pixels, and the relative location of at least one of the two relatively lower luminance color subpixels is not repeated in at least one adjacent pixel. Various embodiments of the invention enable color display devices with improved image display quality, with both the appearance of jagged lines and the appearance of banding reduced simultaneously.

A display device includes a display panel, a touch screen panel and a receiving container. The display panel displays an image. The touch screen panel is spaced apart from the display panel. The receiving container receives the display panel and has a venting part facing a side surface of the display panel to reduce a pressure difference between a pressure in a space between the display panel and the touch screen panel of the display device and a pressure exterior to the display device.

A backlight device is divided into multiple regions, and has a configuration in which light emitted from a light source of each of the regions is allowed to leak to other regions. A maximum gradation detector detects a maximum gradation of a regional image signal displayed on each of the regions of the liquid crystal panel. An image gain calculator obtains a gain to be multiplied to each regional image signal. An emission luminance calculator obtains an emission luminance of light to be emitted by each light source, by using an operation expression according to the emission luminance of light to be emitted by the backlight device. At this time, if the emission luminance takes a negative value as a result of calculation, the emission luminance calculator makes a correction so that the emission luminance can take a value equal to or greater than 0.

A pixel circuit and a driving method thereof are provided. The pixel circuit includes a pixel capacitor, a storage capacitor, a first transistor and a second transistor. A common node is between the storage capacitor and the pixel capacitor. The first transistor is electrically connected between a data line and the common node, and a gate thereof is electrically connected to a first gate line. The second transistor is electrically connected between the common node and a gray level voltage, and a gate thereof is electrically connected to a second gate line. The first gate and the second gate line are adjacent.

A backlight assembly includes first and second backlight units independently operating based on driving modes, and a light blocking member interposed between the first and second backlight units. The first backlight assembly includes a first light source generating and supplying a first light to a main display part of a display panel in a main mode and turned-off in a sub mode. The second backlight assembly includes a second light source generating and supplying a second light having different color from the first light to a sub display part of the display panel in a main mode and a sub mode.

A dynamic Gamma correction circuit, method thereof and a panel display apparatus are provided. The panel display apparatus has a timing controller, a dynamic Gamma correction circuit, a display panel and a display driving circuit. The timing controller receives a first image data and output a second image data. The dynamic Gamma correction circuit receives and analyzes the first image data so as to correct and output a plurality of Gamma voltages. The display driving circuit electrically connects to the display panel, the timing controller and the dynamic Gamma correction circuit for receiving the second image data and the Gamma voltage so as to drive the display panel.

A liquid crystal display includes a liquid crystal panel having a plurality of pixels, a lookup table which stores information about a plurality of digital common voltages, each of the plurality of digital common voltages corresponding to at least one gray value, a timing controller which analyzes gray characteristics of image signals to be displayed on the liquid crystal panel and which selects one of the digital common voltages based on an analysis result, and a common voltage generator which generates an analog common voltage in response to the digital common voltage selected by the timing controller and which supplies the analog common voltage to the liquid crystal panel.

The invention discloses a method for manufacturing a WOLED (White Organic Light Emitting Diode), the WOLED and display equipment. The method comprises the following steps: forming an array substrate comprising an anode array on a substrate based on a composition process and forming a color filter substrate based on the composition process, including depositing a transparent organic thin film and a reflective metal thin film on the array substrate in sequence; patterning the reflective metal thin film to remove a metal thin film above an anode electrode; etching the transparent organic thin film by taking the patterned metal thin film as a mask to expose the anode electrode so as to form a pixel definition pattern; evaporating an organic light emitting unit and a cathode on the array substrate on which the pixel definition pattern is formed in sequence; and attaching the array substrate comprising the organic light emitting unit and the cathode with the color filter substrate to form the WOLED. According to the method, the light leakage phenomenon of the WOLED existing in the prior art can be avoided better, and the image display quality of the display equipment is improved.

A backlight device (3) includes: a light guide plate (32); a chassis (31) on which the light guide plate (32) is mounted; a frame member (35) having the light guide plate (32) held between the chassis (31) and the frame member (35); a spot light source (36) arranged near a side surface of the light guide plate (32); a flexible printed circuit board (37) on which the spot light source (36) is mounted; and a heat dissipation plate (31a) (part of the chassis (31)) bonded through a double-faced adhesive (38) to the flexible printed circuit board (37). The frame member (35) is provided with a protrusion portion (351) that is in contact with the flexible printed circuit board (37) and that presses the flexible printed circuit board (37) onto the heat dissipation plate (31a), and a tip portion of the protrusion portion (351) is so tapered as to be located apart from the flexible printed circuit board (37).

The invention belongs to the field of LED (light-emitting diode) drive control, and provides a blanking control circuit for LED (light-emitting diode) display screens and an LED drive chip. According to the invention, by adopting the blanking control circuit (comprising a time-sequence control module and a blanking module) for the LED (light-emitting diode) display screens, in the line scanning process of an LED display screen, the blanking module charges parasitic capacitors in each line of the LED display screen in a time gap generated by scanning every two lines of LEDs so to achieve the purpose of effectively eliminating a smearing phenomenon; meanwhile, a drive circuit module realizes the accurate constant current control on each line of LEDs on the LED display screen, so that the image display quality of the LED display screen is improved, thereby solving the problem that in the prior art, the display quality of the LED display screen is low because the accurate constant current control on LEDs can not be realized.

A display drive integrated circuit includes a frame buffer, an output selector and a timing controller. The output selector selectively outputs one of image data read from the frame buffer and image data transmitted from a source external to the display drive integrated circuit. The timing controller controls output of the image data read from the frame buffer to the display panel in a self-refresh mode, and controls internal display timing to track external display timing when the display drive integrated circuit exits from the self-refresh mode to control the output selector to output the image data transmitted from the source to the display panel when the internal display timing is synchronized to the external display timing.

To provide an antiglare and antireflection film having sufficiently high antireflection performance and at the same time, having excellent image display quality. An antiglare and antireflection film comprising a transparent support and at least one antiglare hard coat layer, wherein the at least one antiglare hard coat layer comprises a first light-transmissive particle having an average particle size of 60% to less than 95% based on the thickness of the antiglare hard coat layer, and a second light-transmissive particle having an average particle size of 105% to less than 140% based on the layer thickness.

A liquid crystal display (LCD) device includes a back light module, a LCD panel and a front frame. The back light module includes a metal back plate, a light-guiding plate, a reflection cover, a light source and a rubber frame. The light-guiding plate and the reflection cover are disposed inside the metal back plate, and the light-guiding plate has a light incident surface, a light emission surface and a side surface connected to the light emission surface. The reflection cover is located beside the light incident surface, and the light source is disposed therein. The rubber frame is disposed on the metal back plate and includes a body and a light-shielding portion connected thereof. The light-shielding portion is disposed between the side surface and the metal back plate. The front frame and the metal back plate are assembled together and together with the rubber frame, clamp the LCD panel.

An image display device includes luminescence pixels arranged in rows and columns. The image display device includes a first signal line and a second signal line, first control lines, and at least two drive blocks. Each drive block is composed of luminescence pixels in at least two of the rows. Each luminescence pixel includes a luminescence element and a current controller. Each of the luminescence pixels that belong to a k^th drive block further includes a first switch provided between the first signal line and the current controller. Each of the luminescence pixels that belong to a (k+1)^th drive block further includes a second switch provided between the second signal line and the current controller. Each of the first control lines is connected to all of the luminescence pixels in one of the drive blocks and not connected to the luminescence pixels in a different drive block.

A display apparatus includes a luminance compressing section, a luminance extending section, and a W calculating section. The luminance compressing section subjects three color signals to luminance compression according to a luminance in a preceding frame, and outputs compressed color signals. The luminance extending section outputs luminance extended and converted color signals of respective three colors. Each of the luminance extended and converted color signals is obtained by subtracting a corrected minimum luminance value from a luminance extended color signal which is obtained by subjecting the compressed color signal to luminance extension at a luminance extending rate S in accordance with a function F(t). The function F(t) has as a variable a ratio t of a minimum luminance value to a maximum luminance value of the compressed color signals. The corrected minimum luminance value is obtained by multiplying the minimum luminance value by a coefficient k. The W calculating section outputs the minimum luminance value as a white signal. The function F(t) has a constant according to light emitting efficiencies of four color picture elements. The coefficient k is set so that a luminance of the W (white) color signal becomes equal to or less than a minimum luminance of the luminance extended and converted color signals of the three colors.

In a backlight assembly and a liquid crystal display apparatus, the backlight assembly has lamps parallel to each other to emit a light, a receiving container having a bottom portion and a side portion to receive the lamps, and a mold member coupled to the receiving container to cover the ends of the lamps. The mold member has a reflecting face having a diffusion pattern that reflects the light from the lamps and an upper face extending from the reflecting face in a plane substantially parallel to the bottom portion. Thus, a shadow portion of the backlight assembly may be removed, to thereby enhance image display quality of the liquid crystal display apparatus.