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5185 results about "Black matrix" patented technology

Tiled electronic display structure

A tiled display device is formed from display tiles having picture element (pixel) positions defined up to the edge of the tiles. Each pixel position has an organic light-emitting diode (OLED) active area which occupies approximately 25 percent of the pixel area. Each tile includes a memory which stores display data, and pixel driving circuitry which controls the scanning and illumination of the pixels on the tile. The pixel driving circuitry is located on the back side of the tile and connections to pixel electrodes on the front side of the tile are made by vias which pass through portions of selected ones of the pixel areas which are not occupied by the active pixel material. The tiles are to formed in two parts, an electronics section and a display section. Each of these parts includes connecting pads which cover several pixel positions. Each connecting pad makes an electrical connection to only one row electrode or column electrode. The connecting pads on the display section are electrically connected and physically joined to corresponding connecting pads on the electronics section to form a complete tile. Each tile has a glass substrate on the front of the tile. Black matrix lines are formed on the front of the glass substrate and the tiles are joined by mullions which have the same appearance as the black-matrix lines. Alternatively, the black matrix lines may be formed on the inside surface of an optical integrating plate and the tiles may be affixed to the integrating plate such that the edges of the joined tiles are covered by the black-matrix lines. A cathodoluminescent tile structure is formed from individual tiles that have multiple phosphor areas, a single emissive cathode and horizontal and vertical electrostatic deflecting grids which deflect the electron beam produced by the single cathode onto multiple ones of the phosphor areas.
Owner:MEC MANAGEMENT LLC +1

High-brightness color liquid crystal display panel employing light recycling therein

Reflective color filters using layers of cholesteric liquid crystals with two different center wavelengths and bandwidths per layer are stacked in two layers to provide colored light for displays. With a two layer stack circularly polarized light of one handedness can be provided. With a two layer stack circulary unpolarized colored light can be provided. With a broadband polarizing filter overlapping other filters in the stack a black matrix can be provided by reflecting all colors and transmitting no light in the overlapping areas. When broadband reflective cholesteric liquid crystals are used two primary colors can be reflected in the same pixel of a display making reflective layers with two reflective portions per layer possible. Color displays having three linear sub-pixels with three primary colors or with four sub-pixels of white, blue, green, and red in a pixel with two colors in a top row and two colors on a bottom row can are made with two colors per layer in two layer stacks. The pixels in the display are arranged such that multiple adjacent sub-pixels in a layer, or row in a layer, with the same color makes the color filters easier to manufacture. Displays using these reflective color filters may have a reflective polarizer for viewing the display at wide angles without color distortion.
Owner:REVEO

Display panel and display device using the same

A liquid crystal display panel includes a counter substrate having a counter electrode and a multi-layered dielectric film both formed thereon, and an array substrate formed with pixel electrodes and thin-film transistors serving as switching elements. A layer of polymer dispersed liquid crystal material containing a UV-curable resin component and a liquid crystal component is sandwiched and sealed between the counter and array substrates. A light shielding film is formed over each thin-film transistor. The multi-layered dielectric film is a laminated structure of alternating thin-films of SiO2 and HfO2. Since the multi-layered dielectric film is of a nature capable of transmitting UV-rays of light therethrough, the UV-curable resin component positioned underneath the multi-layered dielectric film can be cured during the manufacture. Also, since the multi-layered dielectric film is of a nature capable of reflecting light of a visible region, it serves as a black matrix, reflecting the visible light modulated by the display panel. Black beads are used to keep the film thickness of the liquid crystal layer at a predetermined value. Preferably, a dielectric thin-film having a relative dielectric constant smaller than that of the liquid crystal material is formed on signal lines for transmitting signals to the thin-film transistors, to thereby accomplish an electromagnetic shield. Where color filters are to be formed on the pixel electrodes, those color filters may be formed on the signal lines to accomplish the electromagnetic shield.
Owner:GK BRIDGE 1

In-plane switching mode active matrix type liquid crystal display device and method of fabricating the same

An in-plane switching mode active matrix type liquid crystal display device includes a first substrate, a second substrate located opposing the first substrate, and a liquid crystal layer sandwiched between the first and second substrates. The first substrate includes a thin film transistor, a pixel electrode each associated to a pixel to be driven, a common electrode to which a reference voltage is applied, data lines, a scanning line, and common electrode lines. Molecular axes of liquid crystal are rotated in a plane parallel with the first substrate by an electric field substantially parallel with a plane of the first substrate to thereby display certain images. The common electrode is composed of transparent material, and are formed on a layer located closer to the liquid crystal layer than the data lines. The common electrode entirely overlaps the data lines except an area where the data lines are located in the vicinity of the scanning line. The liquid crystal display device further includes a light-impermeable layer in an area where the common electrode entirely overlaps the data lines. The light-impermeable layer is comprised of a black matrix layer having a width smaller than a width of the common electrode.
Owner:NEC LCD TECH CORP

Display panel and display device

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a display module, a fingerprint recognition module, and at least one layer of black matrix, wherein the display module comprises a first substrate and multiple pixel circuits, the first substrate comprises a display region and a non-display region around the display region; multiple pixel circuits are located inside the display region of the first substrate, each pixel circuit comprises multiple thin film transistors, each thin film transistor comprises a grid electrode, a source electrode and a drain electrode; the fingerprint recognition module is formed inside the display region at one side, facing away from the thin film transistor, of the first substrate; the at least one layer of black matrix is arranged between the thin film transistor and the fingerprint recognition module, the black matrix comprises shading areas and an opening area located between the shading areas; the projections of the grid electrode, the source electrode and the drain electrode of the thin film transistor are located inside the projection of the shielding area on the first substrate. An aim of improving the fingerprint recognition precision of the display panel can be achieved by use of the embodiment of the invention.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Wide view angle LCD operable in IPS mode which uses a pixel electrode as a shield to prevent disturbances in the electric field of a display pixel portion of the LCD

The present invention discloses a liquid crystal display device which is arranged by: (A) the first substrate including a plurality of scanning lines and a plurality of signal lines arranged in a matrix form; a common signal line extended in parallel to one of the scanning lines and the signal lines, for applying a reference potential thereto; a pixel electrode; and a thin-film transistor having a source electrode connected to the pixel electrode, a drain electrode connected to the signal line, and a gate electrode connected to the scanning line, the thin-film transistor being formed in an intersection portion between the scanning line and the signal line; (B) the second substrate including a black matrix layer and positioned opposite to the first substrate with sandwiching a liquid crystal layer between the first substrate and the second substrate; and (C) an insulating layer sandwiched between the pixel electrode of the first substrate and the scanning line. While a voltage is applied between the common signal line and the pixel electrode to thereby produce an electric field, a direction of a molecular axis of liquid crystal molecules contained in the liquid crystal layer is rotated within a plane located in parallel to the first substrate so as to perform a liquid crystal display; and further said pixel electrode of the first substrate covers a portion of the scanning lines located in a region other than such a region where the thin-film transistor is formed.
Owner:NEC LCD TECH CORP
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