Systems and methods are provided for cover plates for printheads. One embodiment is an apparatus that includes a cover plate for a printhead. The cover plate includes multiple layers of electrically conductive material, a layer of nonconductive ferrite that is sandwiched between the multiple layers, and at least one connector that penetrates through the multiple layers and the layer of nonconductive ferrite to form a conductive pathway for electric current between the multiple layers through the layer of nonconductive ferrite. The cover plate also includes at least one opening that penetrates through the multiple layers and the layer of nonconductive ferrite, and that is configured to align with nozzles of the printhead.

A flip chip interconnection including a circuit board is disclosed. The circuit board includes a substrate, inner leads, a T-shaped circuit line and a dummy pattern. The inner leads, the T-shaped circuit line and the dummy pattern are located on an inner bonding area of the substrate. The T-shaped circuit line includes a main segment, a branch segment and a connection segment that is connected to the main segment and the branch segment. The main segment and the branch segment are extended along a lateral direction and a longitudinal direction, respectively. The dummy pattern is located between the connection segment and the inner leads.

A tape wiring board includes an insulating film on which a semiconductor chip is mounted and metal layers formed on both principal surfaces, respectively, of the insulating film. That one of the metal layers which is formed on a first surface that is one principal surface of the insulating film and on which the semiconductor chip is mounted has a first electrode that is placed near substantially the center of a region on the first surface where the semiconductor chip is mounted.

The present disclosure relates to an anisotropic conductive film, a display device and a reworking method thereof. The anisotropic conductive film comprises: a first resin layer having positively photosensitive characteristics and conductive particles distributed in the first resin layer. Since the first resin layer has positively photosensitive characteristics, it can be decomposed after the exposure process. In this case, when failures occur in the binding of the display panel with the external circuit by the anisotropic conductive film, the first resin layer in the anisotropic conductive film can be decomposed by performing an exposure process on the anisotropic conductive film, so as to separate the external circuit from the display panel for reworking of the display panel. In this way, no heating process is needed, which not only simplifies the reworking procedure, but also is suitable for the reworking of a flexible display panel.

A display device includes: a display panel; an input sensing panel; a display flexible circuit board to control the display panel having an input sensing driving circuit electrically connected to the input sensing panel, the display flexible circuit board being connected to the display panel; and a first pressure sensor disposed adjacent to and extending along a first edge of the display panel, wherein the first pressure sensor is electrically connected to the input sensing driving circuit of the display flexible circuit board.

A display device includes: a display region; a frame region comprising a folding portion, the frame region being disposed around the display region; an outer terminal comprising a first outer terminal and a second outer terminal in the frame region, the first and second outer terminals being disposed sequentially on an outside in such a manner that the first outer terminal is closer to the display region than the second outer terminal is, the outside being more remote from the display region than the folding portion is; a first routing wire crossing the folding portion to electrically connect together the first outer terminal and an inner wire that is disposed in the display region; at least one inner terminal disposed inside the folding portion in the frame region; and a second routing wire that is flexible, the second routing wire electrically connecting at least the second outer terminal out of the first and second outer terminals to the at least one inner terminal without passing through the folding portion.

A display device includes: a display panel; and a first substrate connected to the display panel, wherein the first substrate comprises: a first base substrate; a first wiring layer having a plurality of first signal wirings on the first base substrate; and a first ground wiring layer on the first wiring layer, wherein the first ground wiring layer comprises a mesh pattern area and a non-mesh pattern area, wherein the mesh pattern area comprises a plurality of first mesh patterns and openings surrounded by adjacent first mesh patterns, and the non-mesh pattern area comprises a plurality of second mesh patterns and non-mesh patterns surrounded by adjacent second mesh patterns, wherein the non-mesh patterns are physically connected to the adjacent second mesh patterns.

Performance of a display apparatus is improved. The display apparatus includes: a substrate having a side surface (first side surface); a backlight unit (light supply portion) having a side surface (second side surface); a flexible wiring board having a wiring electrically connected to a terminal (first terminal) and having an insulating film with flexibility covering the wiring; and a double-sided tape. The flexible wiring board is bonded to the side surface of the backlight unit through the double-sided tape.

A display device including a substrate including: a top surface, a bottom surface, and a plurality of side surfaces connecting the top surface and the bottom surface; a signal line disposed on the top surface; a sidewall electrode in electrical contact with the signal line and disposed on a first side surface of the side surfaces; and a connection electrode in electrical contact with the sidewall electrode and disposed on the first side surface.

A display device includes: a display panel; an input sensing panel; a display flexible circuit board to control the display panel having an input sensing driving circuit electrically connected to the input sensing panel, the display flexible circuit board being connected to the display panel; and a first pressure sensor disposed adjacent to and extending along a first edge of the display panel, wherein the first pressure sensor is electrically connected to the input sensing driving circuit of the display flexible circuit board.