A display device includes a substrate including a display part having a first width in a first direction and a pad part protruding from the display part in a second direction crossing the first direction and having a second width in the first direction, the second width being smaller than the first width, and a printed circuit board having a concave-convex shape towards the substrate. As the printed circuit board has the concave-convex shape, a dead space of the display device is reduced.

The present disclosure illustrates a signal transmission apparatus and a display apparatus using the same. The signal transmission apparatus comprises a first flexible printed circuit board electrically connected to a display module and a system, and comprising a port; and a second flexible printed circuit board electrically connected to the display module, and comprising a port connection member, and the port connection member corresponding to the port. The second flexible printed circuit board is electrically connected to the first flexible printed circuit board through the port connection member and the port, and is further electrically connected to the system. The signal transmission apparatus is used to replace the conventional manner of soldering multiple circuit boards for connection, so as to prevent the variation during the soldering process, and reduce errors of the manufacturing process, and improve yield rate of the display product. Furthermore, compared with the soldering manner, the signal transmission apparatus of the present disclosure improves connection strength between multiple circuit boards.

A stretchable substrate according to an embodiment of the present invention comprises a first modulus region which has a first modulus, a second modulus region which is located in a plane direction with respect to the first modulus region and has a second modulus higher than the first modulus, and a third modulus region which is located between the first modulus region and the second modulus region and has an interface modulus which gradually changes between the first modulus and the second modulus, wherein the interface modulus of the third modulus region may be constant in the thickness direction thereof.

The display device includes: a flexible display panel including a display portion in which scanning lines and signal lines cross each other; a supporting portion for supporting an end portion of the flexible display panel; a signal line driver circuit for outputting a signal to the signal line, which is provided for the supporting portion; and a scanning line driver circuit for outputting a signal to the scanning line, which is provided for a flexible surface of the display panel in a direction which is perpendicular or substantially perpendicular to the supporting portion.

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 circuit board, comprising a connector, screw holes and first ground, wherein first ground terminals of the connector and the screw holes are respectively connected to the first ground, so as to carry out electrostatic discharge by means of the first ground; and the first ground is isolated from ground wires on the circuit board.

Provided is a display device, including: an array substrate having a display area and a non-display area at least partially surrounding the display area, and the non-display area includes a step region, and a part of the display area is reused as a fingerprint recognition region; a flexible circuit board bonded to the step region and bent to a side of the array substrate facing away from a light-exiting direction of the display device, and the flexible circuit board includes a bent portion facing towards a side surface of the array substrate, and the bent portion includes a bent sub-portion, which is tilted towards the display area along the light-exiting direction of the display device; and at least one light source arranged on the bent sub-portion of the flexible circuit board, and light emitted from the at least one light source is transmitted towards the fingerprint recognition region.

In an embodiment, an electronic device may include a housing including a hinge module, a first housing, and second housing. The first and second housings are rotatably coupled to each other via the hinge module to be in a folded state or an unfolded state. The electronic device may further include a flexible display, at least one conductive pattern disposed in the first housing, at least one conductor disposed at a position in the second housing corresponding to the at least one conductive pattern such that the at least one conductor is capacitively coupled to the conductive pattern when the electronic device is in the folded state, and a wireless communication circuit electrically connected to the at least one conductive pattern in the first housing. Other embodiments are also possible.

A display device including a flexible display panel and a roller disposed on a side portion of the flexible display panel to wind the flexible display panel, in which the flexible display panel includes a first substrate including a first base substrate having a display region and a non-display region adjacent to each other, and a light emitting element layer including light emitting elements disposed on the display region, a second substrate including a second base substrate opposing the first base substrate, and a color conversion layer disposed on the second base substrate and corresponding to each light emitting element, and an adhesive filling layer disposed in the display region to form a cell gap between the first and second substrate, and disposed in the non-display region to be in contact with the first and second base substrates to couple and seal the first and second base substrates.

A display panel including a substrate, multiple display pixels, an encapsulation structure, and an auxiliary layer is provided. The substrate includes a display region, a bendable region, and a buffer region positioned therebetween. The display pixels are disposed in the display region. The encapsulation structure is overlapped with the display region and covers the display pixels. The auxiliary layer is overlapped with the bendable region and has a top surface. A first height is included between a top surface of the auxiliary layer and a surface of the substrate. The auxiliary layer and the encapsulation structure define a recess overlapped with the buffer region. A second height is included between a bottom surface of the recess positioned in the buffer region and the surface of the substrate. A difference between the first height and the second height is greater than 0 μm and less than or equal to 4 μm.