Abstract: Provided is a display system or a display device that is suitable for increasing in size. The display system includes a first display panel, a second display panel, a detection means, and a compensation means. The first display panel includes a first display region. The second display panel includes a second display region. The first display region and the second display region include a first region where they overlap. The detection means has a function of detecting the size of the first region. The compensation means has a function of compensating an image displayed on the first display region in accordance with the change in the size of the first region.

Abstract: A highly reliable display device. A first flexible substrate and a second flexible substrate overlap each other with an element positioned therebetween. A periphery of the overlapped first and second substrates is covered with a high molecular material having a light-transmitting property. The high molecular material is more flexible than the first substrate and the second substrate. As the element, for example, an EL element can be used.

Abstract: A display device suitable for increasing in size, a display device where display unevenness is suppressed, or a display device that can display an image on a curved surface is provided. The display device includes a first display panel, a second display panel, a first adhesive layer, and a substrate. The first and second display panels each include a first region, a second region, and a barrier layer. The barrier layer includes a portion overlapping with the first region and a portion overlapping with the second region. The first region includes a region transmitting visible light. The second region can display an image. The barrier layer contains an inorganic insulating material and includes a region in contact with the first adhesive layer and a region with a thickness of 10 nm to 2 ?m. The display device includes a region where the substrate, the first adhesive layer, the first region of the second display panel, and the second region of the first display panel overlap each other.

Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.

Abstract: A highly reliable display device. A first flexible substrate and a second flexible substrate overlap each other with a display element positioned therebetween. Side surfaces of at least one of the first substrate and the second substrate which overlap each other are covered with a high molecular material having a light-transmitting property. The high molecular material is more flexible than the first substrate and the second substrate.

Abstract: To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. In a display device, a plurality of display panels are arranged to partly overlap one another. In two of the overlapping display panels, a display panel positioned on the display surface side includes a region transmitting visible light that is adjacent to a display portion, and the region transmitting visible light overlaps with a pixel of a display panel positioned on the lower side. Furthermore, in at least a display portion of the display panel placed on the lower side, an aperture ratio of the pixel overlapping with the region transmitting visible light of the display panel on the upper side is higher than an aperture ratio of another pixel.

Abstract: To provide a display device that gives a viewer a strong stereoscopic effect or sense of depth in a two-dimensional image and a display device that gives a viewer a natural stereoscopic effect or sense of depth in a two-dimensional image, a display device including a frame portion and a display portion which has a display surface on a frame portion side and is located so as to be apart from the frame portion with a distance therebetween, in which the display portion overlaps with an opening of the frame portion, and an end portion of the display portion overlaps with the frame portion, is provided. In addition, a structure in which a corner of an inner frame of the frame portion has curvature or a structure in which the size of the inner frame of the frame portion is variable is added to the display device.

Abstract: To provide a display device that gives a viewer a strong stereoscopic effect or sense of depth in a two-dimensional image and a display device that gives a viewer a natural stereoscopic effect or sense of depth in a two-dimensional image, a display device includes a frame portion, and a display portion which has a display surface on a frame portion side and is located so as to be apart from the frame portion with a distance therebetween. The display portion overlaps with an opening of the frame portion, and an end portion of the display portion overlaps with the frame portion. The distance between the frame portion and the display portion is variable.

Abstract: To provide a display device that gives a viewer a strong stereoscopic effect or sense of depth or a natural stereoscopic effect or sense of depth in a two-dimensional image, a display device including a display portion having a curved surface is provided. The display portion may be bent in a horizontal direction or a vertical direction. Alternatively, the display portion may have a convex surface or a concave surface on a display surface side. The display device may include a frame portion. A display device including a frame portion and a display portion which has a display surface on a frame portion side, is located so as to be apart from the frame portion with a distance therebetween, and has a curved surface, in which the display portion overlaps with an opening of the frame portion, and an end portion of the display portion overlaps with the frame portion, is provided.

Abstract: A seal structure for an electronic control device having a circuit board housed in a watertight space a housing that is formed by fitting a plurality of fitting members together, has first and second seal portions which are formed at a fitting surface portion between the fitting members that are fitted together. One side of a pair of the fitting members of each of the first and second seal portions is provided with a seal groove, the other side is provided with a protruding line. An auxiliary seal groove and an auxiliary protruding line are formed on opposing surfaces of the seal groove and the protruding line at a merged part where the first and second seal portions meet each other. The auxiliary seal groove and the auxiliary protruding line continuously extend from the seal groove up to an end surface of the protruding line.

Abstract: A display device which can display a two-dimensional image that gives a viewer a strong sense of depth or three dimensions is provided. A display device includes a light-transmitting layer with a viewing surface and a convex surface facing each other, and a display region in which a plurality of display elements for displaying an image toward the viewing surface are provided along the convex surface. In the display device, the refractive index of the light-transmitting layer is higher than the refractive index of the atmosphere, and the viewing surface is a surface intersecting the convex surface at three points, or a distance between a foot N of a perpendicular line drawn from a point M on the convex surface to the surface and an intersection P of the perpendicular line with the viewing surface is largest when the point M is at an outermost point.

Abstract: An electronic control device has a circuit board to which, at one side thereof, a connector is fixed; a housing having a pair of connector sandwiching members that sandwich the connector, a part of the connector being exposed to an outside of the housing and a remaining part of the connector and the circuit board being housed in a watertight space of the housing, and one of the connector sandwiching members being set to be higher in rigidity than the other; a seal portion filled with a sealant; and a shift suppression unit having a protruding portion formed at one side of the higher-rigidity connector sandwiching member and the connector and a hollow portion formed at the other side The shift suppression unit suppresses a shift of the connector with respect to the housing by fitting of the protruding portion and the hollow portion together.

Abstract: Seal structure for electronic control device having a seal portion formed between an outer peripheral surface of a connector and an inner peripheral surface of a housing, and provided with a seal groove and a protruding line. The seal portion has a deep bottom portion having a seal groove, a shallow bottom portion whose seal groove is shallower than that of the deep bottom portion, and a connecting portion connecting these deep and shallow bottom portions. Width of the seal groove of the shallow bottom portion is set to be larger than the deep bottom portion As a position of a seal groove of the connecting portion gets closer to the deep bottom portion from the shallow bottom portion, depth of the seal groove of the connecting portion is set to be gradually larger, and width of the seal groove of the connecting portion is set to be gradually smaller.

Abstract: An electronic control device has a circuit board to which, at one side thereof, a connector is fixed; a housing having a pair of connector sandwiching members that sandwich the connector, a part of the connector being exposed to an outside of the housing and a remaining part of the connector and the circuit board being housed in a watertight space of the housing, and one of the connector sandwiching members being set to be higher in rigidity than the other; a seal portion filled with a sealant; and a shift suppression unit having a protruding portion formed at one side of the higher-rigidity connector sandwiching member and the connector and a hollow portion formed at the other side The shift suppression unit suppresses a shift of the connector with respect to the housing by fitting of the protruding portion and the hollow portion together.

Abstract: Seal structure for electronic control device having a seal portion formed between an outer peripheral surface of a connector and an inner peripheral surface of a housing, and provided with a seal groove and a protruding line. The seal portion has a deep bottom portion having a seal groove, a shallow bottom portion whose seal groove is shallower than that of the deep bottom portion, and a connecting portion connecting these deep and shallow bottom portions. Width of the seal groove of the shallow bottom portion is set to be larger than the deep bottom portion As a position of a seal groove of the connecting portion gets closer to the deep bottom portion from the shallow bottom portion, depth of the seal groove of the connecting portion is set to be gradually larger, and width of the seal groove of the connecting portion is set to be gradually smaller.

Abstract: A seal structure for an electronic control device having a circuit board housed in a watertight space a housing that is formed by fitting a plurality of fitting members together, has first and second seal portions which are formed at a fitting surface portion between the fitting members that are fitted together. One side of a pair of the fitting members of each of the first and second seal portions is provided with a seal groove, the other side is provided with a protruding line. An auxiliary seal groove and an auxiliary protruding line are formed on opposing surfaces of the seal groove and the protruding line at a merged part where the first and second seal portions meet each other. The auxiliary seal groove and the auxiliary protruding line continuously extend from the seal groove up to an end surface of the protruding line.

Abstract: An electronic device including a circuit board onto which an electronic part is installed, a radiating member, and at least one fitting member that fixes the radiating member to the circuit board, the fitting member being formed with a resilient portion that is configured to produce a resilient restoring force and holds the radiating member in a state fixed to the circuit board by the resilient restoring force.

Abstract: An electronic device including a circuit board onto which an electronic part is installed, a radiating member, and at least one fitting member that fixes the radiating member to the circuit board, the fitting member being formed with a resilient portion that is configured to produce a resilient restoring force and holds the radiating member in a state fixed to the circuit board by the resilient restoring force.