A display device or an electronic device with high portability and browsability is provided. A display device which includes two display panels that overlap with each other and in which the area of a portion where the two display panels overlap with each other is variable is provided. The larger the area where the two display panels overlap with each other is, the smaller the display device becomes. The first display panel includes a first region that performs display. The second display panel includes a second region that performs display, and a third region that is adjacent to the second region and transmits visible light. When the third region overlaps with the side of a surface which performs display of the first region, display can be performed using a seamless large display region.

A display device or an electronic device with high portability and browsability is provided. A display device which includes two display panels that overlap with each other and in which the area of a portion where the two display panels overlap with each other is variable is provided. The larger the area where the two display panels overlap with each other is, the smaller the display device becomes. The first display panel includes a first region that performs display. The second display panel includes a second region that performs display, and a third region that is adjacent to the second region and transmits visible light. When the third region overlaps with the side of a surface which performs display of the first region, display can be performed using a seamless large display region.

A display device includes a thin film transistor layer, a light-emitting element layer including a plurality of light-emitting elements, each including a first electrode, a function layer, and a second electrode, and each having a different luminescent color. The function layer includes a light-emitting layer and a pair of holding layers sandwiching the light-emitting layer and each including a photosensitive material. One of the first electrode and the second electrode is an anode electrode and the other is a cathode electrode. The function layer includes a hole transport layer provided between the anode electrode and one holding layer of the pair of holding layers, and an electron transport layer provided between the cathode electrode and the other holding layer of the pair of holding layers.

A method of manufacturing a display device includes: the measurement step of sweeping a voltage to light-emitting elements and measuring a current value that flows in the light-emitting elements in response to a voltage value applied; the computation step of computing a first derivative value of the current value with respect to the voltage value, the first derivative value representing voltage dependence of a first derivative of the current value; the peak determination step of determining a peak of the first derivative value; the processing step of processing the light-emitting elements based on a result of the peak determination step; and the attaching step of attaching a housing to the substrate.

A display device having high light-extraction efficiency is provided. A low-power display device is provided. In a red or green pixel included in the display device, a light-emitting element, an optically functional layer, and a wavelength-conversion layer are stacked in this order. The light-emitting element emits blue light, the optically functional layer transmits the blue light and reflects red and green light, and the wavelength-conversion layer converts the blue light into red or green light. The blue light emitted by the light-emitting element passes through the optically functional layer and enters the wavelength-conversion layer, and red or green light is emitted to the outside. The red or green light emitted from the wavelength-conversion layer to the optically functional layer side is reflected by the optically functional layer and emitted to the outside, which improves light-extraction efficiency.

A first side surface (312) is positioned at a light emitting region (142) side. The first side surface (312) is inclined toward the light emitting region (142) with distance from the first surface (102) of the substrate (100). A second side surface (314) is positioned opposite to the first side surface (312). The second side surface (314) is inclined away from the light emitting region (142) with distance from the first surface (102) of the substrate (100). A first upper surface (316) is positioned between the first side surface (312) and the second side surface (314), and is substantially parallel to the first surface (102) of the substrate (100).

A light-emitting device of a transmissive type includes, as subpixels, a red subpixel including a red light-emitting layer, a green subpixel including a green light-emitting layer, and a blue subpixel including a blue light-emitting layer arranged in parallel with one another. The display light-emitting device includes an opaque region that overlaps at least the red subpixel and the green subpixel, each in its entirety, in a plan view and blocks background light, and a transparent region that overlaps at least a portion of the blue subpixel in a plan view and transmits background light.

An object of the present invention is to provide a colored resin composition, which is useful in production of a color filter suitable for an organic EL display device, excellent in low temperature curability, and also excellent in red color reproducibility. The present invention relates to the colored resin composition containing a colorant, a resin, a polymerizable compound, and a polymerization initiator, wherein the colorant is composed of only pigments, and the pigments include C.I. Pigment Violet 29, a red pigment and a yellow pigment.

A display device includes a substrate and a pixel provided on the substrate. The pixel includes a light-emitting portion including a plurality of light-emitting elements and configured to generate light, and a light-exiting portion adjacent to the light-emitting portion. The light-exiting portion includes a first light-reflecting portion provided on an incline on the substrate and configured to receive and reflect the light from the light-emitting portion, and an opening configured to emit the light reflected by the first light-reflecting portion to the outside. At least some of the plurality of light-emitting elements are formed by being layered.

To provide a display device and an electronic apparatus that suppress leakage of a drive current between adjacent light emitting elements. A display device includes: a plurality of light emitting elements having an organic light emitting layer sandwiched between a first electrode disposed for each of the light emitting elements and a second electrode in a lamination direction and arrayed on a plane; and an insulating layer disposed between the first electrodes. At least a part of a film thickness region in the insulating layer contains a positively charged inorganic nitride.