Abstract:
Light-emitting elements have a problem that their light-extraction efficiency is low due to scattered light or reflected light inside the light-emitting elements. The light-extraction efficiency of the light-emitting elements needs to be enhanced by a new method. According to the present invention, a light-emitting element includes a first layer generating holes, a second layer including a light-emitting layer for each emission color and a third layer generating electrons between an anode and a cathode, and the thickness of the first layer is different depending on each layer including the light-emitting layer for each emission color. A layer in which an organic compound and a metal oxide are mixed is used as the first layer, and thus, the driving voltage is not increased even when the thickness is increased, which is preferable.
Abstract:
There has been a problem that difference in refractive index between an opposite substrate or a moisture barrier layer provided thereover, and air is maintained large, and light extraction efficiency is low. Further, there has been a problem that peeling or cracking due to the moisture barrier layer is easily generated, which leads to deteriorate the reliability and lifetime of a light-emitting element. A light-emitting element comprises a pixel electrode, an electroluminescent layer, a transparent electrode, a passivation film, a stress relieving layer, and a low refractive index layer, all of which are stacked sequentially. The stress relieving layer serves to prevent peeling of the passivation film. The low refractive index layer serves to reduce reflectivity of light generated in the electroluminescent layer in emitting to air. Therefore, a light-emitting element with high reliability and long lifetime and a display device using the light-emitting element can be provided.
Abstract:
It is an object to provide a light-emitting device which has high power efficiency and high light-extraction efficiency and emits light uniformly in a plane. It is another object to provide a manufacturing method of the light-emitting device. It is another object to provide a lighting device including the light-emitting device. One embodiment of the present invention provides a light-emitting device which includes: a first electrode provided over a substrate; a layer containing a light-emitting organic compound provided over the first electrode; an island-shaped insulating layer provided over the layer containing the light-emitting organic compound; an island-shaped auxiliary electrode layer provided over the island-shaped insulating layer; and a second electrode having a property of transmitting visible light provided over the layer containing the light-emitting organic compound and the island-shaped auxiliary electrode layer.
Abstract:
The present invention provides a light-emitting device including a light-emitting element over a substrate, the light-emitting element is partitioned from an adjacent light-emitting element by a partition wall, the light-emitting element comprising a first electrode, a layer formed over the first electrode, a light-emitting layer formed over the layer and a second electrode formed over the light-emitting layer, the layer contains an inorganic compound, an organic compound and a halogen atom, the partition wall contains the inorganic compound and the organic compound, and the layer. The light-emitting device provides higher reliability and fewer defects.
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 display device with a wide viewing angle is provided. A display device with a high aperture ratio is provided. The display device includes a first display element, a second display element, and an insulating layer. The first display element includes a first pixel electrode configured to reflect visible light. The second display element is configured to emit visible light. The second display element includes a second pixel electrode and a common electrode. The first pixel electrode is positioned on an opposite side of the insulating layer from the second pixel electrode. The common electrode is positioned on an opposite side of the second pixel electrode from the insulating layer. A shortest distance X between a first plane and a second plane is longer than or equal to 500 nm and shorter than or equal to 200 μm. The first plane includes a plane of the first pixel electrode on the insulating layer side in a display region of the first display element, and the second plane includes a plane of the common electrode on the insulating layer side in a display region of the second display element.
Abstract:
A yield in the step of bonding two members together is improved. A bonding apparatus includes a stage capable of supporting a first member having a sheet-like shape, a fixing mechanism capable of fixing one end portion of a second member having a sheet-like shape so that the second member overlaps with the first member, and a pressurizing mechanism capable of moving from a side of the one end portion of the second member to a side of the other end portion and spreading a bonding layer under pressure between the first member and the second member. The first member and the second member are bonded to each other.
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:
A display device with a wide viewing angle is provided. A display device with a high aperture ratio is provided. The display device includes a first display element, a second display element, and an insulating layer. The first display element includes a first pixel electrode configured to reflect visible light. The second display element is configured to emit visible light. The second display element includes a second pixel electrode and a common electrode. The first pixel electrode is positioned on an opposite side of the insulating layer from the second pixel electrode. The common electrode is positioned on an opposite side of the second pixel electrode from the insulating layer. A shortest distance X between a first plane and a second plane is longer than or equal to 500 nm and shorter than or equal to 200 μm. The first plane includes a plane of the first pixel electrode on the insulating layer side in a display region of the first display element, and the second plane includes a plane of the common electrode on the insulating layer side in a display region of the second display element.
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.