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US 7,679,283 B2Granted
EL display device, method of manufacturing the same, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorToru Nimura
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AssigneeSeiko Epson Corporation
InventorToru Nimura
Estimating the term…
An EL display device has first and second pixel electrodes and a counter electrode formed of a transparent conductive film, a sealing-side light-emitting area for extracting light emitted from a light-emitting functional layer from a sealing member formed on the first pixel electrode, a substrate-side light-emitting area for extracting light emitted from the light-emitting functional layer from the substrate is formed on the second pixel electrode, a light-shielding layer which is adjacent to the first pixel electrode in the sealing-side light-emitting area and the counter electrode in the substrate-side light-emitting area is formed, and the light-emitting functional layer emits light independently in the sealing-side light-emitting area and the substrate-side light-emitting area.
An EL display device comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Active-matrix OLED [AMOLED] displays: comprising two independent displays, e.g. for emitting information from two major sides of the display
Arrangements for extracting light from the devices: comprising reflective means
Organic electric solid-state devices
About Less than a month of term left · ends 25 Oct 2026 (estimated)
The present invention relates to an electroluminescent (EL) display device, to a method of manufacturing the EL display device, and to an electronic apparatus.
In the related art, there has been proposed a double-sided light-emitting type electroluminescent display device (hereinafter, referred to as ‘EL display device’) which emits light onto both transparent cathode and anode electrodes (e.g., see JP-A-2001-332392).
However, in the EL display device disclosed in JP-A-2001-332392, there has been a problem in that since an opposite side of the EL display device can be seen, a displayed image is reversed on a front side and a rear side of a panel, thus different images cannot be simultaneously displayed on the front side and the rear side of the panel.
The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.
FIG. 1 is a plan view schematically illustrating the configuration of an EL display device according to the invention.
FIG. 2 is an equivalent circuit diagram of a sub-pixel in the EL display device according to the invention.
Exemplary embodiments of an EL display device and an electronic apparatus according to the invention will now be described in detail with reference to the accompanying drawings. The invention is not limited to the exemplary embodiments, but various changes in form and details may be made therein without departing from the scope of the invention. In the drawings, individual layers and components are depicted in different scales so that they can be easily recognized in the drawings.
EL Display Device
FIG. 1 is a plan view schematically illustrating a configuration of an EL display device 1. The EL display device according to the present embodiment uses an electroluminescent material, which is an example of an electro-optical material, particularly, an organic EL material. In the EL display device, the organic EL material emits light by an active matrix method using a Thin Film Transistor (TFT).