Light-emitting device and electronic apparatus
A technology of light-emitting device and light-emitting layer, applied in photovoltaic power generation, identification device, lighting device, etc., can solve problems such as reduced position accuracy
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no. 1 approach
[0037] figure 1 It is a schematic plan view showing a part of the structure of the light emitting device 1 according to the first embodiment of the present invention. The lighting device 1 has a substrate 10 . Connection terminals 11 are formed at ends of the substrate 10 . Various signals and power supply voltages are supplied from an external circuit to the connection terminal 11 . In addition, a rectangular pixel region G and a peripheral region H located between the pixel region G and the outer periphery of the substrate 10 are provided on the substrate 10 . In the peripheral region H, a scanning line driving circuit 12 and a data line driving circuit (not shown) are formed. In the pixel area G, a plurality of scanning lines 13 and a plurality of data lines 14 are formed, and a plurality of unit circuits (pixel circuits) P are provided near each of these intersections.
[0038] figure 2 It is a circuit diagram showing details of a unit circuit P of the light emitt...
no. 2 approach
[0058] Figure 4 is a schematic plan view showing part of the structure of a light emitting device 2 according to a second embodiment of the present invention, Figure 5 yes means Figure 4 The sectional view taken along the line B-B' of the light-emitting device 2 shown. The light emitting device 2 differs from the light emitting device 1 in that the sealing layer is formed of a single thin film. In the light-emitting device 2, a sealing layer is formed on the wiring layer 17 and the cathode layer 19 to protect the OLED 50 from external air. This sealing layer is formed of a film of one layer. This thin film is a gas barrier film 24 formed on the wiring layer 17 and the cathode layer 19 .
[0059] The gas barrier film 24 is a film for preventing intrusion of external gases such as oxygen and moisture, and extends to cover the cathode layer 19 . In addition, the gas barrier film 24 spans a length corresponding to the thickness of the insulating film 18 in the vicinity of ...
no. 3 approach
[0064] Image 6 It is a cross-sectional view of a part of the light emitting device 3 according to the third embodiment of the present invention. The light emitting device 3 differs from the light emitting device 1 in that it includes a substrate in addition to the substrate 10 . The other substrate is a counter substrate 25 facing the substrate 10 across the OLED 50 . The counter substrate 25 is, for example, a color filter substrate, and is supported by the sealing portion 26 .
[0065] A filling material made of resin is filled between the side of the substrate 10 on which the OLED 50 is provided and the counter substrate 25 .
[0066] In the first and second embodiments, the gas barrier film 23 prevents external air from reaching the OLED 50 , but in this embodiment, the sealing performance is further improved by the filling material, the sealing portion 26 and the counter substrate 25 .
[0067] The sealing portion 26 is formed of, for example, resin, and is provided o...
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