Electroluminescence display device
View Patent ↗There is provided an EL display device of a color filter system which obtains sufficient brightness and contrast while making it difficult to generate a color mixture even if pixels become fine. An EL display device 100 according to the present invention includes a first substrate 1 , a circuit layer 2 formed on the first substrate 1 , a color selection reflection layer 11 formed in an upper layer of the circuit layer 2 , lower electrodes 5 formed in an upper layer of the color selection reflection layer 11 , a white light emission EL layer 7 formed in an upper layer of the lower electrodes 5 , an upper electrode 8 formed in an upper layer of the EL layer 7 , and a sealing layer 9 formed in an upper layer of the upper electrode 8.
1. An EL display device comprising:
a first substrate; and
a plurality of pixels formed on the first substrate, each of the pixels including a circuit layer, a lower electrode, a light emission EL layer, an upper electrode, a reflection layer, a color filter and a sealing layer;
wherein the circuit layer is formed on the first substrate;
the lower electrode which functions as an anode is formed on the circuit layer;
the upper electrode is formed on the lower electrode;
the light emission EL layer is arranged between the lower electrode and the upper electrode;
the reflection layer is arranged between the circuit layer and the lower electrode;
the color filter is arranged between the reflection layer and the lower electrode; and
a sealing layer is formed on the upper electrode to cover the plurality of pixels.
2. The EL display device according to claim 1 , further comprising:
an upper color filters arranged on the sealing layer; and
a second substrate having the upper color filters formed on a surface thereof.
3. The EL display device according to claim 1 , further comprising:
a light absorbing layer formed on a lower layer of a color selection reflection layer.
4. The EL display device according to claim 1 , further comprising:
a first protective layer formed between a color filters and the lower electrodes.
5. The EL display device according to claim 1 , further comprising:
a second protective layer formed between the sealing layer and an upper color filters.