Display apparatus having light blocking layer, and electric device
A display apparatus is provided that prevents shortening of the life of the luminescent elements and has a superior contrast ratio. The display apparatus is composed by forming a plurality of luminescent elements on a substrate and providing bank sections between each of the luminescent elements. The bank sections are formed from a first bank layer located on the side of the substrate and a second bank layer formed on the first bank layer. A light blocking layer is then provided between the first bank layer and the second bank layer.
1. A display apparatus comprising:
a substrate;
a plurality of luminescent elements formed on the substrate; and
a light blocking layer provided in a region between the luminescent elements when viewed from overhead,
wherein the light blocking layer comprises a first light blocking film located at a substrate side, and a second light blocking film located at a side away from the substrate,
the first light blocking film is a metallic chromium film, and the second light blocking film is made of chromium oxide,
one of the plurality of luminescent elements comprises a counter electrode, a pixel electrode that is closer to the substrate than the counter electrode, and a luminescent layer disposed between the counter electrode and the pixel electrode,
at least a portion of the first light blocking film is disposed closer to the substrate than an entirety of the luminescent layer, and
the light blocking layer is disposed between a plane including a surface of the pixel electrode facing the substrate and a plane including a surface of the counter electrode facing the substrate.
2. A display apparatus comprising:
a substrate;
a plurality of luminescent elements formed on the substrate;
a bank section provided between the luminescent elements; and
a light blocking layer provided between the substrate and at least a portion of the bank section,
wherein one of the plurality of luminescent elements comprises a counter electrode, a pixel electrode that is closer to the substrate than the counter electrode, and a luminescent layer disposed between the counter electrode and the pixel electrode,
the light blocking layer is disposed between a plane including a surface of the pixel electrode facing the substrate and a plane including a surface of the counter electrode facing the substrate, and
at least a portion of the light blocking layer is disposed closer to the substrate than an entirety of the luminescent layer.
3. A display apparatus according to claim 2 , wherein light blocking layer openings are provided in the light blocking layer at positions corresponding to the luminescent elements.
4. A display apparatus according to claim 2 ,
wherein the bank section comprises a first bank layer located on the substrate side, and a second bank layer formed on the first bank layer, and
the first bank layer is comprised of either SiO 2 or TiO 2 .
5. A display apparatus according to claim 2 ,
wherein the bank section comprises a first bank layer located on the substrate side, and a second bank layer formed on the first bank layer, and
the second bank layer is comprised of either acrylic resin or polyimide resin.
6. A display apparatus according to claim 2 , wherein
the bank section comprises a first bank layer located on the substrate side, and a second bank layer formed on the first bank layer, and
at least a portion of the first bank layer is processed to have lyophilicity.
7. A display apparatus according to claim 2 , wherein the light blocking layer comprises:
a first light blocking film located at a substrate side, and
a second light blocking film located at a side away from the substrate.
8. A display apparatus according to claim 7 ,
wherein the first light blocking film is a metallic chromium film, and
the second light blocking film is made of chromium oxide.
9. An electric device having a display apparatus and a drive circuit for driving the display apparatus,
wherein the display apparatus comprises:
a substrate;
a plurality of luminescent elements formed on the substrate; and
a light blocking layer provided in a region between the luminescent elements when viewed from overhead,
wherein the light blocking layer comprises a first light blocking film located at a substrate side, and a second light blocking film located at a side away from the substrate,
the first light blocking film is a metallic chromium film, and the second light blocking film is made of chromium oxide,
one of the plurality of luminescent elements comprises a counter electrode, a pixel electrode that is closer to the substrate than the counter electrode, and a luminescent layer disposed between the counter electrode and the pixel electrode,
at least a portion of the first light blocking film is disposed closer to the substrate than an entirety of the luminescent layer, and
the light blocking layer is disposed between a plane including a surface of the pixel electrode facing the substrate and a plane including a surface of the counter electrode facing the substrate.
10. An electric device having a display apparatus and a drive circuit for driving the display apparatus,
the display apparatus comprises:
a substrate;
a plurality of luminescent elements formed on the substrate;
a bank section provided between the luminescent elements; and
a light blocking layer provided between the substrate and at least a portion of the bank section,
wherein one of the plurality of luminescent elements comprises a counter electrode, a pixel electrode that is closer to the substrate than the counter electrode, and a luminescent layer disposed between the counter electrode and the pixel electrode,
the light blocking layer is disposed between a plane including a surface of the pixel electrode facing the substrate and a plane including a surface of the counter electrode facing the substrate, and
at least a portion of the light blocking layer is disposed closer to the substrate than an entirety of the luminescent layer.
11. An electric device according to claim 10 , wherein the light blocking layer comprises:
a first light blocking film located at a substrate side, and
a second light blocking film located at a side away from the substrate.
12. A display apparatus according to claim 11 ,
wherein the first light blocking film is a metallic chromium film, and
the second light blocking film is made of chromium oxide.
13. A display apparatus comprising:
a substrate;
a plurality of luminescent elements formed on the substrate, one of the luminescent elements comprising a counter electrode, a pixel electrode, and a luminescent layer;
a bank section provided between the luminescent elements, the bank section overlapping with a peripheral edge of one of the plurality of pixel electrodes when viewed from overhead; and
a light blocking layer formed between the substrate and the bank section, the light blocking layer provided in a region between the luminescent elements, the region including a peripheral edge of the one of the plurality of pixel electrodes on which the bank section rides up when viewed from overhead.
14. A display apparatus according to claim 13 , further comprising:
a circuit element driving the one of the plurality of luminescent elements, wherein the circuit element includes a transistor, and the light blocking layer is disposed above the transistor.