1. A display apparatus comprising:
a circuit board including a pixel circuit on which an pixel electrode is formed;
a display sheet adhered to the circuit board; and
a common electrode installed on a surface of the display sheet, the surface being opposite to a surface thereof to which the circuit board is adhered,
wherein a surface of the circuit board to which the display sheet is adhered has a recess-and-projection structure having a plurality of projecting portions each having a flat upper surface, and
the upper surface of some of the plurality of projecting portions is the pixel electrode, and the plurality of projecting portions are adhered to the display sheet through an adhesion layer.
2. The display apparatus according to claim 1,
wherein the area of the upper surface of each of the projecting portions is 20 \u03bcm2 or larger.
3. The display apparatus according to claim 1,
wherein the height of the projecting portions of the recess-and-projection structure is 1.0 \u03bcm or larger.
4. The display apparatus according to claim 1,
wherein the display sheet is an electrophoretic sheet.
5. The display apparatus according to claim 1,
wherein the common electrode is formed on a common board, and
the common board on the side of the common electrode is adhered to the display sheet.
6. A display apparatus manufacturing method comprising:
forming a pixel circuit in a circuit board;
forming an insulating film having a projecting portion on the pixel circuit;
forming a pixel electrode in a region including the projecting portion; and
adhering a display sheet to the projecting portion via an adhesion layer,
wherein an upper surface of the projecting portion is flat, and
the insulating film has a recess-and-projection structure having a plurality of the projecting portions.
7. The display apparatus manufacturing method according to claim 6,
wherein the area of the upper surface of each of the projecting portions is 20 \u03bcm2 or larger.
8. The display apparatus manufacturing method according to claim 6,
wherein the height of the projecting portions of the recess-and-projection structure is 1.0 \u03bcm or larger.
9. The display apparatus manufacturing method according to claim 6,
wherein an electrophoretic sheet is used as the display sheet.
10. The display apparatus manufacturing method according to claim 6,
further comprising adhering a common board having a common electrode to the display sheet such that the common board on the side of the common electrode is oriented toward the side of the display sheet.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. An image reading unit which is attached onto an image reading apparatus, comprising:
a first unit having photoelectric conversion means for photoelectrically converting image information of an original; and
a second unit which can be engaged with said first unit,
wherein said first unit is engaged with said second unit, and after a first plane portion provided in said first unit and a second plane portion provided in said second unit are brought in close contact with each other, said first unit is fixed to said second unit with an adhesive, and
wherein a groove into which said adhesive is poured is formed in at least one of regions in which said first plane portion and said second plane portion are adhered to each other.
2. An image reading unit according to claim 1, where said first plane portion and said second plane portion have a first groove and a second groove, respectively.
3. An image reading unit according to claim 2, wherein said first groove crosses said second groove.
4. An image reading unit according to claim 3, wherein said first groove is linear.
5. An image reading unit according to claim 4, wherein said first groove comprises a plurality of grooves.
6. An image reading unit according to claim 5, wherein said first groove is formed in said first plane portion over an external of said regions.
7. An image reading unit according to claim 3, wherein said second groove is linear.
8. An image reading unit according to claim 7, wherein said second groove comprises a plurality of grooves.
9. An image reading unit according to claim 8, wherein said second groove is formed in said second plane portion over an external of said regions.
10. An image reading unit according to claim 3, wherein said first groove and said second groove are linear, respectively.
11. An image reading unit according to claim 10, wherein each of said first groove and said second groove comprises a plurality of grooves.
12. An image reading unit according to claim 11, wherein said first groove and said second groove are formed in said first plane portion and said second plane portion over an external of said regions.
13. An image reading unit according to claim 1, wherein said groove is formed in at least one of said first plane portion and said second plane portion over an exterior of said regions.
14. An image reading unit according to any one of claims 1 to 13, wherein a dynamic viscosity of the adhesive is set to 1.0103 to 2.0106 m2s.
15. An image reading unit according to any one of claims 1 to 13, wherein in a state that said second unit which is engaged with said first unit is attached onto a main body of said image reading apparatus, after a relative position of said first unit with respect to the main body of said image reading apparatus is adjusted, said first unit is fixed to said second unit.
16. An image reading unit according to claim 15, wherein said first unit comprises a first fixing member to which said photoelectric conversion means is fixed, and a second fixing member which is engageable with said first fixing member.
17. An image reading unit according to claim 16, wherein in a state that said second fixing member which is engaged with said first fixing member is engaged with said second unit, and in a state that said second unit is attached onto the main body of said image reading apparatus, after a relative position of said first fixing member with respect to said second fixing member is adjusted, said first fixing member is fixed to said second fixing member with an adhesive.
18. An image reading apparatus, comprising:
a first unit having photoelectric conversion means for photoelectrically converting image information of an original; and
a second unit which can be engaged with said first unit;
wherein said first unit is engaged with said second unit, and after a first plane portion provided in said first unit and a second plane portion provided in said second unit are brought in close contact with each other, said first unit is fixed to said second unit with an adhesive, and
wherein a groove into which said adhesive is poured is formed in at least one of regions in which said first plane portion and said second plane portion are adhered to each other.
19. An image reading apparatus according to claim 18, where said first plane portion and said second plane portion have a first groove and a second groove, respectively.
20. An image reading apparatus according to claim 19, wherein said first groove crosses said second groove.
21. An image reading apparatus according to claim 20, wherein said first groove is linear.
22. An image reading apparatus according to claim 21, wherein said first groove comprises a plurality of grooves.
23. An image reading apparatus according to claim 22, wherein said first groove is formed in said first plane portion over an external of said regions.
24. An image reading apparatus according to claim 20, wherein said second groove is linear.
25. An image reading apparatus according to claim 24, wherein said second groove comprises a plurality of grooves.
26. An image reading apparatus according to claim 25, wherein said second groove is formed in said second plane portion over an external of said regions.
27. An image reading apparatus according to claim 20, wherein said first groove and said second groove are linear, respectively.
28. An image reading apparatus according to claim 27, wherein each of said first groove and said second groove comprises a plurality of grooves.
29. An image reading apparatus according to claim 28, wherein said first groove and said second groove are formed in said first plane portion and said second plane portion over an external of said regions.
30. An image reading apparatus according to claim 18, wherein said groove is formed in at least one of said first plane portion and said second plane portion over an exterior of said regions.
31. An image reading apparatus according to any one of claims 18 to 30, wherein a dynamic viscosity of the adhesive is set to 1.0103 to 2.0106 m2s.
32. An image reading apparatus according to any one of claims 18 to 30, wherein in a state that said second unit which is engaged with said first unit is attached onto a main body of said image reading apparatus, after a relative position of said first unit with respect to the main body of said image reading apparatus is adjusted, said first unit is fixed to said second unit.
33. An image reading apparatus according to claim 32, wherein said first unit comprises a first fixing member to which said photoelectric conversion means is fixed, and a second fixing member which is engageable with said first fixing member.
34. An image reading apparatus according to claim 33, wherein in a state that said second fixing member which is engaged with said first fixing member is engaged with said second unit, and in a state that said second unit is attached onto the main body of said image reading apparatus, after a relative position of said first fixing member with respect to said second fixing member is adjusted, said first fixing member is fixed to said second fixing member with an adhesive.