Display apparatus and method for producing the same

• US 20050006657A1
• Filed: 08/10/2004
• Published: 01/13/2005
• Est. Priority Date: 03/18/2002
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Terashita, Shinichi
• Granted Patent: US 7,250,636 B2
• Time in Patent Office: Days
• US Class Current: 257/98
• CPC Class Codes: C09K 11/574 with zinc or cadmium
• CPC Class Codes: C09K 11/586 with alkaline earth metals
• CPC Class Codes: C09K 11/7718 with alkaline earth metals
• CPC Class Codes: C09K 11/7747 Halogenides C09K11/7744 takes precedence
• CPC Class Codes: H01L 33/20 with a particular shape, e.g. curved or truncated substrate
• CPC Class Codes: H01L 33/24 of the light emitting region, e.g. non-planar junction
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: H10K 50/182 OLED comprising a fiber structure
• CPC Class Codes: H10K 50/85 Arrangements for extracting light from the devices
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/17 Passive-matrix OLED displays
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/875 Arrangements for extracting light from the devices

Abstract

A display apparatus includes an array of fiber-type semiconductor light-emitting elements. Each of the fiber-type semiconductor light-emitting elements includes a layered structure having a first electrode layer, a second electrode layer, and a semiconductor light-emitting layer at least part of which is sandwiched by the first and second electrode layers, and a fiber for supporting the layered structure and for propagating light emitted from the light-emitting layer. The display apparatus also includes driving connectors including a switching element or a plurality of first and second conductive lines, which are electrically connected to the first and second electrode layers, respectively, for driving the plurality of the fiber-type semiconductor light-emitting elements.

Claims

1-30. -30. (canceled).

31. A display apparatus comprising:

an array of fiber-type semiconductor light-emitting elements, each of the fiber-type semiconductor light-emitting elements including a layered structure having a first electrode layer, a second electrode layer, and a semiconductor light-emitting layer at least part of which is sandwiched by the first and second electrode layers, and a fiber for supporting the layered structure and for propagating light emitted from the light-emitting layer; and

a plurality of driving connectors electrically connected to at least one of the plurality of first and second electrode layers for connecting the array of fiber-type semiconductor light-emitting elements to a driving circuit;

wherein

the layered structure is arranged around the fiber so as to surround the fiber.

32. The display apparatus of claim 31, wherein light generated in each of the fiber-type semiconductor light-emitting elements is propagated along a length of the fiber and emitted from end surfaces of the fiber.

33. The display apparatus of claim 31, wherein the fiber of each of the fiber-type semiconductor light-emitting elements has a waveguide structure that allows light generated therein to be propagated along a length thereof and emitted from end surfaces of the fiber-type semiconductor light-emitting elements.

34. The display apparatus of claim 31, wherein the plurality of driving connectors includes a plurality of first conductive lines electrically connected to the first electrode layers and a plurality of second conductive lines electrically connected to the second electrode layers.

35. The display apparatus of claim 34, wherein the fiber-type semiconductor light-emitting elements are arranged in a matrix of rows and columns, each of the plurality of first conductive lines mutually connects the first electrode layers of a plurality of fiber-type semiconductor light-emitting elements belonging to a corresponding row, and each of the plurality of second conductive lines mutually connects the second electrode layers of a plurality of fiber-type semiconductor light-emitting elements belonging to a corresponding column.

36. The display apparatus of claim 31, wherein the plurality of driving connectors includes a plurality of switching elements electrically connected to at least one of the plurality of first electrode layers and the plurality of second electrode layers.

37. The display apparatus of claim 36, wherein each of the plurality of switching elements is a thin film transistor included in the layered structure.

38. The display apparatus of claim 31, wherein an end surface of the array of the fiber-type semiconductor light-emitting elements is disposed in a position corresponding to a pixel.

39. The display apparatus of claim 31, wherein the layered structure includes a hole carrying layer, a light-emitting layer, and an electron carrying layer which are disposed on top of each other to define the layered structure.

40. The display apparatus of claim 31, wherein the fiber-type semiconductor light-emitting element is one of a light-emitting diode and a laser.

41. A display apparatus comprising:

an array of fiber-type semiconductor light-emitting elements, each of the fiber-type semiconductor light-emitting elements including a layered structure having a first electrode layer, a second electrode layer, and a semiconductor light-emitting layer at least part of which is sandwiched by the first and second electrode layers, and a fiber for supporting the layered structure and for propagating light emitted from the light-emitting layer; and

a plurality of driving connectors electrically connected to at least one of the plurality of first and second electrode layers for connecting the array of fiber-type semiconductor light-emitting elements to a driving circuit;

wherein

a diffraction grating is disposed on a surface of the fiber.

42. The display apparatus of claim 41, wherein light generated in each of the fiber-type semiconductor light-emitting elements is propagated along a length of the fiber and emitted from end surfaces of the fiber.

43. The display apparatus of claim 41, wherein the fiber of each of the fiber-type semiconductor light-emitting elements has a waveguide structure that allows light generated therein to be propagated along a length thereof and emitted from end surfaces of the fiber-type semiconductor light-emitting elements.

44. The display apparatus of claim 41, wherein the plurality of driving connectors includes a plurality of first conductive lines electrically connected to the first electrode layers and a plurality of second conductive lines electrically connected to the second electrode layers.

45. The display apparatus of claim 44, wherein the fiber-type semiconductor light-emitting elements are arranged in a matrix of rows and columns, each of the plurality of first conductive lines mutually connects the first electrode layers of a plurality of fiber-type semiconductor light-emitting elements belonging to a corresponding row, and each of the plurality of second conductive lines mutually connects the second electrode layers of a plurality of fiber-type semiconductor light-emitting elements belonging to a corresponding column.

46. The display apparatus of claim 41, wherein the plurality of driving connectors includes a plurality of switching elements electrically connected to at least one of the plurality of first electrode layers and the plurality of second electrode layers.

47. The display apparatus of claim 46, wherein each of the plurality of switching elements is a thin film transistor included in the layered structure.

48. The display apparatus of claim 41, wherein an end surface of the array of the fiber-type semiconductor light-emitting elements is disposed in a position corresponding to a pixel.

49. The display apparatus of claim 41, wherein the layered structure includes a hole carrying layer, a light-emitting layer, and an electron carrying layer which are disposed on top of each other to define the layered structure.

50. The display apparatus of claim 41, wherein the fiber-type semiconductor light-emitting element is one of a light-emitting diode and a laser.