DISPLAY DEVICE

• US 20090115952A1
• Filed: 05/31/2007
• Published: 05/07/2009
• Est. Priority Date: 06/19/2006
• 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: Itou, Akiko, Taguchi, Tokio, Nakamura, Kozo, Ueki, Shun
• Granted Patent: US 7,864,271 B2
• Time in Patent Office: Days
• US Class Current: 349/143
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02B 5/23 Photochromic filters
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/134345 Subdivided pixels, e.g. for grey scale or redundancy
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0456 with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
• CPC Class Codes: G09G 2320/041 Temperature compensation
• CPC Class Codes: G09G 2340/06 Colour space transformation
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 5/026 Control of mixing and/or overlay of colours in general G09G5/022 and G09G5/024 take precedence
• CPC Class Codes: H01J 2211/42 Fluorescent layers
• CPC Class Codes: H01J 2329/30 Shape or geometrical arrangement of the luminescent material
• CPC Class Codes: H04N 9/30 using solid-state colour display devices
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]

Abstract

A display device in which an image with a wide color reproduction range and bright red can be displayed is provided. The display device is a display device such as, for example, a liquid crystal display device, a cathode ray tube, an organic electroluminescent display device, a plasma display panel, and a field emission display. The display device includes a display surface including a pixel having red, green, blue, and yellow sub-pixels, wherein the red sub-pixel preferably has the largest aperture area.

Claims

1-37. -37. (canceled)

38. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

the red sub-pixel has a larger aperture area than an aperture area of the green sub-pixel, an aperture area of the blue sub-pixel, and an aperture area of the yellow sub-pixel.

39. The display device according to claim 38, wherein the green, the blue, and the yellow sub-pixels have the same size aperture area.

40. The display device according to claim 38, wherein the pixel includes a sub-pixel having an aperture area that is smaller than an aperture area of the blue sub-pixel.

41. The display device according to claim 38, wherein the green sub-pixel has the smallest aperture area.

42. The display device according to claim 38, wherein the yellow sub-pixel has the smallest aperture area.

43. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

the red and blue sub-pixels have the largest aperture area.

44. The display device according to claim 43, wherein the pixel has more of the red and blue sub-pixels than of the yellow and green sub-pixels.

45. The display device according to claim 44, wherein the pixel includes blue sub-pixels having different color characteristics.

46. The display device according to claim 44, wherein the pixel includes red sub-pixels having different color characteristics.

47. The display device according to claim 43, wherein the green and yellow sub-pixels have a smallest aperture area.

48. The display device according to claim 43, wherein the green sub-pixel has the smallest aperture area.

49. The display device according to claim 43, wherein the yellow sub-pixel has the smallest aperture area.

50. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

the blue sub-pixel has the largest aperture area.

51. The display device according to claim 50, wherein the pixel has more of the blue sub-pixels than any other of the green, red, and yellow sub-pixels.

52. The display device according to claim 51, wherein the pixel includes blue sub-pixels having different color characteristics.

53. The display device according to claim 50, wherein the red, green, and yellow sub-pixels have the smallest aperture area.

54. The display device according to claim 50, wherein the pixel has a sub-pixel with an aperture area that is smaller than an aperture area of the red sub-pixel.

55. The display device according to claim 50, wherein the green and yellow sub-pixels have a smallest aperture area.

56. The display device according to claim 50, wherein the green sub-pixel has a smallest aperture area.

57. The display device according to claim 50, wherein the yellow sub-pixel has a smallest aperture area.

58. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

the yellow sub-pixel has the smallest aperture area.

59. The display device according to claim 58, wherein the red, green, and blue sub-pixels have the largest aperture area.

60. The display device according to claim 59, wherein the pixel includes the same number of each of the red, green, and blue sub-pixels, and the same number is greater than a number of yellow sub-pixels in the pixel.

61. The display device according to claim 60, wherein the pixel includes blue sub-pixels having different color characteristics.

62. The display device according to claim 60, wherein the pixel includes red sub-pixels with different color characteristics.

63. The display device according to claim 58, wherein the pixel includes a sub-pixel that has an aperture area that is larger than an aperture area of the blue sub-pixel.

64. The display device according to claim 58, wherein, in the pixel, the red and green sub-pixels have the largest aperture area.

65. The display device according to claim 64, wherein, in the pixel, there is a same number of the red and green sub-pixels that is greater than a number of either of the yellow or the blue sub-pixels.

66. The display device according to claim 65, wherein the pixel includes green sub-pixels having different color characteristics.

67. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of red sub-pixels is greater than an aperture area of blue sub-pixels which is greater than an aperture area of green sub-pixels which is greater than an aperture area of yellow sub-pixels.

68. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

an aperture area of red sub-pixels is greater than an aperture area of blue sub-pixels which is greater than an aperture area of yellow sub-pixels which is greater than an aperture area of green sub-pixels.

69. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of red sub-pixels is greater than an aperture area of green sub-pixels which is greater than an aperture area of blue sub-pixels which is greater than an aperture area of yellow sub-pixels.

70. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of red sub-pixels is greater than an aperture area of blue sub-pixels which is greater than an aperture area of yellow and green sub-pixels.

71. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of blue sub-pixels is greater than an aperture area of red sub-pixels which is greater than an aperture area of green sub-pixels which is greater than an aperture area of yellow sub-pixels.

72. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of blue sub-pixels is greater than an aperture area of red sub-pixels which is greater than an aperture area of yellow sub-pixels which is greater than an aperture area of green sub-pixels.

73. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of blue sub-pixels is greater than an aperture area of green sub-pixels which is greater than an aperture area of red sub-pixels which is greater than an aperture area of yellow sub-pixels.

74. A display device comprising:

a display surface including a pixel having red, green, blue, and yellow sub-pixels;

wherein

an aperture area of blue and green sub-pixels is greater than an aperture area of red sub-pixels which is greater than an aperture area of yellow sub-pixels.