Display device and electronic device

• US 9,563,063 B2
• Filed: 07/20/2016
• Issued: 02/07/2017
• Est. Priority Date: 05/09/2012
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei, Hirakata, Yoshiharu
• Primary Examiner(s): Donovan, Lincoln
• Assistant Examiner(s): SKIBINSKI, THOMAS S
• Application Number:
  US15/214,605
• Publication Number:
  US 20160327803A1
• Time in Patent Office: 202 Days
• Field of Search: 315/291, 315/294, 315/297, 313/504, 345/531, 345/100, 345/204, 257/98, 349/15, 349/117, 349/96
• US Class Current: 1/1
• CPC Class Codes: G02B 30/00 Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images in microscopes G02B21/22
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• 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 2320/066 for control of contrast
• CPC Class Codes: G09G 3/2074 using sub-pixels
• CPC Class Codes: G09G 3/3275 Details of drivers for data electrodes
• 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]

Abstract

A display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500 and includes a display portion. In the display portion, pixels are provided at a resolution of greater than or equal to 80 ppi, and the pixels each includes a light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm in a response time of shorter than or equal to 100 μs. Further, transient characteristics of the emission intensity of the light-emitting module have a projecting portion higher than other portions in a portion rising in response to an input signal.

Claims

1. A display device comprising:

a display portion in which pixels are provided, the pixels each comprising a light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm,

wherein a transient characteristic of emission intensity of the light-emitting module has a projecting portion and a second portion following the projecting portion, the projecting portion having a higher emission intensity than the second portion, and

wherein the light-emitting module of a first pixel of the pixels is capable of emitting light of a first color with a first spectral line half-width of less than or equal to 60 nm, and the light-emitting module of a second pixel of the pixels is capable of emitting light of a second color with a second spectral line half-width of less than or equal to 60 nm, the first spectral line half-width being narrower than the second spectral line half-width.

2. The display device according to claim 1, wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500.

3. The display device according to claim 1, wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

4. The display device according to claim 1, wherein the pixels are provided at a resolution of greater than or equal to 300 ppi.

5. The display device according to claim 1,

wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500, and

wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

6. The display device according to claim 1, wherein the light-emitting module is capable of emitting light in a response time of less than or equal to 100 μ

s.

7. The display device according to claim 1, wherein the light-emitting module of a pixel of the pixels is capable of emitting red light with a spectral line half-width of less than or equal to 60 nm, the light-emitting module of a pixel of the pixels is capable of emitting green light with a spectral line half-width of less than or equal to 60 nm, and the light-emitting module of a pixel of the pixels is capable of emitting blue light with a spectral line half-width of less than or equal to 60 nm.

8. A display device comprising:

a display portion in which pixels are provided, the pixels each comprising a light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm,

wherein a transient characteristic of emission intensity of the light-emitting module has a projecting portion and a second portion following the projecting portion, the projecting portion having a higher emission intensity than the second portion, and

wherein light-emitting module comprises a first electrode, an insulating layer over the first electrode, a light-emitting layer over the first electrode and the insulating layer, and a second electrode over the light-emitting layer.

9. The display device according to claim 8, wherein the light-emitting module comprises a color filter over the second electrode.

10. The display device according to claim 8, wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500.

11. The display device according to claim 8, wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

12. The display device according to claim 8, wherein the pixels are provided at a resolution of greater than or equal to 300 ppi.

13. The display device according to claim 8,

wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500, and

wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

14. The display device according to claim 8, wherein the light-emitting module is capable of emitting light in a response time of less than or equal to 100 μ

s.

15. The display device according to claim 8, wherein the light-emitting module of a pixel of the pixels is capable of emitting red light with a spectral line half-width of less than or equal to 60 nm, the light-emitting module of a pixel of the pixels is capable of emitting green light with a spectral line half-width of less than or equal to 60 nm, and the light-emitting module of a pixel of the pixels is capable of emitting blue light with a spectral line half-width of less than or equal to 60 nm.

16. A display device comprising:

a display portion in which pixels are provided, the pixels each comprising a light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm,

wherein a transient characteristic of emission intensity of the light-emitting module has a projecting portion and a second portion following the projecting portion, the projecting portion having a higher emission intensity than the second portion, and

wherein the light-emitting module comprises no liquid-crystal element.

17. The display device according to claim 16, wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500.

18. The display device according to claim 16, wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

19. The display device according to claim 16, wherein the pixels are provided at a resolution of greater than or equal to 300 ppi.

20. The display device according to claim 16,

wherein the display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500, and

wherein the pixels are provided at a resolution of greater than or equal to 80 ppi.

21. The display device according to claim 16, wherein the light-emitting module is capable of emitting light in a response time of less than or equal to 100 μ

s.

22. The display device according to claim 16, wherein the light-emitting module of a pixel of the pixels is capable of emitting red light with a spectral line half-width of less than or equal to 60 nm, the light-emitting module of a pixel of the pixels is capable of emitting green light with a spectral line half-width of less than or equal to 60 nm, and the light-emitting module of a pixel of the pixels is capable of emitting blue light with a spectral line half-width of less than or equal to 60 nm.