Display unit and electronic apparatus

Patent metadata

Field	Value
Publication number	US-9343516-B2
Application number	US-201314408054-A
Country	US
Kind code	B2
Filing date	Sep 11, 2013
Priority date	Sep 26, 2012
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A display unit includes a light emitting layer including a light emitting device ( 10 R, 10 G, 10 B); a color filter layer including a color filter ( 23 R, 23 G, 23 B) corresponding to the light emitting device; and a light blocking layer ( 22 ) including a light blocking member ( 22 B) arranged to overlap an end of the color filter, a center position of the light blocking member being offset from the end of the color filter.

First claim

The invention claimed is:

1. A display unit comprising:
a light emitting layer including a light emitting device;
a color filter layer including a color filter corresponding to the light emitting device; and
a light blocking layer including a light blocking member arranged to overlap an end side of the color filter,
wherein a center position of the light blocking member is offset from the end side of the color filter by a sufficient amount such that when the display unit is viewed in cross-section, a first line extends vertically through a center of the light emitting device, a second line extends obliquely from the end side of the color filter to a same end side of the light emitting device, and the second line intersects the color filter without intersecting the first line.

2. The display unit according to claim 1 , wherein the light emitting layer includes a plurality of light emitting devices, and the color filter layer includes a plurality of color filters corresponding to the light emitting devices, and the light blocking member is arranged to overlap a boundary between ends of two adjacent color filters.

3. The display unit according to claim 2 , wherein in a first color filter more than half of the light blocking member overlaps said first color filter, and in a second color filter that is adjacent to the first color filter less than half of the same light blocking member overlaps said second color filter.

4. The display unit according to claim 3 , wherein the first color filter is a different color type than the second color filter.

5. The display unit according to claim 3 , wherein the light emitting layer includes a plurality of different types of light emitting devices, and widths of light emission regions of the light emitting devices vary with the type of light emitting device.

6. The display unit according to claim 2 , wherein the light blocking layer includes a plurality of light blocking members, each light blocking member overlapping a different boundary between end of adjacent color filters.

7. The display unit according to claim 6 , wherein the color filter layer includes a plurality of different types of color filters alternately arranged, and the central positions of the respective light blocking members relative to the boundaries between ends of adjacent color filters are based on adjacent color filter type combinations.

8. The display unit according to claim 7 , wherein film thicknesses of the color filters differ based on the type of the color filter.

9. The display unit according to claim 6 , further comprising sub-pixels each including portions of the light blocking layer, the light emitting layer and the color filter layer, wherein the color filter layer includes a plurality of different types of color filters alternately arranged and that correspond to different types of the sub-pixels, and wherein in a case where a wavelength of light allowed to pass through a first type of color filter of a first sub-pixel is shorter than a wavelength of light allowed to pass through a second type of color filter of an adjacent second sub-pixel, light emitted from the light emitting layer of the first sub-pixel is blocked by the end of the second color filter to prevent mixing of colors from the first sub-pixel.

10. The display unit according to claim 6 , further comprising sub-pixels each including portions of the light blocking layer, the light emitting layer and the color filter layer, wherein a horizontal distance between an outer end of a light emitting device and an inner end of a light blocking member on a same side of a first color type of sub-pixel is different than an outer end of a light emitting device and an inner end of a light blocking member on a same side a second color type of subpixel.

11. The display unit according to claim 10 , wherein the sub-pixels include a red type sub-pixel, a green type sub-pixel, and a blue type sub-pixel, and the horizontal distance in the green type sub-pixel is greater than the horizontal distance in the blue type sub-pixel.

12. The display unit according to claim 1 , further comprising sub-pixels each including portions of the light blocking layer, the light emitting layer and the color filter layer, wherein the color filter layer includes a plurality of different types of color filters alternately arranged and that correspond to different types of the sub-pixels, and wherein in the case where a wavelength of light allowed to pass through a first type of color filter of a first sub-pixel is longer than a wavelength of light allowed to pass through a second type of color filter of an adjacent second sub-pixel, light from the first sub-pixel is blocked by a light blocking member that overlaps the boundary between ends of the first and second sub-pixels to prevent mixing of colors from the adjacent second sub-pixel.

13. An electronic apparatus comprising:
a processor; and
a display unit operable with the processor to display an image, the display unit including:
a light emitting layer including a light emitting device,
a color filter layer including a color filter corresponding to the light emitting device, and
a light blocking layer including a light blocking member arranged to overlap an end side of the color filter,

wherein a center position of the light blocking member being is from the end side of the color filter by a sufficient amount such that when the display unit is viewed in cross-section, a first line extends vertically through a center of the light emitting device, a second line extends obliquely from the end side of the color filter to a same end side of the light emitting device, and the second line intersects the color filter without intersecting the first line.

Assignees

• Sony Corp

Inventors

• Motoyama Yosuke
• Asaki Reo

Classifications

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/876

  comprising a resonant cavity structure, e.g. Bragg reflector pair · CPC title

• H10K59/126

  Shielding, e.g. light-blocking means over the TFTs · CPC title

• H10K59/35 Primary

  comprising red-green-blue [RGB] subpixels · CPC title

• H01L27/3216

  Electricity · mapped topic