DISPLAY DEVICE

• US 20170242295A1
• Filed: 02/24/2017
• Published: 08/24/2017
• Est. Priority Date: 02/24/2016
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: HIROSAWA, Jin
• Granted Patent: US 9,983,431 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/136209 Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence

Abstract

According to one embodiment, a display device includes a first light-shielding portion and a second light-shielding portion arranged at a first pitch in a first direction, and a light-shielding layer including a first portion overlapping the first light-shielding portion and a second portion overlapping the second light-shielding portion in planar view, a width center of the second light-shielding portion being displaced from a width center of the second portion in the first direction, an opening portion being located between the first portion and the second portion, the first portion and the second portion being arranged at a second pitch different from the first pitch in the first direction.

Claims

1. A display device, comprising:

a first substrate including a first light-shielding portion and a second light-shielding portion arranged at a first pitch in a first direction; and

a second substrate including a light-shielding layer including a first portion overlapping the first light-shielding portion and a second portion overlapping the second light-shielding portion in planar view,

a width center of the second light-shielding portion being displaced from a width center of the second portion in the first direction,

an opening portion being located between the first portion and the second portion,

the first portion and the second portion being arranged at a second pitch different from the first pitch in the first direction.

2. The display device of claim 1, wherein

a width center of the first light-shielding portion matches a width center of the first portion, and the width center of the second light-shielding portion is closer to the opening portion than to the width center of the second portion, and

the first pitch is smaller than the second pitch.

3. The display device of claim 2, wherein

a first width of the first light-shielding portion is larger than a second width of the second light-shielding portion.

4. The display device of claim 3, wherein

the first portion and the second portion have an equal third width, and

the third width is larger than the first width and the second width.

5. The display device of claim 4, wherein

when the second width of the second light-shielding portion is represented by W2 and the third width of the second portion is represented by W3, an amount of displacement between the width center of the second light-shielding portion and the width center of the second portion is (W3−

W2)/2 or less.

6. The display device of claim 4, wherein

an entire body of the second light-shielding portion overlaps the second portion in planar view.

7. The display device of claim 1, wherein

the width center of the first light-shielding portion is remoter from the opening portion than from the width center of the first portion, toward one of sides,

the width center of the second light-shielding portion is remoter from the opening portion than from the width center of the second portion, toward the other side, and

the first pitch is larger than the second pitch.

8. The display device of claim 7, wherein

a first width of the first light-shielding portion is equal to a second width of the second light-shielding portion.

9. The display device of claim 8, wherein

the first portion and the second portion have an equal third width, and

the third width is larger than the first width and the second width.

10. The display device of claim 9, wherein

when the second width of the second light-shielding portion is represented by W2 and the third width of the second portion is represented by W3, an amount of displacement between the width center of the second light-shielding portion and the width center of the second portion is (W3−

W2)/2 or less.

11. The display device of claim 9, wherein

an entire body of the first light-shielding portion overlaps the first portion and an entire body of the second light-shielding portion overlaps the second portion, in planar view.

12. The display device of claim 1, wherein

the first substrate further includes an insulating substrate and a semiconductor layer, and

the first light-shielding portion and the second light-shielding portion are located between the insulating substrate and the semiconductor layer or between the semiconductor layer and the second substrate.

13. A display device, comprising:

a first substrate including first to third light-shielding portions arranged sequentially in a first direction; and

a second substrate including a light-shielding layer including a first portion overlapping the first light-shielding portion, a second portion overlapping the second light-shielding portion and a third portion overlapping the third light-shielding portion, in planar view,

the first light-shielding portion and the second light-shielding portion being arranged at a first pitch,

the first portion and the second portion being arranged at a second pitch larger than the first pitch,

the second light-shielding portion and the third light-shielding portion being arranged at a third pitch,

the second portion and the third portion being arranged at a fourth pitch smaller than the third pitch.

14. The display device of claim 13, further comprising:

a first opening portion located between the first portion and the second portion,

wherein

a width center of the first light-shielding portion matches a width center of the first portion, and a width center of the second light-shielding portion is closer to the first opening portion than to a width center of the second portion.

15. The display device of claim 14, wherein

an entire body of the first light-shielding portion overlaps the first portion and an entire body of the second light-shielding portion overlaps the second portion, in planar view.

16. The display device of claim 13, further comprising:

a second opening portion located between the second portion and the third portion,

wherein

a width center of the second light-shielding portion is remoter from the second opening portion than from a width center of the second portion, toward one of sides, and

a width center of the third light-shielding portion is remoter from the second opening portion than from a width center of the third portion, toward the other side.

17. The display device of claim 16, wherein

an entire body of the second light-shielding portion overlaps the second portion and an entire body of the third light-shielding portion overlaps the third portion, in planar view.

18. The display device of claim 13, wherein

the fourth pitch is smaller than the second pitch.

19. The display device of claim 13, wherein

the first substrate further includes an interlayer insulating film located above the first to third light-shielding portions, and a first pixel electrode and a second pixel electrode located above the interlayer insulating film,

the first pixel electrode is located between the first portion and the second portion and a second pixel electrode is located between the second portion and the third portion, in planar view, and

a distance between the second portion and a first end portion of the first pixel electrode is shorter than a distance between the second portion and a second end portion of the second pixel electrode.

20. The display device of claim 13, wherein

the first substrate further includes a first interlayer insulating film located above the first to third light-shielding portions, a first pixel electrode and a second pixel electrode located above the first interlayer insulating film, a second interlayer insulating film located above the first pixel electrode and the second pixel electrode, and a common electrode located above the second interlayer insulating film,

the common electrode comprises a first slit opposed to the first pixel electrode and a second slit opposed to the second pixel electrode,

the first pixel electrode is located between the first portion and the second portion and the second pixel electrode is located between the second portion and the third portion, in planar view, and

a distance between the second portion and a first end portion of the first slit is shorter than a distance between the second portion and a second end portion of the second slit.