US 10,473,830 B2Granted

Display device with haze layer

AssigneeAu Optronics Corporation

InventorsWang-Shuo Kao, Yu-Han Chiang, Ya-Chen Kao, Kai-Chieh Chang, Shang-Chiang Lin

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Abstract

The present invention provides a display device including a display panel and a haze layer. The display panel includes a plurality of pixels and a color determining surface. The orthogonal projection of each of the plurality of pixels onto the color determining surface forms a plurality of adjacent pixel ranges. The haze layer is disposed on a side of the color determining surface and has a haze surface facing away from the color determining surface. The haze layer has a scattering coefficient ranging from −1.4 to 0. The haze surface includes a first location corresponding to the center of the first pixel range, and a second location corresponding to a location away from the first edge towards the second pixel range wherein the distance therebetween ranges from 87 μm to 174 μm.

Claims17

Dependent claims

A display device, comprising:

a display panel including a plurality of pixels and a color determining surface, wherein an orthogonal projection of each of the plurality of pixels onto the color determining surface forms a pixel range, each pixel range having a width p;
and
a haze layer disposed on a side of the color determining surface, the haze layer having a scattering coefficient s ranging from −1.4 to 0,
wherein the haze layer has a haze surface facing away from the color determining surface, in which the haze layer defines a reference surface, and the distance between the color determining surface and the reference surface is d, and wherein the scattering coefficient s, the width p and the distance d satisfy the relation:
2
⁢

(
10
-
8
⁢
(
1
+
S
)
⁢
Hypergeometric
⁢
⁢
2
⁢
⁢
F
⁢
⁢
1
[
2
+
S
2
,
1
+
S
2
,
1
+
1
+
S
2
,
(
-
10
)
-
16
]
-
2
[
-
1
-
S
(
1
+
1
4
⁢
c
2
)
S
2
]
⁢
(
1
c
⁢
1
+
1
4
⁢
c
2
)
S
Hypergeometric
⁢
⁢
2
⁢
F
⁢
⁢
1
[
2
+
S
2
,
1
+
S
2
,
1
+
1
+
S
2
,
-
1
4
⁢
c
2
]
c
)


(
k
(
k
c
⁢
1
+
k
2
c
2
)
S
⁢
(
1
+
k
2
c
2
)
S
2
⁢
Hypergeometric
⁢
⁢
2
⁢
F
⁢
⁢
1
[
2
+
S
2
,
1
+
S
2
,
1
+
1
+
S
2
,
-
k
2
c
2
]
-
(
1
+
k
)
⁢
(
1
+
k
c
⁢
1
+
(
1
+
k
)
2
c
2
)
S
⁢
(
1
+
(
1
+
k
)
2
c
2
)
S
2
Hypergeometric
⁢
⁢
2
⁢
⁢
F
⁢
⁢
1
[
2
+
S
2
,
1
+
S
2
,
1
+
1
+
S
2
,
-
(
1
+
k
)
2
c
2
]
c
)

≥
10
,
in which c=d/p and k=174 μm/p.

265 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/009,831Filed 15 Jun 2018
Priority: TW 106121176 A22 Jun 2017
Published: US 2018/0372928 A127 Dec 2018
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G02B 5/021
Characterised by the diffusing properties: the diffusion taking place at the element's surface, e.g. by means of surface roughening or…
G02B 5/0278
Characterized by the use: used in transmission
G02B 5/201
Filters: in the form of arrays
G02F 1/133504
Structural association of cells with optical devices, e.g. polarisers or reflectors: diffusing, scattering, diffracting elements