Dual-view field display panel, manufacturing method thereof and display device

• US 10,317,721 B2
• Filed: 12/10/2014
• Issued: 06/11/2019
• Est. Priority Date: 09/11/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Lin, Chia-Chiang, Wei, Wei
• Primary Examiner(s): Chwasz, Jade R
• Application Number:
  US14/769,084
• Publication Number:
  US 20160252760A1
• Time in Patent Office: 1,644 Days
• Field of Search: 359893, 359891, 359892, 359558, 359566, 359567, 359569
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02F 1/1335 Structural association of cells with optical devices, e.g. polarisers or reflectors
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133562 on the viewer side

Abstract

Embodiments of the present invention disclose a dual-view field display panel comprising: a first substrate and a second substrate disposed opposite to the first substrate; and a dual-view grating disposed on a side of the first substrate away from the second substrate, which has a plurality of elongated transparent areas spaced from each other; wherein each of the plurality of elongated transparent areas corresponds to a plurality of rows of pixels and is substantially parallel therewith, and the number of rows of the plurality of rows of pixels corresponding to each of the plurality of elongated transparent areas is selected based on the thickness of the first substrate, so that light from the plurality of rows of pixels is able to be viewed in the left-view field or in the right-view field through a corresponding transparent area. The distance between the dual-view grating and the pixels can be equal to the thickness of the glass substrate by adjusting the number of pixels corresponding to the transparent areas of the dual-view grating, thereby reducing manufacturing process difficulty, resulting in being able to manufacture the dual-view products with existing manufacturing process directly, and increasing the rate of qualified products greatly.

Claims

1. A dual-view field display panel comprising:

a first substrate and a second substrate disposed opposite to the first substrate, the first substrate being a glass substrate and being one of a color film substrate and an array substrate, and the second substrate being the other one of the color film substrate and the array substrate; and

a dual-view grating separate from both the first substrate and the second substrate and disposed on a side of the first substrate away from the second substrate, the dual-viewing grating having a plurality of elongated transparent areas spaced apart in a completely mutually separated manner from one another;

wherein each one of the plurality of elongated transparent areas is arranged corresponding to a plurality of rows of pixels, such that the plurality of rows of pixels are arranged substantially parallel with each one of the plurality of elongated transparent areas, through which light from the plurality of rows of pixels is viewable in a left-view field or a right-view field; and

wherein a number of rows of the plurality of rows of pixels from which light is viewable in a left-view field or a right-view field through each one of the plurality of elongated transparent areas is selected based on a thickness of the first substrate which is predetermined to be equal to a distance between the dual-view grating and the pixels;

wherein a value of a width of each of the transparent areas of the dual-view grating is adjusted after the distance between the dual-view grating and the pixels is set and the number n of the pixels is selected, so as to meet a requirement for critical angles of a crosstalk area for the dual-view field display panel; and

wherein the number n of the pixels is adjusted depending on the following equation, p=(p′

+b′

)×

n−

b′

, b=b′

, wherein p is a width of one of the transparent areas of pixels and b is a width of one of non-transparent areas of pixels to be adjusted to, p′

is a width of one of the transparent areas of pixels and b′

is a width of one of the non-transparent areas of pixels by a traditional designing manner, the traditional designing manner comprising;

setting the width p′ and

the width b′

as fixed values; and

adjusting a width of one of the transparent areas of the dual-view grating and the distance between the dual-view grating and the pixels to meet the requirement for critical angles of a crosstalk area for the dual-view field display panel.

2. The dual-view field display panel of claim 1, wherein the thickness of the first substrate is in a range of 200 μ

m to 500 μ

m.

3. A display device comprising the dual-view field display panel of claim 2.

4. The dual-view field display panel of claim 1, wherein the first substrate is a color film substrate.

5. A display device comprising the dual-view field display panel of claim 4.

6. A display device comprising the dual-view field display panel of claim 1.

7. A manufacturing method of a dual-view field display panel, the dual-view field display panel comprising:

a first substrate and a second substrate disposed opposite to the first substrate, the first substrate being a glass substrate and being one of a color film substrate and an array substrate, and the second substrate being the other one of the color film substrate and the array substrate; and

a dual-view grating separate from both the first substrate and the second substrate and disposed on a side of the first substrate away from the second substrate, the dual-view grating having a plurality of elongated transparent areas spaced apart in a completely mutually separated manner from one another, each one of the plurality of elongated transparent areas is arranged corresponding to a plurality of rows of pixels, such that the plurality of rows of pixels are arranged substantially parallel with each one of the plurality of elongated transparent areas, through which light from the plurality of rows of pixels is viewable in a left-view field or a right-view field, wherein the method comprises;

setting a distance between the dual-view grating and the pixels to be equal to a thickness of the first substrate; and

selecting a number of rows of the plurality of rows of pixels from which light is viewable in a left-view field or a right-view field through each one of the plurality of elongated transparent areas, based on the distance between the dual-view grating and the pixels;

wherein by setting the distance between the dual-view grating and the pixels and using a designing manner of selecting the number n of the pixels, the requirement for critical angles of a crosstalk area for the dual-view field display panel is met; and

wherein the number n of the pixels is adjusted depending on the following equation, p=(p′

+b′

)×

n−

b′

, b=b′

, wherein p is a width of one of the transparent areas of pixels and b is a width of one of non-transparent areas of pixels to be adjusted to, p′

is a width of one of the transparent areas of pixels and b′

is a width of one of the non-transparent areas of pixels by a traditional designing manner, the traditional designing manner comprising;

setting the width p′ and

the width b′

as fixed values; and

adjusting a width of one of the transparent areas of the dual-view grating and the distance between the dual-view grating and the pixels to meet the requirement for critical angles of a crosstalk area for the dual-view field display panel.

8. The manufacturing method of claim 7, wherein the thickness of the first substrate is in a range of 200 μ

m to 500 μ

m.