Total reflection display device and plastic frame component

Patent metadata

Field	Value
Publication number	US-11391990-B2
Application number	US-201816474736-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Feb 13, 2018
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

A plastic frame component includes: a first frame strip, configured to match with a side edge of the display component to support the display device; a light source, disposed on the first frame strip and configured to emit light; and an optical path adjuster, disposed on the first frame strip. The first frame strip includes a first portion and a second portion that are connected to each other. The first portion and/or the second portion accommodate/accommodates the light source and the optical path adjuster, such that the first portion can protrude from the side edge of the display component and go beyond the display surface after the plastic frame component is assembled with the total reflection display component, and that the light emitted by the light source shines onto a display area of the display component after being adjusted by the optical path adjuster.

First claim

What is claimed is:

1. A plastic frame component for matching up with a total reflection display component to form a total reflection display device, comprising:
a first frame strip configured to match with a side edge of the display component to support the display component;
a light source on the first frame strip and configured to emit light; and
an optical path adjuster on the first frame strip and between the light source and the total reflection display component, wherein:
the first frame strip comprises a first portion, the first portion accommodates the light source and the optical path adjuster, and the first portion protrudes from the side edge of the display component and goes beyond a display surface of total reflection display component after the plastic frame component is assembled with the total reflection display component such that the light emitted by the light source shines onto a display area of the display component after being adjusted by the optical path adjuster;
at least one of:
(a) the first frame strip further comprises a second portion connected to the first portion, the first portion and the second portion form an optical channel configured to transmit light, a first end of the optical channel is on a side wall of the first portion facing toward a side of the display component, a second end of the optical channel is positioned in the second portion, the light source is at the second end of the optical channel, and the optical path adjuster is at the first end of the optical channel; and
(b) the first portion has an extension portion extending from a position at which the optical path adjuster is fixed to a first direction, a surface of the extension portion opposite to the display surface is configured to reflect the light emitted from the light source, and the first direction is a direction in which a non-display area of the display component directs to the display area.

2. The plastic frame component according to claim 1 , wherein:
the optical channel comprises an optical cavity and a reflective layer covering a surface of the optical cavity;
an opening of the optical cavity is on a side wall of the first portion facing toward a side of the display component;
the optical cavity extends from the opening to a bottom end of the second portion.

3. The plastic frame component according to claim 1 , further comprising at least one second frame strip, wherein:
an upper end portion of the second frame strip goes beyond the display surface of the display component after the plastic frame component is assembled with the display component;
a second angle formed between a side wall in the upper end portion of the second frame strip adjacent to the display component and the display surface is an acute angle; and
the side wall in the upper end portion of the second frame strip adjacent to the display component is configured to reflect the light emitted by the light source.

4. The plastic frame component according to claim 3 , wherein the side wall in the upper end portion of the second frame strip adjacent to the display component is a recessed curved surface.

5. The plastic frame component according to claim 1 , wherein:
the optical path adjuster is a lens strip and, at a light emission side of the lens strip, an angle formed between the lens strip and the display surface of the display component is an obtuse angle; and
the lens strip is shaped like an arch rising in the first direction.

6. The plastic frame component according to claim 5 , wherein, at the light emission side of the lens strip, an angle formed between the lens strip and the display surface of the display component ranges from 90° to 120° approximately.

7. The plastic frame component according to claim 1 , wherein:
the optical path adjuster is a lens strip and, at a light emission side of the lens strip, an angle formed between the lens strip and the display surface of the display component is greater than or equal to 90°;
a light emission surface of the lens strip has a first strip region, a second strip region, and a third strip region in a third direction;
the light emission surface of the lens strip has a plurality of strip-shaped first microstructures in a portion of the first strip region;
the light emission surface of the lens strip is a curved surface protruding in the first direction in a portion of the second strip region;
the light emission surface of the lens strip has a plurality of strip-shaped second microstructures in a portion of the third strip region, wherein the first microstructure is configured to deflect a portion of incident light rays in the third direction, and the second microstructure is configured to deflect a portion of the incident light rays in a fourth direction; and
the first direction is a direction in which the non-display area of the display component directs to the display area, the third direction is a direction in which a back surface of the display component directs to the light emission surface, and the fourth direction is opposite to the third direction.

8. The plastic frame component according to claim 7 , wherein at the light emission side of the lens strip, a third angle formed between the lens strip and the display surface of the display component ranges from 90° to 120°.

9. The plastic frame component according to claim 7 , wherein:
the first microstructure comprises a plane and a thickness direction of the lens strip there is provided with an included angle ranging from 0° to 60°;
the first microstructure further comprises a curved surface that is in contact with the plane adjacent to the curved surface and bulges in the third direction;
the second microstructure comprises a plane and the thickness direction of the lens strip there is provided with an included angle ranging from 0° to 60°; and
the second microstructure further comprises a curved surface that is in contact with the plane adjacent to the curved surface and bulges in the fourth direction.

10. The plastic frame component according to claim 7 , wherein:
a light incident surface of the lens strip is composed of a plurality of protruded hemispherical surfaces or, the light incident surface of the lens strip is composed of a plurality of strip-shaped curved surfaces protruding toward the first direction or the second direction; and
the second direction is opposite to the first direction.

11. The plastic frame component according to claim 1 , wherein:
the number of the first frame strip is one; or
the number of the first frame strips is two, and two first frame strips are positioned on two opposite sides of the display component.

12. The plastic frame component according to claim 11 , wherein:
if the display component is a rectangular display component, the first frame strip matches up with a shorter edge of the rectangular display component; or
the two first frame strips match up with two shorter edges of the rectangular display component.

13. The plastic frame component according to claim 1 , wherein:
the optical path adjuster is a lens strip and, at a light emission side of the lens strip, an angle formed between the lens strip and the display surface of the display component is an obtuse angle; and
the lens strip comprises a first sub-lens strip and a second sub-lens strip positioned on a side of the first sub-lens strip away from the display component, the first sub-lens strip is shaped like an arch rising in a second direction, and the second sub-lens strip is shaped like an arch rising in the first direction; and the second direction is opposite to the first direction.

14. A total reflection displ

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Liang Fei
• Du Jingjun
• Sun Lingyu
• Chen Xiuyun
• Liu Miao
• Wang Zheng
• Gai Xin
• Dong Fei
• Fang Liyu
• Hou Tingxiu
• Yoon Daekeun

Classifications

• G02F1/133608

  including particular frames or supporting means · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G02F1/133616 Primary

  Front illuminating devices · CPC title

• G02F1/133606

  including a specially adapted diffusing, scattering or light controlling members · CPC title

• G02F1/133607

  the light controlling member including light directing or refracting elements, e.g. prisms or lenses · CPC title