A transparent display device

Patent metadata

Field	Value
Publication number	US-2016349435-A1
Application number	US-201414411103-A
Country	US
Kind code	A1
Filing date	Nov 20, 2014
Priority date	Nov 17, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

A transparent display device is provided herein, which comprises a display module and a backlight module. The display module includes a liquid crystal display panel, polarizers and an optical film. The backlight module includes a light source and a light guide plate, wherein the light guide plate includes a first light incident plane, a second light incident plane and a light emitting plane. The first light incident plane is disposed opposite to a light emitting plane of the light source. A plurality of caves are disposed on the second light incident plane to enhance the environmental light. The present invention raises an incident amount of the environmental light.

First claim

What is claimed is:

1 . A transparent display device, comprising:
a display module, which comprises:
a liquid crystal display panel configured to display image pixels;
polarizers disposed on a light emitting plane and a light incident plane of the liquid crystal display panel to form a corresponding polarizing light; and
an optical thin film disposed on the polarizer of the light emitting plane of the liquid crystal display panel to improve a display performance of the liquid crystal display panel; and
a backlight module, which comprises:
a light source used to provide emitting light; and
a light guide plate used to guide the emitting light of the light source and environmental light into the liquid crystal display panel;
wherein the light guide plate comprises a first light incident plane, a second light incident plane and a light emitting plane, the first light incident plane is disposed opposite to a light emitting plane of the light source, a plurality of caves are disposed on the second light incident plane to enhance the environmental light; the light emitting plane of the light guide plate is disposed opposite to the light incident plane of the liquid crystal panel, the second light incident plane of the light guide plate and the light emitting plane of the light guide plate are disposed on two ends of the light guide plate; a plurality of protrusions disposed on the second light incident plane of the light guide plate to enhance the environmental light.

2 . The transparent display device according to claim 1 , wherein the backlight module further comprises:
a brightness enhancement film disposed on the second light incident plane of the light guide plate.

3 . The transparent display device according to claim 1 , wherein the caves and the protrusions are disposed in interlacing.

4 . The transparent display device according to claim 1 , wherein the caves are shaped in triangles, trapezoids, or ovals.

5 . The transparent display device according to claim 1 , wherein the protrusions are shaped in triangles, trapezoids, or ovals.

6 . The transparent display device according to claim 1 , wherein the optical thin film is an anti-reflective film.

7 . A transparent display device, comprising:
a display module, which comprises:
a liquid crystal display panel configured to display image pixels;
polarizers disposed on a light emitting plane and a light incident plane of the liquid crystal display panel to form a corresponding polarizing light; and
an optical thin film disposed on the polarizer of the light emitting plane of the liquid crystal display panel to improve a display performance of the liquid crystal display panel; and
a backlight module, which comprises:
a light source used to provide emitting light; and
a light guide plate used to guide the emitting light of the light source and environmental light into the liquid crystal display panel;
wherein the light guide plate comprises a first light incident plane, a second light incident plane, and a light emitting plane, the first light incident plane is disposed opposite to a light emitting plane of the light source, a plurality of caves are disposed on the second light incident plane to enhance the environmental light.

8 . The transparent display device according to claim 7 , wherein the light emitting plane of the light guide plate is disposed opposite to the light incident plane of the liquid crystal panel, the second light incident plane of the light guide plate and the light emitting plane of the light guide plate are disposed on two ends of the light guide plate.

9 . The transparent display device according to claim 7 , wherein the backlight module further comprises:
a brightness enhancement film disposed on the second light incident plane of the light guide plate.

10 . The transparent display device according to claim 7 , wherein a plurality of protrusions are disposed on the second light incident plane of the light guide plate to enhance the environmental light.

11 . The transparent display device according to claim 10 , wherein the caves and the protrusions are disposed in interlacing.

12 . The transparent display device according to claim 11 , wherein the caves are shaped in triangles, trapezoids, or ovals.

13 . The transparent display device according to claim 11 , wherein the protrusions are shaped in triangles, trapezoids, or ovals.

14 . The transparent display device according to claim 11 , wherein the optical thin film is an anti-reflective film.

15 . A transparent display device, comprising:
a display module, which comprises:
a liquid crystal display panel configured to display image pixels;
polarizers disposed on a light emitting plane and a light incident plane of the liquid crystal display panel to form a corresponding polarizing light; and
an optical thin film disposed on the polarizer of the light emitting plane of the liquid crystal display panel to improve a display performance of the liquid crystal display panel; and
a backlight module, which comprises:
a light source used to provide emitting light; and
a light guide plate comprises a first light incident plane, a second light incident plane, and a light emitting plane; the light guide plate used to guide the emitting light of the light source and environmental light into the liquid crystal display panel, the first light incident plane is disposed opposite to a light emitting plane of the light source;
an optical element disposed on the second light incident plane of the light guide plate, a plurality of caves are disposed on a light incident plane of the optical element to enhance the environmental light.

16 . The transparent display device according to claim 15 , wherein the light emitting plane of the light guide plate is disposed opposite to the light incident plane of the liquid crystal panel, the second light incident plane of the light guide plate and the light emitting plane of the light guide plate are disposed on two ends of the light guide plate.

17 . The transparent display device according to claim 7 , wherein the backlight module further comprises:
a brightness enhancement film disposed on the light incident plane of the optical element.

18 . The transparent display device according to claim 11 , wherein the caves are shaped in triangles, trapezoids, or ovals.

19 . The transparent display device according to claim 11 , wherein the optical thin film is an anti-reflective film.

Assignees

• Shenzhen China Star Optoelect

Inventors

• Hsiao Yu-Chun
• Chen Shih Hsiang
• Tang Guofu
• Li Quan
• Lv Chengling
• Guo Chaofan

Classifications

• G02F2001/133618

  Physics · mapped topic

• G02B6/0016 Primary

  Grooves, prisms, gratings, scattering particles or rough surfaces · CPC title

• G02F1/133528

  Polarisers · CPC title

• G02B6/0068

  Arrangements of plural sources, e.g. multi-colour light sources · CPC title

• G02B6/0023

  provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source · CPC title