Display switchable between 2d and 3d modes and control method thereof

Patent metadata

Field	Value
Publication number	US-2016353097-A1
Application number	US-201414433637-A
Country	US
Kind code	A1
Filing date	Dec 30, 2014
Priority date	Dec 3, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

The present invention discloses a display switchable between 2D and 3D modes and a control method thereof. The display comprises a first lens panel, a first display panel, a second lens panel and a second display panel which sequentially stack-up, wherein the first lens panel and the second lens panel respectively comprise a first lens unit and a second lens unit aligned along a predetermined direction, and the first lens unit and the second lens unit can switch between a focused state, which can refract an entering light and a non focused state, which do not refract the entering light, wherein the first lens unit and the second lens unit stagger with each other along the predetermined direction. With the aforesaid arrangement, the present invention preferably improves the resolution and viewing angle of the display at the same time.

First claim

What is claimed is:

1 . A display switchable between 2D and 3D modes, wherein the display comprises a first lens panel, a first display panel, a second lens panel and a second display panel which sequentially stack-up, wherein the first lens panel and the second lens panel respectively comprise a first lens unit and a second lens unit aligned along a predetermined direction, and the first lens unit and the second lens unit can switch between a focused state, which can refract an entering light and a non focused state, which do not refract the entering light, wherein the first lens unit and the second lens unit stagger with each other along the predetermined direction, and a pitch of the first lens unit and the second lens unit along the predetermined direction are the same, and a staggered distance of the first lens unit and the second lens unit along the predetermined direction is a half of the pitch, and the display further comprises a control unit, and the control unit controls the display to alternately switch between a first state and a second state under the 3D mode, wherein in the first state, the first display panel is in a display state, and the first lens unit of the first lens panel is in the focused state to focus a element image displayed by the first display panel and project to an observer, and in the second state, the first display panel is in a transparent state, and the first lens unit of the first lens panel is in the non focused state, and the second display panel is in the display state, and the second lens unit of the second lens panel is in the focused state to focus a element image displayed by the second display panel for transmitting the focused element image through the first display panel and the first lens panel and projecting to the observer.

2 . The display according to claim 1 , wherein the first lens panel comprises a first transparent substrate, a second transparent substrate which are oppositely positioned, and a first liquid crystal layer packaged between the first transparent substrate and the second transparent substrate, and the second lens panel comprises a third transparent substrate, a fourth transparent substrate which are oppositely positioned, and a second liquid crystal layer packaged between the third transparent substrate and the fourth transparent substrate, and the first transparent substrate is constructed by connecting a plurality of first curved structures which sections along the predetermined direction are arches, and the third transparent substrate is constructed by connecting a plurality of second curved structures which sections along the predetermined direction are arches, and the first curved structure and the second curved structure stagger along the predetermined direction, and both the first liquid crystal layer and the second liquid crystal layer comprise a plurality of liquid crystal molecules, and a first axis refractive index of the liquid crystal molecules is larger than refractive indexes of the first transparent substrate and the third transparent substrate, and a second axis refractive index of the liquid crystal molecules is equal to the refractive indexes of the first transparent substrate and the third transparent substrate.

3 . The display according to claim 2 , wherein widths of the first curved structure and the second curved structure along the predetermined direction are equal, and a staggered distance of the first curved structure and the second curved structure along the predetermined direction is a half of the width.

4 . The display according to claim 1 , wherein the control unit controls the first display panel to be in the display state, and the first lens unit of the first lens panel to be in the non focused state, or controls the first display panel to be in the transparent state, and the second display panel to be in the display state under 2D mode, and both the first lens unit of the first lens panel and the second lens unit of the second lens panel are in the non focused state.

5 . The display according to claim 2 , wherein the control unit is employed to control the liquid crystal molecules to twist, wherein as a first axis of the liquid crystal molecules is twisted to be parallel with the first display panel, the corresponding first lens unit or the corresponding second lens unit is in the focused state, and as the first axis of the liquid crystal molecules is twisted to be perpendicular with the first display panel, the corresponding first lens unit or the corresponding second lens unit is in the non focused state.

6 . The display according to claim 2 , wherein the display further comprises a first cell and a second cell, and the first cell is positioned between the first lens panel and the first display panel, and the second cell is positioned between the second lens panel and the second display panel, and the control unit respectively controls polarization states of polarized lights entering the first lens unit and the second lens unit by controlling the first cell and the second cell and accordingly, to control the first lens unit and the second lens unit to switch between the focused state and the non focused state.

7 . A display switchable between 2D and 3D modes, wherein the display comprises a first lens panel, a first display panel, a second lens panel and a second display panel which sequentially stack-up, wherein the first lens panel and the second lens panel respectively comprise a first lens unit and a second lens unit aligned along a predetermined direction, and the first lens unit and the second lens unit can switch between a focused state, which can refract an entering light and a non focused state, which do not refract the entering light, wherein the first lens unit and the second lens unit stagger with each other along the predetermined direction.

8 . The display according to claim 7 , wherein a pitch of the first lens unit and the second lens unit along the predetermined direction are the same, and a staggered distance of the first lens unit and the second lens unit along the predetermined direction is a half of the pitch.

9 . The display according to claim 7 , wherein the first lens panel comprises a first transparent substrate, a second transparent substrate which are oppositely positioned, and a first liquid crystal layer packaged between the first transparent substrate and the second transparent substrate, and the second lens panel comprises a third transparent substrate, a fourth transparent substrate which are oppositely positioned, and a second liquid crystal layer packaged between the third transparent substrate and the fourth transparent substrate, and the first transparent substrate is constructed by connecting a plurality of first curved structures which sections along the predetermined direction are arches, and the third transparent substrate is constructed by connecting a plurality of second curved structures which sections along the predetermined direction are arches, and the first curved structure and the second curved structure stagger along the predetermined direction, and both the first liquid crystal layer and the second liquid crystal layer comprise a plurality of liquid crystal molecules, and a first axis refractive index of the liquid crystal molecules is larger than refractive indexes of the first transparent substrate and the third transparent substrate, and a second axis refractive index of the liquid crystal molecules is equal to the refractive indexes of the first transparent substrate and the third transparent substrate.

10 . The display according to claim 9 , wherein widths of the first curved structure and the second curved structure along the predetermined direction are equal, and a staggered

Assignees

• Shenzhen China Star Optoelect

Inventors

• Fang Bin

Classifications

• H04N13/359 Primary

  Switching between monoscopic and stereoscopic modes · CPC title

• G02B30/27

  involving lenticular arrays · CPC title

• H04N13/305

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• G02B30/25

  using polarisation techniques · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title