2D/3D switchable display panel, and display method and display device thereof

Patent metadata

Field	Value
Publication number	US-9874763-B2
Application number	US-201515106191-A
Country	US
Kind code	B2
Filing date	Sep 10, 2015
Priority date	May 25, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

The embodiment of the present application discloses a 2D/3D switchable display panel, and a display method and a display device thereof, so as to solve the problem of poor display effect in 2D display mode of existing 2D/3D display panel. The 2D/3D switchable display panel includes a self-luminescent OLED display panel and a LCD panel provided with no color resistance layer, which LCD display panel is disposed on the display side of the OLED display panel. The OLED display panel is used for display images when the 2D/3D switchable display panel operates in 3D display mode while functions as a backlight source module when the 2D/3D switchable display panel operates in 2D display mode; whereas the LCD display panel functions as a grating when the 2D/3D switchable display panel operates in 3D display mode while displays images when the 2D/3D switchable display panel operates in 2D display mode.

First claim

What is claimed is:

1. A 2D/3D switchable display panel, comprising:
an OLED display panel which is self-luminescent, and
a LCD panel which is provided with no color resistance layer and disposed on a display side of the OLED display panel,
wherein the OLED display panel is configured to display an image when the 2D/3D switchable display panel operates in a 3D display mode, and to act as a backlight source module when the 2D/3D switchable display panel operates in a 2D display mode;
wherein the LCD display panel is configured to act as a grating when the 2D/3D switchable display panel operates in the 3D display mode, and to display an image when the 2D/3D switchable display panel operates in the 2D display mode; and
wherein in the 2D display mode where the OLED display panel is configured to act as a backlight source module and the LCD panel is configured to display an image thereof, both the OLED display panel and the LCD panel are configured such that a refresh rate of the OLED display panel is set to be at least three times of a refresh rate of the LCD panel, and R, G, B color lights are emitted by the OLED display panel so as to be used as backlight for the LCD panel in different time periods respectively within a display duration of a frame of image, an emission duration for each of the R, G, B color lights corresponding to a refreshment duration of the LCD panel.

2. The 2D/3D switchable display panel according to claim 1 ,
wherein the LCD panel comprises a color filter substrate, an array substrate and a liquid crystal layer provided between the color filter substrate and the array substrate, the color filter substrate and the array substrate and the liquid crystal layer being disposed to be cell aligned; and
wherein the array substrate is provided with a pixel unit array for displaying images.

3. The 2D/3D switchable display panel according to claim 2 ,
wherein the array substrate of the LCD panel is provided with a lower polarizer sheet at a side thereof facing away from the liquid crystal layer; and
wherein the color filter substrate of the LCD panel is provided with an upper polarizer sheet at a side thereof facing away from the liquid crystal layer.

4. The 2D/3D switchable display panel according to claim 3 , wherein the LCD panel further comprises a lenticular lens layer arranged at a side, facing away from the liquid crystal layer, of the color filter substrate.

5. The 2D/3D switchable display panel according to claim 1 , wherein an area of a region occupied by each pixel on the OLED display panel is not only larger than but also an integral multiple of an area of a region occupied by each pixel on the LCD panel.

6. The 2D/3D switchable display panel according to claim 1 , wherein a highest refresh rate of the OLED display panel is at least three times of a lowest refresh rate of the LCD panel.

7. The 2D/3D switchable display panel according to claim 2 ,
wherein the OLED display panel comprises a display substrate and a packaging cover plate; and
wherein an adhesive portion is interposed between the LCD panel and the OLED display panel, and the array substrate of the LCD panel is adhered to the cover plate by the adhesive portion.

8. The 2D/3D switchable display panel according to claim 2 ,
wherein the OLED display panel only comprises a display substrate and a display component arranged on the display substrate, the display substrate defining a display zone around which an adhesive portion is provided at a periphery of the display substrate of the OLED display panel; and
wherein the array substrate of the LCD panel is adhered to the display substrate of the OLED display panel by means of the adhesive portion.

9. A 2D/3D switchable display device, comprising the 2D/3D switchable display panel according to claim 1 .

10. A display method for operating the 2D/3D switchable display panel according to claim 1 , comprising steps of:
operating the 2D/3D switchable display panel in the 3D display mode by configuring the OLED display panel to display an image thereon and configuring the LCD panel to act as a grating; and
operating the 2D/3D switchable display panel in the 2D display mode by configuring the LCD panel to display an image thereon and configuring the OLED display panel to act as a backlight source module.

11. The display method according to claim 10 , wherein the step of operating the 2D/3D switchable display panel in the 3D display mode by configuring the OLED display panel to display an image thereon and configuring the LCD panel to act as a grating comprises steps of:
configuring the OLED display panel to display an image thereon; and
configuring the LCD panel to display in a grating displaying mode and forming both a left-eye image and a right-eye image by passing the image displayed by the OLED display panel through the LCD panel such that the 2D/3D switchable display panel is operated in the 3D display mode.

12. The display method according to claim 10 , wherein the LCD panel comprises a lenticular lens layer arranged at a side, facing away from the liquid crystal layer, of the color filter substrate, and the step of operating the 2D/3D switchable display panel in the 3D display mode by configuring the OLED display panel to display an image thereon and configuring the LCD panel to act as a grating comprises steps of:
configuring the OLED display panel to display an image thereon; and
configuring the LCD panel to cooperate with the lenticular lens layer to display and forming both a left-eye image and a right-eye image by passing the image displayed by the OLED display panel through both of the LCD panel and the lenticular lens layer such that the 2D/3D switchable display panel is operated in the 3D display mode.

13. The display method according to claim 10 , wherein the step of operating the 2D/3D switchable display panel in the 2D display mode by configuring the LCD panel to display an image thereon and configuring the OLED display panel to act as a backlight source module comprises steps of:
adjusting deflection angles of liquid crystal molecules in the liquid crystal layer of the LCD display panel at regions thereof which are occupied by the pixels of the LCD display respectively, based on grayscales of the R, G, B colors to be displayed by the pixels within the emission duration of each of the R, G, B color lights, so as to change respective light transmittance of the regions which are occupied by the pixels to accommodate display of grayscales of the R, G, B colors to be displayed so as to pass respective ones of the R, G, B color lights with desired grayscale therethrough and to display the R, G, B colors respectively thereon.

Assignees

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

Inventors

• Lu Pengcheng
• Dong Xue
• Chen Xiaochuan
• Yang Ming
• Wang Qian

Classifications

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G09G3/003 Primary

  to produce spatial visual effects · CPC title

• G02F2201/44

  Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers · CPC title

• G02F2201/52

  RGB geometrical arrangements · CPC title

• G02F1/133606

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