Display apparatus and method for driving the same

Patent metadata

Field	Value
Publication number	US-2016358541-A1
Application number	US-201515024069-A
Country	US
Kind code	A1
Filing date	Jul 22, 2015
Priority date	Feb 16, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

The present disclosure provides a display apparatus and a method for driving the same, which relates to a display field and solves an issue of difficulty of implementing a high resolution by changing the substrate in the present display panel. The display apparatus comprises a display panel, an light modulator, a first driving module and second driving module, wherein the display panel comprises a plurality of pixels including n virtual pixels; the light modulator is provided at a light outputting side of the display panel and comprises a plurality of light modulation units corresponding to the pixels, and the light modulation unit comprises n light modulation areas corresponding to the virtual pixels; and one frame of image comprises n pieces of sub-frame images; the first driving module is configured to drive the display panel to display n continuous sub-frame images in one frame of image in turn; the second driving module is configured to drive the n th light modulation area of the light modulation unit to be a light transmitted region in the n th sub-frame image in turn, and to drive the remaining (n-1) light modulation areas to be a light shielding region, in which N is a positive integer larger than or equal to 2.

First claim

1 . A display apparatus, comprising a display panel, an light modulator, a first driving module and second driving module, wherein the display panel comprises a plurality of pixels including n virtual pixels; the light modulator is provided at a light outputting side of the display panel and comprises a plurality of light modulation units corresponding to the pixels, and the light modulation unit comprises n light modulation areas corresponding to the virtual pixels; and one frame of image comprises n pieces of sub-frame images;
the first driving module is configured to drive the display panel to display n continuous sub-frame images in one frame of image in turn; and the second driving module is configured to drive the n th light modulation area of the light modulation unit to be a light transmitted region in the n th sub-frame image in turn, and to drive the remaining (n-1) light modulation areas to be a light shielding region, in which N is a positive integer larger than or equal to 2.

2 . The display apparatus according to claim 1 , wherein the pixel comprise two virtual pixels, the light modulation unit comprises two light modulation areas corresponding to the virtual pixels, respectively, and one frame of image comprises two pieces of sub-frame images;
the first driving module drives the display panel to display the first sub-frame images in one frame of image, and the second driving module drives the two light modulation areas of the light modulation unit alternatively to be the light transmitted region and the light shielding region; the first driving module drives the display panel to display the second sub-frame images in the one frame of image, and the second driving module drives the light transparency of the respective light modulation areas of the light modulation unit to be opposite to those of the light modulation regions when the first sub-frame image is displayed.

3 . The display apparatus according to claim 2 , wherein the virtual pixels of the display panel are arranged in an array;
the first driving module drives the display panel to display the first sub-frame images in one frame of image, and the second driving module drives any two adjacent light modulation areas in one row/column alternatively to be the light transmitted region and the light shielding region.

4 . The display apparatus according to claim 1 , wherein the light modulator comprises a light valve provide at each of the light modulation regions, and the light valve is configured to control the light modulation region to be light transmitted or light shielding.

5 . The display apparatus according to claim 1 , wherein the light modulator comprises a strip light valve provided at each row or each column of the light modulation regions; or
The light modulator comprises a strip light valve provided at two adjacent rows or at two adjacent columns of the light modulation regions, wherein the two adjacent rows of the light modulation regions correspond to two corresponding adjacent rows of pixels and the two adjacent columns of the light modulation regions correspond to two corresponding adjacent columns of pixels.

6 . The display apparatus according to claim 4 , wherein the light valve is a liquid crystal light valve, a MEMS light valve or an electronic paper light valve.

7 . The display apparatus according to claim 1 , wherein the display apparatus further comprises a touch electrode for detecting a touch position.

8 . The display apparatus according to claim 7 , wherein the touch electrode is provided on the light modulator.

9 . The display apparatus according to claim 8 , wherein the light valve is the liquid crystal light valve; the light modulator comprises an upper substrate, a lower substrate and a liquid between the upper substrate and the lower substrate; the touch electrode and the sensing electrode are both provided on the upper substrate, or the touch electrode and the sensing electrode are both provided on the lower substrate, or the touch electrode and the sensing electrode are formed on the upper substrate and the lower substrate, respectively.

10 . The display apparatus according to claim 1 , wherein the display panel is a display panel of an organic light emitting diode.

11 . The display apparatus according to claim 10 , wherein the display apparatus of the organic light emitting diode is a double-side display panel and a light modulator is provided at both sides of the display panel of the organic light emitting diode.

12 . A method for driving a display apparatus, wherein the display apparatus comprises a display panel, an light modulator, a first drive module and second driving module, wherein the display panel comprises a plurality of pixels including n virtual pixels; the light modulator is provided at a light outputting side of the display panel and comprises a plurality of light modulation units corresponding to the pixels, and the light modulation unit comprises n light modulation areas corresponding to the virtual pixels; and one frame of image comprises n pieces of sub-frame images;
the method for driving the display apparatus comprising the following steps: driving the display panel to display the n continuous sub-frame images in one frame of image in turn; and driving the n th light modulation area of the light modulation unit to be a light transmitted region in the n th sub-frame image in turn, and to drive the remaining (n-1) light modulation areas to be a light shielding region, in which N is a positive integer larger than or equal to 2.

13 . The method for driving a display apparatus according to claim 12 , wherein the pixel comprise two virtual pixels, and one frame of image comprises two pieces of sub-frame images; the light modulation unit comprises two light modulation areas corresponding to the virtual pixels, respectively;
wherein the step of driving the display panel to display the n continuous sub-frame images in one frame of image in turn and driving the n th light modulation area of the light modulation unit to be a light transmitted region in the n th sub-frame image in turn, and driving the remaining (n-1) light modulation areas to be a light shielding region, in which N is a positive integer larger than or equal to 2, is particularly implemented by the following steps of: when the display panel is driven to display the first sub-frame images in one frame of image, the two light modulation areas of the light modulation unit are driven alternatively to be the light transmitted region and the light shielding region; when the display panel is driven to display the second sub-frame images in the one frame of image, the light transparency of the respective light modulation areas of the light modulation unit is driven to be opposite to those of the light modulation regions when the first sub-frame image is displayed.

14 . The method for driving a display apparatus according to claim 13 , wherein the virtual pixels of the display panel are arranged in an array;
when the display panel is driven to display the first sub-frame images in one frame of image, any two adjacent light modulation areas in one row/column are driven alternatively to be the light transmitted region and the light shielding region.

15 . The display apparatus according to claim 5 , wherein the light valve is a liquid crystal light valve, a MEMS light valve or an electronic paper light valve.

16 . The method for driving a display apparatus according to claim 12 , further comprising, in the light modulator, proving a light valve provide at each of the light modulation regions, and the light

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Yanzhao
• Wang Long
• Zhou Li
• Jiang Feng
• Park Han-Jun
• Lee Chung-Chun

Classifications

• G09G3/3208 Primary

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G3/2025

  the sub-frames having all the same time duration · CPC title

• G09G2300/023

  Display panel composed of stacked panels · CPC title

• G09G2300/0443

  with several sub-pixels for the same colour in a pixel, not specifically used to display gradations (G09G3/364 takes precedence) · CPC title

• G09G2340/0407

  Resolution change, inclusive of the use of different resolutions for different screen areas · CPC title