Transparent display apparatus with adjustable transmissive area and a method for controlling the same

Patent metadata

Field	Value
Publication number	US-9594286-B2
Application number	US-201314140187-A
Country	US
Kind code	B2
Filing date	Dec 24, 2013
Priority date	Dec 31, 2012
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

There are provided a transparent display apparatus and a method for controlling the same. The transparent display apparatus includes a transparent display unit that includes a plurality of first pixels having an emissive area on which an image is displayed and a transmissive area on which a background is projected; a light control unit that includes a plurality of second pixels disposed on one surface of the transparent display unit; and a transmittance control device that extracts at least one object from an image displayed by the transparent display unit and controls transmittance of an area, which corresponds to the light control unit and the extracted object.

First claim

What is claimed is:

1. A transparent display apparatus, comprising:
a transparent display unit having an emissive area for display of an image and a transmissive area for transmitting at least a portion of external light incident on the transparent display apparatus;
at least one control device to identify an object in the image and control adjustment of the portion of the external light transmitted through the transmissive area of the transparent display unit in an object area corresponding to the object; and
a light control unit overlapping with the transparent display unit, the light control unit having an adjustable transmittance to the external light,
wherein the control device controls adjustment of the portion of the external light transmitted through the transmissive area of the transparent display unit by controlling adjustment of the adjustable transmittance of the light control unit in the object area corresponding to the object, and
wherein the transparent display unit comprises a plurality of first pixels that include the emissive area and the transmissive area and wherein the light control unit comprises a plurality of second pixels.

2. The transparent display apparatus of claim 1 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on at least one characteristic of the object.

3. The transparent display apparatus of claim 2 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on a size of the object.

4. The transparent display apparatus of claim 2 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on a luminance of the object.

5. The transparent display apparatus of claim 2 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on a type of the object.

6. The transparent display apparatus of claim 2 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on a movement of the object.

7. The transparent display apparatus of claim 2 , wherein the control device controls adjustment of the adjustable transmittance of the light control unit in the object area based on a color of the object.

8. The transparent display apparatus of claim 1 , wherein plurality of first pixels and the plurality of second pixels are different in number and size.

9. The transparent display apparatus of claim 1 , wherein a size of the object area corresponding to the object is same as a size of the object.

10. The transparent display apparatus of claim 1 , wherein the object area corresponding to the object is larger than and surrounds a boundary of the object on all sides by a pre-determined number of pixels.

11. The transparent display apparatus of claim 1 , wherein the control device identifies the object in the image with an image matching algorithm.

12. The transparent display apparatus of claim 1 , wherein the control device identifies the object in the image based on coordinates indicating a position of the object.

13. A transparent display apparatus, comprising:
a transparent display unit having an emissive area for display of an image and a transmissive area for transmitting at least a portion of external light incident on the transparent display apparatus;
at least one control device to identify an object in the image and control adjustment of the portion of the external light transmitted through the transmissive area of the transparent display unit in an object area corresponding to the object; and
a light control unit overlapping with the transparent display unit, the light control unit having an adjustable transmittance to the external light,
wherein the control device controls adjustment of the portion of the external light transmitted through the transmissive area of the transparent display unit by controlling adjustment of the adjustable transmittance of the light control unit in the object area corresponding to the object, and
wherein the control device is configured to control the adjustable transmittance of the light control unit to a first transmittance level in a first portion of the object area within a boundary of the object and to control the adjustable transmittance of the light control unit to a second transmittance level different than the first transmittance level in a second portion of the object area outside of the boundary of the object.

14. The transparent display apparatus according to claim 13 , wherein the second transmittance level is higher than the first transmittance level.

15. A method of operation in a transparent display apparatus that comprises a light control unit overlapping with a transparent display unit, the method comprising:
identifying an object in an image, the image for display on an emissive area of the transparent display unit, the transparent display unit also including a transmissive area for transmitting at least a portion of external light incident on the transparent display apparatus;
displaying the image in the emissive area of the transparent display unit; and
adjusting the portion of the external light transmitted through the transmissive area of the transparent display unit in an object area corresponding to the object by controlling an adjustable transmittance of the light control unit to a first transmittance level in a first portion of the object area within a boundary of the object and controlling the adjustable transmittance of the light control unit to a second transmittance level different than the first transmittance level in a second portion of the object area outside of the boundary of the object.

16. The method of claim 15 , wherein the adjustable transmittance of the light control unit is adjusted based on at least one characteristic of the object.

17. A transparent display apparatus, comprising:
a transparent display unit having a plurality of first pixels including an emissive area for display of an image and a transmissive area for transmitting at least a portion of external light incident on the transparent display apparatus;
a light control unit overlapped with the transparent display unit having a plurality of second pixels, the light control unit having an adjustable transmittance to the external light; and
at least one control device configured to identify an object containing information on the basis of the object's surroundings on the basis of at least one characteristics of the object in the image and determine an area of the light control unit corresponding to the object,
wherein the at least one control device is configured to control the transmittance of the area of the light control unit corresponding to the object by controlling at least some of the plurality of second pixels corresponding to the object, and
wherein the at least one control device is configured to control the transmittance of a remaining area of the light control unit other than the area corresponding to the object by controlling certain second pixels corresponding to the remaining area of the light control unit other than the area corresponding to the object.

18. The transparent display apparatus of claim 17 , wherein a total number of the first pixels are more than a total number of the second pixels.

19. The transparent display apparatus of claim 17 , wherein a size of first pixel is smaller than a

Assignees

• Lg Display Co Ltd

Inventors

• Kim Ilho
• Seo Junghoon
• Hong Kipyo
• Yu Byungchun
• Lee Sanglyn

Classifications

• G02F2203/01

  transmissive · CPC title

• G02F2201/44

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

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H01L51/5284

  Electricity · mapped topic

• H01L2251/5315

  Electricity · mapped topic