3 dimensional image display device

• US 9,900,586 B2
• Filed: 01/13/2014
• Issued: 02/20/2018
• Est. Priority Date: 09/28/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Koh, Jai-Hyun, You, Bong-Hyun, Bae, Jae-Sung
• Primary Examiner(s): Czekaj, Dave
• Assistant Examiner(s): SULLIVAN, TYLER
• Application Number:
  US14/153,214
• Publication Number:
  US 20140160258A1
• Time in Patent Office: 1,499 Days
• Field of Search: None
• CPC Class Codes: H04N 1/6005 with luminance or chrominance signals, e.g. LC1C2, HSL or YUV
• CPC Class Codes: H04N 13/30 Image reproducers optical systems for producing stereoscopic or other three-dimensional effects G02B30/00
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof

Abstract

A 3D image display device includes a display device including a plurality of pixels and displaying each of a left-eye image and a right-eye image. The display device inserts an black image between the left-eye image and the right-eye image such that the left-eye image is displayed for part of four frames and the black image is displayed for the remaining frames and the right-eye image is displayed for part of four other frames and the black image is displayed for the remaining other frames.

Claims

1. A 3D image display device, comprising:

a display device including a plurality of pixels and displaying each of a left-eye image and a right-eye image,

wherein the display device inserts a black image between the left-eye image and the right-eye image such that the left-eye image is displayed for part of four frames and the black image is displayed for the remaining frames and the right-eye image is displayed for part of four other frames and the black image is displayed for the remaining other frames,

wherein data representing an additional luminance is additionally applied to at least one of the left-eye image, the right-eye image, and the black image to display an image,

wherein the 3D image display device further comprises a 3D image processor adding the data representing the additional luminance to image data for application to a frame,

wherein the 3D image processor comprises;

a gamma converter generating gamma-converted data from image data;

a luminance improver improving the luminance of the gamma-converted data; and

a luminance improvement rate provider,

wherein the luminance improver comprises a luminance improvement data generator generating data having improved luminance depending on a luminance improvement rate provided from the luminance improvement rate provider,

wherein the luminance improvement data generator generates data corresponding to a total of four frames through Equation 2 if a result of Equation 1 is true, and generates data corresponding to the total four frames through Equation 3 if the result is false;

L*(MBTR+1)<

MDL 

 

[Equation 1]

LN<

=L*(MBTR+1)

LN+1<

=L*(MBTR+1)

LN+2<

=0 

 

[Equation 2]

LN<

=MDL

LN+1<

=MDL

LN+2<

={L*(MBTR+1)−

MDL}*2, 

 

[Equation 3]

wherein L represents luminance data inputted into the luminance improvement data generator, MBTR represents a max boost up threshold rate, MDL represents a maximum displayable luminance, and LN, LN+1, and LN+2 represent luminance data of an N frame, luminance data of an N+1 frame, and luminance data of an N+2 frame, respectively.

2. The device of claim 1, further comprising glasses comprising a left lens and a right lens, wherein both the right lens and the left lens are in an off state while the left-eye image and the right-eye image are overlapped with each other in the display device.

3. The device of claim 1, wherein the 3D image processor further comprises:

a reverse gamma converter reverse gamma converting the data having the improved luminance.

4. The device of claim 3, wherein the gamma converter generates output data having a bit number higher than the data input thereto, and wherein the output data is generated by a lookup table.

5. The device of claim 3,

wherein the luminance improver further includes a frame memory storing the data generated by the luminance improvement data generator.

6. The device of claim 3, wherein the reverse gamma converter generates output data having a bit number less than the data input thereto.

7. The device of claim 3, wherein the 3D image processor further includes a balance rate provider, and

wherein the balance rate provider provides a rate for determining which of two frames data representing an additional luminance is to be more greatly added to when additional luminances are to be applied to the images of both first frame and second frames.

8. The device of claim 7, wherein the balance rate is applied to the luminance improver and considered when data corresponding to a total four frames are generated in the luminance improver.