Abstract:

A liquid crystal display includes: a pair of liquid crystal shutter
glasses; a liquid crystal panel which alternately displays a left image
and a right image formed in a predetermined scanning direction according
to a predetermined scanning cycle; a glasses controller which outputs a
control signal to open and close a left glass and a right glass of the
liquid crystal shutter glasses synchronizing with the scanning cycle; a
light source unit which supplies light to the liquid crystal panel; and a
light source driver which supplies driving power to the light source unit
to emit light to the liquid crystal panel in the scanning direction
posterior to the left and right images.

Claims:

1. A liquid crystal display, comprising:a pair of liquid crystal shutter
glasses;a liquid crystal panel which alternately displays a left image
and a right image formed in a predetermined scanning direction according
to a predetermined scanning cycle;a glasses controller which outputs a
control signal to open and close a left glass and a right glass of the
liquid crystal shutter glasses synchronizing with the scanning cycle;a
light source unit which supplies light to the liquid crystal panel; anda
light source driver which supplies driving power to the light source unit
to emit light to the liquid crystal panel in the scanning direction
posterior to the left and right images.

2. The liquid crystal display according to claim 1, wherein the light
source unit comprises a plurality of regions which is divided in a
direction substantially perpendicular to the scanning direction, and the
light source driver sequentially and individually supplies the driving
power to the regions synchronizing with the scanning cycle.

3. The liquid crystal display according to claim 1, wherein the light
source driver cuts off the driving power supplied to the light source
unit not to emit light to the liquid crystal panel during a predetermined
blank period.

4. The liquid crystal display according to claim 3, wherein the blank
period is formed between a left image frame and right image frame.

5. The liquid crystal display according to claim 3, wherein the blank
period is formed while a single frame is formed.

6. The liquid crystal display according to claim 2, wherein the light
source unit further comprises a wall which is formed between the regions.

7. The liquid crystal display according to claim 1, further comprising a
light adjusting member which is disposed between the liquid crystal panel
and the light source unit, and adjusts a diffusion of light emitted by
the light source unit.

9. A control method of a liquid crystal display which has a liquid crystal
panel alternately displaying a left image signal and a right image signal
according to a predetermined scanning cycle and a pair of liquid crystal
shutter glasses opening and closing a left glass and a right glass
thereof, the control method comprising:opening and closing the left glass
and the right glass of the liquid crystal shutter glasses synchronizing
with the scanning cycle while an image signal is displayed on the liquid
crystal panel in a predetermined scanning direction; andsupplying light
to the liquid crystal panel in the scanning direction posterior to the
image signal.

10. The control method according to claim 9, wherein the liquid crystal
panel is divided into predetermined image regions, andthe supplying the
light comprises supplying the light to the image regions sequentially and
individually.

11. The control method according to claim 9, further comprising shutting
down light emitted to the liquid crystal panel during a predetermined
blank period.

12. The control method according to claim 9, wherein the liquid crystal
panel displays 120 frames per second.

13. A control method in a display apparatus having a backlight unit
divided into a plurality of portions, the method comprising:receiving an
input video signal having a plurality of neighboring frames or fields
with respect to time;scanning a predetermined image portion of one of the
neighboring frames or fields on a predetermined portion of a display
panel of the display apparatus;scanning in a sequentially manner
remaining image portions of one of the neighboring frames or fields on
remaining portions of the display panel; andproviding light to the
predetermined portion of the display panel after the scanning of another
portion of the display panel begins.

14. The control method according to claim 13, wherein the display
apparatus is a liquid crystal display.

15. The control method according to claim 13, wherein the display
apparatus is a 3D display apparatus.

16. The control method according to claim 13, wherein the neighboring
frames or fields correspond to left and right frames of a 3D input video
signal.

17. The control method according to claim 16, wherein the left and the
right frames are sequentially displayed to the user.

18. The control method according to claim 17, wherein the display
apparatus is used in conjunction with an eye glass having left and right
shutters operating in synchronization with the display of the left and
right frames displayed to a viewer.

19. The control method according to claim 13, wherein a blank period is
inserted between each of the neighboring frames or fields.

20. The control method according to claim 13, wherein the backlight unit
is an LED type.

21. The control method according to claim 13, wherein a blank period is
inserted within each of the neighboring frames or fields.

22. The control method according to claim 13, wherein the neighboring
frames or fields are components of a 2D video.

23. A liquid crystal display, comprising:a pair of liquid crystal shutter
glasses;a liquid crystal panel which alternately displays a left image
and a right image formed in a predetermined scanning direction according
to a predetermined scanning cycle;a glasses controller which outputs a
control signal to open and close a left glass and a right glass of the
liquid crystal shutter glasses synchronizing with the scanning cycle;a
light source unit which supplies light to the liquid crystal panel; anda
light source driver which supplies driving power to the light source unit
to emit light to the liquid crystal panel;wherein a blank period, in
which no light is provided to the liquid crystal panel, is inserted in
displaying the left image and the right image.

24. The liquid crystal display according to claim 23, wherein the blank
period is inserted between the left frame and the right frame.

25. The liquid crystal display according to claim 23, wherein the blank
period is inserted within each of the left frame and the right frame.

[0003]Apparatuses and methods consistent with the present invention relate
to a liquid crystal display and a control method thereof, and more
particularly, to a liquid crystal display which includes a pair of liquid
crystal shutter glasses, and a control method thereof.

[0004]2. Description of the Related Art

[0005]Recently, a three-dimensional display apparatus has been developed
as a next generation display apparatus. The three-dimensional display
apparatus alternately displays a left image and a right image by using a
visual difference between both eyes, or simultaneously displays left and
right images optically.

[0006]A contact type which is mainly used to simultaneously display the
left and right images overlaps a viewing zone forming optical plate to a
front surface of a display panel. If the left and right images are
alternately formed, left and right images are rapidly displayed and
liquid shutter glasses for each eye are open and closed synchronizing
with the images to realize a three-dimensional image.

[0007]If a display panel includes a liquid crystal panel, left and right
images overlap each other as the liquid crystal panel should maintain a
voltage in a single frame. Unlike a CRT (cathode ray tube) or other
display panels, the liquid crystal panel is a hold-type display panel.
Thus, a previous image signal remains on the liquid crystal panel before
completely forming a current image signal thereon after displaying the
previous image. A user recognizes such a phenomenon as an image
overlapping and a latent image. Thus, a conventional liquid crystal
display fails to provide a high quality three-dimensional image.

SUMMARY OF THE INVENTION

[0008]Accordingly, it is an aspect of the present invention to provide a
liquid crystal display which improves an image overlapping and a latent
image, and a control method thereof.

[0009]Additional aspects of the present invention will be set forth in
part in the description which follows and, in part, will be obvious from
the description, or may be learned by practice of the present invention.

[0010]The foregoing and/or other aspects of the present invention are also
achieved by providing a liquid crystal display, comprising a pair of
liquid crystal shutter glasses; a liquid crystal panel which alternately
displays a left image and a right image formed in a predetermined
scanning direction according to a predetermined scanning cycle; a glasses
controller which outputs a control signal to open and close a left glass
and a right glass of the liquid crystal shutter glasses synchronizing
with the scanning cycle; a light source unit which supplies light to the
liquid crystal panel; and a light source driver which supplies driving
power to the light source unit to emit light to the liquid crystal panel;
wherein a blank period, in which no light is provided to the liquid
crystal panel, is inserted in displaying the left image and the right
image.

[0011]Other aspects of the present invention are achieved by providing a
control method in a display apparatus having a backlight unit divided
into a plurality of portions, the method comprising the steps of
receiving an input video signal having a plurality of neighboring frames
or fields with respect to time; scanning a predetermined image portion of
one of the neighboring frames or fields on a predetermined portion of a
display panel of the display apparatus; scanning in a sequentially manner
remaining image portions of one of the neighboring frames or fields on
remaining portions of the display panel; and providing light to the
predetermined portion of the display panel after the scanning of another
portion of the display panel begins.

[0012]Other aspects of the present invention are achieved by providing a
liquid crystal display, comprising: a pair of liquid crystal shutter
glasses; a liquid crystal panel which alternately displays a left image
and a right image formed in a predetermined scanning direction according
to a predetermined scanning cycle; a glasses controller which outputs a
control signal to open and close a left glass and a right glass of the
liquid crystal shutter glasses synchronizing with the scanning cycle; a
light source unit which supplies light to the liquid crystal panel; and a
light source driver which supplies driving power to the light source unit
to emit light to the liquid crystal panel in the scanning direction
posterior to the left and right images.

[0013]The light source unit may comprise a plurality of regions which is
divided in a direction substantially perpendicular to the scanning
direction, and the light source driver sequentially and individually
supplies the driving power to the regions synchronizing with the scanning
cycle.

[0014]The light source driver may cut off the driving power supplied to
the light source unit not to emit light to the liquid crystal panel
during a predetermined blank period.

[0015]The blank period may be formed between a left image frame and right
image frame.

[0016]The blank period may be formed while a single frame is formed.

[0017]The light source unit may further comprise a wall which is formed
between the regions.

[0018]The liquid crystal display may further comprise a light adjusting
member which is disposed between the liquid crystal panel and the light
source unit, and adjusts a diffusion of light emitted by the light source
unit.

[0019]The liquid crystal panel may display 120 frames per second.

[0020]The foregoing and/or other aspects of the present invention are also
achieved by providing a control method of a liquid crystal display which
has a liquid crystal panel alternately displaying a left image signal and
a right image signal according to a predetermined scanning cycle and a
pair of liquid crystal shutter glasses opening and closing a left glass
and a right glass thereof, the control method comprising: opening and
closing the left glass and the right glass of the liquid crystal shutter
glasses synchronizing with the scanning cycle while an image signal is
displayed on the liquid crystal panel in a predetermined scanning
direction; and supplying light to the liquid crystal panel in the
scanning direction posterior to the image signal.

[0021]The liquid crystal panel may be divided into predetermined image
regions, and the supplying the light comprises supplying the light to the
image regions sequentially and individually.

[0022]The control method may further comprise shutting down light emitted
to the liquid crystal panel during a predetermined blank period.

[0023]The liquid crystal panel may display 120 frames per second.

BRIEF DESCRIPTION OF THE DRAWINGS

[0024]The above and/or other aspects of the present invention will become
apparent and more readily appreciated from the following description of
the embodiments, taken in conjunction with the accompanying drawings of
which:

[0025]FIG. 1 is a control block diagram of a liquid crystal display
according to a first exemplary embodiment of the present invention;

[0026]FIG. 2 is a schematic perspective view of the liquid crystal display
according to the first exemplary embodiment of the present invention;

[0027]FIGS. 3A to 3F illustrate a scanning method of a liquid crystal
panel and a light source unit according to the first exemplary embodiment
of the present invention;

[0028]FIG. 4 illustrates a timing of the light source unit according to
the first exemplary embodiment of the present invention;

[0029]FIG. 5 illustrates a timing of a light source unit according to a
second exemplary embodiment of the present invention;

[0030]FIG. 6 is a control flowchart to describe a control method of a
liquid crystal display according to the second exemplary embodiment of
the present invention; and

[0031]FIG. 7 illustrates a timing of a light source unit according to a
third exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENT

[0032]Hereinafter, exemplary embodiments of the present invention will be
described with reference to accompanying drawings, wherein like numerals
refer to like elements and repetitive descriptions will be avoided as
necessary.

[0033]FIG. 1 is a control block diagram of a liquid crystal display
according to a first exemplary embodiment of the present invention. FIG.
2 is a schematic perspective view of the liquid crystal display according
to the present embodiment. As shown therein, the liquid crystal display
according to the present embodiment includes a liquid crystal panel 10, a
panel driver 20, a pair of liquid crystal shutter glasses 30, a glasses
controller 40, a light source unit 50 and a light source driver 60. The
liquid crystal display further includes a light adjusting member 70 which
is disposed between the liquid crystal panel 10 and the light source unit
50.

[0034]The liquid crystal panel 10 includes a first substrate 10a having a
thin film transistor, a second substrate 10b facing the first substrate
10a and a liquid crystal layer (not shown) formed between the first
substrate 10a and second substrate 10b. The liquid crystal panel 10
includes a plurality of pixels having the thin film transistor. A gate
line and a data line are formed in the liquid crystal panel 10 to drive
the pixels. The liquid crystal panel 10 is typically rectangular. An
image is formed on the liquid crystal panel 10 in a scanning direction
corresponding to a shorter side of the liquid crystal panel 10. That is,
the image is sequentially displayed on the liquid crystal panel 10 in the
scanning direction and a single frame is formed by scanning the rows of
pixels, beginning with a first row and ending with a last row, in the
liquid crystal panel 10.

[0035]The liquid crystal panel 10 alternately displays left image and
right image per frame according to a control of the panel driver 20. The
left image and right image are displayed on the liquid crystal panel 10
at an equivalent scanning cycle T. According to the present embodiment,
an image signal which is inputted at 60 Hz is divided into left and right
images to be displayed. Thus, 120 frames per second are formed on the
liquid crystal panel 10. That is, the scanning cycle T of the image
displayed on the liquid crystal panel 10 is 1/120 second. Even though 120
frames per second are formed on the liquid crystal panel 10, a user
recognizes that 60 frames are formed for the left image and right image
combined. If an image inputted at 60 Hz is divided into left image and
right image to be outputted and if 60 frames per second are formed, a
user recognizes that 30 frames per second are displayed. If the frame
frequency is reduced, a user may recognize a change in the frames. As
continuity of the frames decreases, image quality is lowered.

[0036]According to another exemplary embodiment, an interpolation frame
may be formed to interpolate inputted image signals. As an example, 180
or 240 frames per second may be formed on the liquid crystal panel 10.

[0037]The panel driver 20 receives an image signal from the outside and
converts the image signal properly to display left image and right image.
The panel driver 20 applies the converted image signal to the liquid
crystal panel 10. The panel driver 20 includes a gate driver applying a
gate signal to the gate line and a data driver applying a data signal to
the data line, respectively, and a timing controller controlling the gate
driver and the data driver, to thereby drive and control the liquid
crystal panel 10. The panel driver 20 outputs information about the
scanning cycle T, to the glasses controller 40 and the light source
driver 60.

[0038]The glasses controller 40 outputs a control signal to the liquid
crystal shutter glasses 30 to open and close a left glass and a right
glass of the liquid crystal shutter glasses 30 synchronizing with the
scanning cycle T of the image. The glasses controller 40 may include an
infrared light emitting device to emit infrared rays to the liquid
crystal shutter glasses 30. In this case, the infrared rays correspond to
the control signal. Other types of control signals can be used such as RF
signal and Bluetooth.

[0039]The liquid crystal shutter glasses 30 alternately open and close the
left glass and the right glass according to the control signal inputted
by the glasses controller 40 so that a user views the left and right
images alternately. The liquid crystal shutter glasses 30 include a
receiver to detect and receive the control signal, and a liquid crystal
part to block and receive a left-eye image or a right-eye image according
to the received control signal. The left glass and right glass of the
liquid crystal shutter glasses 30 alternately open and closed according
to the scanning cycle T. Thus, a user may view a three-dimensional image
by recognizing the left and right images alternately with the liquid
crystal shutter glasses 30 opening and closing.

[0041]The light source unit 50 may include a lamp as a line light source,
or a light emitting diode or a nanotube light source as a point light
source. The light source unit 50 may otherwise include a surface light
source which has been widely developed. The light sources 50a according
to the present embodiment include a light emitting diode which is
uniformly formed across the rear side of the liquid crystal panel 10. The
light source unit 50 according to the present embodiment is divided into
a plurality of regions 51, 52, 53 and 54 (refer to FIG. 3A) in a
direction substantially perpendicular to the scanning direction, i.e. in
a longer-side direction of the liquid crystal panel 10. The regions 51 to
54 receive driving power from the light source driver 60. The light
sources 50a which are included in each of the regions 51 to 54 emit light
simultaneously. The regions 51 to 54 are sequentially driven in the
scanning direction.

[0042]Like the liquid crystal panel 10, the light source circuit substrate
50b is shaped like a rectangle. The light source driver 60 which will be
described later may be provided behind the light source circuit substrate
50b. As the LED generates much heat, the light source circuit substrate
50b may include aluminum having good heat conductivity. The liquid
crystal display may further include a heat pipe, a heat-dissipating fin
and a cooling fan (which are not shown) to dissipate heat without
difficulty.

[0043]The wall 50c divides the liquid crystal panel 10 into the regions 51
to 54 and prevents interference of light emitted by the regions 51 to 54.
If the independence of the light emitted by the respective regions 51 to
54 is maintained, efficiency of a scanning-driving (to be described
later) improves. Also, the image overlapping is reduced.

[0044]The light source driver 60 supplies driving power to the light
source unit 50, and sequentially supplies driving power to the regions 51
to 54 synchronizing with the scanning cycle T. That is, a single region
emits light at a time while remaining regions 51 to 54 are not driven. If
a part of the light source unit 50 emits light and the light emitting
part is scanned, the latent image and the image overlapping of the liquid
crystal panel 10 improve. That is, the hold-type liquid crystal panel 10
has a black condition not to receive light, thereby realizing an
impulsive type such as a CRT. The image is not displayed on a part of the
liquid crystal panel 10 not receiving light. Thus, the image overlapping
improves and the light is controlled not to be diffused to unnecessary
regions of the liquid crystal panel 10.

[0045]FIGS. 3A to 3F illustrate a scanning method of the liquid crystal
panel 10 and the light source unit 50 according to the present
embodiment. FIG. 4 illustrates a timing to describe a light emitting
pattern of the light source unit 50. The method of supplying driving
power to the light source unit 50 will be described with reference to
FIGS. 3A to 4. FIGS. 3A, 3C and 3E illustrate a process of scanning an
image on the liquid crystal panel 10. FIGS. 3B, 3D and 3F illustrate a
process of scanning the regions 51 to 54 of the light source unit 50
corresponding to the scanned image. The light source unit 50 is divided
into first to fourth regions 51 to 54 and includes the plurality of point
light sources 50a.

[0046]As shown in FIG. 3A, while the image is scanned to a first image
region 11 corresponding to a quarter of the liquid crystal panel 10, any
of the regions 51 to 54 of the light source unit 50 is not driven as
shown in FIG. 3B. As shown in FIG. 3C, if the image is scanned to a
second image region 12 corresponding to half of the liquid crystal panel
10, the first region 51 is driven as shown in FIG. 3D. The liquid crystal
layer of the liquid crystal panel 10 maintains an image signal of the
image corresponding to the first image region 11 until a single frame is
completed. A user views the image when the first region 51 is driven. If
the image is sequentially scanned to a third image region 13 as shown in
FIG. 3E, the second region 52 is driven corresponding to the second image
region 12 as shown in FIG. 3F.

[0047]Referring to FIG. 4, the left and right images are alternately
displayed on the liquid crystal panel 10 according to the scanning cycle
T. Each of the regions 51 to 54 is sequentially driven for T/4. If the
image is scanned initially, the regions 51 to 54 are not driven as shown
in FIG. 3B. Thus, light is not supplied to the liquid crystal panel 10
for the first T/4. If the second to fourth image regions are sequentially
scanned, the first to third regions 51 to 53 are sequentially scanned
according to the scanned image regions.

[0048]If the scanning cycle T of the left image is finished and if the
first image region of the right image is scanned, the fourth region 54 is
driven.

[0049]That is, the light source driver 60 supplies driving power to the
light source unit 50 to scan light posterior to the image displayed on
the liquid crystal panel 10. Thus, the image overlapping which occurs in
the conventional liquid crystal display apparatus due to the remaining
left image while the right image is scanned, does not occur. As the light
from the light source unit 50 is scanned posterior to the image and the
image is displayed partially, the left and right images are not viewed
simultaneously.

[0050]The light adjusting member 70 is disposed between the liquid crystal
panel 10 and the light source unit 50, and includes a protection film 71,
a prism film 72 and a diffusion adjusting plate 73.

[0051]The protection film 71 is provided on a top of the light adjusting
member 70 and protects the prism film 72 against scratches.

[0052]The prism film 72 has triangular prisms arranged on an upper surface
thereof in a consistent pattern. The prism film 72 collects light passing
through the diffusion adjusting plate 73 in a direction perpendicular to
a surface of the liquid crystal panel 10. The prism film 72 typically
includes two sheets of films. Micro prisms which are formed on the
respective prism films 72 have a predetermined angle. Light passes
through the prism films 72, and progresses almost vertically to provide
uniform brightness distribution. A reflective polarizer film may be used
together with the prism films 72. Otherwise, only the reflective
polarizer film may be used.

[0053]The diffusion adjusting plate 73 includes a base layer and a coating
layer which has beads formed on the base layer. The diffusion adjusting
plate 73 adjusts diffusion of light supplied by the light sources 50a.
According to the present embodiment, the diffusion adjusting plate 73
reduces diffusion of the light. That is, the diffusion adjusting plate 73
prevents excessive diffusion of light so that light emitted by the
particular regions 51 to 54 do not affect other regions 51 to 54. The
diffusion adjusting plate 73 may be designed to diffuse light emitted by
one of the regions 51 to 54 and make the brightness uniform.

[0054]FIG. 5 illustrates a timing to describe a light emitting pattern of
a light source unit 50 according to a second exemplary embodiment of the
present invention. FIG. 6 is a control flowchart to describe a control
method of the liquid crystal display according to the present embodiment.

[0055]As shown therein, the light source unit 50 according to the present
embodiment does not emit light to a liquid crystal panel 10 between
frames of displaying the left image and right image. The left image and
right image are scanned to the liquid crystal panel 10 for 4T/5, which is
shorter than the scanning cycle T for forming a single frame. The liquid
crystal panel 10 maintains the formed image for the remaining T/5. The
regions 51 to 54 are sequentially driven for each T/5 synchronizing with
the scanned image, and are not driven for the last T/5.

[0056]That is, the liquid crystal display according to the present
embodiment has a blank period B in which an image is not displayed on the
liquid crystal panel 10 after a single frame is formed and before a
consecutive frame is formed. The blank period B is realized by the light
source unit 50. The light source driver 60 does not supply driving power
to the light source unit 50 during the blank period B. The blank period B
prevents the latent image in the liquid crystal panel 10. Also, the
problems due to the light diffused to the unnecessary regions may be
reduced.

[0057]According to the present embodiment, light is supplied to the
regions 51 to 54 corresponding to the scanned image. Alternatively, the
light may be supplied posterior to the scanned image as described above.
The blank period B may be formed at an initial stage of forming a single
frame instead of being formed after the image is completed. The timing of
forming the blank period B, the time of maintaining the blank period B
and the scanning method of the regions 51 to 54 may be determined by the
one ordinarily skilled in the art.

[0058]The control method of the liquid crystal display according to the
present embodiment will be described with reference to FIG. 6. First,
left image signal and right image signal are alternately displayed on the
liquid crystal panel 10 according to the scanning cycle T in the scanning
direction, and the left glass and right glass of the liquid crystal
shutter glasses 40 are open and closed (S10).

[0059]The left glass and right glass of the liquid crystal shutter glasses
40 are open and closed corresponding to the scanning cycle T. If the left
image signal is displayed, the left glass of the liquid crystal shutter
glasses 40 is open. If the right image signal is displayed, the right
glass of the liquid crystal shutter glasses 40 is open. The liquid
crystal panel 10 may display 120 and above frames per second.

[0060]Light is sequentially supplied to the image regions 11 to 14 of the
liquid crystal panel 10 in the scanning direction posterior to the image
signal (S20). The light source unit 50 is divided into the regions 51 to
54 corresponding to the image regions 11 to 14. The driving power
supplied to the regions 51 to 54 is controlled so that light supplied to
the liquid crystal panel 10 is scanned.

[0061]The light source driver 60 shuts down light emitted to the liquid
crystal panel 10 during the blank period B between the frames of the left
image signal and the right image signal (S30). The latent image in the
liquid crystal panel 10 is prevented by the blank period B during which
light is not supplied to the liquid crystal panel 10. As stated above,
the blank period B may not be necessary in some of the embodiments of the
present invention.

[0062]FIG. 7 illustrates a timing of a liquid crystal display according to
a third exemplary embodiment of the present invention. As shown therein,
a light source driver 60 according to the present embodiment forms a
blank period B while a frame is formed. A single frame image signal is
displayed according to a scanning cycle T. And light is scanned to a
liquid crystal panel 10 posterior to the image signal, and is shut down
for predetermined time within the scanning cycle T. That is, the timing
of forming the blank period B is not limited to particular time.
Alternatively, at least two blank periods B may exist while a single
frame is formed. The number of the regions 51 to 54 is not limited to
four. Alternatively, the regions 51 to 54 may vary depending on the size
of the liquid crystal panel 10, the scanning rate of the light source
driver 60, contrast ratio and brightness.

[0063]The left and right images are an example of images consecutively
neighboring each other and thus, the present invention may be applicable
to various different types of 3D formats or 2D formats having neighboring
frames or fields.

[0064]As described above, the present invention provides a liquid crystal
display apparatus which improves an image overlapping and a latent image,
and a control method thereof.

[0065]Although a few exemplary embodiments of the present invention have
been shown and described, it will be appreciated by those skilled in the
art that changes may be made in these exemplary embodiments without
departing from the principles and spirit of the invention, the scope of
which is defined in the appended claims and their equivalents.