KR20120048285A - Method for displaying stereo-scopic image and display apparatus for performing the same - Google Patents

Abstract

PURPOSE: A stereoscopic image display method and a device thereof are provided to divide a light source unit into a plurality of light emitting blocks and recognize a display block of a display panel by controlling the light emitting time of the light emitting blocks when a right eye or a left eye image is completely displayed. CONSTITUTION: A display device outputs a left eye image to k display blocks for N frame. The display device provides the light to each of the display blocks at a point passing the left setting time of 1 to k. The display device outputs a right eye image to the k display blocks for M frame. The display device offers the light to each of the display block at a point passing the right setting time of 1 to k. The display device controls the opening/closing time of a right eye shutter and a left eye shutter of shutter glasses.

Description

TECHNICAL FOR DISPLAYING STEREO-SCOPIC IMAGE AND DISPLAY APPARATUS FOR PERFORMING THE SAME

The present invention relates to a stereoscopic image display method and a display device for performing the same, and more particularly, to a stereoscopic image display method of the shutter glasses method and a display device for performing the same.

In general, a liquid crystal display displays a two-dimensional planar image. Recently, as demand for 3D stereoscopic images increases in fields such as games and movies, 3D stereoscopic images are displayed using the liquid crystal display.

In general, stereoscopic images display stereoscopic images using the principle of binocular parallax through two eyes of a person. For example, since two eyes of a person are separated by a certain distance, images of each eye viewed from different angles are input to the brain. The stereoscopic image display device uses human binocular disparity.

As a method of using the binocular parallax, there are a spectacle method and an autostereoscopic method. The eyeglass method includes a passive polarized glasses method using a polarization filter having different polarization axes in both eyes, and a left eye shutter and a right eye image which are divided in time and periodically displayed, and a left eye shutter synchronized with the period. Active shutter glasses using glasses for opening and closing the right eye shutter, and the like. In the shutter glasses method, the left eye or right eye image is displayed on the display panel and the left eye shutter or the right eye shutter is opened during the vertical blanking period to recognize the left eye image or the right eye image displayed on the display panel.

Meanwhile, when a 3D stereoscopic image is implemented in a general 60 Hz liquid crystal display, a left eye image and a right eye image are provided at 30 Hz, respectively. Problems that are visible to the observer's eye arise. In addition, when the 3D stereoscopic image is implemented in a 120Hz liquid crystal display device which is driven at a higher frequency than the 60Hz, the left and right eye images are provided at 60Hz in both eyes, so that they are visually compared to the 60Hz level, but are still smoothly viewed compared to the left eye image and the The right eye image is mixed to generate crosstalk.

In order to increase the viewing period in the 120Hz liquid crystal display, a method of driving the vertical blanking period up to about 30% of one frame has been developed. However, since the liquid crystal display is driven by a progressive scan method, the time for which line data is applied to a plurality of horizontal lines of the liquid crystal display is different and the response speed of the liquid crystal is different. When the left eye image and the right eye image are alternately displayed on a display panel to realize the 3D stereoscopic image, the left eye image and the right eye image are mixed to generate the crosstalk. In particular, since the response speed is slower from the upper part of the display panel to the lower part, the cross talk is more severely generated at the lower side than at the upper side of the display panel. There is a problem that the quality of the stereoscopic image is degraded by such cross talk.

Accordingly, the technical problem of the present invention has been devised in this respect, and an object of the present invention is to provide a stereoscopic image display method for improving crosstalk of a stereoscopic image.

Another object of the present invention is to provide a display device for performing the stereoscopic image display method.

In the three-dimensional image display method according to an embodiment for realizing the object of the present invention, during the N (N is a natural number) frame, the display panel divided into k (k is a natural number of two or more) display blocks Output the left eye image. Subsequently, light is provided to each of the display blocks when the time set corresponding to each of the display blocks has elapsed from the time when the output of the left eye image is completed for each of the display blocks. Subsequently, during the M (M is a natural number larger than N) frame, the right eye image is output to the display panel. Subsequently, light is provided to each of the display blocks when the time set corresponding to each of the display blocks has elapsed from the time when the output of the right eye image is completed for each of the display blocks. Subsequently, the opening / closing time of the left eye shutter and the right eye shutter of the shutter glasses is adjusted in correspondence with the left eye image or the right eye image displayed on each display block.

In the exemplary embodiment of the present invention, the left eye shutter of the shutter glasses is opened and the right eye shutter of the shutter glasses is closed while the light is respectively provided to the k display blocks displayed in the left eye image. The right eye shutter is opened and the left eye shutter is closed while the light is respectively provided to the k display blocks displayed in the right eye image.

In an embodiment of the present invention, the left and right eye images may be displayed at a frame frequency of 60 Hz or multiples thereof.

In an embodiment of the present invention, the times set corresponding to each of the display blocks may be set based on the response speed of the liquid crystal included in the display panel.

In an embodiment of the present invention, the time set corresponding to each of the display blocks may be equal to or greater than the time required to reach a luminance corresponding to 60% of the luminance when the liquid crystal is saturated.

In an embodiment of the present invention, the times set corresponding to the respective display blocks may be the same.

In an embodiment of the present invention, the time for which the light is provided to each of the display blocks may be equal to or less than a time obtained by subtracting the time set corresponding to each of the display blocks in the periods of the Nth and Mth frames.

In an embodiment of the present invention, the left eye image and the right eye image are output in synchronization with a vertical synchronization signal which may include an active period and a blanking period, and as the blanking period increases, the time for which the light is provided may increase. have.

The display device according to the exemplary embodiment of the present invention includes a light source unit, a display panel, shutter glasses, and a light source driver. The light source unit includes k light emitting blocks in which k is a natural number of two or more, and provides light. The display panel is divided into k display blocks corresponding to the k light emitting blocks, and periodically displays a left eye image and a right eye image. The shutter glasses include a left eye shutter and a right eye shutter, and selectively open and close the left eye shutter and the right eye shutter according to an image displayed on the display panel. The light source driver corresponds to each display block from a time point in which the set time corresponding to each display block has elapsed from the time point at which the left eye image is output to each of the display blocks, and a time point in which the right eye image is output to each of the display blocks. The light source unit is controlled to provide the light to each of the display blocks when a predetermined time elapses.

In an embodiment of the present disclosure, the shutter glasses open the left eye shutter, close the right eye shutter, and the k eye display the right eye image while the light is provided to the k display blocks on which the left eye image is displayed. The right eye shutter is opened and the left eye shutter is closed while the light is provided to the display blocks.

In an embodiment of the present invention, the display panel may display the left and right eye images at a frame frequency of 60 Hz or multiples thereof.

In an embodiment of the present invention, the times set corresponding to each of the display blocks may be set based on the response speed of the liquid crystal included in the display panel.

In an embodiment of the present invention, the time set corresponding to each of the display blocks may be equal to or greater than the time required to reach a luminance corresponding to 60% of the luminance when the liquid crystal is saturated.

In example embodiments, the display device may include a timing controller and a timing controller configured to control driving timings of the k light emitting blocks and the shutter glasses based on the left eye image and the right eye image displayed on the display panel. The apparatus may further include a panel driver configured to drive the display panel under control.

In an embodiment, the light source driver may be equal to a time obtained by subtracting a time for providing light to each display block from a period set for each display block in a period of each of the Nth and Mth frames. It can be set small.

In an embodiment of the present invention, each of the k light emitting blocks includes at least one light source, and the light source may be a linear light source or a point light source.

In at least one example embodiment of the inventive concepts, the display device may further include a light guide plate disposed on one side of the light source unit to guide the light generated by the light source unit to the display panel.

In example embodiments, the light source unit may be disposed under the display panel.

According to such a stereoscopic image display method and a display device performing the same, a light source unit which provides light to a display panel so that each of the left and right eye images is time-divided into a plurality of images and viewed is divided into a plurality of light emitting blocks. By controlling the light emission timing of the blocks, the display block of the display panel is visually recognized in a state where the left eye image or the right eye image is completely displayed, thereby preventing cross talk from occurring due to mixing of the left eye and right eye images.

1 is a block diagram of a display device according to an embodiment of the present invention.
FIG. 2 is an exemplary timing diagram illustrating a stereoscopic image display method using the display device of FIG. 1.
3 is an exemplary timing diagram for describing a stereoscopic image display method using the display device of FIG. 1.
4 is an exemplary timing diagram illustrating a stereoscopic image display method using the display device of FIG. 1.
5 is a plan view of a light supply unit according to an embodiment of the present invention.
6 is a plan view of a light supply unit according to an embodiment of the present invention.
7 is a block diagram of a display device according to an exemplary embodiment.
FIG. 8 is an exemplary timing diagram for describing a stereoscopic image display method using the display device of FIG. 7.
9 is an exemplary timing diagram for describing a stereoscopic image display method using the display device of FIG. 7.
FIG. 10 is an exemplary timing diagram for describing a stereoscopic image display method using the display device of FIG. 7.
11 is an exemplary timing diagram illustrating a stereoscopic image display method according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the display device of the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a display device according to an embodiment of the present invention.

Referring to FIG. 1, the display device includes a display panel 100, a panel driver 200, a timing controller 300, a light supply unit 400, a light source driver 500, and shutter glasses 600.

The display panel 100 includes a plurality of pixels P for displaying an image. For example, each pixel includes a switching element TR electrically connected to a gate line GL and a data line DL intersecting each other, a liquid crystal capacitor CLC and a storage capacitor CST connected to the switching element TR. ). The display panel 100 may include two substrates facing each other and a liquid crystal interposed between the two substrates.

The panel driver 200 may include a gate driver 210 and a data driver 230. The gate driver 210 generates a gate signal for driving the gate line GL and provides the gate signal to the gate line GL. The data driver 230 converts an image signal received from the timing controller 300 into a data voltage. The data driver 230 provides the data voltage to the data line DL.

The timing controller 300 controls the overall driving timing of the display device based on a synchronization signal received from the outside. The timing controller 300 provides the data driver 230 with a 3D image signal received from the outside or generated by the timing controller 300. The 3D video signal includes a left eye image and a right eye image. The timing controller 300 controls the driving of the light source driver 500 based on the image displayed on the display panel 100. In addition, the timing controller 300 may control the driving of the shutter glasses 600 based on the image displayed on the display panel 100.

The light supply unit 400 may include a light guide plate 410 and a light source unit 420.

The light guide plate 410 may be disposed on one side surface of the light source unit 420, and provides light generated from the light source unit 420 to the display panel 100.

The light source unit 420 provides the light. The light source unit 420 includes a first light emitting block 420a and a second light emitting block 420b. Each of the first and second light emitting blocks 420a and 420b includes one or more light sources 422. The light source 422 may be a fluorescent lamp or a light emitting diode. The display panel 100 may be divided into first and second display blocks DB1 and DB2 corresponding to the first and second light emitting blocks 420a and 420b. The first light emitting block 420a provides light to the first display block DB1, and the second light emitting block 420b provides light to the second display block DB2.

Although not shown in the drawing, the light source unit 420 may further include a third light emitting block facing the first light emitting block 420a and a fourth light emitting block facing the second light emitting block 420b. have. In this case, the first and third light emitting blocks facing each other may be driven in synchronization with each other. In addition, the second and fourth light emitting blocks may be driven in synchronization with each other.

In addition, the light supply unit 400 may further include a light blocking member (not shown). The light blocking member may be disposed between the first and second light emitting blocks 420a and 420b, and may be disposed from the first light emitting block 420a to the second light emitting block 420b or the second light emitting block. Light leakage from the 420b to the first light emitting block 420a may be reduced or blocked.

The light source driver 500 controls the driving of the first and second light emitting blocks 420a and 420b. For example, the light source driver 500 controls the second light emitting block 420b to turn off when the first light emitting block 420a emits light, and when the second light emitting block 420b emits light, the first light emitting block 420b emits light. The light emitting block 420a may be processed to be turned off. The light source driver 500 controls the first light emitting block 420a to emit light when a first left set time elapses from the time when the output of the first left eye image is completed on the first display block DB1. The light source driver 500 controls the second light emitting block 420b to emit light when the second left set time elapses from the completion of the output of the second left eye image to the second display block DB2. The first left set time and the second left set time may be substantially the same. The first and second left set times may be set based on a response speed of the liquid crystal. For example, the first and second left settling times may be substantially equal to or greater than a time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is saturated. Meanwhile, the light source driver 500 controls the first light emitting block 420a to emit light when a first right set time has elapsed from when the output of the first right eye image is completed to the first display block DB1. do. The light source driver 500 controls the second light emitting block 420b to emit light when the second right setting time has elapsed from when the output of the second right eye image is completed to the second display block DB2. . The first right set time and the second right set time may be substantially the same. The first left set time and the first right set time may be substantially the same, and the second left set time and the second right set time may be substantially the same. The first and second left set time and the first and second right set time may be substantially the same.

The shutter glasses 600 includes a left eye shutter 610 and a right eye shutter 620. The shutter glasses 600 selectively opens and closes the left eye shutter 610 and the right eye shutter 620 in response to a shutter control signal received from the timing controller 300 or the like. For example, the shutter glasses 600 may operate the left eye shutter 610 while light is provided to the first and second display blocks DB1 and DB2 in response to the first and second left eye images. It opens and closes the right eye shutter 620. Meanwhile, the shutter glasses 600 opens the right eye shutter 620 while light is provided to the first and second display blocks DB1 and DB2 in response to the first and second right eye images. The left eye shutter 610 is closed.

2, 3, and 4 are exemplary timing diagrams for describing a stereoscopic image display method using the display device of FIG. 1.

1 to 4, a left eye image LI is output during an Nth (N is a natural number) frame F (N). The left eye image LI is output based on the vertical synchronization signal VSYNC. The N-th frame may include an active period ACTIVE and a blanking period VBI. The left eye image LI may be output to the active period ACTIVE of the Nth frame and may be maintained during the blanking period VBI. The blanking period VBI may be set to be about 10% or less of one frame period as in the general case. In addition, the blanking period VBI may be set to be 10% or more of one frame period, and may be set to be about 30% or more.

The left eye image LI may be a first left eye image LI1 displayed on the first display block DB1 of the display panel 100 and a second left eye image LI2 displayed on the second display block DB2. Divided by). For example, when the display panel 100 has a resolution of 1920 × 1080, the first and second display blocks DB1 and DB2 may each have a resolution of 1920 × 540. In this case, the left eye image LI may have 1920 X 1080 image data, and the first and second left eye images LI1 and LI2 may each have 1920 X 540 image data. The display panel 100 may display a frame image having a resolution of 1920 × 1080 at a frame frequency of 60 Hz or multiples thereof.

The light source driver 500 drives the first light emitting block 420a based on a first light emission control signal BLC1, and the second light emitting block 420b based on the second light emission control signal BLC2. To drive. The first emission control signal BLC1 and the second emission control signal BLC2 may be transmitted by one wire, or may be transmitted by separate wires. For example, the first light emitting block 420a may emit light in response to the first light emission control signal BLC1 at a high level, and may be turned off in response to the first light emission control signal BLC1 at a low level. have. For example, the second light emitting block 420b may emit light in response to the second light emission control signal BLC2 at a high level, and may be turned off in response to the second light emission control signal BLC2 at a low level. have. The first light emitting block 420a emits light when a first left set time TL1 elapses from a time point when the output of the first left eye image LI1 is completed to the first display block DB1. The second light emitting block 420b emits light when the second left set time TL2 elapses from the time when the output of the second left eye image LI2 is completed to the second display block DB2. The first left set time TL1 or the second left set time TL2 may be set based on a response speed of the liquid crystal included in the display panel 100. For example, the first left set time TL1 or the second left set time TL2 is a time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is saturated. May be substantially the same or larger. The first left set time TL1 or the second left set time TL2 may be set based on a time obtained by dividing a period of one frame by the first and second light emitting blocks 420a and 420b. For example, the first left set time TL1 may be set larger than a time obtained by dividing the period of the one frame by the first and second light emitting blocks 420a and 420b. The shutter glasses 600 controls the opening and closing of the left eye shutter 610 based on a first shutter control signal LSS, and opening and closing the right eye shutter 620 based on the second shutter control signal RSS. To control. The shutter glasses 600 may open the left eye shutter 610 in response to the first shutter control signal LSS at a high level, and the left eye shutter in response to the first shutter control signal LSS at a low level. 610 may be closed. In addition, the shutter glasses 600 may open the right eye shutter 620 in response to the second shutter control signal RSS at a high level, and in response to the second shutter control signal RSS at a low level. The right eye shutter 620 may be closed. The shutter glasses 600 may open the left eye shutter 610 and close the right eye shutter 620 while the first and second light emitting blocks 420a and 420b emit light.

 The observer recognizes the first left eye image displayed on the first display block DB1 through the left eye shutter 610 while the first light emitting block 420a emits light. The second left eye image displayed on the second display block DB2 may be viewed through the left eye shutter 610 while emitting light.

In addition, the right eye image RI is output to the display panel 100 during the M (M is a natural number larger than N) frame F (M). In FIG. 2, M is illustrated as an example of N + 1. In FIGS. 3 and 4, M is illustrated to be greater than N + 1. As shown in FIGS. 3 and 4, a left eye image LI is output to the display panel 100 during the Nth frame F (N), and the N + 1 (F (N + 1)) is immediately continuous. The left eye image LI may be outputted from the frame to the M-1 frame F (M-1), which is the frame immediately before the M-th frame output to the display panel 100, from the frame. It may be. The left eye image LI output from the N + 1 (F (N + 1)) frame to the M-1 th frame F (M-1) is the same as the left eye image LI of the Nth frame, The image may be generated based on the left eye image LI of the Nth frame. The left eye image LI output from the N + 1 (F (N + 1)) frame to the M-1 th frame F (M-1) may be an image substantially corresponding to black gradation. Similarly, the right eye image RI is output to the display panel 100 during the M-th frame F (M), and the left eye immediately starts from the immediately subsequent M + 1 (F (M + 1)) frame. The right eye image RI is displayed on each frame until the second M-N-1 frame F (2M-N-1), which is a frame immediately before the second M-N frame, to which the image LI is output to the display panel 100. It may be output. The right eye image RI, which is output from the M + 1 (F (M + 1)) frame to the second M-N-1 frame F (2M-N-1), is the right eye image RI of the Mth frame. The image may be identical to or generated based on a right eye image (RI) of the M-th frame. The right eye image RI output from the M + 1 (F (M + 1)) frame to the second M-N-1 frame (F (2M-N-1)) is substantially an image corresponding to black gradation. It may be.

2 to 4, the right eye image RI may be output to the active period ACTIVE of the M-th frame and maintained for the blanking period VBI. The right eye image RI may be a first right eye image RI1 displayed on the first display block DB1 of the display panel 100 and a second right eye image RI2 displayed on the second display block DB2. Can be divided into

The first light emitting block 420a may emit light in response to the first emission control signal BLC1 at a high level, and may be turned off in response to the first emission control signal BLC1 at a low level. The first light emitting block 420a emits light when a first right set time TR1 elapses from the time when the output of the first right eye image RI1 is completed to the first display block DB1. The second light emitting block 420b may emit light in response to the second emission control signal BLC2 at a high level, and may be turned off in response to the second emission control signal BLC2 at a low level. The second light emitting block 420b emits light when the second right set time TR2 elapses from the time when the output of the second right eye image RI2 is completed to the second display block DB2. The first right set time TR1 or the second right set time TR2 may be set based on a response speed of the liquid crystal. For example, the first right set time TR1 or the second right set time TR2 is substantially the same as the time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is segmented. Or larger. The first left set time TL1 and the first right set time TR1 may be substantially the same, and the second left set time TL2 and the second right set time TR2 are substantially the same. can do. The first and second left set times TL1 and TL2 and the first and second right set times TR1 and TR2 may be substantially the same. The first right set time TR1 or the second right set time TR2 may be set larger than a time obtained by dividing the period of one frame by the first and second light emitting blocks 420a and 420b.

The shutter eyeglasses 600 are provided with the right eye shutter 620 while light generated from the first and second light emitting blocks 420a and 420b is provided to the display panel 100 on which the right eye image RI is displayed. To open and close the left eye shutter 610. The time at which the first light emitting block 420a emits light may be substantially the same as or smaller than a time obtained by subtracting the first left set time TL1 or the first right set time TR1 from one frame period. The time at which the second light emitting block 420b emits light may be substantially the same as or smaller than the time obtained by subtracting the second left set time TL2 or the second right set time TR2 from one frame period.

An observer recognizes the first right eye image RI1 displayed on the first display block DB1 through the right eye shutter 620 while the first light emitting block 420a emits light, and the second light emitting block The second right eye image displayed on the second display block DB2 may be visually recognized through the right eye shutter 620 while 420b is emitted.

According to the present exemplary embodiment, the light source unit 420 is divided into the first and second light emitting blocks 420a and 420b such that each of the left and right eye images LI and RI is time-divided into two images. And controlling the light emission timing of the first and second light emitting blocks 420a and 420b so that the left eye image or the right eye image is completely visible on the display block of the display panel 100 so as to be visually recognized. And the right eye image may be mixed to prevent crosstalk from occurring.

5 is a plan view of a light supply unit according to an embodiment of the present invention.

Since the display device according to the present exemplary embodiment is substantially the same as the display device according to the exemplary embodiment illustrated in FIG. 1 except for the light supply unit 401, the rest of the configuration except for the light supply unit 401 is illustrated in FIG. See 1. In addition, since the stereoscopic image display method according to the present embodiment is substantially the same as the stereoscopic image display method described with reference to FIGS. 2 to 4, redundant description thereof will be omitted.

1 and 5, the light supply unit 401 according to the present embodiment includes a first light emitting block 432 and a second light emitting block 434. Each of the first and second light emitting blocks 432 and 434 includes a plurality of light sources 431. The light source 431 may be a light emitting diode. The first and second light emitting blocks 432 and 434 are disposed under the display panel 100. Although not shown in the drawing, the light supply unit 401 is disposed between the first and second light emitting blocks 432 and 434, and the second light emitting block 432 may be disposed in the first light emitting block 432. It may include a light blocking member for reducing or blocking the outflow of light to the 434 or from the second light emitting block 434 to the first light emitting block 432.

The first and second light emitting blocks 432 and 434 are disposed under the display panel 100, and the light generated from the first and second light emitting blocks 432 and 434 is transferred to the display panel 100. Is investigated.

6 is a plan view of a light supply unit according to an embodiment of the present invention.

Since the display device according to the present exemplary embodiment is substantially the same as the display device according to the exemplary embodiment illustrated in FIG. 1 except for the light supply unit 402, the rest of the configuration except for the light supply unit 402 is illustrated in FIG. See 1. In addition, since the stereoscopic image display method according to the present embodiment is substantially the same as the stereoscopic image display method described with reference to FIGS. 2 to 4, redundant description thereof will be omitted.

1 and 6, the light supply unit 402 includes a first light emitting block 442 and a second light emitting block 444. Each of the first and second light emitting blocks 442 and 444 may include at least one light source 441. The light source 441 may be a lamp. The first and second light emitting blocks 442 and 444 are disposed under the display panel 100. Although not shown in the drawing, the light supply unit 402 is disposed between the first and second light emitting blocks 442 and 444, and the second light emitting block 442 may be disposed in the first light emitting block 442. And a light blocking member for reducing or blocking outflow of light from the second light emitting block 444 to the first light emitting block 442.

The first and second light emitting blocks 442 and 444 are disposed under the display panel 100, and light generated from the first and second light emitting blocks 432 and 434 is transferred to the display panel 100. Is investigated.

7 is a block diagram of a display device according to an exemplary embodiment.

Referring to FIG. 7, the display device includes a display panel 100, a panel driver 200, a timing controller 300, a light supply unit 403, a light source driver 500, and shutter glasses 600.

The display panel 100 includes a plurality of pixels P for displaying an image. Each pixel P includes a switching element TR electrically connected to a gate line GL and a data line DL that cross each other, a liquid crystal capacitor CLC and a storage capacitor CST connected to the switching element TR. It includes. The display panel 100 may include two substrates facing each other and a liquid crystal interposed between the two substrates.

The panel driver 200 may include a gate driver 210 and a data driver 230. The gate driver 210 generates a gate signal for driving the gate line GL and provides the gate signal to the gate line GL. The data driver 230 converts an image signal received from the timing controller 300 into a data voltage. The data driver 230 provides the data voltage to the data line DL.

The timing controller 300 controls the overall driving timing of the display device based on a control signal received from the outside. The timing controller 300 provides the data driver 230 with a 3D image signal received from the outside or generated by the timing controller 300. The 3D video signal includes a left eye image and a right eye image. The timing controller 300 controls the driving of the light source driver 500 based on the image displayed on the display panel 100. In addition, the timing controller 300 may control the driving of the shutter glasses 600 based on the image displayed on the display panel 100.

The light supply unit 403 may include a light guide plate 410 and a light source unit 450.

The light guide plate 410 may be disposed on one side surface of the light source unit 450, and provides light generated from the light source unit 450 to the display panel 100.

The light source unit 450 provides the light. The light source unit 450 may include k light emitting blocks (k being 3 or more natural numbers). For example, as illustrated in FIG. 6, the light source unit 450 may include first, second, third and fourth light emitting blocks 450a, 450b, 450c, and 450d. Each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may include at least one light source 452. The light source 452 may be a light emitting diode. In addition, the light source 452 may be a lamp.

The display panel 100 may include first, second, third and fourth display blocks DB1, DB2, DB3, and DB4 corresponding to the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. Can be divided into The first light emitting block 450a provides light to the first display block DB1, and the second light emitting block 450b provides light to the second display block DB2. The third light emitting block 450c provides light to the third display block DB3, and the fourth light emitting block 450d provides light to the fourth display block DB4. In addition, the light supply unit 403 may further include a light blocking member (not shown) disposed between adjacent light emitting blocks to reduce or block outflow of light out of the block. The light blocking member is disposed between the first and second light emitting blocks 450a and 450b, the second and third light emitting blocks 450b and 450c, and the third and fourth light emitting blocks 450c and 450d. ) May be disposed between. In addition, although not shown in the drawing, the light source unit 450 further includes fifth, sixth, seventh and eighth light emitting blocks facing the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. It may include. In this case, the light emitting blocks facing each other may be driven in synchronization with each other.

Meanwhile, in the present exemplary embodiment, the light source unit 450 is disposed at a side surface of the light guide plate 410 and configured to have an edge type for irradiating light to the display panel 100 through the light guide plate 410. Although described as an example, the present invention is not limited thereto. That is, in the light source unit 450, the first to fourth light emitting blocks 450a, 450b, 450c, and 450d are disposed under the display panel 100 to directly irradiate light to the display panel 100. Of course, it can be formed in a direct type (direct type).

The light source driver 500 generates light emission control signals for driving the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. The light source driver 500 controls each light emitting block to emit light when a first to fourth left setting time or a first to fourth right setting time elapses from when a left eye or right eye image is output to each display block. do. For example, the light source driver 500 emits the first light emitting block 450a when the first left set time elapses from when the output of the left eye image is completed on the first display block DB1. The second light emitting block 450b emits light when the second left set time elapses from the completion of output of the corresponding left eye image to the second display block DB2. In this manner, the light source driving part 500 may be configured such that the first light emitting block 450a is elapsed when the first right set time elapses from the completion of the output of the right eye image to the first display block DB1. Control to emit light. The first to fourth left setting time or the first to fourth right setting time may be set based on the response speed of the liquid crystal included in the display panel 100. For example, the first to fourth left set time or the first to fourth right set time are substantially the same as the time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is segmented. It can be the same or larger. Meanwhile, each of the first to fourth left setting times or the first to fourth right setting times is divided by the number of the first to fourth light emitting blocks 450a, 450b, 450c and 450d. It can be set based on time. For example, each of the first to fourth left set times or the first to fourth right set times may include a period of the one frame of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. It may be set larger than the time divided by the number.

The shutter glasses 600 includes a left eye shutter 610 and a right eye shutter 620. The shutter glasses 600 selectively opens and closes the left eye shutter 610 and the right eye shutter 620 in response to a shutter control signal received from the timing controller 300 or the like. For example, the shutter glasses 600 opens the left eye shutter 610 while light is provided to the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the left eye image is displayed. The right eye shutter 620 is closed. Meanwhile, the shutter glasses 600 opens the right eye shutter 620 while light is provided to the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the right eye image is displayed, and the left eye shutter Close 610.

8, 9, and 10 are exemplary timing diagrams for describing a stereoscopic image display method by the display device of FIG. 7.

7 to 9, a left eye image LI is output to the display panel 100 during an Nth (N is a natural number) frame F (N). The left eye image LI is output based on the vertical synchronization signal VSYNC. The N-th frame may include an active period ACTIVE and a blanking period VBI. The left eye image LI may be output to the active period ACTIVE of the Nth frame and may be maintained during the blanking period VBI. The blanking period VBI may be set to be about 10% or less of one frame period. For example, the blanking period VBI may be set to about 5 to 6% of one frame period.

The left eye image LI may include first, second, third and fourth left eye images corresponding to the first to fourth display blocks DB1, DB2, DB3, and DB4 of the display panel 100. LI1, LI2, LI3, LI4). For example, when the display panel 100 has a resolution of 1920 X 1080, the first to fourth display blocks DB1, DB2, DB3, and DB4 may each have a resolution of 1920 X 270. In this case, the left eye image LI may have 1920 X 1080 image data, and the first to fourth left eye images LI1, LI2, LI3, and LI4 may each have 1920 X 270 image data. have. The display panel 100 may display a frame image having a resolution of 1920 × 1080 at a frame frequency of 60 Hz or multiples thereof.

The light source driver 500 may drive first, second, third, and fourth light emission control signals BLC1, BLC2, and BLC3 to drive the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. , BLC4). Each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may emit light in response to a high level light emission control signal, and may be turned off in response to a low level light emission control signal.

The first light emitting block 450a emits light when a first left set time TL1 elapses from a time point when the output of the first left eye image LI1 is completed to the first display block DB1. The second light emitting block 450b emits light when the second left set time TL2 elapses from the time when the output of the second left eye image LI2 is completed to the second display block DB2. The third light emitting block 450c emits light when the third left set time TL3 has elapsed from when the output of the third left eye image LI3 is completed to the third display block DB3. The fourth light emitting block 450d emits light when the fourth left set time TL4 has elapsed from when the output of the fourth left eye image LI4 is completed to the fourth display block DB4. The first to fourth left set times TL1 to TL4 may be substantially the same. In addition, the first to fourth left settling times TL1, TL2.TL3 and TL4 may be substantially the same as or longer than the time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is segmented. Can be large.

The shutter glasses 600 controls the opening and closing of the left eye shutter 610 based on a first shutter control signal LSS, and opening and closing the right eye shutter 620 based on the second shutter control signal RSS. To control. The shutter glasses 600 may open the left eye shutter 610 in response to the first shutter control signal LSS at a high level, and the left eye shutter in response to the first shutter control signal LSS at a low level. 610 may be closed. In addition, the shutter glasses 600 may open the right eye shutter 620 in response to the second shutter control signal RSS at a high level, and in response to the second shutter control signal RSS at a low level. The right eye shutter 620 may be closed. The shutter glasses 600 may include the first to fourth light emitting blocks 450a, 450b, 450c, and 450d on the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the left eye image is displayed. While the generated light is provided, the left eye shutter 610 may be opened and the right eye shutter 620 may be closed. In this case, the time at which each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d emits light is a first to fourth left set time corresponding to each of the light emitting blocks in one frame period. , TL2.TL3, TL4) may be substantially equal to or less than the time minus each.

The observer recognizes the first left eye image LI1 displayed on the first display block DB1 through the left eye shutter 610 while the first light emitting block 450a emits light, and the second light emitting block ( The second left eye image LI2 displayed on the second display block DB2 may be viewed through the left eye shutter 610 while the light 450b is emitted. The observer recognizes the third left eye image LI3 displayed on the third display block DB3 through the left eye shutter 610 while the third light emitting block 450c emits light, and the fourth light emitting block ( While the light emitting device 450d emits light, the fourth left eye image LI4 displayed on the fourth display block DB4 may be viewed through the left eye shutter 610.

In addition, the right eye image RI is output to the display panel 100 during the M (M is a natural number larger than N) frame F (M). In FIG. 8, M is illustrated as an example of N + 1. In FIGS. 9 and 10, M is illustrated to be greater than N + 1. As shown in FIGS. 9 and 10, the left eye image LI is output to the display panel 100 during the Nth frame F (N), and the N + 1 (F (N + 1)) is immediately continuous. The left eye image LI may be outputted from the frame to the M-1 frame F (M-1), which is the frame immediately before the M-th frame output to the display panel 100, from the frame. It may be. The left eye image LI output from the N + 1 (F (N + 1)) frame to the M-1 th frame F (M-1) is the same as the left eye image LI of the Nth frame, The image may be generated based on the left eye image LI of the Nth frame. The left eye image LI output from the N + 1 (F (N + 1)) frame to the M-1 th frame F (M-1) may be an image substantially corresponding to black gradation. Similarly, the right eye image RI is output to the display panel 100 during the M-th frame F (M), and the left eye immediately starts from the immediately subsequent M + 1 (F (M + 1)) frame. The right eye image RI is displayed on each frame until the second M-N-1 frame F (2M-N-1), which is a frame immediately before the second M-N frame, to which the image LI is output to the display panel 100. It may be output. The right eye image RI, which is output from the M + 1 (F (M + 1)) frame to the second M-N-1 frame F (2M-N-1), is the right eye image RI of the Mth frame. The image may be identical to or generated based on a right eye image (RI) of the M-th frame. The right eye image RI output from the M + 1 (F (M + 1)) frame to the second M-N-1 frame (F (2M-N-1)) is substantially an image corresponding to black gradation. It may be.

8 to 10, the right eye image RI may be output to the active period ACTIVE of the M-th frame and maintained for the blanking period VBI. The right eye image RI may include first, second, third and fourth right eye images corresponding to the first to fourth display blocks DB1, DB2, DB3, and DB4 of the display panel 100. RI1, RI2, RI3, RI4).

Each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may emit light in response to a high level light emission control signal, and may be turned off in response to a low level light emission control signal. The first light emitting block 450a emits light when a first right set time TR1 elapses from a time point when the output of the first right eye image RI1 is completed to the first display block DB1. The second light emitting block 450b emits light when the second right set time TR2 has elapsed from the time when the output of the second right eye image RI2 is completed to the second display block DB2. The third light emitting block 450c emits light when the third right set time TR3 elapses from the completion of the output of the third right eye image RI3 to the third display block DB3. The fourth light emitting block 450d emits light when the fourth right set time TR4 has elapsed from when the output of the fourth right eye image RI4 is completed to the fourth display block DB4. The first to fourth right set times TR1 to TR4 may be substantially the same. In addition, the first to fourth left settling times TL1, TL2.TL3 and TL4 may be substantially the same as or longer than the time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is segmented. Can be large. The first left set time TL1, the first right set time TR1, the first left set time TL1, the first right set time TR1, and the second left set time TL2. ), The second right set time TR2, the third left set time TL3, the third right set time TR3, the fourth left set time TL4, and the fourth right set time TR4. ) May be substantially identical to each other, and both of the first to fourth left setting times TL1 to TL4 and the first to fourth right setting times TR1 to TR4 may be substantially the same.

The shutter glasses 600 may display the first to fourth light emitting blocks 450a, 450b, 450c, and 450d on the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the right eye image is displayed. While the generated light is provided, the right eye shutter 620 is opened and the left eye shutter 610 is closed. In this case, the time at which each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d emits light is the first to fourth post-set time TR1 corresponding to each of the light emitting blocks in one frame period. May be substantially equal to or less than the time minus TR2, TR3, and TR4).

The observer recognizes the first right eye image RI1 displayed on the first display block DB1 through the right eye shutter 620 while the first light emitting block 450a emits light, and the second light emitting block ( The second right eye image RI2 displayed on the second display block DB2 may be viewed through the right eye shutter 620 while the light 450b is emitted. The observer recognizes the third right eye image RI3 displayed on the third display block DB3 through the right eye shutter 620 while the third light emitting block 450c emits light, and the fourth light emitting block ( While the light emitting device 450d is emitting light, the fourth right eye image LI4 displayed on the fourth display block DB4 may be viewed through the right eye shutter 620.

According to the present exemplary embodiment, the left eye image and the right eye image are time-divided into four images, respectively, so that the left eye image and the right eye image are mixed to effectively prevent cross talk from occurring. Therefore, the display quality of the 3D image can be improved.

7 to 10 are merely examples in which the number of display blocks and corresponding light emitting blocks is four, respectively, and the number of display blocks and light emitting blocks may be three or five or more.

11 is an exemplary timing diagram illustrating a stereoscopic image display method according to an embodiment of the present invention.

The display device according to the present exemplary embodiment is substantially the same as the display device according to the exemplary embodiment described with reference to FIGS. 7 to 10 except for the vertical synchronization signal VSYNC applied to the timing controller 300. Refer to Figure 6 for the configuration of. In addition, the stereoscopic image display method according to the present embodiment includes the vertical synchronization signal VSYNC, the first, second, third, and fourth emission control signals BLC1, BLC2, BLC3, and BLC4. Except for the second shutter control signals LSS and RSS, since the display apparatus is substantially the same as the display device stereoscopic image display method described with reference to FIGS. 8 to 10, the description thereof will not be repeated.

7 and 11, a left eye image LI is output to the display panel 100 during an Nth (N is a natural number) frame F (N). The left eye image LI is output based on the vertical synchronization signal VSYNC. The left eye image LI is output to the active period ACTIVE of the vertical synchronization signal VSYNC and is maintained during the blanking period VBI. The blanking period VBI may be set to about 10% or more of one frame period, and may be set to about 30% or more. For example, the blanking period VBI may be set to about 32% of one frame period.

The display panel 100 may be divided into the first to fourth display blocks DB1, DB2, DB3, and DB4 corresponding to the first to fourth light emitting blocks 450a, 450b, 450c, and 450d. have. The left eye image LI corresponds to first, second, third and fourth left eye images LI1, LI2, LI3, and LI4 corresponding to the first to fourth display blocks DB1, DB2, DB3, and DB4. Can be divided into

Each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may emit light in response to a high level light emission control signal, and may be turned off in response to a low level light emission control signal. For example, the first light emitting block 450a is a time point when the first left set time TL1 elapses from the time when the output of the first left eye image LI1 is completed on the first display block DB1 of the display panel. It is emitted to. The second light emitting block 450b emits light when the second left set time TL2 elapses from the time when the output of the second left eye image LI2 is completed to the second display block DB2. The third light emitting block 450c emits light when the third left set time TL3 has elapsed from when the output of the third left eye image LI3 is completed to the third display block DB3. The fourth light emitting block 450d emits light when the fourth left set time TL4 has elapsed from when the output of the fourth left eye image LI4 is completed to the fourth display block DB4. The first to fourth left setting times TL1, TL2 .TL3 and TL4 may be set based on the response speed LC of the liquid crystal. For example, the first to fourth left settling times TL1, TL2.TL3 and TL4 may include a time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is saturated. May be substantially the same or larger.

The shutter glasses 600 may include the first to fourth light emitting blocks 450a, 450b, 450c, and 450d on the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the left eye image is displayed. While the generated light is provided, the left eye shutter 610 is opened and the right eye shutter 620 is closed. The left eye shutter 610 is opened when the first light emitting block 450a emits light corresponding to the left eye image LI, and the first light emitting block 450a emits light corresponding to the right eye image RI. It is closed before it becomes.

An observer recognizes the first left eye image LI1 through the left eye shutter 610 while the first light emitting block 450a emits light, and the left eye shutter (L) while the second light emitting block 450b emits light. The second left eye image LI2 is recognized through 610. In addition, the observer recognizes the third left eye image LI3 through the left eye shutter 610 while the third light emitting block 450c emits light, and while the fourth light emitting block 450d emits light. The fourth left eye image LI4 is viewed through the left eye shutter 610.

Also, the right eye image RI is output to the display panel 100 during the M (M is a natural number larger than N) frame F (M). In FIG. 11, M is illustrated as an example of N + 1. The right eye image RI corresponds to the first, second, third and fourth right eye images RI1, RI2, RI3, and RI4 corresponding to the first to fourth display blocks DB1, DB2, DB3, and DB4. Can be divided into

Each of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may emit light in response to a high level light emission control signal, and may be turned off in response to a low level light emission control signal. For example, the first light emitting block 450a emits light when the first right set time TR1 elapses from the time when the output of the first right eye image RI1 is completed to the first display block DB1. do. The second light emitting block 450b emits light when the second right set time TR2 has elapsed from the time when the output of the second right eye image RI2 is completed to the second display block DB2. The third light emitting block 450c emits light when the third right set time TR3 elapses from the completion of the output of the third right eye image RI3 to the third display block DB3. The fourth light emitting block 450d emits light when the fourth right set time TR4 has elapsed from when the output of the fourth right eye image RI4 is completed to the fourth display block DB4. The first to fourth right set times TR1, TR2. TR3 and TR4 may be substantially equal to or greater than a time required to reach a luminance corresponding to about 60% of the luminance when the liquid crystal is segmented. have. The first left set time TL1, the first right set time TR1, the first left set time TL1, the first right set time TR1, and the second left set time TL2. ), The second right set time TR2, the third left set time TL3, the third right set time TR3, the fourth left set time TL4, and the fourth right set time TR4. ) May be substantially identical to each other, and both of the first to fourth left setting times TL1 to TL4 and the first to fourth right setting times TR1 to TR4 may be substantially the same.

The shutter glasses 600 may display the first to fourth light emitting blocks 450a, 450b, 450c, and 450d on the first to fourth display blocks DB1, DB2, DB3, and DB4 on which the right eye image is displayed. The right eye shutter 620 is opened while the generated light is provided, and the right eye shutter 620 is closed. The left eye shutter 610 is opened when the first light emitting block 450a emits light corresponding to the right eye image RI, and the first light emitting block 450a emits light corresponding to the right eye image RI. It is closed before it becomes.

An observer recognizes the first left eye image LI1 through the left eye shutter 610 while the first light emitting block 450a emits light, and the left eye shutter (L) while the second light emitting block 450b emits light. The second left eye image LI2 is recognized through 610. In addition, the observer recognizes the third left eye image LI3 through the left eye shutter 610 while the third light emitting block 450c emits light, and while the fourth light emitting block 450d emits light. The fourth left eye image LI4 is viewed through the left eye shutter 610.

According to the present embodiment, the blanking period VBI of the vertical synchronization signal VSYNC is relatively extended compared to the blanking period VBI of the vertical synchronization signal VSYNC shown in FIG. 8. The active period for displaying the LI or the right eye image RI is shortened. Accordingly, the driving margin of the light source unit 450 can be secured. That is, the emission duty width of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d may be increased as compared to the stereoscopic image display method of FIG. 8. As such, when the emission duty width of the first to fourth light emitting blocks 450a, 450b, 450c, and 450d is increased, the luminance of the display panel 100 is improved, thereby improving display quality of the 3D stereoscopic image. You can.

11 is only an example in which the number of display blocks and corresponding light emitting blocks is four, respectively, and the number of display blocks and light emitting blocks may be three or five or more.

As described above, according to the exemplary embodiments of the present invention, the light source unit for providing light to the display panel is divided into a plurality of light emitting blocks such that each of the left and right eye images is time-divided into a plurality of images and viewed. By controlling the light emission timing of the light emitting blocks to allow the display panel to be visually recognized while the left eye image or the right eye image is completely displayed, the left eye and the right eye image may be mixed to prevent cross talk from occurring.

In addition, a 3D stereoscopic image may be implemented using a general 120Hz driving frequency without extending the vertical blanking period. Furthermore, when the vertical blanking period is extended, the driving margin of the light source unit can be secured, thereby improving display quality of the 3D stereoscopic image.

Although described above with reference to preferred embodiments of the present invention, those skilled in the art or those skilled in the art without departing from the spirit and scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made within the scope of the invention.

100: display panel 200: panel driver
300: timing controller 400: light supply unit
420a: first light emitting block 420b: second light emitting block
500: light source driving unit 600: shutter glasses
610: left eye shutter 620: right eye shutter

Claims (35)

Outputting a left eye image to a display panel divided into k (k is a natural number of two or more) display blocks during an Nth (N is a natural number) frame;
Providing light to each display block when the first to kth left setting times corresponding to the k display blocks have elapsed from the time when the output of the corresponding left eye image is completed for each display block;
Outputting a right eye image to the display panel during an Mth frame (M is a natural number greater than N);
Providing light to each of the display blocks when the first to kth right set times corresponding to the k display blocks have elapsed from the completion of outputting the right eye image to the respective display blocks; And
And adjusting opening / closing time of the left eye shutter and the right eye shutter of the shutter glasses in response to the left eye image or the right eye image displayed on each of the display blocks. The method of claim 1, wherein the opening and closing time of the left eye shutter and the right eye shutter is adjusted.
Opening the left eye shutter of the shutter eyeglasses and closing the right eye shutter of the shutter eyeglasses while the light is provided to the k display blocks displayed in the left eye image; And
And opening the right eye shutter and closing the left eye shutter while the light is provided to the k display blocks displayed in the right eye image. The stereoscopic image display method of claim 1, wherein the left and right eye images are displayed at a frame frequency of 60 Hz or a multiple thereof. The liquid crystal display of claim 1, wherein at least one of the first to k th left setting times and the first to k th left setting times is set based on a response speed of the liquid crystal included in the display panel. Stereoscopic image display method. 5. The liquid crystal display of claim 4, wherein at least one of the first to kth left setting times and the first to kth left setting times corresponds to a luminance corresponding to 60% of the luminance when the liquid crystal is saturated. A stereoscopic image display method, characterized in that it is equal to or greater than the time required to reach. The stereoscopic image display method of claim 4, wherein the first to k th left setting times are substantially the same. The stereoscopic image display method of claim 4, wherein the first to k th right set times are substantially the same. 5. The stereoscopic image display method of claim 4, wherein the j-th (j is a natural number less than or equal to k) right setting time is substantially the same as the j-th left setting time. The stereoscopic image display method of claim 8, wherein the first to kth left set times and the first to kth right set times are substantially the same. The method of claim 1, wherein the light is provided to each of the display blocks is equal to or less than a time of the Nth frame minus the first to kth left setting periods corresponding to the respective display blocks. Stereoscopic image display method. The method of claim 1, wherein the light is provided to each of the display blocks is equal to or less than the time of the Mth frame minus the first to k th right setting periods corresponding to each of the display blocks. Stereoscopic image display method. The method of claim 1,
And a left eye image is output from the (N + 1) th frame immediately after the Nth frame to the (M-1) th frame immediately before the Mth frame. The method of claim 12,
The left eye image displayed from the (N + 1) th frame to the (M-1) th frame is the same as the left eye image of the Nth frame or an image generated based on the left eye image of the Nth frame. Video display method. The method of claim 12,
The left eye image displayed from the (N + 1) th frame to the (M-1) th frame is an image corresponding to black gradation substantially. The method of claim 1,
And a right eye image is output from the (M + 1) frame, which is the next frame after the M frame, to the (2M-N-1) frame, which is a frame immediately preceding the (2M-N) frame. 16. The method of claim 15,
The right eye image displayed from the (M + 1) th frame to the (2N-M-1) frame is the same as the right eye image of the Mth frame or an image generated based on the right eye image of the Mth frame. Image display method characterized in that. 16. The method of claim 15,
The right eye image displayed from the (M + 1) th frame to the (2N-M-1) th frame is an image corresponding to black gradation substantially. a light source unit including k (k is two or more natural numbers) light emitting blocks and providing light;
A display panel divided into k display blocks corresponding to the k light emitting blocks, and configured to periodically display a left eye image and a right eye image;
Shutter glasses including a left eye shutter and a right eye shutter, and selectively opening and closing the left eye shutter and the right eye shutter according to an image displayed on the display panel; And
During the Nth (N is a natural number) frame, a left eye image is output to a display panel divided into k display blocks, and corresponding to the k display blocks from the time point at which output of the left eye image is completed for each display block. The light is provided to each of the display blocks when the first to kth left set times elapse,
During the Mth (M is a natural number greater than N) frame, the right eye image is output to the display panel divided into k display blocks, and the output of the right eye image to each of the display blocks is performed on the k display blocks. And a light source driver configured to control the light source unit to provide the light to each of the display blocks when a corresponding first to kth left set time elapses. 19. The apparatus of claim 18, wherein the shutter glasses open the left eye shutter and close the right eye shutter while the light is provided to the k display blocks on which the left eye image is displayed.
And the left eye shutter and the left eye shutter are closed while the light is provided to the k display blocks on which the right eye image is displayed. The display device of claim 18, wherein the display panel displays the left and right eye images at a frame frequency of 60 Hz or a multiple thereof. The display of claim 18, wherein at least one of the first to k th left setting times and the first to k th left setting times is set based on a response speed of the liquid crystal included in the display panel. Device. 22. The liquid crystal display of claim 21, wherein at least one of the first to k th left setting times and the first to k th left setting times corresponds to a luminance corresponding to 60% of the luminance when the liquid crystal is saturated. A display device, characterized in that it is equal to or greater than the time it takes to reach. The display apparatus of claim 18, further comprising: a timing controller configured to control driving timings of the k light emitting blocks and the shutter glasses based on the left eye image and the right eye image displayed on the display panel; And
And a panel driver which drives the display panel under the control of the timing controller. The light source driving unit of claim 18, wherein the light source driving unit is equal to a time when the light is provided to each of the display blocks by subtracting the first to kth left setting periods corresponding to each of the display blocks from the period of the Nth frame. Or small display device. 19. The method of claim 18, wherein the light source driver is equal to a time when the light is provided to each of the display blocks minus the first to k th right setting periods corresponding to each of the display blocks from the period of the M-th frame. Or small display device. 19. The display device of claim 18, further comprising a light blocking member disposed between the light emitting blocks adjacent to each other to reduce or block light leakage from the block. The display device of claim 18, wherein each of the k light emitting blocks includes at least one light source, and the light source is a linear light source or a point light source. The display device of claim 27, wherein the light source unit is disposed in at least one side portion of the display panel. The display device of claim 27, wherein the light source unit is disposed under the display panel. The method of claim 18,
And a left eye image from the (N + 1) th frame immediately after the Nth frame to the (M-1) th frame immediately before the Mth frame. The method of claim 30,
The left eye image displayed from the (N + 1) th frame to the (M-1) th frame is the same as the left eye image of the Nth frame or an image generated based on the left eye image of the Nth frame. Display device. The method of claim 30,
And a left eye image displayed from the (N + 1) th frame to the (M-1) th frame is an image corresponding to a black gradation substantially. The method of claim 18,
And a right eye image from a (M + 1) frame immediately after the M frame to a (2M-N-1) frame immediately before the (2M-N) frame. The method of claim 33, wherein
The right eye image displayed from the (M + 1) th frame to the (2N-M-1) frame is the same as the right eye image of the Mth frame or an image generated based on the right eye image of the Mth frame. Display device characterized in that. The method of claim 33, wherein
The right eye image displayed from the (M + 1) th frame to the (2N-M-1) th frame is an image corresponding to black gradation substantially.

Images