JPH11202285A - Liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display device which enhancer the responsiveness of liquid crystal display without considerably changing the structure heretofore and which can prevent a blurred display of tailing even when a moving image is displayed. SOLUTION: A vertical scanning period, which does not include the vertical blanking period of a liquid crystal display part 12, is defined as a vertical term T1 and this vertical term T1 is divided into four scanning terms. The scanning order of four scanning terms is made corresponding to the arrangement order of four light emitting areas 33-1, 33-2, 33-3 and 33-4. These area are respective controlled by a turning-on control circuit 35 so as to emit light during a T1/4 term. Any one of discharge lamps 34-1, 34-2, 34-3 and 34-4 provided for each of respective light emitting areas 33-1, 33-2, 33-3 and 33-4 is turned on just for 1/4 vertical term after the 3/4 vertical term from the write timing of a liquid crystal display part 12, and turned off during the remaining 3/4 vertical term.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid crystal display device having a backlight and suitable for displaying moving images.

[0002]

2. Description of the Related Art Conventionally, flat panel display devices such as various monitors and personal computers have been used for TV broadcasting and DV.
A moving image is displayed by D or the like. As this kind of flat panel display device, a liquid crystal display device is small and lightweight and widely used.

However, when a moving image is photographed on a conventional liquid crystal display device, sufficient responsiveness cannot be obtained due to the characteristics of the liquid crystal, resulting in a blurred display with a tail. As a means for solving such a problem, research and development of a liquid crystal display element having a new operation principle, for example, a ferroelectric liquid crystal and an antiferroelectric liquid crystal have been developed. In addition, in this type of new liquid crystal display device, the liquid crystal layer must be made much thinner than the conventional liquid crystal display device, and the bonding of the glass and the control of the gap are problems in manufacturing.

In addition to the liquid crystal display element, there are a plasma display and a cathode ray tube (CRT), which have a large shape and consume a large amount of power.

[0005]

As described above, in the conventional liquid crystal display device, sufficient responsiveness cannot be obtained due to the characteristics of the liquid crystal.
In addition, the liquid crystal display element of the new operation principle has a problem in manufacturing, and a device other than the liquid crystal has a problem that the shape and power consumption are large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and enhances the responsiveness of a liquid crystal display without largely changing the conventional structure. Even if a moving image is displayed, the liquid crystal does not have a blurred display with a tail. It is an object to provide a display device.

[0007]

According to the present invention, there are provided a plurality of signal lines and a plurality of scanning lines arranged to cross each other, a signal line driver circuit for writing display data to each of these signal lines, and A liquid crystal display unit having a scanning line driver circuit for scanning for each of the scanning lines; a light emitting region divided into N in the vertical scanning direction; and a lighting control circuit for the light emitting region. The control circuit includes a backlight for illuminating the liquid crystal display unit by sequentially turning on and off the N light emitting regions in synchronization with the vertical synchronization signal of the liquid crystal display unit.

A vertical scanning period that does not include the vertical blanking period of the liquid crystal display section is defined as a vertical period T1. The vertical period T1 is divided into N scanning periods, and the scanning order of the N scanning periods is N. In the relationship corresponding to the arrangement order of the individual light-emitting regions, the light-emitting regions arranged in the next stage emit light during the period T1 / N from the start of scanning in the scanning period corresponding to the own light-emitting region.

Further, a period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2, and the vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light emitting regions, the light emitting regions arranged in the next stage emit light during the period T2 / N from the start of scanning in the scanning period corresponding to the own light emitting region. Let it.

Further, a period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2, and the vertical period T2 is divided into N scanning periods, and the scanning of the N scanning periods is performed. In a relationship in which the order corresponds to the arrangement order of the N light-emitting regions, the scanning period corresponding to the light-emitting region arranged in front of the self-light-emitting region is half of the scanning period, and during the period substantially T2 / N, The self-light-emitting area emits light.

Further, a period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2, and the vertical period T2 is divided into N scanning periods, and the scanning of the N scanning periods is performed. In a relationship in which the order corresponds to the arrangement order of the N light emitting regions, the light emitting regions arranged in the next stage are arranged for a period of T2 / 2N from the point in time when half the scanning of the scanning period corresponding to the own light emitting region has elapsed. Flash.

A period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2. The vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light emitting regions, the light emitting region of the next stage emits light for a period of 2T2 / N from the start of scanning in the scanning period corresponding to the own light emitting region.

By sequentially turning on and off the N light emitting regions in synchronization with the vertical synchronizing signal of the liquid crystal display unit, the response of the liquid crystal display can be improved without substantially changing the structure, and the moving image display time can be improved. Eliminates tailing.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the liquid crystal display device of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the liquid crystal display device uses, for example, a 640 × 480 × RGB dot thin film transistor (Thin Film Transistor), and a signal input terminal 11 for inputting a video signal and a synchronization signal. It has.

This liquid crystal display device has a liquid crystal display
The liquid crystal display unit 12 has a plurality of 640 × RGB signal lines 15 and a plurality of 480 scanning lines 16 arranged orthogonally to each other.

A signal line driver circuit 18 for writing display data is provided for each signal line 15.
The signal line driver circuit 18 has a shift register 19, a latch 20, and a D / A conversion circuit 21 provided for each signal line 15, and the shift register 19 outputs a timing pulse STH and a shift clock φ1. By entering
The display data DATA is sequentially taken into each latch 20. Then, when the display data DATA is accumulated in all the latches 20,
The stored display data is output to the D / A conversion circuit 21 upon receiving the horizontal synchronizing signal φ2, and is converted into an analog signal.
The signal is output to the corresponding signal line 15 via the buffer 22.

For each scanning line 16, a scanning line driver circuit 23 for scanning is provided. These scanning line driver circuits 23 include a shift register 24 provided for each scanning line 16 and a switch circuit 25 having switching elements 25a and 25b. Of these, shift register 24
Receives the scanning timing pulse (vertical synchronization signal) STV and the scanning shift clock (horizontal synchronization signal) φ2 to sequentially shift the scanning timing pulse. In the switch circuit 25, when the scanning timing pulse STV is input, the voltage Vg2 is selected by the switching element 25b, and when the scanning timing pulse STV is not input, the voltage Vg1 is selected by the switching element 25a, and the corresponding scanning line is selected.
Output to 16. That is, a scanning pulse is output to each scanning line 16 for each line.

Further, a thin film transistor for driving a pixel (Thin Film) is provided at an intersection of the signal line 15 and the scanning line 16.
Transistor) 26, and pixel electrodes 27 are provided, and each pixel electrode 27 is connected to a common electrode 29 via a liquid crystal layer 28.
The storage capacitor 30 is connected in parallel to the pixel electrode 27, the liquid crystal layer 28, and the common electrode 29. The liquid crystal layer 28 is made of a thin twisted nematic (T
N) A liquid crystal layer or a ferroelectric liquid crystal layer may be used.

A pixel constituted by the pixel electrode 27, the liquid crystal layer 28, and the common electrode 29 outputs a signal output to the corresponding signal line 15 by outputting a scanning pulse to the corresponding scanning line 16. The voltage is written.

The backlight unit 13 includes a backlight 33 for illuminating the display surface of the liquid crystal display unit 12. The number of the backlights 33 is N, for example, 4 in the vertical scanning direction of the liquid crystal display unit 12. Strip-shaped light-emitting area 33 divided into pieces
-1, 33-2, 33-3, and 33-4, and each of these light emitting regions
Discharge lamps 34-1, 34-2, 34 for each 33-1, 33-2, 33-3, 33-4
-3 and 34-4 are provided.

Each of these discharge lamps 34-1, 34-2, 34-3, 34
For -4, a lighting control circuit 35 is provided. The lighting control circuit 35 has a frequency dividing counter 36, a shift register 37, and a lighting driving inverter 38. The counter 36 divides the frequency of the scan shift clock φ2, and the shift register 37 generates a scan timing pulse STV. The divided signals are sequentially supplied to the respective inverters 38 in synchronization with the discharge lamps 34-1, 33-2, 33-3, and 33-4. , 34-2, 34-3, 34-4
Are sequentially turned on and off one by one at a predetermined cycle.
Therefore, the backlight 33 has N light-emitting regions 33-1,
Scan emission is performed sequentially for each of 33-2, 33-3, and 33-4.

Next, the light emitting areas 33-1, 33-2, 33-3, 33-4
Will be described with reference to a timing chart shown in FIG.

First, a vertical scanning period not including the vertical blanking period of the liquid crystal display section 12 is defined as a vertical period T1, and this vertical period T1 is divided into four scanning periods T11, T12, T13, and T14. Then, the four scanning periods T11, T1
The scanning order of 2, T13, and T14 is changed to four light emitting regions 33-1, 33-.
It corresponds to the arrangement order of 2, 33-3, 33-4.

The liquid crystal display unit 12 has 480 scanning lines 16.
The scanning shift clock φ 2, which is also a horizontal synchronizing signal by the scanning line driver circuit 23, sequentially applies a pulse voltage to these 480 scanning lines 16 to perform scanning.

Here, a vertical blanking period, a vertical scanning period not including the period from 481 pulses to 525 pulses, and a period from 1 to 480 pulses required for scanning the 480 scanning lines 16 are defined as a vertical period T1. The vertical period T1 is divided by the number of light emitting areas N = 4, and four scanning periods T11, a period for scanning the first to 120th scanning lines, a scanning period T12, and a 121 to 240th scanning line. Scanning line scanning period, scanning period T13, 241st to 36th
Scanning period T14, 361 during scanning of the 0th scanning line
The period from the 480th scanning line to the 480th scanning line is set as a scanning period, and the scanning order corresponds to the arrangement order of the four light emitting regions 33-1, 33-2, 33-3, and 33-4.

That is, the first scanning period T11 in the scanning order corresponds to the first light emitting region 33-1 in the arrangement order. Similarly, the scanning period T12 corresponds to the light emitting region 33-2, and the scanning period T13 corresponds to the light emitting region 33-1.
The scanning period T14 corresponds to the light-emitting region 33-4, respectively.

In such a relationship, the scanning line driver circuit 23 and the lighting control circuit 35 of the backlight 33 are synchronized with the scanning timing pulse STV having a period of 16 ms.
Each of the light emitting regions 33-1, 33-2, 33-3, and 33-4 starts scanning for a scanning period T11 corresponding to, for example, its own light emitting region 33-1, from which point T1 / 4. During the period, while the 120 scanning lines 16 are scanned, the light emitting areas 33 arranged in the next stage
-2 is controlled by the lighting control circuit 35 to emit light.

Similarly, with the start of scanning in the scanning period T12 corresponding to the light emitting area 33-2, the light emitting area 33-3 at the next stage is changed to the light emitting area 33-2.
The next-stage light-emitting region 33-4 starts with the scanning period T13 corresponding to the light-emitting region 33-4, and the next-stage light-emitting region 33-1 starts with the scanning period T14 corresponding to the light-emitting region 33-4. Are controlled by the lighting control circuit 35 to emit light during the T1 / 4 period.

The light emission period T 1/4 corresponds to the lighting control circuit.
The scanning shift clock φ is controlled by a counter 36 constituting 35.
2 is divided by every 120 pulses.
In addition, the signals divided at every T1 / 4 period are sequentially supplied to the four inverters 38 by the shift register 37 in synchronization with the vertical synchronizing signal STV, so that the four light emitting regions are sequentially arranged at a predetermined cycle T1 / 4. It can be turned on and off, so-called scan light emission.

In other words, any one of the discharge lamps 34-1, 34-2, 34-3, 34-4 provided for each light emitting area is three-quarters vertical from the writing timing of the liquid crystal display unit 12. After the period, the light is turned on for only a quarter vertical period, and is turned off for the remaining three quarter vertical periods.

As described above, in the liquid crystal display device in which the backlight 33 is divided into N light-emitting areas and scan light is sequentially emitted, a television (TV) image, a digital video disk (DVD) image, and the like are displayed. The moving image was clearly visible without tailing. In particular, the characters of the flowing telop could be displayed without trailing regardless of the speed of the movement. Further, the four discharge lamps 34-1, 34-2, 34-3, and 34-4 were not noticeable as uneven display, and a uniform display was obtained.

Next, a second embodiment will be described with reference to a timing chart shown in FIG.

In the second embodiment, even during the vertical blanking period, the corresponding light emitting areas 33-1, 33-2, 33-3,
The 33-4 discharge lamps 34-1, 34-2, 34-3, 34-4 are turned on.

Here, the vertical scanning period of the liquid crystal display unit 12
The vertical blanking period between 1 and 480 pulses required for the operation of the 480 scanning lines 16, from 481 pulses to 5
The period up to 25 pulses is defined as a vertical period T2. Then, this vertical period T2 is defined as the number of light emitting areas N = 4.
, Four scanning periods T21, a period for scanning the 1st to 131st scanning lines, a scanning period T22, a period for scanning the 132th to 262nd scanning lines, and a scanning period T2.
3, a period of scanning the 263rd to 393rd scanning lines, a scanning period T24, a period of scanning the 394th to 480th scanning lines, and a period of 524 pulses which is a vertical blanking period. 33 light emitting areas
Correspond to the order of 1, 33-2, 33-3, 33-4.

That is, the first scanning period T21 in the scanning order corresponds to the first light-emitting region 33-1 in the arrangement order. Similarly, the scanning period T22 corresponds to the light-emitting region 33-2, and the scanning period T23 corresponds to the light-emitting region.
The scanning period T24 corresponds to the light emitting area 33-4, and the scanning period T24 corresponds to the light emitting area 33-4.

In such a relationship, the scanning line driver circuit 23 and the lighting control circuit 35 of the backlight 33 are synchronized with the scanning timing pulse STV having a period of 16 ms.
Each of the light emitting regions 33-1, 33-2, 33-3, and 33-4 starts scanning for a scanning period T21 corresponding to the light emitting region 33-1, for example, for a period T2 / 4 from that point. During the scanning of the 131 scanning lines 16, the lighting control circuit 35 controls the light emitting region 33-2 arranged in the next stage to emit light.

Similarly, with the start of scanning in the scanning period T22 corresponding to the light emitting region 33-2, the light emitting region 33-3 of the next stage is changed to the light emitting region 33-2.
The next-stage light-emitting region 33-4 is associated with the start of scanning in the scanning period T23 corresponding to 33-3, and the next-stage light-emitting region 33-1 is associated with the start of scanning in the scanning period T24 corresponding to the light-emitting region 33-4. Are controlled by the lighting control circuit 35 so as to emit light during the T2 / 4 period.

The light emission period T 2/4 corresponds to the lighting control circuit 35.
Scan shift clock φ2
Is divided by every 131 pulses.

When a TV image, a DVD image, or the like is displayed on the liquid crystal display device having such a configuration, as in the first embodiment, a moving image is clearly seen without tailing. Was completed. In particular, in the second embodiment, the light emitting area corresponding to the vertical blanking period also
Since the discharge lamp 34-1 of 33-1 is turned on, the brightness can be increased.

Next, a third embodiment will be described with reference to a timing chart shown in FIG.

In the third embodiment, the discharge lamps 34-1 and 34 correspond to the scan start timing to the scan period corresponding to the own light-emitting area, and about one-fourth of the vertical period before and after the scan start timing. Turn on -2, 34-3, 34-4.

Also in this case, a period obtained by adding the vertical blanking period to the vertical scanning period of the liquid crystal display unit 12 is defined as a vertical period T2, and this vertical period T2 is divided into four light emitting regions N = 4. , And the scanning order is made to correspond to the arrangement order of the four light emitting regions 33-1, 33-2, 33-3, and 33-4.

That is, the first scanning period T21 in the scanning order corresponds to the first light emitting region 33-1 in the arrangement order. Similarly, the scanning period T22 corresponds to the light emitting region 33-2, and the scanning period T23 corresponds to the light emitting region 33-1.
The scanning period T24 corresponds to the light emitting area 33-4, and the scanning period T24 corresponds to the light emitting area 33-4.

In such a relationship, each light emitting region 33-
1, 33-2, 33-3, and 33-4 are, for example, self-luminous regions 33-2.
Scanning period T corresponding to the light emitting region 33-1 arranged in the previous stage of
The self-light-emitting area for 131 pulses during the T2 / 4 period from the time when the scanning of 21 is half, for example, 65 pulses have elapsed.
Make 33-2 emit light.

Similarly, for a period of 131 pulses from a point in time when half the scanning of the scanning period T22 corresponding to the light emitting region 33-2 has elapsed, the light emitting region 33-3 is in the scanning period T23 corresponding to the light emitting region 33-3. The light-emitting area 33-4 emits light for a period of 131 pulses from the point in time when half the scanning has elapsed. Further, one half of the scanning period T24 corresponding to the light emitting area 33-4 has elapsed from the point in time when half the scanning has elapsed.
The lighting control circuit 35 controls the light emitting region 33-1 to emit light for a period of 32 pulses.

In other words, in other words, for example, about one-quarter vertical period before and after the scanning start timing to the scanning period T22 corresponding to the self light emitting area 33-2.
The corresponding discharge lamps 34-1, 34-2, 34-3, 34-4 are turned on for 31 pulses, but for a period of 132 pulses only in the light emitting region 33-1.

With such a configuration, TV video, D
When a VD image or the like was projected, an image with a lot of movement could be clearly seen without tailing.

Next, a fourth embodiment will be described with reference to a timing chart shown in FIG.

In the fourth embodiment, each light emitting region 33
-1, 33-2, 33-3, 33-4 discharge lamps 34-1, 34
-2, 34-3, 34-4 are sequentially turned on for 1/8 vertical period.

Also in this case, a period obtained by adding the vertical blanking period to the vertical scanning period of the liquid crystal display unit 12 is defined as a vertical period T2. The scanning periods are T21, T22, T23, and T24, and the scanning order is made to correspond to the arrangement order of the four light emitting regions 33-1, 33-2, 33-3, and 33-4.

In such a relationship, each light emitting region 33-
1, 33-2, 33-3, and 33-4 are, for example, self-luminous regions 33-1.
, The scanning in the scanning period T21 corresponding to half, the 1/8 vertical period from the time when 65 pulses, which are the 1st to 65th scanning lines, has passed, and the 66th to 131st scanning lines in the T2 / 2N period During the 66 pulses, the lighting control circuit 35 controls the light emitting region 33-2 arranged in the next stage to emit light.

Similarly, from the point in time when half of the scanning in the scanning period T22 corresponding to the light emitting area 33-2 has elapsed, the light emitting area 33-3 of the next stage is obtained.
However, from the time when the scanning of the scanning period T23 corresponding to the light emitting region 33-3 has passed half, the next stage of the light emitting region 33-4 has passed, and the time when the scanning of the scanning period T24 corresponding to the light emitting region 33-4 has also passed half. The lighting control circuit 35 controls the light emitting region 33-1 at the next stage to emit light for 66 pulses, which are 1/8 vertical periods, respectively.

Also in this case, when a TV video, a DVD video, or the like was projected, a video with many motions could be clearly seen without tailing. Also discharge lamp
Since the lighting time per one of 34-1, 34-2, 34-3, and 34-4 was short, the brightness was reduced, but the outline of the moving image became clearer.

Next, a fifth embodiment will be described with reference to a timing chart shown in FIG.

In the fifth embodiment, each light emitting region 33
-1, 33-2, 33-3, 33-4 discharge lamps 34-1, 34
-2, 34-3, and 34-4 are sequentially turned on for approximately a half vertical period.

Also in this case, a period obtained by adding the vertical blanking period to the vertical scanning period of the liquid crystal display unit 12 is defined as a vertical period T2, and this vertical period T2 is divided into four light emitting regions N = 4. , And the scanning order is made to correspond to the arrangement order of the four light emitting regions 33-1, 33-2, 33-3, and 33-4.

In such a relationship, each light emitting region 33-
1, 33-2, 33-3, and 33-4 are, for example, self-luminous regions 33-1.
Is started, a 2T2 / N period, which is a half vertical period from that time, for example, scanning from the first scanning line to the 262nd scanning line, for a period of 262 pulses, Is controlled by the lighting control circuit 35 so that the light emitting area 33-2 arranged in the light emitting area emits light.

Similarly, with the start of scanning in the scanning period T22 corresponding to the light emitting region 33-2, the light emitting region 33-3 at the next stage is changed to the light emitting region 33-2.
The next-stage light-emitting region 33-4 is associated with the start of scanning in the scanning period T23 corresponding to 33-3, and the next-stage light-emitting region 33-1 is associated with the start of scanning in the scanning period T24 corresponding to the light-emitting region 33-4. The lighting control circuit 35 emits light for a period of 262 pulses, each of which is a half vertical period, but only for the light emitting region 33-1 for a period of 263 pulses.

Also in this case, when a TV video, a DVD video, or the like was projected, a video with a lot of motion could be clearly seen without tailing. Also discharge lamp
Since the lighting time per one of 34-1, 34-2, 34-3, and 34-4 is set to a half vertical period, the outline of the moving image is slightly blurred.
Brightness was greatly improved.

As a comparative example, the scan light emission control function was removed from the lighting control circuit 35 of the backlight unit 13 shown in FIG. 1 to replace the discharge lamps 34-1, 34-2, 34-3, and 34-4 with the conventional one. As a result of continuous lighting, tailing was conspicuous and blurred in TV images, DVD images, and the like.

[0062]

According to the present invention, the responsiveness of the liquid crystal is improved by simple and inexpensive means without substantially changing the conventional liquid crystal structure. Images can be obtained.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of a liquid crystal display device according to the present invention.

FIG. 2 is a timing chart showing lighting timing of a backlight unit according to the first embodiment.

FIG. 3 is a timing chart showing lighting timing of a backlight unit in the second embodiment.

FIG. 4 is a timing chart showing lighting timing of a backlight unit according to the third embodiment.

FIG. 5 is a timing chart showing lighting timing of a backlight unit in the fourth embodiment.

FIG. 6 is a timing chart showing lighting timing of a backlight unit in the fifth embodiment.

[Explanation of symbols]

 12 LCD display unit 15 Signal line 16 Scan line 18 Signal line driver circuit 23 Scan line driver circuit 33 Backlight 33-1, 33-2, 33-3, 33-4 Light emitting area 35 Lighting control circuit

Claims (6)

[Claims] 1. A plurality of signal lines and a plurality of scanning lines arranged crossing each other, a signal line driver circuit for writing display data to each of the signal lines, and scanning for each of the scanning lines. A liquid crystal display unit having a scanning line driver circuit for the light emitting device, a light emitting area divided into N pieces in the vertical scanning direction, and a lighting control circuit for the light emitting area. A liquid crystal display device comprising: a backlight for sequentially turning on and off the liquid crystal display section in synchronization with a vertical synchronization signal of the liquid crystal display section to illuminate the liquid crystal display section. 2. A vertical scanning period not including a vertical blanking period of a liquid crystal display section is defined as a vertical period T1, and this vertical period T1 is divided into N scanning periods, and the scanning order of the N scanning periods is N. In the relationship corresponding to the arrangement order of the individual light emitting regions, the light emitting regions arranged in the next stage are made to emit light for a period of T1 / N from the start of scanning in the scanning period corresponding to the own light emitting region. The liquid crystal display device according to claim 1, wherein: 3. A period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2. The vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light emitting regions, the light emitting region arranged in the next stage emits light during the period T2 / N from the start of scanning in the scanning period corresponding to the own light emitting region. 2. The liquid crystal display device according to claim 1, wherein 4. A period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2. The vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light-emitting regions, and for approximately T2 / N period from the point in time when half of the scanning period of the scanning period corresponding to the light-emitting region arranged before the own light-emitting region has elapsed. The liquid crystal display device according to claim 1, wherein the light emitting region emits light. 5. A vertical period T2 is a period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section. The vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light emitting regions, and the light emitting region arranged in the next stage emits light during a period of T2 / 2N from the point in time when half of the scanning of the scanning period corresponding to the own light emitting region has elapsed. 2. The liquid crystal display device according to claim 1, wherein 6. A period obtained by adding a vertical blanking period to a vertical scanning period of the liquid crystal display section is defined as a vertical period T2. The vertical period T2 is divided into N scanning periods, and the scanning order of the N scanning periods is determined. Is associated with the arrangement order of the N light emitting regions, the light emitting region of the next stage is made to emit light for a period of 2T2 / N from the start of scanning in the scanning period corresponding to its own light emitting region. 2. The liquid crystal display device according to claim 1, wherein: