CN102646405A - Liquid crystal display refreshing method, liquid crystal display screen, display and television - Google Patents

Embodiment

Below in conjunction with Figure of description and embodiment the present invention is done detailed description.

LCD method for refreshing of the present invention is that at least two row picture element modules are connected on the same turntable driving line in the LCD, for above-mentioned at least two row picture element modules cut-in voltage is provided simultaneously by the turntable driving line.

Open when can realize at least two row picture element modules, realized the raising of refresh rate, make stable state left eye (right eye) signal in backlight control zone more, reduce crosstalking of fast gate-type 3D LCD through this method.

All comprise three liquid crystal cells in each picture element module on being connected same turntable driving line, in order not reduce the resolution of display picture, each liquid crystal cells all is connected to different data-driven line.When the turntable driving line provides cut-in voltage, the liquid crystal cells conducting that is connected by the data-driven line traffic control.

In the time of only need improving refresh rate when the resolution of not considering display picture, can use identical data-driven line to control two row liquid crystal cells conductings simultaneously.

In LCD method for refreshing of the present invention, the concrete picture element module line number that connects is not limit on the same turntable driving line.In view of the load of practicality and data-driven unit, the present invention preferably is connected two row picture element modules on the same turntable driving line.

As shown in Figure 2, the capable picture element module of N and the capable picture element module of N+1 of LCD is connected on the same turntable driving line, be that capable picture element module of N and the capable picture element module of N+1 provide cut-in voltage simultaneously by this turntable driving line.

M picture element module in the capable picture element module of N comprises three liquid crystal cells, M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells.P picture element module in the capable picture element module of N+1 comprises three liquid crystal cells, P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.

When the turntable driving line provided cut-in voltage, the M1 liquid crystal cells was by J column data drive wire control conducting, and the M2 liquid crystal cells is by J+2 column data drive wire control conducting, and the M3 liquid crystal cells is by J+4 column data drive wire control conducting; The P1 liquid crystal cells is by J+1 column data drive wire control conducting, and the P2 liquid crystal cells is by J+3 column data drive wire control conducting, and the P3 liquid crystal cells is by J+5 column data drive wire control conducting.

Like Fig. 3 and shown in Figure 4; Compared to prior art shown in Figure 1; The inventive method application results is to make first row of LCD and the mistiming that last column reaches stable state reduce half; Under the constant situation of backlight control, the steady-state signal that gets into the control zone increases, and crosstalks thereby reduced effectively.

In order to realize above-mentioned LCD method for refreshing, LCDs of the present invention is provided with a plurality of picture element modules, turntable driving line and data-driven line, and at least two row picture element modules are connected on the same turntable driving line.Stronger and reduce the load of data-driven unit for practicality, the present invention preferably is connected two row picture element modules on the same turntable driving line.

Each picture element module that is connected on the same turntable driving line all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the electronic switch of controlling the liquid crystal upset.The control end of electronic switch is connected on the turntable driving line, and first controlled end of electronic switch connects liquid crystal, and second controlled end of electronic switch is connected on the data-driven line.

Through this connected mode, make the upset of liquid crystal be in slave mode.When scan drive cell pressurizeed to picture element module through the turntable driving line, the control end that is connected on the turntable driving line was opened electronic switch.When the data-driven line also pressurizes conducting, second controlled end that is connected this data-driven line will link to each other with first controlled end, and the liquid crystal on first controlled end is with luminous.

In order not influence the resolution of display picture, second controlled end that is connected same the liquid crystal cells on the turntable driving line is connected on the different data-driven line.Like this, the displaying contents of each liquid crystal cells all is the picture content corresponding, rather than is changed to the content of other liquid crystal cells on the same turntable driving line.

The concrete structure of electronic switch is not limit, and the function that can play controlled back opening and closing gets final product.Electronic switch is preferably three utmost points and closes or FET, and these two kinds of device products maturations are functional, cheap for manufacturing cost.Especially FET becomes the first-selected device of electronic switch because of its better performance.

The liquid crystal cells that comprises in the picture element module is the fundamental element that LCD picture shows.LCD normally is the basis with three primary colors, so comprise three liquid crystal cells in the picture element module, these three liquid crystal cells are respectively red liquid crystal unit, green liquid crystal unit and blue liquid crystal unit.But be not limited thereto, select other color, as long as can satisfy the requirement of display picture color as primary colors.

LCD of the present invention comprises scan drive cell, data-driven unit and above-mentioned LCDs at least, and the turntable driving line on the LCDs is connected to scan drive cell, and the data-driven line on the LCDs is connected to the data-driven unit.

Liquid crystal TV set of the present invention comprises sequential control system and above-mentioned LCD at least.Sequential control system is connected to LCD and luma data is transferred to the scan drive cell in the said LCD.Make stable state left eye (right eye) signal in the backlight control zone more, reduce crosstalking of fast gate-type 3D LCD.

Preferred embodiment one: as shown in Figure 2; LCDs is provided with 1366 * 768 picture element modules; Also be provided with turntable driving line and data-driven line on the LCDs, capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.

Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.

Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.

The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+2 column data drive wire, and the M3 liquid crystal cells connects J+4 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+3 column data drive wire, and the P3 liquid crystal cells connects J+5 column data drive wire.

When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+4 column data drive wire and J+1 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted blueness, and Gi2 is capable, and picture element module has lighted redness.

Using turntable driving line Gi in the present embodiment is that capable picture element module of Gi1 and the capable picture element module of Gi2 provide cut-in voltage simultaneously; Control the M3 liquid crystal cells by J+4 column data drive wire and show blueness, control P1 liquid crystal cells exhibit red by J+1 column data drive wire.Two row pressing mode have simultaneously been accelerated refresh rate, have reduced crosstalking of fast gate-type 3D LCD effectively.

Preferred embodiment two: LCDs is provided with 1920 * 1080 picture element modules; Also be provided with turntable driving line and data-driven line on the LCDs, the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 are connected on same the turntable driving line Gi.

Each picture element module (PIEXL) in the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.

Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; The capable picture element module of Gi2 comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells; Gi3 is capable, and picture element module comprises S1 liquid crystal cells, S2 liquid crystal cells and S3 liquid crystal cells

The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+3 column data drive wire, and the M3 liquid crystal cells connects J+6 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+4 column data drive wire, and the P3 liquid crystal cells connects J+7 column data drive wire; The S1 liquid crystal cells connects J+2 column data drive wire, and the S2 liquid crystal cells connects J+5 column data drive wire, and the S3 liquid crystal cells connects J+8 column data drive wire.

When turntable driving line Gi provided cut-in voltage, the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+3 column data drive wire, J+1 column data drive wire and J+8 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted green, and the capable picture element module of Gi2 has lighted redness, and Gi3 is capable, and picture element module has lighted blueness.

Using turntable driving line Gi in the present embodiment is that the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 provide cut-in voltage simultaneously; Controlling the M2 liquid crystal cells by J+3 column data drive wire shows green; Control P1 liquid crystal cells exhibit red by J+1 column data drive wire, control the S3 liquid crystal cells by J+8 column data drive wire and show blue.Triplex row pressing mode has simultaneously been accelerated refresh rate, has reduced crosstalking of fast gate-type 3D LCD effectively.

Preferred embodiment three: LCDs is provided with 1366 * 768 picture element modules, also is provided with turntable driving line and data-driven line on the LCDs, and capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.

Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the N type triode of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The base stage of triode is connected on the turntable driving line, and emitter connects liquid crystal, and collector is connected on the data-driven line.

Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.

The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+2 column data drive wire, and the M3 liquid crystal cells connects J+4 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+3 column data drive wire, and the P3 liquid crystal cells connects J+5 column data drive wire.

When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+4 column data drive wire and J+1 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted blueness, and Gi2 is capable, and picture element module has lighted redness.

In the main difference of present embodiment and preferred embodiment one is to adopt triode to substitute FET as electronic switch, utilizes the maturity of triode series of products to improve the stability in use of LCD.Turntable driving line Gi is that capable picture element module of Gi1 and the capable picture element module of Gi2 provide cut-in voltage simultaneously, controls the M3 liquid crystal cells by J+4 column data drive wire and shows blueness, controls P1 liquid crystal cells exhibit red by J+1 column data drive wire.Two row pressing mode have simultaneously been accelerated refresh rate, have reduced crosstalking of fast gate-type 3D LCD effectively, make the display effect of LCD good.

Preferred embodiment four: LCDs is provided with 1920 * 1080 picture element modules, also is provided with turntable driving line and data-driven line on the LCDs, and capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.

Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.

Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.

Using identical data-driven line is two row picture element module pressurizations simultaneously.That is, J column data drive wire connects M1 liquid crystal cells and P1 liquid crystal cells simultaneously, and J+1 column data drive wire connects M2 liquid crystal cells and P2 liquid crystal cells simultaneously, and J+2 column data drive wire connects M3 liquid crystal cells and P3 liquid crystal cells simultaneously.

When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, and J+1 column data drive wire controls the M2 liquid crystal cells and the P2 liquid crystal cells shows green simultaneously.

This preferred embodiment is connected to two row picture element modules on the same single data drive wire with not being both of preferred embodiment one accordingly, shows identical content by two picture element modules of this data-driven line traffic control.Though on the resolution of picture, lose, improved the refresh rate of display, reduced and crosstalked.When displaying contents during to resolution less demanding, the characteristics of present embodiment are just apparent in view.

More than; Be merely preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.