CN102809856A - Active matrix liquid crystal display equipment - Google Patents
Active matrix liquid crystal display equipment Download PDFInfo
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- CN102809856A CN102809856A CN 201210256997 CN201210256997A CN102809856A CN 102809856 A CN102809856 A CN 102809856A CN 201210256997 CN201210256997 CN 201210256997 CN 201210256997 A CN201210256997 A CN 201210256997A CN 102809856 A CN102809856 A CN 102809856A
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Abstract
The invention provides active matrix liquid crystal display equipment. Each pixel comprises three sub-pixels; each sub-pixel comprises a main display area electrically coupled to a first scanning line and a first data line, a first display sub-area electrically coupled to a third scanning line and a second data line which correspond to a main display area of the next sub-pixel, and a second display sub-area electrically coupled to a second scanning line and preset voltage; and an area potential difference between the first display sub-area and the second display sub-area is controlled by the second scanning line. By using the active matrix liquid crystal display equipment, each sub-pixel in each pixel is divided into the main display area, the first display sub-area and the second display sub-area, the first display sub-area is coupled to the third scanning line and the second data line which correspond to a main display area of an adjacent sub-pixel, and the second display sub-area is electrically coupled to the second scanning line and the preset voltage, so that potential of each area is controlled by using the third scanning line and the second scanning line.
Description
Technical field
The present invention relates to lcd technology, relate in particular to a kind of active-matrix liquid crystal display.
Background technology
Current, (Liquid Crystal Display LCD) has low radiation, high resolving power, low consumpting power, advantage such as frivolous to liquid crystal display, and preferable picture quality can be provided.In order to realize the demand of high image quality; Most LCD take VA (Vertical Alignment; Vertical orientation) pixel design structure; This structure has preferable reaction time (Response time), high-contrast (Contrast Ratio) and than the better wide viewing angle advantages such as (Wide-view angle) of TN (Twisted Nematic, twisted-nematic).
In the prior art; In traditional four territories (domain) design; In with great visual angle, can cause bigger color offset phenomenon owing to four original domain LCD alignments; In order to solve the colour cast problem, when we need reduce LCD alignment at the light leak that causes with great visual angle, so need design four domain in addition again to improve the colour cast problem.4+4 domain (being also referred to as the 8domain mode) can suppress color offset phenomenon with great visual angle; On practical design is used; Roughly can comprise subregion independent signal control (for example 2D1G or 2D2G), drive controlling mode (Charging Sharing) or the like pixel technique.Such as; For solving the 8domain colour cast problem of 2D1G; Pixel design is become the 2D2G framework; Control the main viewing area and the sub-viewing area of sub-pixel respectively by two data lines, thereby and utilize regional current potential that specific sweep trace will this sub-viewing area to reduce to form the first sub-viewing area and the second sub-viewing area.But, in the solution of above-mentioned 2D1G and 2D2G, adopt the design and the 2D1G framework of two data lines (data line) can reduce pixel aperture ratio, and the more IC cost that can increase Source drive (source driver) of data line.
In view of this; How to design a kind of active-matrix liquid crystal display of novelty; Its pixel design framework is improved or adjusts, in the display performance that does not reduce equipment, reduce the usage quantity of electronic package as much as possible; Saving the cost of product, is a problem needing to be resolved hurrily of person skilled in the industry.
Summary of the invention
To the existing in use above-mentioned defective of active-matrix liquid crystal display of the prior art, the invention provides active-matrix liquid crystal display a kind of novelty, that can reduce the Source drive usage quantity, so that reduce the cost of product.
According to one aspect of the present invention, a kind of active-matrix liquid crystal display is provided, comprise a plurality of pixels, each pixel comprises three subpixels, wherein, each sub-pixel comprises:
One main viewing area is electrically coupled to one first sweep trace and one first data line;
One first sub-viewing area is electrically coupled to the pairing three scan line in main viewing area and one second data line of next son pixel; And
One second sub-viewing area is electrically coupled to one second sweep trace and a predeterminated voltage,
Wherein, Said first sweep trace, second sweep trace and three scan line along continuous straight runs are provided with; Said first data line and second data line vertically are provided with, and the regional potential difference between the first sub-viewing area and the second sub-viewing area is realized by said second sweep trace in the said first sub-viewing area and the said second sub-viewing area.
Among the embodiment therein, in each pixel, have at least three data lines to be parallel to each other and not adjacent, simultaneously, have at least two data lines to be parallel to each other and adjacent with other data lines.
Among the embodiment therein, charge by said first sweep trace and said first data line in main viewing area, charges by said three scan line and said second data line in the said first sub-viewing area.Further, charge by said three scan line and said first data line in the main viewing area of next son pixel.
Among the embodiment therein, this predeterminated voltage is a ground voltage.
Among the embodiment therein, active liquid crystal display switches between two dimensional mode (2D) and polarization type 3-D display pattern (3D pattern retarder).When active liquid crystal display worked in two dimensional mode, main viewing area, the first sub-viewing area and the second sub-viewing area regional current potential separately were all inequality.When active liquid crystal display works in polarization type 3-D display pattern, write zero GTG signal by first data line to main viewing area, to close said main viewing area.
Among the embodiment therein, the active-matrix liquid crystal display is a Thin Film Transistor-LCD.Further, main viewing area, the first sub-viewing area and the second sub-viewing area include a thin film transistor (TFT), open and close the regional current potential of regulating separately by this thin film transistor (TFT).
Adopt active-matrix liquid crystal display of the present invention; Each sub-pixel in each pixel is divided into three viewing areas; Promptly; Main viewing area, the first sub-viewing area and the second sub-viewing area; This first sub-viewing area is electrically coupled to the pairing three scan line in main viewing area and second data line of adjacent subpixels, and this second sub-viewing area is electrically coupled to second sweep trace and a predeterminated voltage, thereby utilizes the three scan line and second sweep trace to control the current potential in zone separately.Meanwhile; The present invention is when solving the colour cast problem; The one scan line of each sub-pixel can charge simultaneously main viewing area of himself and the first sub-viewing area of adjacent subpixels; Thereby can reach the identical effect of 2D2G framework, and can save the usage quantity of Source drive, reduced the design cost of product.In addition, active-matrix liquid crystal display of the present invention can write zero GTG signal to main viewing area, increases the vertical angle of view of equipment by closing main viewing area.
Description of drawings
The reader with reference to advantages after the embodiment of the present invention, will become apparent various aspects of the present invention.Wherein,
The pixel structure synoptic diagram that Fig. 1 illustrates active-matrix liquid crystal display of the prior art when adopting the 2D2G mode to solve colour cast; And
Pixel structure synoptic diagram when Fig. 2 illustrates according to the active-matrix liquid crystal display solution colour cast of an embodiment of the present invention.
Embodiment
For technology contents that the application is disclosed is more detailed and complete, can be with reference to accompanying drawing and following various specific embodiments of the present invention, identical mark is represented same or analogous assembly in the accompanying drawing.Yet the embodiment that those of ordinary skill in the art should be appreciated that hereinafter to be provided is used for limiting the scope that the present invention is contained.In addition, accompanying drawing only is used for schematically explaining, does not draw according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is done further to describe in detail.
The pixel structure synoptic diagram that Fig. 1 illustrates active-matrix liquid crystal display of the prior art when adopting the 2D2G mode to solve colour cast.
With reference to Fig. 1, this active-matrix liquid crystal display comprises a plurality of pixels, and each pixel has three subpixels, such as Red sub-pixel 10, Green sub-pixel 12 and Blue sub-pixel 14.
With Red sub-pixel 10 is example, and it comprises a main viewing area 101 and a sub-viewing area.This sub-viewing area is divided into one first sub-viewing area 103 and one second sub-viewing area 105 again.More specifically, charge by sweep trace G1 on the horizontal direction and the data line D2 on the vertical direction in main viewing area 101.Charge by sweep trace G1 on the horizontal direction and the data line D1 on the vertical direction in the first sub-viewing area 103.And opening and closing of control TFT come by sweep trace G2 in the second sub-viewing area 105, and then controls the regional potential difference between the first sub-viewing area 103 and the second sub-viewing area 105.
Similarly, the main viewing area in the Green sub-pixel 12, the first sub-viewing area and the second sub-viewing area are coupled to data line D3 and D4 respectively, and their sweep trace connected mode and Red sub-pixels 10 separately are identical.Main viewing area in the Blue sub-pixel 14, the first sub-viewing area and the second sub-viewing area are coupled to data line D6 and D5 respectively, and their sweep trace connected modes separately are also identical with Red sub-pixel 10.
Can know by above-mentioned Fig. 1; Each sub-pixel all must adopt two data lines (data line) independently to carry out the charging operations of corresponding viewing area; Thus, not only can reduce pixel aperture ratio, and data line too much also will increase the IC cost of Source drive (source driver).
In order to address the aforementioned drawbacks or deficiency the pixel structure synoptic diagram when Fig. 2 illustrates according to the active-matrix liquid crystal display solution colour cast of an embodiment of the present invention.
With reference to Fig. 2, active-matrix liquid crystal display of the present invention comprises a plurality of pixels, and each pixel comprises three subpixels, such as Red sub-pixel 20, Green sub-pixel 22 and Blue sub-pixel 24.
Being similar to Fig. 1, is example with the Red sub-pixel, and it comprises a main viewing area 201 and a sub-viewing area.This sub-viewing area is divided into one first sub-viewing area 203 and one second sub-viewing area 205 again.Main viewing area 203 is electrically coupled to one first sweep trace G1 and one first data line D2.The first sub-viewing area 203 is electrically coupled to the pairing three scan line G2 in main viewing area and the one second data line D1 of next son pixel.The second sub-viewing area 205 is electrically coupled to one second a sweep trace G3 and a predeterminated voltage.Wherein, The first sweep trace G1, the second sweep trace G3 and three scan line G2 along continuous straight runs are provided with; The first data line D2 and the second data line D 1 vertically are provided with, and the regional potential difference between the first sub-viewing area 203 and the second sub-viewing area 205 is realized by the second sweep trace G3 in the first sub-viewing area 203 and the second sub-viewing area 205.
In Green sub-pixel 22, main viewing area (corresponding to the main viewing area 201 in the Red sub-pixel 20) is electrically coupled to one first a sweep trace G1 and a data line D3.The first sub-viewing area (corresponding to the first sub-viewing area 203 in the Red sub-pixel 20) is electrically coupled to a sweep trace G1 and a data line D4.The second sub-viewing area (corresponding to the second sub-viewing area 205 in the Red sub-pixel 20) is electrically coupled to an one scan line G3 and a predeterminated voltage.In Blue sub-pixel 24, main viewing area (corresponding to the main viewing area 201 in the Red sub-pixel 20) is electrically coupled to one first a sweep trace G1 and a data line D5.The first sub-viewing area (corresponding to the first sub-viewing area 203 in the Red sub-pixel 20) is electrically coupled to a sweep trace G2 and a data line D4.The second sub-viewing area (corresponding to the second sub-viewing area 205 in the Red sub-pixel 20) is electrically coupled to an one scan line G3 and a predeterminated voltage.For example, this predeterminated voltage is a ground voltage.
Can know by above-mentioned explanation; In single pixel (comprising Red sub-pixel, Green sub-pixel and Blue sub-pixel); Data line D4 both had been electrically coupled to the first sub-viewing area of Green sub-pixel 22, also was electrically coupled to the first sub-viewing area of Blue sub-pixel 24.For example, in Fig. 2, in the pixel structure of 12 sweep traces and 12 data lines, data line D4 can be coupled by the main viewing area of two adjacent subpixels or the first sub-viewing area respectively, thereby can save the consumption of Source drive (source driver).
In one embodiment, in each pixel, have at least three data lines to be parallel to each other and not adjacent, simultaneously, have at least two data lines to be parallel to each other and adjacent with other data lines.For example, in Fig. 2, in the pixel that is made up of Red sub-pixel 20, Green sub-pixel 22 and Blue sub-pixel 24, data line D1, D4 and D5 are parallel to each other and are not adjacent with other data lines, and data line D2 and D3 are parallel to each other and are adjacent.
In one embodiment, charge by the first sweep trace G1 and the first data line D2 in main viewing area 201, charges by the three scan line G2 and the second data line D1 in the first sub-viewing area 201.In addition, charge by the three scan line G2 and the first data line D1 in the main viewing area of next son pixel.That is sweep trace G2 controls a plurality of sub-pixels main viewing area separately in the delegation simultaneously, and half sub-pixel first sub-viewing area separately of all sub-pixels in another row.
In one embodiment, this active liquid crystal display switches between two dimensional mode (2D) and polarization type 3-D display pattern (3D pattern retarder).Specifically, when it worked in two dimensional mode, 201, the first sub-viewing area 203, main viewing area and the second sub-viewing area 205 regional current potential separately were all inequality.For example, control the first sub-viewing area 203 and the second sub-viewing area 205 regional current potential separately through sweep trace G2 and G3 and data line D1.When it worked in polarization type 3-D display pattern, this equipment write zero GTG signal by the first data line D2 to main viewing area 201, closing this main viewing area 201, and then promoted the vertical angle of view of product.
In one embodiment, this active-matrix liquid crystal display is a Thin Film Transistor-LCD (TFT-LCD).For example, 201, the first sub-viewing area 203, main viewing area and the second sub-viewing area 205 include a thin film transistor (TFT), and the control band current potential is opened and closed in these viewing areas by thin film transistor (TFT) separately.
Adopt active-matrix liquid crystal display of the present invention; Each sub-pixel in each pixel is divided into three viewing areas; This first sub-viewing area is coupled to the pairing three scan line in main viewing area and second data line of adjacent subpixels; This second sub-viewing area is coupled to second sweep trace and a predeterminated voltage, thereby utilizes the three scan line and second sweep trace to control the current potential in zone separately.Meanwhile; The present invention is when solving the colour cast problem; The one scan line of each sub-pixel can charge simultaneously main viewing area of himself and the first sub-viewing area of adjacent subpixels; Thereby can reach the identical effect of 2D2G framework, and can save the usage quantity of Source drive, reduced the design cost of product.In addition, active-matrix liquid crystal display of the present invention can write zero GTG signal to main viewing area, increases the vertical angle of view of equipment by closing main viewing area.
In the preceding text, illustrate and describe embodiment of the present invention.But those skilled in the art can understand, and under situation without departing from the spirit and scope of the present invention, can also specific embodiments of the invention do various changes and replacement.These changes and replacement all drop in claims of the present invention institute restricted portion.
Claims (10)
1. an active-matrix liquid crystal display comprises a plurality of pixels, and each pixel comprises three subpixels, it is characterized in that, each sub-pixel comprises:
One main viewing area is electrically coupled to one first sweep trace and one first data line;
One first sub-viewing area is electrically coupled to the pairing three scan line in main viewing area and one second data line of next son pixel; And
One second sub-viewing area is electrically coupled to one second sweep trace and a predeterminated voltage,
Wherein, Said first sweep trace, second sweep trace and three scan line along continuous straight runs are provided with; Said first data line and second data line vertically are provided with, and the regional potential difference between the first sub-viewing area and the second sub-viewing area is realized by said second sweep trace in the said first sub-viewing area and the said second sub-viewing area.
2. active-matrix liquid crystal display according to claim 1 is characterized in that, in each pixel, has at least three data lines to be parallel to each other and not adjacent with other data lines, simultaneously, has at least two data lines to be parallel to each other and adjacent.
3. active-matrix liquid crystal display according to claim 1; It is characterized in that; Charging by said first sweep trace and said first data line in said main viewing area, charges by said three scan line and said second data line in the said first sub-viewing area.
4. active-matrix liquid crystal display according to claim 3 is characterized in that, charges by said three scan line and said first data line in the main viewing area of said next son pixel.
5. active-matrix liquid crystal display according to claim 1 is characterized in that, said predeterminated voltage is a ground voltage.
6. active-matrix liquid crystal display according to claim 1 is characterized in that, said active liquid crystal display switches between two dimensional mode (2D) and polarization type 3-D display pattern (3D pattern retarder).
7. active-matrix liquid crystal display according to claim 6; It is characterized in that; When said active liquid crystal display worked in two dimensional mode, said main viewing area, the first sub-viewing area and the second sub-viewing area regional current potential separately were all inequality.
8. active-matrix liquid crystal display according to claim 6; It is characterized in that; When said active liquid crystal display works in polarization type 3-D display pattern, write zero GTG signal by said first data line to said main viewing area, to close said main viewing area.
9. active-matrix liquid crystal display according to claim 1 is characterized in that, said active-matrix liquid crystal display is a Thin Film Transistor-LCD.
10. active-matrix liquid crystal display according to claim 9; It is characterized in that; Said main viewing area, the first sub-viewing area and the second sub-viewing area include a thin film transistor (TFT), open and close the regional current potential of regulating separately by said thin film transistor (TFT).
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CN103439809A (en) * | 2013-05-08 | 2013-12-11 | 友达光电股份有限公司 | Display panel and its driving method |
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US10156758B2 (en) | 2014-12-18 | 2018-12-18 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display |
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CN107515499A (en) * | 2017-09-20 | 2017-12-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel |
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CN107564490A (en) * | 2017-10-25 | 2018-01-09 | 惠科股份有限公司 | The driving method and display device of a kind of display device |
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