CN101419372B

CN101419372B - LCD and liquid crystal display board thereof

Info

Publication number: CN101419372B
Application number: CN2008101784839A
Authority: CN
Inventors: 陈耿铭; 洪集茂; 吕昭良
Original assignee: AU Optronics Corp
Current assignee: Samsung Display Co Ltd
Priority date: 2008-12-01
Filing date: 2008-12-01
Publication date: 2012-06-27
Anticipated expiration: 2028-12-01
Also published as: CN101419372A

Abstract

The invention discloses a liquid crystal display and a liquid crystal display panel thereof. The pixel array structure of the liquid crystal display panel provided by the present invention is a half-source drive structure, and by ingeniously arranging the coupling relationship between each pixel and each data line, the liquid crystal display panel provided by the present invention can be used in line inversion The display effect of dot inversion can be achieved under the drive mode of rotation. In this way, the power consumed by the source driver can be greatly reduced.

Description

LCD and display panels thereof

Technical field

The present invention relates to a kind of plane display technique, and to relate in particular to a kind of be under half source drive (HSD) framework at picture element array structure, reduce the LCD and the display panels thereof of the consumed power of source electrode driver.

Background technology

In the middle of the pel array of display panels (pixel array) structure now, there is one type to be called as half source drive (half source driving is designated hereinafter simply as HSD) framework.The HSD framework is borrowing the number with sweep trace to double can be so that the number of data line reduces by half, and since the number of data line reduce by half, so the price of source electrode driver (source driver) also can relatively reduce.Generally speaking, because the type of drive of the display panels of HSD framework must adopt a counter-rotating (dot inversion), so after having write the video data of a row pixel, the driving polarity of every online data just must be changed once at every turn.Therefore, source electrode driver can consume sizable power.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of LCD and display panels thereof; Its picture element array structure is the HSD framework; And type of drive can adopt the display effect of going counter-rotating (column inversion) and reaching a counter-rotating, reaches whereby to reduce the power that source electrode driver consumed.

For realizing above-mentioned purpose, the present invention provides a kind of display panels, and the type of drive of this display panels adopts the row counter-rotating, and it comprises multi-strip scanning line, many data lines, and a plurality of pixel of arranging with matrix-style.The number of these sweep traces is an even number, and the number of these data lines is an odd number.I bar sweep trace couples (4j+1) individual and (4j+2) individual pixel of i row pixel, and wherein i is the odd number positive integer, and j is more than or equal to 0 positive integer.(i+1) bar sweep trace couples (4j+3) individual and (4j+4) individual pixel of i row pixel.I pixel and (4r+2) row that (2r+1) bar data line couples (4r+1) row and (4r+3) row pixel and (4r+4) go k pixel of pixel, and wherein r is the positive integer more than or equal to 0, and k is the even number positive integer.I pixel and (4r+3) row that (2r+2) bar data line couples (4r+2) row and (4r+4) row pixel and (4r+5) go k pixel of pixel.

The present invention provides a kind of LCD with display panels that the invention described above provides in addition.

The picture element array structure of display panels provided by the present invention is the HSD framework; And, thereby make display panels provided by the present invention can be issued to the display effect of a counter-rotating in the type of drive that adopts the row counter-rotating through the relation that couples between each pixel of ingenious arrangement and each data line.The power that thus, can reduce source electrode driver significantly and consumed.

Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.

Description of drawings

Fig. 1 illustrates the system block diagrams into the LCD of one embodiment of the invention;

The part that Fig. 2 illustrates to the LCD of one embodiment of the invention drives sequential chart.

Fig. 3 and Fig. 4 illustrate the system block diagrams into the LCD of another embodiment of the present invention respectively.

Wherein, Reference numeral:

100: LCD

101,101 ': display panels

103: left gate drivers

105: right gate drivers

107: source electrode driver

109: time schedule controller

111: backlight module

G1～G7: sweep trace

S1～S7, S1 '～S7 ': data line

Pix: pixel

AA: viewing area

CKL, VSTL, XCKL, CKR, VSTR, XCKR, LD, POL: control signal

OP_data: video data

Embodiment

It is under half source drive (HSD) framework at picture element array structure that the present invention provides a kind of, reduces the LCD and the display panels thereof of the consumed power of source electrode driver.Following content will encyclopaedize to those skilled in the relevant art of the present invention to technological means of the present invention and effect and consider and examine.In addition, all possibility parts use assembly/member of same numeral to represent identical or similar portions in accompanying drawing and embodiment.

Fig. 1 illustrates the system block diagrams into the LCD 100 of one embodiment of the invention.Please with reference to Fig. 1; LCD 100 comprises display panels 101, left gate drivers 103, right gate drivers 105, source electrode driver 107, time schedule controller 109, and in order to the backlight module 111 of the required backlight of display panels 101 to be provided.Wherein, Have multi-strip scanning line G1～G7 in the display panels 101 and (show 7 sweep traces among Fig. 1; But not as restriction), many data line S1～S7 (show 7 data lines among Fig. 1; But not as restriction), and a plurality of pixel Pix (being not restriction with the number of pixels that is illustrated among Fig. 1) that forms that arranges with matrix-style.

In present embodiment, i bar sweep trace couples (4j+1) individual and (4j+2) individual pixel of i row pixel, and wherein i is the odd number positive integer, and j is more than or equal to 0 positive integer.(i+1) bar sweep trace couples (4j+3) individual and (4j+4) individual pixel of i row pixel.I pixel and (4r+2) row that (2r+1) bar data line couples (4r+1) row and (4r+3) row pixel and (4r+4) go k pixel of pixel, and wherein r is the positive integer more than or equal to 0, and k is the even number positive integer.I pixel and (4r+3) row that (2r+2) bar data line couples (4r+2) row and (4r+4) row pixel and (4r+5) go k pixel of pixel.

What deserves to be mentioned is earlier at this; The number of all sweep traces in the display panels 101 is necessary for even number; And the number of all data lines in the display panels 101 is necessary for odd number; And a plurality of (4r+1) that arrange with array way in the pixel that forms in the display panels 101 go pixel not in the AA of the viewing area of display panels 101, and it mainly is the usefulness in order to balanced load.

The pixel array architecture of the display panels 101 that from Fig. 1, is disclosed should find out to be that (so the number of sweep trace can double, and the number of data line can reduce by half half source drive for halfsource driving, HSD) framework easily.Also because of so, because the number of data line reduces by half, so the price of source electrode driver 107 also can relatively reduce.

In addition; Because the number of sweep trace can double; So the left gate drivers 103 and the right gate drivers 105 of present embodiment can directly be formulated on the glass substrate (glass substrate) of display panels 101; And use the mode of bilateral driven sweep line, to reduce the cost of manufacture of gate drivers effectively.

In present embodiment; Left side gate drivers 103 can be configured in the side on the glass substrate of display panels 101; And couple display panels 101, provide first sweep signal to all the odd number bar sweep traces in all sweep traces in the display panels 101 in order to sequence.Wherein, the running of left gate drivers 103 can be controlled by control signal CKL, VSTL, the XCKL that time schedule controller 109 is provided.

Right gate drivers 105 can be configured in the opposite side on the glass substrate of display panels 101, and couples display panels 101, provides second sweep signal to all the even number bar sweep traces in all sweep traces in the display panels 101 in order to sequence.Wherein, the running of right gate drivers 105 can be controlled by control signal CKR, VSTR, the XCKR that time schedule controller 109 is provided.

Source electrode driver 109 couples display panels 101, and is controlled by control signal LD, POL that time schedule controller 109 is provided at least, and provides the video data (OP_data) of correspondence last to each data line S1～S7.Thus, each the row pixel in the display panels 101 will distinctly see through corresponding data line S1～S7 to receive corresponding video data.

For the operation principles of LCD 100 will more clearly be described, the part that Fig. 2 illustrates to the LCD 100 of one embodiment of the invention drives sequential chart.Please merge with reference to Fig. 1 and Fig. 2; Should find out easily from the drive waveforms figure that Fig. 2 disclosed; Left side gate drivers 103 can distinctly be controlled by control signal CKL, VSTL, XCKL and CKR, VSTR, the XCKR that time schedule controller 109 is provided with right gate drivers 105, provides sweep signal to display panels 101 interior corresponding scanning line G1～G7 last and intersect to cooperate with sequence.

In addition, source electrode driver 109 is controlled by control signal LD, the POL that time schedule controller 109 is provided to I haven't seen you for ages, and provides corresponding video data OP_data last to each data line S1～S7.Thus, each the row pixel in the display panels 101 will distinctly see through corresponding data line S1～S7 to receive and to write corresponding video data.

Though the pixel array architecture of the display panels 101 of present embodiment is the HSD framework; But from the drive waveforms figure that Fig. 2 disclosed, can find out in order to the control signal POL that determines the driving polarity that every data line S1～S7 is last only can be during a picture of LCD 100 (frame) conversion once; The display panels that so will be different from traditional HSD framework adopts when putting the type of drive of reversing; Behind the video data of at every turn having write a row pixel, the driving polarity of every online data just must be changed the shortcoming of the too much power of source electrode driver consumption that is once brought.Thus; The type of drive of the display panels 101 of present embodiment can be under the condition that adopts row counter-rotating (column inversion) and reach the display effect of a counter-rotating, thereby the power that makes source electrode driver 107 consumed can be reduced significantly.

Fig. 3 and Fig. 4 illustrate respectively and are LCD 300 of another embodiment of the present invention and 400 system block diagrams.Please merge with reference to Fig. 1, Fig. 3 and Fig. 4; Basically; LCD 300,400 is identical in fact with LCD 100; And difference is to be: the cabling mode of each data line S1～S7 on display panels 101 of LCD 100 is annular cabling; And the cabling mode of each data line S1 '～S7 ' on display panels 101 ' of LCD 300 and 400 is the terminal cabling, but LCD 300 and 400 in fact also can reach the technological effect similar with LCD 100.

In sum; The picture element array structure of display panels provided by the present invention is the HSD framework; And, thereby make display panels provided by the present invention can be issued to the display effect of a counter-rotating in the type of drive that adopts the row counter-rotating through the relation that couples between each pixel of ingenious arrangement and each data line.The power that thus, can reduce source electrode driver significantly and consumed.

Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims

1. A liquid crystal display panel, characterized in that, the driving mode of the liquid crystal display panel adopts row inversion, which comprises:

A plurality of scanning lines, the number of these scanning lines is an even number;

a plurality of data lines, the number of which is an odd number; and

A plurality of pixels arranged in a matrix;

Wherein, the i-th scanning line is coupled to the (4j+1)th and (4j+2)th pixels of the i-th column of pixels, i is an odd positive integer, and j is a positive integer greater than or equal to 0;

The (i+1)th scan line is coupled to the (4j+3)th and (4j+4)th pixels of the i-th column of pixels;

The (2r+1)th data line is coupled to the i-th pixel of the (4r+1)th row and the (4r+3)th row of pixels and the (4r+2)th row and (4r+4)th row of pixels For the kth pixel, r is a positive integer greater than or equal to 0, and k is an even positive integer; and

The (2r+2)th data line is coupled to the i-th pixel of the (4r+2)th row and the (4r+4)th row of pixels and the (4r+3)th row and (4r+5)th row of pixels the kth pixel.

2 . The liquid crystal display panel according to claim 1 , wherein all the odd-numbered scan lines in the scan lines are used to sequentially receive a first scan signal.

3 . The liquid crystal display panel according to claim 2 , wherein all the even-numbered scan lines in the scan lines are used to receive a second scan signal in sequence. 4 .

4. The liquid crystal display panel according to claim 1, wherein the pixels in the (4r+1)th row of the pixels are not in the display area of the liquid crystal display panel.

5. A liquid crystal display, characterized in that, comprising:

A liquid crystal line panel, the driving method of the liquid crystal display panel adopts line inversion, which includes:

a plurality of data lines, the number of which is an odd number; and

A plurality of pixels arranged in a matrix;

6 . The liquid crystal display according to claim 5 , wherein all odd-numbered scan lines in the scan lines are used to sequentially receive a first scan signal.

7. The liquid crystal display according to claim 6, further comprising:

A first gate driver is disposed on one side of the liquid crystal display panel and coupled to the liquid crystal display panel for sequentially providing the first scanning signal.

8 . The liquid crystal display according to claim 7 , wherein all the even-numbered scanning lines in the scanning lines are used to receive a second scanning signal in sequence.

9. The liquid crystal display according to claim 8, further comprising:

A second gate driver is disposed on the other side of the liquid crystal display panel and coupled to the liquid crystal display panel for sequentially providing the second scanning signal.

10 . The liquid crystal display according to claim 9 , wherein each row of pixels in the liquid crystal display panel receives a display data correspondingly through the data lines. 11 .

11. The liquid crystal display according to claim 10, wherein a driving polarity of the display data received by each row of pixels in the liquid crystal display panel is switched once during a frame period of the liquid crystal display.

12. The liquid crystal display according to claim 10, further comprising:

A source driver, coupled to the liquid crystal display panel, is used to provide the display data to the data lines correspondingly.

13. The liquid crystal display according to claim 12, further comprising:

A timing controller is coupled to and controls the operation of the first gate driver, the second gate driver and the source driver.

14. The liquid crystal display according to claim 5, further comprising:

A backlight module is used to provide the surface light source required by the liquid crystal display panel.

15. The liquid crystal display according to claim 5, wherein the pixels in the (4r+1)th row of the pixels are not in the display area of the liquid crystal display panel.