CN109634012B - Display panel - Google Patents
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- CN109634012B CN109634012B CN201910075939.7A CN201910075939A CN109634012B CN 109634012 B CN109634012 B CN 109634012B CN 201910075939 A CN201910075939 A CN 201910075939A CN 109634012 B CN109634012 B CN 109634012B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
Abstract
The invention provides a display panel. The display panel comprises a plurality of scanning lines extending along the horizontal direction, a plurality of data lines extending along the vertical direction and a plurality of sub-pixels arranged in an array mode, wherein each scanning line is connected with a row of sub-pixels, every two data lines are respectively connected with odd-numbered rows of sub-pixels and even-numbered rows of sub-pixels in a column of sub-pixels, each sub-pixel comprises a pixel electrode, each pixel electrode comprises a main electrode which divides each sub-pixel into a plurality of domains, the main electrodes of the sub-pixels are overlapped with the data lines connected with the sub-pixels, the main electrodes and dark fringes at the periphery of the main electrodes are covered by lighttight data lines, loss of light transmission amount is greatly reduced, and penetration rate is effectively improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel.
Background
Thin Film Transistors (TFTs) are the main driving elements in current Liquid Crystal Displays (LCDs) and Active Matrix Organic electroluminescent displays (AMOLEDs), and are directly related to the Display performance of flat panel displays.
Most of the existing liquid crystal displays in the market are backlight liquid crystal displays (lcds), which include a liquid crystal display panel and a backlight module (backlight module). The liquid crystal display panel operates on the principle that liquid crystal molecules are poured between a Thin Film Transistor Array Substrate (TFT Array Substrate) and a Color Filter (CF) Substrate, pixel voltage and common voltage are applied to the two substrates, and the rotation direction of the liquid crystal molecules is controlled by an electric field formed between the pixel voltage and the common voltage, so that light of a backlight module is transmitted out to generate a picture. The liquid crystal display panel forming process generally includes: front Array (Array) process (thin film, yellow light, etching and stripping), middle Cell (TFT substrate and CF substrate) process and back module assembly process (driver IC and printed circuit board pressing). Wherein, the front-stage Array process mainly forms a TFT substrate to control the movement of liquid crystal molecules; the middle Cell process is mainly to add liquid crystal between the TFT substrate and the CF substrate; the back module assembly process mainly drives the integration of IC pressing and printed circuit board, and further drives the liquid crystal molecules to rotate and display images.
With the overall popularization of large-size displays, the HVA (High Vertical Alignment) technology with 8-domain pixel electrode design is widely applied by virtue of its excellent viewing angle performance, but since the pixel electrode introduces a stem (trunk) with a Vertical center, its transmittance is significantly reduced, and although the 4-domain pixel electrode design adopted to improve the transmittance achieves the improvement of the transmittance, it is difficult to consider the excellent viewing angle performance of the original 8-domain pixel electrode, thereby presenting the poor problems of viewing angle asymmetry and color cast.
As shown in fig. 1, the electric field deflection directions at two sides of a vertical trunk in the existing 8domain pixel electrode design run along the slits (slit) of the electrode branches, so that the liquid crystal on or around the trunk is disorderly inverted, the liquid crystal efficiency is greatly reduced, a large number of dark fringes appear on the trunk and around the trunk, and the transmittance is directly reduced. Furthermore, in the existing HG2D pixel architecture, the opaque data line (data line) sacrifices a lot of penetration rate.
Disclosure of Invention
The invention aims to provide a display panel, which can enable lighttight data lines to cover a main electrode and dark fringes at the periphery of the main electrode, greatly reduce the loss of light transmission capacity and effectively improve the penetration rate.
To achieve the above object, the present invention provides a display panel including: the pixel array comprises a plurality of scanning lines extending along the horizontal direction, a plurality of data lines extending along the vertical direction and a plurality of sub-pixels arranged in an array;
each scanning line is connected with a row of sub-pixels; every two data lines are respectively connected with odd-row sub-pixels and even-row sub-pixels in a column of sub-pixels;
the sub-pixel comprises a pixel electrode; the pixel electrode includes a trunk electrode dividing the sub-pixel into a plurality of domains;
the main electrode of the sub-pixel overlaps with the data line connected to the sub-pixel.
The pixel electrode also comprises a plurality of electrode branches which are arranged in each domain and extend from the main electrode along different directions; the electrode branches in one domain are parallel to each other and spaced from each other, and the extending directions of the electrode branches in two adjacent domains are different.
The electrode branches in each domain extend in directions at angles of 45 °, 135 °, -135 °, and-45 ° to the horizontal direction, respectively.
The main electrode divides the sub-pixels into 8 domains.
The sub-pixels comprise main sub-pixels and sub-pixels which are distributed at intervals along the vertical direction; the main electrode comprises a first main electrode positioned in the main sub-pixel and a second main electrode positioned in the sub-pixel; the first main electrode divides the main sub-pixel into 4 domains, and the second main electrode divides the sub-pixel into 4 domains.
The sub-pixel further comprises a first thin film transistor connected with the electrode branch in the main sub-pixel and a second thin film transistor connected with the electrode branch in the sub-pixel; the data line is connected with the first thin film transistor and the second thin film transistor, and the scanning line is connected with the first thin film transistor and the second thin film transistor.
The first thin film transistor and the second thin film transistor are both located between the main sub-pixel and the sub-pixel.
The first main electrode comprises a first horizontal electrode extending along the horizontal direction and a first vertical electrode extending along the vertical direction and vertically intersected with the first horizontal electrode; the second main electrode comprises a second horizontal electrode extending along the horizontal direction and a second vertical electrode extending along the vertical direction and vertically intersected with the second horizontal electrode;
the first vertical electrode and the second vertical electrode are overlapped with a data line connected with the sub-pixel.
The first vertical electrode and the second vertical electrode are both positioned on one side of the sub-pixel.
And in the adjacent three sub-pixels positioned on the same row, the first vertical electrode and the second vertical electrode of the middle sub-pixel are close to the first vertical electrode and the second vertical electrode of one sub-pixel adjacent to the middle sub-pixel and are far away from the first vertical electrode and the second vertical electrode of the other sub-pixel adjacent to the middle sub-pixel.
The invention has the beneficial effects that: the display panel comprises a plurality of scanning lines extending along the horizontal direction, a plurality of data lines extending along the vertical direction and a plurality of sub-pixels arranged in an array; each scanning line is connected with a row of sub-pixels; every two data lines are respectively connected with odd-row sub-pixels and even-row sub-pixels in a column of sub-pixels; the sub-pixel comprises a pixel electrode; the pixel electrode includes a trunk electrode dividing the sub-pixel into a plurality of domains; the main electrode of the sub-pixel is overlapped with the data line connected with the sub-pixel, so that the lightproof data line covers the main electrode and dark fringes at the periphery of the main electrode, the loss of light transmission is greatly reduced, and the penetration rate is effectively improved.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic diagram illustrating a transmittance reduction of a conventional display panel;
FIG. 2 is a schematic diagram of a display panel according to the present invention;
FIG. 3 is a schematic structural diagram of a sub-pixel of a display panel according to the present invention;
FIG. 4 is a schematic diagram of the transmittance improvement of the display panel according to the present invention;
fig. 5 is a schematic layout diagram of three adjacent sub-pixels of the display panel of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 2 to 5, the present invention provides a display panel, including: a plurality of scan lines 10 extending in a horizontal direction, a plurality of data lines 20 extending in a vertical direction, and a plurality of subpixels 30 arranged in an array;
each scanning line 10 connects a row of sub-pixels 30; every two data lines 20 are respectively connected with the odd-row sub-pixels 30 and the even-row sub-pixels 30 in one column of sub-pixels 30;
the sub-pixel 30 includes a pixel electrode 301; the pixel electrode 301 includes a main electrode 302 dividing the sub-pixel 30 into a plurality of domains;
the main electrode 302 of the sub-pixel 30 overlaps the data line 20 connected to the sub-pixel 30.
It should be noted that the display panel of the present invention has HG2D pixel architecture, that is, each scan line 10 is connected to a row of sub-pixels 30; as shown in fig. 3 and 4, the two data lines 20 pass through the two data lines 20 in the pixel electrode 301 of the sub-pixel 30, the data lines 20 are opaque due to the metal material, the data lines 20 sacrifice a large amount of transmittance, and the electric field deflection directions on both sides of the main electrode 302 of the pixel electrode 301 run along the slits of the plurality of electrode branches 303, which causes the main electrode 302 itself and the liquid crystal around the main electrode 302 to be disorderly inverted, which causes a large amount of dark fringes on the main electrode 302 and its periphery, resulting in a decrease in transmittance, in the present invention, the main electrode 302 of the sub-pixel 30 and the data line 20 connected to the sub-pixel 30 are overlapped, so that the opaque data line 20 covers the main electrode 302 and its peripheral dark fringes, and two phenomena of decreasing transmittance are reduced to one, the loss of light transmission amount is greatly reduced, and the penetration rate is effectively improved.
Specifically, the pixel electrode 301 further includes a plurality of electrode branches 303 disposed in each domain and extending from the main electrode 302 in different directions; the plurality of electrode branches 303 in one domain are parallel to and spaced apart from each other, and the extending directions of the electrode branches 303 in two adjacent domains are different.
Specifically, the electrode branches 303 in each domain extend in directions at angles of 45 °, 135 °, -135 °, and-45 ° to the horizontal direction, respectively.
Specifically, the main electrode 302 divides the sub-pixel 30 into 8 domains.
Specifically, the sub-pixels 30 include a main sub-pixel 31 and a sub-pixel 32 which are distributed at intervals in the vertical direction; the main electrode 302 comprises a first main electrode 3021 in the main sub-pixel 31 and a second main electrode 3022 in the sub-pixel 32; the first trunk electrode 3021 divides the main sub-pixel 31 into 4 domains, and the second trunk electrode 3022 divides the sub-pixel 32 into 4 domains, thereby dividing the sub-pixel 30 into 8 domains.
Specifically, the sub-pixel 30 further includes a first thin film transistor 33 connected to the electrode branch 303 in the main sub-pixel 31 and a second thin film transistor 34 connected to the electrode branch 303 in the sub-pixel 32; the data line 20 is connected to the first thin film transistor 33 and the second thin film transistor 34, and the scan line 10 is connected to the first thin film transistor 33 and the second thin film transistor 34.
Further, the first thin film transistor 33 and the second thin film transistor 34 are both located between the main sub-pixel 31 and the sub-pixel 32.
Further, the first trunk electrode 3021 includes a first horizontal electrode 30211 extending in a horizontal direction and a first vertical electrode 30212 extending in a vertical direction and perpendicularly intersecting the first horizontal electrode 30211; the second trunk electrode 3022 includes a second horizontal electrode 30221 extending in the horizontal direction and a second vertical electrode 30222 extending in the vertical direction and perpendicularly intersecting the second horizontal electrode 30221;
the first and second vertical electrodes 30212 and 30222 each overlap the data line 20 connected to the sub-pixel 30.
In addition, normally, two data lines 20 passing through the pixel electrode 301 of the sub-pixel 30 are respectively located at two sides of the pixel electrode 301, and the first vertical electrode 30212 and the second vertical electrode 30222 originally located at the center of the pixel electrode 301 are laterally moved by a predetermined first distance (for example, 25um) in the direction of the data line 20, and then the data line 20 is laterally moved by a predetermined second distance (for example, 9um) in the direction of the first vertical electrode 30212 and the second vertical electrode 30222, so that both the first vertical electrode 30212 and the second vertical electrode 30222 are overlapped with the data line 20 connected to the sub-pixel 30. That is, the first vertical electrode 30212 and the second vertical electrode 30222 are no longer located at the center of the pixel electrode 301 but located at one side of the pixel electrode 301, that is, the first vertical electrode 30212 and the second vertical electrode 30222 are both located at one side of the sub-pixel 30.
Specifically, referring to fig. 5, in order to avoid the large viewing angle loss and color shift phenomenon caused by the side-shifting design of the first vertical electrode 30212 and the second vertical electrode 30222, the first vertical electrode 30212 and the second vertical electrode 30222 in two adjacent sub-pixels 30 in a row of sub-pixels 30 are shifted to different sides. For example, the first vertical electrode 30212 and the second vertical electrode 30222 in one sub-pixel 30 are shifted toward the left side, and the first vertical electrode 30212 and the second vertical electrode 30222 in one sub-pixel 30 are shifted toward the right side.
That is, in the adjacent three sub-pixels 30 located in the same row, the first and second vertical electrodes 30212 and 30222 of the sub-pixel 30 located in the middle are close to the first and second vertical electrodes 30212 and 30222 of one sub-pixel 30 adjacent thereto and are far from the first and second vertical electrodes 30212 and 30222 of another sub-pixel 30 adjacent thereto, thereby achieving a great improvement in transmittance while ensuring a large viewing angle performance.
In summary, the display panel of the invention includes a plurality of scan lines extending along a horizontal direction, a plurality of data lines extending along a vertical direction, and a plurality of sub-pixels arranged in an array; each scanning line is connected with a row of sub-pixels; every two data lines are respectively connected with odd-row sub-pixels and even-row sub-pixels in a column of sub-pixels; the sub-pixel comprises a pixel electrode; the pixel electrode includes a trunk electrode dividing the sub-pixel into a plurality of domains; the main electrode of the sub-pixel is overlapped with the data line connected with the sub-pixel, so that the lightproof data line covers the main electrode and dark fringes at the periphery of the main electrode, the loss of light transmission is greatly reduced, and the penetration rate is effectively improved.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (5)
1. A display panel, comprising: the pixel structure comprises a plurality of scanning lines (10) extending along the horizontal direction, a plurality of data lines (20) extending along the vertical direction and a plurality of sub-pixels (30) arranged in an array;
each scanning line (10) connects a row of sub-pixels (30); every two data lines (20) are respectively connected with odd-row sub-pixels (30) and even-row sub-pixels (30) in a column of sub-pixels (30);
the sub-pixel (30) comprises a pixel electrode (301); the pixel electrode (301) includes a trunk electrode (302) dividing a sub-pixel (30) into a plurality of domains;
the main electrode (302) of the sub-pixel (30) is overlapped with the data line (20) connected with the sub-pixel (30);
the main electrode (302) divides the sub-pixels (30) into 8 domains;
the sub-pixels (30) comprise main sub-pixels (31) and sub-pixels (32) which are distributed at intervals along the vertical direction; the main electrode (302) comprises a first main electrode (3021) positioned in the main sub-pixel (31) and a second main electrode (3022) positioned in the sub-pixel (32); the first main electrode (3021) divides the main sub-pixel (31) into 4 domains, and the second main electrode (3022) divides the sub-pixel (32) into 4 domains;
the first trunk electrode (3021) includes a first horizontal electrode (30211) extending in a horizontal direction and a first vertical electrode (30212) extending in a vertical direction and perpendicularly intersecting the first horizontal electrode (30211); the second trunk electrode (3022) includes a second horizontal electrode (30221) extending in a horizontal direction and a second vertical electrode (30222) extending in a vertical direction and perpendicularly intersecting the second horizontal electrode (30221);
the first vertical electrode (30212) and the second vertical electrode (30222) each overlap with a data line (20) connected to the sub-pixel (30);
the first vertical electrode (30212) and the second vertical electrode (30222) are both located at one side of the sub-pixel (30);
in three adjacent sub-pixels (30) in the same row, the first vertical electrode (30212) and the second vertical electrode (30222) of the sub-pixel (30) in the middle are close to the first vertical electrode (30212) and the second vertical electrode (30222) of one sub-pixel (30) adjacent thereto, and are far from the first vertical electrode (30212) and the second vertical electrode (30222) of the other sub-pixel (30) adjacent thereto.
2. A display panel as claimed in claim 1 characterized in that the pixel electrode (301) further comprises a plurality of electrode branches (303) arranged in respective domains extending in different directions from the main electrode (302); the electrode branches (303) in one domain are parallel to each other and spaced from each other, and the extending directions of the electrode branches (303) in two adjacent domains are different.
3. A display panel as claimed in claim 2 characterized in that the electrode branches (303) in each domain extend at an angle of 45 °, 135 °, -135 °, and-45 ° to the horizontal, respectively.
4. A display panel as claimed in claim 1 characterized in that the sub-pixel (30) further comprises a first thin film transistor (33) connected to the electrode branch (303) in the main sub-pixel (31) and a second thin film transistor (34) connected to the electrode branch (303) in the sub-pixel (32); the data line (20) is connected with the first thin film transistor (33) and the second thin film transistor (34), and the scanning line (10) is connected with the first thin film transistor (33) and the second thin film transistor (34).
5. The display panel according to claim 4, wherein the first thin film transistor (33) and the second thin film transistor (34) are both located between the primary sub-pixel (31) and the secondary sub-pixel (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910075939.7A CN109634012B (en) | 2019-01-25 | 2019-01-25 | Display panel |
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| CN201910075939.7A CN109634012B (en) | 2019-01-25 | 2019-01-25 | Display panel |
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| CN109634012A CN109634012A (en) | 2019-04-16 |
| CN109634012B true CN109634012B (en) | 2021-07-23 |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708105B (en) | 2019-10-17 | 2020-10-21 | 友達光電股份有限公司 | Pixel array substrate |
| CN110716354B (en) | 2019-10-30 | 2021-04-02 | 深圳市华星光电半导体显示技术有限公司 | Display device |
| CN110928084A (en) * | 2019-11-18 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit, array substrate and display device |
| CN111240113B (en) | 2020-03-11 | 2021-07-06 | Tcl华星光电技术有限公司 | Array substrate and display panel |
| CN111308803B (en) | 2020-03-12 | 2021-10-08 | 深圳市华星光电半导体显示技术有限公司 | Array substrate |
| CN111258143A (en) * | 2020-03-18 | 2020-06-09 | Tcl华星光电技术有限公司 | Display panel and display device |
| CN111308811B (en) * | 2020-04-02 | 2022-10-04 | Tcl华星光电技术有限公司 | Array substrate and display panel |
| CN111474789A (en) | 2020-05-13 | 2020-07-31 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and liquid crystal display panel |
| CN112068363B (en) * | 2020-09-11 | 2022-07-29 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112185315B (en) * | 2020-10-19 | 2022-04-26 | Tcl华星光电技术有限公司 | Liquid crystal display panel driving method, liquid crystal display panel and liquid crystal display device |
| CN112363356B (en) * | 2020-11-17 | 2022-02-22 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
| CN112859403A (en) * | 2021-03-01 | 2021-05-28 | Tcl华星光电技术有限公司 | Liquid crystal display panel |
| CN113485046B (en) * | 2021-07-23 | 2022-08-02 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN113936564B (en) * | 2021-10-09 | 2023-12-19 | 惠州华星光电显示有限公司 | Display panel and display terminal |
| CN117157580A (en) * | 2022-03-30 | 2023-12-01 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN114879418A (en) * | 2022-07-11 | 2022-08-09 | 惠科股份有限公司 | Array substrate and display panel |
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| CN101359141A (en) * | 2007-08-01 | 2009-02-04 | 三星电子株式会社 | Display device |
| CN106353939A (en) * | 2016-10-17 | 2017-01-25 | 友达光电股份有限公司 | Pixel unit and display panel thereof |
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| CN101359141A (en) * | 2007-08-01 | 2009-02-04 | 三星电子株式会社 | Display device |
| CN106353939A (en) * | 2016-10-17 | 2017-01-25 | 友达光电股份有限公司 | Pixel unit and display panel thereof |
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