CN110515250B

CN110515250B - Display panel, driving method and display device

Info

Publication number: CN110515250B
Application number: CN201910818966.9A
Authority: CN
Inventors: 陈二香; 刘保玲; 黄瑞琪; 韩玉敏; 李攀; 崔婷婷; 韩笑男; 李文屹
Original assignee: Shanghai AVIC Optoelectronics Co Ltd
Current assignee: Shanghai AVIC Optoelectronics Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2021-11-12
Anticipated expiration: 2039-08-30
Also published as: CN110515250A

Abstract

The invention provides a display panel, a driving method and a display device, wherein the display panel comprises a plurality of repeating units and a plurality of sub-pixels, and the repeating units comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are sequentially arranged along a first direction; the second sub-pixel is a white sub-pixel, a colorless sub-pixel or a yellow sub-pixel; in a repeating unit, the first sub-pixel and the second sub-pixel form a first pixel unit, and the second sub-pixel and the third sub-pixel form a second pixel unit; when displaying, the first sub-pixel and the second sub-pixel in the first pixel unit are controlled simultaneously, and the second sub-pixel and the third sub-pixel in the second pixel unit are controlled simultaneously; the first pixel unit and the second pixel unit share one second sub-pixel. In the embodiment of the invention, the second sub-pixel can improve the display brightness of the first sub-pixel and the third sub-pixel, so that the display brightness of a display product is improved.

Description

Display panel, driving method and display device

Technical Field

The invention relates to the technical field of display, in particular to a display panel, a driving method and a display device.

Background

Liquid crystal display and electrophoretic display are two common types in the current display field, and with the rapid development of display technology, smart supermarkets, smart homes and the like also become mainstream, for example, the use of electronic tags promotes the intellectualization of supermarkets, and refrigerators, shower doors and the like with display and touch functions make the lives of people more intelligent.

However, the usage scenarios of the electronic tags and smart homes are generally environments with high brightness, such as: a plurality of illuminating lamps are arranged in a supermarket, and people in the house always want to be a normally bright environment when the people move, so that the problem of low brightness still exists in the conventional electronic tags and intelligent home display screens.

Meanwhile, due to the limitation of the use environment, the use time of the electronic tag and the smart home display screen is far longer than that of products such as mobile phones and computers, and for the transmission type display screen, if the backlight brightness is improved to improve the display brightness, the power consumption is too high, and the use time required by the electronic tag and the smart home display screen cannot be met; for the reflective display, because the ambient light is utilized during the display, the display brightness is limited by the ambient light, and if the ambient light is increased to increase the display brightness, because the sensitivity of human eyes to the display brightness is influenced by the environment, the problem of low display brightness is not improved by simultaneously brightening the ambient light and the display screen light.

Disclosure of Invention

In view of this, embodiments of the present invention provide a display panel, a driving method, and a display device, so as to solve the technical problem of low brightness of the existing electronic tags and smart home display screens.

In a first aspect, an embodiment of the present invention provides a display panel, including:

the liquid crystal display panel comprises a plurality of gate lines and a plurality of data lines, wherein the gate lines extend along a first direction and are arranged along a second direction, the data lines extend along the second direction and are arranged along the first direction, and the first direction and the second direction are crossed;

a plurality of repeating units and a plurality of sub-pixels, wherein the repeating units comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are sequentially arranged along the first direction, and the plurality of sub-pixels comprise the first sub-pixel, the second sub-pixel and the third sub-pixel;

the color resistance corresponding to the first sub-pixel is a first color resistance, the color resistance corresponding to the second sub-pixel is a second color resistance, and the color resistance corresponding to the third sub-pixel is a third color resistance;

in one repeating unit, the first sub-pixel and the second sub-pixel constitute a first pixel unit, and the second sub-pixel and the third sub-pixel constitute a second pixel unit;

a plurality of pixel electrodes independent of each other, the plurality of pixel electrodes including a plurality of first pixel electrodes corresponding to the first sub-pixels one to one, a plurality of second pixel electrodes corresponding to the second sub-pixels one to one, and a plurality of third pixel electrodes corresponding to the third sub-pixels one to one;

the first pixel electrode is electrically connected with at least one first thin film transistor, and the second pixel electrode is electrically connected with at least two second thin film transistors; the third pixel electrode is electrically connected with at least one third thin film transistor;

in one repeating unit, one first thin film transistor and one second thin film transistor are connected to the same first data line, and one second thin film transistor and one third thin film transistor are connected to the same second data line;

in one repeating unit, one first thin film transistor is electrically connected with one second thin film transistor, or/and one second thin film transistor is electrically connected with one third thin film transistor;

the second color resistance is white color resistance, colorless color resistance or yellow color resistance, and the first color resistance is different from the second color resistance and the third color resistance.

On the other hand, an embodiment of the present invention further provides a driving method for the display panel, including a first pure color picture and a second pure color picture, when the first pure color picture is displayed, the plurality of gate lines are sequentially turned on, odd-numbered data lines are provided with a first voltage, and even-numbered data lines are provided with a second voltage; when the second pure color picture is displayed, the gate lines are sequentially opened, the data lines of odd number are provided with a second voltage, and the data lines of even number are provided with a first voltage;

the first voltage is not equal to the second voltage, and the common electrode is provided with the second voltage.

Finally, the embodiment of the invention also provides a display device which comprises the display panel.

Compared with the prior art, the display panel, the driving method and the display device provided by the embodiment of the invention have the following technical effects:

the display brightness is improved by adding a white sub-pixel (the color resistance corresponding to the sub-pixel is white), a colorless sub-pixel (the color resistance corresponding to the sub-pixel is colorless) or a yellow sub-pixel (the color resistance corresponding to the sub-pixel is yellow) with higher reflectivity, and the sub-pixels for improving the reflectivity are electrically connected with the sub-pixels of other colors, so that a control port is not required to be added on a display panel, namely, the number of pins of a driving chip is not required to be increased, and therefore, the increase of power consumption caused by the improvement of the brightness is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an array substrate of the display panel shown in FIG. 1;

fig. 3 is a top view of a display panel according to an embodiment of the present invention;

FIG. 4 is a top view of another display panel provided in accordance with an embodiment of the present invention;

FIG. 5 is a top view of another display panel provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of an array substrate structure of a display panel according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view along AA' of FIG. 6;

FIG. 8 is a schematic view of another structure of the array substrate of the display panel shown in FIG. 1;

FIG. 9 is a schematic view of another structure of the array substrate of the display panel shown in FIG. 1;

FIG. 10 is a schematic view of another structure of the array substrate of the display panel shown in FIG. 1;

FIG. 11 is a schematic view of another structure of the array substrate of the display panel shown in FIG. 1;

FIG. 12 is a diagram of a display panel driving method according to an embodiment of the present invention;

fig. 13 is a display device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of an array substrate of the display panel shown in fig. 1, and fig. 3 is a top view of the display panel according to the embodiment of the present invention. In the configuration shown in fig. 1, the display panel includes an array substrate and a counter substrate, and the counter substrate is provided with a color resistor R, W, G, a common electrode COM, and a black matrix 202. Wherein, the array substrate includes:

a plurality of gate lines 12 and a plurality of data lines 14 on one side of the substrate 10, the plurality of gate lines 12 extending in a first direction X and arranged in a second direction Y, the plurality of data lines 14 extending in the second direction Y and arranged in the first direction X, the first direction X and the second direction Y intersecting each other;

a plurality of repeating units PU including a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3 sequentially arranged in a first direction X, and a plurality of sub-pixels P including the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3;

the color resistance corresponding to the first sub-pixel P1 is a first color resistance, the color resistance corresponding to the second sub-pixel P2 is a second color resistance, and the color resistance corresponding to the third sub-pixel P3 is a third color resistance; in one repeating unit, the first sub-pixel and the second sub-pixel constitute a first pixel unit, and the second sub-pixel and the third sub-pixel constitute a second pixel unit;

a plurality of pixel electrodes 102 independent of each other, the plurality of pixel electrodes 102 including a plurality of first pixel electrodes 102A corresponding to the first sub-pixels P1 one to one, a plurality of second pixel electrodes 102B corresponding to the second sub-pixels P2 one to one, and a plurality of third pixel electrodes 102C corresponding to the third sub-pixels P3 one to one;

a plurality of thin film transistors TFT, a first pixel electrode 102A electrically connected to at least one first thin film transistor TFTA, and a second pixel electrode P2 electrically connected to at least one second thin film transistor TFTB; a third pixel electrode P3 electrically connected to the at least one third tft;

in one repeating unit PU, a first thin film transistor TFTA is electrically connected to a second thin film transistor TFTB, or/and a second thin film transistor TFTB is electrically connected to a third thin film transistor TFTC;

Specifically, optionally, as shown in fig. 3, the first color resistor is a red resistor R, the second color resistor is a white resistor W, and the third color resistor is a green resistor G. Taking the color resistance arrangement shown in fig. 3 as an example, when the display panel provided by the embodiment of the invention performs display, in the same pixel row, the first sub-pixel P1 and the second sub-pixel P2 are disposed adjacently, and when the gate line 12 of the row is turned on, the first sub-pixel P1 and the second sub-pixel P2 disposed adjacently are written with the same potential at the same time; at this time, since the second color resist corresponding to the second subpixel P2 is the white resist W, and the white resist W does not substantially filter natural light, the reflectance of the subpixel corresponding to the white resist W in the reflective display is high, and the luminance of the color resist color display corresponding to the first subpixel P1 can be increased, for example, in the configuration shown in fig. 3, the luminance of the red display screen can be increased. In the display panel provided by the embodiment of the present invention, the data line 14 for writing a signal to the white sub-pixel may be directly connected to the data line corresponding to the adjacent sub-pixel, or like the structure shown in fig. 2, the data line 14 for writing a signal to the white sub-pixel and the data line corresponding to the adjacent sub-pixel share one data line, so that a control port does not need to be added on the display panel, that is, the number of pins of the driving chip does not need to be increased, thereby avoiding the increase of power consumption caused by the increase of brightness.

Since the color resistance corresponding to the second sub-pixel P2 is white color resistance, colorless color resistance or yellow color resistance, which is used for highlighting, the repeating unit PU in the structure can be divided into two sub-rereading units as shown in fig. 2: the color displayed by the first sub-repeating unit PUA is the color corresponding to the first sub-pixel P1, and the color displayed by the second sub-repeating unit PUB is the color corresponding to the second sub-pixel P2. For the electronic tag with low power consumption or the wearable display product, because the display is carried out for a long time, the display does not need to display rich colors, and therefore, when the electronic tag is in operation, the first sub-repeating unit PUA can be displayed or the second sub-repeating unit PUB can be displayed according to the needs. Wherein the second sub-pixel P2 may be used for highlighting the first sub-pixel P1 and/or for highlighting the second sub-pixel P2, the second sub-pixel P2 being part of both a sub-repeat unit PUA and a second sub-repeat unit PUB.

Alternatively, with continued reference to fig. 2 and 3, a second pixel electrode P2 is electrically connected to at least two second thin film transistors TFTB, the data lines 14 include a plurality of first data lines 14a and a plurality of second data lines 14b, and in a repeating unit PU, a first thin film transistor TFTA is connected to a second thin film transistor TFTB and the same first data line 14a, and a second thin film transistor TFTB is connected to a third thin film transistor TFTC and the same second data line 14 b. As can be seen from fig. 2 and 3, the white sub-pixel (the sub-pixel corresponding to the white color resistor W) and the red sub-pixel (the sub-pixel corresponding to the red color resistor R) share one data line, i.e., share one first data line 14 a; meanwhile, the white sub-pixel (the sub-pixel corresponding to the white color resistance W) and the green sub-pixel (the sub-pixel corresponding to the green color resistance G) share one data line, that is, share one second data line 14 b. Therefore, in the embodiment of the present invention, compared with the display panel capable of implementing pure red, pure white, and pure green pictures in the prior art, the number of data lines can be reduced in the structure provided in the embodiment of the present invention, and specifically, the number of data lines can be reduced by one third by taking the structure shown in fig. 2 as an example, so that the display panel provided in the embodiment can not only improve the display brightness of pure red and pure green pictures, but also reduce the number of data lines, further improve the proportion of the whole opening area of the display panel, and thus improve the whole brightness; meanwhile, the number of pins on the corresponding driving chip of the data line can be reduced, and the power consumption of the display panel is further reduced.

Optionally, in the display panel provided in the embodiment of the present invention, the areas of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are the same. Generally, the area of each sub-pixel in the display panel is the same to reduce the design difficulty of the display panel. Therefore, in the embodiment of the invention, the areas of the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 are designed to be the same, and the design rule of a common panel is not changed, so that the process difficulty is not increased while the reflectivity and the display brightness are improved.

Optionally, in the display panel provided in the embodiment of the present invention, the area of the second sub-pixel P2 is smaller than the area of the first sub-pixel P1, and is smaller than the area of the third sub-pixel P3. When displaying other pure color images than black and white, the addition of the white sub-pixel increases the brightness of the reflective display panel, but has a certain effect on the color coordinate of the display color. For example, when the areas of the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 are the same, the color coordinates of a pure red screen are shifted by 0.02, and for an environment with harsh application conditions, the area ratio corresponding to the white sub-pixel can be reduced, thereby reducing the degree of color coordinate shift.

In the display panel provided by the embodiment of the invention, the plurality of sub-pixels P are arranged in a plurality of rows and columns along the first direction X and the second direction Y, and optionally, the first direction X and the second direction Y are perpendicular. And the color resistances corresponding to the sub-pixels positioned in the same column are the color resistances of the same color. Specifically, as shown in fig. 3, the sub-pixels in the same column all correspond to a red color resistor R, a white color resistor W, or a green color resistor G.

Further, the color resistance of the third color and the color resistance of the second color are the same color resistance. Specifically, referring to fig. 4, fig. 4 is a top view of another display panel according to an embodiment of the present invention, in which the second color resistance is disposed corresponding to the second sub-pixel P2, the third color resistance is disposed corresponding to the third sub-pixel P3, and both the third color resistance and the second color resistance are white resistance W. In the display panel provided in this embodiment, white display and single color display can be realized, and for example, in the structure shown in fig. 4, the display panel can realize pure red display and pure white display. It should be noted that the structure shown in fig. 4 is only an example, and in the display panel provided in the embodiment of the present invention, the first color resistor may be a red color resistor, and may also be a green color resistor or a blue color resistor. In practical application, the color selection of the first color resistance can be set according to specific requirements, for example, a supermarket meets discount requirements in many times, and in order to remind customers to pay attention to discount commodities, an electronic tag used for the supermarket can be selected to realize red and white display; products for smart wear need to have a color selected from a collocation of the overall wear according to the customer's preferences.

Optionally, in the display panel provided in the embodiment of the present invention, in the multiple repeating units PU, each repeating unit PU further includes a fourth sub-pixel P4, a color resistance corresponding to the fourth sub-pixel P4 is a fourth color resistance, and the fourth color resistance is different from both the first color resistance and the second color resistance. Specifically, referring to fig. 5, fig. 5 is a top view of another display panel according to an embodiment of the present invention, in which the first color resistance corresponding to the first sub-pixel P1 is a red color resistance R, the second color resistance corresponding to the second sub-pixel P2 is a white color resistance W, the third color resistance corresponding to the third sub-pixel P3 is a green color resistance G, and the fourth color resistance corresponding to the fourth sub-pixel P4 is a blue color resistance B. The white color resistor W is arranged between the red color resistor R and the green color resistor G, and for electronic tags and wearing products, the requirements of many application occasions on the brightness of red and green are higher, so that the brightness of the product can be improved, and lower power consumption is realized while the application requirements are met.

Optionally, referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of an array substrate of a display panel according to an embodiment of the present invention, and fig. 7 is a schematic structural diagram of a cross section along AA' of fig. 6, where the display panel according to the embodiment of the present invention is a reflective display panel or a transflective display panel, and for a liquid crystal display panel, the reflective display panel or the transflective display panel further includes a plurality of mutually independent reflective electrodes 104, the reflective electrodes 104 and pixel electrodes 102 are stacked in a one-to-one correspondence manner, and the pixel electrodes 102 are connected to one electrode of the TFT through the vias 3. It should be noted that the structure of each sub-pixel in fig. 6 is the same, and for the sake of clarity of the drawing, only the structure corresponding to one sub-pixel is illustrated.

In the structures shown in fig. 6 and 7, the reflective electrode 104 is in direct contact with the pixel electrode 102, and the area of the reflective electrode 104 is smaller than that of the pixel electrode 102, that is, in the opening region of the sub-pixel, there is a partial region where the reflective electrode 104 is not disposed. Since the reflective electrode 104 has a function of reflecting light, it is generally made of an opaque metal material, and the pixel electrode 102 may be made of a transparent material, such as Indium Tin Oxide (ITO), the structure shown in fig. 6 and 7 is a transflective display panel. However, the embodiment of the present invention also includes a fully reflective display panel, in which case, the reflective electrode 104 may be disposed to cover the pixel electrode 102; of course, the pixel electrode 102 may also be directly made of a metal material, and in this case, a reflective metal layer is not required. It should be noted that, in other embodiments provided by the present invention, the stacking positions of the pixel electrode 102 and the reflective electrode 104 may be interchanged, in which case, the pixel electrode 102 made of ITO may be used to protect the reflective electrode 104 made of metal, and no additional insulating layer is required to protect the reflective electrode 104 from corrosion.

With continued reference to fig. 6 and 7, the data line 14 between the first sub-pixel P1 and the second sub-pixel P2 is a first data line 14a, the data line 14 between the second sub-pixel P2 and the third sub-pixel P3 is a first data line 14b, the first data line 14a and the second data line 14b each include a first protrusion in the first direction X and a second protrusion in the opposite direction of the first direction X, the first data line 14a provides a signal to the pixel electrode 102 of the second sub-pixel P2 through the first protrusion, and provides a signal to the pixel electrode of the first sub-pixel P1 through the second protrusion; the second data line 14b supplies a signal to the pixel electrode 102 of the third sub-pixel P3 through the first protrusion, and supplies a signal to the pixel electrode of the second sub-pixel P2 through the second protrusion. Alternatively, the thin film transistor TFT corresponding to the first sub-pixel P1, which is supplied with a signal through the first data line 14a, and the thin film transistor TFT corresponding to the second sub-pixel P2 are disposed adjacent to the first data line 14a, the thin film transistor TFT corresponding to the third sub-pixel P3, which is supplied with a signal through the second data line 14b, and the thin film transistor TFT corresponding to the second sub-pixel P2 are disposed adjacent to the first data line 14 b. For the liquid crystal display panel, such an arrangement facilitates the arrangement of the elliptical support pillars whose projections on the array substrate 10 overlap with the thin film transistors on both sides of the first data line 14a and/or overlap with the thin film transistors on both sides of the second data line 14 b. The good supporting effect can be realized, and meanwhile, the reduction of the aperture opening ratio of the display panel is avoided.

With continued reference to fig. 7, optionally, the display panel provided in the embodiment of the present invention further includes electrodes for forming a storage capacitor, for example, a first storage electrode C11 and a second storage electrode C12, and the first storage electrode C11 and the second storage electrode C12 are oppositely stacked. Further alternatively, the first storage electrode C11 and the gate electrode of the thin film transistor TFT are disposed at the same layer, and the second storage electrode C12 and the source/drain electrode of the thin film transistor TFT are disposed at the same layer, that is, the second storage electrode C12 and the data line 14 are disposed at the same layer.

Optionally, with continuing reference to fig. 1, fig. 6 and fig. 7, the display panel according to the embodiment of the present invention further includes a first substrate 10, a second substrate 20 and a common electrode COM, the pixel electrode 102, the data line 14, the gate line 12 and the thin film transistor TFT are disposed on a side of the first substrate 10 close to the second substrate 20, and the first color resistor, the second color resistor and the third color resistor are disposed on a side of the second substrate 20 close to the first substrate 10. For example, as shown in fig. 1, the first color resistor is a red color resistor R, the second color resistor is a white color resistor W, and the third color resistor is a green color resistor G. In the structure shown in fig. 1, the display function layer is the electrophoretic particles 30, and in this case, the pixel electrode 102 may be made of a metal material instead of the pixel reflective electrode 104. The structure shown in fig. 6 and 7 is an array substrate structure of a transflective display panel, which is more suitable for liquid crystal display. Alternatively, in displaying, the voltage provided to the common electrode COM is a common voltage, and the common voltage is zero.

In the display panel structure provided by the above embodiment of the present invention, the pixel electrode 102 corresponding to the second sub-pixel P2 and the pixel electrode 102 corresponding to the first sub-pixel P1 are connected to the same data line through the thin film transistor TFT; the pixel electrode 102 corresponding to the second sub-pixel P2 is also connected to the same data line as the pixel electrode 102 corresponding to the third sub-pixel P2 via a thin film transistor TFT. However, the embodiment of the invention is not limited thereto, for example, referring to fig. 8, fig. 8 is another structural schematic diagram of the array substrate of the display panel shown in fig. 1, in which the pixel electrode 102 corresponding to the second sub-pixel P2 is only connected to the same data line as the pixel electrode 102 corresponding to the first sub-pixel P1 through the TFT; the pixel electrode 102 corresponding to the second sub-pixel P2 is not connected to the same data line as the pixel electrode 102 corresponding to the third sub-pixel P2 via the thin film transistor TFT. At this time, the second sub-pixel P2 is used to highlight the color displayed by the first sub-pixel P1.

Alternatively, as shown in fig. 9, fig. 9 is another schematic structural diagram of the array substrate of the display panel shown in fig. 1, and in other embodiments of the present invention, the pixel electrode 102 corresponding to the second sub-pixel P2 is not connected to the same data line through the thin film transistor TFT as the pixel electrode 102 corresponding to the first sub-pixel P1; the pixel electrode 102 corresponding to the second sub-pixel P2 and only the pixel electrode 102 corresponding to the third sub-pixel P2 are connected to the same data line through the thin film transistor TFT. At this time, the second sub-pixel P2 is used to brighten the color displayed by the third sub-pixel P1.

It should be noted that, in the above embodiment, compared to the prior art, the number of the data lines is reduced, specifically, one third of the data lines can be reduced, and since the number of the data lines is reduced by one third, the number of the pins corresponding to the driving chip of the display panel is also reduced by one third, and the power consumption of the display panel is greatly reduced.

In the above embodiment, in order to brighten the other sub-pixels P by the second sub-pixel P2, the data lines 14 of the second sub-pixel P2 and the other sub-pixels P need to be shared. However, in other embodiments provided by the present invention, the second sub-pixel P2 may brighten the other sub-pixels P in other manners. Specifically, referring to fig. 10, fig. 10 is a schematic view of another structure of the array substrate of the display panel shown in fig. 1.

The display panel includes a display area AA and a non-display area non-AA disposed around the display area AA, a plurality of data lines 14, a plurality of first, second, and third thin film transistors TFTA, TFTA for controlling the first sub-pixel P1, TFTB for controlling the second sub-pixel P2, and TFTC for controlling the third sub-pixel P3; the data lines 14 include a plurality of first data lines 14A, a plurality of second data lines 14B, and a plurality of third data lines 14C, and in one repeating unit PU, a second thin film transistor TFTB is connected to a third data line 14C, a first thin film transistor TFTA is connected to a first data line 14A, and a third thin film transistor TFTC is connected to a second data line 14B;

a plurality of fourth thin film transistors SW are disposed in the non-display region non-AA, a first data line 14A is electrically connected to one electrode of the fourth thin film transistor SW, a third data line 14C is electrically connected to the other electrode of the fourth thin film transistor SW, a control terminal of each of the plurality of fourth thin film transistors SW is electrically connected to a control signal line C, and the control signal line C is connected to the driving chip IC disposed in the non-display region non-AA. As shown in fig. 10, if the first data line 14A is electrically connected to the drain d of a fourth thin film transistor SW, the third data line 14C is electrically connected to the source of the fourth thin film transistor SW.

In the display panel provided in this embodiment, the second sub-pixel P2 for incrementing other sub-pixels may be independently displayed through the fourth thin film transistor SW located in the non-display region non-AA, or may be displayed together with other sub-pixels P, for example, the first sub-pixel P1 in fig. 10, to achieve the effect of brightness enhancement. Therefore, the structure provided by the embodiment has stronger adjustability, and can determine whether to highlight the display picture according to the requirements of the scene.

Further alternatively, as shown in fig. 11, fig. 11 is another schematic structural diagram of the array substrate of the display panel shown in fig. 1. The display panel further includes a plurality of fourth data lines 14D, a second tft connected to the fourth data lines 14D, a second data line 14B electrically connected to one electrode of a fourth tft SW, and a fourth data line 14D electrically connected to the other electrode of the fourth tft SW. At this time, the second sub-pixel P2 may be used for brightening the color displayed by the first sub-pixel P1, and may also be used for brightening the color displayed by the third sub-pixel P3; due to the provision of the fourth thin film transistor SW, it is possible to control which sub-pixel adjacent to the second sub-pixel P2 is highlighted, unlighted, or highlighted at the same time as necessary.

On the other hand, the embodiment of the invention also provides a driving method for any one of the display panels. Referring to fig. 2 and 12, fig. 12 is a driving method of a display panel according to an embodiment of the present invention, the display panel includes a first pure color frame and a second pure color frame, when the first pure color frame is displayed, a plurality of gate lines 12 are sequentially turned on, odd data lines 14 are provided with a first voltage, even data lines 14 are provided with a second voltage or are not provided with a second voltage; when the second pure color picture is displayed, the plurality of gate lines 12 are sequentially opened, the odd-numbered data lines 14 are supplied with the second voltage or are not supplied with the voltage, and the even-numbered data lines 14 are supplied with the first voltage; the first voltage is not equal to the second voltage, and the common electrode COM is supplied with the second voltage.

Optionally, the first voltage is a positive voltage and the second voltage is a zero voltage. Since the color resistance corresponding to the sub-pixels in each column is the same, the color displayed by the sub-pixels electrically connected with the same data line is the same. In monochrome display, the odd data lines display different colors from the even data lines, because the second subpixel P2 is for brightness enhancement and the three columns of subpixels require only two data lines. When only monochrome display is needed, only half of the data lines need to be supplied with signals, and the other data lines do not need to work, and at this time, no voltage signal is supplied, or the same voltage as the common electrode COM is supplied all the time.

Finally, an embodiment of the present invention further provides a display device, including the display panel provided in any of the above embodiments. As shown in fig. 13, fig. 13 is a display device according to an embodiment of the present invention, the display device is an electronic tag, a display panel of the electronic tag is divided into a plurality of regions for displaying, and each region displays information of each product. When discount is needed or promotion activities are needed, preferential prices can be highlighted, and at the moment, a color different from other information can be selected for displaying, and the color is highlighted for more highlighting the information. For example: red represents the discounted price which can be highlighted to attract customers due to the white or yellow highlighted sub-pixels.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, comprising:

the first pixel electrode is electrically connected with at least one first thin film transistor, and the second pixel electrode is electrically connected with at least one second thin film transistor; the third pixel electrode is electrically connected with at least one third thin film transistor;

in one repeating unit, one second thin film transistor is connected with one third data line, one first thin film transistor is connected with one first data line, and one third thin film transistor is connected with one second data line;

the display panel comprises a display area and a non-display area arranged around the display area, wherein a plurality of fourth thin film transistors are arranged in the non-display area, a first data line is electrically connected with one electrode of the fourth thin film transistor, a third data line is electrically connected with the other electrode of the fourth thin film transistor, and the control end of each fourth thin film transistor is electrically connected with a control signal line;

the second color resistance is white color resistance, colorless color resistance or yellow color resistance, and the first color resistance is different from the second color resistance and the third color resistance;

the plurality of sub-pixels are arranged in a plurality of rows and a plurality of columns along the first direction and the second direction, and the color resistances corresponding to the sub-pixels positioned in the same column are the color resistances of the same color.

2. The display panel according to claim 1, wherein each of the second pixel electrodes is electrically connected to at least two second thin film transistors, the plurality of data lines includes a plurality of first data lines and a plurality of second data lines, one of the first thin film transistors is connected to one of the second thin film transistors and the same one of the first data lines, and one of the second thin film transistors is connected to one of the third thin film transistors and the same one of the second data lines in one of the repeating units.

3. The display panel according to claim 2, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel have the same area.

4. The display panel according to claim 2, wherein the second sub-pixel has an area smaller than that of the first sub-pixel and smaller than that of the third sub-pixel.

5. The display panel according to claim 2, wherein the third color resists and the second color resists are resists of the same color.

6. The display panel of claim 5, wherein the first color resistance is a red color resistance, a green color resistance, or a blue color resistance.

7. The display panel according to claim 6, wherein the repeating unit further comprises a fourth sub-pixel, the color resistance corresponding to the fourth sub-pixel is a fourth color resistance, and the fourth color resistance is different from the first color resistance and the second color resistance.

8. The display panel according to claim 2, further comprising a plurality of mutually independent reflective electrodes, wherein the reflective electrodes and the pixel electrodes are stacked in a one-to-one correspondence.

9. The display panel according to claim 2, further comprising a first substrate, a second substrate, and a common electrode, wherein the pixel electrode, the data line, the gate line, and the thin film transistor are disposed on a side of the first substrate adjacent to the second substrate, and wherein the first color resistor, the second color resistor, and the third color resistor are disposed on a side of the second substrate adjacent to the first substrate.

10. The display panel according to claim 9, further comprising a common voltage, wherein the common voltage is a voltage of the common electrode, and wherein the common voltage is zero.

11. The display panel according to claim 1, further comprising a plurality of fourth data lines, wherein one of the second thin film transistors is electrically connected to the fourth data lines, one of the second data lines is electrically connected to one of the fourth thin film transistors, and one of the fourth data lines is electrically connected to the other of the fourth thin film transistors.

12. A driving method for the display panel according to any one of claims 1 to 11, comprising a first pure color picture and a second pure color picture, wherein when the first pure color picture is displayed, the plurality of gate lines are sequentially turned on, odd-numbered data lines are supplied with a first voltage, even-numbered data lines are supplied with a second voltage or are not supplied with a voltage; when the second pure color picture is displayed, the plurality of gate lines are sequentially opened, the data lines of odd number are provided with second voltage or are not provided with voltage, and the data lines of even number are provided with first voltage;

13. The driving method according to claim 12, wherein the first voltage is a positive voltage, and the second voltage is a zero voltage.

14. A display device characterized by comprising the display panel according to any one of claims 1 to 11.