CN113109963B - Array substrate, liquid crystal display panel and display device - Google Patents
Array substrate, liquid crystal display panel and display device Download PDFInfo
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- CN113109963B CN113109963B CN202110453388.0A CN202110453388A CN113109963B CN 113109963 B CN113109963 B CN 113109963B CN 202110453388 A CN202110453388 A CN 202110453388A CN 113109963 B CN113109963 B CN 113109963B
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
Abstract
The invention provides an array substrate, a liquid crystal display panel and a display device, wherein the array substrate comprises: a substrate; the scanning lines and the data lines are positioned on the same side of the substrate, the scanning 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 is crossed with the second direction; first heating electrodes and second heating electrodes both located on the same side of the substrate as the scanning lines, the plurality of first heating electrodes being arranged in the second direction, and the plurality of second heating electrodes being arranged in the first direction; the first heating electrode and the second heating electrode are different layers and are electrically connected through a through hole. The invention provides an array substrate, a liquid crystal display panel and a display device, which aim to solve the problem of poor display of the liquid crystal display panel in a low-temperature state.
Description
Technical Field
The invention relates to the technical field of display, in particular to an array substrate, a liquid crystal display panel and a display device.
Background
Because the liquid crystal display device is often required to be in a special working environment for military or vehicle-mounted display, the applicable environmental temperature range is large, and the liquid crystal display device can work normally even in the temperature range of-20 ℃ to 55 ℃. Therefore, in the development of the liquid crystal display device for military or vehicle-mounted display, measures must be taken to widen the low-temperature working range of the liquid crystal display device and ensure that the liquid crystal display device can normally work in a low-temperature environment.
Disclosure of Invention
The invention provides an array substrate, a liquid crystal display panel and a display device, which aim to solve the problem of poor display of the liquid crystal display panel in a low-temperature state.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
a substrate;
the scanning lines and the data lines are positioned on the same side of the substrate, the scanning 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 is crossed with the second direction;
the first heating electrodes and the second heating electrodes are positioned on the same side of the substrate with the scanning lines, the plurality of first heating electrodes are arranged along the second direction, and the plurality of second heating electrodes are arranged along the first direction;
the first heating electrode and the second heating electrode are different layers and are electrically connected through a through hole.
In a second aspect, an embodiment of the present invention provides a liquid crystal display panel, including the array substrate, a liquid crystal layer, and a color film substrate described in the first aspect, where the liquid crystal layer is located between the array substrate and the color film substrate.
In a third aspect, an embodiment of the present invention provides a display device, including the liquid crystal display panel according to the second aspect.
In the array substrate provided by the embodiment of the invention, the plurality of first heating electrodes are arranged along the second direction, and the plurality of second heating electrodes are arranged along the first direction, so that the plurality of first heating electrodes and the plurality of second heating electrodes are crossed to form a heating grid, and the uniformity of heating liquid crystal molecules in the liquid crystal display panel is improved. Furthermore, the first heating electrode is electrically connected with the second heating electrode in different layers, so that wires do not need to be arranged on the first heating electrode and the second heating electrode which are electrically connected with each other, the number of the wires for connecting the first heating electrode and the second heating electrode is reduced, and the first heating electrode and the second heating electrode are arranged in different film layers respectively due to the fact that the first heating electrode and the second heating electrode are arranged in different directions, and the difficulty in arranging the first heating electrode and the second heating electrode can be reduced.
Drawings
Fig. 1 is a schematic top view of an array substrate according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view along the direction AA' in FIG. 1;
fig. 3 is a schematic top view of another array substrate according to an embodiment of the present invention;
fig. 4 is a schematic top view of another array substrate according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along the direction BB' in FIG. 4;
fig. 6 is a schematic cross-sectional structure view of another array substrate according to an embodiment of the present invention;
fig. 7 is a schematic top view illustrating an array substrate according to another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view taken along the direction CC' in FIG. 7;
fig. 9 is a schematic top view illustrating an array substrate according to another embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view taken along direction DD' in FIG. 9;
fig. 11 is a schematic top view illustrating an array substrate according to another embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view taken along direction EE' of FIG. 11;
fig. 13 is a schematic top view illustrating an array substrate according to another embodiment of the present invention;
fig. 14 is a schematic cross-sectional structural diagram of a display panel according to an embodiment of the present invention;
fig. 15 is a schematic diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The liquid crystal material has increased viscosity coefficient at low temperature, raised threshold voltage, slow response speed and even liquid crystal crystallization, so that the liquid crystal display device cannot work normally. Taking the wide temperature type lcd device of sharp company as an example, the normal temperature device has a normal operating point at a low temperature of-5 deg.c and the wide temperature device has a normal operating point at a low temperature of-10 deg.c, and the response speed of the lcd device will be slower below this temperature.
Fig. 1 is a schematic top view illustrating an array substrate according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view along an AA' direction in fig. 1, referring to fig. 1 and fig. 2, the array substrate includes a substrate 10, a scan line 21, and a data line 22. The scan lines 21 and the data lines 22 are located on the same side of the substrate 10, the scan lines 21 extend along a first direction and are arranged along a second direction, the data lines 22 extend along the second direction and are arranged along the first direction, and the first direction and the second direction intersect. In one embodiment, the first direction and the second direction may be perpendicular. In another mode, the first direction and the second direction may not be perpendicular and form an included angle greater than 0 ° and less than 90 °. The array substrate may further include a first heater electrode 31 and a second heater electrode 32, the first heater electrode 31 and the second heater electrode 32 are both located on the same side of the substrate 10 as the scan line 21, the plurality of first heater electrodes 31 are arranged along the second direction, and the plurality of second heater electrodes 32 are arranged along the first direction. The first heating electrode 31 and the second heating electrode 32 are different layers, that is, the first heating electrode 31 and the second heating electrode 32 are located on different layers. The first heater electrode 31 and the second heater electrode 32 are electrically connected through a via hole.
In the array substrate provided by the embodiment of the invention, the plurality of first heating electrodes 31 are arranged along the second direction, and the plurality of second heating electrodes 32 are arranged along the first direction, so that the plurality of first heating electrodes 31 and the plurality of second heating electrodes 32 are crossed to form a heating grid, and the uniformity of heating liquid crystal molecules in the liquid crystal display panel is improved. Further, the first heating electrode 31 and the second heating electrode 32 are electrically connected in different layers, so that wires do not need to be arranged on the first heating electrode 31 and the second heating electrode 32 which are electrically connected with each other, the number of wires for connecting the first heating electrode 31 and the second heating electrode 32 is reduced, and the first heating electrode 31 and the second heating electrode 32 are respectively arranged in different film layers due to the fact that the first heating electrode 31 and the second heating electrode 32 are respectively provided with different arrangement directions, and the difficulty in arranging the first heating electrode 31 and the second heating electrode 32 can be reduced.
Alternatively, referring to fig. 1 and 2, the array substrate further includes a display area AA including an open area a1 and a non-open area a 2. The opening area A1 is a light-transmitting area, and light emitted by the backlight source can be emitted out of the liquid crystal display panel through the opening area A1, so that preset light-emitting brightness and light-emitting color are realized. The non-open area a2 is a light-shielding area, and generally, opaque metal traces, black matrix, and other elements may be disposed in the non-open area a 2. In an embodiment, the array substrate may only include the display area AA, so that the liquid crystal display panel realizes a full-screen display. In another embodiment, the array substrate may further include a non-display area, and the non-display area is located at the periphery of the display area AA. The second heater electrode 32 is disposed to be insulated from the data line 22 at the same layer in a direction perpendicular to the substrate 10, and the second heater electrode 32 overlaps the non-open area a 2. In the embodiment of the present invention, the second heating electrode 32 is disposed on the film layer where the data line 22 is located, so that no new film layer needs to be added to the second heating electrode 32, and the thicknesses of the array substrate and the liquid crystal display panel do not increase. The second heating electrode 32 is arranged on the film layer where the data line 22 is located, the distance between the second heating electrode 32 and the liquid crystal layer is short, and heat generated by the second heating electrode 32 can more easily and quickly reach the liquid crystal layer, so that the heating speed of liquid crystal molecules in the liquid crystal layer can be increased, the liquid crystal molecules in the liquid crystal layer can be quickly heated, liquid crystal crystallization can be prevented, the response speed of the liquid crystal display panel at a low temperature can be increased, and poor display of the liquid crystal display panel at a low temperature can be solved. The second heating electrode 32 overlaps the non-opening area a2, and the second heating electrode 32 does not shield the light in the opening area a1, so that the loss of the opening ratio is reduced, and the liquid crystal display panel has a larger opening ratio, thereby improving the opening ratio of the liquid crystal display panel.
Alternatively, referring to fig. 1 and 2, the first heater electrode 31 is disposed to be insulated from the scan line 21 in the same layer. The first heating electrode 31 overlaps with the non-opening area a2 in a direction perpendicular to the substrate 10. The first heating electrode 31 is at least partially located at the non-opening area a 2. In the embodiment of the present invention, the first heating electrode 31 is disposed on the film layer where the scanning line 21 is located, so that no new film layer needs to be added to the first heating electrode 31, and the thicknesses of the array substrate and the liquid crystal display panel do not increase. The vertical projection of the first heating electrode 31 on the substrate 10 overlaps with the non-opening area a2, the first heating electrode 31 will not shield the light in the opening area a1, thereby avoiding the influence of the first heating electrode 31 on the opening ratio, i.e. avoiding the loss of the opening ratio, and ensuring that the liquid crystal display panel has a larger opening ratio, thereby improving the opening ratio of the liquid crystal display panel.
Fig. 3 is a schematic top view structure diagram of another array substrate according to an embodiment of the present invention, fig. 4 is a schematic top view structure diagram of another array substrate according to an embodiment of the present invention, fig. 5 is a schematic cross-sectional structure diagram along a direction BB' in fig. 4, and referring to fig. 3-5, the array substrate further includes touch electrode lines 52 and touch electrodes 51. The touch electrode line 52 is located on a side of the data line 22 away from the substrate 10, and the film layer where the data line 22 is located between the film layer where the touch electrode line 52 is located and the substrate 10. The touch electrode 51 is located on a side of the touch electrode line 52 away from the substrate 10, and the film layer where the touch electrode line 52 is located between the film layer where the touch electrode 51 is located and the substrate 10. Each touch electrode 51 is electrically connected to at least one touch electrode line 52. The first heater electrode 31 is located between the touch electrode line 52 and the touch electrode 51. In the embodiment of the present invention, the touch electrode 51 and the touch electrode line 52 are both disposed in the array substrate, so that in-cell touch is implemented, and the integration level is improved. Between the film layer where the touch electrode 51 is located and the film layer where the touch electrode line 52 is located, an additional film layer is added for setting the first heating electrode 31, because the first heating electrode 31 is independently arranged on an independent film layer, the setting difficulty of the first heating electrode 31 is reduced, the distance between the first heating electrode 31 and the liquid crystal layer is short, the heat generated by the first heating electrode 31 can more easily and quickly reach the liquid crystal layer, thereby being beneficial to accelerating the heating speed of liquid crystal molecules in the liquid crystal layer, enabling the liquid crystal molecules in the liquid crystal layer to quickly heat up, preventing liquid crystal from crystallizing, improving the response speed of the liquid crystal display panel at low temperature, and solving the problem of poor display of the liquid crystal display panel at low temperature. In fig. 3, the self-capacitance touch electrode 51 is taken as an example for description, and the invention is not limited thereto, and in other embodiments, the touch electrode 51 may be a mutual capacitance touch electrode.
Alternatively, referring to fig. 3 to 5, the first heating electrode 31 overlaps the opening area a1 in a direction perpendicular to the substrate 10. The first heating electrode 31 is at least partially located at the opening area a 1. The first heater electrode 31 is made of a transparent conductive material. In the embodiment of the present invention, the transparent first heating electrode 31 is located between the touch electrode line 52 and the touch electrode 51, and the transparent first heating electrode 31 overlaps the opening area a1, so that the first heating electrode 31 is more favorable for heating the liquid crystal molecules in the opening area a1, the heating speed of the liquid crystal molecules in the liquid crystal layer is favorably increased, and the response speed of the liquid crystal display panel at low temperature is increased. On the other hand, the opening area a1 occupies most of the area of the display area AA, the vertical projection of the first heating electrode 31 on the substrate 10 overlaps with the opening area a1, and the first heating electrode 31 has a large enough space to ensure that the first heating electrode 31 with a large enough area is disposed, which is beneficial to increasing the heating speed of the liquid crystal molecules in the liquid crystal layer and improving the response speed of the liquid crystal display panel at low temperature. In the embodiment of the present invention, the first heating electrode 31 is made of a transparent conductive material, so that the first heating electrode 31 does not shield the light in the opening area a1, thereby reducing the loss of the opening ratio, and ensuring that the liquid crystal display panel has a larger opening ratio, thereby increasing the opening ratio of the liquid crystal display panel.
Fig. 6 is a schematic cross-sectional structural view of another array substrate according to an embodiment of the present invention, and referring to fig. 6, the array substrate further includes a pixel electrode 42, and the pixel electrode 42 is located on a side of the data line 22 away from the substrate 10. The data line 22 is located between the pixel electrode 42 and the substrate 10. The first heating electrode 31 and the pixel electrode 42 are insulated in the same layer, and the distance between the first heating electrode 31 and the pixel electrode 42 is greater than 0. The first heating electrode 31 overlaps the non-open area a2 in a direction perpendicular to the substrate 10, and the first heating electrode 31 is at least partially located in the non-open area a 2. In the embodiment of the present invention, the first heating electrode 31 is disposed on the film where the pixel electrode 42 is located, so that a new film does not need to be added to the first heating electrode 31, and the thicknesses of the array substrate and the liquid crystal display panel do not increase. The distance between the first heating electrode 31 and the liquid crystal layer is short, heat generated by the first heating electrode 31 can more easily and quickly reach the liquid crystal layer, so that the heating speed of liquid crystal molecules in the liquid crystal layer is increased, the liquid crystal molecules in the liquid crystal layer are quickly heated, liquid crystal crystallization is prevented, the response speed of the liquid crystal display panel at a low temperature is increased, and poor display of the liquid crystal display panel at a low temperature is solved. The first heating electrode 31 and the pixel electrode 42 are in the same layer and made of the same material, so that the first heating electrode 31 and the pixel electrode 42 can be formed simultaneously in the same process, and the process is saved. In other embodiments, the first heating electrode 31 and the pixel electrode 42 may be formed of different materials, and the first heating electrode 31 may be formed of an opaque metal material, for example. In the embodiment of the present invention, the first heating electrode 31 overlaps the non-opening area a2, the pixel electrode 42 overlaps the opening area a1, and the first heating electrode 31 and the pixel electrode 42 are disposed at the same layer and interval, so that the first heating electrode 31 is electrically insulated from the pixel electrode 42, and the first heating electrode 31 does not affect the electrical performance of the pixel electrode 42. The first heating electrode 31 overlaps the non-opening area a2, and the first heating electrode 31 does not shield the light in the opening area a1, so that the loss of the opening ratio is reduced, and the liquid crystal display panel has a larger opening ratio, thereby improving the opening ratio of the liquid crystal display panel.
Alternatively, with continued reference to fig. 1 and 2, the second heater electrode 32 and the data line 22 are made of the same material, and when the second heater electrode 32 and the data line 22 are in the same layer and made of the same material, the second heater electrode 32 and the data line 22 can be formed simultaneously in the same process, thereby saving the process. The second heating electrode 32 and the data line 22 can be made of metal material, and the metal material has good thermal conductivity, which is beneficial to timely conducting out the heat generated by the second electrode 32. In other embodiments, the second heating electrode 32 and the data line 22 may be formed of different materials, and the second heating electrode 32 is made of a transparent conductive material. The transparent conductive material may include, for example, a transparent metal oxide such as indium tin oxide. The resistance of the transparent conductive material is large, so that more heat can be generated at the same driving current.
Alternatively, with continued reference to fig. 1 and fig. 2, the same material is used for the first heating electrode 31 and the scanning line 21, and when the same material is used for the first heating electrode 31 and the scanning line 21 in the same layer, the first heating electrode 31 and the scanning line 21 may be formed simultaneously in the same process, which saves the process steps. The first heating electrode 31 and the scanning line 21 can be made of metal materials, and the metal materials have good thermal conductivity, so that heat generated by the first electrode 31 can be conducted out in time. In other embodiments, the first heating electrode 31 and the scan line 21 may be formed of different materials, and the first heating electrode 31 may be made of a transparent conductive material. The resistance of the transparent conductive material is large, so that more heat can be generated at the same driving current.
Fig. 7 is a schematic top view of another array substrate according to an embodiment of the present invention, fig. 8 is a schematic cross-sectional view taken along a direction CC' in fig. 7, and referring to fig. 7 and 8, a plurality of scan lines 21 and a plurality of data lines 22 intersect to define a plurality of display pixels Pixel, which include a first display Pixel column, a second display Pixel column and a third display Pixel column. The display Pixel includes an open area a1 and a non-open area a 2. The first display pixel column, the second display pixel column and the third display pixel column are sequentially arranged along the first direction. The first display pixel column, the second display pixel column and the third display pixel column all extend along the second direction. The first display pixel column includes a plurality of first display pixels P1 arranged in the second direction, the second display pixel column includes a plurality of second display pixels P2 arranged in the second direction, and the third display pixel column includes a plurality of third display pixels P3 arranged in the second direction. Any two of the first display pixel P1, the second display pixel P2, and the third display pixel P3 have different light emission colors. The vertical projection of the second heater electrode 32 on the substrate 10 is located between the vertical projection of the first display pixel P1 on the substrate 10 and the vertical projection of the third display pixel P3 on the substrate 10. In the embodiment of the invention, the second heating electrode 32 is not arranged between the first display pixel P1 and the second display pixel P2, the second heating electrode 32 is not arranged between the second display pixel P2 and the third display pixel P3, and the second heating electrode 32 is only arranged between the first display pixel P1 and the third display pixel P3, so that no second heating electrode 32 shields light between the first display pixel P1 and the second display pixel P2, and no second heating electrode 32 shields light between the second display pixel P2 and the third display pixel P3, thereby reducing aperture ratio loss, ensuring that the liquid crystal display panel has a larger aperture ratio, and further improving the aperture ratio of the liquid crystal display panel.
Illustratively, referring to fig. 7 and 8, the light emission color of the first display pixel P1 is red, the light emission color of the second display pixel P2 is green, and the light emission color of the third display pixel P3 is blue. The light emission colors of the first display pixel P1, the second display pixel P2, and the third display pixel P3 are light emission colors in regions where the first display pixel P1, the second display pixel P2, and the third display pixel P3 are located after the array substrate and the color filter substrate are assembled to form the liquid crystal display panel. Specifically, the first display pixel P1, the second display pixel P2, and the third display pixel P3 generate different colors due to the selective filtering of light by their respective color resistances. Since the human eye is most sensitive to green light (or green), red light, green light, and blue light of the same luminous intensity, the brightness of green light is greater than the brightness of red light and the brightness of blue light in the subjective perception of the user. Therefore, in the embodiment of the present invention, the second heating electrode 32 is not disposed between the first display pixel P1 and the second display pixel P2, the second heating electrode 32 is not disposed between the second display pixel P2 and the third display pixel P3, and the second heating electrode 32 is only disposed between the first display pixel P1 and the third display pixel P3, so that the second heating electrode 32 does not shield the green light emitted by the second display pixel P2, and the light loss of the green light is reduced, thereby improving the light emitting brightness of the liquid crystal display panel in the subjective feeling of the user.
Fig. 9 is a schematic top view of another array substrate according to an embodiment of the present invention, and fig. 10 is a schematic cross-sectional view along a direction DD' in fig. 9, referring to fig. 9 and 10, the array substrate further includes a touch electrode line 52 and a touch electrode 51. The touch electrode line 52 is located on the side of the data line 22 away from the substrate 10. The touch electrodes 51 are located on the side of the touch electrode lines 52 away from the substrate 10, and each touch electrode 51 is electrically connected to at least one touch electrode line 52. The first heater electrode 31 is located between the touch electrode line 52 and the touch electrode 51. The array substrate further comprises a third heating electrode 33, the third heating electrode 33 is electrically connected with the first heating electrode 31 in the same layer, the third heating electrode 33 and the first heating electrode 31 are both made of transparent conductive materials, and the third heating electrode 33 and the first heating electrode 31 can be formed simultaneously in the same process by adopting the same materials, so that the process is saved. In other embodiments, the third heating electrode 33 may also be made of a different transparent conductive material than the first heating electrode 31. The vertical projection of the third heater electrode 33 on the substrate 10 is located between the vertical projection of the first display pixel P1 on the substrate 10 and the vertical projection of the second display pixel P2 on the substrate 10, and/or the vertical projection of the third heater electrode 33 on the substrate 10 is located between the vertical projection of the second display pixel P2 on the substrate 10 and the vertical projection of the third display pixel P3 on the substrate 10. In the embodiment of the invention, the second heater electrode 32 is disposed between the first display pixel P1 and the third display pixel P3. Set up third heating electrode 33 between first display pixel P1 and second display pixel P2, and/or, set up third heating electrode 33 between second display pixel P2 and third display pixel P3, because third heating electrode 33 adopts transparent conducting material, thereby can not lead to the fact the sheltering from to light, avoid third heating electrode 33 to lead to the fact the influence to the aperture ratio, the aperture ratio loss has been avoided promptly, guarantee that the liquid crystal display panel has great aperture ratio, thereby the aperture ratio of liquid crystal display panel has been promoted consequently. In addition, along the first direction, since the heating electrodes (including the first heating electrode 31, the second heating electrode 32 and the third heating electrode 33) are arranged between any two adjacent display pixels Pixel, on the basis of improving the aperture ratio, the uniformity of heating the liquid crystal molecules in the liquid crystal display panel is also improved.
Fig. 11 is a schematic top view illustrating an array substrate according to another embodiment of the present invention, fig. 12 is a schematic cross-sectional view taken along direction EE' in fig. 11, referring to fig. 11 and 12, the array substrate further includes an auxiliary heating electrode 34, the auxiliary heating electrode 34 is electrically connected to the first heating electrode 31 at the same layer, and both the auxiliary heating electrode 34 and the first heating electrode 31 are made of transparent conductive materials. The auxiliary heating electrode 34 and the first heating electrode 31 can be formed simultaneously in the same process using the same material, thereby saving the process. In other embodiments, the auxiliary heating electrode 34 may also be made of a different transparent conductive material from the first heating electrode 31. The vertical projection of the auxiliary heating electrode 34 on the substrate 10 is located between two adjacent display pixels Pixel in the second direction. Among them, the display Pixel includes a first display Pixel P1, a second display Pixel P2, and a third display Pixel P3. The auxiliary heater electrode 34 is electrically connected to the second heater electrode 32 through a via hole. In the second direction, the via hole is located between two adjacent display pixels Pixel. In the embodiment of the invention, the array substrate further includes an auxiliary heating electrode 34, one end of the auxiliary heating electrode 34 is electrically connected to the first heating electrode 31, and the other end of the auxiliary heating electrode 34 is electrically connected to the second heating electrode 32 through a via hole, so that the via hole can be disposed in the gap between two adjacent display pixels Pixel along the second direction. Since the gap between two adjacent display pixels Pixel along the second direction is larger than the gap between two adjacent display pixels Pixel along the first direction, the via hole is arranged in the gap between two adjacent display pixels Pixel along the second direction, and the difficulty in arranging the via hole can be reduced.
Alternatively, referring to fig. 1 to 12, the first heater electrode 31 extends in a first direction, and the second heater electrode 32 extends in a second direction. In the embodiment of the present invention, the first heating electrodes 31 and the scanning lines 21 have the same extending direction, and the plurality of first heating electrodes 31 extend along the first direction and are arranged along the second direction, so that the first heating electrodes 31 and the scanning lines 21 can be formed in a similar patterning pattern, and the first heating electrodes 31 and the scanning lines 21 can be formed in the same or different patterning processes, thereby reducing the difficulty in manufacturing the first heating electrodes 31. The second heating electrodes 32 and the data lines 22 have the same extending direction, and the plurality of second heating electrodes 32 extend along the second direction and are arranged along the first direction, so that the second heating electrodes 32 and the data lines 22 can be formed under similar patterning patterns, and the second heating electrodes 32 and the data lines 22 can be formed in the same or different patterning processes, thereby reducing the manufacturing difficulty of the second heating electrodes 32. In other embodiments, the extending direction of the first heating electrode 31 may have a non-zero angle with the first direction, and the extending direction of the second heating electrode 32 may have a non-zero angle with the second direction.
Fig. 13 is a schematic top view of an array substrate according to another embodiment of the present invention, and referring to fig. 13, unlike fig. 11, a vertical projection of the auxiliary heating electrode 34 on the substrate 10 is disposed between a vertical projection of the first display pixel P1 on the substrate 10 and a vertical projection of the third display pixel P3 on the substrate 10. The auxiliary heating electrode 34 may overlap the second heating electrode 32 in a direction perpendicular to the substrate. And the auxiliary heating electrode 34 and the second heating electrode 32 both extend in the second direction. One end of the auxiliary heating electrode 34 is electrically connected to the first heating electrode 31, and the other end of the auxiliary heating electrode 34 is electrically connected to the second heating electrode 32 through a via hole.
Exemplarily, with continuing reference to fig. 1 and fig. 2, the array substrate further includes a common electrode 41 and a pixel electrode 42, and the common electrode 41 and the pixel electrode 42 are both located on a side of the data line 22 away from the substrate 10. The pixel electrode 42 is located on the side of the common electrode 41 away from the substrate 10. The pixel electrode 42 overlaps the opening area a1 in a direction perpendicular to the substrate 10. In the embodiment of the present invention, the common electrode 41 is a film layer on the whole surface. All the pixel electrodes 42 overlap the same common electrode 41 in a direction perpendicular to the substrate 10. In other embodiments, the array substrate may further include a plurality of common electrodes 41 arranged in an array, which is not limited in the present invention.
Illustratively, with continued reference to fig. 1 and 2, the first heating electrode 31 and the second heating electrode 32 are both located at the non-opening area a2, and the first heating electrode 31 and the second heating electrode 32 are electrically connected through a via hole at their overlapping positions. The via hole passes through the film layer between the scan line 21 and the data line 22.
Illustratively, with continued reference to fig. 3-5, the touch electrode 51 is multiplexed as the common electrode 41. The touch electrode line 52 is electrically connected to the touch electrode 51. In the display phase, a common voltage signal is applied to the touch electrode 51 through the touch electrode line 52. In the touch phase, a touch driving signal is applied to the touch electrode 51 through the touch electrode line 52, or a touch sensing signal generated by the touch electrode 51 is received through the touch electrode line 52. Illustratively, the touch electrode line 52 is used for transmitting a touch signal to the touch electrode 51. In the self-contained touch architecture, the touch electrode line 52 is used for transmitting a touch driving signal to the touch electrode 51, and a touch sensing signal generated by the touch electrode 51 is output to the driving chip through the touch electrode line 52, that is, the touch electrode line 52 is used for transmitting both the touch driving signal and the touch sensing signal. In the capacitive touch structure, the touch electrode lines 52 are used for transmitting touch driving signals to the touch electrodes 51.
Illustratively, with continued reference to fig. 3-5, the first heating electrode 31 overlaps the opening area a1 in a direction perpendicular to the substrate 10. The second heater electrode 32 is located at the non-open area A2, and the second heater electrode 32 overlaps the non-open area A2. The first heater electrode 31 and the second heater electrode 32 are electrically connected through a via hole at their overlapping positions. The via hole passes through the film layer between the data line 22 and the first heater electrode 31.
Exemplarily, with continued reference to fig. 6, the first heating electrode 31 and the second heating electrode 32 each overlap the non-opening area a2 in a direction perpendicular to the substrate 10. The first heating electrode 31 and the second heating electrode 32 are both located at the non-opening area a 2. The first heater electrode 31 and the second heater electrode 32 are electrically connected through a via hole at their overlapping positions. The via hole passes through the film layer between the pixel electrode 42 and the data line 22.
Illustratively, with continued reference to fig. 9 and 10, the first heating electrode 31 overlaps the open area a1, and the second heating electrode 32 and the third heating electrode 33 both overlap the non-open area a2, in a direction perpendicular to the substrate. The second heating electrode 32 and the third heating electrode 33 are located at the non-opening area a 2. The first heater electrode 31 and the third heater electrode 33 are in the same layer and electrically connected. The first heater electrode 31 and the second heater electrode 32 are electrically connected through a via hole at their overlapping positions. The via hole passes through the film layer between the first heater electrode 31 and the data line 22.
Fig. 14 is a schematic cross-sectional structure view of a display panel according to an embodiment of the present invention, and referring to fig. 14, the liquid crystal display panel includes the array substrate AR, the liquid crystal layer 80 and the color filter substrate CF in any of the embodiments, and the liquid crystal layer 80 is located between the array substrate AR and the color filter substrate CF. The liquid crystal display panel provided by the embodiment of the invention comprises the array substrate AR in the above embodiment, so that the plurality of first heating electrodes 31 and the plurality of second heating electrodes 32 are crossed to form a heating grid, thereby improving the uniformity of heating liquid crystal molecules in the liquid crystal layer 80. Further, the first heating electrode 31 and the second heating electrode 32 are electrically connected in different layers, so that wires do not need to be arranged on the first heating electrode 31 and the second heating electrode 32 which are electrically connected with each other, the number of wires for connecting the first heating electrode 31 and the second heating electrode 32 is reduced, and the first heating electrode 31 and the second heating electrode 32 are respectively arranged in different film layers due to the fact that the first heating electrode 31 and the second heating electrode 32 are respectively provided with different arrangement directions, and the difficulty in arranging the first heating electrode 31 and the second heating electrode 32 can be reduced.
Exemplarily, referring to fig. 14, the color filter substrate CF includes an opposite substrate 71, a black matrix 72, and a plurality of color resists 60. In the direction perpendicular to the counter substrate 71, the black matrix 72 and the color resist 60 are both located between the counter substrate 71 and the liquid crystal layer 80, and the black matrix 72 is located between the color resist 60 and the counter substrate 71. The plurality of color resistors 60 may include a red color resistor 61, a green color resistor 62, and a blue color resistor 63, the red color resistor 61 filtering light passing therethrough to red, the green color resistor 62 filtering light passing therethrough to green, and the blue color resistor 63 filtering light passing therethrough to blue. The opening area a1 overlaps with a gap between adjacent black matrices 72, and the non-opening area a2 overlaps with the black matrices 72, in a direction perpendicular to the counter substrate 71. The opening area a1 may be an area in the display area AA where the black matrix 72 is not disposed, and the non-opening area a2 may be an area in the display area AA where the black matrix 72 is disposed.
The embodiment of the invention also provides a display device. Fig. 15 is a schematic view of a display device according to an embodiment of the present invention, and referring to fig. 15, the display device includes any one of the liquid crystal display panels according to the embodiment of the present invention. The display device can be a mobile phone, a tablet computer, a vehicle-mounted display device, an intelligent wearable device and the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. An array substrate, comprising:
a substrate;
the scanning lines and the data lines are positioned on the same side of the substrate, the scanning 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 is crossed with the second direction;
first heating electrodes and second heating electrodes both located on the same side of the substrate as the scanning lines, the plurality of first heating electrodes being arranged in the second direction, and the plurality of second heating electrodes being arranged in the first direction;
the first heating electrode and the second heating electrode are different layers and are electrically connected through a through hole;
the scanning lines and the data lines are crossed to define a plurality of display pixels, and the display pixels comprise a first display pixel column, a second display pixel column and a third display pixel column; the first display pixel column, the second display pixel column and the third display pixel column are sequentially arranged along the first direction; the first display pixel column includes a plurality of first display pixels arranged along the second direction, the second display pixel column includes a plurality of second display pixels arranged along the second direction, and the third display pixel column includes a plurality of third display pixels arranged along the second direction; any two of the first display pixel, the second display pixel, and the third display pixel have different emission colors;
the vertical projection of the second heating electrode on the substrate is positioned between the vertical projection of the first display pixel on the substrate and the vertical projection of the third display pixel on the substrate;
the light emitting color of the first display pixel is red, the light emitting color of the second display pixel is green, and the light emitting color of the third display pixel is blue.
2. The array substrate of claim 1, further comprising a display area, wherein the display area comprises an open area and a non-open area;
the second heating electrode and the data line are arranged in an insulating mode on the same layer, the direction perpendicular to the substrate is perpendicular to the direction, and the second heating electrode is overlapped with the non-opening area.
3. The array substrate of claim 2, wherein the first heating electrode is disposed in a same layer as the scan line in an insulating manner, and is perpendicular to the substrate, and the first heating electrode overlaps the non-opening region.
4. The array substrate of claim 2, further comprising a touch electrode line and a touch electrode; the touch electrode wire is positioned on one side of the data wire, which is far away from the substrate; the touch electrodes are positioned on one side of the touch electrode wires away from the substrate, and each touch electrode is electrically connected with at least one touch electrode wire;
the first heating electrode is located between the touch electrode wire and the touch electrode.
5. The array substrate of claim 4, wherein the first heating electrode overlaps the open region in a direction perpendicular to the substrate; the first heating electrode is made of transparent conductive materials.
6. The array substrate of claim 2, further comprising a pixel electrode located on a side of the data line away from the substrate;
the first heating electrode and the pixel electrode are arranged in an insulating mode on the same layer, the direction perpendicular to the substrate is perpendicular to the direction, and the first heating electrode and the non-opening area are overlapped.
7. The array substrate of claim 2, wherein the second heating electrode is made of the same material as the data line, or the second heating electrode is made of a transparent conductive material.
8. The array substrate of claim 3 or 6, wherein the first heating electrode and the scan line are made of the same material, or the first heating electrode is made of a transparent conductive material.
9. The array substrate of claim 1, further comprising a touch electrode line and a touch electrode; the touch electrode wire is positioned on one side of the data wire, which is far away from the substrate; the touch electrodes are positioned on one side of the touch electrode wires away from the substrate, and each touch electrode is electrically connected with at least one touch electrode wire; the first heating electrode is positioned between the touch electrode wire and the touch electrode;
the first heating electrode is electrically connected with the second heating electrode in the same layer, and the first heating electrode and the second heating electrode are made of transparent conductive materials;
the vertical projection of the third heating electrode on the substrate is positioned between the vertical projection of the first display pixel on the substrate and the vertical projection of the second display pixel on the substrate, and/or the vertical projection of the third heating electrode on the substrate is positioned between the vertical projection of the second display pixel on the substrate and the vertical projection of the third display pixel on the substrate.
10. The array substrate of claim 1, further comprising a touch electrode line and a touch electrode; the touch electrode wire is positioned on one side of the data wire, which is far away from the substrate; the touch electrodes are positioned on one side of the touch electrode wires away from the substrate, and each touch electrode is electrically connected with at least one touch electrode wire; the first heating electrode is positioned between the touch electrode wire and the touch electrode;
the auxiliary heating electrode is electrically connected with the first heating electrode at the same layer and is made of transparent conductive materials;
the vertical projection of the auxiliary heating electrode on the substrate is positioned between the vertical projection of the first display pixel on the substrate and the vertical projection of the third display pixel on the substrate, or the vertical projection of the auxiliary heating electrode on the substrate is positioned between two adjacent display pixels in the second direction, wherein the display pixels comprise the first display pixel, the second display pixel and the third display pixel;
the auxiliary heating electrode is electrically connected with the second heating electrode through the through hole, and the through hole is positioned between two adjacent display pixels along the second direction.
11. The array substrate of claim 1, wherein the first heater electrode extends along the first direction and the second heater electrode extends along the second direction.
12. A liquid crystal display panel, comprising the array substrate of any one of claims 1 to 11, a liquid crystal layer and a color filter substrate, wherein the liquid crystal layer is located between the array substrate and the color filter substrate.
13. A display device comprising the liquid crystal display panel according to claim 12.
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| WO2024000374A1 (en) * | 2022-06-30 | 2024-01-04 | 京东方科技集团股份有限公司 | Display panel and display device |
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| CN103926726A (en) * | 2013-11-19 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel |
| WO2017185833A1 (en) * | 2016-04-29 | 2017-11-02 | 京东方科技集团股份有限公司 | Touch substrate and touch liquid crystal display panel |
| CN108761930A (en) * | 2018-05-18 | 2018-11-06 | 上海天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN109031813A (en) * | 2018-08-31 | 2018-12-18 | 上海天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN109387962A (en) * | 2018-12-19 | 2019-02-26 | 上海天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
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| CN103926726A (en) * | 2013-11-19 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel |
| WO2017185833A1 (en) * | 2016-04-29 | 2017-11-02 | 京东方科技集团股份有限公司 | Touch substrate and touch liquid crystal display panel |
| CN108761930A (en) * | 2018-05-18 | 2018-11-06 | 上海天马微电子有限公司 | Liquid crystal display panel and liquid crystal display device |
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