CN114442357B - Display panel and display device - Google Patents
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- CN114442357B CN114442357B CN202111675361.2A CN202111675361A CN114442357B CN 114442357 B CN114442357 B CN 114442357B CN 202111675361 A CN202111675361 A CN 202111675361A CN 114442357 B CN114442357 B CN 114442357B
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- 238000010438 heat treatment Methods 0.000 claims abstract description 118
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 description 10
- 239000010408 film Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
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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
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application provides a display panel and a display device, wherein the display panel is provided with a regular display area and a special-shaped display area surrounding at least part of the regular display area, and the display panel comprises: the liquid crystal display comprises a first substrate, a second substrate, a liquid crystal layer and a first display element, wherein the second substrate is arranged opposite to the first substrate; the heating electrode is positioned between the first substrate and/or the second substrate and used for heating the liquid crystal layer, and comprises a first subsection positioned in the special-shaped display area and a second subsection positioned in the regular display area, wherein the area occupation ratio of the first subsection in the special-shaped display area is larger than the area occupation ratio of the second subsection in the regular display area, and the area occupation ratio is the surface area of the heating electrode arranged in the unit area of the display area. The area of the first subsection in the special-shaped display area is larger, so that the special-shaped display area located at the edge of the display panel can receive more heat, and the whole of the display panel is heated more uniformly.
Description
Technical Field
The present application relates to the field of display devices, and in particular, to a display panel and a display device.
Background
With the continuous development of display technology, the requirements of people on display devices are increasing. In some special fields of use of display devices, it is desirable that the display device can quickly meet the requirements for normal operation after the display device is started at a low temperature, i.e., the display device is required to quickly respond at a low temperature. However, the prior art has the problem of uneven temperature in the display device in low-temperature response.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which aim to solve the problem of uneven temperature in the display device in low-temperature response.
An embodiment of a first aspect of the present application provides a display panel having a regular display area and a shaped display area surrounding at least a portion of the regular display area, the display panel comprising: the liquid crystal display comprises a first substrate, a second substrate, a liquid crystal layer and a first display element, wherein the second substrate is arranged opposite to the first substrate; and the heating electrode is positioned on the first substrate and/or the second substrate and is used for heating the liquid crystal layer, and the heating electrode comprises a first subsection positioned in the special-shaped display area and a second subsection positioned in the regular display area, wherein the area occupation ratio of the first subsection in the special-shaped display area is larger than the area occupation ratio of the second subsection in the regular display area, and the area occupation ratio is the surface area of the heating electrode arranged in the unit area of the display area.
An embodiment of the second aspect of the present application further provides a display device, including the display panel described above.
In the display panel provided by the embodiment of the application, the display panel comprises the heating electrode which is positioned between the first substrate and the second substrate and is used for heating the liquid crystal layer. The heating electrode comprises two parts, wherein the first part is positioned in the special-shaped display area, and the second part is positioned in the regular display area. The special-shaped display area is positioned at the periphery of the regular display area, namely, the special-shaped display area is arranged close to the edge of the display panel. The area of the first subsection in the special-shaped display area is larger, so that the special-shaped display area located at the edge of the display panel can receive more heat, and the whole of the display panel is heated more uniformly. When the display panel is used for a display device, the problem of uneven temperature in the low-temperature response display device can be solved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings in which like or similar reference characters designate the same or similar features.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 taken along the direction C-C;
FIG. 3 is an enlarged schematic view of the area Q of FIG. 1;
FIG. 4 is an enlarged schematic view of the area M of FIG. 3 in one example;
FIG. 5 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 6 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 7 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 8 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 9 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 10 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 11 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 12 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 13 is an enlarged schematic view of the area M of FIG. 3 in another example;
FIG. 14 is a schematic top view of a display panel according to another embodiment of the present application;
FIG. 15 is a schematic cross-sectional view taken along line A-A' of FIG. 14;
FIG. 16 is a schematic cross-sectional view taken along line B-B' of FIG. 14;
fig. 17 is a schematic structural diagram of a display device according to an embodiment of the present application.
Reference numerals illustrate:
10. a display panel; 11. a first pixel opening region; 12. a first non-open region; 12a, a first section; 12b, a second section; 12c, a third section; 12d, fourth section; 13. a sub-pixel; 14. a virtual pixel region; 15. virtual subpixels; 17. a gate line; 16. a data line;
01. a first substrate; 02. a second substrate; 03. a liquid crystal layer; 03. liquid crystal particles; 031. a gate line layer; 55. a source/drain metal layer; 52. a pixel electrode layer; 56. a common electrode layer; 51. a thermally conductive insulating layer 09;
100. heating the electrode; 101. a first subsection; 110. a first heating electrode; 110a, a first wire segment; 110b, a second trace segment; 110c, a third wire segment; 110d, a fourth wire segment; 111. a main body portion; 112. a crossover section; 120. a second heating electrode; 130. edge routing; 140. extending the wiring; 141. a bending part; 142. a winding part; 102. a second subsection; 103. a third subsection;
AA. A display area; AA1, a regular display area; AA2, a special-shaped display area; l1, special-shaped edges; NA, non-display area;
x, a first direction; y, second direction.
Detailed Description
Features and exemplary embodiments of various aspects of the application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present application, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present application and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The directional terms appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the embodiment of the present application. In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.
With the continuous development of display technology, the requirements of people on display devices are increasing. In some special fields of use of display devices, it is desirable that the display device be able to quickly meet the requirements for normal operation, i.e., that the display device be able to quickly respond at low temperatures, after the display device is started at low temperatures. However, the prior art has the problem of uneven temperature in the display device in low-temperature response.
A rapid response of the display device at low temperatures can be achieved by adding heating electrodes in the display device. The heating electrode is usually arranged in the display area, and as the edge of the display area, especially the special-shaped edge of the display area, is closer to the edge of the display device, and the extension path of the special-shaped edge is long, the contact heat conduction between the edge of the display area and the outside is quick, the heat conduction of the special-shaped edge is faster, the temperature near the special-shaped edge of the display area is lower, the temperature near the center of the display area is higher, the temperature difference between different positions of the display area is larger, and the poor display of the display panel is easily caused.
The present application has been made to solve the above-mentioned problems. In order to better understand the present application, a display panel and a display device according to embodiments of the present application are described in detail below with reference to fig. 1 to 15.
As shown in fig. 1 and 2, an embodiment of the first aspect of the present application provides a display panel 10, the display panel 10 having a regular display area AA1 and a special-shaped display area AA2 surrounding at least a part of the regular display area AA1, the display panel 10 comprising: a first substrate 01, a second substrate 02, and a liquid crystal layer 03. The second substrate 02 is arranged opposite to the first substrate 01, and the liquid crystal layer 03 is positioned between the first substrate 01 and the second substrate 02; the heating electrode 100 is located on the first substrate 01 and is used for heating the liquid crystal layer 03; it should be noted that, in other embodiments, the heating electrode 100 may be located on the second substrate 02, or may be disposed on both the first substrate 01 and the second substrate 02, and the specific position of the heating electrode 100 is not limited absolutely in this embodiment; the heating electrode 100 comprises a first subsection 101 positioned in the special-shaped display area AA2 and a second subsection 102 positioned in the regular display area AA1, wherein the area occupation ratio of the first subsection 101 in the special-shaped display area AA2 is larger than that of the second subsection 102 in the regular display area AA1, and the area occupation ratio is the surface area of the heating electrode 100 arranged in the unit area of the display area AA.
The area ratio of the first subsection 101 in the special-shaped display area AA2 is the ratio of the area of the first subsection 101 to the area of the special-shaped display area AA2 in a unit area. The area ratio of the second division 102 in the regular display area AA1 is the ratio of the area of the second division 102 to the area of the regular display area AA1 in a unit area. In fig. 1, only the arrangement positions of the first section 101 and the second section 102 are schematically shown, the first section 101 may be in other shapes and located in other positions of the special-shaped display area AA2, and the second section 102 may be in other shapes and located in other positions of the regular display area AA1. As long as the first subsection 101 is located in the special-shaped display area AA2, the second subsection 102 is located in the regular display area AA1, and the area occupation ratio of the first subsection 101 in the special-shaped display area AA2 is larger than that of the second subsection 102 in the regular display area AA1, which belongs to the protection scope of the scheme.
In the display panel 10 provided in the embodiment of the present application, the display panel 10 includes the heating electrode 100 positioned between the first substrate 01 and the second substrate 02 for heating the liquid crystal layer 03. The heating electrode 100 includes two parts, a first part 101 is located in the abnormal display area AA2, and a second part 102 is located in the regular display area AA1. The special-shaped display area AA2 is located at the periphery of the regular display area AA1, that is, the special-shaped display area AA2 is located near the edge of the display panel 10, and the heat dissipation capacity of the special-shaped display area AA2 is greater than that of the regular display area AA1. The area occupation of the first subsection 101 in the special-shaped display area AA2 is relatively large, so that the special-shaped display area AA2 located at the edge of the display panel 10 can receive more heat, and the whole of the display panel 10 is heated more uniformly. When the display panel 10 is used for a display device, the problem of temperature unevenness in the low-temperature-responsive display device can be solved.
In the embodiment of the present application, the area ratio of the first subsection 101 in the special-shaped display area AA2 is larger than the area ratio of the second subsection 102 in the regular display area AA1, that is, the distribution area of the heating electrodes 100 in the special-shaped display area AA2 is larger, so that the heating electrodes 100 can provide more heat for the special-shaped display area AA2, the temperatures in the special-shaped display area AA2 and the regular display area AA1 are more balanced, and the overall heating of the display panel 10 is more uniform.
The regular display area AA1 may have various shapes, and alternatively, the regular display area AA1 may have a circular planar structure, a polygonal planar structure, or the like, for example, the regular display area AA1 may have a rectangular structure.
The shape of the special-shaped display area AA2 may also be various, such as polygonal, circular arc, circular ring, etc., for example, the special-shaped display area AA2 may extend along an arc-shaped bending path to be semi-circular or quarter-circular. Specifically, the position of the anisotropic display area AA2 may be located at the R angle, the groove, the chamfer angle, etc. of the display panel 10.
Alternatively, the regular display area AA1 and the irregular display area AA2 together constitute the entire display area AA of the display panel 10. In other embodiments, the display area AA of the display panel 10 may also include other areas capable of displaying.
Optionally, referring to fig. 2, the first substrate 01 further includes a heat conductive insulating layer 09, and the heat conductive insulating layer 09 is disposed between the heating electrode 100 and the liquid crystal layer 03, so as to prevent the display panel 10 from displaying dead spots caused by the heating electrode 100 directly heating the liquid crystal layer 03. In some embodiments, the first substrate 01 may be further provided with other film layers.
As shown in fig. 3, the regular display area AA1 is a rectangular structure with rounded corners, and the special-shaped display area AA2 is a part of a circular ring. In other embodiments, the regular display area AA1 and the irregular display area AA2 may have other shapes, as long as the irregular display area AA2 is disposed around at least a portion of the regular display area AA1, and the irregular display area AA2 is closer to the edge of the display panel 10.
In some alternative embodiments, as shown in fig. 1, 3 and 4, the shaped display area AA2 includes a plurality of first pixel opening areas 11 and a first non-opening area 12 at least partially surrounding the first pixel opening areas 11; the first subsection 101 includes a first heater electrode 110, the first heater electrode 110 extending within the first non-open region 12; wherein the size of the first heating electrode 110 has a tendency to become larger in a direction away from the regular display area AA1. Optionally, a light emitting component is disposed in the first pixel opening area 11 to implement light emitting display of the special-shaped display area AA 2.
In these alternative embodiments, the first heating electrode 110 is located in the first non-opening area 12, that is, the first heating electrode 110 is disposed offset from the first pixel opening area 11, and the arrangement of the first heating electrode 110 does not affect the normal light emitting display of the special-shaped display area AA 2. In the direction away from the regular display area AA1, the heat dissipation speed of the irregular display area AA2 and the outer edge of the display panel 10 is faster and faster, so that when the size of the first heating electrode 110 has a trend of becoming larger along the direction away from the regular display area AA1, the heating performance of the first heating electrode 110 has a trend of increasing along the direction away from the regular display area AA1, and the phenomenon of uneven temperature at the central position and the display edge in the display panel 10 can be better improved.
Optionally, the regular display area AA1 further includes a plurality of second pixel openings (not shown) and a second non-opening area (not shown) at least partially surrounding the second pixel opening area, where the second subsection 102 is located, so as not to affect the display of the regular display area AA1 by the second subsection 102.
Alternatively, as shown in fig. 1, 3 and 4, a plurality of first pixel opening areas 11 are distributed in an array along the first direction X and the second direction Y. The direction away from the regular display area AA1 may be away from the regular display area AA1 in the first direction X or away from the regular display area AA1 in the second direction Y; that is, the first heating electrode 110 distant from the regular display area AA1 in the first direction X and/or the second direction Y may be provided to have a tendency to be larger, and the size herein may refer to a width intersecting the extending direction of the first heating electrode 110.
Specifically, alternatively, when the edge of the regular display area AA1 adjacent to the first heating electrode 110 is a straight line type, the direction away from the regular display area AA1 is perpendicular to the edge of the regular display area AA1. When the edge of the regular display area AA1 adjacent to the first heating electrode 110 is arc-shaped, the direction away from the regular display area AA1 is perpendicular to a tangent line at any position of the edge of the regular display area AA1.
In some alternative embodiments, as shown in fig. 1, 3 and 5, the width of the first non-opening area 12 between two adjacent first pixel opening areas 11 has a tendency to increase in a direction away from the regular display area AA1, and the width of the first heating electrode 110 increases with an increase in the width of the first non-opening area 12 at the corresponding position.
In these alternative embodiments, the width of the first non-opening area 12 between two adjacent first pixel opening areas 11 has a tendency to increase in a direction away from the regular display area AA1, while the size of at least one of the first pixel opening areas 11 has a tendency to decrease, so that the jagged display effect of the edges of the special-shaped display area AA2 can be improved. In addition, the width of the first non-opening region 12 between two adjacent first pixel opening regions 11 has a tendency to increase, so that a sufficient space can be left for the arrangement of the first heating electrodes 110, and a larger surface area of the first heating electrodes 110 can be placed. Alternatively, the width of the first non-opening region 12 may be the width of the first non-opening region 12 in the first direction X and/or the second direction Y.
Specifically, with continued reference to fig. 1, 3 and 5, the first non-opening area 12 includes a first section 12a and a second section 12b extending in the first direction X and adjacent to each other, the first section 12a is located on a side of the second section 12b away from the regular display area AA1, and the width of the first section 12a is greater than that of the second section 12b; the first heating electrode 110 includes a first line segment 110a and a second line segment 110b extending along the first direction X and connected to each other, the first line segment 110a is located in the first section 12a, the second line segment 110b is located in the second section 12b, and the line width of the first line segment 110a is greater than that of the second line segment 110b.
The width direction is the second direction Y, and then the width of the first section 12a refers to the extension of the first section 12a in the second direction Y, and the width of the second section 12b refers to the extension of the second section 12b in the second direction Y. The width of the first line segment 110a refers to the extension dimension of the first line segment 110a in the second direction Y, and the width of the second line segment 110b refers to the extension dimension of the second line segment 110b in the second direction Y.
In these alternative embodiments, the first non-open area 12 includes a first section 12a and a second section 12b that are sequentially distributed in the first direction X with different widths. Correspondingly, the first heating electrode 110 includes a first line segment 110a and a second line segment 110b with different widths sequentially distributed in the first direction X, so that the shape of the first subsection 101 is more adapted to the shape of the first non-opening area 12, and the distribution area of the first subsection 101 in the special-shaped display area AA2 is further improved.
Alternatively, the number of the first and second sections 12a and 12b may be one or more, as long as the first heating electrode 110 includes a plurality of sections distributed in the first direction X and having different widths.
In some alternative embodiments, as shown in fig. 1, 3 and 6, the first subsection 101 further includes a second heating electrode 120, and the first heating electrodes 110 located at opposite sides of the first pixel opening area 11 are communicated with each other through the second heating electrode 120. By adding the second heating electrode 120, the distribution area and the distribution uniformity of the first section 101 in the special-shaped display area AA2 can be further improved, the heating effect of the first section 101 can be further improved, and the temperature unevenness of the display panel 10 can be better improved.
Alternatively, as shown in fig. 6, the first direction X is a row direction and the second direction Y is a column direction. When the first heating electrode 110 extends in the first direction X and is located between two adjacent rows of the first pixel opening regions 11, the second heating electrode 120 may extend in the second direction Y to connect the two first heating electrodes 110 arranged in the second direction Y.
It should be noted that, in other embodiments, when the first heating electrode 110 is formed to extend along the second direction Y and is located between two adjacent rows of the first pixel opening regions 11, the second heating electrode 120 may be formed to extend along the first direction X to connect the two first heating electrodes 110 arranged in the first direction X. Therefore, the embodiment of the present application does not have an absolute limitation on the extending directions of the first heating electrode 110 and the second heating electrode 120, so long as the design of enabling the first heating electrode 110 and the second heating electrode 120 to communicate with each other in a crossing manner is understood to be included in the scope of the present application.
Alternatively, as shown in fig. 7, the two first heating electrodes 110 connected through the second heating electrode 120 may be sequentially distributed in the first direction X, that is, the two first heating electrodes 110 connected through the second heating electrode 120 are respectively located at opposite sides of the same row of the first pixel opening area 11, and the plurality of first heating electrodes 110 and the plurality of second heating electrodes 120 are connected to form a shape that generally takes on an "S" shape and extends along the first direction X. Alternatively, the first heating electrodes 110 and the second heating electrodes 120 are alternately arranged.
In some alternative embodiments, referring to fig. 1, 3 and 8, the first non-opening area 12 further includes a third section 12c and a fourth section 12d extending along a second direction Y, the third section 12c being located at a side of the fourth section 12d away from the regular display area AA1, the second direction Y intersecting the first direction X, the width of the third section 12c being greater than the width of the fourth section 12d, the third section 12c, the fourth section 12d, the first section 12a and the second section 12b being in communication with each other; the first heating electrode 110 includes a third line segment 110c and a fourth line segment 110d extending along the second direction Y and intersecting each other, the third line segment 110c is located in the third section 12c, the fourth line segment 110d is located in the fourth section 12d, the third line segment 110c has a width larger than that of the fourth line segment 110d, and the third line segment 110c or the fourth line segment 110d is in communication with the first line segment 110a or the second line segment 110b.
In these alternative embodiments, the first non-opening region 12 includes a third section 12c and a fourth section 12d of different widths distributed sequentially in the second direction Y. Correspondingly, the third line segment 110c and the fourth line segment 110d with different widths of the first heating electrode 110 are sequentially distributed in the second direction Y, so that the shape of the first subsection 101 is more adapted to the shape of the first non-opening area 12, and the distribution area of the first subsection 101 in the special-shaped display area AA2 and the regional adjustment optimization of the heating effect are further improved.
Alternatively, the number of the third sections 12c and the fourth sections may be one or more, only if the first heating electrode 110 includes a plurality of sections distributed in the second direction Y and having different widths.
In addition, the first heating electrode 110 includes both the first line segment 110a and the second line segment 110b and the third line segment 110c and the fourth line segment 110d, so that the shape of the first heating electrode 110 is more adapted to the shape of the first non-opening area 12, and the distribution area of the first subsection 101 in the special-shaped display area AA2 is further improved. The third line segment 110c or the fourth line segment 110d communicates with the first line segment 110a or the second line segment 110b. The third and fourth line segments 110c and 110d are more densely connected with the first and second line segments 110a and 110b, which essentially improves the distribution area of the first section 101 in the special-shaped display area AA 2.
Optionally, when the first heating electrode 110 includes both the first line segment 110a and the second line segment 110b and includes the third line segment 110c and the fourth line segment 110d, the first heating electrode 110 may be in a grid shape and have a hollowed-out portion, and the first pixel opening area 11 is correspondingly located in the hollowed-out portion. The first line segment 110a, the second line segment 110b, the third line segment 110c, and the fourth line segment 110d are mutually cross-connected and enclosed to form a grid. Referring to fig. 3 and 8 together, the width of the grid-like edge tends to increase along the direction away from the regular display area AA1, the size of the hollowed-out portion of the first heating electrode 110 tends to decrease, and the area of the first pixel opening area 11 tends to decrease.
In some alternative embodiments, referring to fig. 1, 3 and 9, the width of the first heating electrode 110 has a decreasing tendency in the direction in which the shaped display area AA2 points to the regular display area AA1; the plurality of first heating electrodes 110 are arranged along a direction intersecting with the extending direction of the single first heating electrode 110. Specifically, when the first heating electrode 110 extends in the first direction X, the plurality of first heating electrodes 110 are arranged in the second direction Y; conversely, when the first heating electrode 110 extends along the second direction Y, the plurality of first heating electrodes 110 are arranged along the second direction X; the first direction X and the second direction Y intersect, and more specifically may be perpendicular.
Further alternatively, in a direction in which the irregular display region AA2 is directed to the regular display region AA1, the width between the plurality of first heating electrodes 110 arranged in the direction may also be set to a gradually decreasing trend; that is, not only the single first heating electrode 110 extending in the direction satisfies the tendency of gradually decreasing in width, but also between the plurality of first heating electrodes 110 arranged in the direction may satisfy the tendency of gradually decreasing in width. So set up, let the heating gradual change effect more even, can realize that display panel 10 heats the effect more even, let the heating gradual change effect more even
In other alternative embodiments, as shown in fig. 2, 3 and 10, the first heating electrode 110 includes a cross-coupled body portion 111 and a cross section 112, the body portion 111 being formed to extend in a second direction Y intersecting the first direction X, the cross section 112 being coupled to the body portion 111 and located on at least one side of the body portion 111 in the first direction X.
In these alternative embodiments, the position of the intersecting section 112 may be set according to the size of the first opening region, and the area of the first heating electrode 110 may be increased by adding the intersecting section 112, thereby improving the heat generating capacity of the first heating electrode 110.
In other embodiments, the length direction of the main body 111 may also be the first direction X; the intersecting section 112 is connected to the main body portion 111 and is located on at least one side of the main body portion 111 in the second direction Y. . The embodiment of the present application is illustrated with the longitudinal direction of the main body 111 as the second direction Y. When the main body 111 is formed by extending in the second direction Y, the intersecting section 112 is located on at least one side of the main body 111 in the second direction Y.
Alternatively, the plurality of intersecting sections 112 are disposed on two sides of the main body 111, and the intersecting sections 112 are symmetrically disposed on two sides of the main body 111, so that the heat generated by the first heating electrode 110 is more uniform.
The included angle between the cross section 112 and the main body 111 may be set in various ways, and the cross section 112 and the main body 111 may be set perpendicular to each other. Or the angle between the intersection 112 and the body 111 is at an acute angle.
In some alternative embodiments, as shown in fig. 3 and 11, the first pixel opening area 11 has a dark domain aa, and in general, the dark domain aa cannot be displayed normally; the first heating electrode 110 overlaps with the projection of the dark domain aa in the direction perpendicular to the display panel 10. That is, at least part of the first heating electrode 110 is located in the dark domain AA, that is, at least part of the first heating electrode 110 is located in the first pixel opening area 11, so that the heating effect of the special-shaped display area AA2 can be improved by using the space of the dark domain AA.
In some alternative embodiments, as shown in fig. 2, 3, 12 and 13, the side of the irregular display area AA2 away from the regular display area AA1 has an irregular edge L1, and the first subsection 101 includes an edge trace 130 extending along at least a portion of the direction in which the irregular edge L1 extends, and an extension trace 140 led from the edge trace 130 and extending in a direction proximate to the regular display area AA1. By providing the edge track 130 near the profiled edge L1, the first subsection 101 is enabled to better adapt to the outer contour of the profiled region. Providing the extension trace 140 on the shaped edge L1 can further increase the distribution area of the first subsection 101 near the shaped edge L1, and better improve the temperature non-uniformity of the display panel 10.
Alternatively, the edge trace 130 may extend along the extending direction of the shaped edge L1. The extending direction of the shaped edge L1 refers to the direction in which the starting point of the shaped edge L1 points to the ending point thereof. As shown in fig. 12, the edge trace 130 extends along the extending direction from the start point to the end point of the shaped edge L1 and is offset from the first pixel opening area 11. Alternatively, as in fig. 12, the edge trace 130 extends along the same path as the shaped edge L1.
The extending wires 140 are disposed in various manners, for example, the extending wires 140 are disposed at intervals along the extending direction of the edge wire 130. The extension trace 140 may extend to the first non-open region 12 such that the extension trace 140 can fit into the first non-open region 12.
In some alternative embodiments, as shown in fig. 13, the extension trace 140 includes a bending portion 141 bent along a predetermined angle, and/or a winding portion 142 wound around a predetermined center, so that at least a portion of the first subsection 101 fills the inside of the shaped display area AA 2. The extension trace 140 can be adapted to the first non-opening area 12 with different shapes, so as to increase the distribution area of the first subsection 101 in the special-shaped display area AA2, and the extension trace 140 can avoid the first pixel opening area 11.
In some alternative embodiments, as shown in fig. 2, the display panel 10 further includes a non-display area NA disposed around at least a portion of the display area AA. The non-display area NA includes a metal layer M, and the heating electrode 100 includes a third segment 103 located in the non-display area NA; the metal layer M may be at least partially multiplexed into the third subsection 103 of the heater electrode 100.
Specifically, the non-display area NA is located on the side of the irregular display area AA2 facing away from the regular display area AA1. In the embodiment of the present application, the third subsection 103 can heat the non-display area NA, so as to reduce the heat conduction between the special-shaped display area AA2 and the non-display area NA, and improve the disadvantage of fast heat dissipation of the special-shaped display area AA 2. It should be noted that, the present application does not provide any absolute arrangement of the film layer and the number of the metal layers M in the non-display area NA, and of course, any metal layer M that satisfies the requirement of the reusable relationship or the same film layer arrangement may be used as the third distribution 103 of the heating electrode 100.
Further alternatively, referring to fig. 14 and 15, the display panel 10 includes an array substrate 01, a color film substrate 02, and a liquid crystal layer 03 between the array substrate 01 and the color film substrate 02; a plurality of rows of gate lines 17 and columns of data lines 16 intersecting each other are disposed on the array substrate 01, a plurality of sub-pixels 13 defined by the intersection of the rows of gate lines 17 and columns of data lines 16, and a thin film transistor 21 (including a gate electrode 55, a source electrode 52, and a drain electrode 53), a pixel electrode 56, and a common electrode 51 are disposed in at least one sub-pixel 13. A gate electrode 55 of each thin film transistor 21 is connected to one gate line 17, a source electrode 52 is connected to one data line 16, and a drain electrode 53 is connected to one pixel electrode 56. The data voltage signal is transmitted to the thin film transistor 21 electrically connected thereto through the data line 16 under the control of the corresponding gate line 17, and is transmitted to the pixel electrode 56 via the thin film transistor 21. In the liquid crystal display panel, the common electrode 51 receives a common voltage signal (typically a constant voltage signal) during a display period, and an electric field is formed between the pixel electrode 56 and the common electrode 51 to control the rotation of the liquid crystal molecules in the liquid crystal layer 43, thereby achieving a display function.
As described above, the array substrate 01 generally includes the metal material layers such as the gate line layer 55, the source/drain metal layer 52, the semiconductor layer 54, the pixel electrode layer 56, and the common electrode layer 51. The metal layer M may be co-layer with at least one of the gate line layer 55, the source/drain metal layer 52, the pixel electrode layer 56, and the common electrode layer 51.
In some alternative embodiments, as shown in fig. 14 and 16, the non-display area NA includes a virtual pixel area 14, the virtual pixel area 14 includes a plurality of virtual sub-pixels 15, and the virtual sub-pixels 15 cannot receive signals for driving the liquid crystal panel to display, so that the virtual sub-pixels 15 cannot perform normal display; alternatively, as shown in fig. 16, the dummy sub-pixel 15 may have the same film structure as the sub-pixel 13 of the display area AA, so long as the signal blocking is guaranteed, for example, the pixel electrode 56 and the drain electrode 53 in the dummy sub-pixel 15 are not electrically connected by punching, and the data driving voltage cannot be supplied to the pixel electrode 56; of course, in other embodiments, the partial film structure of the sub-pixel 13 of the display area AA can be reserved in the virtual sub-pixel 15, for example, the semiconductor layer, the gate layer, etc. of the normal sub-pixel are removed, so the film structure of the virtual sub-pixel 15 is not limited in the present application. Specifically, when the dummy pixel region 14 includes at least one of the gate line layer 55, the source/drain metal layer 52, the pixel electrode layer 56, and the common electrode layer 51, multiplexing of at least a portion of at least one of the gate line layer 55, the source/drain metal layer 52, the pixel electrode layer 56, and the common electrode layer 51 may be utilized as the third division 103. As shown in fig. 16, the third division 103 may be multiplexed with the gate line layer 04. In other embodiments, at least one of the source/drain metal layer 52, the semiconductor layer 54, the pixel electrode layer 56, and the common electrode layer 51 may be multiplexed into the third division 103.
It should be noted that, in other embodiments, when the display panel 10 includes a touch trace layer, the third portion may also be prepared by using the touch trace layer; therefore, the third section 103 of the heating electrode that can be reused as the non-display area NA is not absolutely limited by the present application, so long as there is a metal layer that can satisfy the reuse function, which falls within the scope of the inventive concept.
In these alternative embodiments, by multiplexing at least one of the source/drain metal layer 52, the pixel electrode layer 56, and the common electrode layer 51 of the non-display area NA as the third division 103, the arrangement of the third division 103 can be simplified, and the process implementation is cheaper and simpler.
In some alternative embodiments, the third section 103, located in the non-display area NA, comprises two branches arranged in parallel and electrically connected. By arranging a plurality of third sections 103, the heating capacity of the third sections 103 in the non-display area NA can be improved, and the heat dissipation speed of the special-shaped display area AA2 can be further reduced.
Referring to fig. 17, an embodiment of the second aspect of the present application further provides a display device, including the display panel 10 according to any one of the above embodiments. Since the display device according to the second embodiment of the present application includes the display panel 10 according to any one of the first embodiment, the display device according to the second embodiment of the present application has the advantages of the display panel 10 according to any one of the first embodiment, and is not described herein.
The display device in the embodiment of the application comprises, but is not limited to, a mobile phone, a personal digital assistant (Personal Digital Assistant, abbreviated as PDA), a tablet computer, an electronic book, a television, an access control, a smart phone, a console and other devices with display functions.
While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (14)
1. A display panel comprising a regular display area and a shaped display area surrounding at least a portion of the regular display area, the display panel further comprising:
a first substrate having a first surface and a second surface,
a second substrate arranged opposite to the first substrate,
a liquid crystal layer between the first substrate and the second substrate;
the heating electrode is positioned on the first substrate and/or the second substrate and is used for heating the liquid crystal layer, the heating electrode comprises a first subsection positioned in the special-shaped display area and a second subsection positioned in the regular display area, wherein,
the area occupation ratio of the first subsection in the special-shaped display area is larger than that of the second subsection in the regular display area, and the area occupation ratio is the surface area of the heating electrode arranged in the unit area of the display area;
the special-shaped display area comprises a plurality of first pixel opening areas and a first non-opening area at least partially surrounding the first pixel opening areas;
the first subsection including a first heater electrode extending within the first non-open region; wherein,
the first heating electrode has a tendency to become larger in size in a direction away from the regular display area.
2. The display panel according to claim 1, wherein the widths of the first non-opening regions between two adjacent first pixel opening regions have a tendency to increase in a direction away from the regular display region, and the widths of the first heating electrodes increase with an increase in the widths of the first non-opening regions at the corresponding positions.
3. The display panel of claim 1, wherein the first subsection further comprises:
and the second heating electrodes are positioned on two opposite sides of the first pixel opening area, and the first heating electrodes are communicated with each other through the second heating electrodes.
4. The display panel of claim 1, wherein the display panel comprises,
the first non-opening area comprises a first section and a second section which extend in a first direction and are adjacent to each other, the first section is positioned on one side of the second section away from the regular display area, and the width of the first section is larger than that of the second section;
the first heating electrode comprises a first line segment and a second line segment which extend along the first direction and are connected with each other, the first line segment is located in the first section, the second line segment is located in the second section, and the line width of the first line segment is larger than that of the second line segment.
5. The display panel of claim 4, wherein the first non-opening area further comprises a third section and a fourth section extending in a second direction, the third section being located on a side of the fourth section remote from the regular display area, the second direction intersecting the first direction, the third section having a width greater than a width of the fourth section, the third section, the fourth section, the first section, and the second section being in communication with one another;
the first heating electrode comprises a third line segment and a fourth line segment which extend along the second direction and intersect with each other, the third line segment is located in the third section, the fourth line segment is located in the fourth section, the width of the third line segment is larger than that of the fourth line segment, and the third line segment or the fourth line segment is communicated with the first line segment or the second line segment.
6. The display panel according to claim 1, wherein a plurality of the first heating electrodes are arranged at intervals in the first direction and have a tendency to decrease in size; the first direction is the direction in which the special-shaped display area points to the regular display area.
7. The display panel according to claim 6, wherein the first heating electrode includes a main body portion formed to extend in a second direction intersecting the first direction, and a crossing section connected to the main body portion and located on at least one side of the main body portion in the first direction.
8. The display panel of claim 7, wherein a plurality of the intersecting segments are symmetrically disposed on both sides of the main body portion.
9. The display panel according to claim 1, wherein the first pixel opening area has a dark domain area therein, and the first heating electrode overlaps with a projection of the dark domain area in a direction perpendicular to the display panel.
10. The display panel of claim 1, wherein a side of the shaped display area remote from the regular display area has a shaped edge, and the first subsection includes an edge trace extending along at least a direction in which the shaped edge extends, and an extension trace led from the edge trace and extending in a direction proximate to the regular display area.
11. The display panel according to claim 10, wherein the extension trace comprises a bent portion bent at a predetermined angle and/or a wound portion wound around a predetermined center such that at least a portion of the first portion fills the inside of the special-shaped display area.
12. The display panel of claim 1, further comprising:
a non-display area surrounding at least a portion of the display area;
the display area is provided with a plurality of gate lines, a plurality of data lines and a plurality of sub-pixels defined by the crossing of the gate lines and the data lines;
the non-display area comprises a virtual pixel area, the virtual pixel area comprises a plurality of virtual sub-pixels, and the virtual pixel area comprises at least one of a gate line layer, a source/drain metal layer, a pixel electrode layer, a common electrode layer and a touch control wiring layer;
the heating electrode further comprises a third subsection positioned in the non-display area; at least one of the gate line layer, the source/drain metal layer, the pixel electrode layer, the common electrode layer, and the touch wiring layer is multiplexed to the third subsection.
13. The display panel of claim 12, wherein the third section in the non-display area comprises two legs disposed in parallel and electrically connected.
14. A display device comprising the display panel according to any one of claims 1 to 13.
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| CN114967204B (en) * | 2022-05-31 | 2024-02-20 | 厦门天马微电子有限公司 | Display panel and display device |
| CN115167024B (en) | 2022-07-01 | 2023-10-17 | Tcl华星光电技术有限公司 | Liquid crystal display device and temperature control method thereof |
| CN116300181A (en) | 2023-04-12 | 2023-06-23 | 上海天马微电子有限公司 | Display panel and display device |
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