CN106952935B - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN106952935B CN106952935B CN201710122985.9A CN201710122985A CN106952935B CN 106952935 B CN106952935 B CN 106952935B CN 201710122985 A CN201710122985 A CN 201710122985A CN 106952935 B CN106952935 B CN 106952935B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/87—Arrangements for heating or cooling
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
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- Electroluminescent Light Sources (AREA)
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Abstract
The invention discloses a kind of display panel and display device, which includes: heating unit and temperature detecting unit；Wherein, temperature detecting unit is for detecting the temperature of the first heating region and the temperature in non-heated region, and will test result and be output to heating unit；Heating unit is located at the first heating region and for the testing result according to temperature detecting unit, heats to display panel.Due to the light emission luminance reduction as the temperature rises of the OLED luminescent device in organic light-emitting units, therefore the present invention is according to the non-heated region of temperature detecting unit detection and the temperature results of the first heating region, control heating unit heats the first heating region, so that the temperature of the first heating region on display panel close to one end of driving chip increases, so that the display brightness of the organic light-emitting units in the region reduces, to improve the homogeneity of the display brightness of display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the progress of Display technology, Organic Light Emitting Diode (OLED) is one of the hot spots in the research field of flat panel displays, and more Active Matrix Organic Light Emitting Diode (AMOLED) Display panels are coming into the market, and compared with the conventional Thin Film Transistor Liquid Crystal Display (TFT LCD), the AMOLED has faster response speed, higher contrast ratio and wider viewing angle.
Each pixel unit in the existing OLED display panel corresponds to one light emitting device, fig. 1 is a schematic structural diagram of an OLED light emitting device in the prior art, and as shown in fig. 1, the structure of each light emitting device mainly includes: a cathode layer, an electron injection layer, an electron transport layer, an organic light emitting layer, a hole transport layer, a hole injection layer and an anode layer; the light emitting device in the OLED display panel is driven by current to emit light, and because the cathode wire and the anode wire have resistance, the voltage drop on the wire is increased along with the increase of the transmission distance of the driving current on the wire, so that the potentials at the two ends of the light emitting device are influenced, the driving current in each area on the display panel is inconsistent, and finally the display brightness of the display panel is uneven. Fig. 2 is a schematic distribution diagram of nine-point uniformity test points of a display panel in the prior art, as shown in fig. 2, nine test points (Spot 1-Spot 9) uniformly distributed on the display panel are selected, the corresponding arrangement sequence is from bottom to top, from left to right (a driving chip is bound at the upper end of the display panel, and is not shown in fig. 2), and nine-point uniformity tests are performed on a plurality of display panels (the display panels are numbered as 1, 2, 3, and 4), as shown in fig. 3, fig. 3 is a graph of nine-point uniformity test results of the display panel in the prior art, and it can be found that the display brightness of one end of the display panel close to the end bound with the driving chip is higher; and along with keeping away from the one end of driver chip, because the loss of drive current transmission on the wire for drive current reduces gradually, and luminescent device's luminance is lower and lower, thereby makes to show that luminance is lower and lower along the direction of keeping away from driver chip on the display panel.
Therefore, how to improve the uniformity of the display brightness of the OLED display panel is an urgent technical problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem of uneven display brightness of an OLED display panel in the prior art.
An embodiment of the present invention provides a display panel, including: the driving circuit comprises an upper substrate, a lower substrate, at least one driving chip and a plurality of organic light-emitting units, wherein the upper substrate and the lower substrate are oppositely arranged, the driving chip is bound at one end of the lower substrate, and the plurality of organic light-emitting units are positioned on one side of the lower substrate, which faces the upper substrate, and are arranged in a matrix; further comprising: a heating unit and a temperature detection unit; wherein,
the side of the lower substrate facing away from the organic light emitting unit includes: a first heating area, a non-heating area and a binding area; the first heating area is adjacent to the binding area;
the first heating area and the non-heating area are both provided with one temperature detection unit; the temperature detection unit is used for detecting the temperature of the first heating area and the temperature of the non-heating area and outputting a detection result to the heating unit;
the heating unit is positioned in the first heating area and used for heating the display panel according to the detection result of the temperature detection unit;
the binding region is located at one end of the lower substrate and is used for binding the driving chip.
In a possible implementation manner, in the display panel provided by an embodiment of the present invention, the heating unit specifically includes: a determining subunit and a heating subunit; wherein,
the determining subunit is configured to, when determining, according to the detection result of the temperature detecting unit, that the temperature difference between the first heating area and the non-heating area is smaller than a first preset threshold, output a first control signal to the heating subunit; when the temperature difference between the first heating area and the non-heating area is determined to be larger than a second preset threshold value, outputting a second control signal to the heating subunit;
the heating subunit is used for heating the display panel when receiving the first control signal; stopping heating the display panel when the second control signal is received;
wherein the first preset threshold is greater than 0 and less than the second preset threshold; the temperature difference between the first heating area and the non-heating area is the temperature difference obtained by subtracting the temperature of the non-heating area from the temperature of the first heating area.
In a possible implementation manner, in the display panel provided in an embodiment of the present invention, the first preset threshold is 5 ℃, and the second preset threshold is 10 ℃.
In a possible implementation manner, the display panel provided in an embodiment of the present invention further includes: a heat insulating film layer;
the heat insulation film layer is located on one surface, deviating from the organic light emitting unit, of the lower substrate, and the heating unit and the temperature detection unit are located between the lower substrate and the heat insulation film layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the first heating area occupies a quarter of a total length of the lower substrate along the first direction; the first direction is on the plane of the lower substrate and along the direction perpendicular to the end of the binding region of the lower substrate.
In a possible implementation manner, the display panel provided in an embodiment of the present invention further includes: a second heating area:
the second heating area is located on one surface of the lower substrate, which is far away from the organic light emitting unit, and is located in two side end areas adjacent to the binding area.
In a possible implementation manner, in the display panel provided in an embodiment of the present invention, the two side end regions respectively occupy one fourth of a total length of the lower substrate along the second direction; the second direction is on the plane of the lower substrate and is along a direction parallel to the end of the binding region of the lower substrate.
In a possible implementation manner, in the display panel provided in an embodiment of the present invention, the temperature detecting units are respectively located in central regions of the heating region and the non-heating region.
In a possible implementation manner, in the display panel provided by the embodiment of the present invention, the temperature detection unit includes a temperature sensor.
The embodiment of the invention provides a display device which comprises the display panel provided by the embodiment of the invention.
The embodiment of the invention has the beneficial effects that:
an embodiment of the present invention provides a display panel and a display device, where the display panel includes: the driving circuit comprises an upper substrate, a lower substrate, at least one driving chip and a plurality of organic light-emitting units, wherein the upper substrate and the lower substrate are oppositely arranged, the driving chip is bound at one end of the lower substrate, and the plurality of organic light-emitting units are positioned on one side, facing the upper substrate, of the lower substrate and are arranged in a matrix; further comprising: a heating unit and a temperature detection unit; wherein, the one side that the infrabasal plate deviates from organic light emitting unit includes: a first heating area, a non-heating area and a binding area; the first heating area is adjacent to the binding area; the first heating area and the non-heating area are both provided with a temperature detection unit; the temperature detection unit is used for detecting the temperature of the first heating area and the temperature of the non-heating area and outputting a detection result to the heating unit; the heating unit is positioned in the first heating area and used for heating the display panel according to the detection result of the temperature detection unit; the binding region is located at one end of the lower substrate and is used for binding the driving chip.
Specifically, because the luminance of the OLED in the organic light emitting unit decreases with the increase of the temperature, the present invention sets the heating unit in the first heating region on the lower substrate near the end where the driving chip is bound, and controls the heating unit to heat the first heating region according to the temperature results of the non-heating region and the first heating region detected by the temperature detecting unit, so that the temperature of the first heating region on the display panel near the end where the driving chip is bound increases, and further the display luminance of the organic light emitting unit in the region decreases, thereby improving the uniformity of the display luminance of the display panel.
Drawings
FIG. 1 is a schematic diagram of a prior art OLED light emitting device;
FIG. 2 is a schematic diagram illustrating a distribution of nine uniformity test points of a display panel according to the prior art;
FIG. 3 is a graph illustrating nine-point uniformity test results of a prior art display panel;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic view of a region range of a first heating region provided in accordance with an embodiment of the present invention;
fig. 6 is a graph illustrating a change of luminous efficiency with temperature of a light emitting device according to an embodiment of the present invention;
fig. 7 is a graph illustrating a driving current of a light emitting device according to an embodiment of the present invention according to a temperature change at a fixed driving voltage;
FIG. 8 is a schematic view of the area range of the secondary heating zone according to the embodiment of the present invention.
Detailed Description
The following describes in detail specific embodiments of the display panel and the display device according to the embodiments of the present invention with reference to the accompanying drawings.
An embodiment of the present invention provides a display panel, as shown in fig. 4, where fig. 4 is a schematic structural diagram of the display panel provided in the embodiment of the present invention, and the display panel includes: the organic light emitting display comprises an upper substrate 01 and a lower substrate 02 which are oppositely arranged, at least one driving chip IC which is bound at one end of the lower substrate 02, and a plurality of organic light emitting units 03 which are arranged in a matrix and positioned at one side of the lower substrate 02 facing the upper substrate 01; further comprising: a heating unit 04 and a temperature detection unit 05; wherein,
as shown in fig. 5, fig. 5 is a schematic view of a region range of the first heating region according to an embodiment of the present invention, and a side of the lower substrate 02 facing away from the organic light emitting unit includes: a primary heating zone H1, a non-heating zone F, and a binding zone (not shown in FIG. 5); the primary heating area H1 is adjacent to the binding area;
as shown in fig. 4, the first heating area H1 and the non-heating area F are each provided with a temperature detection unit 05; the temperature detection unit 05 is configured to detect the temperature of the first heating area H1 and the temperature of the non-heating area F, and output a detection result to the heating unit 04; the heating unit 04 is located in the first heating region H1 and is configured to heat the display panel according to the detection result of the temperature detection unit 05; the binding region is located at one end of the lower substrate and is used for binding the driving chip IC.
In the display panel provided by the embodiment of the present invention, each organic light emitting unit includes an OLED light emitting device, as shown in fig. 6, fig. 6 is a graph illustrating a change of light emitting efficiency of the light emitting device according to the embodiment of the present invention along with a temperature change, a light emitting characteristic of the OLED light emitting device is related to a temperature, and as a temperature rises, carrier mobility increases, an operating voltage of the light emitting device decreases, and accordingly, a light emitting brightness also decreases. As shown in fig. 6, the light emitting device showed a decrease in light emission luminance of nearly 10% at a temperature increase of 10 ℃. Therefore, the display brightness of the local area of the OLED display panel can be reduced by increasing the temperature. Since the operating voltage of the OLED light emitting device decreases with increasing temperature, but the driving current of the OLED light emitting device increases with increasing temperature, as shown in fig. 7, fig. 7 is a schematic diagram illustrating a curve of the driving current of the light emitting device according to an embodiment of the present invention changing with temperature under a fixed driving voltage, where the fixed voltage is 6V, and light emitted by the OLED light emitting device includes three colors, i.e., red, green, and blue, so that decreasing the luminance of the light emitting device by increasing temperature does not affect the saturation curve of the TFT switch in the pixel driving circuit, i.e., does not affect the design of the entire driving circuit.
Therefore, according to the display panel provided by the embodiment of the present invention, the heating unit is disposed on the first heating region on the lower substrate, which is close to the end where the driving chip is bound, and the heating unit is controlled to heat the first heating region according to the temperature results of the non-heating region and the first heating region detected by the temperature detection unit, so that the temperature of the first heating region on the display panel, which is close to the end where the driving chip is bound, is increased, and further, the display brightness of the organic light emitting unit in the region is reduced, thereby improving the uniformity of the display brightness of the display panel.
In a specific implementation, in the display panel provided in an embodiment of the present invention, the heating unit may specifically include: a determining subunit and a heating subunit; wherein,
the determining subunit is used for outputting a first control signal to the heating subunit when determining that the temperature difference between the first heating area and the non-heating area is smaller than a first preset threshold value according to the detection result of the temperature detection unit; when the temperature difference between the first heating area and the non-heating area is larger than a second preset threshold value, outputting a second control signal to the heating subunit;
the heating subunit is used for heating the display panel when receiving the first control signal; stopping heating the display panel when the second control signal is received;
the first preset threshold is greater than 0 and smaller than the second preset threshold; the temperature difference between the first heating area and the non-heating area is the temperature difference obtained by subtracting the temperature of the non-heating area from the temperature of the first heating area.
Specifically, in the display panel provided by the embodiment of the present invention, the heating unit may complete the heating process on the local area of the display panel by determining the sub-unit and the heating sub-unit. When the determining subunit determines that the temperature difference between the first heating area and the non-heating area is smaller than a first preset threshold value, for example, 5 ℃ according to the detection result of the temperature detecting unit, a first control signal can be input to the heating subunit, and then the heating subunit heats the display panel; when the determining subunit determines that the temperature difference between the first heating area and the non-heating area is greater than a second preset threshold, for example, 10 ℃, according to the detection result of the temperature detecting unit, a second control signal may be input to the heating subunit, and the heating subunit stops heating the display panel. By the mode, the display panel can be locally heated within a preset range, the display brightness of the local area of the OLED display panel is reduced, and the uniformity of the display brightness of the display panel is improved.
In a specific implementation, the display panel provided in the embodiment of the present invention may further include: a heat insulating film layer; the heat insulation film layer is positioned on one surface of the lower substrate, which is far away from the organic light emitting unit, and the heating unit and the temperature detection unit are positioned between the lower substrate and the heat insulation film layer. Specifically, in the display panel provided in the embodiment of the present invention, a heat insulation film layer may be further added, and the heat insulation film layer covers the heating unit and the temperature detection unit, and is used to protect the heating unit and the temperature detection unit, reduce heat transfer, and reduce or avoid an influence of the heating unit on other portions of the OLED display panel.
In practical implementation, in the display panel provided in the embodiment of the present invention, as shown in fig. 5, the first heating area H1 occupies a quarter of the total length of the lower substrate 02 along the first direction; the first direction is on the plane of the lower substrate and along the direction perpendicular to the end of the binding region of the lower substrate. Specifically, in the display panel provided in the embodiment of the present invention, the range of the first heating area may be set to be a quarter of the total length of the substrate along the direction indicated by the arrow in fig. 5, and the first heating area is close to the bonding area. As can be known from nine-point uniformity tests of the display panel, the display brightness of the area where the three test points on the display panel are located, which is close to one end of the binding driving chip, is higher, the first heating area is arranged at one end of the display panel, which is close to the binding driving chip and occupies one fourth of the total length of the display panel, the three test points close to the end of the driving chip can be basically covered, the area is pertinently heated, the problem that the brightness of the area is higher can be effectively solved, and the brightness uniformity of the display panel is improved. In practical applications, the size of the first heating region can be flexibly adjusted according to the specification and the size of the display panel, which is not limited herein.
FIG. 8 is a schematic view of the area range of the secondary heating zone according to the embodiment of the present invention.
In specific implementation, in the display panel provided in the embodiment of the present invention, as shown in fig. 8, when the display panel is a large-size display panel, or when the three side ends of the display panel are all bonded with driving chips, the heating region may be expanded, and the second heating regions are disposed on two adjacent sides of the first heating region, that is, the display panel may further include: secondary heating zone H2: the second heating region H2 is located at both side end regions of the lower substrate 02 facing away from the organic light emitting cell and adjacent to the bonding region (not shown in fig. 8). Specifically, the two side end regions (i.e., the second heating regions) respectively occupy one fourth of the total length of the lower substrate along the second direction; as shown in fig. 8, the second direction (the direction indicated by the arrow in fig. 8) is on the plane of the lower substrate and is along the direction parallel to the end of the bonding region of the lower substrate. As can be known from nine-point uniformity tests of the display panel, the display brightness of the area where the three test points close to one end of the display panel bound with the driving chip are located is higher, and if the driving chips are bound to the three side ends of the display panel, the heating area can be expanded to the area of the three side ends to form the U-shaped heating area. The U-shaped heating area can solve the problem that the display brightness of the three side end areas is higher due to the bound driving chips; the lengths of the first heating area and the second heating area are set to be one fourth of the total length of the display panel, three test points close to one end of each driving chip can be basically covered, the area with high display brightness is heated in a targeted mode, the problem that the brightness of a local area is high can be effectively solved, and the brightness uniformity of the display panel is improved. Or when the display panel is a large-size display panel, the display panel has the same problem of high display brightness at one end close to the binding driving chip, and the same problem also occurs at two side ends adjacent to the one end, so that the second heating area can be added to improve the problem of high brightness of the local area and improve the brightness uniformity of the display panel. It should be noted that, in practical application, the first heating area and the second heating area may be selectively set according to actual needs, and the range of the heating area may also be correspondingly adjusted according to actual needs, which is not limited herein.
In a specific implementation, in the display panel provided in the embodiment of the present invention, the temperature detection unit for detecting the temperatures of the heating region and the non-heating region may be disposed in a central region of each region. Specifically, the temperature of the heating area and the center of the non-heating area is more accurate for the temperature representation of the respective area, and the temperature condition of the respective area can be represented, so that the temperature detection unit is arranged at the center of the respective area, and the detected temperature of the respective area can more represent the temperature level of the respective area, thereby providing a more accurate temperature detection result for the heating unit, so that the heating unit can correspondingly adjust the temperature of the heating area, and the display brightness uniformity of the display panel is improved. The temperature detection unit may include a temperature sensor for detecting the temperature of each region and converting the temperature into a corresponding data signal to be transmitted to the heating unit.
Based on the same inventive concept, an embodiment of the present invention provides a display device, including the display panel provided in the embodiment of the present invention. The display device can be applied to any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Since the principle of the display device to solve the problem is similar to that of the display panel, the display device can be implemented by the display panel, and repeated descriptions are omitted.
An embodiment of the present invention provides a display panel and a display device, where the display panel includes: the driving circuit comprises an upper substrate, a lower substrate, at least one driving chip and a plurality of organic light-emitting units, wherein the upper substrate and the lower substrate are oppositely arranged, the driving chip is bound at one end of the lower substrate, and the plurality of organic light-emitting units are positioned on one side, facing the upper substrate, of the lower substrate and are arranged in a matrix; further comprising: a heating unit and a temperature detection unit; wherein, the one side that the infrabasal plate deviates from organic light emitting unit includes: a first heating area, a non-heating area and a binding area; the first heating area is adjacent to the binding area; the first heating area and the non-heating area are both provided with a temperature detection unit; the temperature detection unit is used for detecting the temperature of the first heating area and the temperature of the non-heating area and outputting a detection result to the heating unit; the heating unit is positioned in the first heating area and used for heating the display panel according to the detection result of the temperature detection unit; the binding region is located at one end of the lower substrate and is used for binding the driving chip.
Specifically, because the luminance of the OLED in the organic light emitting unit decreases with the increase of the temperature, the present invention sets the heating unit in the first heating region on the lower substrate near the end where the driving chip is bound, and controls the heating unit to heat the first heating region according to the temperature results of the non-heating region and the first heating region detected by the temperature detecting unit, so that the temperature of the first heating region on the display panel near the end where the driving chip is bound increases, and further the display luminance of the organic light emitting unit in the region decreases, thereby improving the uniformity of the display luminance of the display panel.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A display panel, comprising: the driving circuit comprises an upper substrate, a lower substrate, at least one driving chip and a plurality of organic light-emitting units, wherein the upper substrate and the lower substrate are oppositely arranged, the driving chip is bound at one end of the lower substrate, and the plurality of organic light-emitting units are positioned on one side of the lower substrate, which faces the upper substrate, and are arranged in a matrix; it is characterized by also comprising: a heating unit and a temperature detection unit; wherein,
the side of the lower substrate facing away from the organic light emitting unit includes: a first heating area, a non-heating area and a binding area; the first heating area is adjacent to the binding area;
the first heating area and the non-heating area are both provided with one temperature detection unit; the temperature detection unit is used for detecting the temperature of the first heating area and the temperature of the non-heating area and outputting a detection result to the heating unit;
the heating unit is positioned in the first heating area and used for heating the display panel according to the detection result of the temperature detection unit;
the binding region is located at one end of the lower substrate and is used for binding the driving chip.
2. The display panel of claim 1, wherein the heating unit specifically comprises: a determining subunit and a heating subunit; wherein,
the determining subunit is configured to, when determining, according to the detection result of the temperature detecting unit, that the temperature difference between the first heating area and the non-heating area is smaller than a first preset threshold, output a first control signal to the heating subunit; when the temperature difference between the first heating area and the non-heating area is determined to be larger than a second preset threshold value, outputting a second control signal to the heating subunit;
the heating subunit is used for heating the display panel when receiving the first control signal; stopping heating the display panel when the second control signal is received;
wherein the first preset threshold is greater than 0 and less than the second preset threshold; the temperature difference between the first heating area and the non-heating area is the temperature difference obtained by subtracting the temperature of the non-heating area from the temperature of the first heating area.
3. The display panel of claim 2, wherein the first predetermined threshold is 5 ℃ and the second predetermined threshold is 10 ℃.
4. The display panel according to any one of claims 1 to 3, further comprising: a heat insulating film layer;
the heat insulation film layer is located on one surface, deviating from the organic light emitting unit, of the lower substrate, and the heating unit and the temperature detection unit are located between the lower substrate and the heat insulation film layer.
5. The display panel of claim 1, wherein the first heating area occupies one quarter of the total length of the lower substrate along the first direction; the first direction is on the plane of the lower substrate and along the direction perpendicular to the end of the binding region of the lower substrate.
6. The display panel of claim 1, wherein the driving chip is bonded to each of three side ends of the display panel, the display panel further comprising: a second heating area:
the second heating area is located on one surface of the lower substrate, which is far away from the organic light emitting unit, and is located in two side end areas adjacent to the binding area.
7. The display panel according to claim 6, wherein the two side end regions respectively occupy one quarter of the total length of the lower substrate along the second direction; the second direction is on the plane of the lower substrate and is along a direction parallel to the end of the binding region of the lower substrate.
8. The display panel according to claim 1, wherein the temperature detection unit is located in a central region of the heating region and the non-heating region, respectively.
9. The display panel according to claim 1, wherein the temperature detection unit includes a temperature sensor.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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Effective date of registration: 20211021 Address after: No.8 liufangyuan Road, Dongyi Industrial Park, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Address before: Room 509, building 1, 6111 Longdong Avenue, Pudong New Area, Shanghai 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |