Color filter substrate, display panel and display device

By introducing a thermosensitive conductive layer and conductive blocks into the color filter substrate, temperature monitoring and heating of the liquid crystal display are realized, solving the problem of slow liquid crystal response speed, improving display speed and stability, and supporting touch function.

CN119414637BActive Publication Date: 2025-10-28CHANGSHA HKC OPTOELECTRONICS CO LTD +1
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Patent Information

Application Number
CN202411545441.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-10-28
Estimated Expiration
2044-10-31

AI Technical Summary

Technical Problem

Existing LCD monitors have poor liquid crystal response speeds, especially at low temperatures where ghosting is severe, affecting display quality.

Method used

A thermistor conductive layer is introduced into the color filter substrate to form multiple leads and multiple conductive blocks. At least one conductive block is used as a temperature sensing element or heating electrode. Temperature monitoring and liquid crystal heating are realized through time-division multiplexing, thereby improving display speed and stability.

Benefits of technology

Heating the liquid crystal at low temperatures improves the response speed and display quality of the display panel, and enables integrated touch display to meet the needs of intelligent systems.

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Abstract

This application provides a color filter substrate, a display panel, and a display device. In this embodiment, a thermistor-conductive layer is disposed in the color filter substrate, and the conductive blocks in the thermistor-conductive layer serve as temperature sensing elements, enabling temperature monitoring of the display panel. Secondly, a common electrode layer is electrically connected to the conductive blocks or leads in the thermistor-conductive layer, allowing it to be reused as a heating electrode. This enables heating of the liquid crystal in low-temperature environments, improving the display speed and quality of the display panel, and increasing its stability and reliability. Furthermore, when the conductive blocks serve as touch electrodes, integrated touch and display functionality can be achieved, meeting the user's intelligent needs.
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Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a color filter substrate, a display panel, and a display device. Background Technology

[0002] Most liquid crystal displays (LCDs) are backlit LCDs, which consist of a housing, a liquid crystal display panel housed within the housing, and a backlight module within the housing. LCDs require a light source provided by the backlight module to display images properly.

[0003] Typically, a liquid crystal display panel is made by bonding two glass substrates (array glass and color filter glass) together, with liquid crystal injected between the two glass substrates. Pixel electrodes and common electrodes are set on the opposite inner sides of the two glass substrates. The rotation direction of the liquid crystal is controlled by the voltage field strength, and the light from the backlight module is refracted to produce an image.

[0004] Due to the inherent properties of liquid crystal molecules, LCDs have a high degree of adhesion. As a result, their response speed is relatively poor, especially at low temperatures, where ghosting becomes more pronounced, severely affecting the display quality. Summary of the Invention

[0005] The main technical problem addressed by this application is to provide a color filter substrate, a display panel, and a display device, thereby solving the problem of poor liquid crystal response speed in the prior art.

[0006] To address the aforementioned technical problems, the first technical solution provided in this application is: to provide a color filter substrate, comprising:

[0007] Substrate;

[0008] Common electrode layer;

[0009] The color filter substrate also includes a thermosensitive conductive layer located between the substrate and the common electrode layer; the thermosensitive conductive layer is used to form multiple leads and multiple independent conductive blocks; each conductive block is connected to at least one lead;

[0010] At least one conductive block is used as a temperature sensing element;

[0011] In this embodiment, at least one conductive block is electrically connected to a common electrode layer to serve as a heating electrode; or, the conductive block serves as a touch electrode, and the common electrode layer is electrically connected to at least one lead to be reused as a heating electrode.

[0012] The color filter substrate has a display area and a border area, the thermal conductive layer is transparent, and the conductive block is located in the display area.

[0013] Each conductive block has a single function;

[0014] A conductive block used as a temperature sensing element is defined as a temperature-sensitive conductive block, and each temperature-sensitive conductive block is connected to at least one lead.

[0015] Define the conductive blocks that are electrically connected to the common electrode layer to serve as heating electrodes as heating conductive blocks, and connect each heating conductive block to a lead.

[0016] in,

[0017] The color filter substrate also includes a first bonding portion and a second bonding portion, both of which are located in the border area; a temperature-sensitive conductive block is provided corresponding to two leads, one of which is electrically connected to the first bonding portion and the other is electrically connected to the second bonding portion; the color filter substrate has a display stage, a temperature-sensing stage, and a heating stage; the display stage, the heating stage, and the temperature-sensing stage are performed in a time-sequential manner;

[0018] in,

[0019] The lead corresponding to the heating conductive block is electrically connected to one of the first and second binding parts; the display stage, heating stage, and temperature sensing stage are performed in a time-sharing manner.

[0020] or,

[0021] The color filter substrate also includes a third bonding part located in the bezel area; the lead corresponding to the heating conductive block is electrically connected to the third bonding part; the heating stage and the display stage are performed in a time-sharing manner.

[0022] Among them, the conductive block that is time-division multiplexed as a temperature sensing element and a heating electrode is defined as a first multifunctional conductive block, and there is at least one first multifunctional conductive block;

[0023] Each first multi-functional conductive block is connected to two leads.

[0024] Among the multiple independent conductive blocks, some conductive blocks are first multifunctional conductive blocks, and others are temperature-sensitive conductive blocks. Each temperature-sensitive conductive block is connected to two leads. The color filter substrate has a display stage, a temperature-sensitive stage, and a heating stage.

[0025] The color filter substrate also includes a first bonding portion and a second bonding portion, both of which are located in the border area; one of the two leads corresponding to the temperature-sensitive conductive block is electrically connected to the first bonding portion and the other is electrically connected to the second bonding portion;

[0026] in,

[0027] One of the two leads corresponding to the first multifunctional conductive block is electrically connected to the first binding part, and the other is electrically connected to the second binding part; the display stage, heating stage, and temperature sensing stage are performed in a time-sharing manner;

[0028] or,

[0029] The color filter substrate also includes a third bonding portion located in the bezel area; one of the two leads corresponding to the first multifunctional conductive block is electrically connected to one of the first bonding portion and the second bonding portion, and the other is electrically connected to the third bonding portion; the display stage and the heating stage are performed in a time-sharing manner, and the temperature sensing stage and the heating stage are performed in a time-sharing manner.

[0030] Among them, the conductive block that is defined as a temperature sensing element and a touch electrode for time-division multiplexing is a second multifunctional conductive block, and there is at least one second multifunctional conductive block; each conductive block is electrically connected to a lead; the color filter substrate has a display stage, a touch stage, a heating stage and a temperature sensing stage;

[0031] The color filter substrate includes a first bonding portion located in the bezel area, and all leads are electrically connected to the first bonding portion. The display stage, heating stage, touch stage and temperature sensing stage are performed in a time-separated manner.

[0032] or,

[0033] The color filter substrate includes a first bonding portion and a second bonding portion, both of which are located in the border area; the leads corresponding to the conductive blocks are electrically connected to the first bonding portion, and the leads electrically connected to the common electrode layer are electrically connected to the second bonding portion; the display stage and the heating stage are performed in a time-sharing manner, and the touch stage and the temperature sensing stage are performed in a time-sharing manner.

[0034] The color filter substrate also includes a filter layer, which is located between the thermistor conductive layer and the common electrode layer; the color filter substrate also includes conductive holes, through which conductive blocks are electrically connected to the common electrode layer, or, leads are electrically connected to the common electrode layer through conductive holes.

[0035] To address the aforementioned technical problems, the second technical solution provided in this application is: a display panel, comprising:

[0036] The color filter substrate is the aforementioned color filter substrate;

[0037] An array substrate is positioned opposite to a color filter substrate.

[0038] The liquid crystal is located between the color filter substrate and the array substrate.

[0039] To solve the above-mentioned technical problems, the third technical solution provided in this application is: to provide a display device, comprising:

[0040] The display panel is the one described above;

[0041] The display panel may also include a control module; or the display device may also include a control module.

[0042] The control module is electrically connected to the leads in the color filter substrate.

[0043] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a color filter substrate, a display panel, and a display device. The color filter substrate includes a substrate, a common electrode layer, and a thermosensitive conductive layer. The thermosensitive conductive layer is located between the substrate and the common electrode layer. The thermosensitive conductive layer is used to form multiple leads and multiple independent conductive blocks. Each conductive block is connected to at least one lead. At least one conductive block serves as a temperature sensing element. Specifically, at least one conductive block is electrically connected to the common electrode layer to serve as a heating electrode; or, the conductive block serves as a touch electrode, and the common electrode layer is electrically connected to at least one lead to be reused as a heating electrode. By setting a thermosensitive conductive layer in the color filter substrate and using the conductive blocks in the thermosensitive conductive layer as temperature sensing elements, the temperature of the display panel can be monitored. Secondly, the common electrode layer is electrically connected to the conductive blocks or leads in the thermosensitive conductive layer, making them reused as heating electrodes, which can heat the liquid crystal in low-temperature environments, improving the display speed and display quality of the display panel, and increasing the stability and reliability of the display panel. Furthermore, when the conductive block serves as a touch electrode, it can also realize integrated touch display, meeting the intelligent needs of users. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0045] Figure 1 This is a top view of the first embodiment of the color filter substrate provided in this application.

[0046] Figure 2 This is a schematic diagram of the longitudinal section structure of an embodiment of the color filter substrate provided in this application;

[0047] Figure 3 This is a top view of the second embodiment of the color filter substrate provided in this application.

[0048] Figure 4 This is a top view of the third embodiment of the color filter substrate provided in this application.

[0049] Figure 5 This is a top view of the fourth embodiment of the color filter substrate provided in this application.

[0050] Figure 6 This is a top view of the fifth embodiment of the color filter substrate provided in this application.

[0051] Figure 7This is a schematic diagram of the longitudinal section structure of another embodiment of the color filter substrate provided in this application;

[0052] Figure 8 This is a top view of the sixth embodiment of the color filter substrate provided in this application.

[0053] Figure 9 This is a schematic diagram of the structure of a display panel according to an embodiment of this application;

[0054] Figure 10 This is a schematic diagram of the structure of an embodiment of the display device provided in this application;

[0055] Figure 11 This is a schematic diagram of another embodiment of the display device provided in this application.

[0056] Explanation of icon numbers:

[0057] 100, Color filter substrate; 101, Display area; 102, Bezel area; 10, Substrate; 20, Common electrode layer; 30, Thermosensitive conductive layer; 31, Conductive block; 311, Temperature-sensitive conductive block; 312, Heating conductive block; 313, First multi-functional conductive block; 314, Second multi-functional conductive block; 32, Lead wire; 41, First bonding part; 42, Second bonding part; 43, Third bonding part; 60, Filter layer; 61, Color resist; 62, Black matrix; 70, Conductive hole; 80, Insulating layer; 200, Array substrate; 300, Liquid crystal; 400, Display panel; 500, Control module; 600, Main control board; 700, Display device. Detailed Implementation

[0058] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0059] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0061] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0062] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0063] Please see Figures 1 to 3 , Figure 1 This is a top view of the first embodiment of the color filter substrate provided in this application. Figure 2 This is a schematic diagram of the longitudinal section structure of a color filter substrate according to an embodiment of this application. Figure 3 This is a top view of the second embodiment of the color filter substrate provided in this application.

[0064] This application provides a color filter substrate 100. The color filter substrate 100 includes a substrate 10, a common electrode layer 20, and a thermistor conductive layer 30. The thermistor conductive layer 30 is located between the substrate 10 and the common electrode layer 20. The thermistor conductive layer 30 is used to form a plurality of leads 32 and a plurality of independent conductive blocks 31. Each conductive block 31 is connected to at least one lead 32. At least one conductive block 31 serves as a temperature sensing element. Specifically, at least one conductive block 31 is electrically connected to the common electrode layer 20 to serve as a heating electrode, or the conductive block 31 serves as a touch electrode, and the common electrode layer 20 is electrically connected to at least one lead 32 to be reused as a heating electrode.

[0065] This embodiment of the application provides a thermosensitive conductive layer 30 in the color filter substrate 100, and uses the conductive block 31 in the thermosensitive conductive layer 30 as a temperature sensing element, thereby enabling temperature sensing of the display panel 400 (see...). Figure 9 Temperature monitoring; secondly, the common electrode layer 20 is electrically connected to the conductive block 31 or lead 32 in the thermistor conductive layer 30, so that it can be reused as a heating electrode, which can heat the liquid crystal 300 in a low-temperature environment (see temperature monitoring). Figure 9 This improves the display speed and quality of the display panel 400, and increases the stability and reliability of the display panel 400. In addition, when the conductive block 31 is used as a touch electrode, it can also realize the integration of touch display and meet the intelligent needs of users.

[0066] The substrate 10 can be a rigid substrate, such as glass, quartz, sapphire, etc.; the substrate 10 can also be a flexible substrate, such as polyimide (PI), polyethylene terephthalate (PET), etc. There are no restrictions on the material of the substrate 10; it can be selected according to actual needs. The substrate 10 is a transparent substrate.

[0067] When the display panel 400 is in the display stage, the common electrode layer 20 is used as an electrode in the display panel 400 to drive the liquid crystal 300 to deflect.

[0068] In some embodiments, the color filter substrate 100 has a display area 101 and a border area 102, the thermal conductive layer 30 is transparent, and the conductive block 31 is located in the display area 101.

[0069] For example, the border area 102 is set around the display area 101.

[0070] The lead 32 and the conductive block 31 are patterned from the same conductive layer, and both the lead 32 and the conductive block 31 have thermal properties.

[0071] Lead 32 is at least partially located in the display area 101 for electrically connecting conductive block 31 to external control circuitry (e.g., Figure 10 The control module 500 is connected.

[0072] For example, the thermal conductive layer 30 includes a transparent conductive oxide (TCO): such as indium tin oxide (ITO), aluminum zinc oxide (AZO), or zinc tin oxide (IZO).

[0073] For example, the thermally conductive layer 30 includes graphene.

[0074] The materials of the thermal conductive layer 30 include, but are not limited to, those selected according to actual needs.

[0075] The shapes of the conductive blocks 31 can be different, and / or the sizes of the conductive blocks 31 can be different; or, the shapes and sizes of the conductive blocks 31 can be the same. There are no restrictions on the shape and size of the multiple conductive blocks 31, and they can be selected according to actual needs.

[0076] For example, the conductive blocks 31 are all rectangular in shape, and all conductive blocks 31 are of equal size.

[0077] In other embodiments, the shape of the conductive block 31 can be a regular or irregular shape such as a circle, triangle, parallelogram, or trapezoid.

[0078] There are no restrictions on the arrangement of conductive blocks 31 here; the arrangement can be selected according to actual needs.

[0079] For example, multiple conductive blocks 31 are arranged in a matrix. Leads 32 are provided to extend along the row direction of conductive blocks 31 or along the column direction of conductive blocks 31 to facilitate wiring.

[0080] It should be noted that in the embodiments of this application, some of the leads 32 are straight structures and others are L-shaped structures. The extension direction of the straight structure is defined as the extension direction of the lead 32, and the extension direction of the long arm of the L-shaped structure is parallel to the extension direction of the straight structure; or, all the leads 32 are L-shaped structures, and the extension direction of the long arm of the L-shaped structure is the extension direction of the lead 32.

[0081] In some embodiments, at least one conductive block 31 serves as a temperature sensing element, and at least one conductive block 31 is electrically connected to the common electrode layer 20 to serve as a heating electrode.

[0082] In some embodiments, each conductive block 31 has a single function. The conductive block 31 used as a temperature sensing element is defined as a temperature-sensing conductive block 311, and each temperature-sensing conductive block 311 is connected to at least one lead 32.

[0083] The conductive block 31, which is electrically connected to the common electrode layer 20 to serve as a heating electrode, is defined as a heating conductive block 312, and each heating conductive block 312 is connected to a lead 32.

[0084] In this embodiment, both the temperature-sensitive conductive block 311 and the heating conductive block 312 are single-function conductive blocks 31. That is, the temperature-sensitive conductive block 311 is only used as a temperature-sensing element and is not reused as a heating electrode and / or a touch electrode. Similarly, the heating conductive block 312 is only used as a heating electrode and is not reused as a temperature-sensing element and / or a touch electrode.

[0085] The color filter substrate 100 has a display stage, a heating stage, and a temperature sensing stage. The heating stage and the display stage are performed at different times. That is, display and heating cannot be performed simultaneously.

[0086] Specifically, during the display phase, the common electrode layer 20 serves as an electrode controlling the deflection of the liquid crystal 300, used to generate an electric field. During the heating phase, the common electrode layer 20 is electrically connected to the heating conductive block 312. Both the common electrode layer 20 and the heating conductive block 312 are used as heating electrodes, enabling the liquid crystal 300 to be heated at low temperatures, thereby improving the display speed and display quality of the display panel 400. By positioning the common electrode layer 20 close to the liquid crystal 300 and using it as a heating electrode, heating delays can be avoided from affecting the response speed of the display panel 400.

[0087] In some specific embodiments, such as Figure 1 As shown, the color filter substrate 100 also includes a first bonding portion 41 and a second bonding portion 42, both located in the border area 102. A temperature-sensitive conductive block 311 is disposed corresponding to two leads 32, one of which is electrically connected to the first bonding portion 41, and the other to the second bonding portion 42. The lead 32 corresponding to the heating conductive block 312 is electrically connected to one of the first bonding portion 41 and the second bonding portion 42. The display stage, heating stage, and temperature-sensing stage are performed sequentially.

[0088] For example, the lead 32 corresponding to the heating conductive block 312 is electrically connected to the first binding part 41. The first binding part 41 and the second binding part 42 are located on the same side of the display area 101.

[0089] In other embodiments, the first binding part 41 and the second binding part 42 may be located on opposite sides of the display area 101. The first binding part 41 and the second binding part 42 may be connected to the lead wire 32 across the wire, or through a hole, or other connection methods are not limited here, and may be selected according to actual needs.

[0090] During the display phase, the first bonding part 41 and the common electrode layer 20 are connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0091] During the heating phase, the first bonding part 41 is connected to a high-level signal, and the common electrode layer 20 is connected to a low-level signal. The heating conductive block 312 and the common electrode layer 20 are used to heat the liquid crystal 300.

[0092] During the temperature sensing stage, one of the first binding part 41 and the second binding part 42 is connected to a high-level signal, and the other is connected to a low-level signal. The temperature-sensing conductive block 311 is used to sense the temperature of the display panel 400.

[0093] In other specific embodiments, such as Figure 3As shown, the color filter substrate 100 also includes a first bonding portion 41, a second bonding portion 42, and a third bonding portion 43, all of which are located in the border area 102. The lead 32 corresponding to the heating conductive block 312 is electrically connected to the third bonding portion 43. The heating stage and the display stage are performed in a time-sharing manner.

[0094] Specifically, the heating stage and the temperature sensing stage can be performed at different times, or they can be performed simultaneously. The display stage and the temperature sensing stage can be performed at different times, or they can be performed simultaneously.

[0095] During the display phase, the third bonding part 43 and the common electrode layer 20 are connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0096] During the heating phase, a high-level signal is connected to one of the third bonding part 43 and the common electrode layer 20, and a low-level signal is connected to the other. The heating conductive block 312 and the common electrode layer 20 are used to heat the liquid crystal 300.

[0097] During the temperature sensing stage, one of the first binding part 41 and the second binding part 42 is connected to a high-level signal, and the other is connected to a low-level signal. The temperature-sensing conductive block 311 is used to sense the temperature of the display panel 400.

[0098] In other embodiments, the temperature-sensitive conductive block 311 is connected to a lead 32, the temperature-sensing element is a capacitive temperature-sensing element, and the heating conductive block 312 is connected to a lead 32. The lead 32 corresponding to the temperature-sensitive conductive block 311 and the lead 32 corresponding to the heating conductive block 312 can be connected to the same binding part or to different binding parts. This will not be described in detail here, and the choice can be made according to actual needs.

[0099] It should be noted that the first binding part 41, the second binding part 42 and the third binding part 43 in the embodiments of this application are all binding parts, and are only distinguished by the terms "first", "second" and "third".

[0100] Please see Figures 1 to 5 , Figure 4 This is a top view of the third embodiment of the color filter substrate provided in this application. Figure 5 This is a top view of the fourth embodiment of the color filter substrate provided in this application.

[0101] In other embodiments, the conductive block 31, which is time-division multiplexed as a temperature sensing element and a heating electrode, is defined as a first multifunctional conductive block 313, and there is at least one first multifunctional conductive block 313.

[0102] Each first multifunctional conductive block 313 is connected to two leads 32.

[0103] For example, the first multifunctional conductive block 313 is electrically connected to the common electrode layer 20 so that both the first multifunctional conductive block 313 and the common electrode layer 20 can be reused as heating electrodes.

[0104] In some embodiments, among the plurality of independent conductive blocks 31, a portion of the conductive blocks 31 are first multifunctional conductive blocks 313, and another portion of the conductive blocks 31 are temperature-sensitive conductive blocks 311, each temperature-sensitive conductive block 311 being connected to two leads 32. The color filter substrate 100 has a display stage, a temperature-sensitive stage, and a heating stage.

[0105] During the heating phase, both the first multifunctional conductive block 313 and the common electrode layer 20 are reused as heating electrodes.

[0106] During the temperature sensing stage, the first multifunctional conductive block 313 is reused as a temperature sensing element. That is, all conductive blocks 31 are temperature sensing elements, which can uniformly monitor the temperature of all parts of the entire display panel 400.

[0107] During the display phase, the first multifunctional conductive block 313 is not in operation, and the common electrode layer 20 generates an electric field to control the deflection of the liquid crystal 300.

[0108] In some specific embodiments, such as Figure 4 As shown, the color filter substrate 100 also includes a first bonding portion 41 and a second bonding portion 42, both located in the border area 102. One of the two leads 32 corresponding to the temperature-sensitive conductive block 311 is electrically connected to the first bonding portion 41, and the other is electrically connected to the second bonding portion 42. Similarly, one of the two leads 32 corresponding to the first multifunctional conductive block 313 is electrically connected to the first bonding portion 41, and the other is electrically connected to the second bonding portion 42. The display stage, heating stage, and temperature-sensing stage are performed sequentially.

[0109] Specifically, during the display stage, the first bonding part 41, the second bonding part 42 and the common electrode layer 20 are all connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0110] During the heating phase, the first bonding part 41 and the second bonding part 42 are connected to a high-level signal, and the common electrode layer 20 is connected to a low-level signal. The common electrode layer 20 and the first functional conductive block 31 heat the liquid crystal 300.

[0111] During the temperature sensing stage, one of the first bonding part 41 and the second bonding part 42 is connected to a high-level signal, and the other is connected to a low-level signal, while the common electrode layer 20 is connected to a low-level signal. Both the first functional conductive block 31 and the temperature-sensing conductive block 311 are used to sense the temperature of the display panel 400.

[0112] In other specific embodiments, such as Figure 5As shown, the color filter substrate 100 also includes a first bonding portion 41, a second bonding portion 42, and a third bonding portion 43, all of which are located in the border area 102. One of the two leads 32 corresponding to the first multifunctional conductive block 313 is electrically connected to one of the first bonding portion 41 and the second bonding portion 42, and the other is electrically connected to the third bonding portion 43. The display stage and the heating stage are performed time-sharingly, and the temperature sensing stage is also performed time-sharingly with the heating stage.

[0113] For example, one of the two leads 32 corresponding to the first multifunctional conductive block 313 is electrically connected to the first binding part 41, and the other is electrically connected to the third binding part 43.

[0114] Specifically, during the display stage, the first bonding part 41, the third bonding part 43 and the common electrode layer 20 are all connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0115] During the heating phase, the first bonding part 41 and the third bonding part 43 are connected to a high-level signal, and the common electrode layer 20 is connected to a low-level signal. The common electrode layer 20 and the first functional conductive block 31 heat the liquid crystal 300.

[0116] During the temperature sensing phase, one of the first bonding portion 41 and the second bonding portion 42 is connected to a high-level signal, and the other is connected to a low-level signal, while the common electrode layer 20 is connected to a low-level signal. The first functional conductive block 31 and the temperature-sensing conductive block 311 sense the temperature of the display panel 400.

[0117] In other embodiments, all conductive blocks 31 can be first functional conductive blocks 31.

[0118] Please see Figures 1 to 7 , Figure 6 This is a top view of the fifth embodiment of the color filter substrate provided in this application. Figure 7 This is a schematic diagram of the longitudinal section structure of another embodiment of the color filter substrate provided in this application.

[0119] In other embodiments, at least one conductive block 31 is used as a temperature sensing element and as a touch electrode, and the common electrode layer 20 is electrically connected to at least one lead 32 for reuse as a heating electrode.

[0120] The conductive block 31, which is time-division multiplexed as a temperature sensing element and a touch electrode, is defined as a second multifunctional conductive block 314, and there is at least one second multifunctional conductive block 314. Each conductive block 31 is electrically connected to a lead 32. The color filter substrate 100 has a display stage, a touch stage, a heating stage, and a temperature sensing stage.

[0121] For example, all conductive blocks 31 are second multifunctional conductive blocks 314.

[0122] In some specific embodiments, such as Figure 6 As shown, the color filter substrate 100 includes a first bonding portion 41, and the leads 32 are all electrically connected to the first bonding portion 41. The display stage, heating stage, touch stage and temperature sensing stage are performed in a time-sharing manner.

[0123] During the display stage, both the first bonding part 41 and the common electrode layer 20 are connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0124] During the heating phase, the first bonding part 41 is connected to a high-level signal, and the common electrode layer 20 is connected to a low-level signal, so that the common electrode layer 20 heats the liquid crystal 300.

[0125] During the touch control phase, an excitation signal is applied to the lead wire 32 through the first bonding part 41 and the capacitance change is detected to realize the touch position detection. The second multifunctional conductive block 314 is reused as a touch electrode, which is a capacitive touch electrode.

[0126] During the temperature sensing stage, as the temperature changes, the dielectric constant of the dielectric layer located between the thermistor conductive layer 30 and the common electrode layer 20 changes, resulting in a change in capacitance between the conductive block 31 and the common electrode layer 20. The temperature of the display panel 400 is detected by monitoring the capacitance. The second multifunctional conductive block 314 is reused as a temperature sensing element, which is a capacitive temperature sensing element.

[0127] In other embodiments, part of the conductive block 31 is a temperature-sensitive conductive block 311, and part of the conductive block 31 is a second multifunctional conductive block 314.

[0128] Please see Figures 1 to 8 , Figure 8 This is a top view of the sixth embodiment of the color filter substrate provided in this application.

[0129] In other specific embodiments, such as Figure 8 As shown, the color filter substrate 100 includes a first bonding portion 41 and a second bonding portion 42. The leads 32 corresponding to the conductive blocks 31 are all electrically connected to the first bonding portion 41, and the leads 32 that electrically connect to the common electrode layer 20 are electrically connected to the second bonding portion 42. The display stage and the heating stage are performed in a time-sharing manner, and the touch stage and the temperature sensing stage are performed in a time-sharing manner.

[0130] In some embodiments, the display phase, heating phase, touch phase, and temperature sensing phase are performed in a time-sharing manner; or, the display phase and touch phase are performed simultaneously, and the display phase, temperature sensing phase, and heating phase are performed in a time-sharing manner; or, the display phase and temperature sensing phase are performed simultaneously, and the display phase, touch phase, and heating phase are performed in a time-sharing manner; or, the heating phase and touch phase are performed simultaneously, and the display phase, temperature sensing phase, and heating phase are performed in a time-sharing manner; or, the heating phase and temperature sensing phase are performed simultaneously, and the display phase, touch phase, and heating phase are performed in a time-sharing manner.

[0131] During the display phase, the second bonding part 42 and the common electrode layer 20 are connected to a common voltage signal. The common electrode layer 20 is used to generate an electric field to control the deflection of the liquid crystal 300.

[0132] During the heating phase, the second bonding part 42 is connected to a high-level signal, and the common electrode layer 20 is connected to a low-level signal, so that the common electrode layer 20 heats the liquid crystal 300.

[0133] During the touch control phase, an excitation signal is applied to the lead wire 32 through the first bonding part 41 and the capacitance change is detected to realize the touch position detection. The second multifunctional conductive block 314 is reused as a touch electrode, which is a capacitive touch electrode.

[0134] During the temperature sensing stage, as the temperature changes, the dielectric constant of the dielectric layer located between the thermistor conductive layer 30 and the common electrode layer 20 changes, resulting in a change in capacitance between the conductive block 31 and the common electrode layer 20. The temperature of the display panel 400 is detected by monitoring the capacitance. The second multifunctional conductive block 314 is reused as a temperature sensing element, which is a capacitive temperature sensing element.

[0135] In some embodiments, an insulating layer 80 is filled between the conductive blocks 31. The insulating layer 80 may be an insulating material layer that does not affect the normal display of the color filter substrate 100, such as an incremental layer, a lens, or a light-transmitting layer.

[0136] In some embodiments, the color filter substrate 100 further includes a filter layer 60, which is located between the thermistor conductive layer 30 and the common electrode layer 20, i.e., the filter layer 60 serves as a dielectric layer between the thermistor conductive layer 30 and the common electrode layer 20. The color filter substrate 100 also includes conductive holes 70, through which the conductive block 31 is electrically connected to the common electrode layer 20, or through the conductive hole 70.

[0137] The filter layer 60 includes a color filter 61 and a black matrix 62 located between the color filter 61. The distribution of the color filter 61 and the black matrix 62 is not limited here and can be selected according to actual needs.

[0138] For example, the conductive block 31 is electrically connected to the common electrode layer 20 through a plurality of conductive holes 70 to improve the good electrical connection between the conductive block 31 and the common electrode layer 20.

[0139] There are no restrictions on the conductive material used to fill the conductive hole 70; it can be selected according to actual needs. The conductive material inside the conductive hole 70 is transparent.

[0140] The conductive holes 70 connected to the lead wire 32 are located between at least two diagonally adjacent conductive blocks 31. The number and arrangement of the conductive holes 70 are not limited here and can be selected according to actual needs.

[0141] Please see Figures 1 to 9 , Figure 9 This is a schematic diagram of the structure of a display panel according to an embodiment of this application.

[0142] This application provides a display panel 400. The display panel 400 includes a color filter substrate 100, an array substrate 200, and a liquid crystal 300.

[0143] The color filter substrate 100 is the same as described above. The array substrate 200 is disposed opposite to the color filter substrate 100. The liquid crystal 300 is located between the color filter substrate 100 and the array substrate 200.

[0144] The common electrode layer 20 is located on the side of the substrate 10 near the array substrate 200.

[0145] Please see Figures 1 to 11 , Figure 10 This is a schematic diagram of the structure of an embodiment of the display device provided in this application. Figure 11 This is a schematic diagram of another embodiment of the display device provided in this application.

[0146] This application provides a display device 700. The display device 700 includes the display panel 400 described above.

[0147] In some embodiments, the display panel 400 further includes a control module 500. The control module 500 is electrically connected to the leads 32 in the color filter substrate 100.

[0148] For example, the control module 500 is connected to the bonding part. The control module 500 is used to control the operation of the conductive block 31.

[0149] At different stages, the control module 500 controls the conductive block 31 to perform different operations, as described above, and will not be repeated here.

[0150] The control module 500 can be integrated into the printed circuit board (not shown) of the display panel 400, or into the array substrate 200 of the display panel 400.

[0151] In some embodiments, the display device 700 further includes a control module 500 and a main control board 600. The main control board 600 is the central part of the entire display device 700, responsible for coordinating and controlling the various functions of the display panel 400. The description of the control module 500 is the same as described above, and will not be repeated here. The control module 500 can be set independently of the display panel 400, or it can be integrated into the main control board 600 of the display device 700, or it can be set independently of the display panel 400 and the main control board 600 (see...). Figure 11 ).

[0152] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0153] The above are merely embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A color filter substrate having a border area, comprising: Substrate; Common electrode layer; The color filter substrate is characterized in that it further includes a thermosensitive conductive layer located between the substrate and the common electrode layer; the thermosensitive conductive layer is used to form multiple leads and multiple independent conductive blocks; each conductive block is connected to at least one lead; At least one of the conductive blocks is used as a temperature sensing element; Wherein, at least one of the conductive blocks is electrically connected to the common electrode layer to serve as a heating electrode; or, the conductive block serves as a touch electrode, and the common electrode layer is electrically connected to at least one of the leads to be reused as a heating electrode; Each of the conductive blocks has a single function; The conductive block used as a temperature sensing element is defined as a temperature-sensitive conductive block, and each temperature-sensitive conductive block is connected to at least one lead. The conductive block electrically connected to the common electrode layer to serve as a heating electrode is defined as a heating conductive block, and each heating conductive block is connected to one lead wire; The color filter substrate further includes a first bonding portion and a second bonding portion, both of which are located in the border area; the temperature-sensitive conductive block is provided corresponding to the two leads, one of which is electrically connected to the first bonding portion and the other is electrically connected to the second bonding portion; the color filter substrate has a display stage, a temperature-sensing stage and a heating stage; in, The lead corresponding to the heating conductive block is electrically connected to one of the first binding part and the second binding part; the display stage, the heating stage, and the temperature sensing stage are performed time-sharingly; or... The color filter substrate also includes a third bonding portion located in the border area; the lead corresponding to the heating conductive block is electrically connected to the third bonding portion; the heating stage and the display stage are performed in a time-sharing manner.

2. The color filter substrate according to claim 1, characterized in that, The color filter substrate also has a display area, the thermal conductive layer is transparent, and the conductive block is located in the display area.

3. The color filter substrate according to claim 1, characterized in that, The color filter substrate further includes a filter layer located between the thermal conductive layer and the common electrode layer; the color filter substrate also includes conductive holes, the conductive block being electrically connected to the common electrode layer through at least one of the conductive holes, or the lead being electrically connected to the common electrode layer through the conductive holes.

4. A display panel, characterized in that, include: The color filter substrate is the color filter substrate as described in any one of claims 1 to 3; An array substrate is disposed opposite to the color filter substrate; The liquid crystal is located between the color filter substrate and the array substrate.

5. A display device, characterized in that, include: The display panel is the display panel as described in claim 4; The display panel may further include a control module; or the display device may further include the control module. The control module is electrically connected to the leads in the color filter substrate.

Citation Information

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