LCD panels and display devices

By setting coils around the liquid crystal layer in the liquid crystal display panel and generating a magnetic field to heat the liquid crystal molecules, the problem of ghosting and color fading at low temperatures is solved, and the response speed and display effect of the liquid crystal display panel are improved.

CN119511575BActive Publication Date: 2025-10-28CHANGSHA HKC OPTOELECTRONICS CO LTD +1
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Patent Information

Application Number
CN202411747066.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-10-28
Estimated Expiration
2044-11-29

AI Technical Summary

Technical Problem

Existing LCD panels exhibit ghosting and color distortion at low temperatures, affecting display quality.

Method used

A coil is placed in the liquid crystal display panel. The coil surrounds the liquid crystal layer and generates a magnetic field when energized to heat the liquid crystal molecules. The principle of electromagnetic induction heating is used to reduce the viscosity of the liquid crystal molecules and improve the response speed.

Benefits of technology

By heating the liquid crystal molecules, their viscosity is reduced, thus avoiding ghosting and color trailing, and improving the response speed and display effect of the liquid crystal display panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a liquid crystal display panel and a display device. The liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, and a coil. The second substrate is disposed opposite to the first substrate; the first substrate and the second substrate are fixedly connected by a frame adhesive, and the first substrate, the second substrate, and the frame adhesive form a receiving cavity. The liquid crystal layer is disposed within the receiving cavity; the liquid crystal layer includes a plurality of liquid crystal molecules; the coil is disposed around the liquid crystal layer; the coil can generate a magnetic field to heat the liquid crystal molecules when energized. The coil is disposed around the axial direction of the liquid crystal display panel; the axial direction is parallel to the liquid crystal display panel. This liquid crystal display panel can avoid the phenomenon of ghosting and color fringing, effectively improving the display effect of the liquid crystal display panel. Furthermore, it can effectively increase the heating rate of the liquid crystal molecules, further improving the ghosting and color fringing phenomenon.
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Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a liquid crystal display panel and a display device. Background Technology

[0002] Liquid crystal display (LCD) panels are a widely used display technology, especially in devices such as televisions, computer monitors, smartphones, and tablets. LCD panels display images by controlling the arrangement of liquid crystal molecules to regulate light transmittance. Liquid crystal is a substance between a solid and a liquid state, possessing unique optical and electrical properties; liquid crystal molecules can change their arrangement under the influence of an external electric field.

[0003] However, existing LCD panels exhibit ghosting and color distortion at low temperatures, affecting display quality. Summary of the Invention

[0004] The liquid crystal display panel and display device provided in this application aim to solve the problem of ghosting and color fading in existing liquid crystal display panels at low temperatures.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a liquid crystal display panel, comprising:

[0006] First substrate;

[0007] The second substrate is disposed opposite to the first substrate; the first substrate and the second substrate are fixedly connected by frame adhesive, and the first substrate, the second substrate and the frame adhesive surround to form a receiving cavity;

[0008] A liquid crystal layer is disposed within the receiving cavity; the liquid crystal layer comprises a plurality of liquid crystal molecules;

[0009] A coil is disposed around the liquid crystal layer; the coil is capable of generating a magnetic field to heat the liquid crystal molecules when energized.

[0010] The coil is arranged along the axis of the liquid crystal display panel; the axis is parallel to the liquid crystal display panel.

[0011] In one specific embodiment, the coil is a multi-turn coil; each turn of the coil includes:

[0012] A first conductive segment is disposed on the side of the first substrate facing the liquid crystal layer;

[0013] The first gold ball is disposed between the first substrate and the second substrate and penetrates the frame adhesive;

[0014] The first connecting segment is electrically connected to the first gold ball;

[0015] The second conductive segment is disposed on the side of the second substrate facing the liquid crystal layer; and the first conductive segment and the second conductive segment are offset from each other; one of the first gold ball and the first connecting segment is electrically connected to the first conductive segment, and the other is electrically connected to the second conductive segment;

[0016] The second gold ball is disposed between the first substrate and the second substrate and penetrates the frame adhesive;

[0017] The second connecting segment is electrically connected to the second gold ball;

[0018] In this configuration, one of the second gold ball and the second connecting segment is electrically connected to the second conductor segment, and the other is electrically connected to the first conductor segment in the next turn of the coil.

[0019] In one specific embodiment, the first connecting segment is disposed on the side of the first substrate facing the liquid crystal layer; the second connecting segment is disposed on the side of the second substrate facing the liquid crystal layer; or

[0020] The first connecting segment is disposed on the side of the second substrate facing the liquid crystal layer; the second connecting segment is disposed on the side of the first substrate facing the liquid crystal layer; or

[0021] Both the first connecting segment and the second connecting segment are disposed on the side of the first substrate facing the liquid crystal layer; or

[0022] Both the first connecting segment and the second connecting segment are disposed on the side of the second substrate facing the liquid crystal layer.

[0023] In one specific embodiment, the liquid crystal display panel further includes multiple parallel function lines; the first conductor segment and the second conductor segment are both arranged parallel to the function lines; the function lines are data lines or scan lines.

[0024] In one specific embodiment, it further includes:

[0025] A first common electrode layer is disposed on the side of the first substrate facing the liquid crystal layer; and the first conductive segment is disposed at a distance from the first common electrode layer in the same layer.

[0026] The second common electrode layer is disposed on the side of the second substrate facing the liquid crystal layer; and the second conductive line segment is disposed at a distance from the second common electrode layer in the same layer.

[0027] In one specific embodiment, both the first connecting segment and the second connecting segment are disposed on the side of the first substrate facing the liquid crystal layer;

[0028] Some of the functional lines serve as the first conductor segment; and both the first connecting segment and the second connecting segment are equipped with switches to control whether the first connecting segment and the second connecting segment are connected.

[0029] The second conductor segment is aligned with the adjacent functional line of another portion.

[0030] In one specific embodiment, the coil is a multi-turn coil; each turn of the coil includes:

[0031] The first conductive segment is disposed on the side of the first substrate away from the liquid crystal layer;

[0032] The second conductive segment is disposed on the side of the second substrate away from the liquid crystal layer; and the first conductive segment and the second conductive segment are offset from each other.

[0033] Two welding lines; one of the two welding lines is electrically connected to the first conductor segment and the second conductor segment respectively, and one end of the other is electrically connected to the second conductor segment, and the other end is electrically connected to the first conductor segment in the next turn of the coil.

[0034] In one specific embodiment, it further includes:

[0035] A sealing layer covers the surface of the coil and the outer surfaces of the first substrate, the second substrate, and the frame adhesive that are not covered by the coil.

[0036] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a display device, comprising:

[0037] Liquid crystal display panel, wherein the liquid crystal display panel is any of the liquid crystal display panels mentioned above;

[0038] The control unit is electrically connected to the coil of the liquid crystal display panel and is used to control whether to energize the coil;

[0039] A driving chip; one end of the driving chip is electrically connected to the driving circuit layer of the liquid crystal display panel, and is used to transmit driving signals to the driving circuit layer and control the liquid crystal display panel to switch between display frames and black frames; the other end of the driving chip is electrically connected to the control unit, and is used to transmit heating signals to the control unit and control the control unit to energize the coil;

[0040] Specifically, when the driving chip controls the liquid crystal display panel to be in the black frame, the control unit energizes the coil; when the driving chip controls the liquid crystal display panel to be in the display frame, the control unit stops energizing the coil.

[0041] In one specific embodiment, the control unit is electrically connected to the switch of the coil and is used to control the switch;

[0042] In response to the driver chip controlling the liquid crystal display panel to be in the black frame, the control unit controls the switch to be in the on state, so that the first connection segment and the second connection segment of the coil are in the conducting state; in response to the driver chip controlling the liquid crystal display panel to be in the display frame, the control unit controls the switch to be in the off state, so that the first connection segment and the second connection segment are in the disconnected state.

[0043] The beneficial effects of this application's embodiments are as follows: Unlike existing technologies, this application provides a liquid crystal display panel and a display device. The liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, and a coil. The second substrate is disposed opposite to the first substrate; the first and second substrates are fixedly connected by a frame adhesive, and the first substrate, second substrate, and frame adhesive form a receiving cavity. The liquid crystal layer is disposed within the receiving cavity; the liquid crystal layer includes multiple liquid crystal molecules; the coil is disposed around the liquid crystal layer; the coil can generate a magnetic field to heat the liquid crystal molecules when energized. The coil is disposed around the axial direction of the liquid crystal display panel; the axial direction is parallel to the liquid crystal display panel. By providing a coil on the liquid crystal display panel, when using the liquid crystal display panel in a low-temperature environment, power can be supplied to the coil to generate an alternating magnetic field, thereby heating the liquid crystal molecules using the principle of electromagnetic induction heating. This reduces the viscosity of the liquid crystal molecules, allowing them to rotate normally, improving the response speed of the liquid crystal display panel, avoiding ghosting and color trailing phenomena, and effectively improving the display effect of the liquid crystal display panel. In addition, by surrounding the liquid crystal layer with a coil, placing the liquid crystal layer at the center of the coil with a strong magnetic field, the heating rate of the liquid crystal molecules can be effectively increased, further improving the ghosting and color trailing phenomena. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of a liquid crystal display panel provided in an embodiment of this application;

[0045] Figure 2 for Figure 1 The image shows a cross-sectional view of the liquid crystal display panel along line AA.

[0046] Figure 3 for Figure 1 The image shows a cross-sectional view of the liquid crystal display panel along line BB.

[0047] Figure 4 This is a schematic diagram of the structure of a liquid crystal display panel provided in another embodiment of this application;

[0048] Figure 5a for Figure 4 The cross-sectional view of the liquid crystal display panel shown along line C1-C1;

[0049] Figure 5b for Figure 4 The diagram shows a cross-sectional view of the liquid crystal display panel along line C2-C2.

[0050] Figure 6 for Figure 4 The image shows a cross-sectional view of the liquid crystal display panel along line DD.

[0051] Figure 7 for Figure 4 The diagram shows the wiring diagram of the coil in the liquid crystal display panel.

[0052] Figure 8 A wiring diagram of the coil of a liquid crystal display panel provided in another embodiment of this application;

[0053] Figure 9 This is a schematic diagram of a display device provided in one embodiment of the present application;

[0054] Figure 10 This is a schematic diagram of a display device provided in another embodiment of this application.

[0055] Explanation of icon numbers:

[0056] 10-Liquid crystal display panel; 20-Control unit; 30-Temperature sensor; 40-Driver chip; 1-First substrate; 2-Second substrate; 3-Frame adhesive; 4-Liquid crystal layer; 5-Coil; 6-Functional line; 7-First common electrode layer; 8-Second common electrode layer; 9-Sealing layer; 41-Liquid crystal molecule; 42-Orientation layer; 51-First conductive segment; 52-First gold ball; 53-First connecting segment; 54-Second conductive segment; 55-Second gold ball; 56-Second connecting segment; 57-Switch; 58-Welding wire. Detailed Implementation

[0057] 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 of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0058] 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.

[0059] 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.

[0060] In traditional liquid crystal display panels, liquid crystal molecules exhibit viscosity, which refers to the resistance encountered by liquid crystal molecules during flow or rearrangement. Higher viscosity results in greater resistance. When using liquid crystal display panels in low-temperature environments, the viscosity of the liquid crystal molecules increases, slowing down their rearrangement and extending the response time of the display panel. This leads to ghosting and color trailing phenomena, affecting the display quality of dynamic images.

[0061] Based on this, the present application provides a liquid crystal display panel and a display device. The liquid crystal display panel can heat liquid crystal molecules in a low-temperature environment, reduce the viscosity of the liquid crystal molecules, enable the liquid crystal molecules to rotate normally, improve the response speed of the liquid crystal display panel, avoid the phenomenon of ghosting and color dragging in the liquid crystal display panel, and effectively improve the display effect of the liquid crystal display panel.

[0062] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0063] See Figures 1-3 , Figure 1 This is a schematic diagram of the structure of a liquid crystal display panel provided in an embodiment of this application; Figure 2 for Figure 1 The image shows a cross-sectional view of the liquid crystal display panel along line AA. Figure 3 for Figure 1 The image shows a cross-sectional view of the liquid crystal display panel along line BB. This application provides a liquid crystal display panel 10 for displaying images; the liquid crystal display panel 10 may include a first substrate 1, a second substrate 2, a liquid crystal layer 4, and a coil 5.

[0064] like Figure 2 As shown, the first substrate 1 and the second substrate 2 can be glass substrates. A thin-film transistor (TFT) array (not shown) is disposed on the first substrate 1 for controlling the display image. A color filter (not shown) and a common electrode are disposed on the second substrate 2; the color filter is used to filter different colors of light to form a color image, and the common electrode cooperates with the pixel electrodes on the first substrate 1 to form an electric field.

[0065] Specifically, the second substrate 2 is disposed opposite to the first substrate 1 and is fixedly connected by a frame adhesive 3 disposed on the circumferential edge to prevent external water and oxygen from entering the liquid crystal display panel 10; wherein, the first substrate 1, the second substrate 2 and the frame adhesive 3 form a receiving cavity for accommodating liquid crystal molecules 41 and other structures.

[0066] A liquid crystal layer 4 is disposed within the cavity, and the liquid crystal layer 4 includes a plurality of liquid crystal molecules 41. The liquid crystal molecules 41 can change their arrangement direction under the control of an electric field, thereby controlling the passage of light and thus controlling the brightness of each pixel to form a display image. Alignment layers 42 are disposed on both sides of the liquid crystal layer 4 near the first substrate 1 and the second substrate 2, for enabling the liquid crystal molecules to be uniformly arranged in a predetermined alignment direction in the initial state.

[0067] Combination Figure 2 and Figure 3 A coil 5 is arranged around the liquid crystal layer 4, and the coil 5 can generate an alternating magnetic field to heat the liquid crystal molecules 41 when energized. The coil 5 is arranged around the axis of the liquid crystal display panel 10, and the axis is parallel to the liquid crystal display panel 10, so that the distance between the liquid crystal molecules 41 and the coil 5 is close enough to facilitate the heating of the liquid crystal molecules 41 by the magnetic field generated by the coil 5 when energized; in addition, it can also allow the liquid crystal display panel 10 to have a larger number of coil turns.

[0068] Combination Figure 1 and Figure 3 Optionally, the liquid crystal display panel 10 can be a rectangular panel with its axis direction parallel to the length direction X of the liquid crystal display panel 10 or parallel to the width direction Y of the liquid crystal display panel 10, so as to facilitate the setting of the coil 5 in the liquid crystal display panel 10.

[0069] The following embodiments of this application are explained using the example where the axis direction is parallel to the length direction X of the liquid crystal display panel 10.

[0070] Specifically, liquid crystal molecules 41 can directly generate heat in an alternating magnetic field, causing their temperature to rise; or, magnetic nanoparticles can be added to liquid crystal molecules 41. Alternatively, magnetic nanoparticles can be placed in the liquid crystal layer 4, causing them to generate heat in an alternating magnetic field, thus raising the temperature of the liquid crystal layer 4 and indirectly heating the liquid crystal molecules 41.

[0071] By setting a coil 5 on the liquid crystal display panel 10, when using the liquid crystal display panel 10 in a low-temperature environment, powering the coil 5 can generate an alternating magnetic field, thereby heating the liquid crystal molecules 41 using the principle of electromagnetic induction heating. This reduces the viscosity of the liquid crystal molecules 41, allowing them to rotate normally, improving the response speed of the liquid crystal display panel 10, avoiding ghosting and color trailing phenomena, and effectively improving the display effect of the liquid crystal display panel 10. Furthermore, by surrounding the liquid crystal layer 4 with the coil 5, placing the liquid crystal layer 4 at the center of the coil 5 with a strong magnetic field, the heating rate of the liquid crystal molecules 41 can be effectively increased, further improving the ghosting and color trailing phenomena.

[0072] In a specific embodiment, the coil 5 may be disposed outside the first substrate 1 and the second substrate 2. Specifically, the coil 5 is a multi-turn coil 5, and each turn of the coil 5 includes a first conductor segment 51, a second conductor segment 54, and two welding wires 58.

[0073] Among them, such as Figure 3 As shown, the first conductive segment 51 can be disposed on the surface of the first substrate 1 away from the liquid crystal layer 4; the second conductive segment 54 can be disposed on the surface of the second substrate 2 away from the liquid crystal layer 4, that is, the first conductive segment 51 and the second conductive segment are disposed on opposite sides of the liquid crystal display panel 10 along the thickness direction Z. Furthermore, the first conductive segment 51 and the second conductive segment 54 are offset, that is, along the thickness direction Z of the liquid crystal display panel 10, the first conductive segment 51 and the second conductive segment 54 are located on different planes. It can be understood that the first conductive segment 51 disposed on the surface of the first substrate 1 and the second conductive segment 54 disposed on the surface of the second substrate 2 constitute the main body of the coil 5.

[0074] The first conductor segment 51 and the second conductor segment 54 can also be arranged parallel to the function line 6 to avoid the situation where the electric field between the pixel electrode and the common electrode is affected when the coil 5 is energized, thereby affecting the deflection of the liquid crystal molecules 41.

[0075] like Figure 2As shown, two bonding wires 58 are respectively disposed on the surface of the frame adhesive 3 away from the liquid crystal layer 4 at both ends of the first conductor segment 51 and the second conductor segment 54. One of the two bonding wires 58 is electrically connected to the first conductor segment 51 and the second conductor segment 54, so that the first conductor segment 51 can be electrically connected to the second conductor segment 54 through the bonding wire 58. One end of the other bonding wire 58 is electrically connected to the second conductor segment 54, and the other end is electrically connected to the first conductor segment 51 in the next turn coil 5, so that the second conductor segment 54 can be electrically connected to the next turn coil 5 through the second gold ball 55 and the second connecting segment 56. That is, one of the two bonding wires 58 is used to connect the main body part in the same turn coil 5, and the other is used to connect the main body parts of two adjacent turns coil 5.

[0076] Thus, by placing the coil 5 outside the first substrate 1 and the second substrate 2 of the liquid crystal display panel 10, the manufacturing process is simplified and the manufacturing cost is reduced. Specifically, both welding lines 58 can be electrically connected to the first conductor segment 51 and the second conductor segment 54 by welding.

[0077] Combination Figure 2 and Figure 3 In a specific embodiment, the liquid crystal display panel 10 may further include a sealing layer 9; the sealing layer 9 covers the surface of the coil 5 and the outer surfaces of the first substrate 1, the second substrate 2, and the frame adhesive 3 that are not covered by the coil 5, so as to insulate the coil 5 and protect the coil 5 from external moisture corrosion. Specifically, the sealing layer 9 may be a transparent insulating material.

[0078] See Figures 4-7 , Figure 4 This is a schematic diagram of the structure of a liquid crystal display panel provided in another embodiment of this application; Figure 5a for Figure 4 The cross-sectional view of the liquid crystal display panel shown along line C1-C1; Figure 5b for Figure 4 The diagram shows a cross-sectional view of the liquid crystal display panel along line C2-C2. Figure 6 for Figure 4 The image shows a cross-sectional view of the liquid crystal display panel along line DD. Figure 7 for Figure 4 The diagram shows the wiring diagram of the coil in the liquid crystal display panel.

[0079] In a specific embodiment, the coil 5 may also be disposed within the first substrate 1 and the second substrate 2; the coil 5 may be a multi-turn coil 5, and each turn of the coil 5 may include a first conductor segment 51, a first gold ball 52, a first connecting segment 53, a second conductor segment 54, a second gold ball 55, and a second connecting segment 56.

[0080] Combination Figure 5a and Figure 5bThe first conductive segment 51 is disposed on the side of the first substrate 1 facing the liquid crystal layer 4, and the second conductive segment 54 is disposed on the side of the second substrate 2 facing the liquid crystal layer 4; and the first conductive segment 51 and the second conductive segment 54 are offset from each other. It should be noted that the offset arrangement means that the first conductive segment 51 and the second conductive segment 54 are not on the same plane in the direction perpendicular to the liquid crystal display panel 10. It can be understood that the first conductive segment 51 disposed on the first substrate 1 and the second conductive segment 54 disposed on the second substrate 2 constitute the main body of the coil 5.

[0081] Optionally, the first conductor segment 51 and the second conductor segment 54 can also be set parallel and staggered.

[0082] Combination Figure 5a , Figure 5b and Figure 7 A first gold ball 52 is disposed between the first substrate 1 and the second substrate 2 and penetrates the frame adhesive 3, and a first connecting segment 53 is electrically connected to the first gold ball 52; so that the first conductor segment 51 and the second conductor segment 54 can be electrically connected through the first gold ball 52 and the first connecting segment 53. Specifically, one of the first gold ball 52 and the first connecting segment 53 is electrically connected to the first conductor segment 51, and the other is electrically connected to the second conductor segment 54. The first gold ball 52 can be connected to the first conductor segment 51, and the first connecting segment 53 can be connected to the second conductor segment 54; or the first connecting segment 53 can be connected to the first conductor segment 51, and the first gold ball 52 can be connected to the second conductor segment 54. It can be understood that the first gold ball 52 and the first connecting segment 53 are used to connect the main body of the same turn coil 5.

[0083] The second gold ball 55 is disposed between the first substrate 1 and the second substrate 2 and penetrates the frame adhesive 3, and the second connecting segment 56 is electrically connected to the second gold ball 55; so that the second conductor segment 54 can be electrically connected to the next turn of coil 5 through the second gold ball 55 and the second connecting segment 56. Specifically, one of the second gold ball 55 and the second connecting segment 56 is electrically connected to the second conductor segment 54, and the other is electrically connected to the first conductor segment 51 in the next turn of coil 5. The second gold ball 55 can be connected to the second conductor segment 54, and the second connecting segment 56 can be electrically connected to the first conductor segment 51 in the next turn of coil 5; or the second connecting segment 56 is electrically connected to the second conductor segment 54, and the second gold ball 55 is electrically connected to the first conductor segment 51 in the next turn of coil 5. It can be understood that the second gold ball 55 and the second connecting segment 56 are used to connect the main body parts of two adjacent turns of coil 5.

[0084] Thus, by placing the coil 5 within the first substrate 1 and the second substrate 2 of the liquid crystal display panel 10, the coil 5 is integrated into the internal film layer of the liquid crystal display panel 10, effectively saving space and facilitating the miniaturization design of the liquid crystal display panel 10.

[0085] like Figure 7 As shown, in a specific embodiment, the first connecting segment 53 and the second connecting segment 56 can both be disposed on the side of the first substrate 1 facing the liquid crystal layer 4. Specifically, one end of the first connecting segment 53 is electrically connected to the first conductive segment 51, and the other end is electrically connected to the first gold ball 52; one end of the second connecting segment 56 is electrically connected to the second gold ball 55, and the other end is electrically connected to the first conductive segment 51 in the next turn of the coil 5. The first connecting segment 53 is located within the projection range of the frame adhesive 3 at one end of the second conductive segment 54 along the thickness direction Z of the liquid crystal display panel 10 on the first substrate 1, and the second connecting segment 56 is located within the projection range of the frame adhesive 3 at the other end of the second conductive segment 54 along the thickness direction Z of the liquid crystal display panel 10 on the first substrate 1. This achieves an integrated design of the coil 5.

[0086] Of course, in other embodiments, the first connecting segment 53 may also be disposed on the side of the first substrate 1 facing the liquid crystal layer 4; the second connecting segment 56 may be disposed on the side of the second substrate 2 facing the liquid crystal layer 4. One end of the first connecting segment 53 is electrically connected to the first conductive segment 51, and the other end is electrically connected to the first gold ball 52; one end of the second connecting segment 56 is electrically connected to the second conductive segment 54, and the other end is electrically connected to the second gold ball 55.

[0087] Alternatively, the first connecting segment 53 can be disposed on the side of the second substrate 2 facing the liquid crystal layer 4; the second connecting segment 56 can be disposed on the side of the first substrate 1 facing the liquid crystal layer 4. One end of the first connecting segment 53 is electrically connected to the first gold ball 52, and the other end is electrically connected to the second conductive segment 54; one end of the second connecting segment 56 is electrically connected to the second gold ball 55, and the other end is electrically connected to the first conductive segment 51 in the next turn of the coil 5.

[0088] Alternatively, the first connecting segment 53 and the second connecting segment 56 can both be disposed on the side of the second substrate 2 facing the liquid crystal layer 4. One end of the first connecting segment 53 is electrically connected to the first gold ball 52, and the other end is electrically connected to the second conductive line segment 54; one end of the second connecting segment 56 is electrically connected to the second conductive line segment 54, and the other end is electrically connected to the second gold ball 55.

[0089] like Figure 6 As shown, in a specific embodiment, the liquid crystal display panel 10 may further include a first common electrode layer 7 disposed on the side of the first substrate 1 facing the liquid crystal layer 4, for providing a common voltage and forming an electric field with the pixel electrode to control the deflection of the liquid crystal molecules 41. The first common electrode layer 7 may be disposed in the same layer as the first conductive segment 51 at a distance, so that the first conductive segment 51 and the first common electrode layer 7 can be fabricated in the same process, thereby simplifying the panel structure and reducing manufacturing costs.

[0090] The liquid crystal display panel 10 may further include a second common electrode layer 8 disposed on the side of the second substrate 2 facing the liquid crystal layer 4, for providing a common voltage and forming an electric field with the pixel electrode to control the deflection of the liquid crystal molecules 41. The second common electrode layer 8 may be disposed in the same layer as the second conductive segment 54 at a distance, so that the second conductive segment 54 and the second common electrode layer 8 can be fabricated in the same process, thereby simplifying the panel structure and reducing manufacturing costs.

[0091] like Figure 6 As shown, in a specific embodiment, the liquid crystal display panel 10 may further include multiple parallel functional lines 6 to control the electric field between the pixel electrode and the common electrode, thereby controlling the display image of the liquid crystal display panel 10. The first conductive line segment 51 and the second conductive line segment 54 can both be arranged parallel to the functional lines 6 to avoid the coil 5 affecting the electric field between the pixel electrode and the common electrode when energized, thus preventing the deflection of the liquid crystal molecules 41; and also facilitating the fabrication of the first conductive line segment 51 and the second conductive line segment 54.

[0092] Specifically, the function line 6 can be a data line or a scan line; that is, the first conductor segment 51 and the second conductor segment 54 can be spaced apart on the first substrate 1 and the second substrate 2 respectively along the length direction X of the liquid crystal display panel 10, or they can be spaced apart on the first substrate 1 and the second substrate 2 respectively along the width direction Y of the liquid crystal display panel 10.

[0093] Among them, the function lines 6 corresponding to the first conductor segment 51 and the second conductor segment 54 in the same turn coil 5 can be two adjacent function lines 6; or, the function lines 6 corresponding to the first conductor segment 51 and the second conductor segment 54 in the same turn coil 5 can also be two spaced function lines 6, that is, there are multiple function lines 6 between the function lines 6 corresponding to the first conductor segment 51 and the second conductor segment 54.

[0094] See Figure 8 , Figure 8 This is a wiring diagram of the coil of a liquid crystal display panel provided in another embodiment of this application. In a specific embodiment, when both the first connecting segment 53 and the second connecting segment 56 are disposed on the side of the first substrate 1 facing the liquid crystal layer 4, some functional lines 6 can serve as the first conductive segment 51 to further simplify the panel structure and reduce manufacturing costs. The first connecting segment 53 and the second connecting segment 56 can be disposed on the same layer as the first conductive segment 51, and both the first connecting segment 53 and the second connecting segment 56 are provided with switches 57 for controlling whether the first connecting segment 53 and the second connecting segment 56 are conductive. The second conductive segment 54 is aligned with another portion of the adjacent functional lines 6.

[0095] Specifically, switch 57 can be a thin-film transistor (TFT) so that TFTs can be fabricated simultaneously on the first connection segment 53 and the second connection segment 56 when fabricating the TFT array on the first substrate 1, thereby avoiding increased fabrication processes and manufacturing costs. When switch 57 is in the on state, a portion of the functional line 6 is electrically connected to the second conductive segment 54 as the first conductive segment 51, and the coil 5 is energized to generate an alternating magnetic field. When switch 57 is in the off state, the first conductive segment 51 and the second conductive segment 54 in each turn of the coil 5 are disconnected, and the portion of the functional line 6 serves as a gate signal line or a data signal line to transmit electrical signals to control the deflection of the liquid crystal molecules 41, thereby displaying an image.

[0096] This application provides a liquid crystal display panel 10, which includes a first substrate 1, a second substrate 2, a liquid crystal layer 4, and a coil 5. The second substrate 2 is disposed opposite to the first substrate 1; the first substrate 1 and the second substrate 2 are fixedly connected by a frame adhesive 3, and the first substrate 1, the second substrate 2, and the frame adhesive 3 form a receiving cavity. The liquid crystal layer 4 is disposed within the receiving cavity; the liquid crystal layer 4 includes a plurality of liquid crystal molecules 41; the coil 5 is disposed around the liquid crystal layer 4; the coil 5 can generate a magnetic field to heat the liquid crystal molecules 41 when energized. The coil 5 is disposed around the axial direction of the liquid crystal display panel 10; the axial direction is parallel to the liquid crystal display panel 10. By setting a coil 5 on the liquid crystal display panel 10, when using the liquid crystal display panel 10 in a low-temperature environment, powering the coil 5 can generate an alternating magnetic field, thereby heating the liquid crystal molecules 41 using the principle of electromagnetic induction heating. This reduces the viscosity of the liquid crystal molecules 41, allowing them to rotate normally, improving the response speed of the liquid crystal display panel 10, avoiding ghosting and color trailing phenomena, and effectively improving the display effect of the liquid crystal display panel 10. Furthermore, by surrounding the liquid crystal layer 4 with the coil 5, placing the liquid crystal layer 4 at the center of the coil 5 with a strong magnetic field, the heating rate of the liquid crystal molecules 41 can be effectively increased, further improving the ghosting and color trailing phenomena.

[0097] See Figure 9 , Figure 9 This is a schematic diagram of a display device provided in one embodiment of this application; this application also provides a display device for displaying images. This display device can avoid ghosting and color blurring on the liquid crystal display panel 10, effectively improving the display effect of the liquid crystal display panel 10. It can also effectively increase the heating rate of the liquid crystal molecules 41, further improving the ghosting and color blurring phenomenon. The display device may include a liquid crystal display panel 10, a control unit 20, and a driver chip 40.

[0098] The liquid crystal display panel 10 is the liquid crystal display panel 10 involved in any of the above embodiments.

[0099] The control unit 20 is electrically connected to the coil 5 of the liquid crystal display panel 10 and is used to control whether to energize the coil 5 so as to control whether the coil 5 generates a magnetic field.

[0100] In a specific embodiment, the display device may further include a temperature sensor 30 for detecting the temperature of the liquid crystal display panel 10, or directly for detecting the ambient temperature. Specifically, the temperature sensor 30 is electrically connected to one end of the control unit 20, and the control unit 20 controls whether to energize the coil 5 based on the acquired temperature parameters. It can be understood that when the temperature is less than or equal to a preset temperature, the control unit 20 can energize the coil 5 to heat the liquid crystal molecules 41; when the temperature is greater than the preset temperature, the control unit 20 will not energize the coil 5. Specifically, the preset temperature can be the temperature of the liquid crystal freezing point, such as -20°C.

[0101] One end of the driver chip 40 is electrically connected to the driving circuit layer of the liquid crystal display panel 10, and is used to transmit driving signals to the driving circuit layer and control the liquid crystal display panel 10 to switch between display frames and black frames. Those skilled in the art will understand that when the liquid crystal display panel 10 displays dynamic images, due to the relatively long response time of the liquid crystal molecules 41, the image of the previous frame still remains in the next frame, causing blurring in fast-moving images, resulting in image overlap and blurring. By employing black frame insertion technology, a black frame is inserted between two display frames, causing the image of the previous frame to disappear, thereby reducing afterimages and motion blur.

[0102] The other end of the driver chip 40 is electrically connected to the control unit 20, and is used to transmit a heating signal to the control unit 20 and enable the control unit 20 to energize the coil 5. By electrically connecting the driver chip 40 to both the drive circuit layer and the control unit 20, the driver chip 40 can control the working state of the coil 5 according to the display state of the liquid crystal display panel 10.

[0103] In response to the driver chip 40 controlling the liquid crystal display panel 10 to be in a black frame, the control unit 20 energizes the coil 5 so that the coil 5 can generate a magnetic field to heat the liquid crystal molecules 41 when the liquid crystal display panel 10 is in a black frame; in response to the driver chip 40 controlling the liquid crystal display panel 10 to be in a display frame, the control unit 20 stops energizing the coil 5 to avoid the coil 5 interfering with the normal display screen of the liquid crystal display panel 10 after being energized.

[0104] See Figure 10 , Figure 10This is a schematic diagram of a display device module provided in another embodiment of this application. In a specific embodiment, if some function lines 6 in the liquid crystal display panel 10 serve as the first conductor segment 51 of the coil 5, that is, a switch 57 is provided on the first connecting segment 53 and the second connecting segment 56 of the coil 5, then the control unit 20 can also be electrically connected to the switch 57 of the coil 5 to control the switch 57 to be in the on-circuit state or the off-circuit state, so as to control whether the first connecting segment 53 and the second connecting segment 56 are connected, thereby controlling whether the coil 5 can be energized and generate a magnetic field.

[0105] Specifically, in response to the driver chip 40 controlling the liquid crystal display panel 10 to be in a black frame, the control unit 20 controls the switch 57 to be in the on state, so that the first connecting segment 53 and the second connecting segment 56 of the coil 5 are in the conducting state. At this time, the functional line 6 connected to the first connecting segment 53 and the second connecting segment 56 is connected to the first conductor segment 51 and the second conductor segment 54 to form the coil 5, and is energized to generate a magnetic field to heat the liquid crystal molecules 41.

[0106] In response to the driver chip 40 controlling the liquid crystal display panel 10 to be in a display frame, the control unit 20 controls the switch 57 to be open, so that the first connection segment 53 and the second connection segment 56 are in an open state. At this time, some of the function lines 6 connected to the first connection segment 53 and the second connection segment 56 still serve as data lines or gate scan lines, and cooperate with the remaining function lines 6 to control the deflection of the liquid crystal molecules 41 to display the image.

[0107] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations 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 patent protection scope of this application.

Claims

1. A liquid crystal display panel, characterized in that, include: First substrate; The second substrate is disposed opposite to the first substrate; the first substrate and the second substrate are fixedly connected by frame adhesive, and the first substrate, the second substrate and the frame adhesive surround to form a receiving cavity; A liquid crystal layer is disposed within the receiving cavity; the liquid crystal layer comprises a plurality of liquid crystal molecules; A coil is disposed around the liquid crystal layer; the coil is capable of generating a magnetic field to heat the liquid crystal molecules when energized. The coil is arranged around the axial direction of the liquid crystal display panel; the axial direction is parallel to the liquid crystal display panel; the coil is a multi-turn coil; each turn of the coil includes: A first conductive segment is disposed on the side of the first substrate facing the liquid crystal layer; The first gold ball is disposed between the first substrate and the second substrate and penetrates the frame adhesive; The first connecting segment is electrically connected to the first gold ball; The second conductive segment is disposed on the side of the second substrate facing the liquid crystal layer; and the first conductive segment and the second conductive segment are offset from each other; one of the first gold ball and the first connecting segment is electrically connected to the first conductive segment, and the other is electrically connected to the second conductive segment; The second gold ball is disposed between the first substrate and the second substrate and penetrates the frame adhesive; The second connecting segment is electrically connected to the second gold ball; Wherein, one of the second gold ball and the second connecting segment is electrically connected to the second conductor segment, and the other is electrically connected to the first conductor segment in the next turn of the coil; or Each turn of the coil includes: The first conductive segment is disposed on the side of the first substrate away from the liquid crystal layer; The second conductive segment is disposed on the side of the second substrate away from the liquid crystal layer; and the first conductive segment and the second conductive segment are offset from each other. Two welding lines; one of the two welding lines is electrically connected to the first conductor segment and the second conductor segment respectively, and one end of the other line is electrically connected to the second conductor segment, and the other end is electrically connected to the first conductor segment in the next turn of the coil.

2. The liquid crystal display panel according to claim 1, characterized in that, The first connecting segment is disposed on the side of the first substrate facing the liquid crystal layer; the second connecting segment is disposed on the side of the second substrate facing the liquid crystal layer; or The first connecting segment is disposed on the side of the second substrate facing the liquid crystal layer; the second connecting segment is disposed on the side of the first substrate facing the liquid crystal layer; or Both the first connecting segment and the second connecting segment are disposed on the side of the first substrate facing the liquid crystal layer; or Both the first connecting segment and the second connecting segment are disposed on the side of the second substrate facing the liquid crystal layer.

3. The liquid crystal display panel according to claim 1, characterized in that, The liquid crystal display panel also includes multiple parallel function lines; the first conductor segment and the second conductor segment are both arranged parallel to the function lines; the function lines are data lines or scan lines.

4. The liquid crystal display panel according to any one of claims 1-3, characterized in that, Also includes: A first common electrode layer is disposed on the side of the first substrate facing the liquid crystal layer; and the first conductive segment is disposed at a distance from the first common electrode layer in the same layer. The second common electrode layer is disposed on the side of the second substrate facing the liquid crystal layer; and the second conductive line segment is disposed at a distance from the second common electrode layer in the same layer.

5. The liquid crystal display panel according to claim 4, characterized in that, Both the first connecting segment and the second connecting segment are disposed on the side of the first substrate facing the liquid crystal layer; A portion of the functional lines serve as the first conductor segment; and both the first connecting segment and the second connecting segment are equipped with switches to control whether the first connecting segment and the second connecting segment are connected. The second conductor segment is aligned with the adjacent functional line of another portion.

6. The liquid crystal display panel according to claim 1, characterized in that, Also includes: A sealing layer covers the surface of the coil and the outer surfaces of the first substrate, the second substrate, and the frame adhesive that are not covered by the coil.

7. A display device, characterized in that, include: A liquid crystal display panel, wherein the liquid crystal display panel is the liquid crystal display panel as described in any one of claims 1-6; The control unit is electrically connected to the coil of the liquid crystal display panel and is used to control whether to energize the coil; A driving chip; one end of the driving chip is electrically connected to the driving circuit layer of the liquid crystal display panel, and is used to transmit driving signals to the driving circuit layer and control the liquid crystal display panel to switch between display frames and black frames; the other end of the driving chip is electrically connected to the control unit, and is used to transmit heating signals to the control unit and control the control unit to energize the coil; Specifically, when the driving chip controls the liquid crystal display panel to be in the black frame, the control unit energizes the coil; when the driving chip controls the liquid crystal display panel to be in the display frame, the control unit stops energizing the coil.

8. The display device according to claim 7, characterized in that, The control unit is electrically connected to the switch of the coil and is used to control the switch; In response to the driver chip controlling the liquid crystal display panel to be in the black frame, the control unit controls the switch to be on, so that the first connection segment and the second connection segment of the coil are in the conducting state; In response to the driver chip controlling the liquid crystal display panel to be in the display frame, the control unit controls the switch to be open, so that the first connection segment and the second connection segment are in a disconnected state.

Citation Information

Patent Citations

  • Liquid-crystal display

    CN102914896A

  • Display device

    CN116520605A