Liquid crystal display device and liquid crystal display panel

Abstract

The invention discloses a liquid crystal display device and a liquid crystal display panel. The liquid crystal display device includes: a lower substrate including an open area through which light is transmitted to achieve a color and a non-open area in which a gate line and a common line extending in a first direction are disposed; an upper substrate disposed to face the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; an organic layer disposed in the non-opening region of the lower substrate; and a first columnar spacer and a second columnar spacer disposed on a lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from an upper surface of the organic layer in the non-open region of the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

Description

Technical Field

[0001] This disclosure relates to liquid crystal display devices, and more specifically, for example, but not limited to, liquid crystal display devices and liquid crystal display panels that can prevent damage to the alignment film in the opening region due to the intrusion of columnar spacers into the opening region. Background Technology

[0002] Liquid crystal displays (LCDs) are used in various electronic devices such as televisions, mobile phones, laptops, and tablets. LCDs display images by controlling the transmittance of liquid crystals using an electric field. Based on the direction of the electric field driving the liquid crystals, LCDs can be classified into vertical electric field type and horizontal electric field type.

[0003] The liquid crystal display device includes a color filter substrate, an array substrate, and a liquid crystal layer formed between the color filter substrate and the array substrate. Furthermore, the liquid crystal display device has columnar spacers on the color filter substrate or the array substrate to maintain the cell gap between the color filter substrate and the array substrate or to prevent pressing defects.

[0004] The description provided in the Background section should not be assumed to be prior art simply because it is mentioned in or associated with the description in the Background section. The Background section may include information describing one or more aspects of the subject matter art, and the description in this section does not limit this disclosure. Summary of the Invention

[0005] The inventors have recognized that in related technologies, when an external force is applied to a liquid crystal display device, the surface of the lower alignment film of the array substrate may be damaged by the movement of columnar spacers formed in the non-opening region of the color filter substrate. The alignment of the liquid crystal becomes disordered due to the damage to the lower alignment film, thereby causing light leakage defects in areas where the fundamental alignment of the liquid crystal has been altered.

[0006] Recently, liquid crystal display devices have been developed in which the color filter is mounted on the color filter substrate and the black matrix is ​​mounted on the array substrate; that is, liquid crystal display devices with a TFT color filter (COT) structure. Compared with conventional structures, this COT structure has the advantages of increasing brightness by increasing the aperture area and preventing light leakage due to bonding errors.

[0007] Even in liquid crystal display devices with a COT structure, the alignment film in the opening region can be damaged by the intrusion of columnar spacers into the opening region.

[0008] Therefore, the object of this disclosure is to provide a liquid crystal display device in which damage to the alignment film in the opening region can be prevented due to the intrusion of columnar spacers into the opening region.

[0009] The purpose of this disclosure is also to provide a display device that can increase lifespan, reduce the production energy required for production, and reduce greenhouse gas emissions.

[0010] The purpose of this disclosure is not limited to the above-mentioned purposes, and other purposes not mentioned will be clearly understood by those skilled in the art based on the following description.

[0011] According to an exemplary embodiment of this disclosure, a liquid crystal display device is provided, comprising: a lower substrate including an open area and a non-open area, through which light is transmitted to achieve color, and a gate line and a common line extending along a first direction disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; a plurality of color filters stacked on the gate line and the common line in the non-open area of ​​the lower substrate; an organic layer disposed on the plurality of color filters in the non-open area of ​​the lower substrate; and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0012] According to an exemplary embodiment of this disclosure, a liquid crystal display device is provided, comprising: a lower substrate including an open area and a non-open area, wherein light is transmitted through the open area to achieve color, and a gate line and a common line extending along a first direction are disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; an organic layer disposed in the non-open area of ​​the lower substrate on the gate line and the common line; and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0013] According to an exemplary embodiment of this disclosure, a liquid crystal display panel is provided, comprising: a lower substrate including an open area and a non-open area, through which light is transmitted to achieve color, and a gate line and a common line extending along a first direction disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; a plurality of color filters stacked on the gate line and the common line in the non-open area of ​​the lower substrate; an organic layer disposed on the plurality of color filters in the non-open area of ​​the lower substrate, and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0014] According to an exemplary embodiment of this disclosure, a liquid crystal display panel is provided, comprising: a lower substrate including an open area and a non-open area, wherein light is transmitted through the open area to achieve color, and a gate line and a common line extending along a first direction are disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; an organic layer disposed in the non-open area of ​​the lower substrate on the gate line and the common line; and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0015] According to an exemplary embodiment of this disclosure, by forming dams on the upper surface of an organic layer covering a color filter disposed in a non-opening region and arranging columnar spacers between the dams, it is possible to prevent the columnar spacers from intruding into the opening region and damaging the orientation film in the opening region.

[0016] Furthermore, according to an exemplary embodiment of this disclosure, by arranging a first dam around the first columnar spacer and a second dam around the second columnar spacer and forming a first dam with a height greater than the second dam, even when an external force is applied to the extent that the first columnar spacer moves and climbs on the first dam, the second columnar spacer can be positioned spaced apart from the second dam or supported by the second dam, thereby preventing the second columnar spacer from intruding into the opening area.

[0017] Furthermore, according to an exemplary embodiment of this disclosure, by making the height of the second dam portion around the second columnar spacer, which has a higher arrangement density than the first columnar spacer, smaller than the height of the first dam portion around the first columnar spacer, and by making the length of the second dam portion around the second columnar spacer the same as the diameter of the second columnar spacer, the occurrence of liquid crystal diffusion defects and alignment film coating defects due to the additional arrangement of the second dam portion can be prevented.

[0018] In addition, according to an exemplary embodiment of this disclosure, since the first dam section has an inclined side surface, the first columnar spacer can be guided back to its original position when the external force is removed.

[0019] According to exemplary embodiments of this disclosure, light leakage defects in the display device caused by columnar spacers intruding into the opening area can be prevented, thereby increasing the lifespan of the display device, reducing the production energy required to produce the display device, and reducing greenhouse gas emissions.

[0020] The effects of this disclosure are not limited to those described above, and based on the above detailed description, those skilled in the art will be able to clearly understand other effects not mentioned. Attached Figure Description

[0021] The following accompanying drawings illustrate exemplary embodiments of the invention and, together with the specific embodiments of the invention described below, serve to further understand the technical concept of the invention. Therefore, the invention should not be construed as limited to the contents described in these drawings, wherein:

[0022] Figure 1 This is a plan view illustrating a sub-pixel of a display device according to an exemplary embodiment of the present disclosure.

[0023] Figure 2 yes Figure 1 A partial enlarged view of the display device.

[0024] Figure 3 It is along Figure 2 A cross-sectional view of the display device with line III-III'.

[0025] Figure 4 It is along Figure 2 A cross-sectional view of the display device with line IV-IV' in the middle.

[0026] Figure 5 It is along Figure 2 A cross-sectional view of the display device with line V-V' in the figure.

[0027] Figure 6 and Figure 7 This is a cross-sectional view showing the application of an external force to a display device according to an exemplary embodiment of the present disclosure.

[0028] Figure 8 This is a diagram illustrating a method of manufacturing a display device according to an exemplary embodiment of the present disclosure.

[0029] Figure 9 This is a cross-sectional view of a display device according to an exemplary embodiment of the present disclosure.

[0030] Figure 10 This is a diagram illustrating a method of manufacturing a display device according to an exemplary embodiment of the present disclosure.

[0031] Throughout the accompanying drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative sizes and descriptions of these elements may be exaggerated. Detailed Implementation

[0032] Reference will now be made in detail to embodiments of this disclosure, examples of which are illustrated in the accompanying drawings. The described progression of processing steps and / or operations is illustrative; however, the order of steps and / or operations is not limited to that described herein and can be varied as is known in the art, except for steps and / or operations that must occur in a specific order. The names of the various elements used in the following explanation may have been chosen merely for convenience of writing the specification and may therefore differ from the names used in actual products.

[0033] The advantages and features of this disclosure, as well as the methods for implementing them, will become clear from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, this disclosure is not limited to the embodiments disclosed below, but will be implemented in various different forms. These embodiments are provided only to make the disclosure complete and to fully inform those skilled in the art of the scope of this disclosure.

[0034] Since the shapes, sizes, dimensions (e.g., length, width, height, thickness, radius, diameter, area, etc.), ratios, angles, quantities, etc. disclosed in the accompanying drawings for describing embodiments of the present disclosure are illustrative, the present disclosure is not limited to the items shown.

[0035] The dimensions of the various components shown in the accompanying drawings, including size and thickness, are shown for ease of description, and this disclosure is not limited to the size and thickness of the components shown. However, it should be noted that the relative dimensions of the components shown in the various accompanying drawings, including relative size, position, and thickness, are part of this disclosure.

[0036] Throughout this specification, the same reference numerals denote the same components. Furthermore, in describing this disclosure, detailed descriptions of relevant known technologies will be omitted where it is determined that such detailed descriptions might unnecessarily obscure the spirit of this disclosure. When terms such as “comprising,” “having,” “including,” “containing,” “constituting,” “made of,” “formed from,” “composed of,” etc., are used herein, additional parts may be added unless “only” is used. When a component is indicated in the singular, it includes cases where the component is provided as multiple components, unless otherwise specified.

[0037] When interpreting a component, it is interpreted as including an error tolerance even if there is no separate explicit description related to the error tolerance.

[0038] When describing positional relationships, for example, when using terms such as "on," "above," "above," "below," "below," "next to," "under," "near," "close to," "adjacent to," "on the side," "near," etc. to describe the positional relationship between two parts, one or more other parts may be located between the two parts, for example, unless "exactly," "directly," or "closely to" are used.

[0039] When describing temporal relationships, the use of words such as "after," "following," "then," and "before" can also include non-continuous cases unless "exactly" or "directly" is used.

[0040] Although terms such as "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component described below can be a second component within the technical spirit of this disclosure.

[0041] In the description of the components disclosed herein, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only for the purpose of distinguishing one component from another, and the nature, order, sequence, etc., of the respective components are not limited by these terms.

[0042] When a component is described as “connected,” “joined,” “joined,” or “attached” to another component, that component may be directly connected, joined, joined, or attached to the other component. However, it should be understood that, unless otherwise specified, another component may be located between components that may be indirectly connected, joined, joined, or attached.

[0043] When a component or layer is described as "in contact" or "overlapping" with another component or layer, the component or layer may be in direct contact or directly overlap with the other component or layer. However, it should be understood that, unless otherwise specified, another component may be located between components that may be in indirect contact or indirectly overlap with each other.

[0044] It should be understood that "at least one" includes any combination of one or more associated components. For example, "at least one of the first component, the second component, and the third component" can include not only the first component, the second component, or the third component, but also any combination of two or more of the first component, the second component, and the third component.

[0045] The terms “first direction,” “second direction,” “third direction,” “X-axis direction,” “Y-axis direction,” and “Z-axis direction” should not be interpreted as merely a geometric relationship in which the relationship between them is perpendicular, but can refer to a wider range of directions within which the configuration of this disclosure can be functionally effective.

[0046] As used herein, the term "device" can refer to a display device that includes a display panel and a driver for driving the display panel. Examples of display devices may include light-emitting elements, etc. Additionally, examples of devices may include laptops, televisions, computer monitors, automotive devices, wearable devices, and automotive equipment devices, as well as assemblies of electronic devices (or equipment) or assemblies (or devices) that include light-emitting elements, etc., as complete products or end products, such as mobile electronic devices like smartphones or tablets, but embodiments of this disclosure are not limited thereto.

[0047] Features of the various embodiments of this disclosure can be linked or combined in part or in whole, enabling interoperability and driving of various technologies, and the embodiments can be implemented independently of each other or together in an associated relationship.

[0048] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments pertain. It will be further understood that terms, such as those defined in commonly used dictionaries, shall be interpreted as having a meaning consistent with, for example, their meaning in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0049] In this disclosure, for ease of description, the source electrode and the drain electrode are distinguished from each other. However, the source electrode and the drain electrode are used interchangeably. A source electrode can be a drain electrode, and a drain electrode can be a source electrode. Furthermore, a source electrode in any aspect of this disclosure can be a drain electrode in another aspect of this disclosure, and a drain electrode in any aspect of this disclosure can be a source electrode in another aspect of this disclosure.

[0050] Various exemplary embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0051] Figure 1 This is a plan view of a liquid crystal display device according to an exemplary embodiment of the present disclosure. Figure 2 yes Figure 1 A partial enlarged view of the display device. Figure 3 It is along Figure 2 A cross-sectional view of the display device for line III-III'. Figure 4 It is along Figure 2 A cross-sectional view of the display device with line IV-IV' in the middle. Figure 5 It is along Figure 2 The image shows a cross-sectional view of the display device along line V-V'. A liquid crystal display device according to an exemplary embodiment of this disclosure will be described as an edge field switching (FFS) type liquid crystal display device, but is not limited thereto, and may also be an in-panel switching (IPS) type liquid crystal display device.

[0052] Reference Figure 1 A liquid crystal display device according to an exemplary embodiment of the present disclosure includes intersecting gate lines 112 and data lines 114, a common line 113 adjacent to the gate line 112, and thin-film transistors (TFTs) located in the intersection region of the gate lines 112 and data lines 114. A plurality of sub-pixels may be defined by the intersection structure of the gate lines 112 and data lines 114. Each sub-pixel may include an aperture region PA and a non-aperture region NPA, where light can be transmitted through the aperture region PA to achieve color, and light may not be transmitted through the non-aperture region NPA. The gate line 112, the common line 113, and the thin-film transistors (TFTs) may be disposed in the non-aperture region NPA. The aperture region PA and the non-aperture region NPA may be regions of the lower substrate. A liquid crystal display device according to an exemplary embodiment of the present disclosure may include three sub-pixels, for example, a red sub-pixel SP1, a green sub-pixel SP2, and a blue sub-pixel SP3.

[0053] Furthermore, each pixel may also include a white subpixel. Multiple subpixels can be modified in various ways in terms of color and configuration as needed. However, this disclosure is not limited thereto.

[0054] For example, multiple sub-pixels may include red, green, and blue sub-pixels, wherein the red, green, and blue sub-pixels may be arranged in a repeating manner. Alternatively, multiple sub-pixels may include red, green, blue, and white sub-pixels, wherein the red, green, blue, and white sub-pixels may be arranged in a repeating manner, or the red, green, blue, and white sub-pixels may be arranged in a quadrilateral pattern. For example, the red, blue, and green sub-pixels may be arranged sequentially along the row direction, or the red, blue, green, and white sub-pixels may be arranged sequentially along the row direction. However, in embodiments of this disclosure, the color type, arrangement type, and arrangement order of the sub-pixels are not limited and can be configured in various forms according to light-emitting characteristics, device lifetime, and device specifications.

[0055] Furthermore, depending on their light-emitting characteristics, sub-pixels can have different light-emitting areas. For example, a sub-pixel that emits light of a different color than the blue sub-pixel can have a different light-emitting area than the blue sub-pixel. For example, red, blue, and green sub-pixels, or red, blue, white, and green sub-pixels, can each have different light-emitting areas.

[0056] The gate line 112 may extend in the first direction DR1. The data line 114 may extend in the second direction DR2, which intersects the first direction DR1. The data line 114 may have a curved structure.

[0057] The common line 113 can be positioned adjacent to the upper or lower side of the gate line 112 in the plan view. The common line 113 can extend parallel to the gate line 112.

[0058] Each of sub-pixels SP1, SP2, and SP3 includes a thin-film transistor (TFT) connected to gate line 112 and data line 114. The TFT includes a gate electrode 116a extending from gate line 112, a source electrode 116b extending from data line 114 and disposed on gate electrode 116a in a U-shape, for example, and a drain electrode 116c spaced a predetermined distance from source electrode 116b and extending into the interior of the U-shaped pattern of source electrode 116b. In this configuration, a semiconductor layer is interposed between the layer of gate electrode 116a and the layers of source electrode 116b / drain electrode 116c.

[0059] The source electrode 116b can be connected to the data line 114 via the source connection pattern 117. For example, the source connection pattern 117 may include two patterns 117a and 117b located on both sides of the gate line 112.

[0060] The gate line 112 and the common line 113 with gate electrode 116a can be formed on the same plane or the same layer, but are not limited thereto.

[0061] Data line 114, source electrode 116b / drain electrode 116c, and conductive pattern 121 extending from drain electrode 116c can all be formed on the same plane or the same layer, but are not limited thereto.

[0062] Each of the sub-pixels SP1, SP2, and SP3 includes a first electrode 141 electrically connected to the drain electrode 116c of the thin-film transistor TFT and a second electrode 143 electrically connected to the common line 113. For example, the first electrode 141 and the second electrode 143 may be located on the same plane, but are not limited thereto.

[0063] A data voltage is supplied to the first electrode 141 via data line 114. A reference voltage, such as a common voltage, for driving the liquid crystal is supplied to the second electrode 143 via common line 113. Therefore, an electric field is generated between the first electrode 141 to which the data voltage is supplied and the second electrode 143 to which the common voltage is supplied. Furthermore, the transmittance of the aperture region PA of the sub-pixel depends on the degree of rotation of the liquid crystal molecules according to the electric field. The first electrode 141 can be a pixel electrode, and the second electrode 143 can be a common electrode.

[0064] The first electrode 141 may include two or more first branches 141a and a first connecting portion 141b connecting the first branches 141a. The first branches 141a of the first electrode 141 may have a curved structure. The second electrode 143 may include two or more second branches 143a and a second connecting portion 143b connecting the second branches 143a. The second branches 143a of the second electrode 143 may have a curved structure. The second connecting portion 143b may have a portion overlapping with the data line 114. The branches 141a of the first electrode 141 and the branches 141a of the second electrode 143 may be alternately arranged in the opening region PA of the sub-pixel. Because the first electrode 141 and the second electrode 143 have curved structures, the liquid crystal molecules are oriented in two directions to form two domains, thereby further improving the viewing angle compared to a single domain. However, the exemplary embodiments of this disclosure are not limited to liquid crystal display devices with a dual-domain structure, and may also be liquid crystal display devices with a multi-domain structure including two or more domains and a single-domain structure.

[0065] The first electrode 141 can be electrically connected to the conductive pattern 121 extending from the drain electrode 116c through a contact hole passing through an insulating layer disposed on the drain electrode 116c and the conductive pattern 121. The conductive pattern 121 may overlap with a portion of the common line 113. Therefore, the conductive pattern 121 and the common line 113 can be used as a storage capacitor, which maintains the data voltage supplied through the data line 114 until the next frame.

[0066] The second electrode 143 can be electrically connected to the common line 113 through a contact hole that passes through the insulating layer provided on the common line 113.

[0067] A liquid crystal display device according to an exemplary embodiment of the present disclosure may include a first columnar spacer CS1, a first dam DM1, a second columnar spacer CS2, and a second dam DM2. The first columnar spacer CS1, the first dam DM1, the second columnar spacer CS2, and the second dam DM2 may be disposed in a non-opening region NPA.

[0068] The first columnar spacer CS1 can be disposed in the space provided between two first dam portions DM1 spaced apart from each other in the second direction DR2. The first columnar spacer CS1 can be a gap spacer used to maintain a constant unit gap between the lower substrate and the upper substrate.

[0069] The second columnar spacer CS2 can be disposed in the space between two second dam sections DM2 that are spaced apart from each other in the second direction DR2. The second columnar spacer CS2 can be a push spacer used to prevent deformation of the element gap from becoming too narrow due to external forces.

[0070] The arrangement density of the first columnar spacer CS1 can be less than the arrangement density of the second columnar spacer CS2. The height of the second columnar spacer CS2 can be less than the height of the first columnar spacer. For example... Figure 1 As shown, the first columnar spacer CS1 and the second columnar spacer CS2 can be disposed in the boundary region of the sub-pixel, but are not limited thereto.

[0071] Reference Figure 2 The first dam section DM1 may have a strip shape, having a first length L1 in a first direction DR1 and a first width W1 in a second direction DR2. The first width W1 of the first dam section DM1 may be greater than the diameter CD1 of the first columnar spacer CS1. The first length L1 of the first dam section DM1 may be greater than the diameter CD1 of the first columnar spacer CS1.

[0072] The second dam DM2 can have a strip shape, having a second length L2 in the first direction DR1 and a second width W2 in the second direction DR2. The second width W2 of the second dam DM2 can be smaller than the diameter CD2 of the second columnar spacer CS2. The second length L2 of the second dam DM2 can be the same as the diameter CD2 of the second columnar spacer CS2. By making the second length L2 of the second dam DM2 around the second columnar spacer CS2, which has a higher arrangement density than the first columnar spacer CS1, the diameter CD2 of the second columnar spacer CS2 is the same, preventing liquid crystal diffusion defects and alignment film coating defects due to the additional arrangement of the second dam DM2.

[0073] Reference Figure 2 and Figure 3 The gate electrode 116a and the common line 113 may be disposed on the non-opening region NPA of the lower substrate 110 of the liquid crystal display device according to an exemplary embodiment of the present disclosure. As described above, the gate electrode 116a may extend from the gate line 112. The lower substrate 110 may be formed of transparent glass or plastic. For example, the lower substrate 110 may include a flexible polymer film. For example, the flexible polymer film may be made of any one of polyimide (PI), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polycarbonate (PC), polyethersulfone (PES), polyarylate (PAR), polysulfone (PSF), cyclic olefin copolymer (COC), triacetyl cellulose (TAC), polyvinyl alcohol (PVA), and polystyrene (PS), and the present disclosure is not limited thereto.

[0074] A gate insulating layer 118 may be disposed on the gate electrode 116a and the common line 113. The gate insulating layer 118 may also be disposed in the non-opening region NPA and the open region PA of the lower substrate 110. The gate insulating layer 118 may be formed of an inorganic insulating material. For example, the gate insulating layer 118 may be composed of a single layer or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx). For example, the gate insulating layer 118 may be formed by a single layer or multiple layers of inorganic films. For example, a single layer of inorganic film may be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, while multiple layers of inorganic films may be formed by alternately stacking one or more layers of silicon oxide (SiOx) film, one or more layers of silicon nitride (SiNx) film, and one or more layers of amorphous silicon (a-Si), but the exemplary embodiments of this disclosure are not limited thereto.

[0075] The semiconductor layer 116d overlapping the gate electrode 116a may be disposed on the gate insulating layer 118. The semiconductor layer 116d may include amorphous silicon, polycrystalline silicon, or oxide semiconductor.

[0076] Oxide semiconductor materials offer excellent leakage current prevention and relatively low manufacturing costs. Oxide semiconductors can be made from metal oxides such as zinc (Zn), indium (In), gallium (Ga), tin (Sn), and titanium (Ti), or combinations of metals and their oxides such as zinc (Zn), indium (In), gallium (Ga), tin (Sn), or titanium (Ti). Specifically, oxide semiconductors can include, but are not limited to, zinc oxide (ZnO), zinc tin oxide (ZTO), zinc indium oxide (ZIO), indium oxide (InO), titanium oxide (TiO), indium gallium zinc oxide (IGZO), indium zinc tin oxide (IZTO), indium zinc oxide (IZO), indium gallium tin oxide (IGTO), and indium gallium oxide (IGO).

[0077] Polycrystalline semiconductor materials exhibit high mobility due to the fast movement speed of charge carriers such as electrons and holes, resulting in low energy consumption and excellent reliability. Polycrystalline semiconductors can be made of polycrystalline silicon (poly-Si), but are not limited to this.

[0078] Amorphous semiconductor materials can be made of amorphous silicon (a-Si), but are not limited to this.

[0079] The source electrode 116b can be disposed on a portion of the semiconductor layer 116d, and the drain electrode 116c can be disposed on another portion of the semiconductor layer 116d. An ohmic contact layer can be inserted between the semiconductor layer 116d and the source electrode 116b, and between the semiconductor layer 116d and the drain electrode 116c.

[0080] Conductive pattern 121 may be disposed on gate insulating layer 118 to overlap with common line 113. Conductive pattern 121 may extend from drain electrode 116c. Common line 113 and conductive pattern 121 may form storage capacitor.

[0081] The passivation layer 120 may cover the source electrode 116b, drain electrode 116c, and conductive pattern 121, and may be disposed on the gate insulating layer 118. The passivation layer 120 may be disposed in the non-opening region NPA and the open region PA of the lower substrate 110. For example, the passivation layer 120 may be composed of a single layer or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx) as inorganic film materials, but the exemplary embodiments of this disclosure are not limited thereto. For example, the passivation layer 120 may be a protective layer or an insulating layer, but the exemplary embodiments of this disclosure are not limited thereto.

[0082] A red color filter RCF can be disposed on the passivation layer 120. The red color filter RCF can also be disposed in the non-aperture region NPA and the aperture region PA of the lower substrate 110. A blue color filter BCF can be disposed on the red color filter RCF in the non-aperture region NPA of the lower substrate 110. The red color filter RCF and blue color filter BCF, which are configured to overlap each other in the non-aperture region NPA of the lower substrate 110, can serve as a black matrix to block the transmission of visible light.

[0083] The organic layer 130 can be disposed on the red color filter RCF and the blue color filter BCF. For example, the organic layer 130 can be formed from materials such as acrylic-based materials, epoxy-based materials, phenolic-based materials, polyamide-based materials, or polyimide-based materials, but is not limited thereto. The organic layer 130 can be formed from a photosensitive organic insulating material. For example, the organic layer 130 can be formed from a photoacrylic resin.

[0084] The first electrode 141 and the second electrode 143 can be disposed on the organic layer 130. The first connection portion 141b of the first electrode 141 can be connected to the conductive pattern 121 through the organic layer 130, the blue filter BCF, the red filter RCF, and the passivation layer 120 in the non-opening region NPA of the lower substrate 110. The second connection portion of the second electrode 143 can be connected to the common line 113 through the organic layer 130, the blue filter BCF, the red filter RCF, the passivation layer 120, and the gate insulating layer 118 in the non-opening region NPA of the lower substrate 110. The first branch 141a of the first electrode 141 and the second branch 143a of the second electrode 143 can be disposed in the opening region PA of the lower substrate 110. The first electrode 141 and the second electrode 143 can be formed of a transparent conductive oxide, for example, indium tin oxide (ITO) and indium zinc oxide (IZO), but are not limited thereto.

[0085] An alignment film (not shown) covering the first electrode 141 and the second electrode 143 may be disposed on the organic layer 130.

[0086] The upper substrate 210 may be disposed on the organic layer 130. An alignment film (not shown) may be disposed on the lower surface of the upper substrate 210. A liquid crystal layer may be disposed between the organic layer 130 and the upper substrate 210.

[0087] Reference Figure 2 and Figure 4 The gate electrode 116a and the common line 113 may be disposed in the non-opening region NPA of the lower substrate 110 of the liquid crystal display device according to an exemplary embodiment of the present disclosure.

[0088] A gate insulating layer 118 may be disposed on the gate line 112 and the common line 113. The gate insulating layer 118 may also be disposed in the non-opening region NPA and the open region PA of the lower substrate 110. The gate insulating layer 118 may be formed of an inorganic insulating material. For example, the gate insulating layer 118 may be composed of a single layer or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx). For example, the gate insulating layer 118 may be formed by a single layer or multiple layers of inorganic films. For example, a single layer of inorganic film may be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, while multiple layers of inorganic films may be formed by alternately stacking one or more layers of silicon oxide (SiOx) film, one or more layers of silicon nitride (SiNx) film, and one or more layers of amorphous silicon (a-Si), but the exemplary embodiments of this disclosure are not limited thereto.

[0089] Passivation layer 120 may be disposed on gate insulating layer 118. Passivation layer 120 may be disposed in non-opening region NPA and open region PA of lower substrate 110. For example, passivation layer 120 may be composed of single or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx) as inorganic film materials, but the exemplary embodiments of this disclosure are not limited thereto. For example, passivation layer 120 may be a protective layer or an insulating layer, but the exemplary embodiments of this disclosure are not limited thereto.

[0090] A red color filter (RCF) and a green color filter (GCF) can be disposed on the passivation layer 120. The red color filter (RCF) can be disposed in the non-aperture region NPA of the lower substrate 110. The green color filter (GCF) can be disposed in the aperture region PA of the lower substrate 110. A blue color filter (BCF) can be disposed on top of the red color filter (RCF) in the non-aperture region NPA of the lower substrate 110. The red color filter (RCF) and blue color filter (BCF) arranged to overlap each other in the non-aperture region NPA of the lower substrate 110 can serve as a black matrix to block the transmission of visible light.

[0091] The organic layer 130 can be disposed on the red color filter RCF and the blue color filter BCF. For example, the organic layer 130 can be formed from materials such as acrylic-based materials, epoxy-based materials, phenolic-based materials, polyamide-based materials, or polyimide-based materials, but is not limited thereto. The organic layer 130 can be formed from a photosensitive organic insulating material. For example, the organic layer 130 can be formed from a photoacrylic resin.

[0092] The organic layer 130 may include two first dam portions DM1 spaced apart from each other in the second direction DR2. The first dam portions DM1 may protrude from the upper surface of the organic layer 130. The first dam portions DM1 may be integrally formed with the organic layer 130. The first dam portion DM1 may have a first width W1 and a first height H1. The first width W1 may be the width in the second direction DR2. The first height H1 may be the shortest distance from the upper end of the first dam portion DM1 to the upper surface of the organic layer 130. The first height H1 may be the height of the inner surface of the first dam portion DM1. The inner surface of the first dam portion DM1 may be the side surface facing another adjacent first dam portion DM1. The first width W1 may be the distance between the facing side surfaces of either of the two first dam portions DM1. For example, the first width W1 may be the shortest distance between the facing side surfaces of either of the two first dam portions DM1. The two first dam portions DM1 of the organic layer 130 may be disposed in the non-opening region NPA of the lower substrate 110. One first dam portion DM1 may overlap with the gate line 112. Another first dam section DM1 can overlap with the common line 113.

[0093] The second electrode 143 can be disposed on the organic layer 130 including the two first dam sections DM1. A lower alignment film (not shown) can be disposed on the second electrode 143.

[0094] The upper substrate 210 may be disposed on the organic layer 130. The first columnar spacer CS1 may be disposed on the lower surface of the upper substrate 210. An upper alignment film (not shown) covering the first columnar spacer CS1 may be disposed on the lower surface of the upper substrate 210. The liquid crystal layer may be disposed between the organic layer 130 and the upper substrate 210.

[0095] The first columnar spacer CS1 can be disposed between the two first dam sections DM1. When an external force is applied to the liquid crystal display device, the first dam section DM1 can restrict the movement of the first columnar spacer CS1, thereby preventing the first columnar spacer CS1 from intruding into the opening area PA and damaging the alignment film.

[0096] The first width W1 of the first dam section DM1 is preferably greater than the width or diameter (at the lower end) of the first columnar spacer CS1. For example... Figure 6 As shown, when a large external force is applied to the liquid crystal display device and the first columnar spacer CS1 shifts and climbs up the first dam DM1, the first columnar spacer CS1 can be stably supported by the first dam DM1.

[0097] Reference Figure 2 and Figure 5 The gate electrode 116a and the common line 113 may be disposed in the non-opening region NPA of the lower substrate 110 of the liquid crystal display device according to an exemplary embodiment of the present disclosure.

[0098] A gate insulating layer 118 may be disposed on the gate line 112 and the common line 113. The gate insulating layer 118 may also be disposed in the non-opening region NPA and the open region PA of the lower substrate 110. The gate insulating layer 118 may be formed of an inorganic insulating material. For example, the gate insulating layer 118 may be composed of a single layer or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx). For example, the gate insulating layer 118 may be formed by a single layer or multiple layers of inorganic films. For example, a single layer of inorganic film may be a silicon oxide (SiOx) film or a silicon nitride (SiNx) film, while multiple layers of inorganic films may be formed by alternately stacking one or more layers of silicon oxide (SiOx) film, one or more layers of silicon nitride (SiNx) film, and one or more layers of amorphous silicon (a-Si), but the exemplary embodiments of this disclosure are not limited thereto.

[0099] Passivation layer 120 may be disposed on gate insulating layer 118. Passivation layer 120 may be disposed in non-opening region NPA and open region PA of lower substrate 110. For example, passivation layer 120 may be composed of single or multiple layers of silicon oxide (SiOx) or silicon nitride (SiNx) as inorganic film materials, but the exemplary embodiments of this disclosure are not limited thereto. For example, passivation layer 120 may be a protective layer or an insulating layer, but the exemplary embodiments of this disclosure are not limited thereto.

[0100] A red color filter (RCF) and a blue color filter (BCF) can be disposed on the passivation layer 120. The red color filter (RCF) can be disposed in the non-aperture region NPA of the lower substrate 110. The blue color filter (BCF) can also be disposed in both the non-aperture region NPA and the aperture region PA of the lower substrate 110. The blue color filter (BCF) can be disposed on top of the red color filter (RCF) in the non-aperture region NPA of the lower substrate 110. The red color filter (RCF) and blue color filter (BCF) arranged to overlap in the non-aperture region NPA of the lower substrate 110 can serve as a black matrix to block the transmission of visible light.

[0101] The organic layer 130 can be disposed on the blue color filter BCF. For example, the organic layer 130 can be formed from materials such as acrylic-based materials, epoxy-based materials, phenolic-based materials, polyamide-based materials, or polyimide-based materials, but is not limited thereto. The organic layer 130 can be formed from a photosensitive organic insulating material. For example, the organic layer 130 can be formed from a photoacrylic resin.

[0102] The organic layer 130 may include two second dams DM2. The second dams DM2 may protrude from the upper surface of the organic layer 130. The second dams DM2 may be integrally formed with the organic layer 130. The second dams DM2 may have a second width W2 and a second height H2. The second width W2 may be the width in the second direction DR2. The second height H2 may be the shortest distance from the upper end of the second dam DM2 to the upper surface of the organic layer 130. The second height H2 may be the height of the inner surface of the second dam DM2. The inner surface of the second dam DM2 may be the side surface facing another adjacent second dam DM2. The second width W2 may be the distance between the facing side surfaces of either of the two second dams DM2. For example, the second width W2 may be the shortest distance between the facing side surfaces of either of the two second dams DM2. The two second dams DM2 of the organic layer 130 may be disposed in the non-opening region NPA of the lower substrate 110. One second dam DM2 may overlap with the gate line 112. Another second dam section DM2 can overlap with common line 113.

[0103] To prevent a decrease in the opening ratio, the second width W2 of the second dam section DM2 is preferably smaller than the first width W1 of the first dam section DM1. The gap between the second columnar spacer CS2 and the second dam section DM2 can be greater than or equal to the gap between the first columnar spacer CS1 and the first dam section DM1. Therefore, when the first columnar spacer CS1 climbs onto the first dam section DM1 by external force, a portion of the second columnar spacer CS2 can overlap with and be located on the second dam section DM2.

[0104] The second height H2 of the second dam section DM2 is preferably less than the first height H1 of the first dam section DM1. Since the second dam section DM2 is configured to correspond to the second columnar spacer CS2 with a high arrangement density, by making the second height H2 of the second dam section DM2 lower than the first height H1 of the first dam section DM1, liquid crystal diffusion defects, alignment film coating defects, and friction process defects due to the additional arrangement of the second dam section DM2 can be prevented.

[0105] The second electrode 143 can be disposed on the organic layer 130 including the two second dam sections DM2. An alignment film (not shown) can be disposed on the second electrode 143.

[0106] The upper substrate 210 can be disposed on the organic layer 130. A second columnar spacer CS2 can be disposed on the lower surface of the upper substrate 210. An alignment film (not shown) covering the second columnar spacer CS2 can be disposed on the lower surface of the upper substrate 210. The height of the second columnar spacer CS2 can be less than the height of the first columnar spacer CS1. When no external force is applied to the liquid crystal display device, the second columnar spacer CS2 can be spaced apart from the lower alignment film disposed on the lower substrate 110 by a predetermined distance. A liquid crystal layer can be disposed between the organic layer 130 and the upper substrate 210.

[0107] The second columnar spacer CS2 can be disposed between the two second dam sections DM2. When an external force is applied to the liquid crystal display device, the second dam section DM2 can prevent the second columnar spacer CS2 from intruding into the opening area PA and damaging the lower alignment film.

[0108] like Figure 6 As shown, when a large external force is applied to the liquid crystal display device and the first columnar spacer CS1 shifts and climbs up the first dam section DM1, as... Figure 7 As shown, the second columnar spacer CS2 can also be shifted by the same distance and can be positioned to be spaced apart from the second dam section DM2. For example... Figure 7 As shown, before the second columnar spacer CS2 is displaced, the gap between the second columnar spacer CS2 and the lower alignment film of the opening region PA is ΔH. After the second columnar spacer CS2 is displaced, the gap between the second columnar spacer CS2 and the lower alignment film of the opening region PA is ΔH+H1, where H1 is the first height of the first dam DM1. Since the gap ΔH between the second columnar spacer CS2 and the lower alignment film of the opening region PA further increases the first height H1 of the first dam DM1, the second columnar spacer CS2 can be prevented from damaging the lower alignment film of the opening region PA. In addition, even when the second columnar spacer CS2 is displaced by a large external force and pressed against the lower substrate 110, the second columnar spacer CS2 can be supported by the second dam DM2, thereby preventing the second columnar spacer CS2 from intruding into the opening region PA.

[0109] Figure 8 This is a diagram illustrating a method of manufacturing a display device according to an exemplary embodiment of the present disclosure.

[0110] Reference Figure 8 An organic layer 130, including a first dam DM1, can be formed by coating a photosensitive organic material covering color filters RCF, GCF, and BCF and patterning the photosensitive organic material using a halftone mask. The organic material can be thick at the position corresponding to the full-tone region FT and thin at the position corresponding to the halftone region HT.

[0111] Figure 9 This is a cross-sectional view of a display device according to an exemplary embodiment of the present disclosure. Figure 9 The exemplary implementation shown is similar to Figure 4 The difference in the exemplary embodiment shown is that it has a first dam section DM1'.

[0112] Reference Figure 9 The organic layer 130 may include two first dams DM1' spaced apart from each other in the second direction DR2. The first dams DM1' may protrude from the upper surface of the organic layer 130. The first dams DM1' may be integrally formed with the organic layer 130. The first dams DM1' may have a first width W1' in the second direction DR2 and a first height H1 in the third direction DR3. The first width W1' may be the width in the second direction DR2. The first height H1 may be the shortest distance from the upper end of the first dam DM1' to the upper surface of the organic layer 130. The first height H1 may be the height of an inner surface of the first dam DM1'. The inner surface of the first dam DM1' may be a side surface facing another adjacent first dam DM1'. The first width W1' may be the distance between the facing side surfaces of either of the two first dams DM1'. For example, the first width W1' may be the shortest distance between the facing side surfaces of either of the two first dams DM1'. The first width W1' of the first dam portion DM1' may be greater than the diameter CD1 of the lower portion of the first columnar spacer CS1. The side surfaces of the first dam portion DM1' facing the first columnar spacer CS1 may be inclined, such that the width of the first dam portion DM1' narrows as it moves away from the lower substrate 110. When the external force is removed, the inclination of the side surfaces of the first dam portion DM1' can guide the first columnar spacer CS1 back to its normal position.

[0113] Figure 10 This is a diagram illustrating a method of manufacturing a display device according to an exemplary embodiment of the present disclosure.

[0114] Reference Figure 10 An organic layer 130, including a first dam DM1', can be formed by coating a photosensitive organic material covering color filters RCF, GCF, and BCF and patterning the photosensitive organic material using a halftone mask Mask1. The organic material can be thick at locations corresponding to the full-tone region FT and thin at locations corresponding to the halftone region HT. Figure 8 In contrast, by reducing the width of the full-tone area FT and arranging slit patterns SL (full-tone) at predetermined distances on both sides of the full-tone area FT, the side surface of the first dam DM1' can be formed as inclined.

[0115] Liquid crystal display devices according to various exemplary embodiments of the present disclosure can be described as follows.

[0116] According to an exemplary embodiment of this disclosure, a liquid crystal display device is provided, comprising: a lower substrate including an open area and a non-open area, through which light is transmitted to achieve color, and a gate line and a common line extending along a first direction disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; a plurality of color filters stacked on the gate line and the common line in the non-open area of ​​the lower substrate; an organic layer disposed on the plurality of color filters in the non-open area of ​​the lower substrate, and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0117] According to some exemplary embodiments of this disclosure, the organic layer may further include two second dams that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in the second direction, wherein the second dams may be spaced apart from the first dams in the first direction, and the second columnar spacer may be located between the two second dams.

[0118] According to some exemplary embodiments of this disclosure, the gap between the second columnar spacer and the second dam section may be greater than or equal to the gap between the first columnar spacer and the first dam section.

[0119] According to some exemplary embodiments of this disclosure, the height of the second columnar spacer may be less than the height of the first columnar spacer, and the height of the second dam may be less than the height of the first dam.

[0120] According to some exemplary embodiments of this disclosure, one of the first dam sections may overlap with the selector line, and another of the first dam sections may overlap with the common line.

[0121] According to some exemplary embodiments of this disclosure, the first dam portion may have a strip shape having a first length in the first direction and a first width in the second direction, the first width of the first dam portion may be greater than the minimum diameter of the first columnar spacer, and the first length of the first dam portion may be greater than the minimum diameter of the first columnar spacer.

[0122] According to some exemplary embodiments of this disclosure, one of the second dam sections may overlap with the selector line, and another of the second dam sections may overlap with the common line.

[0123] According to some exemplary embodiments of this disclosure, the second dam may have a strip shape having a second length in the first direction and a second width in the second direction, the second width of the second dam may be less than the minimum diameter of the second columnar spacer, and the second length of the second dam may be equal to the minimum diameter of the second columnar spacer.

[0124] According to some exemplary embodiments of this disclosure, the side surface of the first dam facing the first columnar spacer may be inclined such that the width of the first dam narrows as it moves away from the lower substrate.

[0125] According to some exemplary embodiments of this disclosure, a plurality of color filters may include a red color filter and a blue color filter.

[0126] According to some exemplary embodiments of this disclosure, the red and blue color filters overlap each other in the non-opening region of the lower substrate.

[0127] According to some exemplary embodiments of the present disclosure, the liquid crystal display device further includes a first electrode and a second electrode, each of the first electrode and the second electrode having a curved structure.

[0128] According to some exemplary embodiments of this disclosure, the first electrode includes two or more first branches and a first connecting portion connecting the first branches, the first branches having a curved structure, and the second electrode includes two or more second branches and a second connecting portion connecting the second branches, the second branches having a curved structure.

[0129] According to some exemplary embodiments of this disclosure, a first branch of the first electrode and a second branch of the second electrode are alternately disposed in the opening region.

[0130] According to an exemplary embodiment of this disclosure, a liquid crystal display device is provided, comprising: a lower substrate including an open area and a non-open area, wherein light is transmitted through the open area to achieve color, and a gate line and a common line extending along a first direction are disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; an organic layer disposed in the non-open area of ​​the lower substrate on the gate line and the common line; and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0131] According to some exemplary embodiments of this disclosure, the organic layer may further include two second dams that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in the second direction, wherein the second dams may be spaced apart from the first dams in the first direction, and the second columnar spacer may be located between the two second dams.

[0132] According to some exemplary embodiments of this disclosure, the gap between the second columnar spacer and the second dam section may be greater than or equal to the gap between the first columnar spacer and the first dam section.

[0133] According to some exemplary embodiments of this disclosure, the height of the second columnar spacer may be less than the height of the first columnar spacer, and the height of the second dam may be less than the height of the first dam.

[0134] According to some exemplary embodiments of this disclosure, one of the first dam sections may overlap with the selector line, and another of the first dam sections may overlap with the common line.

[0135] According to some exemplary embodiments of this disclosure, the first dam portion may have a strip shape having a first length in the first direction and a first width in the second direction, the first width of the first dam portion may be greater than the minimum diameter of the first columnar spacer, and the first length of the first dam portion may be greater than the minimum diameter of the first columnar spacer.

[0136] According to some exemplary embodiments of this disclosure, one of the second dam sections may overlap with the selector line, and another of the second dam sections may overlap with the common line.

[0137] According to some exemplary embodiments of this disclosure, the second dam may have a strip shape having a second length in the first direction and a second width in the second direction, the second width of the second dam may be less than the minimum diameter of the second columnar spacer, and the second length of the second dam may be equal to the minimum diameter of the second columnar spacer.

[0138] According to some exemplary embodiments of this disclosure, the side surface of the first dam facing the first columnar spacer may be inclined such that the width of the first dam narrows as it moves away from the lower substrate.

[0139] According to some exemplary embodiments of the present disclosure, the liquid crystal display device further includes a first electrode and a second electrode, each of the first electrode and the second electrode having a curved structure.

[0140] According to some exemplary embodiments of this disclosure, the first electrode includes two or more first branches and a first connecting portion connecting the first branches, the first branches having a curved structure, and the second electrode includes two or more second branches and a second connecting portion connecting the second branches, the second branches having a curved structure.

[0141] According to some exemplary embodiments of this disclosure, a first branch of the first electrode and a second branch of the second electrode are alternately disposed in the opening region.

[0142] According to an exemplary embodiment of this disclosure, a liquid crystal display panel is provided, comprising: a lower substrate including an open area and a non-open area, through which light is transmitted to achieve color, and a gate line and a common line extending along a first direction disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; a plurality of color filters stacked on the gate line and the common line in the non-open area of ​​the lower substrate; an organic layer disposed on the plurality of color filters in the non-open area of ​​the lower substrate, and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0143] According to an exemplary embodiment of this disclosure, a liquid crystal display panel is provided, comprising: a lower substrate including an open area and a non-open area, wherein light is transmitted through the open area to achieve color, and a gate line and a common line extending along a first direction are disposed in the non-open area; an upper substrate disposed facing the lower substrate; a liquid crystal layer disposed between the lower substrate and the upper substrate; an organic layer disposed in the non-open area of ​​the lower substrate on the gate line and the common line; and a first columnar spacer and a second columnar spacer disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer may include two first dam portions protruding from the upper surface of the organic layer in the non-open area of ​​the lower substrate and spaced apart from each other in a second direction intersecting the first direction, and the first columnar spacer may be located between the two first dam portions.

[0144] Although exemplary embodiments of the present disclosure have been described in more detail with reference to the accompanying drawings, the present disclosure is not limited to these exemplary embodiments, and various modifications can be made without departing from the technical spirit of the present disclosure. Therefore, the exemplary embodiments disclosed herein are not intended to limit the technical spirit of the present disclosure, but rather to describe it, and the scope of the technical spirit of the present disclosure is not limited by these exemplary embodiments. Thus, it should be understood that the above exemplary embodiments are illustrative in all respects and not restrictive.

[0145] Intersection of related applications

[0146] This application claims priority and benefit to Korean Patent Application No. 10-2024-0162153, filed on November 14, 2024, the entire contents of which are hereby expressly incorporated herein for all purposes.

Claims

1. A liquid crystal display device, the liquid crystal display device comprising: A lower substrate includes an open area and a non-open area. Light is transmitted through the open area to achieve color. A gate line and a common line extending along a first direction are provided in the non-open area. An upper substrate, wherein the upper substrate is configured to face the lower substrate; A liquid crystal layer is disposed between the lower substrate and the upper substrate; Multiple color filters are stacked on the gate line and the common line in the non-opening region of the lower substrate; An organic layer is disposed on the plurality of color filters in the non-opening region of the lower substrate; as well as A first columnar spacer and a second columnar spacer are disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer includes two first dam portions that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in a second direction intersecting the first direction. The first columnar spacer is located between the two first dam sections.

2. The liquid crystal display device according to claim 1, wherein, The organic layer further includes two second dam portions that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in the second direction, and the second dam portions are spaced apart from the first dam portions in the first direction. The second columnar spacer is located between the two second dam sections.

3. The liquid crystal display device according to claim 2, wherein, The gap between the second columnar spacer and the second dam is greater than or equal to the gap between the first columnar spacer and the first dam.

4. The liquid crystal display device according to claim 2, wherein, The height of the second columnar spacer is less than the height of the first columnar spacer, and the height of the second dam is less than the height of the first dam.

5. The liquid crystal display device according to claim 1, wherein, One of the first dam sections overlaps with the selected line, and the other of the first dam sections overlaps with the common line.

6. The liquid crystal display device according to claim 1, wherein, The first dam section has a strip shape, the strip shape having a first length in the first direction and a first width in the second direction, and The first width of the first dam section is greater than the minimum diameter of the first columnar spacer, and the first length of the first dam section is greater than the minimum diameter of the first columnar spacer.

7. The liquid crystal display device according to claim 2, wherein, One of the second dam sections overlaps with the selected line, and the other of the second dam sections overlaps with the common line.

8. The liquid crystal display device according to claim 2, wherein, The second dam section has a strip shape, the strip shape having a second length in the first direction and a second width in the second direction, and The second width of the second dam is less than the minimum diameter of the second columnar spacer, and the second length of the second dam is equal to the minimum diameter of the second columnar spacer.

9. The liquid crystal display device according to claim 1, wherein, The side surface of the first dam facing the first columnar spacer is inclined, such that the width of the first dam narrows as it moves away from the lower substrate.

10. The liquid crystal display device according to claim 1, wherein, The plurality of color filters includes a red color filter and a blue color filter.

11. A liquid crystal display device, the liquid crystal display device comprising: A lower substrate includes an open area and a non-open area. Light is transmitted through the open area to achieve color. A gate line and a common line extending along a first direction are provided in the non-open area. An upper substrate, wherein the upper substrate is configured to face the lower substrate; A liquid crystal layer is disposed between the lower substrate and the upper substrate; An organic layer is disposed in the non-opening region of the lower substrate on the gate line and the common line; as well as A first columnar spacer and a second columnar spacer are disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer includes two first dam portions that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in a second direction intersecting the first direction. The first columnar spacer is located between the two first dam sections.

12. The liquid crystal display device according to claim 11, wherein, The organic layer further includes two second dam portions that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in the second direction, and the second dam portions are spaced apart from the first dam portions in the first direction. The second columnar spacer is located between the two second dam sections.

13. The liquid crystal display device according to claim 12, wherein, The gap between the second columnar spacer and the second dam is greater than or equal to the gap between the first columnar spacer and the first dam.

14. The liquid crystal display device according to claim 12, wherein, The height of the second columnar spacer is less than the height of the first columnar spacer, and the height of the second dam is less than the height of the first dam.

15. The liquid crystal display device according to claim 11, wherein, One of the first dam sections overlaps with the selected line, and the other of the first dam sections overlaps with the common line.

16. The liquid crystal display device according to claim 11, wherein, The first dam section has a strip shape, the strip shape having a first length in the first direction and a first width in the second direction, and The first width of the first dam section is greater than the minimum diameter of the first columnar spacer, and the first length of the first dam section is greater than the minimum diameter of the first columnar spacer.

17. The liquid crystal display device according to claim 12, wherein, One of the second dam sections overlaps with the selected line, and the other of the second dam sections overlaps with the common line.

18. The liquid crystal display device according to claim 12, wherein, The second dam section has a strip shape, the strip shape having a second length in the first direction and a second width in the second direction, and The second width of the second dam is less than the minimum diameter of the second columnar spacer, and the second length of the second dam is equal to the minimum diameter of the second columnar spacer.

19. The liquid crystal display device according to claim 11, wherein, The side surface of the first dam facing the first columnar spacer is inclined, such that the width of the first dam narrows as it moves away from the lower substrate.

20. A liquid crystal display panel, the liquid crystal display panel comprising: A lower substrate includes an open area and a non-open area. Light is transmitted through the open area to achieve color. A gate line and a common line extending along a first direction are provided in the non-open area. An upper substrate, wherein the upper substrate is configured to face the lower substrate; A liquid crystal layer is disposed between the lower substrate and the upper substrate; An organic layer is disposed in the non-opening region of the lower substrate on the gate line and the common line; as well as A first columnar spacer and a second columnar spacer are disposed on the lower surface of the upper substrate and spaced apart from each other in the first direction. The organic layer includes two first dam portions that protrude from the upper surface of the organic layer in the non-opening region of the lower substrate and are spaced apart from each other in a second direction intersecting the first direction. The first columnar spacer is located between the two first dam sections.

Images