CN111458939A - Liquid crystal display panel, preparation method thereof and electronic equipment - Google Patents
Liquid crystal display panel, preparation method thereof and electronic equipment Download PDFInfo
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- CN111458939A CN111458939A CN202010504552.1A CN202010504552A CN111458939A CN 111458939 A CN111458939 A CN 111458939A CN 202010504552 A CN202010504552 A CN 202010504552A CN 111458939 A CN111458939 A CN 111458939A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
Abstract
The invention relates to a liquid crystal display panel, a preparation method thereof and electronic equipment, wherein the liquid crystal display panel comprises a first substrate and a second substrate which are opposite; the photoelectric spacer comprises a first subunit and a second subunit which are arranged at intervals along a first direction; the first sub-unit and the second sub-unit comprise a first spacer and a second spacer which are opposite, the first spacer comprises a first body and a first protrusion, one side of the first body, which is back to the first substrate, is a first surface, and the first protrusion is convexly arranged on the first surface; the second spacer comprises a second body and a second protrusion, one side of the second body, which is back to the second substrate, is a second surface, and the second protrusion is convexly arranged on the second surface; the first bulges and the second bulges are arranged in the first direction, and the arrangement direction of the first bulges and the second bulges in the first subunit is opposite to the arrangement direction of the first bulges and the second bulges in the second subunit. The invention can prevent the first substrate from being scratched by the photoelectric spacer under the action of the shearing force of the liquid crystal display panel.
Description
Technical Field
The invention relates to the field of display, in particular to a liquid crystal display panel, a preparation method thereof and electronic equipment.
Background
The liquid crystal display panel comprises an array substrate (Thin Film Transistor, TFT substrate for short) and a Color Film substrate (Color Film Base, CF substrate for short) which are oppositely arranged, and a display region between the array substrate and the Color Film substrate is separated by a Photo Spacer (Photo Spacer) to form a filling space (Cell Gap) for filling liquid crystal between the array substrate and the Color Film substrate. In the related art, the optoelectronic spacer includes a plurality of first spacers disposed on the array substrate and a plurality of second spacers disposed on the color filter substrate, and the first spacers and the second spacers are equal in number and disposed opposite to each other. When the color film substrate is acted by a vertical external force towards the array substrate, the first spacer and the second spacer can maintain the stability of the filling space, and the array substrate is prevented from being scratched by the second spacer under the action of the vertical external force. However, when the color filter substrate is subjected to a vertical force and a lateral force (i.e., a shear force) perpendicular to the vertical force, the first spacer and the second spacer are easily misaligned, so that the array substrate is scratched by the first spacer.
Disclosure of Invention
Therefore, it is necessary to provide a liquid crystal display panel, a method for manufacturing the same, and an electronic device, which are directed to the problem that when a color film substrate is subjected to a vertical force and a lateral force (i.e., a shear force) perpendicular to the vertical force, the first spacer and the second spacer are easily misaligned, so that the first spacer scratches the array substrate.
A liquid crystal display panel comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
the photoelectric spacer is arranged between the first substrate and the second substrate and comprises a first unit strip, and the first unit strip comprises a first subunit and a second subunit which are arranged at intervals along a first direction; the first subunit and the second subunit both comprise a first spacer and a second spacer, the first spacer comprises a first body and a first protrusion, the first body is connected with the first substrate, one side of the first body, which faces away from the first substrate, is a first surface, and the first protrusion is convexly arranged on the first surface; the second spacer comprises a second body and a second protrusion, the second body is connected with the second substrate, one side of the second body, which is opposite to the second substrate, is a second surface, the second surface is opposite to the first surface, and the second protrusion is convexly arranged on the second surface;
in the first subunit and the second subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the first direction; and the arrangement direction of the first bulges and the second bulges in the first subunit is opposite to the arrangement direction of the first bulges and the second bulges in the second subunit.
In one embodiment, the optoelectronic spacer includes a second unit strip, the second unit strip includes a third subunit and a fourth subunit arranged at intervals along a second direction, the first direction is perpendicular to the second direction, and the third subunit and the fourth subunit both include the first spacer and the second spacer; wherein, in the third subunit and the fourth subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the second direction; and the arrangement direction of the first bulges and the second bulges in the third subunit is opposite to the arrangement direction of the first bulges and the second bulges in the fourth subunit.
In one embodiment, the first protrusion is located at an edge of the first body, and the second protrusion is located at an edge of the second body.
In one embodiment, the first direction and the second direction are parallel to a length direction and a width direction of the liquid crystal display panel, respectively.
In one embodiment, the liquid crystal display panel includes a sealant, a polarizing film and a liquid crystal layer, the sealant is disposed between the first substrate and the second substrate, the sealant bonds the first substrate and the second substrate and encloses the first substrate and the second substrate to form an accommodating cavity for accommodating the photoelectric spacer and the polarizing film, the polarizing film is disposed on the first substrate and connected to the periphery of the first body, and the liquid crystal layer fills a gap in the accommodating cavity.
A preparation method of a liquid crystal display panel comprises the following steps:
providing a first substrate, forming a plurality of first spacers on the first substrate, wherein the first spacers comprise a first body and a first protrusion, the first body is connected with the first substrate, one side of the first body, which faces away from the first substrate, is a first surface, and the first protrusion is convexly arranged on the first surface;
providing a second substrate, and forming a plurality of second spacers on the second substrate, wherein the second spacers comprise a second body and a second protrusion, the second body is connected with the second substrate, one side of the second body, which faces away from the second substrate, is a second surface, and the second protrusion is convexly arranged on the second surface; and
disposing the first substrate opposite to the second substrate such that the plurality of first spacers and the plurality of second spacers form an optoelectronic spacer between the first substrate and the second substrate, the optoelectronic spacer including a first unit stripe, the first unit stripe including first and second sub-units spaced apart along a first direction, the first and second sub-units each including the first and second spacers disposed opposite to each other; in the first subunit and the second subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the first direction; and the arrangement direction of the first bulges and the second bulges in the first subunit is opposite to the arrangement direction of the first bulges and the second bulges in the second subunit.
In one embodiment, the optoelectronic spacer includes a second unit strip, the second unit strip includes a third subunit and a fourth subunit arranged at intervals along a second direction, the first direction is perpendicular to the second direction, and the third subunit and the fourth subunit both include the first spacer and the second spacer arranged oppositely; wherein, in the third subunit and the fourth subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the second direction; and the arrangement direction of the first bulges and the second bulges in the third subunit is opposite to the arrangement direction of the first bulges and the second bulges in the fourth subunit.
In one embodiment, forming a plurality of first spacers on the first substrate includes: applying a photosensitive solution to the first substrate to form a first photosensitive layer connected to the first substrate; exposing the first photosensitive layer by using a mask plate, and developing the exposed first photosensitive layer to form a plurality of first bodies which are arranged at intervals on the developed first photosensitive layer; applying a photosensitive solution to the first surface to form a second photosensitive layer; exposing the second photosensitive layer by using a mask plate, and developing the exposed second photosensitive layer to form a first bulge protruding from the first surface of the second photosensitive layer; and/or the presence of a catalyst in the reaction mixture,
forming a plurality of second spacers on the second substrate, including: applying a photosensitive solution to the second substrate to form a third photosensitive layer connected to the second substrate; exposing the third photosensitive layer by using a mask plate, and developing the exposed third photosensitive layer to form a plurality of second bodies which are arranged at intervals on the developed third photosensitive layer; applying a photosensitive solution to the second surface to form a fourth photosensitive layer; and exposing the fourth photosensitive layer by using a mask plate, and developing the exposed fourth photosensitive layer to form a second bulge protruding on the fourth surface.
In one embodiment, forming a plurality of first spacers on the first substrate includes: applying a photosensitive solution to the first substrate to form a first photosensitive layer connected to the first substrate; providing a first mask plate, wherein the first mask plate comprises a complete developing area and a plurality of developing reserved areas, two adjacent developing reserved areas are spaced through the complete developing area, each developing reserved area comprises a first area and a second area which are connected, the light transmittance of the first area is different from that of the second area, and the first mask plate is arranged to be opposite to the first photosensitive layer so as to expose the first photosensitive layer; developing the exposed first photosensitive layer to completely develop the area of the first photosensitive layer opposite to the completely developed area, forming a first pattern on the area of the first photosensitive layer opposite to the first area, forming a second pattern connected with the first pattern on the area of the first photosensitive layer opposite to the second area, wherein the thickness of the second pattern is greater than that of the first pattern, the first body is formed by the flush part of the second pattern and the first pattern, and the first protrusion is formed by the part of the second pattern protruding from the first pattern; and/or the presence of a catalyst in the reaction mixture,
forming a plurality of second spacers on the second substrate, including: applying a photosensitive solution to the second substrate to form a third photosensitive layer connected to the second substrate; providing a second mask plate, wherein the second mask plate comprises a complete developing area and a plurality of developing reserved areas, two adjacent developing reserved areas are spaced through the complete developing area, each developing reserved area comprises a first area and a second area which are connected, the light transmittance of the first area is different from that of the second area, and the second mask plate is arranged to be opposite to the third photosensitive layer so as to expose the third photosensitive layer; developing the exposed third photosensitive layer to completely develop the area of the third photosensitive layer opposite to the complete development area, forming a third pattern on the area of the third photosensitive layer opposite to the first area, forming a fourth pattern connected with the third pattern on the area of the third photosensitive layer opposite to the second area, wherein the thickness of the fourth pattern is greater than that of the third pattern, the part of the fourth pattern flush with the third pattern forms the second body, and the part of the fourth pattern protruding from the third pattern forms the second protrusion.
In one embodiment, the preparation method further comprises the following steps:
a polarizing film sheet attached to an outer periphery of the first body is provided on the first substrate;
coating frame glue on the first substrate, so that the frame glue surrounds the periphery of the polarizing film;
filling liquid crystal in the region surrounded by the frame glue; and
and pressing the first substrate and the second substrate so as to enable the first substrate and the second substrate to be bonded through the frame glue and enable the first spacer and the second spacer to be opposite.
An electronic device, comprising:
a terminal body; and
the liquid crystal display panel is connected with the terminal body.
The liquid crystal display panel, the preparation method thereof and the electronic equipment provided by the invention have the following beneficial effects:
the first substrate may be an array substrate, for example, and the second substrate may be a color filter substrate, for example. When the liquid crystal display panel is subjected to a vertical force parallel to the thickness direction of the liquid crystal display panel, the first spacer and the second spacer can be in contact with each other and compressed based on the alignment arrangement of the first spacer and the second spacer, so that the deformation of the liquid crystal display panel after being compressed is reduced, and the stability of the liquid crystal display panel is maintained. Based on the first protrusions and the second protrusions arranged in the first direction, and the side of the first protrusions facing away from the first surface is located between the side of the second protrusions facing away from the second surface and the second surface, when the liquid crystal display panel is subjected to a vertical force and a transverse force (i.e. a shearing force) perpendicular to the thickness direction of the liquid crystal display panel and parallel to the first direction, the first protrusions and the second protrusions can be in contact with each other, so that the offset distance of the first substrate relative to the second substrate in the transverse direction can be reduced, the first spacers and the second spacers are prevented from being dislocated due to the overlarge offset distance, when the first spacers and the second spacers are dislocated, the first spacers easily scratch the second substrate, and the second spacers easily scratch the first substrate. In addition, the arrangement direction of the first protrusions and the second protrusions in the first subunit is opposite to the arrangement direction of the first protrusions and the second protrusions in the second subunit, so that the dislocation scratch can be avoided no matter the shearing force is applied in the forward direction or the reverse direction of the first direction.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the display panel of FIG. 1;
FIG. 3 is a schematic view of the LCD panel shown in FIG. 2;
FIG. 4 is a schematic structural diagram of the first substrate facing the second substrate with the first spacers shown in FIG. 3;
FIG. 5 is a perspective view of the second substrate of FIG. 3 showing second spacers facing away from the first substrate;
FIG. 6 is a schematic structural view of the first spacer or the second spacer in FIG. 3;
fig. 7 is a schematic flow chart illustrating a method for manufacturing a liquid crystal display panel according to an embodiment of the invention;
FIG. 8 is a schematic view illustrating a process for preparing a first spacer according to an embodiment;
FIG. 9 is a schematic view of a process for preparing a first spacer according to another embodiment;
FIG. 10 is a schematic view of a first substrate or a second substrate being exposed and developed;
FIG. 11 is a schematic view of a process for forming a second spacer according to one embodiment;
fig. 12 is a schematic view illustrating a process for preparing a second spacer according to another embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the electronic device 10 will be described with reference to a smart phone as an example. Those skilled in the art will readily understand that the electronic device 10 of the present application may be any device having communication and storage functions, such as a smart phone, a tablet computer, a notebook computer, a mobile phone, a video phone, a digital still camera, an electronic book reader, a Portable Multimedia Player (PMP), a mobile medical device, etc., and the representation of the electronic device 10 is not limited herein. Of course, wearable devices such as smartwatches are also applicable to the electronic device 10 according to the embodiments of the present application.
The electronic device 10 includes a terminal body 11 and a display 12 provided on the terminal body 11. In an embodiment, the terminal body 11 includes a middle frame 13 and a rear cover 14, the middle frame 13 and the rear cover 14 may be integrally formed or detachably connected, the rear cover 14 and the display 12 are respectively connected to two opposite sides of the middle frame 13 and enclose to form an accommodating space, and a main board, a memory, a power supply and other devices of the electronic device 10 are disposed in the accommodating space. The side of the display screen 12 facing away from the rear cover 14 has a displayable region 121 for image information display.
In one embodiment, referring to FIG. 2, the display panel 12 includes a liquid crystal display panel 100 and a backlight module 200, the liquid crystal display panel 100 and the backlight module 200 are stacked, the liquid crystal display panel 100 is used for displaying image information of the electronic device 10, and the backlight module 200 is used for providing backlight for the liquid crystal display panel 100. in one embodiment, the backlight module 200 includes a light guide plate 210 and a light source 220, the light guide plate 210 is disposed between the liquid crystal display panel 100 and the light source 220. the light source 220 may be a cold cathode tube, a light emitting diode (L ED) or an organic E L, the light source 220 may be disposed at a side edge or a bottom edge of the light guide plate 210. the light guide plate 210 converts light emitted from the light source 220 into a surface light source to provide a light source for the entire liquid.
In an embodiment, referring to fig. 3, the liquid crystal display panel 100 includes a first substrate 110, a second substrate 120, a liquid crystal layer 130, and sealant 140. The first substrate 110 may be a Thin Film Transistor (TFT) substrate, the second substrate 120 may be a Color Filter (CF) substrate, the first substrate 110 and the second substrate 120 are disposed opposite to each other, and the liquid crystal layer 130 is sandwiched between the first substrate 110 and the second substrate 120. The sealant 140 is disposed between the first substrate 110 and the second substrate 120, and the sealant 140 bonds the first substrate 110 and the second substrate 120 and encloses to form an accommodating cavity 101, where the accommodating cavity 101 is used for accommodating and filling the liquid crystal layer 130. It is understood that in other embodiments, the sealant 140 can be omitted.
It should be noted that the second substrate 120 serving as a color filter substrate may include a glass substrate, a color filter layer formed on the glass substrate, and a first electrode layer, where the first electrode layer covers the color filter layer. The color filter layer may include, for example, a black matrix and a plurality of color filter patterns. The first electrode layer may be a common electrode, and the first electrode layer may be made of a transparent conductive material, such as Indium Tin Oxide (ITO) or Indium Zinc Oxide (IZO). The first substrate 110 as an array substrate has a second electrode layer disposed toward a side of the second substrate 120, and the second electrode layer may include scan lines and data lines disposed in an interlaced manner, and a thin film transistor array. Each thin film transistor is arranged at the intersection of one scanning line and one data line, the minimum area defined by two adjacent scanning lines and two adjacent data lines is defined as a pixel area, and a pixel electrode can be arranged in each pixel area. The second electrode layer forms a driving electric field with the first electrode layer through the pixel electrode, so that the liquid crystal molecules in the liquid crystal layer 130 can be driven to rotate, and the liquid crystal display panel 100 can display normally.
In an embodiment, referring to fig. 3, the liquid crystal display panel 100 further includes a photo spacer 300, and the photo spacer 300 is disposed between the first substrate 110 and the second substrate 120 and located in the accommodating cavity 101. The photo spacer 300 is used to reduce the deformation of the liquid crystal display panel 100 after being compressed, so as to ensure the stability and thickness uniformity of the liquid crystal display panel 100 during being compressed, thereby ensuring the liquid crystal display effect. As shown in conjunction with fig. 4 and 5, the photo spacer 300 includes a first unit bar 310 and a second unit bar 320. The first unit bars 310 extend in a first direction X, and the second unit bars 320 extend in a second direction Y, the first direction being perpendicular to the second direction. In one embodiment, the first direction may be understood as a length extending direction of the liquid crystal display panel 100, and the second direction may be understood as a width extending direction of the liquid crystal display panel 100.
The first unit bar 310 includes a first subunit 311 and a second subunit 312 arranged at intervals along the first direction, and the number of the first unit bar 310 may be one or two or more (three is illustrated in the figure). In the same first cell stripe 310, the number of the first sub-cell 311 and the second sub-cell 312 may be one or more, and is not limited herein. The first sub-unit 311 and the second sub-unit 312 each include a first spacer 330 and a second spacer 340. Referring to fig. 3 and 4, the first spacer 330 includes a first body 331 and a first protrusion 332, the first body 331 is connected to the first substrate 110, a first surface 3311 is disposed on a side of the first body 331 opposite to the first substrate 110, and the first protrusion 332 is protruded from the first surface 3311. Referring to fig. 3 and 5, the second spacer 340 includes a second body 341 and a second protrusion 342, the second body 341 is connected to the second substrate 120, a side of the second body 341 facing away from the second substrate 120 is a second surface 3411, the second surface 3411 is opposite to the first surface 3311, and the second protrusion 342 is protruded from the second surface 3411.
In the first subunit 311 and the second subunit 312, referring to fig. 3, a side of the first protrusion 332 facing away from the first surface 3311 is located between a side of the second protrusion 342 facing away from the second surface 3411 and the second surface 3411, and the first protrusion 332 and the second protrusion 342 are arranged in the first direction. And the arrangement direction of the first protrusion 332 and the second protrusion 342 in the first sub-unit 311 is opposite to the arrangement direction of the first protrusion 332 and the second protrusion 342 in the second sub-unit 312. In one embodiment, taking fig. 3 as an example, the first protrusion 332 may be located at an edge of the first body 331, and the second protrusion 342 may be located at an edge of the second body 341. Of course, the present application is not limited thereto as long as it is ensured that the first and second protrusions 332 and 342 are arranged in the first direction in the first sub-unit 311 and in the second sub-unit 312.
The second unit bar 320 includes third and fourth sub-units 321 and 322 arranged at intervals in a second direction, which is a direction perpendicular to the paper surface of fig. 3, as shown in fig. 3. It should be understood that although one third subunit 321 and two fourth subunits 322 are illustrated in fig. 3 as being arranged in the first direction, the third subunit 321 and the fourth subunits 322 in fig. 3 belong to three different second unit bars 320, respectively. The third subunit 321 and the fourth subunit 322 both include the first spacer 330 and the second spacer 340, and the specific structures of the first spacer 330 and the second spacer 340 in the third subunit 321 and the fourth subunit 322 are the same as those in the first unit bar 310, so the detailed description thereof is omitted here.
In the third subunit 321 and the fourth subunit 322, referring to fig. 3, a side of the first protrusion 332 facing away from the first surface 3311 is located between a side of the second protrusion 342 facing away from the second surface 3411 and the second surface 3411, and the first protrusion 332 and the second protrusion 342 are arranged in the second direction. And the arrangement direction of the first protrusions 332 and the second protrusions 342 in the third subunit 321 is opposite to the arrangement direction of the first protrusions 332 and the second protrusions 342 in the fourth subunit 322, i.e. a positive direction and a negative direction.
In the shipping process of the liquid crystal display panel 100, when the liquid crystal display panel 100 is subjected to a vertical force parallel to the thickness direction Z of the liquid crystal display panel 100, the first spacer 330 and the second spacer 340 can contact and be compressed based on the alignment arrangement of the first spacer 330 and the second spacer 340, so as to reduce the deformation of the liquid crystal display panel 100 after being compressed and maintain the stability of the liquid crystal display panel 100.
Based on the first protrusions 332 and the second protrusions 342 being arranged in the first direction, and the side of the first protrusions 332 facing away from the first surface 3311 being located between the side of the second protrusions 342 facing away from the second surface 3411 and the second surface 3411, when the lcd panel 100 is simultaneously subjected to a vertical force and a lateral force (i.e., a shearing force) perpendicular to the thickness direction of the lcd panel 100 and parallel to the first direction, the first protrusions 332 and the second protrusions 342 can contact each other, so that the offset distance of the first substrate 110 relative to the second substrate 120 in the lateral direction can be reduced, and the first spacers 330 and the second spacers 340 are prevented from being misaligned due to an excessively large offset distance. If the first spacers 330 and the second spacers 340 are actually misaligned, the first spacers 330 are likely to scratch the second substrate 120, and the second spacers 340 are likely to scratch the first substrate 110. In addition, since the arrangement direction of the first protrusions 332 and the second protrusions 342 in the first sub-unit 311 is opposite to the arrangement direction of the first protrusions 332 and the second protrusions 342 in the second sub-unit 312, the risk of the above-mentioned misalignment scratch can be avoided regardless of whether the shearing force is applied in the forward direction or the reverse direction of the first direction.
Based on the first protrusions 332 and the second protrusions 342 arranged in the first direction, and the side of the first protrusions 332 facing away from the first surface 3311 is located between the side of the second protrusions 342 facing away from the second surface 3411 and the second surface 3411, when the lcd panel 100 is simultaneously subjected to a vertical force and a lateral force (i.e., a shearing force) perpendicular to the thickness direction of the lcd panel 100 and parallel to the second direction, the first protrusions 332 and the second protrusions 342 can contact each other, so that the offset distance of the first substrate 110 relative to the second substrate 120 in the lateral direction can be reduced, and the first spacers 330 and the second spacers 340 are prevented from being misaligned due to an excessively large offset distance. If the first spacers 330 and the second spacers 340 are actually misaligned, the first spacers 330 are likely to scratch the second substrate 120, and the second spacers 340 are likely to scratch the first substrate 110. In addition, since the arrangement direction of the first protrusions 332 and the second protrusions 342 in the third sub-unit 321 is opposite to the arrangement direction of the first protrusions 332 and the second protrusions 342 in the fourth sub-unit 322, the risk of the above-mentioned misalignment scratch can be avoided regardless of whether the shear force is applied in the forward direction or the reverse direction in the second direction.
It should be noted that one of the first unit bar 310 and the second unit bar 320 may be omitted, that is, the photo spacer 300 may include only one of the first unit bar 310 and the second unit bar 320, and still reduce the risk of scratching the substrate. For example, when the first unit bar 310 is omitted, the liquid crystal display panel 100 may maintain stability when being subjected to a shear force in the second direction at this time. When the second unit bar 320 is omitted, the liquid crystal display panel 100 may maintain stability when being subjected to a shear force in the first direction.
In an embodiment, referring to fig. 3, the liquid crystal display panel 100 further includes a polarizing film 150, the polarizing film 150 is located in the accommodating cavity 101, and the polarizing film 150 is disposed on the first substrate 110 and connected to the outer periphery of the first body 331 of the first spacer 330. The polarizing film sheet 150 is an organic film, such as a polyimide film (polyimide film), attached to the first substrate 110. The polarizer 150 can align the liquid crystal molecules in the liquid crystal layer 130 at the same angle direction without the influence of an external electric field after being optically processed, thereby ensuring normal display. Based on the present application, on the premise that the liquid crystal display panel 100 is provided with the polarizing film 150, the present application can also prevent the second spacer 340 from deviating and dislocating with the first spacer 330 under the action of the transverse shearing force, and further prevent the second spacer 140 from scratching the polarizing film 150 under the action of the vertical force, so that the screen has broken bright spots (i.e., Tiny dots) in the macroscopic view.
It should be explained that the broken bright spots are a kind of picture defects occurring when the display is in operation, and it can be understood that when the polarizing film sheet 150 is scratched, the liquid crystal molecules of the scratched area are caused to be aligned at an angle different from that of the normal area in the initial state. The angle of the electric signal influencing the rotation of the liquid crystal molecules is always the same, which can cause the angle of the liquid crystal molecules in the area to be always abnormal, namely, the liquid crystal molecules are macroscopically represented as broken bright spots. Because the polarizer 150 has a certain recovery capability, if the polarizer 150 is scratched less severely, the broken bright spots can disappear automatically after standing, but the scratch exceeds a certain limit, and permanent defects will be caused.
The photo spacer 300 of various embodiments of the present application may be, for example, a photosensitive resin having a property that it can be cured from a liquid state to a solid state after being irradiated with UV light and is stable in a solid state form, which includes but is not limited to acrylic epoxy, unsaturated polyester, polyurethane, and docetaxel photo-curing resin, and the like, in one embodiment, referring to FIG. 6, for the first and second spacers 330 and 340, the length L1 of the first and second bodies 331 and 341 is 8um to 12um, the width S1 of the first and second bodies 331 and 341 is 8um to 12um, the height (i.e., thickness) H1 of the first and second bodies 331 and 341 is 3.0um to 3.6um, the length S L of the first and second protrusions 332 and 342 is 8um to 12um, the height (i.e., thickness) of the first and second bodies 331 and 341 is 10 5634 um to 3.6um, the height (i.e., thickness) of the first and second protrusions 332 and 342 is 8um to 12um, the height S2 of the first and the second protrusion (i.e., 8291 to 3 um) and the width S2 of the first and second protrusion 342 is 3.1 to 12um, such as 3.1 to 12 um.
Referring to fig. 7, an embodiment of the present application further provides a method for manufacturing a liquid crystal display panel 100, where the method for manufacturing the liquid crystal display panel 100 includes the following steps:
in step S10, the first substrate 110 is provided, and referring to fig. 4, a plurality of first spacers 330 are formed on the first substrate 110. The first spacer 330 includes a first body 331 and a first protrusion 332, the first body 331 is connected to the first substrate 110, a first surface 3311 is a side of the first body 331 opposite to the first substrate 110, and the first protrusion 332 is convexly disposed on the first surface 3311. The first substrate 110 may be a Thin Film Transistor (TFT) substrate, and the structure thereof is described above, and therefore, the description thereof is omitted.
In step S20, a second substrate 120 is provided, and referring to fig. 5, a plurality of second spacers 340 are formed on the second substrate 120. The second spacer 340 includes a second body 341 and a second protrusion 342, the second body 341 is connected to the second substrate 120, a side of the second body 341 facing away from the second substrate 120 is a second surface 3411, the second surface 3411 is opposite to the first surface 3311, and the second protrusion 342 is protruded on the second surface 3411. The second substrate 120 may be a Color Filter (CF) substrate, which is a Color Filter substrate, and the specific structure of the Color Filter substrate is described above, and therefore is not described herein again.
Step S30, referring to fig. 3, the first substrate 110 is disposed opposite to the second substrate 120, such that the plurality of first spacers 330 and the plurality of second spacers 340 form the optoelectronic spacer 300 located between the first substrate 110 and the second substrate 120, the optoelectronic spacer 300 includes a first cell stripe 310, the first cell stripe 310 includes first sub-cells 311 and second sub-cells 312 arranged at intervals along a first direction, and each of the first sub-cells 311 and the second sub-cells 312 includes the first spacers 330 and the second spacers 340 disposed opposite to each other. In the first subunit 311 and the second subunit 312, the side of the first protrusion 332 facing away from the first surface 3311 is located between the side of the second protrusion 342 facing away from the second surface 3411 and the second surface 3411, and the first protrusion 332 and the second protrusion 342 are arranged in the first direction. And the arrangement direction of the first protrusion 332 and the second protrusion 342 in the first sub-unit 311 is opposite to the arrangement direction of the first protrusion 332 and the second protrusion 342 in the second sub-unit 312.
In one embodiment, the photo spacer 300 further includes a second unit bar 320, and the second unit bar 320 includes a third subunit 321 and a fourth subunit 322 spaced along a second direction, and the first direction is perpendicular to the second direction. The third subunit 321 and the fourth subunit 332 each include the first spacer 330 and the second spacer 340 disposed opposite to each other. In the third subunit 321 and the fourth subunit 322, the side of the first protrusion 332 facing away from the first surface 3311 is located between the side of the second protrusion 342 facing away from the second surface 3411 and the second surface 3411, and the first protrusion 332 and the second protrusion 342 are arranged in the second direction. The arrangement direction of the first and second protrusions 332 and 342 in the third sub-unit 321 is opposite to the arrangement direction of the first and second protrusions 332 and 342 in the fourth sub-unit 322. The second unit bar 320 may also be omitted.
In an embodiment, referring to fig. 8, the forming of the plurality of first spacers 330 on the first substrate 110, namely step S10, may specifically include the following steps:
step S11, a photosensitive solution is applied to the first substrate 110 to form a first photosensitive layer connected to the first substrate 110, the photosensitive solution may be a photosensitive resin, and the photosensitive resin has a property that it can be cured from a liquid state to a solid state and can be stabilized in a solid state form after being irradiated with UV light. The materials mainly include but are not limited to acrylic acid-methyl epoxy resin, unsaturated polyester, polyurethane, and doxycycline light-cured resin.
Step S12, exposing the first photosensitive layer with a mask plate, and developing the exposed first photosensitive layer to form a plurality of first bodies 331 arranged at intervals on the developed first photosensitive layer. At this time, a surface of the first body 331 facing away from the first substrate 110 is the first surface 3311. It should be noted that the mask is a common mask (which includes a completely transparent region and an opaque region).
In step S13, a photosensitive solution is applied to the first surface 3311 to form a second photosensitive layer.
In step S14, the second photosensitive layer is exposed by the mask and developed to form a first protrusion 332 protruding from the first surface 3311.
In another embodiment, referring to fig. 9 and 10, the step of forming the plurality of first spacers 330 on the first substrate 110, namely step S10, may specifically include the following steps:
step S11a, a photosensitive solution is applied to the first substrate 110 to form the first photosensitive layer 20 connected to the first substrate 110, wherein the photosensitive solution can be a photosensitive resin, and the photosensitive resin has a property that the photosensitive resin can be cured from a liquid state to a solid state and can be stabilized in a solid state form after being irradiated by UV light. The materials mainly include but are not limited to acrylic acid-methyl epoxy resin, unsaturated polyester, polyurethane, and doxycycline light-cured resin.
Step S12a, providing a first mask 400, where the first mask 400 may be a half mask (half tone), the first mask 400 includes a complete development area 410 and a plurality of development reservation areas 420, two adjacent development reservation areas 420 are spaced apart from each other by the complete development area 410, each development reservation area 420 includes a first area 421 and a second area 422 that are connected to each other, and light transmittances of the first area 421 and the second area 422 are different. The first mask 400 is disposed opposite to the first photosensitive layer 20 to expose the first photosensitive layer 20.
Step S13a, developing the exposed first photosensitive layer 20, so that the area of the first photosensitive layer 20 opposite to the completely developed area 410 is completely developed, the area of the first photosensitive layer 20 opposite to the first area 421 forms a first pattern 21, the area of the first photosensitive layer 20 opposite to the second area 422 forms a second pattern 22 connected to the first pattern 21, the thickness of the second pattern 22 is greater than that of the first pattern 21, the portion of the second pattern 22 flush with the first pattern 21 forms a first body 331, and the portion of the second pattern 22 protruding from the first pattern 21 forms a first protrusion 332. Thus, the first spacer 330 is prepared.
In an embodiment, referring to fig. 11, the forming of the plurality of second spacers 340 on the second substrate 120, namely step S20, may include the following steps (same as the forming process of the first spacers 330):
step S21, a photosensitive solution is applied to the second substrate 120 to form a third photosensitive layer connected to the second substrate 120, the photosensitive solution may be a photosensitive resin, and the photosensitive resin has a property that it can be cured from a liquid state to a solid state and can be stabilized in a solid state form after being irradiated with UV light. The materials mainly include but are not limited to acrylic acid-methyl epoxy resin, unsaturated polyester, polyurethane, and doxycycline light-cured resin.
Step S22, exposing the third photosensitive layer with a mask, and developing the exposed third photosensitive layer to form a plurality of second bodies 341 arranged at intervals. At this time, a surface of the second body 341 facing away from the second substrate 120 is the second surface 3411. It should be noted that the mask is a common mask (which includes a completely transparent region and an opaque region).
In step S23, a photosensitive solution is applied to the second surface 3411 to form a fourth photosensitive layer.
In step S24, the fourth photosensitive layer is exposed by the mask plate and developed, so that the developed fourth photosensitive layer forms the second protrusion 342 protruding from the second surface 3411.
In other embodiments, referring to fig. 12 and 9, the forming of the plurality of second spacers 340 on the second substrate 120, i.e., step S20, may include the following steps (same as the forming process of the first spacers 330):
step S21a, a photosensitive solution is applied to the second substrate 110 to form a third photosensitive layer 30 connected to the second substrate 110, wherein the photosensitive solution can be a photosensitive resin, and the photosensitive resin has a property that the photosensitive resin can be cured from a liquid state to a solid state and can be stabilized in a solid state form after being irradiated by UV light. The materials mainly include but are not limited to acrylic acid-methyl epoxy resin, unsaturated polyester, polyurethane, and doxycycline light-cured resin.
Step S22a, providing a second mask 500, where the second mask 500 may be a half mask (half tone), the second mask 500 includes a complete developing area 410 and a plurality of developing reservation areas 420, two adjacent developing reservation areas 420 are spaced apart from each other by the complete developing area 410, each developing reservation area 420 includes a first area 421 and a second area 422 connected to each other, and light transmittances of the first area 421 and the second area 422 are different. The second mask 500 is disposed opposite to the third photosensitive layer 30 to expose the third photosensitive layer 30.
Step S23a, developing the exposed third photosensitive layer 30, so that the area of the third photosensitive layer 30 opposite to the completely developed area 410 is completely developed, the area of the third photosensitive layer 30 opposite to the first area 421 forms a first pattern 21, the area of the first photosensitive layer 30 opposite to the second area 422 forms a second pattern 22 connected to the first pattern 21, the thickness of the second pattern 22 is greater than that of the first pattern 21, the portion of the second pattern 22 flush with the first pattern 21 forms a second body 341, and the portion of the second pattern 22 protruding from the first pattern 21 forms a second protrusion 342. Thus, the second spacer 340 is prepared.
In an embodiment, the preparation method may further include the following steps in sequence:
a polarizing film sheet 150 connected to the outer circumference of the first body 331 is disposed on the first substrate 110; coating the frame glue 140 on the first substrate 110, so that the frame glue 140 surrounds the periphery of the polarizing film 150; filling liquid crystal in the region surrounded by the frame glue 140 to form a liquid crystal layer 130; the first substrate 110 and the second substrate 120 are bonded by the sealant 140.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A liquid crystal display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
the photoelectric spacer is arranged between the first substrate and the second substrate and comprises a first unit strip, and the first unit strip comprises a first subunit and a second subunit which are arranged at intervals along a first direction; the first subunit and the second subunit both comprise a first spacer and a second spacer, the first spacer comprises a first body and a first protrusion, the first body is connected with the first substrate, one side of the first body, which faces away from the first substrate, is a first surface, and the first protrusion is convexly arranged on the first surface; the second spacer comprises a second body and a second protrusion, the second body is connected with the second substrate, one side of the second body, which is opposite to the second substrate, is a second surface, the second surface is opposite to the first surface, and the second protrusion is convexly arranged on the second surface;
in the first subunit and the second subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the first direction; and the arrangement direction of the first bulges and the second bulges in the first subunit is opposite to the arrangement direction of the first bulges and the second bulges in the second subunit.
2. The liquid crystal display panel of claim 1, wherein the photo spacers comprise a second cell stripe comprising a third sub-cell and a fourth sub-cell spaced apart along a second direction, the first direction being perpendicular to the second direction, the third sub-cell and the fourth sub-cell each comprising the first spacer and the second spacer; wherein, in the third subunit and the fourth subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the second direction; and the arrangement direction of the first bulges and the second bulges in the third subunit is opposite to the arrangement direction of the first bulges and the second bulges in the fourth subunit.
3. The liquid crystal display panel according to claim 1 or 2, wherein the first protrusion is located at an edge of the first body, and the second protrusion is located at an edge of the second body.
4. The liquid crystal display panel according to claim 1 or 2, wherein the first direction and the second direction are parallel to a length direction and a width direction of the liquid crystal display panel, respectively.
5. The liquid crystal display panel according to claim 1 or 2, wherein the liquid crystal display panel includes a sealant, a polarizing film and a liquid crystal layer, the sealant is disposed between the first substrate and the second substrate, the sealant bonds the first substrate and the second substrate and encloses a cavity for accommodating the photo spacer and the polarizing film, the polarizing film is disposed on the first substrate and connected to an outer periphery of the first body, and the liquid crystal layer fills a gap in the cavity.
6. The preparation method of the liquid crystal display panel is characterized by comprising the following steps:
providing a first substrate, forming a plurality of first spacers on the first substrate, wherein the first spacers comprise a first body and a first protrusion, the first body is connected with the first substrate, one side of the first body, which faces away from the first substrate, is a first surface, and the first protrusion is convexly arranged on the first surface;
providing a second substrate, and forming a plurality of second spacers on the second substrate, wherein the second spacers comprise a second body and a second protrusion, the second body is connected with the second substrate, one side of the second body, which faces away from the second substrate, is a second surface, and the second protrusion is convexly arranged on the second surface; and
disposing the first substrate opposite to the second substrate such that the plurality of first spacers and the plurality of second spacers form an optoelectronic spacer between the first substrate and the second substrate, the optoelectronic spacer including a first unit stripe, the first unit stripe including first and second sub-units spaced apart along a first direction, the first and second sub-units each including the first and second spacers disposed opposite to each other; in the first subunit and the second subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the first direction; and the arrangement direction of the first bulges and the second bulges in the first subunit is opposite to the arrangement direction of the first bulges and the second bulges in the second subunit.
7. The method of claim 6, wherein the optoelectronic spacer comprises a second unit strip, the second unit strip comprises a third subunit and a fourth subunit spaced apart along a second direction, the first direction is perpendicular to the second direction, and the third subunit and the fourth subunit each comprise the first spacer and the second spacer disposed opposite to each other; wherein, in the third subunit and the fourth subunit, a side of the first protrusion facing away from the first surface is located between a side of the second protrusion facing away from the second surface and the second surface, and the first protrusion and the second protrusion are arranged in the second direction; and the arrangement direction of the first bulges and the second bulges in the third subunit is opposite to the arrangement direction of the first bulges and the second bulges in the fourth subunit.
8. The method according to claim 6 or 7, wherein forming a plurality of first spacers on the first substrate comprises: applying a photosensitive solution to the first substrate to form a first photosensitive layer connected to the first substrate; exposing the first photosensitive layer by using a mask plate, and developing the exposed first photosensitive layer to form a plurality of first bodies which are arranged at intervals on the developed first photosensitive layer; applying a photosensitive solution to the first surface to form a second photosensitive layer; exposing the second photosensitive layer by using a mask plate, and developing the exposed second photosensitive layer to form a first bulge protruding from the first surface of the second photosensitive layer; and/or the presence of a catalyst in the reaction mixture,
forming a plurality of second spacers on the second substrate, including: applying a photosensitive solution to the second substrate to form a third photosensitive layer connected to the second substrate; exposing the third photosensitive layer by using a mask plate, and developing the exposed third photosensitive layer to form a plurality of second bodies which are arranged at intervals on the developed third photosensitive layer; applying a photosensitive solution to the second surface to form a fourth photosensitive layer; and exposing the fourth photosensitive layer by using a mask plate, and developing the exposed fourth photosensitive layer to form a second bulge protruding on the fourth surface.
9. The method according to claim 6 or 7, wherein forming a plurality of first spacers on the first substrate comprises: applying a photosensitive solution to the first substrate to form a first photosensitive layer connected to the first substrate; providing a first mask plate, wherein the first mask plate comprises a complete developing area and a plurality of developing reserved areas, two adjacent developing reserved areas are spaced through the complete developing area, each developing reserved area comprises a first area and a second area which are connected, the light transmittance of the first area is different from that of the second area, and the first mask plate is arranged to be opposite to the first photosensitive layer so as to expose the first photosensitive layer; developing the exposed first photosensitive layer to completely develop the area of the first photosensitive layer opposite to the completely developed area, forming a first pattern on the area of the first photosensitive layer opposite to the first area, forming a second pattern connected with the first pattern on the area of the first photosensitive layer opposite to the second area, wherein the thickness of the second pattern is greater than that of the first pattern, the first body is formed by the flush part of the second pattern and the first pattern, and the first protrusion is formed by the part of the second pattern protruding from the first pattern; and/or the presence of a catalyst in the reaction mixture,
forming a plurality of second spacers on the second substrate, including: applying a photosensitive solution to the second substrate to form a third photosensitive layer connected to the second substrate; providing a second mask plate, wherein the second mask plate comprises a complete developing area and a plurality of developing reserved areas, two adjacent developing reserved areas are spaced through the complete developing area, each developing reserved area comprises a first area and a second area which are connected, the light transmittance of the first area is different from that of the second area, and the second mask plate is arranged to be opposite to the third photosensitive layer so as to expose the third photosensitive layer; developing the exposed third photosensitive layer to completely develop the area of the third photosensitive layer opposite to the complete development area, forming a third pattern on the area of the third photosensitive layer opposite to the first area, forming a fourth pattern connected with the third pattern on the area of the third photosensitive layer opposite to the second area, wherein the thickness of the fourth pattern is greater than that of the third pattern, the part of the fourth pattern flush with the third pattern forms the second body, and the part of the fourth pattern protruding from the third pattern forms the second protrusion.
10. The method of claim 6 or 7, further comprising the steps of:
a polarizing film sheet attached to an outer periphery of the first body is provided on the first substrate;
coating frame glue on the first substrate, so that the frame glue surrounds the periphery of the polarizing film;
filling liquid crystal in the region surrounded by the frame glue; and
and pressing the first substrate and the second substrate so as to enable the first substrate and the second substrate to be bonded through the frame glue and enable the first spacer and the second spacer to be opposite.
11. An electronic device, comprising:
a terminal body; and
the liquid crystal display panel according to any one of claims 1 to 5 or the liquid crystal display panel produced by the production method according to any one of claims 6 to 10 is connected to the terminal body.
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| CN202010504552.1A CN111458939A (en) | 2020-06-05 | 2020-06-05 | Liquid crystal display panel, preparation method thereof and electronic equipment |
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| CN202010504552.1A CN111458939A (en) | 2020-06-05 | 2020-06-05 | Liquid crystal display panel, preparation method thereof and electronic equipment |
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