CN110989232A - Display module, electronic equipment and preparation method of display module - Google Patents
Display module, electronic equipment and preparation method of display module Download PDFInfo
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- CN110989232A CN110989232A CN201911205887.7A CN201911205887A CN110989232A CN 110989232 A CN110989232 A CN 110989232A CN 201911205887 A CN201911205887 A CN 201911205887A CN 110989232 A CN110989232 A CN 110989232A
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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
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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
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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
- G02F1/13398—Spacer materials; Spacer properties
Abstract
The invention discloses a display module, electronic equipment and a preparation method of the display module, wherein the display module is provided with a light transmission area (A), the display module comprises a first substrate (110), a second substrate (120) and a light transmission supporting part (130), the first substrate (110) and the second substrate (120) are superposed, the first substrate (110) is provided with a thin film transistor (140), the second substrate (120) is provided with a color filter film (150), the light transmission supporting part (130) is arranged between the first substrate (110) and the second substrate (120), and at least one part of the light transmission supporting part (130) is positioned in the light transmission area (A). The light-transmitting support part can prevent the parts of the first substrate and the second substrate, which are positioned in the light-transmitting area, from being deformed inwards, so that the optical performance of the light-transmitting area is improved, and the performance of the optical device is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module, electronic equipment and a preparation method of the display module.
Background
With the progress of technology and the development of electronic devices, the demand of users for full-screen electronic devices is gradually increasing, and full-screen is also gradually becoming a development trend.
The installation positions of optical devices such as a camera, a sensor, a light supplement lamp and the like are main factors for restricting the development of a comprehensive screen. In order to improve the screen occupation ratio of the electronic equipment, a light transmission area can be arranged on a display module of the electronic equipment, and optical devices such as a camera are arranged towards the light transmission area so as to realize the functions of the optical devices.
Specifically, the display module may include a first substrate and a second substrate stacked, and in order not to affect the light transmittance of the light-transmitting region, other structures may be disposed between portions of the first substrate and the second substrate located in the light-transmitting region as little as possible. Under the action of atmospheric pressure, the parts of the first substrate and the second substrate, which are positioned in the light-transmitting area, are easy to generate concave deformation, so that the optical performance of the light-transmitting area is affected, and the performance of an optical device is poor.
Disclosure of Invention
The invention discloses a display module, electronic equipment and a preparation method of the display module, and aims to solve the problem of poor performance of an optical device.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a display module assembly, display module assembly has the printing opacity region, display module assembly includes first base plate, second base plate and printing opacity supporting part, first base plate with the superpose of second base plate, first base plate is equipped with thin film transistor, the second base plate is equipped with colored filter coating, the printing opacity supporting part set up in first base plate with between the second base plate, just at least a part of printing opacity supporting part is located in the printing opacity region.
An electronic device comprises the display module and an optical device, wherein the optical device and the second substrate are respectively located on two sides of the first substrate, and the light-transmitting area and the optical device are oppositely arranged.
A preparation method of a display module is applied to the display module, and comprises the following steps:
forming a thin film transistor on the first substrate;
forming a color filter film on the second substrate;
and forming a light-transmitting support part between the first substrate and the second substrate, wherein at least one part of the light-transmitting support part is positioned in a light-transmitting area of the display module.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the display module is provided with the light-transmitting supporting part, and the light-transmitting supporting part is arranged between the first substrate and the second substrate and is positioned in the light-transmitting area, so that the light-transmitting supporting part can apply supporting force to the first substrate and the second substrate, and the parts of the first substrate and the second substrate, which are positioned in the light-transmitting area, are prevented from being inwards deformed, so that the optical performance of the light-transmitting area is improved, and the performance of an optical device is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a display module according to an embodiment of the disclosure;
FIG. 2 is a schematic view of a portion of the display module shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a display module according to another embodiment of the disclosure;
FIG. 4 is a schematic view of a portion of the display module shown in FIG. 3;
FIG. 5 is a schematic structural diagram of a display module according to another embodiment of the disclosure;
fig. 6 is a schematic view of a portion of the structure of the display module shown in fig. 5.
Description of reference numerals:
a-light-transmitting area, 110-first substrate, 120-second substrate, 130-light-transmitting support part, 140-thin film transistor, 141-source/drain electrode, 142-grid insulating layer, 143-grid electrode, 144-interlayer insulating layer, 145-source/drain metal electrode, 150-color filter film, 160-buffer layer, 170-first planarization layer, 180-touch wiring layer, 190-first passivation layer, 210-common electrode, 220-second passivation layer, 230-R pixel, 240-G pixel, 250-B pixel, 260-black matrix, 270-second planarization layer, 280-first support column, 290-second support column, 310-light-shielding part, 320-liquid crystal layer, 330-frame glue, 340-light-shielding layer, 350-pixel electrode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an embodiment of the invention discloses a display module, which can be applied to an electronic device having an optical device. The display module disclosed by the embodiment of the invention is provided with the light-transmitting area A, and the light-transmitting area A is arranged opposite to the optical device, so that light in an external environment can enter the optical device through the light-transmitting area A, or light emitted by the optical device can enter the external environment through the light-transmitting area A.
Specifically, the display module may include a first substrate 110, a second substrate 120, and a light-transmitting support portion 130, where the first substrate 110 and the second substrate 120 are stacked, and optionally, a glass plate having a high light transmittance may be used for both the first substrate 110 and the second substrate 120.
The first substrate 110 is provided with the thin film transistor 140, and specifically, the first substrate 110 is provided with a buffer layer 160, the buffer layer 160 may be made of silicon dioxide, and the buffer layer 160 may prevent impurities on the first substrate 110 from diffusing into the thin film transistor 140. The thin film transistor 140 may include source/drain electrodes 141, a gate insulating layer 142, a gate electrode 143, an interlayer insulating layer 144, and source/drain metal electrodes 145, wherein the source/drain electrodes 141 may be formed on the buffer layer 160 using a polysilicon material, a channel is formed between the source and drain electrodes, the gate insulating layer 142 is formed between the gate electrode 143 and the source/drain electrodes 141, the interlayer insulating layer 144 is formed on the gate insulating layer 142, the interlayer insulating layer 144 wraps the gate electrode 143, and the source/drain metal electrodes 145 are formed on the interlayer insulating layer 144. In addition, a light-shielding layer 340 may be formed on the first substrate 110, and the light-shielding layer 340 is disposed corresponding to the channel between the source and the drain to prevent the light from irradiating the channel to generate a photo-generated leakage current. A first planarization layer 170, a touch routing layer 180, a first passivation layer 190, a common electrode 210 and a second passivation layer 220 may be sequentially formed on the thin film transistor 140, and a pixel electrode 350 is formed on the second passivation layer 220, and the pixel electrode 350 is connected to the source/drain metal electrode 145. Alternatively, first planarizing layer 170 may be made of a transparent resin.
The second substrate 120 is provided with a color filter 150. Specifically, the color filter 150 may include R pixels 230, G pixels 240, and B pixels 250, the R pixels 230, G pixels 240, and B pixels 250 are arranged at intervals, a black matrix 260 may fill gaps between the R pixels 230, G pixels 240, and B pixels 250, and a second planarization layer 270 may be formed on the black matrix 260, and the second planarization layer 270 may be made of a transparent resin. In addition, a plurality of first supporting columns 280 and a plurality of second supporting columns 290 may be further formed on the second planarization layer 270, the plurality of first supporting columns 280 and the plurality of second supporting columns 290 are all disposed between the first substrate 110 and the second substrate 120, the plurality of first supporting columns 280 and the plurality of second supporting columns 290 are disposed at intervals, the height of the first supporting columns 280 is greater than that of the second supporting columns 290, and the first supporting columns 280 and the second supporting columns 290 are used in cooperation to ensure that the distance between the first substrate 110 and the second substrate 120 meets the requirement, so as to prevent the display module from deforming. Note that the height here is in a direction perpendicular to the first substrate 110.
The light-transmitting support 130 is disposed between the first substrate 110 and the second substrate 120, and at least a portion of the light-transmitting support 130 is located in the light-transmitting region a. Alternatively, the light-transmitting support 130 may have a column structure, a cone structure (as shown in fig. 3), or other structures, but may also have an irregular shape. In addition, the light-transmitting support 130 may be disposed corresponding to a part of the light-transmitting region a, and may be specifically located at a central position of the light-transmitting region.
The light-transmitting support 130 can transmit light between an external environment and an optical device, and can apply a supporting force to the first substrate 110 and the second substrate 120 to prevent the portions of the first substrate 110 and the second substrate 120 located in the light-transmitting area a from being deformed inward, so as to improve the optical performance of the light-transmitting area a, and improve the performance of the optical device.
The transparent supporting portion 130 may include two portions, one portion is located in the transparent area a, and the other portion is located outside the transparent area a, but the portion located outside the transparent area a may occupy the space of other structures of the display module, resulting in performance degradation of the display module. Therefore, in a direction perpendicular to the first substrate 110, a projected contour of the light-transmissive support 130 coincides with a projected contour of the light-transmissive region a. That is to say, only set up printing opacity supporting part 130 in printing opacity regional A for this printing opacity supporting part 130 both can prevent that printing opacity regional A department from appearing the indent deformation, also can not crowd the space that sets up that occupies other structures simultaneously, thereby guarantee display module's performance.
Since the light-transmitting support 130 can transmit light, stray light in the display module can easily enter the optical device through the light-transmitting support 130, which has an adverse effect on the performance of the optical device. In order to prevent this, the display module may further include a light shielding portion 310, the light shielding portion 310 is disposed between the first substrate 110 and the second substrate 120, the light shielding portion 310 is located outside the light transmitting region a, and a side surface of the light shielding portion 310 is attached to a side surface of the light transmitting support 130. The light shielding portion 310 herein does not affect the propagation of light between the external environment and the optical device, and simultaneously can prevent stray light from entering the light transmissive support 130, thereby further improving the performance of the optical device.
In order to improve the light shielding effect of the light shielding portion 310, the height of the light shielding portion 310 may be equal to the height of the light transmissive support 130, wherein the height is in a direction perpendicular to the first substrate 110. Further, the light shielding portion 310 may be disposed in a ring structure, so that the light shielding portion 310 may surround the light transmissive support 130, thereby preventing stray light in various directions from entering the light transmissive support 130.
As described above, a plurality of first supporting columns 280 and a plurality of second supporting columns 290 may be disposed between the first substrate 110 and the second substrate 120, and in an alternative embodiment, the first supporting columns 280, the second supporting columns 290 and the light shielding portion 310 may be formed separately, but considering that the first supporting columns 280 and the second supporting columns 290 also have a light shielding effect, at least one of the plurality of first supporting columns 280 and/or the plurality of second supporting columns 290 may be used as the light shielding portion 310 in order to simplify the manufacturing process of the display module. Further, in order to enhance the light shielding effect, at least one of the plurality of first support columns 280 may be used as the light shielding portion 310. At this time, the light shielding portion 310 is made of the same material as the first support column 280 and the second support column 290.
In another embodiment, as shown in fig. 4, when the display module further includes a first planarization layer 170 and a touch routing layer 180, the light-transmitting supporting portion 130 and the touch routing layer 180 can be disposed on the first planarization layer 170, and the light-shielding portion 310 and the touch routing layer 180 are disposed on the same layer. Specifically, the light-transmitting support portion 130 may be formed on the first planarization layer 170, and then the touch routing layer 180 is formed, since the touch routing layer 180 has a certain light shielding performance, the light shielding portion 310 is formed at the same time of forming the touch routing layer 180, that is, the light shielding portion 310 is not required to be formed separately because the manufacturing material of the light shielding portion 310 is the same as that of the touch routing layer 180, thereby further simplifying the manufacturing process of the display module. In addition, the touch routing layer 180 is made of metal, so that the shading effect is better.
Since the light-transmitting support 130 is disposed on the first planarizing layer 170, in the subsequent process, a first passivation layer 190, a common electrode 210, a second passivation layer 220, and the like are further formed on the first planarizing layer 170, and a part of the layers covers a surface of the light-transmitting support 130 away from the first planarizing layer 170, so as to reduce the light transmittance of the light-transmitting region a. In order to solve this problem, as shown in fig. 5 and 6, a portion of each layer structure covering the light-transmitting support portion 130, which corresponds to a surface of the light-transmitting support portion 130 facing away from the first planarizing layer 170, may be removed, so that the surface of the light-transmitting support portion 130 facing away from the first planarizing layer 170 is in contact with the second planarizing layer 270 on the second substrate 120, thereby improving the light transmittance of the light-transmitting region a.
Of course, in other embodiments, a surface of the light-transmitting support 130 facing away from the first substrate 110 may be in contact with the second planarization layer 270 on the second substrate 120, so as to improve the light transmittance of the light-transmitting region a.
Optionally, the display module disclosed in the embodiment of the present invention may be a liquid crystal display module, and at this time, the display module further includes a liquid crystal layer 320, the liquid crystal layer 320 is disposed between the first substrate 110 and the second substrate 120, the height of the light-transmitting support 130 is equal to the thickness of the liquid crystal layer 320, or the ratio between the height of the light-transmitting support 130 and the thickness of the liquid crystal layer 320 is 0.6-1, where the height and the thickness are both in a direction perpendicular to the first substrate 110. After adopting this kind of mode of setting, the height of printing opacity supporting part 130 is more reasonable, and its holding power to first base plate 110 and second base plate 120 application is moderate to promote the support effect, prevent better that display module assembly from appearing warping. Alternatively, the liquid crystal layer 320 may be encapsulated by the sealant 330.
In a specific embodiment, the thickness of the liquid crystal layer 320 may be greater than the height of the light-transmitting support 130, and the difference between the thickness of the liquid crystal layer 320 and the height of the light-transmitting support 130 may be less than 1 um. For example, the thickness of the liquid crystal layer 320 is 3um, the height of the light-transmitting support 130 can be selected between 2um and 3 um.
The embodiment of the invention also discloses electronic equipment which comprises the display module group in any embodiment and an optical device, wherein the optical device and the second substrate 120 are respectively positioned at two sides of the first substrate 110, and the light-transmitting area A of the display module group is opposite to the optical device. Optionally, the optical device herein may include at least one of a fingerprint module, a camera, a sensor, and a fill light.
The electronic device disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the electronic device may also be other devices, and the embodiment of the present invention is not limited thereto.
The embodiment of the invention also discloses a preparation method of the display module, and the preparation method can be applied to the display module in any embodiment. The preparation method specifically comprises the following steps:
s110, forming a thin film transistor 140 on the first substrate 110;
s120, forming a color filter 150 on the second substrate 120;
s130, a light-transmitting support 130 is formed between the first substrate 110 and the second substrate 120, and at least a portion of the light-transmitting support 130 is located in the light-transmitting region a of the display module.
Of course, according to the foregoing, structures such as the buffer layer 160, the first planarization layer 170, the touch routing layer 180, the first passivation layer 190, the common electrode 210, and the second passivation layer 220 may be formed on the first substrate 110, and structures such as the second planarization layer 270 may be formed on the second substrate 120, which is not described herein again.
In the display module prepared by the preparation method, the light-transmitting support part 130 can be used for transmitting light between an external environment and an optical device, and can be used for applying a supporting force to the first substrate 110 and the second substrate 120 to prevent the parts of the first substrate 110 and the second substrate 120, which are positioned in the light-transmitting area A, from being deformed inwards, so that the optical performance of the light-transmitting area A is improved, and the performance of the optical device is improved.
In an optional embodiment, the step S130 specifically includes:
s131, forming a second planarization layer 270 on the color filter 150;
s132, forming a light-transmitting support portion 130 on the second planarization layer 270.
Alternatively, processes such as exposure, development, and curing may be specifically used when the light-transmitting support portion 130 is formed. At this time, the material of the light-transmitting support portion 130 may be the same as the material of the first substrate 110, so that the light transmittance of the light-transmitting support portion 130 is higher, and the light-transmitting support portion 130 may allow more light to pass through, thereby improving the working performance of the optical device. In addition, the material of the light-transmitting support 130 is the same as the material of the first substrate 110, and the refractive indexes of the two are the same, so that refraction is not easy to occur on the contact surfaces of the two, thereby improving the light-transmitting effect.
In a further embodiment, after the step S130, the method further includes:
s140, forming a plurality of first supporting columns 280 and a plurality of second supporting columns 290 on the second planarization layer 270, wherein the height of the first supporting columns 280 is greater than that of the second supporting columns 290, at least one of the plurality of first supporting columns 280 is a light shielding portion 310, the light shielding portion 310 is located outside the light transmission region a, and the side surface of the light shielding portion 310 is attached to the side surface of the light transmission supporting portion 130.
After the above-mentioned preparation method is adopted, on one hand, the light shielding portion 310 can be formed, and the light shielding portion 310 can shield stray light and prevent the stray light from entering the light-transmitting support portion 130, and on the other hand, the light shielding portion 310 is formed simultaneously with the first support column 280 and the second support column 290, so that the preparation method of the display module can be simplified, and the cost of the display module can be reduced.
In another optional embodiment, the step S130 specifically includes:
s133, sequentially forming a first planarization layer 170, a touch routing layer 180, a first passivation layer 190, a common electrode 210 and a second passivation layer 220 on the thin film transistor 140;
s134, forming the pixel electrode 350 and the light-transmitting support portion 130 on the second passivation layer 220.
The material of the second passivation layer 220 may be transparent resin, and when the light-transmitting support portion 130 is formed on the second passivation layer 220, the material of the light-transmitting support portion 130 may be the same as the material of the second passivation layer 220, so that the light-transmitting support portion 130 has higher light transmittance, thereby improving the working performance of the optical device. Specifically, the preparation of the light-transmitting support portion 130 may be achieved through processes of photolithography, development, curing, and the like.
In another alternative embodiment, the step S130 specifically includes:
s135, forming a first planarization layer 170 on the thin film transistor 140;
s136, forming a transparent supporting portion 130 on the first planarizing layer 170;
s137, the touch wiring layer 180 and the light shielding portion 310 are formed on the first planarizing layer 170, the light shielding portion 310 is located outside the light transmitting region a, and a side surface of the light shielding portion 310 is attached to a side surface of the light transmitting support 130.
At this time, the manufacturing material of the light shielding portion 310 is the same as that of the touch wiring layer 180, and thus, it is not necessary to separately form the light shielding portion 310, so that the manufacturing process of the display module can be further simplified.
Further, step S137 is followed by:
s138, sequentially forming a first passivation layer 190, a common electrode 210 and a second passivation layer 220 on the touch wiring layer 180, the light-transmitting support part 130 and the light-shielding part 310;
and S139, removing the parts of the first passivation layer 190, the common electrode 210 and the second passivation layer 220 corresponding to the surface of the light-transmitting support 130 facing the second substrate 120.
Through the above steps, the portions of the first passivation layer 190, the common electrode 210 and the second passivation layer 220 that will block light entering the light-transmitting support portion 130 can be removed, so that the surface of the light-transmitting support portion 130 away from the first planarization layer 170 contacts the second planarization layer 270 on the second substrate 120, thereby improving the light transmittance of the light-transmitting region a.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (16)
1. The display module is characterized by comprising a light transmission area (A), the display module comprises a first substrate (110), a second substrate (120) and a light transmission supporting part (130), the first substrate (110) and the second substrate (120) are overlapped, the first substrate (110) is provided with a thin film transistor (140), the second substrate (120) is provided with a color filter film (150), the light transmission supporting part (130) is arranged between the first substrate (110) and the second substrate (120), and at least one part of the light transmission supporting part (130) is located in the light transmission area (A).
2. A display module according to claim 1, wherein the projected contour of the light-transmissive support (130) coincides with the projected contour of the light-transmissive region (a) in a direction perpendicular to the first substrate (110).
3. The display module according to claim 2, further comprising a light shielding portion (310), wherein the light shielding portion (310) is disposed between the first substrate (110) and the second substrate (120), the light shielding portion (310) is located outside the light transmissive region (a), and a side surface of the light shielding portion (310) is attached to a side surface of the light transmissive support (130).
4. The display module according to claim 3, wherein the height of the light shielding portion (310) is equal to the height of the light transmissive support portion (130), and wherein the height is in a direction perpendicular to the first substrate (110).
5. The display module according to claim 3, further comprising a plurality of first support columns (280) and a plurality of second support columns (290), wherein the plurality of first support columns (280) and the plurality of second support columns (290) are disposed between the first substrate (110) and the second substrate (120), and the plurality of first support columns (280) and the plurality of second support columns (290) are disposed at intervals, wherein a height of the first support column (280) is greater than a height of the second support column (290), and at least one of the plurality of first support columns (280) is the light shielding portion (310), wherein the height is in a direction perpendicular to the first substrate (110).
6. The display module according to claim 3, further comprising a first planarization layer (170) and a touch routing layer (180) disposed on the first substrate (110), wherein the light-transmissive support portion (130) and the touch routing layer (180) are disposed on the first planarization layer (170), and the light-shielding portion (310) and the touch routing layer (180) are disposed on the same layer.
7. The display module according to claim 1, wherein the second substrate (120) is provided with a second planarization layer (270), and a surface of the light transmissive support (130) facing away from the first substrate (110) is in contact with the second planarization layer (270).
8. The display module according to claim 1, further comprising a liquid crystal layer (320), wherein the liquid crystal layer (320) is disposed between the first substrate (110) and the second substrate (120), a height of the light-transmissive support (310) is equal to a thickness of the liquid crystal layer (320), or a ratio between the height of the light-transmissive support (310) and the thickness of the liquid crystal layer (320) is 0.6-1, and the height and the thickness are both perpendicular to the first substrate (110).
9. An electronic device comprising the display module according to any one of claims 1 to 8, and further comprising an optical device, wherein the optical device and the second substrate (120) are respectively located on both sides of the first substrate (110), and the light-transmitting region (a) is disposed opposite to the optical device.
10. The electronic device of claim 9, wherein the optics comprise at least one of a fingerprint module, a camera, a sensor, and a fill light.
11. A preparation method of a display module applied to the display module according to any one of claims 1 to 8, wherein the method comprises the following steps:
forming a thin film transistor (140) on the first substrate (110);
forming a color filter film (150) on the second substrate (120);
a light-transmitting support (130) is formed between the first substrate (110) and the second substrate (120), and at least a part of the light-transmitting support (130) is located in a light-transmitting area (A) of the display module.
12. The method according to claim 11, wherein the step of forming a light-transmissive support (130) between the first substrate (110) and the second substrate (120) comprises:
forming a second planarization layer (270) on the color filter film (150);
forming the light-transmitting support portion (130) on the second planarization layer (270).
13. The method of manufacturing according to claim 12, further comprising, after the step of forming a light-transmissive support (130) between the first substrate (110) and the second substrate (120):
forming a plurality of first supporting columns (280) and a plurality of second supporting columns (290) on the second planarization layer (270), wherein the height of the first supporting columns (280) is greater than that of the second supporting columns (290), at least one of the first supporting columns (280) is a light shielding part (310), the light shielding part (310) is located outside the light transmission region (A), and the side surface of the light shielding part (310) is attached to the side surface of the light transmission support part (130).
14. The method according to claim 11, wherein the step of forming a light-transmissive support (130) between the first substrate (110) and the second substrate (120) comprises:
sequentially forming a first planarization layer (170), a touch routing layer (180), a first passivation layer (190), a common electrode (210) and a second passivation layer (220) on the thin film transistor (140);
and forming a pixel electrode (350) and a light-transmitting support portion (130) on the second passivation layer (220).
15. The method according to claim 11, wherein the step of forming a light-transmissive support (130) between the first substrate (110) and the second substrate (120) comprises:
forming a first planarization layer (170) on the thin film transistor (140);
forming a light-transmitting support portion (130) on the first planarization layer (170);
and forming a touch wiring layer (180) and a light shielding part (310) on the first planarization layer (170), wherein the light shielding part (310) is positioned outside the light transmission area (A), and the side surface of the light shielding part (310) is attached to the side surface of the light transmission supporting part (130).
16. The method of manufacturing according to claim 15, further comprising, after the step of forming a touch routing layer (180) and a light blocking portion (310) on the first planarizing layer (170):
sequentially forming a first passivation layer (190), a common electrode (210) and a second passivation layer (220) on the touch wiring layer (180), the light-transmitting support portion (130) and the light-shielding portion (310);
and removing the parts of the first passivation layer (190), the common electrode (210) and the second passivation layer (220) corresponding to one surface of the light-transmitting support part (130) facing the second substrate (120).
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