CN111352271A - Display module, preparation method thereof and display device - Google Patents
Display module, preparation method thereof and display device Download PDFInfo
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- CN111352271A CN111352271A CN202010302168.3A CN202010302168A CN111352271A CN 111352271 A CN111352271 A CN 111352271A CN 202010302168 A CN202010302168 A CN 202010302168A CN 111352271 A CN111352271 A CN 111352271A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 80
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
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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
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/1343—Electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a display module, a preparation method thereof and a display device, wherein the display module comprises a first substrate, a second substrate and a liquid crystal layer arranged between the first substrate and the second substrate which are oppositely arranged, a fingerprint identification unit and a sub-pixel unit are arrayed on one side of the first substrate close to the second substrate, a fingerprint processing circuit and a light-emitting driving circuit are arranged on one side of the second substrate close to the first substrate, the fingerprint identification unit is connected with the fingerprint processing circuit, and the sub-pixel unit is connected with the light-emitting driving circuit; to improve the sensitivity of fingerprint identification.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module, a preparation method thereof and a display device.
Background
Fingerprint sensing and matching is a reliable and widely used technique. A common method of fingerprint identification involves scanning a sample fingerprint or an image thereof and storing the image and/or unique features of the fingerprint image, which can be compared with information of reference fingerprints already present in a database to determine the correct identification of the user, e.g. for authentication purposes. In particular, on-screen fingerprint recognition is now becoming increasingly popular due to its ease of operation and versatility and its suitability for compact portable electronic devices.
The technology of fingerprint identification in a Liquid Crystal Display (Liquid Crystal Display) screen is to identify and press a fingerprint on a glass cover plate covering the Display screen. However, the optical signal for identifying the fingerprint at least passes through the sub-pixel units and the liquid crystal layer, which affect the light transmission (affect the light intensity and the light angle), and the optical signal is refracted and scattered seriously in the process, even totally reflected, and affects the fingerprint identification effect.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a display module and a display device to improve the sensitivity of fingerprint identification.
In order to solve the above technical problem, an embodiment of the present invention provides a display module, which includes a first substrate, a second substrate and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the first substrate and the second substrate are disposed opposite to each other, a fingerprint identification unit and a sub-pixel unit are arranged in an array on a side of the first substrate close to the second substrate, a fingerprint processing circuit and a light-emitting driving circuit are disposed on a side of the second substrate close to the first substrate, the fingerprint identification unit is connected to the fingerprint processing circuit, and the sub-pixel unit is connected to the light-emitting driving circuit.
Optionally, the light-emitting driving circuit and the fingerprint processing circuit are arranged in the same layer.
Optionally, a black matrix is disposed around the fingerprint identification unit.
Optionally, the black matrix includes a first portion wrapping a side portion of the fingerprint identification unit and a second portion covering a side portion, close to the second substrate, of the fingerprint identification unit, a via hole communicated with the fingerprint identification unit is formed in the second portion, and the fingerprint processing circuit is connected with the fingerprint identification unit through the via hole.
Optionally, the fingerprint identification unit and the sub-pixel unit share the black matrix.
Optionally, the fingerprint identification unit is connected to the fingerprint processing circuit through a first conductive connection.
Optionally, the conductive connecting member is a conductive gold ball.
Optionally, the fingerprint identification unit includes a first electrode disposed on the first substrate, a fingerprint identification layer disposed on the first electrode, and a second electrode disposed on the fingerprint identification layer, and the second electrode is connected to the light emission driving circuit.
Optionally, the first electrode is in a grid shape of an integral structure, and the fingerprint identification unit shares the first electrode.
Optionally, the sub-pixel unit and the fingerprint identification unit share the first electrode, a second conductive connecting member is connected to the periphery of the first electrode, and the second conductive connecting member connects the first electrode with the light emission driving circuit.
Optionally, the display device further comprises a backlight module, and the backlight module is disposed on one side of the second substrate far away from the first substrate.
Optionally, the first substrate includes a pixel region and a non-display region surrounding the pixel region, the pixel region includes a sub-pixel region and a fingerprint identification region, the sub-pixel region is provided with the sub-pixel unit, and the fingerprint identification region is provided with the fingerprint identification unit.
The embodiment of the invention also provides a display device which comprises the display module.
The embodiment of the invention also provides a preparation method of the display module, which comprises the following steps:
forming fingerprint identification units and sub-pixel units which are arranged in an array manner on a first substrate;
forming a fingerprint processing circuit and a light emitting driving circuit on the second substrate through the same manufacturing process;
and the fingerprint identification unit is connected with the fingerprint processing circuit, and the sub-pixel unit is connected with the light-emitting drive circuit.
According to the display module, the preparation method of the display module and the display device, the fingerprint identification unit is arranged on the first substrate, so that the fingerprint identification unit can directly receive optical signals reflected by the ridges of the fingerprint without materials influencing light transmission, such as a liquid crystal layer, and the like, and the sensitivity of fingerprint identification is improved.
According to the display module, the sub-pixel units and the fingerprint identification unit are arranged on the same layer, so that optical signals reflected by the ridges and the valleys of the fingerprint do not need to pass through the sub-pixel units, the influence of the sub-pixel units on the optical signals is avoided, and the sensitivity of fingerprint identification is improved.
According to the embodiment of the invention, the black matrix is arranged around the fingerprint identification unit, so that the black matrix can absorb the reflected light when the backlight passes through the fingerprint identification unit, the signal saturation of the fingerprint identification unit caused by the reflected light is avoided, the fingerprint identification unit cannot receive the optical signal reflected by the fingerprint, the fingerprint identification effect is influenced, and the fingerprint identification sensitivity is improved.
According to the display module provided by the embodiment of the invention, the fingerprint identification unit and the processing circuit are respectively arranged on the first substrate and the second substrate, so that the preparation process of the display module is simplified, and the display module is beneficial to mass production.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings 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 example serve to explain the principles of the invention and not to limit the invention. The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
FIG. 1 is a schematic structural diagram of a conventional display module;
FIG. 2 is a schematic structural diagram of a display module according to an embodiment of the invention;
FIG. 3 is a first schematic structural diagram of a pixel region in a display module according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a pixel region in a display module according to an embodiment of the present invention;
fig. 5 is a third schematic structural diagram of a pixel region in a display module according to an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a conventional display module. The researchers found that: as shown in fig. 1, the conventional display module includes a first substrate 10, a second substrate 20 disposed opposite to each other, and a liquid crystal layer 30 disposed between the first substrate 10 and the second substrate 20. The first substrate 10 is a color film substrate, and the first substrate 10 is provided with a sub-pixel unit 40. The second substrate 20 is an array substrate, and the fingerprint identification unit 50 and the processing circuit are disposed on the second substrate 20 and coupled to each other. Present display module assembly presses the optical signal of fingerprint reflection on the display screen at the fingerprint identification in-process, and sub-pixel unit 40 and liquid crystal layer 30 etc. that will pass on first base plate 10 at least influence light transmission's material (influence light intensity and light angle), could be received by fingerprint identification unit 50 on the second base plate 20, and optical signal can take place more serious refraction and scattering at this in-process, and the total reflection even influences the discernment effect of fingerprint.
In order to solve the poor scheduling problem of display module fingerprint identification effect. The embodiment of the invention provides a display module, which comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are arranged oppositely, the liquid crystal layer is arranged between the first substrate and the second substrate, a fingerprint identification unit and a sub-pixel unit are arranged on one side, close to the second substrate, of the first substrate, a processing circuit is arranged on one side, close to the first substrate, of the second substrate, and the fingerprint identification unit is connected with the processing circuit through a conductive connecting piece.
The technical solution of the present invention will be described in detail by the following specific examples.
First embodiment
Fig. 2 is a schematic structural diagram of a display module according to an embodiment of the invention. As shown in fig. 2, an embodiment of the invention provides a display module, which includes a first substrate 10, a second substrate 20 and a liquid crystal layer 30 disposed between the first substrate 10 and the second substrate 20. The first substrate 10 is a color filter substrate, and the second substrate 20 is an array substrate. The first substrate 10 is arrayed with sub-pixel units 40 and a fingerprint identification unit 50 on a side adjacent to the second substrate 20. The sub-pixel unit 40 includes a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit. The sub-pixel units 40 and the fingerprint identification unit 50 are disposed on the same layer, and the fingerprint identification unit 50 is located between the adjacent sub-pixel units 40. A fingerprint processing circuit 60 and a light emitting driving circuit (not shown) are disposed on a side of the second substrate 20 adjacent to the first substrate 10, and the fingerprint processing circuit 60 is electrically connected to the fingerprint identification unit 50 for processing the optical signal received by the fingerprint identification unit 50. The light-emitting driving circuit is electrically connected to the sub-pixel unit 40, and is configured to control light emission of the sub-pixel unit 40.
According to the display module provided by the embodiment of the invention, the fingerprint identification unit 50 is arranged on the first substrate 10, so that the fingerprint identification unit 50 can directly receive optical signals reflected by the ridges of the fingerprint without materials influencing light transmission, such as the liquid crystal layer 30, and the like, and the sensitivity of fingerprint identification is improved.
According to the display module provided by the embodiment of the invention, the sub-pixel unit 40 and the fingerprint identification unit 50 are arranged on the same layer, so that optical signals reflected by the ridges and valleys of the fingerprint do not need to pass through the sub-pixel unit 40, the influence of the sub-pixel unit 40 on the optical signals is avoided, and the sensitivity of fingerprint identification is improved.
In some embodiments, the sub-pixel unit and the fingerprint identification unit may be disposed in different layers, as long as the optical signal received by the fingerprint identification unit does not need to pass through the sub-pixel unit and the liquid crystal layer, which affect the optical transmission. This embodiment is not described herein.
As shown in fig. 2, the fingerprint recognition unit 50 is connected to the fingerprint processing circuit 60 through a first conductive connection 70. The first conductive connecting member 70 is located between the fingerprint identification unit 50 and the fingerprint processing circuit 60, and electrically connects the fingerprint identification unit 50 and the fingerprint processing circuit 60. The first conductive connecting member 70 may be a conductive gold ball.
As shown in fig. 2, the fingerprint identification unit 50 includes a first electrode 501 disposed on the first substrate 10, a fingerprint identification layer 502 disposed on the first electrode 501 in an array, and a second electrode 503 disposed on the fingerprint identification layer 502. The second electrodes 503 are discontinuous electrode layers, and each second electrode 503 is disposed corresponding to the fingerprint identification layer 502 arranged in an array. The second electrode 503 is electrically connected to the fingerprint processing circuit 60 through the first conductive connecting member 70.
As shown in fig. 2, the first electrode 501 is in a grid shape with an integrated structure, and the fingerprint identification layers 502 arranged in an array in the fingerprint identification unit 50 share the first electrode 501, so that the process is simplified and the manufacturing is facilitated.
As shown in fig. 2, the sub-pixel units 40 and the fingerprint identification unit 50 share a first electrode 501, that is, the sub-pixel units 40 arranged in an array and the fingerprint identification layer 502 arranged in an array are disposed on the first electrode 501 at the same layer. The periphery of the first electrode 501 is connected to a second conductive connecting member (not shown in the figure), the second conductive connecting member electrically connects the first electrode 501 with a light-emitting driving circuit (not shown in the figure) on the second substrate 20, and the sub-pixel unit 40 is electrically connected with the light-emitting driving circuit on the second substrate 20 through the first electrode 501 and the second conductive connecting member.
As shown in fig. 2, a black matrix 80 is provided around the fingerprint recognition unit 50. The black matrix 80 wraps the fingerprint recognition unit 50. The display module of the embodiment of the invention absorbs the reflected light when the backlight passes through the fingerprint identification unit 50 through the black matrix 80, so that the signal saturation of the fingerprint identification unit 50 caused by the reflected light is avoided, the fingerprint identification unit 50 cannot receive the optical signal reflected by the fingerprint, the fingerprint identification effect is influenced, and the sensitivity of the fingerprint identification is improved.
Specifically, the black matrix 80 includes a first portion wrapping the side of the fingerprint recognition unit 50 and a second portion covering the side of the fingerprint recognition unit 50 adjacent to the second substrate 20. As shown in fig. 2, the first portion wraps the fingerprint identification layer 502 and the side portion of the second electrode 503 in the fingerprint identification unit 50, and the second portion wraps the bottom portion of the second electrode 503 in the fingerprint identification unit 50. The second portion has a via hole formed therein and communicating with the second electrode 503, and the first conductive connecting member 70 electrically connects the second electrode 503 to the fingerprint processing circuit 60 through the via hole.
As shown in fig. 2, the fingerprint identification unit 50 and the sub-pixel unit 40 share the black matrix 80, so that the process is simplified and the manufacturing is facilitated.
As shown in fig. 2, the display module according to the embodiment of the invention further includes a backlight module 90, the backlight module 90 is disposed on a side of the second substrate 20 away from the first substrate 10, and the backlight module 90 is used for providing backlight.
FIG. 3 is a first schematic structural diagram of a pixel region in a display module according to an embodiment of the present invention; FIG. 4 is a second schematic structural diagram of a pixel region in a display module according to an embodiment of the present invention; fig. 5 is a third schematic structural diagram of a pixel region in a display module according to an embodiment of the invention. The first substrate includes a pixel area 100 and a non-display area 200 surrounding the pixel area 100, the pixel area 100 includes a sub-pixel area 110 and a fingerprint identification area 120, a sub-pixel unit is disposed on the sub-pixel area 110, and the fingerprint identification area 120 is disposed thereon. The arrangement of the sub-pixel region 110 and the fingerprint identification region 120 may take various forms. For example, the sub-pixel region 110 includes a first sub-pixel region 1101, a second sub-pixel region 1102, and a third sub-pixel region 1103, the first sub-pixel region 1101 emits red light, the second sub-pixel region 1102 emits green light, and the third sub-pixel region 1103 emits blue light. The first sub-pixel area 1101 and the third sub-pixel area 1103 are both rectangular areas, and the fingerprint identification area 120 and the second sub-pixel area 1102 are arranged in a row to form a rectangular area, and are arranged in parallel with the first sub-pixel area 1101 and the third sub-pixel area 1103, as shown in fig. 3. Alternatively, the sub-pixel area 110 includes a first sub-pixel area 1101, a second sub-pixel area 1102 and a third sub-pixel area 1103, the fingerprint identification area 120 includes a first fingerprint identification area 1201, a second fingerprint identification area 1202 and a third fingerprint identification area 1203, and the first sub-pixel area 1101, the second sub-pixel area 1102 and the third sub-pixel area 1103 are respectively arranged in a column with the first fingerprint identification area 1201, the second fingerprint identification area 1202 and the third fingerprint identification area 1203, as shown in fig. 4. Alternatively, the sub-pixel region 110 includes a first sub-pixel region 1101, a second sub-pixel region 1102, and a third sub-pixel region 1103. The first sub-pixel region 1101, the second sub-pixel region 1102, the third sub-pixel region 1103 and the fingerprint identification region 120 are arranged in a row as shown in fig. 5.
Second embodiment
Based on the technical concept of the foregoing embodiment, the present invention further provides a method for manufacturing a display module, including:
forming fingerprint identification units and sub-pixel units which are arranged in an array manner on a first substrate;
forming a fingerprint processing circuit and a light emitting driving circuit on the second substrate through the same manufacturing process;
and the fingerprint identification unit is connected with the fingerprint processing circuit, and the sub-pixel unit is connected with the light-emitting drive circuit.
According to the display module provided by the embodiment of the invention, the fingerprint identification unit and the processing circuit are respectively arranged on the first substrate and the second substrate, so that the preparation process of the display module is simplified, and the display module is beneficial to mass production.
Third embodiment
Based on the technical idea of the foregoing embodiment, the invention further provides a display device including the display substrate of the foregoing embodiment. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the description of the embodiments of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (14)
1. The utility model provides a display module assembly, its characterized in that, including relative first base plate, the second base plate that sets up and set up in first base plate with liquid crystal layer between the second base plate, first base plate closes on one side array of second base plate has arranged fingerprint identification unit and subpixel unit, the second base plate closes on one side of first base plate is provided with fingerprint processing circuit and luminous drive circuit, the fingerprint identification unit with fingerprint processing circuit connects, the subpixel unit with luminous drive circuit connects.
2. The display module of claim 1, wherein the light-emitting driving circuit and the fingerprint processing circuit are disposed in the same layer.
3. The display module according to claim 1, wherein a black matrix is disposed around the fingerprint recognition unit.
4. The display module assembly according to claim 3, wherein the black matrix comprises a first portion wrapping the side of the fingerprint identification unit and a second portion covering the side of the fingerprint identification unit close to the second substrate, a via hole communicated with the fingerprint identification unit is arranged in the second portion, and the fingerprint processing circuit is connected with the fingerprint identification unit through the via hole.
5. The display module of claim 3, wherein the fingerprint identification unit and the sub-pixel unit share the black matrix.
6. The display module of claim 1, wherein the fingerprint identification unit is connected to the fingerprint processing circuit via a first conductive connection.
7. The display module of claim 6, wherein the conductive connecting member is a conductive gold ball.
8. The display module according to claim 1, wherein the fingerprint identification unit comprises a first electrode disposed on the first substrate, a fingerprint identification layer disposed on the first electrode, and a second electrode disposed on the fingerprint identification layer, and the second electrode is connected to the light emission driving circuit.
9. The display module according to claim 8, wherein the first electrode is a grid of an integrated structure, and the fingerprint recognition unit shares the first electrode.
10. The display module of claim 9, wherein the sub-pixel unit and the fingerprint identification unit share the first electrode, and a second conductive connecting member is connected to a periphery of the first electrode, and connects the first electrode to the light-emitting driving circuit.
11. The display module according to claim 1, further comprising a backlight module disposed on a side of the second substrate away from the first substrate.
12. The display module of claim 1, wherein the first substrate comprises a pixel region and a non-display region surrounding the pixel region, the pixel region comprises a sub-pixel region and a fingerprint identification region, the sub-pixel region is provided with the sub-pixel unit, and the fingerprint identification region is provided with the fingerprint identification unit.
13. A display device comprising the display module of any one of claims 1-12.
14. A preparation method of a display module is characterized by comprising the following steps:
forming fingerprint identification units and sub-pixel units which are arranged in an array manner on a first substrate;
forming a fingerprint processing circuit and a light emitting driving circuit on the second substrate through the same manufacturing process;
and the fingerprint identification unit is connected with the fingerprint processing circuit, and the sub-pixel unit is connected with the light-emitting drive circuit.
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| CN202010302168.3A CN111352271A (en) | 2020-04-16 | 2020-04-16 | Display module, preparation method thereof and display device |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955679A (en) * | 2014-05-19 | 2014-07-30 | 上海天马微电子有限公司 | Color film substrate, array substrate and display device |
| CN105702176A (en) * | 2016-04-12 | 2016-06-22 | 深圳市华星光电技术有限公司 | Display panel with fingerprint recognition function and display device |
| CN106249457A (en) * | 2016-09-26 | 2016-12-21 | 京东方科技集团股份有限公司 | A kind of control method of array base palte, display device and fingerprint recognition |
| CN107145837A (en) * | 2017-04-13 | 2017-09-08 | 上海与德科技有限公司 | Array base palte, display module and electronic equipment |
| CN206515839U (en) * | 2016-11-28 | 2017-09-22 | 南昌欧菲生物识别技术有限公司 | Organic light-emitting diode (OLED) display screen fingerprint identification device and electronic equipment |
| CN108415188A (en) * | 2018-05-02 | 2018-08-17 | 上海中航光电子有限公司 | A kind of liquid crystal display panel, display device and its unlocked by fingerprint method |
| CN110222620A (en) * | 2019-05-30 | 2019-09-10 | 武汉华星光电技术有限公司 | A kind of display panel |
| CN110850626A (en) * | 2019-11-28 | 2020-02-28 | 厦门天马微电子有限公司 | Liquid crystal display panel and display device |
| CN110850630A (en) * | 2019-11-29 | 2020-02-28 | 厦门天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN110865490A (en) * | 2019-11-29 | 2020-03-06 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN110928068A (en) * | 2019-11-28 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN110929667A (en) * | 2019-11-29 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel and display device |
-
2020
- 2020-04-16 CN CN202010302168.3A patent/CN111352271A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955679A (en) * | 2014-05-19 | 2014-07-30 | 上海天马微电子有限公司 | Color film substrate, array substrate and display device |
| CN105702176A (en) * | 2016-04-12 | 2016-06-22 | 深圳市华星光电技术有限公司 | Display panel with fingerprint recognition function and display device |
| CN106249457A (en) * | 2016-09-26 | 2016-12-21 | 京东方科技集团股份有限公司 | A kind of control method of array base palte, display device and fingerprint recognition |
| CN206515839U (en) * | 2016-11-28 | 2017-09-22 | 南昌欧菲生物识别技术有限公司 | Organic light-emitting diode (OLED) display screen fingerprint identification device and electronic equipment |
| CN107145837A (en) * | 2017-04-13 | 2017-09-08 | 上海与德科技有限公司 | Array base palte, display module and electronic equipment |
| CN108415188A (en) * | 2018-05-02 | 2018-08-17 | 上海中航光电子有限公司 | A kind of liquid crystal display panel, display device and its unlocked by fingerprint method |
| CN110222620A (en) * | 2019-05-30 | 2019-09-10 | 武汉华星光电技术有限公司 | A kind of display panel |
| CN110850626A (en) * | 2019-11-28 | 2020-02-28 | 厦门天马微电子有限公司 | Liquid crystal display panel and display device |
| CN110928068A (en) * | 2019-11-28 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN110850630A (en) * | 2019-11-29 | 2020-02-28 | 厦门天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN110865490A (en) * | 2019-11-29 | 2020-03-06 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN110929667A (en) * | 2019-11-29 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel and display device |
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Application publication date: 20200630 |