CN114973984A - Display screen and splicing display device - Google Patents

Display screen and splicing display device Download PDF

Info

Publication number
CN114973984A
CN114973984A CN202210613267.2A CN202210613267A CN114973984A CN 114973984 A CN114973984 A CN 114973984A CN 202210613267 A CN202210613267 A CN 202210613267A CN 114973984 A CN114973984 A CN 114973984A
Authority
CN
China
Prior art keywords
display
led
substrate
area
display screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210613267.2A
Other languages
Chinese (zh)
Other versions
CN114973984B (en
Inventor
赵军
赵斌
肖军城
刘俊领
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
TCL China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TCL China Star Optoelectronics Technology Co Ltd filed Critical TCL China Star Optoelectronics Technology Co Ltd
Priority to CN202210613267.2A priority Critical patent/CN114973984B/en
Publication of CN114973984A publication Critical patent/CN114973984A/en
Application granted granted Critical
Publication of CN114973984B publication Critical patent/CN114973984B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13336Combining plural substrates to produce large-area displays, e.g. tiled displays
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the application discloses a display screen and a splicing display device, wherein the display screen comprises an LED substrate and a liquid crystal panel, the LED substrate comprises a substrate, a first LED device group and a second LED device group, the substrate comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is disposed on the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and used for displaying pictures; the liquid crystal panel is arranged on the LED substrate and is located in the backlight area. The splicing method and the splicing device aim at solving the problems that the splicing of the existing liquid crystal splicing screen is troublesome and the display quality of the splicing position is not good.

Description

Display screen and splicing display device
Technical Field
The application relates to the technical field of display, in particular to a display screen and a splicing display device.
Background
The liquid crystal spliced screen can be used as a display independently and can be spliced into an oversized screen for use. According to different use requirements, the changeable screen function with the size being changed into the smaller one is realized. The display effect and the watching experience are greatly reduced due to the existence of splicing seams in actual display.
In the research and practice process to prior art, the inventor of this application discovers, and the scheme of the piece of processing liquid crystal concatenation screen at present stage adopts to directly show the lamp strip with MiniLED and pastes in the piece department at the concatenation in-process usually, but this setting mode concatenation efficiency is lower, and easily because of the not good problem of display quality of lamp strip installation back protrusion and lead to appearing the concatenation department.
Disclosure of Invention
The embodiment of the application provides a display screen and a splicing display device to solve the problems that the splicing of the existing liquid crystal splicing screen is troublesome and the display quality of the splicing part is not good.
The embodiment of the application provides a display screen, includes:
the LED substrate comprises a substrate, a first LED device group and a second LED device group, wherein the substrate comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is disposed on the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and used for displaying pictures; and
the liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes a light blocking wall, and the light blocking wall is disposed on the substrate and located between the backlight area and the display area.
Optionally, in some embodiments of the present application, the display screen further includes a reflective layer, and the reflective layer is disposed on a side of the light blocking wall facing the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes an optical film layer, the optical film layer is disposed between the LED substrate and the liquid crystal panel, and the optical film layer is located on the light blocking wall, and projects from the liquid crystal panel to the LED substrate, and a projection area of the optical film layer coincides with a projection area of the backlight area.
Optionally, in some embodiments of the present application, the display screen further includes an encapsulation adhesive layer, the encapsulation adhesive layer encapsulates the second LED device group, and a surface of the liquid crystal panel away from the optical film layer is flush with a surface of the encapsulation adhesive layer away from the second LED device group.
Optionally, in some embodiments of the present application, the first LED device group includes a plurality of spaced-apart blue light emitting LED devices, and the optical film layer includes a light conversion film;
and the projection area of the plurality of blue light-emitting LED devices is positioned in the projection area of the light conversion film.
Optionally, in some embodiments of the present application, the optical film layer further includes a diffusion film and a brightness enhancement film, which are stacked.
Optionally, in some embodiments of the present application, the liquid crystal panel includes a display area and a non-display area surrounding the display area, the non-display area is provided with a black matrix, and the black matrix is disposed corresponding to the light blocking wall.
Optionally, in some embodiments of the present application, the first LED device group includes a plurality of first LED devices, the second LED device group includes a plurality of second LED devices, a distance between two adjacent first LED devices is S1, a distance between two adjacent second LED devices is S2, and S1 > S2.
Correspondingly, the embodiment of the application further provides a splicing display device, which comprises at least more than two display screens, one LED substrate of each display screen is spliced with the other LED substrate of each display screen.
The display screen provided by the embodiment of the application comprises an LED substrate and a liquid crystal panel, wherein the LED substrate comprises a substrate, a first LED device group and a second LED device group. The substrate includes a backlight region and a display region located at least one side of the backlight region. The first LED device group is disposed in a backlight area on the substrate. The second LED device group is disposed in a display area on the substrate for displaying a picture. The liquid crystal panel is arranged on the LED substrate and is located in the backlight area. Therefore, the backlight area of the substrate, the first LED device group and the liquid crystal panel form a liquid crystal backlight display area, the display area of the substrate and the second LED device group form an LED direct display area, and further the display screen can simultaneously realize LED direct display and liquid crystal display through one-step forming, so that in the subsequent splicing process, the LED direct display area can display at the splicing seam, the process that the LED direct display lamp strip is separately and additionally arranged at the splicing seam is avoided, the splicing efficiency can be effectively improved, the cost is reduced, the display problem caused by the fact that the LED direct display lamp strip is subsequently protruded can be effectively reduced, the appearance can be effectively improved, the brightness difference can be effectively improved, and the display effect is further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display screen provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an LED substrate of a display screen provided in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a display screen according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a tiled display device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display screen and a splicing display device thereof. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 1, a display screen 100 provided in the embodiment of the present application includes an LED substrate 10 and a liquid crystal panel 20, where the LED substrate 10 includes a substrate 11, a first LED device group 12, and a second LED device group 13. The substrate 11 includes a backlight area 111 and a display area 112, and the display area 112 is located at least one side of the backlight area 111. The first LED device group 12 is disposed on the backlight area 111 on the substrate 11. The second LED device group 13 is disposed on the substrate 11 in the display area 112 for displaying a picture. The liquid crystal panel 20 is disposed on the LED substrate 10 and located in the backlight area 111.
Therefore, the backlight area 111 of the substrate 11, the first LED device and the liquid crystal panel 20 form a liquid crystal backlight display area, and the display area 112 of the substrate 11 and the second LED device group 13 form an LED direct display area, so that the display screen 100 can simultaneously realize LED direct display and liquid crystal display through one-step forming.
It will be appreciated that the substrate 11 may be one of a printed circuit board, a glass LED substrate, or a polyimide substrate. When the substrate 11 is a printed circuit board, the printed circuit board is a lamp driving-in-one printed circuit board, and the structure is simpler. When the substrate 11 is a glass LED substrate, the glass substrate has high flatness, so that an active driving scheme can be implemented when the driving circuit is manufactured on the glass substrate, thereby reducing the overall size of the driving circuit and better reducing the power consumption of the driving circuit. Meanwhile, the glass substrate can enable the display screen 100 to have better water resistance and oxidation resistance, thereby being more beneficial to prolonging the service life and reliability of the display screen 100. When the base 11 adopts the polyimide substrate, because the polyimide is flexible material, can provide the bendability for the jumbo size concatenation demonstration, further promote the display effect. The area of the backlight area 111 is larger than the area of the display area 112, so as to reduce the number of direct display areas in the display screen 100, thereby effectively reducing the overall cost of the display screen 100.
In addition, the present application does not limit the type of the liquid crystal panel 20, and the liquid crystal panel may be a Vertical electric Field type liquid crystal display panel, such as a Twisted Nematic (TN) type liquid crystal display panel, a Multi-domain Vertical Alignment (MVA) type liquid crystal display panel, or a horizontal electric Field type liquid crystal display panel, such as a Fringe Field Switching (FFS) type liquid crystal display panel or an In-Plane Switching (IPS) type liquid crystal display panel. The liquid crystal panel 20 includes an array substrate and an opposite substrate disposed opposite to each other and a liquid crystal layer disposed between the array substrate and the opposite substrate. In this embodiment, the array substrate is an array substrate, and the opposite substrate is a color filter substrate. The application also does not limit the types of the array substrate and the opposite substrate. In other embodiments of the present disclosure, the array substrate and the opposite substrate may be coa (color filter on array) type array substrate and opposite substrate.
In some embodiments, referring to fig. 1 and 2, the first LED device group 12 includes a plurality of first LED devices 121, the second LED device group 13 includes a plurality of second LED devices 131, a pitch of two adjacent first LED devices 121 is S1, and a pitch of two adjacent second LED devices 131 in the second LED device group 13 is S2, S1 > S2. Wherein the first LED device group 12 functions as a backlight and the second LED device group 13 functions as a display. By means of S1 > S2, the distance between two adjacent first LED devices 121 in the first LED device group 12 can be set to be wider than S1 to reduce the number of first LED devices 121 and thus reduce the cost of the display screen 100, and the distance between two adjacent second LED devices 131 in the second LED device group 13 can be set to be narrower than S2 to improve the display clarity of the second LED device group 13. Note that the second LED device group 13 includes a red LED device, a blue LED device, and a green LED device.
Referring to fig. 3, in another embodiment, the display panel 100 further includes a light blocking wall 30, and the light blocking wall 30 is disposed on the substrate 11 and between the backlight area 111 and the display area 112. The light blocking wall 30 is arranged between the backlight area 111 and the display area 112 to block light, so that the probability of light leakage or color mixing of the light of the backlight area 111 and the light of the display area 112 can be effectively reduced, and the display effect of the backlight area 111 and the display area 112 of the display screen 100 can be further ensured. It is understood that the light blocking wall 30 is made of a non-transparent material. And two side walls of the light blocking wall 30 facing the backlight area 111 and the display area 112 are disposed in a plane, so as to effectively reduce the effect of diffuse reflection of light of the first LED device group and the second LED device group while blocking light.
Further, the display panel 100 further includes a reflective layer 40, and the reflective layer 40 is disposed on a surface of the light-blocking wall 30 facing the backlight area 111. It can be understood that the first LED device group mainly functions as a backlight source, and in order to further reduce the influence of the light of the first LED device group 12 in the backlight area 111 on the display of the display area 112, the reflecting layer 40 is disposed on the side of the light-blocking wall 30 facing the backlight area 111 for reflecting the light of the first LED device group 12, so as to not only increase the light intensity of the backlight area 111, but also reduce the probability of the light of the first LED device group 12 influencing the display area 112. The reflective layer 40 is made of a metal material, such as aluminum, silver, etc., because the 0 reflective effect of the metal material is better.
Optionally, the display screen 100 further includes an optical film layer 50, the optical film layer 50 is disposed between the LED substrate 10 and the liquid crystal panel 20, the optical film layer 50 is located on the light blocking wall 30, and projects from the liquid crystal panel 20 to the LED substrate 10, and a projection area of the optical film layer 50 coincides with a projection area of the backlight area 111. In order to further improve the display effect of the backlight area 111 of the display panel 100, a light film layer for enhancing the display effect is disposed between the LED substrate 10 and the liquid crystal panel 20. Meanwhile, the optical film 50 is located on the light blocking wall 30, so that the light blocking wall 30 can support the optical film 50, thereby further ensuring the stability of the optical film 50 after being arranged. It should be noted that the optical film layer 50 can be directly abutted against the upper surface of the light blocking wall 30 for supporting, so that the light blocking wall 30 can ensure that the gap between the optical film layer 50 and the LED substrate 10 is completely blocked, so as to improve the light blocking effect of the light blocking wall 30. Or the optical film layer 50 may be fixed by the sealant, and then the sealant is abutted by the light blocking wall 30 to indirectly support the optical film layer 50, which may be set by those skilled in the art according to specific situations.
Further, the display screen 100 further includes a packaging adhesive layer 60, the packaging adhesive layer 60 encapsulates the second LED device group 13, and a surface of the liquid crystal panel 20 away from the optical film layer 50 is flush with a surface of the packaging adhesive layer 60 away from the second LED device group 13. The second LED device group 13 is encapsulated and protected by the encapsulation adhesive layer 60, and the side wall surfaces of the encapsulation adhesive layer 60 are also attached to the side wall surface of the liquid crystal panel 20 and the side wall surface of the optical film layer 50, so as to achieve an encapsulation effect on the side surface of the backlight area 111 of the LED substrate 10. The surface of the liquid crystal panel 20 away from the optical film 50 is flush with the surface of the packaging adhesive layer 60 away from the second LED device group 13, so as to ensure the high uniformity of the backlight area 111 and the display area 112, thereby improving the optical uniformity, further improving the overall appearance of the display screen 100 and improving the brightness difference between the display area 112 and the backlight area 111.
Optionally, the first LED device group 12 includes a plurality of spaced blue light emitting LED devices, and the optical film layer 50 includes a light conversion film. Projected from the LED substrate 10 toward the liquid crystal panel 20, the projected areas of the plurality of blue light emitting LED devices are located within the projected area of the light conversion film. The plurality of blue light-emitting LED devices are arranged as the backlight source, and the light conversion film is covered with the plurality of blue light-emitting LED devices and is a quantum dot color conversion layer, so that the original surface luminescence is changed into quantum dot luminescence, and the visual angle of the backlight area 111 of the display screen 100 is further improved to be consistent with the visual angle of the display area 112, and the display effect is further improved.
Alternatively, the liquid crystal panel 20 includes a display region 112 and a non-display region 22 surrounding the display region 112, the non-display region 22 is provided with a black matrix 221, and the black matrix 221 is disposed corresponding to the light blocking wall 30. Thus, the black matrix 221 can reduce the light leakage of the display light in the backlight area 111 or the color mixture to the display area 112, thereby ensuring the display effect of the display panel 100.
In some embodiments, the optical film layer 50 further comprises a diffuser film and a brightness enhancing film disposed in a stack. It can be understood that the display viewing angle of the backlight area 111 of the display screen 100 is further increased by disposing the diffusion film, and this can achieve the effect of directionally increasing the viewing angle brightness and improving the uniformity of the viewing angle brightness by disposing the brightness enhancement film, thereby improving the overall display effect of the display screen 100.
Referring to fig. 4, the tiled display device 1000 provided in the embodiment of the present application includes at least two display panels 100, where the display panels 100 are described above, and the LED substrate 10 of one display panel 100 is tiled with the LED substrate 10 of another display panel 100. After the splicing, the display area 112 of each display screen 100 can be displayed at the splicing joints of the two display screens 100, so that the process that the splicing joints are separately and additionally provided with the LED direct-display light bars is avoided, the splicing efficiency can be effectively improved, the cost is reduced, the display problem caused by the fact that the splicing LED direct-display light bars are protruded can be effectively reduced, the appearance can be effectively improved, the brightness difference can be effectively improved, and the display effect is further improved.
The display screen and the tiled display device provided by the embodiment of the application are described in detail above, a specific example is applied in the description to explain the principle and the implementation of the application, and the description of the embodiment is only used to help understand the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A display screen, comprising:
the LED substrate comprises a substrate, a first LED device group and a second LED device group, wherein the substrate comprises a backlight area and a display area, and the display area is positioned on at least one side of the backlight area; the first LED device group is disposed on the backlight area on the substrate; the second LED device group is arranged in the display area on the substrate and used for displaying pictures; and
the liquid crystal panel is arranged on the LED substrate and is positioned in the backlight area.
2. A display screen in accordance with claim 1, wherein the display screen further comprises a light blocking wall disposed on the substrate between the backlight area and the display area.
3. The display screen of claim 2, wherein the display screen further comprises a reflective layer, and the reflective layer is disposed on a side of the light blocking wall facing the backlight area.
4. The display screen of claim 2, further comprising an optical film layer disposed between the LED substrate and the liquid crystal panel, wherein the optical film layer is located on the light blocking wall, and a projection area of the optical film layer coincides with a projection area of the backlight area when the optical film layer projects from the liquid crystal panel toward the LED substrate.
5. The display screen of claim 4, further comprising an encapsulation glue layer encapsulating the second set of LED devices, wherein a side of the liquid crystal panel away from the optical film layer is flush with a side of the encapsulation glue layer away from the second set of LED devices.
6. A display screen as recited in claim 4, wherein the first set of LED devices includes a plurality of spaced apart blue emitting LED devices, the optical film layer including a light conversion film;
and the projection area of the plurality of blue light-emitting LED devices is positioned in the projection area of the light conversion film.
7. A display screen as recited in any one of claims 2-6, wherein the optical film layer further comprises a diffuser film and a brightness enhancement film disposed in a stack.
8. A display screen according to any one of claims 2 to 6, wherein the liquid crystal panel includes a display region and a non-display region surrounding the display region, the non-display region being provided with a black matrix, the black matrix being provided in correspondence with the light blocking wall.
9. The display screen of any one of claims 1 to 6, wherein the first LED device group includes a plurality of first LED devices, the second LED device group includes a plurality of second LED devices, a pitch of two adjacent first LED devices is S1, a pitch of two adjacent second LED devices is S2, and S1 > S2.
10. A tiled display arrangement comprising at least two display panels according to any of claims 1 to 9, wherein the LED substrate of one of said display panels is tiled with the LED substrate of another of said display panels.
CN202210613267.2A 2022-05-31 2022-05-31 Display screen and spliced display device Active CN114973984B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210613267.2A CN114973984B (en) 2022-05-31 2022-05-31 Display screen and spliced display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210613267.2A CN114973984B (en) 2022-05-31 2022-05-31 Display screen and spliced display device

Publications (2)

Publication Number Publication Date
CN114973984A true CN114973984A (en) 2022-08-30
CN114973984B CN114973984B (en) 2023-10-31

Family

ID=82957911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210613267.2A Active CN114973984B (en) 2022-05-31 2022-05-31 Display screen and spliced display device

Country Status (1)

Country Link
CN (1) CN114973984B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115933234A (en) * 2022-11-08 2023-04-07 Tcl华星光电技术有限公司 Spliced display screen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060092347A1 (en) * 2004-09-22 2006-05-04 Lg.Philips Lcd Co. Ltd. Liquid crystal display device having high brightness
CN102236213A (en) * 2010-04-23 2011-11-09 北京京东方光电科技有限公司 Liquid crystal panel, manufacturing method thereof and liquid crystal display
CN102645767A (en) * 2012-04-28 2012-08-22 深圳市华星光电技术有限公司 Rubber frame of liquid crystal display module and liquid crystal display device
CN208188529U (en) * 2018-04-26 2018-12-04 佛山市国星光电股份有限公司 A kind of back light unit, backlight module and its display device
CN210244017U (en) * 2019-07-26 2020-04-03 深圳市瑞丰光电子股份有限公司 Backlight module and display screen
CN113050110A (en) * 2021-04-09 2021-06-29 艾普柯微电子(江苏)有限公司 Photoelectric sensor, preparation method thereof and distance measuring device
CN114035376A (en) * 2021-11-24 2022-02-11 京东方科技集团股份有限公司 Display module, manufacturing method thereof and display device
CN114038340A (en) * 2021-11-29 2022-02-11 深圳市华星光电半导体显示技术有限公司 Splicing display device and splicing display screen
CN114171508A (en) * 2021-12-09 2022-03-11 Tcl华星光电技术有限公司 Spliced screen, preparation method thereof and display device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060092347A1 (en) * 2004-09-22 2006-05-04 Lg.Philips Lcd Co. Ltd. Liquid crystal display device having high brightness
CN102236213A (en) * 2010-04-23 2011-11-09 北京京东方光电科技有限公司 Liquid crystal panel, manufacturing method thereof and liquid crystal display
CN102645767A (en) * 2012-04-28 2012-08-22 深圳市华星光电技术有限公司 Rubber frame of liquid crystal display module and liquid crystal display device
CN208188529U (en) * 2018-04-26 2018-12-04 佛山市国星光电股份有限公司 A kind of back light unit, backlight module and its display device
CN210244017U (en) * 2019-07-26 2020-04-03 深圳市瑞丰光电子股份有限公司 Backlight module and display screen
CN113050110A (en) * 2021-04-09 2021-06-29 艾普柯微电子(江苏)有限公司 Photoelectric sensor, preparation method thereof and distance measuring device
CN114035376A (en) * 2021-11-24 2022-02-11 京东方科技集团股份有限公司 Display module, manufacturing method thereof and display device
CN114038340A (en) * 2021-11-29 2022-02-11 深圳市华星光电半导体显示技术有限公司 Splicing display device and splicing display screen
CN114171508A (en) * 2021-12-09 2022-03-11 Tcl华星光电技术有限公司 Spliced screen, preparation method thereof and display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115933234A (en) * 2022-11-08 2023-04-07 Tcl华星光电技术有限公司 Spliced display screen
CN115933234B (en) * 2022-11-08 2024-04-19 Tcl华星光电技术有限公司 Spliced display screen

Also Published As

Publication number Publication date
CN114973984B (en) 2023-10-31

Similar Documents

Publication Publication Date Title
US9715135B2 (en) Liquid crystal display device
US7530711B2 (en) Backlight assembly and liquid crystal display module using the same
JP4787224B2 (en) Seamless display manufacturing method
JP4729720B2 (en) Planar illumination device and liquid crystal display device using the planar illumination device as a backlight
KR102395088B1 (en) Backlight unit and liquid crystal dispaly device including the same
US10698259B2 (en) Deformed liquid crystal display device
KR20090000374A (en) Backlight unit and liquid crystal display device having the same
KR102460231B1 (en) Backlight unit and liquid crystal dispaly device including the same
CN103676228A (en) Liquid crystal display device
WO2022088590A1 (en) Display device
CN110221479B (en) Backlight module and display device
WO2020147213A1 (en) Support structure, backlight unit and display panel
KR20110064743A (en) Backlight unit and liquid crystal display device having the same
CN113764455B (en) Spliced display panel and spliced display device
US8823902B2 (en) Liquid crystal display device
CN114973984B (en) Display screen and spliced display device
CN113748372B (en) Bar display structure, display panel and display device
KR20110070603A (en) Backlight unit and liquid crystal display device having thereof
JP2009037946A (en) Backlight unit and display device
CN114299828B (en) Display unit, spliced screen and display device
CN215987941U (en) Gridding display screen
US11327351B2 (en) Display device including a light shielding layer covering a gap
CN114171508A (en) Spliced screen, preparation method thereof and display device
KR20110057710A (en) Backlight unit and liquid crystal display device having the same
CN215181317U (en) Display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant