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CN114859610A - Display screen and display device - Google Patents

Display screen and display device Download PDF

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Publication number
CN114859610A
CN114859610A CN202210566502.5A CN202210566502A CN114859610A CN 114859610 A CN114859610 A CN 114859610A CN 202210566502 A CN202210566502 A CN 202210566502A CN 114859610 A CN114859610 A CN 114859610A
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CN
China
Prior art keywords
substrate
display panel
display
display screen
base plate
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
CN202210566502.5A
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Chinese (zh)
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CN114859610B (en
Inventor
陶治橙
康报虹
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.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Original Assignee
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Priority to CN202210566502.5A priority Critical patent/CN114859610B/en
Publication of CN114859610A publication Critical patent/CN114859610A/en
Application granted granted Critical
Publication of CN114859610B publication Critical patent/CN114859610B/en
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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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • 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
    • G02F1/1343—Electrodes
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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

Abstract

The application discloses display screen and display device, the display screen is including corresponding first display panel and the second display panel who sets up, first display panel is including relative first base plate and the second base plate that sets up, the second display panel is including relative third base plate and the fourth base plate that sets up, second base plate and third base plate all are array substrate, a public substrate of second base plate and third base plate sharing, and the initiative switch layer in the second base plate and the initiative switch layer in the third base plate set up the both sides at public substrate respectively. Through the arrangement, the alignment of the second base plate and the third base plate can be completed in the process of manufacturing the display screen, so that the alignment of the first display panel and the second display panel is more accurate, the display screen is simpler to assemble, a common substrate is shared by the second base plate and the third base plate, a substrate is reduced, the whole thickness of the display screen is reduced, and the bending performance of the display screen is improved.

Description

Display screen and display device
Technical Field
The application relates to the technical field of display, in particular to a display screen and a display device.
Background
The backlight of the existing display device is composed of a large number of LED lamps, and the backlight is full-surface light emitting, which results In low contrast ratio of the display panel, especially light leakage of IPS (In-Plane Switching) display panel is more serious than that of VA (Vertical Alignment) display panel, and energy waste is also caused. A common mode in the industry is to use a local dimming technology, that is, a mode of lighting a backlight in a divisional manner to improve contrast and energy saving effects, but a display device using the local dimming technology causes a problem that a display image generates a halo at a junction between bright and dark when a display panel displays.
Generally, a person skilled in the art adopts a dual-layer display panel to solve the halo problem of the display panel, but the alignment of the dual-layer display panel is difficult and the thickness of the dual-layer display panel is large, so how to reduce the alignment difficulty of the dual-layer display panel and the trend of being beneficial to the development of light and thin products becomes a problem to be solved urgently in the art.
Disclosure of Invention
The application aims to provide a display screen and a display device, and the problems that the alignment of the display screen is difficult and the thickness is large due to the halo problem of a display picture and the two panels are solved.
The application discloses display screen includes: the display panel comprises a first display panel and a second display panel which are correspondingly arranged, wherein the first display panel comprises a first substrate and a second substrate which are oppositely arranged, the second display panel comprises a third substrate and a fourth substrate which are oppositely arranged, and the second substrate and the third substrate are both array substrates; the second base plate and the third base plate share a common substrate, and the active switch layer in the second base plate and the active switch layer in the third base plate are respectively arranged on two sides of the common substrate.
Optionally, the first display panel is located at a light incident side of the display screen; the second display panel is located on the light emitting side of the display screen, and the number of pixels of the first display panel is more than that of the second display panel.
Optionally, the second display panel includes a plurality of second display units, the second display units are composed of an odd number of pixels in the second display panel, the first display panel includes a plurality of first display units, the first display unit is composed of one pixel in the first display panel, and an orthographic projection of the pixel in the first display unit on the common substrate overlaps with an orthographic projection of the pixel at a central position in the second display unit on the common substrate.
Optionally, the second display unit is composed of 9 pixels in the second display panel, and the 9 pixels are arranged in a squared figure.
Optionally, the display screen includes a first driving chip for driving the first display panel and a second driving chip for driving the second display panel; the first driving chip is arranged on one side, facing the first base plate, of the public substrate, the second driving chip is arranged on one side, facing the fourth base plate, of the public substrate, and the first driving chip and the driving chips are arranged in a staggered mode.
Optionally, the active switches in the second substrate and the third substrate both adopt a top gate structure.
Optionally, the first display panel further includes a first liquid crystal layer, the first liquid crystal layer is disposed between the first substrate and the second substrate, and the first substrate is a glass substrate; the second display panel further comprises a second liquid crystal layer, the second liquid crystal layer is arranged between the third substrate and the fourth substrate, and the fourth substrate is a color film substrate.
Optionally, a first buffer layer is arranged between the active switch layer of the first display panel and the common substrate, a second buffer layer is arranged between the active switch layer of the second display panel and the common substrate, and the first buffer layer and the second buffer layer are both made of insulating materials.
Optionally, the display screen further includes a transparent electrode layer, and the transparent electrode layer is disposed on a side of the fourth substrate far away from the third substrate.
The application also discloses a display device, display device includes backlight unit and the aforesaid the display screen, backlight unit sets up go into plain noodles one side of display screen.
Compared with the scheme that the first display panel and the second display panel are directly stacked together, the alignment of the second substrate and the third substrate can be completed in the manufacturing process of the display screen by arranging the array substrate in the first display panel and the array substrate in the second display panel on the same common substrate, namely the second substrate and the third substrate share the common substrate, so that the alignment of the first display panel and the second display panel is more accurate, the assembly of the display screen is simpler, and one substrate is reduced by sharing the common substrate by the second substrate and the third substrate, thereby reducing the whole thickness of the display screen and improving the bending performance of the display screen.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a display screen according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a top view of a display screen of an embodiment of the present application;
fig. 4 is a schematic diagram of a filter layer corresponding to a transparent electrode layer according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an active switch in the second substrate and an active switch in the third substrate according to an embodiment of the present application.
10, a display device; 20. a display screen; 30. a backlight module; 100. a first display panel; 110. a first substrate; 120. a second substrate; 130. a first display unit; 200. a second display panel; 210. a third substrate; 220. a fourth substrate; 230. a second display unit; 300. a common substrate; 310. an active switching layer; 311. an active switch; 320. a first driver chip; 330. a second driver chip; 340. a filter layer; 341. color resistance; 350. a first liquid crystal layer; 360. a second liquid crystal layer; 370. a glass substrate; 380. a display area; 410. a first buffer layer; 420. a second buffer layer; 500. and a transparent electrode layer.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application is described in detail below with reference to the figures and alternative embodiments.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application, and as shown in fig. 1, a display device 10 is disclosed, where the display device 10 includes a backlight module 30 and a display screen 20, the backlight module 30 is disposed corresponding to the display screen 20 and provides a light source for the display screen 20, the backlight module 30 has a local dimming function, the local dimming is implemented by lighting the backlight in a partition manner, turning on the backlight at a position where the backlight module 30 corresponds to the display screen 20 and needs to display a picture, and turning off the backlight at a position where the backlight module 30 does not need to display a picture on the display screen 20, but because a bead size on the backlight is much larger than a pixel size, a problem of halo may occur at a boundary between a display picture and a non-display picture corresponding to the display screen 20 when the backlight at the boundary between the display picture and the non-display picture is in a lighting state, the reason is that the backlight module 30 with the local dimming technology is not fine enough in partitions.
Therefore this application is through using double-deck display panel, and the scheme that a display panel 20 was formed in the panel combination of adjusting luminance promptly, and display panel mainly used shows the picture, and the panel setting of adjusting luminance plays the effect of carrying out the secondary and adjusting luminance to being shaded between display panel and backlight unit 30, and then solves display panel's halo problem. Specifically, the method comprises the following steps:
fig. 2 is a schematic structural diagram of a display screen according to an embodiment of the present application, and as shown in fig. 2, the present application discloses a display screen 20, where the display screen 20 includes a first display panel 100 and a second display panel 200 that are correspondingly disposed, the first display panel 100 includes a first substrate 110 and a second substrate 120 that are disposed opposite to each other, the second display panel 200 includes a third substrate 210 and a fourth substrate 220 that are disposed opposite to each other, and the second substrate 120 and the third substrate 210 are both array substrates; the second substrate 120 and the third substrate 210 share a common substrate 300, and the active switch layer 310 in the second substrate 120 and the active switch layer 310 in the third substrate 210 are respectively disposed on two sides of the common substrate 300.
The first display panel 100 serves as a dimming panel to perform secondary dimming, and the second display panel 200 serves as a display panel to display a screen. Since the first display panel 100 has the function of adjusting the backlight for the second time, the alignment between the first display panel 100 and the second display panel 200 is very important, and if the second display panel 200 is directly stacked on the first display panel 100, the first display panel 100 and the second display panel 200 are easily misaligned, and the thickness of the obtained display screen 20 is large, and the bending performance is not good.
Compared with the scheme of directly stacking the first display panel 100 and the second display panel 200 together, in the present application, the array substrate in the first display panel 100 and the array substrate in the second display panel 200 are disposed on the same common substrate 300, that is, the second substrate 120 and the third substrate 210 share the common substrate 300, so that the alignment of the second substrate 120 and the third substrate 210 can be completed in the manufacturing process of the display screen 20, the alignment of the first display panel 100 and the second display panel 200 is more accurate, the assembly of the display screen 20 is simpler, and one substrate is reduced by sharing the common substrate 300 by the second substrate 120 and the third substrate 210, thereby reducing the overall thickness of the display screen 20 and improving the bending performance of the display screen 20.
Wherein the first display panel 100 further includes a first liquid crystal layer 350, the first liquid crystal layer 350 is disposed between the first substrate 110 and the second substrate 120, and the first substrate 110 is a glass substrate 370; the second display panel 200 further includes a second liquid crystal layer 360, the second liquid crystal layer 360 is disposed between the third substrate 210 and the fourth substrate 220, the fourth substrate 220 is a color filter substrate, the color filter substrate generally includes a filter layer 340 and a substrate, that is, the filter layer 340 is disposed on one side of the fourth substrate 220 close to the third substrate 210, and of course, the filter layer 340 may also be disposed on the third substrate 210.
That is, the first substrate 110 is bare glass, other structures are not disposed on the surface of the first substrate 110, and the first liquid crystal layer 350 is disposed only in a cell-to-cell relationship with the second substrate 120, so that the light transmittance of the first display panel is greatly improved. The first display panel 100 and the second display panel 200 may both be IPS display panels, or may both be VA display panels, or certainly, one of the IPS display panels and one of the VA display panels may be used. The preferred first display panel 100 that adopts is the VA display panel, the second display panel 200 is the IPS display panel, because the cost of VA display panel is lower for the cost of IPS display panel, can reduce the cost of whole display screen 20, and VA display panel's shading performance is better for the shading performance of IPS display panel, adopt VA display panel as first display panel 100 to carry out the secondary dimming to the light source of backlight unit 30 like this, be more favorable to improving display screen 20's contrast, and fine the serious problem of IPS display panel light leak of having alleviated, consequently, adopt the IPS display panel to show as second display panel 200, adopt VA display panel as first display panel to carry out the secondary dimming, obtained the display screen 20 that possesses high contrast and wide visual angle.
The manufacturing process of the display panel of the present application may be to prepare the active switch layer 310 of the second substrate 120 on the common substrate 300, then to join the first substrate 110, since the first substrate 110 is bare glass, the active switch layer 310 of the third substrate 210 may be directly prepared on the other side of the common substrate 300, and finally to the fourth substrate 220, or of course, the active switch layer 310 of the second substrate 120 may be prepared on the common substrate 300, after that, to coat the photoresist on the active switch layer 310 of the second substrate 120, then to prepare the active switch layer 310 of the third substrate 210, after the preparation of the active switch layer 310 of the third substrate 210 is completed, to wash off the photoresist on the second substrate 120 using a stripping liquid, and finally to join the first substrate 110 or the second substrate 120, thereby completing the manufacturing process of the display panel 20.
Further, when the active switching layer 310 is prepared on the common substrate 300, the number of pixels of the first display panel 100 may be controlled to be greater than the number of pixels of the second display panel 200. That is, the resolution of the second display panel 200 is higher than the resolution of the first display panel 100, the number of the active switches 311 in the second substrate 120 may also be set to be smaller than the number of the active switches 311 in the third substrate 210, so as to further save the cost and relieve the processing capability of the driving chip in the first display panel 100.
The second display panel 200 may be divided into a plurality of second display units 230, each second display unit 230 is composed of an odd number of pixels in the second display panel 200, the first display panel 100 is divided into a plurality of first display units 130, each first display unit 130 is composed of one pixel in the first display panel 100, and the first display units 130 and the second display units 230 correspond to each other, so that an orthographic projection of a pixel in the first display unit 130 on the common substrate 300 overlaps an orthographic projection of a pixel in a central position in the second display unit 230 on the common substrate 300. That is, the active switch 311 in the first display unit 130 overlaps with the active switch 311 in the second display unit 230, and also overlaps with the middle active switch 311 in the second display unit 230, so that the active switch 311 on the second substrate 120 is prevented from blocking the opening positions of two adjacent active switches 311 of the third substrate 210, and the aperture ratio of the display screen 20 is improved.
Preferably, the first display unit 130 has only one pixel, the second display unit 230 has 9 pixels arranged in a matrix of 3 by 3 to form a nine-square grid, the edge of the nine-square grid area is an edge pixel, the middle is a middle pixel, and the pixel in the first display unit 130 overlaps with the middle pixel in the second display unit 230, that is, the active switch 311 in the first display unit 130 overlaps with the active switch 311 in the middle of the active switches 311 arranged in the nine-square grid in the second display unit 230.
The display screen 20 further includes a first driving chip 320 for driving the first display panel 100 and a second driving chip 330 for driving the second display panel 200; the first driving chip 320 is disposed on a side of the common substrate 300 facing the first base plate 110, the second driving chip 330 is disposed on a side of the common substrate 300 facing the fourth base plate 220, and the first driving chip 320 and the driving chips are disposed in a staggered manner.
Specifically, the first driving chip 320 may be disposed at the upper left corner of the common substrate 300, the second driving chip 330 may be disposed at the lower left corner of the common substrate 300, and then the wires are wound to make each of the wires connected to the driving chips equal in length; the influence on the first driver chip 320 when the first driver chip 320 is bound and the second driver chip 330 is bound is avoided.
Fig. 3 is a schematic diagram of a top view of a display screen according to an embodiment of the present disclosure, as shown in fig. 3, of course, the first driving chip 320 may be disposed close to the display area 380, and the second driving chip 330 may be disposed on a side of the first driving chip 320 away from the display area 380, so that the positions of the first driving chip 320 and the second driving chip 330 do not need to be changed, the driving chips may be located on a central line of the display area 380, and the arrangement of the conductive wires does not need to be redesigned, which is more convenient.
Fig. 4 is a schematic view of a filter layer corresponding to a transparent electrode layer according to an embodiment of the disclosure, and as shown in fig. 1 and fig. 4, the display screen 20 further includes a transparent electrode layer 500, and the transparent electrode layer 500 is disposed on a side of the fourth substrate 220 away from the third substrate 210. Prevent that outside static from directly conducting into display panel's inside to can improve the luminousness of blue color resistance 341 through the design of fretting in the position that transparent electrode layer 500 corresponds blue color resistance 341, with the effect of reaching the colour temperature of adjusting display panel. Of course, the transparent electrode layer 500 may also be designed to be hollow corresponding to the color resists of other colors, so as to adjust the transmittance of the corresponding color resists.
Fig. 5 is a schematic diagram of an active switch in the second substrate and an active switch in the third substrate 2 according to an embodiment of the present disclosure, and with reference to fig. 1 and fig. 5, the active switch 311 in the second substrate 120 adopts a top-gate structure, and the active switch 311 in the third substrate 210 also adopts a top-gate structure, and is cooperatively disposed, the gate of the active switch 311 in the second substrate 120 shields the backlight of the backlight module 30, and the gate of the active switch 311 in the third substrate 210 shields the light entering the display screen 20 from outside, so as to achieve the effects of simultaneously and significantly reducing the leakage current on the active switches 311 on the second substrate 120 and the third substrate 210, improving the control capability of the gates, improving the TFT effect, and preventing the problem of capacitance generated by too close distance between the gates on the second substrate 120 and the gates on the first substrate 110, of course, the active switch 311 in the second substrate 120 and the active switch 311 in the third substrate 210 may also adopt a bottom-gate structure And the parasitic capacitance generated between the grid and the source and the drain is reduced, so that the display effect is influenced.
A first buffer layer 410 is disposed between the active switching layer 310 of the first display panel 100 and the common substrate 300, and a second buffer layer 420 is disposed between the active switching layer 310 of the second display panel 200 and the common substrate 300. The first buffer layer 410 and the second buffer layer 420 are made of an insulating material, so that a capacitance between the gate electrode on the first substrate 110 and the gate electrode on the second substrate 120 due to a too close distance between the gate electrode on the second substrate 120 and the gate electrode on the first substrate 110 is further prevented.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims (10)

1. A display screen is characterized by comprising a first display panel and a second display panel which are correspondingly arranged, wherein the first display panel comprises a first substrate and a second substrate which are oppositely arranged, the second display panel comprises a third substrate and a fourth substrate which are oppositely arranged, and the second substrate and the third substrate are both array substrates;
the second base plate and the third base plate share a common substrate, and the active switch layer in the second base plate and the active switch layer in the third base plate are respectively arranged on two sides of the common substrate.
2. The display screen of claim 1, wherein the first display panel is located at a light incident side of the display screen; the second display panel is located on the light emitting side of the display screen, and the number of pixels of the first display panel is more than that of the second display panel.
3. A display screen according to claim 2, wherein the second display panel includes a plurality of second display elements, the second display elements being composed of an odd number of pixels in the second display panel, the first display panel includes a plurality of first display elements, the first display elements being composed of one pixel in the first display panel, and an orthographic projection of the pixel in the first display element on the common substrate overlaps with an orthographic projection of the pixel in a central position in the second display element on the common substrate.
4. The display screen of claim 3, wherein the second display unit is composed of 9 pixels in the second display panel, and the 9 pixels are arranged in a grid of nine squares.
5. The display screen of claim 1, wherein the display screen comprises a first driving chip for driving the first display panel and a second driving chip for driving the second display panel;
the first driving chip is arranged on one side, facing the first base plate, of the public substrate, the second driving chip is arranged on one side, facing the fourth base plate, of the public substrate, and the first driving chip and the driving chips are arranged in a staggered mode.
6. The display screen of claim 1, wherein the active switches in the second substrate and the third substrate are both in a top gate structure.
7. A display screen according to claim 1, wherein the first display panel further comprises a first liquid crystal layer disposed between the first substrate and the second substrate, the first substrate being a glass substrate;
the second display panel further comprises a second liquid crystal layer, the second liquid crystal layer is arranged between the third substrate and the fourth substrate, and the fourth substrate is a color film substrate.
8. The display screen of claim 1, wherein a first buffer layer is disposed between the active switch layer of the first display panel and the common substrate, a second buffer layer is disposed between the active switch layer of the second display panel and the common substrate, and the first buffer layer and the second buffer layer are both made of insulating materials.
9. The display screen of claim 7, further comprising a transparent electrode layer disposed on a side of the fourth substrate away from the third substrate.
10. A display device, comprising a backlight module and the display screen of any one of claims 1 to 9, wherein the backlight module is disposed on one side of the light incident surface of the display screen.
CN202210566502.5A 2022-05-24 2022-05-24 Display screen and display device Active CN114859610B (en)

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