CN110989230B - Display device and electronic apparatus - Google Patents

Display device and electronic apparatus Download PDF

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Publication number
CN110989230B
CN110989230B CN201911371533.XA CN201911371533A CN110989230B CN 110989230 B CN110989230 B CN 110989230B CN 201911371533 A CN201911371533 A CN 201911371533A CN 110989230 B CN110989230 B CN 110989230B
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China
Prior art keywords
backlight
panel
pins
binding region
backlight module
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CN201911371533.XA
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CN110989230A (en
Inventor
刘雨佳
胡安乐
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN201911371533.XA priority Critical patent/CN110989230B/en
Publication of CN110989230A publication Critical patent/CN110989230A/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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels

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

Abstract

The embodiment of the application discloses display device and electronic equipment, this display device includes: a backlight module; the display panel is arranged on the backlight module; the chip on film is provided with a first binding end and a second binding end which are arranged oppositely, and the first binding end is connected with the backlight module and the display panel; and the second binding end is connected with the driving circuit board. The scheme simplifies the driving structure in the display device and reduces the cost of the whole machine assembly.

Description

Display device and electronic apparatus
Technical Field
The application relates to the technical field of display, in particular to a display device and electronic equipment.
Background
A Liquid Crystal Display (LCD) is light, thin, and small, and has advantages of low power consumption, no radiation, and relatively low manufacturing cost, and thus is dominant in the Display field. The liquid crystal display comprises a backlight module and a display panel, wherein the backlight module provides a light source for the display panel, and the backlight source is the largest energy consumer in the whole machine. Therefore, how to reduce the power consumption of the backlight has been widely focused in the industry, such as improving the driving circuit of the backlight, improving the light emitting efficiency of the light source, developing a new light source, and the like, wherein Local dimming (Local dimming) is one of the technologies that are most easily implemented and have the most obvious effect, and can greatly reduce the power consumption and improve the contrast value and the gray scale number of the display screen. However, in the prior art, two sets of driving devices need to be arranged for the display panel and the backlight source, the driving structure is complex, and the assembly cost of the whole machine is high.
Disclosure of Invention
The application provides a display device and electronic equipment, which are used for solving the technical problems of complex driving structure and high whole machine assembly cost in the display device.
The application provides a display device, its characterized in that includes:
a backlight module;
the display panel is arranged on the backlight module;
the chip on film is provided with a first binding end and a second binding end which are arranged oppositely, and the first binding end is connected with the backlight module and the display panel; and
and the second binding end is connected with the driving circuit board.
In the display device provided by the application, a panel binding region is arranged on the display panel, a backlight binding region is arranged on the backlight module, the panel binding region and the backlight binding region are correspondingly arranged, and the first binding end is correspondingly bound on the panel binding region and the backlight binding region.
In the display device provided by the application, the panel binding region comprises a first panel binding region, a plurality of first transmission pins are arranged on the first panel binding region, and the first transmission pins are electrically connected with the display panel;
the backlight binding region comprises a first backlight binding region, a plurality of second transmission pins are arranged on the first backlight binding region, and the second transmission pins are electrically connected with the backlight module;
the first panel binding region and the first backlight binding region are arranged in a staggered mode.
In the display device provided by the application, the panel binding region further comprises a second panel binding region, the second panel binding region is provided with a plurality of first pins, and the first pins and the second transmission pins are correspondingly arranged.
In the display device provided by the application, the backlight binding region further comprises a second backlight binding region, wherein a plurality of second pins are arranged on the second backlight binding region, and the second pins are arranged corresponding to the first transmission pins.
In the display device provided by the application, the width of the first transmission pins is equal to that of the second transmission pins, and the distance between the adjacent first transmission pins is equal to that between the adjacent second transmission pins.
In the display device provided by the application, the chip on films include a plurality of first chip on films and a plurality of second chip on films, and at least one first chip on film is arranged between the adjacent second chip on films, wherein the first chip on film is used for outputting the display signal output by the driving circuit board to the display panel, and the second chip on film is used for outputting the backlight signal output by the driving circuit board to the backlight module.
In the display device provided by the application, a plurality of first connecting pins are arranged on the first binding end, and the plurality of first connecting pins are bound on the display panel and the backlight module; the second binding end is provided with a plurality of second connecting pins, and the plurality of second connecting pins are bound on the driving circuit board.
In the display device provided by the application, the panel binding region and/or the backlight binding region are further provided with at least one alignment pin.
The application also provides an electronic device comprising the display device.
The application provides a display device and electronic equipment, utilize the cover brilliant film to bind display panel and the drive circuit in a poor light together, drive display panel and be shaded respectively through same drive circuit board, simplified display device's drive structure, reduced the cost of complete machine equipment.
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 device provided in an embodiment of the present application;
FIG. 2 is a schematic view of a first enlarged structure of the display panel and the backlight module of FIG. 1 at A;
FIG. 3 is a schematic diagram of a second enlarged structure of the display panel and the backlight module of FIG. 1 at A;
FIG. 4 is a schematic view of a third enlarged structure of the display panel and the backlight module at A in FIG. 1;
FIG. 5 is a schematic view of a fourth enlarged structure of the display panel and the backlight module at A in FIG. 1;
fig. 6 is a schematic structural diagram of a chip on film.
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.
In the description of the present application, it is to be understood that the terms "upper" and "lower", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second", etc. may explicitly or implicitly include one or more of the described features and are therefore not to be construed as limiting the application.
Referring to fig. 1, an embodiment of the present application provides a display device 100. The display device 100 includes a display panel 11, a backlight module 12, a flip-chip film 13 and a driving circuit board 14. The display panel 11 is disposed on the backlight module 12. The flip-chip film 13 has a first bonding end 13a and a second bonding end 13b disposed opposite to each other. The first binding end 13a is connected to the backlight module 12 and the display panel 11. The second binding end 13b is connected to the driving circuit board 14.
The first binding end 13a may be bound with the display panel 11 and the backlight module 12 by Anisotropic Conductive Film (ACF); the second binding end 13b may also be bound with the driving circuit board 14 through an anisotropic conductive adhesive, so as to realize connection among the display panel 11, the backlight module 12, and the driving circuit board 14. In other embodiments, the first binding end 13a may be bound with the display panel 11 and the backlight module 12 by soldering, and the second binding end 13b may be bound with the driving circuit board 14.
It should be noted that the first binding end 13a of the flip chip film 13 can be bound to the side surfaces of the display panel 11 and the backlight module 12 in an edge binding manner, and is electrically connected to the display panel 11 and the backlight module 12, respectively. The first binding end 13a of the flip chip film 13 can also be bound between the binding surfaces of the display panel 11 and the backlight module 12, and is electrically connected to the display panel 11 and the backlight module 12, respectively. Then, the flip-chip film 13 is reversely bent, so that the driving circuit board 14 is located on the back side of the backlight module 12 to reduce the frame area and realize a narrow frame. In the embodiment of the present application, the first bonding end 13a of the flip-chip film 13 is bonded to the side surfaces of the display panel 11 and the backlight module 12 as an example, but the embodiment of the present application is not to be construed as a limitation to the present application.
In the embodiment of the present application, the first binding end 13a of the flip chip film 13 is bound on the display panel 11 and the backlight module 12, and the second binding end 13b is bound on the driving circuit board 14, so as to simultaneously realize the electrical connection between the display panel 11 and the driving circuit board 14 and the electrical connection between the backlight module 12 and the driving circuit board 14. Compared with the prior art that two sets of driving devices need to be arranged for the display panel 11 and the backlight module 12, the display panel 11 and the backlight module 12 can be respectively driven by the same driving circuit board 14, the driving structure of the display device 100 is simplified, and the assembly cost of the whole machine is reduced.
Referring to fig. 1, in the embodiment of the present invention, the flip-chip film 13 includes a plurality of first flip-chip films 131 and a plurality of second flip-chip films 132. At least one first flip-chip film 131 is disposed between the adjacent second flip-chip films 132. The first chip on film 131 is used for outputting the display signal output by the driving circuit board 14 to the display panel 11; the second flip-chip film 132 is used for outputting the backlight signal output by the driving circuit board 14 to the backlight module 12. The arrangement between the first flip-chip film 131 and the second flip-chip film 132 can be set according to the actual application requirements, which is not limited in the present application.
The mode of displaying the image on the display panel 11 may be high-definition display, full high-definition display, or super high-definition display, which is not limited in the present application. Different display modes represent different pixel densities of the display panel 11, and the distribution of the data lines and the gate electrodes for transmitting display data to the pixel units is also different. Each data line or gate line (not shown) is electrically connected to the driving circuit board 14 through the flip-chip film 13, i.e. the driving circuit board 14 can perform data transmission on each data line or gate line. In the backlight module 12, a plurality of light sources (not shown) are uniformly distributed at equal intervals to form a backlight source, and light emitted by the plurality of light sources is uniformly irradiated onto the display panel 11, so that the brightness uniformity of the display device can be improved. Each light source is electrically connected with the driving circuit board 14 through the chip on film 13, namely, the driving circuit board 14 can independently control each light source, and the light sources at different positions on the backlight module 12 are controlled, so that the local dimming of the display device can be realized, and the image display effect with a high dynamic range is better. Wherein the light source may be a point-like light source, such as a light emitting diode. It is understood that the light sources arranged at equal intervals can be regarded as backlights having a certain pixel density.
In the embodiment of the present application, the display device 100 includes an ultra-clear display panel and a full-high-definition backlight as an example, two first flip-chip films 131 are disposed between adjacent second flip-chip films 132 in fig. 1, so as to electrically connect the driving circuit board 14 with the display panel 11 and the backlight module 12.
Specifically, the display panel 11 is provided with a panel binding region 20; the backlight module 12 is provided with a backlight bonding area 30. The panel binding region 20 is disposed corresponding to the backlight binding region 30. The first binding end 13a is bound on the panel binding region 20 and the backlight binding region 30, respectively.
Further, referring to fig. 2, fig. 2 is a schematic view of a first enlarged structure of the display panel 11 and the backlight module 12 in fig. 1 at a position a. The panel binding area 20 includes a first panel binding area 21. The first panel bonding area 21 is provided with a plurality of first transmission pins 111. The first transmission pin 111 is electrically connected to the display panel 11. The backlight binding region 30 includes a first backlight binding region 31. The first backlight bonding area 31 is provided with a plurality of second transmission pins 121. The second transmission pin 121 is electrically connected to the backlight module 12. Wherein the first panel binding region 21 is disposed to be offset from the first backlight binding region 31. It should be noted that the first panel bonding area 21 and the first backlight bonding area 31 are arranged according to the arrangement of the first chip on film 131 and the second chip on film 132. The first flip chip film 131 is electrically connected to the display panel 11 through the first transmission pins 111, and outputs the display signal output by the driving circuit board 14 to the display panel 11; the second flip-chip film 132 is electrically connected to the backlight module 12 through the second transmission pins 121, and outputs the backlight signal output by the driving circuit board 14 to the backlight module 12.
The width of the first transmission pin 111 is equal to the width of the second transmission pin 121. The distance between the adjacent first transmission pins 111 is equal to the distance between the adjacent second transmission pins 121. The arrangement can ensure that the flatness of the first panel binding area and the first backlight binding area is better, and reduce the pressing difficulty in the binding process of the chip on film 13, the display panel 11 and the backlight module 12.
The first transmission pins 111 on the display panel 11 include, but are not limited to, a gate signal transmission pin, a data signal transmission pin, a common electrode signal transmission pin, and the like. It should be understood that the data signal transmission pins are connected to the data lines on the display panel 11. The gate signal input pin is connected to the gate line. In the embodiment of the present application, the first transmission pin 111 is taken as an example of a data signal transmission pin, but the present application is not limited thereto.
In some embodiments, referring to fig. 3, the panel binding area 20 further includes a second panel binding area 22. The second panel binding region 22 has a plurality of first pins 112 disposed thereon. The first pins 112 are disposed corresponding to the second transmission pins 121.
Further, referring to fig. 4, the backlight bonding area 30 further includes a second backlight bonding area 32. The second backlight bonding area 32 is provided with a plurality of second pins 122. The second pin 122 is disposed corresponding to the first transmission pin 111. The first pins 112 and the second pins 122 are both invalid pins, that is, the first pins 112 are not connected to the display panel 11, and the second pins 122 are not connected to the backlight module 12.
Wherein, the width of the first pin 112 is the same as the width of the second transmission pin 121. The width of the second pin 122 is the same as the width of the first transmission pin 111. The flatness of the panel binding region 20 and the backlight binding region 30 can be further improved, the binding and pressing of the chip on film 13 are facilitated, pins which are regularly arranged are uniformly arranged on the attaching side faces of the display panel 11 and the backlight module 12, and the process is simpler.
Referring to fig. 5, in the embodiment of the present application, the panel bonding area 20 and/or the backlight bonding area 30 are further provided with at least one alignment pin 15. The alignment pin 15 is used as an alignment mark, when the chip on film 13 is bonded with the display panel 11 and the backlight module 12, the chip on film 13 is aligned and attached to the display panel 11 and the backlight module 12 accurately, and good contact between the chip on film 13 and the display panel 11 and the backlight module 12 is ensured. The alignment pins 15 may be disposed in the panel bonding region, and/or the backlight bonding region and the edge of each corresponding bonding region of the chip on film 13, and the specific number of the alignment pins 15 may be set according to the actual application requirements, which is not limited in the present application.
Referring to fig. 6, in the embodiment of the present application, the first binding end 13a is provided with a plurality of first connecting pins 16. The first connecting pins 16 are bonded to the display panel 11 and the backlight module 12. The second binding end 13b is provided with a plurality of second connection pins 17. A plurality of second connection pins 17 are bound on the driving circuit board 14. Wherein the width of the first connection pin 16 is equal to the width of the second connection pin 17. The distance between adjacent first connection pins 16 is equal to the distance between adjacent second connection pins 17. The width of the first connection pin 16 is equal to the width of the first transmission pin 111. The distance between the adjacent first connection pins 16 is equal to the distance between the adjacent first transmission pins 111. The arrangement can make the pins on the chip on film 13, the display panel 11 and the backlight module 12 completely overlapped and bound, and can effectively avoid crosstalk between adjacent pins.
The present application also provides an electronic apparatus including the display device in the foregoing embodiments. The electronic device may be a smart phone, a tablet computer, a video player, a Personal Computer (PC), etc., which is not limited in this application.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person 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 (9)

1. A display device, comprising:
a backlight module;
the display panel is arranged on the backlight module;
the chip on film is provided with a first binding end and a second binding end which are arranged oppositely, and the first binding end is connected with the backlight module and the display panel; and
the second binding end is connected with the driving circuit board;
the chip on film comprises a plurality of first chip on films and a plurality of second chip on films, a panel binding region is arranged on the display panel, a backlight binding region is arranged on the backlight module, the first chip on films are bound with the display panel through the panel binding region and used for outputting display signals output by the driving circuit board to the display panel, and the second chip on films are bound with the backlight module through the backlight binding region and used for outputting the backlight signals output by the driving circuit board to the backlight module.
2. The display device according to claim 1, wherein the panel binding region comprises a first panel binding region, the first panel binding region having a plurality of first transmission pins disposed thereon, the first transmission pins being electrically connected to the display panel;
the backlight binding region comprises a first backlight binding region, a plurality of second transmission pins are arranged on the first backlight binding region, and the second transmission pins are electrically connected with the backlight module;
the first panel binding region and the first backlight binding region are arranged in a staggered mode.
3. The display device according to claim 2, wherein the panel binding region further comprises a second panel binding region, the second panel binding region having a plurality of first pins disposed thereon, the first pins corresponding to the second transmission pins.
4. The display device according to claim 2 or 3, wherein the backlight bonding region further comprises a second backlight bonding region, the second backlight bonding region is provided with a plurality of second pins, and the second pins are arranged corresponding to the first transmission pins.
5. The display device according to claim 2, wherein the width of the first transmission pins is equal to the width of the second transmission pins, and a distance between adjacent first transmission pins is equal to a distance between adjacent second transmission pins.
6. The display device according to claim 1, wherein at least one of the first flip-chip films is disposed between adjacent ones of the second flip-chip films.
7. The display device according to claim 1, wherein the first binding end is provided with a plurality of first connecting pins, and the plurality of first connecting pins are bound on the display panel and the backlight module; the second binding end is provided with a plurality of second connecting pins, and the plurality of second connecting pins are bound on the driving circuit board.
8. The display device according to claim 1, wherein the panel bonding area and/or the backlight bonding area are further provided with at least one alignment pin.
9. An electronic device characterized by comprising the display device according to any one of claims 1 to 8.
CN201911371533.XA 2019-12-27 2019-12-27 Display device and electronic apparatus Active CN110989230B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN110989230B true CN110989230B (en) 2022-04-05

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CN112800713B (en) * 2021-02-10 2024-01-26 深圳市华星光电半导体显示技术有限公司 Binding pin automatic conversion method and system
CN113514973B (en) * 2021-04-02 2023-11-28 深圳市华星光电半导体显示技术有限公司 Display device
CN116246543A (en) * 2021-12-07 2023-06-09 厦门市芯颖显示科技有限公司 Flip chip film structure, display device and spliced display device

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CN105427804B (en) * 2016-01-04 2018-04-10 京东方科技集团股份有限公司 A kind of display driver circuit and control method, display device
CN107481619B (en) * 2017-09-29 2019-09-24 武汉天马微电子有限公司 Display module and display device
CN107632475B (en) * 2017-10-31 2020-11-03 武汉天马微电子有限公司 Display panel and display device
CN110556078A (en) * 2018-06-01 2019-12-10 中华映管股份有限公司 display device

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