CN110174786A - Display module and electronic device - Google Patents
Display module and electronic device Download PDFInfo
- Publication number
- CN110174786A CN110174786A CN201910367123.1A CN201910367123A CN110174786A CN 110174786 A CN110174786 A CN 110174786A CN 201910367123 A CN201910367123 A CN 201910367123A CN 110174786 A CN110174786 A CN 110174786A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- conducting
- display module
- backlight
- crystal display
- 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
Links
Classifications
-
- 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
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
Landscapes
- 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
This application discloses a kind of display modules comprising liquid crystal display, mould-group circuit-board, backlight and conducting element, liquid crystal display are formed with conducting route.Mould-group circuit-board connects liquid crystal display, and conducting route is electrically connected with mould-group circuit-board.Backlight is arranged in liquid crystal display side.Conducting element be arranged in liquid crystal display and with backlight and conducting connection.The display module of the application embodiment forms conducting route in liquid crystal display, and backlight is thus connected to mould-group circuit-board by conducting element and conducting connection.Backlight can be simply and easily realized in this way and the connection of route is connected, and can also avoid additionally being arranged switching circuit board to connect backlight and mould-group circuit-board, it is simple process, simple for structure, space can be saved and reduce cost.Disclosed herein as well is a kind of electronic devices.
Description
Technical field
This application involves field of display technology, in particular to a kind of display module and electronic device.
Background technique
In the related technology, the backlight circuit board that will be typically located electronic device side is drawn, and switching circuit board is welded to
On, then it is welded to by switching circuit board the main circuit board of opposite side, to realize the power supply of backlight.However in this way, built-up circuit
Plate runs through entire backlight module, causes complete machine needs to keep away position and considers.Moreover, in mechanicalness test process, backlight source circuit
There is the risk for fractureing and scratching in the stretching end structure of plate.In addition, the manufacturing process of backlight module is caused to increase twice in this way
Welding sequence, complex process increase rosin joint solder skip risk.
Summary of the invention
This application provides a kind of display module and electronic devices.
The display module of the application embodiment includes:
Liquid crystal display, the liquid crystal display are formed with conducting route；
The mould-group circuit-board of the liquid crystal display is connected, the conducting route is electrically connected with the mould-group circuit-board；
The backlight of the liquid crystal display side is set；With
Conducting element, the conducting element be arranged in the liquid crystal display and with the backlight and the conducting route
Connection.
The electronic device of the application embodiment includes main circuit board and above-mentioned display module, and the mould-group circuit-board connects
Connect the main circuit board.
The display module and electronic device of the application embodiment form conducting route, and backlight in liquid crystal display
It is arranged in liquid crystal display and conducting connection by conducting element, is thus connected to mould-group circuit-board.It in this way can be simple
It conveniently realizes backlight and the connection of route is connected, can also avoid that switching circuit board additionally is arranged to connect backlight and mould
Group circuit board, it is simple process, simple for structure, space can be saved and reduce cost.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the floor map of the electronic device of the application embodiment；
Fig. 2 is schematic cross-section of the Fig. 1 along the direction II-II；
Fig. 3 is the enlarged diagram of the part-structure of the display module of Fig. 2；
Fig. 4 is the floor map of the display module of the application embodiment；
Fig. 5 is the enlarged diagram of the part-structure of the display module of Fig. 4；
Fig. 6 is the manufacture schematic diagram of a scenario of the display module of the application embodiment；
Fig. 7 is the partial structure diagram of the display module of another embodiment of the application；
Fig. 8 is the decomposition diagram of the display module of the application embodiment；
Fig. 9 is the decomposition diagram of the display module of the application embodiment；
Figure 10-Figure 17 is the structural schematic diagram of the lustre adding layer of the application embodiment；
Figure 18 is the decomposition diagram of the display module of another embodiment of the application；
Figure 19 is the decomposition diagram of the display module of the another embodiment of the application；
Figure 20 is the diagrammatic cross-section of the light guide plate of the application embodiment；
Figure 21 is the diagrammatic cross-section of the light guide plate of another embodiment of the application；
Main element symbol description:
Electronic device 100, main circuit board 10, display module 20, liquid crystal display 22, edge 221, opening 223, liquid crystal layer
222, conductive layer 224, edge 2241, conducting route 2242, intermediate position 2243, pad 2245, first through hole 2246, the
Two through-holes 2247, filter layer 226, polarizing layer 228, mould-group circuit-board 24, backlight 26, adhesive tape 261, backlight circuit board 262,
Illumination region 264, conducting element 28, driving chip 29, bolster 30, framework 11, lustre adding layer 12, area 122 of adding lustre to, through-hole 1222,
First transparent area 124, the first bright enhancement film 126, the second bright enhancement film 128, diffusion barrier 14, light diffusion region 142, the second transparent area 144,
Light guide plate 16, light guiding points 162, the first light guide section 164, the second light guide section 166, reflector plate 18, function element 300.
Specific embodiment
Presently filed embodiment is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.
Following disclosure provides many different embodiments or example is used to realize the different structure of the application.In order to
Simplify disclosure herein, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, this application provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the application embodiment provides a kind of electronic device 100.Electronic device 100 includes main circuit board
10 and display module 20.
Illustratively, electronic device 100 can be various types of calculating that are mobile or portable and executing wireless communication
Any one of machine system equipment (only illustratively shows a kind of form) in Fig. 1.
Specifically, electronic device 100 can be mobile phone or smart phone (for example, being based on iPhone system (apple
Fruit system), it is based on the phone of Android system (Android system)), portable gaming device (such as iPhone (apple hand
Machine)), laptop computer, palm PC (personal digital assistant, PDA), portable Internet appliance, sound
Happy player and data storage device, other handheld devices and such as wrist-watch, In-Ear Headphones, pendant, headphone
Deng.
Electronic device 100 can also be other wearable devices (for example, such as electronic glasses, electronics clothes, electronic hand
Bracelet, electronics necklace, electronics tatoo, the headset equipment (head mount display, HMD) of electronic equipment or smartwatch).
Main circuit board 10 is integrated with the main circuit system of electronic device 100.Main circuit board 10 can provide junction with
It is engaged for components such as display module 20, processor, memories.
Fig. 2 and Fig. 3 are please referred to, display module 20 includes liquid crystal display 22, mould-group circuit-board 24, backlight 26, conduction
Element 28, driving chip 29 and bolster 30.
Referring to Figure 4 together, liquid crystal display 22 is formed with conducting route 2242.Specifically, liquid crystal display 22 includes
Liquid crystal layer 222 and the conductive layer 224 for being laid on liquid crystal layer 222, conductive layer 224 are formed with conducting route 2242 and driving circuit
(not shown), for driving circuit for driving liquid crystal layer 222 to show, mould-group circuit-board 24 connects conductive layer 224 and and driving circuit
Electrical connection.
In this way, realizing that driving liquid crystal layer 222 is shown.Specifically, driving circuit is used to drive the liquid crystal molecule of liquid crystal layer 222
Movement and arrangement so that liquid crystal display 22 show image.
It is appreciated that under normal circumstances, Liquid Crystal Molecules Alignment is Methodistic.Once applying electric field, liquid crystal to liquid crystal
The arrangement of molecule is then disturbed, and a part of liquid crystal can change the direction of propagation of light.Liquid crystal display 22 is usually provided with polarizing layer
228, polarizing layer 228 can stop the light of specific direction, so that liquid crystal display 22 generates the difference of shade, to show
Image.In the figure 2 example, the side that filter layer 226 deviates from liquid crystal layer 222 is arranged in polarizing layer 228.Certainly, polarizing layer 228
It can be set in filter layer 226 towards the side of liquid crystal layer 222.Alternatively, it is also possible to be set respectively in the opposite two sides of liquid crystal layer 222
Set polarizing layer 228.The quantity and specific location of polarizing layer 228 are not defined herein.
In the application embodiment, conductive layer 224 is made using transparent conductive metal, it in this way can be to avoid blocking backlight
The light that source 26 issues.
In the application embodiment, the quantity of conductive layer 224 is three layers, and first layer conductive layer 224 is the grid of row scanning
Pole cabling, material are molybdenum (Mo).Second layer conductive layer 224 is the cabling of vertical data transmission, and material is titanium (Ti)-aluminium (Al)-
The composite material of titanium (Ti).Third layer conductive layer 224 is the cabling of touching signals, and material is titanium (Ti)-aluminium (Al)-titanium (Ti)
Composite material.
Certainly, the material of second layer conductive layer 224 may be molybdenum (Mo)-aluminium (Al)-molybdenum (Mo) composite material.Third
The material of layer conductive layer 224 may be molybdenum (Mo)-aluminium (Al)-molybdenum (Mo) composite material.Herein not to the tool of conductive layer 224
Body quantity is defined, and is not also defined to the specific material of conductive layer 224.
Since the resistance of second layer conductive layer 224 is relatively small, it is suitble to do long cabling, it is preferable that conducting route 2242
It is arranged in second layer conductive layer 224.Certainly, conducting route 2242 also can be set in third layer conductive layer 224.
Term " first ", " second " in present embodiment are used for description purposes only, and are not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can
To explicitly or implicitly include one or more feature.In the description of the present application, the meaning of " plurality " is two
It is a or more than two, unless otherwise specifically defined.
Further, the edge 2241 of conductive layer 224 is arranged in conducting route 2242, and driving circuit is arranged in conduction
The intermediate position 2243 of layer 224.The intermediate position 2243 of conductive layer 224 is corresponding with liquid crystal layer 222, the edge part of conductive layer 224
Position 2241 protrudes from liquid crystal layer 222.In this way, avoiding driving circuit from interfering with conducting route 2242, to guarantee driving electricity
The normal work on road and conducting route 2242.
In addition, liquid crystal display 22 further includes the filter layer 226 for covering liquid crystal layer 222, filter layer 226 and conductive layer 224
It is located at the opposite two sides of liquid crystal layer 222.In this way, liquid crystal display 22 is made to show different colors.Specifically, Ke Yi
Filter layer 226 carries out the toning of each pixel by red, green, blue three primary colours, so that liquid crystal display 22 shows cromogram
Picture.
In the fabrication process, plasma enhanced chemical vapor deposition method (Plasma can first be passed through on the glass substrate
Enhanced Chemical Vapor Deposition, PECVD) semiconductor film or isolation film are formed, pass through sputter coating
Method forms metal film.Then use cleans the glass substrate that deposited film.Then, on the glass substrate that deposited film
Photoresist is coated, to form photoresist layer.Hereafter a period of time can be toasted, so that the solvent portion of photoresist is volatilized, thus
Increase the degree of adhesion of photoresist with the glass substrate that deposited film.It is then possible to pass through electrode pattern exposure mask with ultraviolet light
Version irradiation light photoresist surface, so that illuminated photoresist reacts, to carry out selective exposure to photoresist.Then,
The photoresist of exposed portion can be washed with developer, and the photoresist of dissolution is washed away.Then, heated baking is carried out,
It is attached to unexposed photoresist more firmly on the glass substrate that deposited film.Finally, can be with harsh liquid by nothing
The film etching of photoresist overlay falls, and leaves behind the film below photoresist.In this way, the film being covered by photoresist is saved
Get off, forms conductive layer 224.In the application embodiment, conductive layer 224 can be by thin film transistor (TFT) (Thin Film
Transistor, TFT) it is made.
It is appreciated that electrode pattern mask plate can be pre-designed according to conducting route 2242 and driving circuit, in this way,
Conductive layer 224 corresponding with the electrode pattern mask plate being pre-designed can then be produced.
Conductive layer 224 formed after, can coat on foring conductive layer 224 seal glue to form sealing glue frame,
And liquid crystal is injected in sealing glue frame, to form liquid crystal layer 222.It is appreciated that sealing glue frame can prevent liquid crystal from outflowing, from
And guarantee the normal work of liquid crystal display 22.
Finally, optical filter can be fitted on liquid crystal layer 222, to form filter layer 226.In the application embodiment
In, filter layer 226 is colored filter (Color filter, CF).Certainly, filter layer 226 may be to have filtering functions
Film layer.The concrete form of filter layer 226 is not defined herein.
Mould-group circuit-board 24 connects main circuit board 10.To engage display module 20 onto main circuit board 10, so that electric
Sub-device 100 is communicated and is powered to display module 20 by main circuit board 10.
In addition, mould-group circuit-board 24 connects liquid crystal display 22, conducting route 2242 is electrically connected with mould-group circuit-board 24.Back
Light source 26 is electrically connected with conducting route 2242, and is electrically connected by the way that route 2242 is connected with mould-group circuit-board 24.In this way, in liquid crystal
Display screen 22 forms conducting route 2242, and connects backlight 26 and mould-group circuit-board 24 by conducting route 2242, avoids volume
Outer setting switching circuit board connects backlight 26 and mould-group circuit-board 24, simple process, simple for structure, can save space simultaneously
Reduce cost.
Specifically, it can will be connected by anisotropy conductiving glue (Anisotropic Conductive Film, ACF)
Route 2242 and the pin of mould-group circuit-board 24 link together correspondingly.
In this application, it should be noted that conducting route 2242 is electrically connected with mould-group circuit-board 24 can be, conductive line
Road 2242 is connected directly with mould-group circuit-board 24, and it is indirect by intermediary with mould-group circuit-board 24 that route 2242 can also be connected
It is connected.For the ordinary skill in the art, the tool of above-mentioned term in this application can be understood as the case may be
Body meaning.
Specifically, in the application embodiment, the phase of electronic device 100 is arranged in backlight 26 and mould-group circuit-board 24
To two sides.If connecting backlight 26 and mould-group circuit-board 24 in the way of switching circuit board additionally is arranged by the relevant technologies,
Switching circuit board can pass through the major part of electronic device 100, thus electronic device 100 needs to reserve more space to switching
Circuit board carries out keeping away position.
And the conducting route 2242 for being formed in liquid crystal display 22 is utilized to connect backlight 26 and mould-group circuit-board 24, it can be with
Avoid that switching circuit board is additionally arranged, electronic device 100 without reserving more space, can also reduce switching circuit board at
This.
Furthermore it is possible to which manufacture conducting route 2242, simple process are easy to accomplish together when manufacturing driving circuit.Moreover,
Since conducting route 2242 is formed in liquid crystal display 22, liquid crystal display 22 can increase the intensity of conducting route 2242, drop
The risk of low conducting route 2242 fracture, damage, is conducive to the reliability for improving conducting route 2242.
Backlight 26 is arranged in 22 side of liquid crystal display.Backlight 26 includes that backlight circuit board 262 and setting are being carried on the back
The illumination region 264 of light source circuit board 262.Illumination region 264 is, for example, LED light source, and illumination region 264 can also be in band-like.Illumination region
264 quantity can be the particular numbers such as 1 or 2, not be restricted herein to the quantity of illumination region 264.
In the application embodiment, illumination region 264 is fixed on backlight circuit board 262 by adhesive tape 261.
Specifically, adhesive tape 261 can be lamp bar glue.Lamp bar glue has excellent flexibility and scratch-proofness, and electric property is good
And it is good with substrate adhesive bonding, using the fixed illumination region 264 of lamp bar glue, it is ensured that the reliability of illumination region 264.
Conducting element 28 is arranged in liquid crystal display 22 and connect with backlight 26 and conducting route 2242.Specifically, it leads
Electric device 28 is connect with backlight circuit board 262 and conducting route 2242.In this way, can simply and easily realize backlight 26 with
The connection of route 2242 is connected.
It is appreciated that conducting element 28 is arranged in liquid crystal display 22 to connect and be arranged in liquid crystal display 22 opposite two
Side back light source 26 and conducting route 2242, so that backlight circuit board 262 is not necessarily to stretch out from the side of liquid crystal display 22 and curved
Fold to 22 other side of liquid crystal display.It, can in this way while avoiding the bending part of backlight circuit board 262 from fractureing, scratch
To reduce the frame of electronic device 100, be conducive to cooperate the trend shielded comprehensively.
In the application embodiment, conducting element 28 includes conductive silver paste.In this way, conduction can be realized simply and easily
Electrical connection of the element 28 to backlight 26 and conducting route 2242.Certainly, conducting element 28 can also by conducting resinl, conductive paint,
Conductive metal or other materials are made.The concrete form of conducting element 28 is not defined herein.
Fig. 3 and Fig. 4 are please referred to, liquid crystal display 22 offers first through hole 2246 corresponding with conducting route 2242, leads
Electric device 28 is arranged in first through hole 2246.Specifically, conducting element 28 is arranged in first through hole 2246.
One end of conducting route 2242 is formed with pad 2245, and pad 2245 is formed with the second through-hole 2247, the second through-hole
2247 are connected to first through hole 2246, and conducting element 28 is arranged in first through hole 2246 and the second through-hole 2247.
Conducting element 28 is arranged in liquid crystal display 22 in this way, can simply and easily realize.Specifically, first through hole
2246 shape can be circle, ellipse, rectangle, triangle or other shapes.The shape of second through-hole 2247 can be circle
Shape, ellipse, rectangle, triangle or other shapes.The shape of first through hole 2246 and the shape of the second through-hole 2247 can phases
Together, it can also be different.The concrete shape of first through hole 2246 and the second through-hole 2247 is not defined herein.
Referring to Fig. 6, laser or Computerized digital control system (Computer can be used during manufacture
Numerical Control, CNC) mode of grinding punches in pad 2245 and liquid crystal display 22, thus in liquid crystal display
22 form first through hole 2246, form the second through-hole 2247 in pad 2245.It is then possible to logical in first through hole 2246 and second
2247 midpoint of hole sets conductive silver paste.Finally, 262 hot pressing of backlight circuit board can be tied to 22 lower surface of liquid crystal display,
So that pad 2245 and backlight circuit board 262 are connected by conducting element 28, so that backlight 26 and conducting route
2242 realize electric connection.
Optionally, referring to Fig. 7, the edge 221 of liquid crystal display 22 offers opening 223, conducting route 2242 extends
To being open at 223, conducting element 28 is arranged in opening 223 and connect with conducting route 2242.In this way, realizing that conducting element 28 is worn
It is connect set on liquid crystal display 22 and with backlight 26 and conducting route 2242.
In the application embodiment, backlight circuit board 262 is flexible circuit board.Flexible circuit board Distribution density height,
It is light-weight, thickness is thin, bending is good, using flexible circuit board as backlight circuit board 262, display module 20 can be mitigated
Weight and volume.
In the example of fig. 4, backlight 26 includes multiple LED light, and multiple LED light can connect to form three rows.Pad
2245 quantity is 4, and one of pad 2245 is anode, remaining three pad 2245 is cathode.Three row's LED light are equal
It connect with the anode of pad 2245, in addition, three row's LED light are connect with three cathode respectively, so may be implemented to three row's LED light
Power supply.
Certainly, pad 2245 or other quantity, are not defined the quantity of pad 2245 herein.
The pin that the other end of conducting route 2242 can be reserved with mould-group circuit-board 24 is connect.It is possible to further logical
Cross route 2242 will be connected in anisotropy conductiving glue (Anisotropic Conductive Film, ACF) the other end and mould group
The pin of circuit board 24 links together correspondingly.In this way, no setting is required the pad of mould-group circuit-board 24, can be mould group electricity
The cabling of road plate 24 provides bigger free space.
The setting of driving chip 29 is in mould-group circuit-board 24, and driving chip 29 is for driving liquid crystal display 22 to work.In this way,
Realize the driving to liquid crystal display 22.
Specifically, driving chip 29 can integrate the components such as resistance, adjuster, comparator and power transistor, pass through control
Driving current processed drives liquid crystal display 22.Further, the driving method of driving chip 29 can be static drive, can also
Think dynamic driving.The specific driving method of liquid crystal display 22 is not defined herein.
Driving chip 29 can be bundled on mould-group circuit-board 24 by conductive film 291, and conductive film 291 can be with mould group
Circuit board 24 is bent, to effectively reduce the lower frame of display module 20.Further, driving chip 29 can pass through COF
(Chip On Film) technique is bundled on mould-group circuit-board 24.
Bolster 30 is arranged between conductive layer 224 and backlight circuit board 262, and bolster 30 can be in electronic device
100 by external impact when protect electronic device 100, avoid electronic device 100 damage.Specifically, bolster 30 can be by steeping
Cotton, rubber or other materials with pooling feature are made.
Also referring to Fig. 8, display module 20 can also include framework 11, lustre adding layer 12, diffusion barrier 14,16 and of light guide plate
Reflector plate 18.
Framework 11 surrounds lustre adding layer 12, diffusion barrier 14, light guide plate 16 and reflector plate 18, lustre adding layer 12, diffusion barrier 14, leaded light
Plate 16 and reflector plate 18 are fixedly connected with framework 11.
Specifically, framework 11 can be glue frame.More specifically, framework 11 can be lighttight glue frame.In actual life
During production, first lustre adding layer 12, diffusion barrier 14, light guide plate 16 and reflector plate 18 sequentially can be stacked in a mold, then existed
Dispensing between lustre adding layer 12, diffusion barrier 14, light guide plate 16 and reflector plate 18 and the mold that heap is folded, finally by adhesive curing to be formed
Glue frame.In addition, framework 11 is also possible to iron frame.
Lustre adding layer 12 includes add lustre to area 122 and the first transparent area 124, and the light transmittance of the first transparent area 124 is greater than area of adding lustre to
122 light transmittance, the first transparent area 124 are configured as and are arranged in the function element that reflector plate 18 deviates from 16 side of light guide plate
300 alignment, so that the light that function element 300 issues is emitted to outside display module 20 by the first transparent area 124, and/or with
Function element 300 is set to receive the light outer incident and by the first transparent area 124 from display module 20.It is appreciated that first is saturating
Light area 124 is aligned with function element 300, can be orthographic projection covering function device of first transparent area 124 on light guide plate 16
300 orthographic projection on light guide plate 16.
In this way, the local transparent rate of display module 20 is improved using the first transparent area 124, so that function element 300 can
With by the first transparent area 124 to the light for emitting beam and/or receiving outside display module 20 outside display module 20, thus
Assurance function device 300 works normally.
Specifically, function element 300 includes in range sensor, camera module, light sensor and fingerprint sensor
It is at least one.
In one example, function element 300 includes range sensor；In another example, function element 300 includes
Range sensor and camera module；In another example, function element 300 includes range sensor, camera module, light sense
Answer device and fingerprint sensor.
When function element 300 is range sensor, function element 300 is by the first transparent area 124 to outside display module 20
It emits beam and passes through the first transparent area 124 and receive the reflected light of object, so as to detection electronic installation 100 and object
The distance of body.
When function element 300 is light sensor, function element 300 receives display module 20 by the first transparent area 124
Outer light, to detect ambient brightness.
When function element 300 is camera module, function element 300 is received outside display module 20 by the first transparent area 124
Light, to obtain external image.
When function element 300 is fingerprint sensor, function element 300 is by the first transparent area 124 to outside display module 20
It emits beam, and the reflected light of finger is received by the first transparent area 124, so as to detect finger print information.
It is appreciated that function element 300 quantity be it is multiple when, the quantity of corresponding first transparent area 124 be also it is multiple,
And multiple first transparent areas 124 are corresponded with multiple function elements 300.
In addition, please referring to Fig. 9, Figure 10 and Figure 11, the first transparent area 124 can be in any position of lustre adding layer 12, herein
The position of first transparent area 124 is not defined.
In one example, the first transparent area 124 is in the upper right corner of lustre adding layer 12, as shown in Figure 9；In another example
In, the first transparent area 124 is in the lower left corner of lustre adding layer 12, as shown in Figure 10；In another example, the first transparent area 124
Center is overlapped with the center of lustre adding layer 12, as shown in figure 11.
In addition, the shape of the first transparent area 124 can be circle, ellipse, square, rectangle, trapezoidal, irregular polygon
The arbitrary shapes such as shape are not defined the shape of the first transparent area 124 herein.
In addition, please referring to Figure 12 and Figure 13, it also may include more that lustre adding layer 12, which may include first transparent area 124,
A first transparent area 124 is not defined the quantity of the first transparent area 124 herein.
In the example of Figure 11, lustre adding layer 12 includes 1 transparent area 124；In the example in figure 12, lustre adding layer 12 includes 3
A transparent area 124；In the example of Figure 13, lustre adding layer 12 includes 5 transparent areas 124.
Figure 14, Figure 15 and Figure 16 are please referred to, lustre adding layer 12 may include the first bright enhancement film 126 and be stacked in the first increasing
Light film 126 towards 14 side of diffusion barrier the second bright enhancement film 128, in the first bright enhancement film 126 and the second bright enhancement film 128 at least one
A includes the first transparent area 124.
It note that " at least one of the first bright enhancement film 126 and the second bright enhancement film 128 include the first transparent area herein
124 " include three kinds of situations:
First bright enhancement film 126 includes the first transparent area 124, as shown in figure 14；
Second bright enhancement film 128 includes the first transparent area 124, as shown in figure 15；
First bright enhancement film 126 includes the first transparent area 124, and the second bright enhancement film 128 also includes the first transparent area 124,
And first the first transparent area 124 on bright enhancement film 126 is aligned with the first transparent area 124 on the second bright enhancement film 128, such as Figure 16 institute
Show.
Figure 17 is please referred to, area 122 of adding lustre to could be formed with through-hole 1222, be filled out in through-hole 1222 equipped with translucent material to be formed
The light transmittance of first transparent area 124, translucent material is greater than 90%；Or add lustre to area 122 and the first transparent area 124 is integrally formed knot
Structure.In this way, the first transparent area 124 is easy to form, and the light transmittance of the first transparent area 124 is made to be greater than the saturating of area 122 of adding lustre to
Light rate.
It should be pointed out that the light transmittance of translucent material is greater than the light transmittance in area 122 of adding lustre to, translucent material is for example, organic
Glass (Polymethyl methacrylate, PMMA), the material in area 122 of adding lustre to is, for example, polyethylene terephthalate
(Polyethylene Terephthalate, PET).
Figure 18 is please referred to, diffusion barrier 14 includes light diffusion region 142 and the second transparent area 144, the light transmission of the second transparent area 144
Rate is greater than the light transmittance of light diffusion region 142, and light diffusion region 142 is aligned with area 122 of adding lustre to, the second transparent area 144 and the first light transmission
Area 124 is aligned.
In this way, the second transparent area 144 can decrease or even eliminate the light by the first transparent area 124 in diffusion barrier 14
Loss, to further increase the transmitance of the light by the first transparent area 124.
Similarly, light diffusion region 142 also could be formed with through-hole, be filled out in through-hole equipped with translucent material to form the second light transmission
The light transmittance in area 144, translucent material is greater than 90%；Or light diffusion region 142 is an integral molding structure with the second transparent area 144.?
This is repeated no more.
Figure 19 and Figure 20 are please referred to, light guide plate 16 is formed with the light guiding points 162 being arranged in array, and light guide plate 16 includes first
Light guide section 164 and the second light guide section 166, the first light guide section 164 are aligned with area 122 of adding lustre to, the second light guide section 166 and the first light transmission
Area 124 is aligned, and the light guiding points 162 positioned at the first light guide section 164 are greater than positioned at the density of the light guiding points 162 of the second light guide section 166
Density.In this way, the set-up mode of light guiding points 162 can compensate due to the light transmittance of the first transparent area 124 is higher and generate
Vision difference.
It is appreciated that area 122 is higher even if the light transmittance ratio of the first transparent area 124 adds lustre to, but since transparent area 124 lacks
Reduce photo structure, and user is easy to think that the first transparent area 124 is more darker than area 122 of adding lustre in observation, so that user experience is poor.
And the density of the light guiding points 162 of the second light guide section 166 is greater than the density of the light guiding points 162 positioned at the first light guide section 164, in this way may be used
It measures to increase display module 20 and the first transparent area to increase by the second light guide section 166 in the guide-lighting of 16 thickness direction of light guide plate
The amount of light of 124 corresponding regions, and then can compensate the dimmed of the first transparent area 124 advantageously reduces user visually
It is uncomfortable.
Specifically, light guiding points 162 can be groove, protrusion or through-hole.The section of light guiding points 162 can be triangle, arc
Shape, rectangle, irregular polygon etc..The shape of light guiding points 162 is not defined herein.
In addition, the arrangement of light guiding points 162 can be rule, it is also possible to irregular；Light guide plate 16 may include one
The light guiding points 162 of kind shape, also may include the light guiding points 162 of various shapes.Herein also not to the arrangement mode of light guiding points 162
It is defined.
In the example of fig. 20, the upper surface of light guide plate 16 is formed with multiple light guiding points 162.In the example of Figure 21, lead
The upper and lower surfaces of tabula rasa 16 are each formed with multiple light guiding points 162.
Figure 20 is please referred to, on direction A of first light guide section 164 towards the second light guide section 166, is located at the first light guide section
The density of 164 light guiding points 162 is gradually increased.Alternatively, in the second light guide section 166 towards the centre of surface of diffusion barrier 14 to first
On the direction of light guide section 164, the density of the light guiding points 162 of the second light guide section 166 is gradually reduced.
In this way, first light guide section 164 gradually brightens on direction A of first light guide section 164 towards the second light guide section 166,
Or in the second light guide section 166 on the direction of the first light guide section 164, the second light guide section 166 is gradually dimmed, so that it is guaranteed that
The smooth excessiveness of 162 density of light guiding points, avoids light guide plate 16 at the boundary line position of one light guide section 164 and the second light guide section 166
The backlight come is transferred out to be mutated at the boundary line position of the first light guide section 164 and the second light guide section 166, so that with
Family is visually more comfortable, and then improves user experience.For example, display module 20 work display when, with display module 20 with
Centered on the corresponding region of first transparent area 124, display module 20 becomes to the brightness smooth transition shown from center to surrounding
Change, to reduce the display difference of display module 20.
In summary, the application embodiment provides a kind of display module 20.Display module 20 includes liquid crystal display
22, mould-group circuit-board 24, backlight 26 and conducting element 28, liquid crystal display 22 are formed with conducting route 2242.Modular circuit
Plate 24 connects liquid crystal display 22, and conducting route 2242 is electrically connected with mould-group circuit-board 24.Backlight 26 is arranged in liquid crystal display
Shield 22 sides.Conducting element 28 is arranged in liquid crystal display 22 and connect with backlight 26 and conducting route 2242.
The display module 20 of the application embodiment forms conducting route 2242, and backlight 26 in liquid crystal display 22
Liquid crystal display 22 is arranged in by conducting element 28 to connect with conducting route 2242, is thus connected to mould-group circuit-board 24.This
Sample can simply and easily realize backlight 26 and the connection of route 2242 is connected, and can also avoid that switching circuit board additionally is arranged
Connect backlight 26 and mould-group circuit-board 24, it is simple process, simple for structure, space can be saved and reduce cost.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the application.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While there has been shown and described that presently filed embodiment, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle and objective of the application and become
Type, scope of the present application are defined by the claims and their equivalents.
Claims (13)
1. a kind of display module characterized by comprising
Liquid crystal display, the liquid crystal display are formed with conducting route；
The mould-group circuit-board of the liquid crystal display is connected, the conducting route is electrically connected with the mould-group circuit-board；
The backlight of the liquid crystal display side is set；With
Conducting element, the conducting element are arranged in the liquid crystal display and connect with the backlight and the conducting route
It connects.
2. display module according to claim 1, which is characterized in that the conducting element includes conductive silver paste.
3. display module according to claim 1, which is characterized in that the liquid crystal display offers and the conductive line
The corresponding first through hole in road, the conducting element are arranged in the first through hole.
4. display module according to claim 3, which is characterized in that the backlight includes backlight circuit board and setting
In the illumination region of the backlight circuit board, the conducting element be arranged in the first through hole and with the backlight circuit board
With the conducting connection.
5. display module according to claim 4, which is characterized in that one end of the conducting route is formed with pad, institute
It states pad and is formed with the second through-hole, second through-hole is connected to the first through hole, and the conducting element is arranged in described
One through-hole and second through-hole.
6. display module according to claim 4, which is characterized in that the backlight circuit board is flexible circuit board.
7. display module according to claim 1, which is characterized in that the edge of the liquid crystal display has opening,
The conducting route extends to the opening, the conducting element be arranged in the opening and with the conducting connection.
8. display module according to claim 1, which is characterized in that the liquid crystal display includes liquid crystal layer and is laid on
The conductive layer of the liquid crystal layer, the conductive layer are formed with the conducting route and driving circuit, and the driving circuit is for driving
It moves the liquid crystal layer to show, the mould-group circuit-board connects the conductive layer and is electrically connected with the driving circuit.
9. display module according to claim 8, which is characterized in that the driving circuit is arranged in the conductive layer
Between position, the edge of the conductive layer is arranged in the conducting route.
10. display module according to claim 9, which is characterized in that the intermediate position of the conductive layer and the liquid crystal
Layer is corresponding, and the edge of the conductive layer protrudes from the liquid crystal layer.
11. display module according to claim 8, which is characterized in that the liquid crystal display further includes covering the liquid
The filter layer of crystal layer, the filter layer and the conductive layer are located at the opposite two sides of the liquid crystal layer.
12. display module according to claim 1, which is characterized in that the display module includes being arranged in the mould group
The driving chip of circuit board, the driving chip is for driving the liquid crystal display to work.
13. a kind of electronic device characterized by comprising
Main circuit board；With
The described in any item display modules of claim 1-12, the mould-group circuit-board connect the main circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367123.1A CN110174786B (en) | 2019-05-05 | 2019-05-05 | Display module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367123.1A CN110174786B (en) | 2019-05-05 | 2019-05-05 | Display module and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110174786A true CN110174786A (en) | 2019-08-27 |
| CN110174786B CN110174786B (en) | 2022-03-22 |
Family
ID=67690539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910367123.1A Active CN110174786B (en) | 2019-05-05 | 2019-05-05 | Display module and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110174786B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111095271A (en) * | 2019-09-20 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device, display screen and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200625625A (en) * | 2004-10-21 | 2006-07-16 | Seiko Epson Corp | Thin film transistor, electro-optical device and electronic apparatus |
| JP2008032994A (en) * | 2006-07-28 | 2008-02-14 | Kyocera Corp | Display panel and display device |
| JP2008275894A (en) * | 2007-04-27 | 2008-11-13 | Sharp Corp | Display panel and display device |
| CN105118453A (en) * | 2015-07-03 | 2015-12-02 | 友达光电股份有限公司 | Display and method for manufacturing display |
| TWI581036B (en) * | 2016-03-22 | 2017-05-01 | 群創光電股份有限公司 | Display module |
| CN207369393U (en) * | 2017-10-13 | 2018-05-15 | 信利半导体有限公司 | The wiring board and backlight of a kind of backlight |
| WO2018103195A1 (en) * | 2016-12-09 | 2018-06-14 | 上海箩箕技术有限公司 | Display module and usage method thereof |
| CN207764403U (en) * | 2018-01-03 | 2018-08-24 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display equipment |
-
2019
- 2019-05-05 CN CN201910367123.1A patent/CN110174786B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200625625A (en) * | 2004-10-21 | 2006-07-16 | Seiko Epson Corp | Thin film transistor, electro-optical device and electronic apparatus |
| JP2008032994A (en) * | 2006-07-28 | 2008-02-14 | Kyocera Corp | Display panel and display device |
| JP2008275894A (en) * | 2007-04-27 | 2008-11-13 | Sharp Corp | Display panel and display device |
| CN105118453A (en) * | 2015-07-03 | 2015-12-02 | 友达光电股份有限公司 | Display and method for manufacturing display |
| TWI581036B (en) * | 2016-03-22 | 2017-05-01 | 群創光電股份有限公司 | Display module |
| WO2018103195A1 (en) * | 2016-12-09 | 2018-06-14 | 上海箩箕技术有限公司 | Display module and usage method thereof |
| CN207369393U (en) * | 2017-10-13 | 2018-05-15 | 信利半导体有限公司 | The wiring board and backlight of a kind of backlight |
| CN207764403U (en) * | 2018-01-03 | 2018-08-24 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111095271A (en) * | 2019-09-20 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device, display screen and electronic equipment |
| CN111095271B (en) * | 2019-09-20 | 2023-09-12 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device, display screen and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110174786B (en) | 2022-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11187850B2 (en) | Electronic device, display assembly thereof, and backlight module thereof | |
| CN109683399A (en) | Display module and display device | |
| US20090079894A1 (en) | Electro-optical device and electronic apparatus | |
| CN108710241A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN103970336A (en) | Touch display panel and touch display device | |
| CN113495384B (en) | Direct type backlight module, display device and manufacturing method of circuit board | |
| CN108761923A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN109212808A (en) | The production method of liquid crystal display panel, display device and liquid crystal display panel | |
| CN108761922A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN104063084A (en) | Touch Display Apparatus | |
| CN110474998A (en) | Terminal device | |
| CN114326210A (en) | Backlight module and display device | |
| CN110007497A (en) | Display module and electronic device | |
| CN111066029B (en) | Fingerprint identification subassembly, optical fingerprint display module assembly and electron device | |
| CN110456560A (en) | A kind of display panel and its display device | |
| CN204101851U (en) | Display and electronic equipment | |
| CN108776412A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN208421473U (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN110174786A (en) | Display module and electronic device | |
| CN107153298A (en) | Planar light source device, display device and electronic equipment | |
| CN1591112B (en) | Substrate for electro-optical device and manufacturing method thereof, electro-optical device and manufacturing method thereof | |
| CN108287437A (en) | A kind of backlight module and electronic device | |
| CN208421472U (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN108302386A (en) | Electronic device and its display module, backlight module | |
| CN208421475U (en) | Backlight module, liquid crystal display die set and electronic 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 |