CN111290657B - Display device and electronic apparatus - Google Patents
Display device and electronic apparatus Download PDFInfo
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- CN111290657B CN111290657B CN202010046760.1A CN202010046760A CN111290657B CN 111290657 B CN111290657 B CN 111290657B CN 202010046760 A CN202010046760 A CN 202010046760A CN 111290657 B CN111290657 B CN 111290657B
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- control film
- optical control
- display device
- optical
- display panel
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G02F1/13338—Input devices, e.g. touch 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
- G02F1/133504—Diffusing, scattering, diffracting elements
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to a display device and an electronic apparatus. This display device includes display panel, optical control film, optical cement layer and adhesive tape, the optical cement layer is located display panel with between the optical control film, the adhesive tape is located display panel is last and is followed the edge extension setting of optical control film. Above-mentioned display device sets up the adhesive tape through the edge at optical control film, can inject the deflection when optical control film receives cold and hot impact, effectively avoids optical control film to break off.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and an electronic apparatus.
Background
An optical Control Film (LCF) is generally applied to a display device for filtering out Light with a large angle to meet the requirement of peep prevention. The optical control film comprises a louver structure and an upper base material and a lower base material which are coated on the louver structure. The base material of the optical control film is easily affected by temperature and humidity to generate shrinkage deformation, and particularly, when the base material is subjected to cold and hot impact, the shrinkage rates of the base material along the longitudinal direction and the transverse direction are different, so that the optical control film is easily broken after the cold and hot impact.
Disclosure of Invention
In view of this, it is necessary to provide a display device and an electronic apparatus, which are directed to the problem that an optical control film is likely to break after being subjected to thermal shock.
The utility model provides a display device, includes display panel, optical control film, optical cement layer and adhesive tape, the optical cement layer is located display panel with between the optical control film, the adhesive tape is located display panel is last and is followed optical control film's edge extends the setting.
Above-mentioned display device sets up the adhesive tape through the edge at optical control film, can inject the deflection when optical control film receives cold and hot impact, effectively avoids optical control film to break off.
In one embodiment, the optical control film comprises a plurality of gratings arranged at intervals, and the projection of the gratings on the upper surface of the display panel is perpendicular to the adhesive tape.
In one embodiment, the number of the adhesive tapes is 2, and two adhesive tapes extend along two opposite side edges of the optical control film respectively.
In one embodiment, the thickness of the optical adhesive layer is a, the thickness of the optical control film is b, and the thickness of the adhesive tape is h, wherein a < h < a + b.
In one embodiment, the width m of the adhesive tape is ≧ 0.5 mm.
In one embodiment, the adhesive tape comprises a plurality of adhesive blocks arranged at intervals.
In one embodiment, the display panel comprises a touch panel.
The utility model provides a display device, includes display panel, optical cement structure and optical control film, the optical cement structure is located display panel with between the optical control film, the optical cement structure includes main part and two at least shielding parts, two of them the shielding part is located respectively the relative both sides of main part, and with the main part encloses and closes and form the accommodation space, the optical control film is located in the accommodation space.
In one embodiment, the number of the blocking portions is 2, the optical control film comprises a plurality of gratings which are arranged at intervals, and the projection of the gratings on the upper surface of the display panel is perpendicular to the blocking portions.
An electronic device comprises the display device.
Drawings
FIG. 1 is a schematic diagram of a display device according to an embodiment;
FIG. 2 is a cross-sectional view of the display device shown in FIG. 1 taken along the line A-A;
FIG. 3 is a cross-sectional view of the display device shown in FIG. 1 taken along the direction B-B;
fig. 4 is a cross-sectional view of a display device in another embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The optical control film comprises a first protective layer, a grating layer and a second protective layer which are sequentially stacked, the grating layer comprises a plurality of gratings which are arranged at intervals, and a plurality of gratings form a shutter structure and can shield light exceeding a visual angle range. The optical control film can be applied to various display devices, and a user can observe information presented on the display device when the user is positioned right in front of the optical control film, namely within a visual angle range. And other personnel are out of the visual angle range and cannot observe related information, so that the aim of peep prevention is fulfilled. The display device with the optical control film can be used as an on-vehicle display screen, the display device is set to be at an angle convenient for a driver to observe, the front windshield of a vehicle is positioned outside a visible angle range, and the phenomenon that the pattern of the display device forms a reverse image on the windshield to influence the sight of the driver is avoided. The display device can also be applied to automatic teller machines or personal computers and the like, so that user information is prevented from being leaked.
The first protective layer and the second protective layer are usually made of Polycarbonate (PC), and when the optical control film is subjected to cold and heat shock, the first protective layer and the second protective layer are easily subjected to shrinkage deformation and have different shrinkage rates in the longitudinal direction and the transverse direction, so that the optical control film may be broken after the cold and heat shock. The display device to which the optical control film is attached is inevitably affected by the ambient temperature, and if the optical control film is broken due to thermal shock, the normal use of the display device is affected, and the replacement of a new optical control film will increase the maintenance cost of the device.
To solve the above problem, the present invention provides a display device 100. Referring to fig. 1, a display device 100 includes a display panel 10, an optical control film 20, an optical adhesive layer 30, and an adhesive tape 40. The optical Adhesive layer 30 is located between the display panel 10 and the optical control film 20, the optical Adhesive layer 30 is used to adhere the optical control film 20 to the display panel 10, and simultaneously prevent air or water vapor from being mixed between the display panel 10 and the optical control film 20, and a material of the optical Adhesive layer 30 may be a transparent optical Adhesive (OCA). The adhesive tape 40 is disposed on the display panel 10 and extends along an edge of the optical control film 20. According to the display device 100, the adhesive tape 40 is arranged on the edge of the optical control film 20, so that the deformation of the optical control film 20 caused by cold and hot impacts can be limited, and the optical control film 20 is effectively prevented from being broken.
In particular, the adhesive strips 40 may be disposed continuously or intermittently around the periphery of the optical control film 20. In an embodiment, the adhesive tape 40 includes a plurality of adhesive blocks arranged at intervals, that is, the adhesive tape 40 is arranged intermittently, so that the amount of adhesive material can be saved.
In one embodiment, the display panel 10 has a touch function, and the display panel 10 is a touch panel 10'. The touch panel 10' includes a display module 11 and a touch module 12 stacked together. In some embodiments, the Display module 11 may adopt an LCD (Liquid Crystal Display) screen for displaying the picture information, and the LCD screen may be a TFT (Thin Film Transistor) screen, an IPS (In-Plane Switching) screen, or an SLCD (split Liquid Crystal Display) screen. In other embodiments, the display module 11 may employ an OLED (Organic Light-Emitting Diode) panel for displaying the image information. The type of the display module 11 will not be described in detail herein.
The touch module 12 includes a touch sensing area and a wiring area located at the periphery of the touch sensing area, a first sensing electrode extending along a longitudinal direction and a second sensing electrode extending along a transverse direction are disposed in the touch sensing area, and the first sensing electrode and the second sensing electrode are insulated from each other. The first sensing electrode and the second sensing electrode may be made of Indium Tin Oxide (ITO) by a yellow light process, and may specifically be laid in a Single-layer ITO (i.e., the first sensing electrode and the second sensing electrode are located on the same side of the substrate) or a Double-layer ITO (i.e., the first sensing electrode and the second sensing electrode are located on both sides of the substrate) manner.
In other embodiments, the display panel 10 has no touch function, for example, the display panel 10 may be a conventional liquid crystal display.
Referring to fig. 3, the optical control film 20 includes a plurality of gratings 22 arranged at intervals, and a projection of the gratings 22 on the upper surface of the display panel 10 is perpendicular to the stripe 40. When optical control film 20 receives cold and hot impact, fracture easily takes place along grating 22 length direction, sets up adhesive tape 40 through the tip at grating 22, effectively prescribes a limit to optical control film 20's first protective layer 21 and second protective layer 23 at the deflection of perpendicular to grating 22 length direction, increases optical control film 20's bulk strength to avoid optical control film 20 to break when receiving cold and hot impact.
In one embodiment, the number of the adhesive strips 40 is 2, and two adhesive strips 40 are respectively disposed along two opposite side edges of the optical control film 20. Through set up adhesive tape 40 respectively at the both ends of grating, the first protective layer 21 of effectively injecing optical control film 20 and the deformation of second protective layer 23 in the perpendicular to grating length direction increase optical control film 20's bulk strength to avoid optical control film 20 to break off when receiving cold and hot impact.
Referring to fig. 2, the thickness of the optical adhesive layer 30 is a, the thickness of the optical control film 20 is b, and the thickness of the adhesive tape 40 is h, where a < h < a + b, so as to ensure that one end of the adhesive tape 40 is adhered to the display panel 10 and the other end is adhered to the optical control film 20, thereby limiting the deformation of the optical control film 20 in the direction perpendicular to the length direction of the grating. The width m of the adhesive tape 40 is ≧ 0.5mm, so as to ensure the bonding strength of the adhesive tape 40. In an embodiment, the adhesive tape 40 is UV adhesive, and the adhesive can be dispensed around the optical control film 20 by a dispenser, and then UV curing is performed, so that the width and thickness of the adhesive tape 40 can be effectively controlled by controlling the flow rate and speed parameters of the dispenser.
The manufacturing method of the display device 100 includes the steps of:
s100: a display panel 10 is provided and an optical glue is coated on the display panel 10 to adhere the optical control film 20 to the display panel 10.
S200: and curing the optical cement. In particular, the optical glue may be an optically clear glue, which may be cured by heat or UV.
S300: dispensing is performed on the display panel 10 along the edges of the optical control film 20. Dispensing can be performed around the optical control film 20 by a dispenser, and then UV curing is performed to form the adhesive tape 40. The width and thickness of the adhesive tape 40 can be effectively controlled by controlling the flow and speed parameters of the dispenser.
In some embodiments, the incoming material of the optical control film 20 includes the optical adhesive layer 30, and thus, the optical control film 20 may be directly adhered to the display panel 10, that is, the step S100 of coating the optical adhesive on the display panel 10 may be omitted.
An electronic device comprises a display device 100, wherein the adhesive tape 40 is arranged at the edge of an optical control film 20 of the display device 100, so that the deformation of the optical control film 20 when the optical control film is subjected to cold and hot shock can be limited, and the optical control film 20 is effectively prevented from being broken.
In another embodiment, referring to fig. 4, the display device 200 includes a display panel 210, an optical cement structure 220 and an optical control film 230, the optical cement structure 220 is disposed between the display panel 210 and the optical control film 230, the optical cement structure 220 includes a main body portion 221 and at least two shielding portions 222, the two shielding portions 222 are respectively disposed on two opposite sides of the main body portion 221 and enclose with the main body portion 221 to form an accommodating space, and the optical control film 230 is located in the accommodating space. The main body 221 of the optical cement structure 220 is used for adhering the optical control film 230 to the display panel 210, and the shielding portion 222 limits the two ends of the optical control film 230, so that the deformation of the optical control film 230 caused by cold and heat shock can be limited, and the optical control film 230 is effectively prevented from being broken.
Specifically, the number of the shielding portions 222 is 2, 2 shielding portions 222 are disposed on two opposite sides of the optical control film 220, the optical control film 230 includes a plurality of gratings arranged at intervals, and a projection of the gratings on the upper surface of the display panel 210 is perpendicular to the shielding portions 222. When receiving cold and hot impact, optical control film 230 breaks easily along grating length direction, sets up shielding portion 222 through the tip at the grating, effectively prescribes a limit to optical control film 230 at the deflection of perpendicular to grating length direction, increases optical control film 230's bulk strength to avoid optical control film 230 to break when receiving cold and hot impact.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The display device is characterized by comprising a display panel, an optical control film, an optical adhesive layer and an adhesive tape, wherein the optical adhesive layer is positioned between the display panel and the optical control film;
the thickness of the optical adhesive layer is a, the thickness of the adhesive tape is h, and a is smaller than h.
2. The display device according to claim 1, wherein the optical control film comprises a plurality of spaced gratings, and a projection of the gratings on the upper surface of the display panel is perpendicular to the adhesive strips.
3. The display device according to claim 1, wherein the number of the adhesive strips is 2, and two adhesive strips are respectively disposed to extend along two opposite side edges of the optical control film.
4. The display device of claim 1, wherein the optical control film has a thickness of b, h < a + b.
5. The display device according to claim 1, wherein the adhesive tape has a width m ≧ 0.5 mm.
6. The display device according to claim 1, wherein the adhesive strip comprises a plurality of spaced adhesive blocks.
7. The display device according to claim 1, wherein the display panel comprises a touch panel.
8. The utility model provides a display device, its characterized in that, includes display panel, optical cement structure and optical control film, the optical cement structure is located display panel with between the optical control film, the optical cement structure includes main part and two at least occlusion parts, two of them occlusion part locates the relative both sides of main part, and with the main part encloses and closes and form the accommodation space, the optical control film is located in the accommodation space.
9. The display device according to claim 8, wherein the number of the shielding portions is 2, the optical control film comprises a plurality of gratings which are arranged at intervals, and the projection of the gratings on the upper surface of the display panel is perpendicular to the shielding portions.
10. An electronic device characterized by comprising the display device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046760.1A CN111290657B (en) | 2020-01-16 | 2020-01-16 | Display device and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046760.1A CN111290657B (en) | 2020-01-16 | 2020-01-16 | Display device and electronic apparatus |
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| CN111290657A CN111290657A (en) | 2020-06-16 |
| CN111290657B true CN111290657B (en) | 2022-06-21 |
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| CN202010046760.1A Active CN111290657B (en) | 2020-01-16 | 2020-01-16 | Display device and electronic apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111984154B (en) * | 2020-09-22 | 2023-08-01 | 业成科技（成都）有限公司 | Touch module and preparation method thereof |
| CN115056650A (en) * | 2022-06-17 | 2022-09-16 | 一汽奔腾轿车有限公司 | Arrangement method of combined instrument with capless eave structure for avoiding night imaging problem |
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