CN113433739A - Optical film group, display panel and electronic equipment - Google Patents
Optical film group, display panel and electronic equipment Download PDFInfo
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- CN113433739A CN113433739A CN202110836170.3A CN202110836170A CN113433739A CN 113433739 A CN113433739 A CN 113433739A CN 202110836170 A CN202110836170 A CN 202110836170A CN 113433739 A CN113433739 A CN 113433739A
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- 239000012788 optical film Substances 0.000 title claims description 37
- 239000012528 membrane Substances 0.000 claims abstract description 42
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 239000010408 film Substances 0.000 claims description 26
- 238000010586 diagram Methods 0.000 description 12
- 230000005856 abnormality Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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
- G02F1/133608—Direct backlight including particular frames or supporting means
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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 invention relates to an optical diaphragm group, a display panel and electronic equipment, wherein the optical diaphragm group is provided with a first area and a second area at least partially surrounding the first area, the optical diaphragm group comprises at least two diaphragms and a dislocation preventing unit arranged between the two adjacent diaphragms, the at least two diaphragms are arranged in a stacking way along a first direction, and any diaphragm is provided with a first side and a second side which are opposite to each other in the first direction; the dislocation preventing unit is located in the second area and comprises a first limiting part and a second limiting part, the first limiting part is arranged on a first side of one membrane, the second limiting part is arranged on a second side of the other adjacent membrane, and the first limiting part and the second limiting part are constructed to be provided with non-flat contact surfaces relative to the side surfaces of the membranes so as to prevent the two adjacent membranes from shifting along a direction perpendicular to the first direction. The optical diaphragm group can solve the problem that the current optical diaphragm is easy to be dislocated due to impact force influence, so that blue light at the edge is leaked, and the blue strip-shaped abnormity appears at the edge of a display picture.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an optical film set, a display panel, and an electronic device.
Background
In a direct type backlight module, blue light can be converted into white light through an optical film, and in a direct type backlight module adopting a sub-millimeter light emitting diode (mini-LED), the optical film can also enable the light of the mini-LED to be more uniform. However, when the existing optical film is subjected to drop test, the optical film is easily dislocated due to the influence of impact force, so that blue light at the edge is leaked, and the blue strip-shaped abnormality occurs at the edge of a display picture.
Disclosure of Invention
Therefore, it is necessary to provide an optical film set, a display panel and an electronic device, which are directed to the problem that the current optical film is easily dislocated due to the impact force, so that the blue light at the edge of the display screen leaks out, and the blue strip abnormality occurs at the edge of the display screen.
An optical patch set having a first region and a second region at least partially surrounding the first region, the optical patch set comprising: at least two membrane sheets, wherein the membrane sheets are arranged in a stacking mode along a first direction, and any membrane sheet is provided with a first side and a second side which are opposite to each other in the first direction; and the dislocation preventing unit is arranged between the two adjacent membranes and is positioned in the second area, the dislocation preventing unit comprises a first limiting part and a second limiting part, the first limiting part is arranged on the first side of one membrane, the second limiting part is arranged on the second side of the other adjacent membrane, and the first limiting part and the second limiting part are constructed to have non-flat contact surfaces so as to prevent the two adjacent membranes from deviating along the direction perpendicular to the first direction.
In an embodiment of the invention, one of the first limiting member and the second limiting member includes a prism, the other one includes a light-transmissive soft abutting member, a projection of the prism on the film overlaps a projection of the soft abutting member on the film, and the prism overlaps the soft abutting member in the first direction.
In an embodiment of the present invention, the prism includes a triangular prism, one side surface of the prism is attached to the film, and one edge of the prism opposite to the side surface is disposed toward the soft abutting member.
In one embodiment of the present invention, the second region has a square ring shape; the prism is provided with a plurality of, and a plurality of prism branch is located four edges of second district.
In one embodiment of the invention, the directions of extension of the prisms located on two adjacent sides of the second region intersect.
In one embodiment of the present invention, the hardness of the soft abutment member is lower than 90 rockwell hardness.
In one embodiment of the invention, the end of the prism facing away from the membrane on which it is located is rounded.
In an embodiment of the present invention, a thickness D1 of the soft abutment along the first direction satisfies a condition: d1 is more than or equal to 46 mu m and less than or equal to 52 mu m; the thickness D2 of the prism in the first direction satisfies the condition: d1 is more than or equal to 40 mu m and less than or equal to 48 mu m.
In an embodiment of the present invention, the first limiting member includes a plurality of first limiting protrusions arranged at intervals along a surrounding direction of the second region, the second limiting member includes a plurality of second limiting protrusions arranged at intervals along the surrounding direction of the second region, the first limiting member and the second limiting member are nested, and the first limiting protrusions and the second limiting protrusions are staggered in the surrounding direction of the second region.
In one embodiment of the invention, the free end of the first stop lug and/or the free end of the second stop lug is rounded.
A display panel comprises the optical film group.
An electronic device includes the display panel.
The optical diaphragm set comprises a first limiting part and a second limiting part, wherein the first limiting part is arranged on the first side of one diaphragm, the second limiting part is arranged on the second side of the other adjacent diaphragm, the first limiting part and the second limiting part are constructed to have non-flat contact surfaces, the non-flat contact surfaces of the first limiting part and the second limiting part are utilized to prevent the two adjacent diaphragms from shifting along the direction perpendicular to the first direction, so that the optical diaphragm set can be kept stable under the action of impact force, the optical diaphragm set is not easy to dislocate, the blue light at the edge is prevented from leaking, and the blue strip-shaped abnormity at the edge of a display picture is avoided.
Drawings
FIG. 1 is a diagram illustrating a state in which blue light leaks out due to the optical film being shifted by an impact force according to the related art;
FIG. 2 is a top view of a diaphragm in an optical diaphragm assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a stacked structure of an optical film set according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of the optical diaphragm assembly of FIG. 3, prior to assembly;
FIG. 5 is a schematic structural diagram of one of two adjacent optical diaphragms in an optical diaphragm set according to another embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of the other of two adjacent optical diaphragms in the optical diaphragm set of FIG. 5;
FIG. 7 is a schematic view of a stacked structure of the optical film stack of FIG. 5;
FIG. 8 is a schematic structural view of the optical diaphragm assembly of FIG. 7 before assembly of the diaphragms.
The reference numbers illustrate:
100: first region 400: anti-dislocation unit
200: second region 411: prism
300: the diaphragm 412: flexible abutting joint piece
300A: upper membrane 421: first limit bulge
300B: the lower diaphragm 422: second limit bulge
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" 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," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The backlight module is one of the key components of the lcd panel, and has the function of supplying sufficient light sources with uniform brightness and distribution, so that the lcd panel can normally display images. In the direct-type backlight module, light is emitted from a self-luminous light source (such as a lamp tube, an LED, etc.), reflected by a reflective plate, uniformly dispersed by a diffusion plate, and then emitted from the front surface of a display panel.
In a direct type backlight module, blue light can be converted into white light through an optical film, and in a direct type backlight module adopting a sub-millimeter light emitting diode (mini-LED), the optical film can also enable the light of the mini-LED to be more uniform. Referring to fig. 1, fig. 1 is a diagram illustrating a state in which an optical film is shifted by an impact force to leak blue light in the related art. In the existing optical film, the relative position relationship between the films 300 is unstable, and when a drop test is performed, the films 300 are easily dislocated due to the influence of impact force, so that blue light at the edge leaks out, and the blue strip-shaped abnormality appears at the edge of a display picture. In order to solve the problem of blue strip abnormality at the edge of the display screen caused by the deviation of the optical film, it is necessary to provide an optical film set to prevent blue light from leaking from the edge, thereby preventing the blue strip abnormality at the edge of the display screen.
Referring to fig. 2 and 3, fig. 2 is a top view of a diaphragm of an optical diaphragm set according to an embodiment of the present invention, and fig. 3 is a schematic diagram illustrating a stacked structure of the optical diaphragm set according to an embodiment of the present invention. An embodiment of the invention provides an optical film set having a first region 100 and a second region 200, wherein the second region 200 at least partially surrounds the first periphery, wherein the first region 100 corresponds to a display region of a display panel, and the second region 200 corresponds to a non-display region of the display panel. The optical film group includes at least two films 300 stacked in a first direction and a dislocation preventing unit 400 disposed between two adjacent films 300. The anti-dislocation unit 400 is located in the second area 200 to ensure that the arrangement of the anti-dislocation unit 400 does not hinder the display of the display panel. Any membrane 300 has a first side and a second side opposite to each other in a first direction, the anti-dislocation unit 400 includes a first limiting member and a second limiting member, the first limiting member is disposed on the first side of one membrane 300, the second limiting member is disposed on the second side of another adjacent membrane 300, and the first limiting member and the second limiting member are configured to have non-flat contact surfaces, the non-flat contact surfaces of the first limiting member and the second limiting member block the two adjacent membranes 300 from shifting in a direction perpendicular to the first direction, so that the optical membrane group can be kept stable under the effect of impact force, and is not easy to dislocate, thereby avoiding blue strip abnormality at the edge of the display screen.
Referring to fig. 3, fig. 4, or fig. 7 and fig. 8, in a possible embodiment of the present invention, the anti-dislocation unit 400 may have a rough surface formed on a surface thereof, as shown in fig. 8, the surface of the first limiting protrusion 421 and the surface of the second limiting protrusion 422, which are opposite to each other, have the rough surface, and the roughness of the rough surface may be the same or different. In addition, in the embodiment of fig. 3 and 4, the dislocation preventing unit 400 can be formed by arranging a flexible abutting member 412 and another prism 411 having a hardness greater than that of the flexible abutting member 412, and when the upper membrane 300A approaches the lower membrane 300B, the prism 411 extends into the flexible abutting member 412 to generate a mutually constrained state. In addition, when the prism 411 is inserted in contact with the soft contact member 412, the outer surface of the prism 411 may have the rough surface to increase the strength of the bonding. Here, the roughness of both inclined surfaces of the prism 411 is not limited, and may be the same roughness or different roughness. Wherein the haze produced by the roughness is not limited. In any other possible embodiment or any combinable embodiment, the inner surface of the upper film 300A may form a plurality of prisms 411 arranged, and the lower film 300B may be formed by a flexible abutting member 412, which are also described herein.
From another perspective of the above embodiment, the dislocation preventing unit 400 may also be composed of a soft limiting protrusion and a plurality of strips of hard material, wherein the strips are only used for illustrating the effect of increasing the fixing or bonding between the two diaphragms (300A, 300B), and other derivative shapes, such as strip arrangement with hooks, are also within the scope of the present invention, and the present invention is not limited thereto.
In addition, the anti-dislocation unit 400 of the present invention may also be composed of a soft sponge magnet and a plurality of strip-shaped or triangular prism-shaped hard objects, and the hard objects may be arranged by the prism 411, wherein a plurality of magnets having different magnetism from the soft sponge magnet are formed on the surface of the prism for adsorption and fixation, so as to increase the fixation or bonding effect between the two membranes (300A, 300B).
Referring to fig. 4, fig. 4 is a schematic structural diagram illustrating the optical film set in fig. 3 before the films are assembled, in some embodiments, one of the first limiting member and the second limiting member includes a prism 411, the other one includes a transparent soft abutting member 412, a projection of the prism 411 on the film 300 overlaps a projection of the soft abutting member 412 on the film 300, and the prism 411 and the soft abutting member 412 overlap in the first direction. Since the projection of the prism 411 on the film 300 overlaps the projection of the soft abutting member 412 on the film 300, and the prism 411 overlaps the soft abutting member 412 in the first direction, in the assembled state, there is a mutual pressing force between the prism 411 and the soft abutting member 412 in the first direction, so that when an external impact force is applied, a resistance is generated between the prism 411 and the soft abutting member 412, which prevents the film 300 from shifting in a direction perpendicular to the first direction, and prevents blue light from leaking out at the edge, thereby preventing a blue strip abnormality from occurring at the edge of the display screen. In addition, the prism 411 and the soft contact member 412 cooperate to prevent the displacement, so that the membrane 300 is not worn. In addition, the prism 411 can cooperate with the soft abutting piece 412 to achieve the anti-dislocation effect, and can achieve the brightness enhancement effect to a certain extent, so that the display effect is improved.
In an embodiment, the soft abutting member 412 is made of polyethylene terephthalate (PET), since PET has good mechanical properties and good physical and mechanical properties within a wide temperature range, the soft abutting member 412 can be used for a long time within a temperature range of 55 ℃ to 60 ℃, and has good fatigue resistance, friction resistance and dimensional stability, so that the soft abutting member 412 is not easily damaged after the display panel is impacted, and is not easily damaged due to heat emitted by the display panel, thereby effectively playing a role of preventing dislocation by being matched with the prism 411, and avoiding the occurrence of blue strip abnormality at the edge of the display screen. Moreover, because the transparency of the polyethylene terephthalate is high, the influence of the arrangement of the anti-dislocation unit 400 on the backlight of the backlight module can be well avoided. Further, since the polyethylene terephthalate has excellent electrical insulation, the flexible contact member 412 made of polyethylene terephthalate is applied to the film 300 at a position corresponding to the non-display area of the display panel, so that the film can be fitted to the prism 411 to prevent misalignment and prevent interference with electrical connection between the members of the display panel.
In some embodiments, the thickness D1 of the soft abutment 412 in the first direction satisfies the condition: 46 μm < D1 < 52 μm, the thickness D2 of the prism 411 in the first direction satisfies the condition: d1 is more than or equal to 40 mu m and less than or equal to 48 mu m. In an assembled state, the soft abutting pieces 412 and the prisms 411 between two adjacent membranes 300 are overlapped in the first direction, and the soft abutting pieces 412 deform and dent under the extrusion force of the prisms 411 to form a state of partially wrapping the prisms 411, and when the thickness of the soft abutting pieces 412 in the first direction is larger, the degree of deformation of the soft abutting pieces 412 is larger, so that the soft abutting pieces can better cooperate with the prisms 411 to prevent the membranes 300 from shifting when being impacted by external force, and avoid the leakage of blue light at the edges, thereby avoiding the occurrence of blue strip abnormality at the edges of the display screen. Moreover, when the thickness of the soft abutting member 412 in the first direction is greater than the thickness of the prism 411 in the first direction, the soft abutting member 412 can play a role of buffering when the soft abutting member 412 and the prism 411 are mutually pressed, so as to prevent the prism 411 from damaging the membrane 300.
In some embodiments, the prism 411 includes a triangular prism 411, and one side of the prism 411 is attached to the film 300, and one edge of the prism 411 opposite to the side is disposed toward the soft abutting member 412 to form a non-flat contact surface with respect to the side of the film 300. By attaching one side surface of the triangular prism 411 to the diaphragm 300, a large contact area is formed between the triangular prism 411 and the diaphragm 300, and the phenomenon that the triangular prism 411 and the diaphragm 300 are deviated is not easy to occur. An edge of the prism 411 opposite to the side face is disposed toward the soft abutting member 412, which is equivalent to abutting the tip of the prism 411 against the soft abutting member 412, and at the position where the tip of the prism 411 abuts, the soft abutting member 412 deforms and dents, so that the contact area between the prism 411 and the soft abutting member 412 is increased, and thus when the external force impacts, the friction between the prism 411 and the soft abutting member 412 is increased, further avoiding the membrane 300 from shifting under the external force impact, avoiding the leakage of blue light at the edge, and avoiding the occurrence of blue strip abnormality at the edge of the display screen.
In some embodiments, the second region 200 is in the shape of a square ring; the plurality of prisms 411 are disposed, and the plurality of prisms 411 are disposed on four sides of the second region 200. Through setting up and respectively setting up prism 411 on four edges of square annular second district 200 for when soft butt piece 412 simultaneously with the pressfitting of these a plurality of prisms 411, the prism 411 of different positions can play a role simultaneously, produces bigger resistance, makes diaphragm 300 be difficult to take place the skew, avoids marginal blue light to spill, in order to avoid showing that picture edge appears blue banding unusual.
In some embodiments, the extending directions of the prisms 411 on two adjacent sides of the second region 200 are crossed, so that when the external force impacts, the directions of the resistances generated by the prisms 411 on two adjacent sides of the second region 200 having a square ring shape are different, so that the diaphragm 300 can be prevented from being shifted from different directions comprehensively.
In some embodiments, a plurality of prisms 411 are uniformly arranged on each side of the second square-ring area 200, and the extending directions of the prisms 411 on two adjacent sides of the second square-ring area 200 are perpendicular to each other, so that the diaphragm 300 can be prevented from being displaced in four directions when an external impact force is applied.
In some embodiments, the soft abutment member 412 has a hardness lower than 90 rockwell hardness, so that the lower hardness of the soft abutment member cooperates with the prism 411, and the soft abutment member abuts against the prism to generate compression, thereby better preventing the diaphragm 300 from being deflected under the impact of external force.
In some embodiments, the end of the prism 411 opposite to the membrane 300 is provided with a rounded corner, so as to prevent the edge of the prism 411 from collapsing when the membrane 300 is vibrated, and to prevent foreign matters from being formed in the display panel to affect the optical performance of the display panel.
Referring to fig. 5 to 7, fig. 5 shows a schematic structural diagram of one of two adjacent films of an optical film set according to another embodiment of the present invention, fig. 6 shows a schematic structural diagram of the other of the two adjacent films of the optical film set in fig. 5, and fig. 7 shows a schematic structural diagram of a stack of the optical film set in fig. 5. In some embodiments, the first limiting member includes a plurality of first limiting protrusions 421 spaced along the surrounding direction of the second region 200, that is, the plurality of first limiting protrusions 421 form a fence structure surrounding the first region 100, the second limiting member includes a plurality of second limiting protrusions 422 spaced along the surrounding direction of the second region 200, that is, the plurality of second limiting protrusions 422 form a fence structure surrounding the first region 100, the first limiting member and the second limiting member are nested, and in the surrounding direction of the second region 200, the first limiting protrusion 421 and the second limiting protrusion 422 are arranged in a staggered manner, so that the first limiting protrusion 421 and the second limiting protrusion 422 can block each other when the membrane 300 is impacted by an external force, thereby preventing the membrane 300 from shifting, and further preventing the display frame from generating a blue strip-like anomaly. In an embodiment, the first limiting protrusion 421 and the second limiting protrusion 422 are printed on the surface of the optical film by an imprinting method, and the first limiting protrusion 421 and the second limiting protrusion 422 are imprinted on the surface of the film 300 by a printing plate, so that the method is simple and convenient, the operation efficiency is high, and the process of disposing the first limiting protrusion 421 and the second limiting protrusion 422 will not damage the structure of the film 300 itself.
Referring to fig. 7 and 8, fig. 8 is a schematic diagram illustrating the optical diaphragm assembly of fig. 7 before the assembly of the diaphragms. In some embodiments, the thickness D3 of the first limiting member along the first direction satisfies the condition: 46 μm or more and D3 or less and 54 μm or less, and the thickness D4 of the second stopper along the first direction satisfies the condition: d4 is more than or equal to 40 mu m and less than or equal to 48 mu m. In an assembled state, the first limiting member and the second limiting member between two adjacent membranes 300 are overlapped in the first direction, and when the thickness of the first limiting member in the first direction is greater than that of the second limiting member in the first direction, so that the first limiting member and the second limiting member are nested, the free end of the second limiting member cannot contact the membrane 300 where the first limiting member is located, and therefore the membrane 300 is prevented from being damaged by the first limiting member or the second limiting member.
In some embodiments, the free end of the first limiting protrusion 421 is provided with a rounded corner, and the rounded corner is provided at the free end of the first limiting protrusion 421, so as to prevent the edge of the first limiting protrusion 421 from collapsing when the membrane 300 is vibrated, and to prevent foreign matters from being formed in the display panel to affect the optical performance of the display panel.
In some embodiments, the free end of the second limiting protrusion 422 is provided with a rounded corner, and the rounded corner is provided at the free end of the second limiting protrusion 422, so that the edge of the second limiting protrusion 422 is prevented from collapsing when the membrane 300 is vibrated, and foreign matters are formed in the display panel to affect the optical performance of the display panel.
In some embodiments, the free end of the first limiting protrusion 421 and the free end of the second limiting protrusion 422 are both provided with rounded corners, so as to prevent the edges of the first limiting protrusion 421 and the second limiting protrusion 422 from collapsing, and form foreign matters in the display panel to affect the optical performance of the display panel.
The present invention further provides a display panel, which includes the above optical film set, and since the display panel includes all technical features of the above optical film set, the display panel has all technical effects in the above embodiments, and details are not repeated herein.
The present invention further provides an electronic device, which includes the display panel, and since the electronic device includes all technical features of the display panel, the electronic device has all technical effects in the above embodiments, and details are not repeated herein.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification 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, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. An optical patch set having a first region and a second region at least partially surrounding the first region, the optical patch set comprising:
at least two membrane sheets, wherein the membrane sheets are arranged in a stacking mode along a first direction, and any membrane sheet is provided with a first side and a second side which are opposite to each other in the first direction; and
the dislocation preventing unit is arranged between the two adjacent membranes and located in the second area and comprises a first limiting part and a second limiting part, the first limiting part is arranged on the first side of one membrane, the second limiting part is arranged on the second side of the other adjacent membrane, and the first limiting part and the second limiting part are constructed to have non-flat contact surfaces so as to prevent the two adjacent membranes from deviating along the direction perpendicular to the first direction.
2. The optical film set according to claim 1, wherein one of the first limiting member and the second limiting member comprises a prism, the other comprises a light-transmissive soft abutting member, a projection of the prism on the film overlaps a projection of the soft abutting member on the film, and the prism overlaps the soft abutting member in the first direction.
3. The optical film stack of claim 2, wherein the prism comprises a triangular prism, and a side of the prism is attached to the film, and an edge of the prism opposite to the side is disposed toward the soft abutting member.
4. The optical film stack according to claim 3, wherein the second region is in the shape of a square ring;
the prism is provided with a plurality of, and a plurality of prism branch is located four edges of second district.
5. The optical film stack according to claim 4, wherein the extending directions of the prisms located on the two adjacent sides of the second region intersect.
6. The optical film stack according to claim 2, wherein the hardness of the soft abutment member is lower than 90 rockwell hardness.
7. A set according to any one of claims 2 to 6, wherein the prism is rounded away from the end of the patch on which it is located.
8. An optical film group according to any of claims 2 to 6, wherein the thickness D1 of the soft abutment member along the first direction satisfies the condition:
46μm≤D1≤52μm；
the thickness D2 of the prism in the first direction satisfies the condition:
40μm≤D1≤48μm。
9. the optical film assembly as claimed in claim 1, wherein the first retaining member comprises a plurality of first retaining protrusions spaced along the surrounding direction of the second region, the second retaining member comprises a plurality of second retaining protrusions spaced along the surrounding direction of the second region, the first retaining member and the second retaining member are nested, and the first retaining protrusion and the second retaining protrusion are offset in the surrounding direction of the second region.
10. The optical film stack according to claim 9, wherein the free end of the first limiting protrusion and/or the free end of the second limiting protrusion is rounded.
11. A display panel comprising the optical film group according to any one of claims 1 to 10.
12. An electronic device characterized by comprising the display panel according to claim 11.
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| CN202110836170.3A CN113433739A (en) | 2021-07-23 | 2021-07-23 | Optical film group, display panel and electronic equipment |
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| CN202110836170.3A CN113433739A (en) | 2021-07-23 | 2021-07-23 | Optical film group, display panel and electronic equipment |
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