CN109585510A - Display screen body - Google Patents
Display screen body Download PDFInfo
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- CN109585510A CN109585510A CN201811456525.0A CN201811456525A CN109585510A CN 109585510 A CN109585510 A CN 109585510A CN 201811456525 A CN201811456525 A CN 201811456525A CN 109585510 A CN109585510 A CN 109585510A
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- screen body
- display screen
- heat
- sink unit
- semitransparent film
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/88—Dummy elements, i.e. elements having non-functional features
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of display screen bodies, it solves vehicle-mounted OLED screen body in the prior art and is often subject to being exposed to the sun for sunlight, the problem of generated high temperature tends not to timely conduct from OLED screen body, and high temperature can accelerate the aging of OLED screen body, reduces its service life.A kind of display screen body provided by the embodiment of the present invention, comprising: display luminescent layer；It is layered in the substrate of the non-light emission side of the display luminescent layer；And heat loss through radiation component；Wherein, the display luminescent layer includes multiple sub-pixels, and the heat loss through radiation component includes at least one heat-sink unit, and the orthographic projection of at least one described heat-sink unit on the substrate is between the orthographic projection of the multiple sub-pixel on the substrate.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of display screen body.
Background technique
With the development of display technology, OLED (Organic Light Emitting Diode) shields body and increasingly has been favored by people, especially
It is vehicle-mounted OLED screen body using more and more extensive, but in routine use, vehicle-mounted OLED screen body is often subject to the sudden and violent of sunlight
It shining, generated high temperature tends not to timely conduct from OLED screen body, and high temperature can accelerate the aging of OLED screen body,
Make the reduction of its service life.
Summary of the invention
In view of this, the embodiment of the present invention is dedicated to providing a kind of display screen body, to solve vehicle-mounted OLED in the prior art
Screen body is often subject to being exposed to the sun for sunlight, and generated high temperature tends not to timely conduct from OLED screen body, and high temperature
The aging that can accelerate OLED screen body, make its service life reduce the problem of.
One aspect of the present invention provides a kind of display screen body, comprising: display luminescent layer；It is layered in the non-of the aobvious luminescent layer
The substrate of light emission side；And the heat loss through radiation component of the light emission side of the display luminescent layer is set；Wherein, the display shines
Layer includes multiple sub-pixels, and the heat loss through radiation component includes at least one heat-sink unit, at least one described heat-sink unit exists
Orthographic projection on the substrate is between the orthographic projection of the multiple sub-pixel on the substrate.
In one embodiment, the shape of at least one heat-sink unit includes any one in following shape: ball
Body, hemisphere, spheroid, cuboid and square.
In one embodiment, the display screen body further includes being arranged at least one described heat-sink unit far from the base
The part reflective semitransparent film of the side of plate.
In one embodiment, the surface of at least one heat-sink unit is arranged in the part reflective semitransparent film.
In one embodiment, the display screen body further comprises: support membrane, and the support membrane setting is anti-described half
Between semi-permeable membrane and at least one described heat-sink unit.
In one embodiment, the surface of the support membrane, the part reflective semitransparent film packet is arranged in the part reflective semitransparent film
Include multiple vacancy sections；Wherein, the multiple vacancy section is correspondingly arranged at the light emission side of the multiple sub-pixel.
In one embodiment, the orthographic projection of the vacancy section on the substrate covers the sub-pixel in the substrate
On orthographic projection.
In one embodiment, the material of the support membrane includes any one in following material: acrylic and polyamides
Imines.
In one embodiment, the material of at least one heat-sink unit includes any one in following material: glass
Glass, acrylic, silica and aluminum oxide.
In one embodiment, the material of the part reflective semitransparent film includes metal material, the thickness of the part reflective semitransparent film
For 8nm-16nm；And/or the shape of at least one heat-sink unit is the sphere, the diameter of the sphere is 6 μm of -12 μ
m。
A kind of display screen body provided by the embodiment of the present invention, by the gap of multiple sub-pixels of display screen body
Heat-sink unit, which is arranged, realizes active heat loss through radiation to display device inside display screen body, shows to reduce in actual use
The temperature of display screen body extends the service life of display screen body.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of display screen body provided by one embodiment of the present invention.
Fig. 2 show the position between at least one heat-sink unit provided by one embodiment of the present invention and multiple sub-pixels
The structural schematic diagram of relationship.
Fig. 3 show at least one heat-sink unit provided by one embodiment of the present invention and is evenly distributed in display luminescent layer
Light emission side structural schematic diagram.
What Fig. 4 showed at least one heat-sink unit provided by one embodiment of the present invention dispersion is distributed in display luminescent layer
Light emission side structural schematic diagram.
Fig. 5 show the structural representation of the flat shape of at least one heat-sink unit provided by one embodiment of the present invention
Figure.
Fig. 6 show the structural schematic diagram of the display screen body of another embodiment of the present invention offer.
Fig. 7 show the position between part reflective semitransparent film provided by one embodiment of the present invention and at least one heat-sink unit
The structural schematic diagram of relationship.
Fig. 8 show the structural schematic diagram for the display screen body that another embodiment of the invention provides.
Fig. 9 show half comprising multiple vacancy sections anti-half provided by one embodiment of the present invention formed on support membrane
The structural schematic diagram of permeable membrane.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The structure that Fig. 1 show the display screen body provided by one embodiment of the present invention comprising at least one heat-sink unit is shown
It is intended to.As shown in Figure 1, the display screen body includes: display luminescent layer 12；It is layered in the substrate of the non-light emission side of display luminescent layer
11；And heat loss through radiation component；Wherein, display luminescent layer 12 includes multiple sub-pixels 141,142 and 143, heat loss through radiation component
Including at least one heat-sink unit 13, the orthographic projection 151 and 152 of at least one heat-sink unit 13 on the substrate 11 is located at multiple sons
Between the orthographic projection 163 on the substrate 11 of pixel 143,142 and 141 and 162 or 162 and 161；Wherein, the heat loss through radiation portion
Part is set to the light emission side of the display luminescent layer.
It should be appreciated that light emission side refers to the side heat loss through radiation as shown in Figure 1 by display luminescent layer 12 to encapsulated layer 17
Component can be set in the lower section of encapsulated layer 17 as shown in Figure 1, and the upper of encapsulated layer 17 can also be arranged in heat loss through radiation component
Side, the embodiment of the present invention are not intended to limit the position of heat loss through radiation component, and heat loss through radiation component can also be arranged in luminescent layer, hair
On photosphere, in touch control layer, in touch control layer, in encapsulated layer and encapsulated layer is outer etc., if can by the heat in display screen body with
8 μm -14 μm of wavelength of infrared ray form is launched in vitro to display screen.Meanwhile heat loss through radiation component can be by one
Heat-sink unit 13, even more heat-sink units 13 form, and the embodiment of the present invention is not intended to limit the number of heat-sink unit 13, radiate
As long as the number of unit 13 is enough the heat in display screen body giving off display in the form of 8 μm -14 μm of wavelength of infrared ray
Shield body.
Heat-sink unit refers to that the component being made of the material with heat loss through radiation function, heat-sink unit have radiation because of it
The function of heat dissipation, can be absorbed the heat in display screen body, and the heat being absorbed into is infrared linear with 8 μm -14 μm of wavelength
Formula is launched in vitro to display screen.Herein, the heat generated when on the one hand the heat in display screen body is display screen body running
On the other hand amount is that generated heat is irradiated from part sunlight.
Specifically, as shown in Fig. 2, the distribution of at least one heat-sink unit 13 is arranged in multiple sub-pixels 141,142 and 143
Gap in, i.e. the orthographic projection 151 or 152 of at least one heat-sink unit 13 on the substrate 11 is located at multiple sub-pixels 141,142
Between 143 orthographic projection 161,162 and 163 on the substrate 11.Multiple sub-pixels 141,142 and 143 are for making display screen body
It shines, a sub-pixel may include a B pixel 143 or a R pixel 142 or a G pixel 141.In order to not influence display
Shield shining for body, heat-sink unit 13 needs to be placed in the gap of adjacent two sub-pixels 143 and 142 or 142 and 141, needs
It should be noted that adjacent two sub-pixels 143 and 142 or 142 and 141 refer to laterally adjacent two sub-pixels.It should manage
Solution, heat-sink unit 13 can also be arranged in pixel confining layer between the sub-pixels.
It is dissipated it can be seen that being arranged in the gap for passing through multiple sub-pixels 141,142 and 143 of the light emission side in display screen body
Hot cell realizes the active heat loss through radiation to display device inside display screen body, to reduce display screen body in actual use
Temperature, extend the service life of display screen body.
Since display luminescent layer 12 includes multiple sub-pixels 143,142 and 141, and in laterally adjacent two sub-pixels
Heat-sink unit 13 is placed between 143 and 142 or 142 and 141, so multiple heat dissipations will be dispersed on display luminescent layer 12
Unit 13.The embodiment of the present invention is not intended to limit the distribution mode of heat-sink unit 13, and distribution mode may include following two:
A. as shown in figure 3, heat-sink unit 13 is evenly distributed in the top of display luminescent layer 12, i.e., each laterally adjacent
Heat-sink unit 13 is all placed in the gap of two sub-pixels 143 and 142 or 142 and 141；
B. as shown in figure 4, the dispersion of heat-sink unit 13 is distributed in the top for showing luminescent layer 12, i.e., each laterally adjacent
Two sub-pixels 143 and 142 or 142 and 141 gap in, placed heat-sink unit 13 in some gaps, in some gaps
Heat-sink unit 13 is not placed.
Fig. 5 show the structural representation of the flat shape of at least one heat-sink unit provided by one embodiment of the present invention
Figure.The shape of at least one heat-sink unit 13 includes any one in following shape: sphere, hemisphere, spheroid, cuboid
And square.
It should be appreciated that as shown in figure 5, round, semicircle, ellipse, rectangle and the corresponding heat-sink unit 13 of square
Shape be sphere, hemisphere, spheroid, cuboid and square.The embodiment of the present invention is not intended to limit the shape of heat-sink unit 13
Shape, as long as the volume of heat-sink unit 13 is small enough to that adjacent two sub-pixels 143 and 142 or 142 and 141 can be placed on
Gap in, and do not influence display screen body shine.But the volume of heat-sink unit 13 be not it is the smaller the better, meeting
It can be placed in the gap of adjacent two sub-pixels 143 and 142 or 142 and 141, and not influence what display screen body shone
Under the premise of, shape selects so that the largest surface area of exposure in display screen body of heat-sink unit 13 is principle, i.e. heat dissipation is single
Member 13 is smaller with the contact area of its upper and lower surface, because the surface area that heat-sink unit 13 is exposed in display screen body is bigger, just
The heat in display screen body can be more absorbed, and the heat being absorbed into is converted to 8 μm -14 μm of wavelength of infrared radiation
Display screen is external out, so as to reach better heat dissipation effect.
Fig. 6 show the structural schematic diagram of the display screen body of another embodiment of the present invention offer.As shown in fig. 6, display
Shielding body further includes the part reflective semitransparent film 61 that at least one side of the heat-sink unit 13 far from substrate 11 is arranged in.
It should be appreciated that in display screen body be arranged part reflective semitransparent film 61 effect first is that in order to not influence heat-sink unit 13 to
Display screen emits infrared ray in vitro, second is that for the minimal light out for influencing display screen body.Specifically, part reflective semitransparent film 61
Reflection be in order to which part sunlight is reflected back, prevent sunlight enter in display screen body；The transmission of part reflective semitransparent film 61
It is to play the role of derived, is on the one hand to not influence the light that goes out of display screen body, the light that export display screen body issues, another party
Face is that display screen is external, i.e., part reflective semitransparent film 61 and heat-sink unit 13 are made jointly in order to export to infrared ray mentioned above
With the active heat loss through radiation realized to display device inside display screen body, to reduce the temperature of display screen body in actual use
Degree, extends the service life of display screen body.
It can be seen that when vehicle-mounted OLED screen body irradiates in the sun, firstly, part reflective semitransparent film 61 is anti-by part sunlight
It is emitted back towards, secondly, part reflective semitransparent film 61 and 13 collective effect of heat-sink unit, by the heat in display screen body with 8 μm -14 μm of wavelength
Infrared ray form give off that display screen is external, to reduce the temperature of display screen body.
Fig. 7 show the position between part reflective semitransparent film provided by one embodiment of the present invention and at least one heat-sink unit
The structural schematic diagram of relationship.As shown in fig. 7, the surface of at least one heat-sink unit 13 is arranged in part reflective semitransparent film 61.It is radiating
The surface setting part reflective semitransparent film 61 of unit 13 not only simplifies the mold layer structure of display screen body, sends out when reducing the bending of display screen body
The risk of raw fracture, additionally it is possible to achieve the effect that heat loss through radiation.
Fig. 8 show the structural schematic diagram for the display screen body that another embodiment of the invention provides.As shown in figure 8, display
Screen body further comprises: support membrane 81, support membrane 81 are arranged between part reflective semitransparent film 61 and at least one heat-sink unit 13.It answers
Work as understanding, it is to support part reflective semitransparent film 61 that support membrane 81 is added between part reflective semitransparent film 61 and heat-sink unit 13.
Fig. 9 show half comprising multiple vacancy sections anti-half provided by one embodiment of the present invention formed on support membrane
The structural schematic diagram of permeable membrane.As shown in figure 9, the surface of support membrane 81 is arranged in part reflective semitransparent film 61, part reflective semitransparent film 61 includes
Multiple vacancy sections 91；Wherein, multiple vacancy sections 91 are correspondingly arranged at the light emission side of multiple sub-pixels 141,142 and 143.
It should be appreciated that support membrane 81 surface be arranged part reflective semitransparent film 61 when, in order to not influence display screen body shine,
It is not provided with part reflective semitransparent film 61 in the top of the surface corresponding sub-pixel 141,142 or 143 of support membrane 81, so foring such as figure
It include the part reflective semitransparent film 61 of multiple vacancy sections 91 shown in 9, wherein the lower section of multiple vacancy sections 91 is correspondingly arranged on multiple sons
Pixel 141,142 and 143.Vacancy section 91 is set on part reflective semitransparent film 61, and the light that display screen body can be made to issue is with higher
Light extraction efficiency is launched by vacancy section 91.Herein, discontinuous due to part reflective semitransparent film 61, i.e., on part reflective semitransparent film 61
There is vacancy section 91, when part reflective semitransparent film 61 is arranged, the addition of support membrane 81 can also avoid the occurrence of the attached of part reflective semitransparent film 61
The bad phenomenon of property.
It can be seen that when vehicle-mounted OLED screen body irradiates in the sun, firstly, part reflective semitransparent film 61 is anti-by part sunlight
It is emitted back towards, secondly, the part reflective semitransparent film 61 and 13 collective effect of heat-sink unit on the surface of support membrane 81 is arranged in, by display screen body
In heat give off that display screen is external in the form of 8 μm -14 μm of wavelength of infrared ray, to reduce the temperature of display screen body.
In one embodiment of the invention, vacancy section 91 on the substrate 11 orthographic projection covering sub-pixel 141,142 or
143 orthographic projection on the substrate 11.It should be appreciated that shining in order to not influence display screen body, the area of vacancy section 91 should be big
In be equal to sub-pixel 141,142 or 143 area, in this way set by part reflective semitransparent film 61 will not just block sub-pixel 141,
142 or 143, so that the light for issuing display screen body is launched with higher light extraction efficiency by vacancy section 91.
In one embodiment of the invention, the material of support membrane 81 includes any one in following material: acrylic
And polyimides.It should be noted that shining in order to not influence display screen body, support membrane 81 needs to select not blocking out light
Material, the embodiment of the present invention are not intended to limit the material of support membrane 81, as long as not influencing shining for display screen body, other meet this
The material of part is within the scope of the present invention.
In one embodiment of the invention, the material of at least one heat-sink unit 13 includes any one in following material
Kind: glass, acrylic, silica and aluminum oxide.It should be appreciated that the material of the heat-sink unit 13 of shape as shown in Figure 5
It is not limited only to glass mentioned above, acrylic, silica and aluminum oxide, can also be SiOxNy.Herein, it radiates
The material of unit 13 should meet transparent, and the characteristic that refractive index is high, and refractive index needs between 1.5-2, in this way by radiating
Heat in display screen body can be given off display screen body by the heat-sink unit 13 that cooling material is constituted in the form of infrared ray
Outside, to realize the effect of heat loss through radiation.
In another embodiment of the present invention, the material of part reflective semitransparent film 61 includes metal material, part reflective semitransparent film 61
With a thickness of 8nm-16nm；And/or the shape of at least one heat-sink unit 13 is sphere, the diameter of sphere is 6 μm -12 μm.
It should be appreciated that metal material may include any one in following material: silver, aluminium, magnesium, copper and alloy, wherein
Alloy can be formed by least two combinations of materials in following material: silver, aluminium, magnesium and copper.It should be noted that half-reflection and half-transmission
The material of film 61 can be simple metal, or the alloy being composed of different metal, herein, part reflective semitransparent film
61 material is not limited solely to these four simple metals of silver, aluminium, magnesium and copper, can also be other simple metals；Half
The material of anti-semi-permeable membrane 61 be also not limited to by least two metallic combinations in these four metals of silver, aluminium, magnesium and copper and
At alloy, can also be alloy made of other metallic combinations.Meanwhile other can combine reflex and transmission is made
Material all should belong within protection scope of the present invention.
When the material of part reflective semitransparent film 61 is metal material, the thickness of part reflective semitransparent film 61 can be set to 8nm-16nm
In any one numerical value, it can be set as the discrete value such as 8nm, 12nm and 16nm.If the thickness of part reflective semitransparent film 61
Greater than 16nm, blocked up part reflective semitransparent film 61 will affect the effect of its transmission and reflection, can not only make the spoke of display screen body in this way
The effect for penetrating heat dissipation is deteriorated, while also will affect shining for display screen body；If the thickness of part reflective semitransparent film 61 is less than 8nm, meeting
There is the problem of film forming of part reflective semitransparent film 61, non-uniform part reflective semitransparent film 61, i.e. part reflective semitransparent film 61 may be will form
On will appear the region of not film, this can the serious effect for influencing its transmission and reflection；If the thickness of part reflective semitransparent film 61
The problem of being set as between 8nm-16nm, being so not only not in film forming, but also will not also be due to the thickness of part reflective semitransparent film 61
Effect that is blocked up or excessively thin and influencing heat loss through radiation.
It should be appreciated that go out light when the shape of at least one heat-sink unit 13 is sphere in order to not influence display screen body,
The diameter of sphere can be set to any one numerical value in 6 μm -12 μm, it can be set as 6 μm, 9 μm and 12 μm etc. it is discrete
Value.If the diameter of sphere is greater than 12 μm, excessive diameter can make sphere cover sub-pixel 141,142 or 143, to influence
Display screen body shines；If the diameter of sphere is less than 6 μm, too small diameter can make the heat-sink unit being exposed in display screen body
13 surface area is too small, to influence the effect of the heat loss through radiation of display screen body；If the diameter of sphere is set as 6 μm -12 μm,
The case where being so not only not in covering sub-pixel 141,142 or 143, but also will not influence the effect of the heat loss through radiation of display screen body
Fruit.Meanwhile sphere is a point contact with its surface contacted up and down, so the heat-sink unit 13 being exposed in display screen body
Surface area ratio is larger, so as to more absorb the heat in display screen body, and the heat being absorbed into is converted to 8 μ of wavelength
It is external that m-14 μm of infrared radiation goes out display screen.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, made any modification, equivalent replacement etc. be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of display screen body characterized by comprising
Show luminescent layer；
It is layered in the substrate of the non-light emission side of the display luminescent layer；And
Heat loss through radiation component in the display screen body is set；Wherein, the display luminescent layer includes multiple sub-pixels, described
Heat loss through radiation component includes at least one heat-sink unit, and the orthographic projection of at least one described heat-sink unit on the substrate is located at
Between the orthographic projection of the multiple sub-pixel on the substrate.
2. display screen body according to claim 1, which is characterized in that the shape of at least one heat-sink unit include with
Any one in lower shape: sphere, hemisphere, spheroid, cuboid and square.
3. display screen body according to claim 2, which is characterized in that the display screen body further include setting it is described at least
The part reflective semitransparent film of one side of the heat-sink unit far from the substrate.
4. display screen body according to claim 3, which is characterized in that part reflective semitransparent film setting it is described at least one
The surface of heat-sink unit.
5. display screen body according to claim 3, which is characterized in that the display screen body further comprises: support membrane, institute
Support membrane is stated to be arranged between the part reflective semitransparent film and at least one described heat-sink unit.
6. display screen body according to claim 5, which is characterized in that the support membrane is arranged in the part reflective semitransparent film
Surface, the part reflective semitransparent film include multiple vacancy sections；Wherein, the multiple vacancy section is correspondingly arranged at the multiple sub-pixel
The light emission side.
7. display screen body according to claim 6, which is characterized in that the orthographic projection of the vacancy section on the substrate is covered
Cover the orthographic projection of the sub-pixel on the substrate.
8. the display screen body according to any one of claim 5 to 7, which is characterized in that the material packet of the support membrane
Include any one in following material: acrylic and polyimides.
9. display screen body as claimed in any of claims 1 to 7, which is characterized in that at least one described heat dissipation is single
The material of member includes any one in following material: glass, acrylic, silica and aluminum oxide.
10. the display screen body according to any one of claim 3 to 7, which is characterized in that the material of the part reflective semitransparent film
Material include metal material, the part reflective semitransparent film with a thickness of 8nm-16nm；And/or
The shape of at least one heat-sink unit is the sphere, and the diameter of the sphere is 6 μm -12 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811456525.0A CN109585510B (en) | 2018-11-30 | 2018-11-30 | Display screen body |
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|---|---|---|---|
| CN201811456525.0A CN109585510B (en) | 2018-11-30 | 2018-11-30 | Display screen body |
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| CN109585510B CN109585510B (en) | 2021-01-05 |
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| US12009371B2 (en) | 2019-06-13 | 2024-06-11 | Hefei Boe Joint Technology Co., Ltd. | Display device with transparent electric insulating heat conductive protective layer and production method thereof |
| CN111933817A (en) * | 2020-07-27 | 2020-11-13 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN111933817B (en) * | 2020-07-27 | 2022-09-13 | 合肥维信诺科技有限公司 | Display panel and display device |
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