CN208622776U - A kind of display module structure and its top light emitting display panel and display device - Google Patents
A kind of display module structure and its top light emitting display panel and display device Download PDFInfo
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- CN208622776U CN208622776U CN201821251676.8U CN201821251676U CN208622776U CN 208622776 U CN208622776 U CN 208622776U CN 201821251676 U CN201821251676 U CN 201821251676U CN 208622776 U CN208622776 U CN 208622776U
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Abstract
The utility model relates to display module structure and its top light emitting display panel and display device, display module structure includes the first functional layer (100) being cascading, adhesive layer (200) and the second functional layer (300), the adhesive layer adheres to first functional layer and second functional layer, there is uneven structure (310) close to the second function layer surface of the adhesive layer, the adhesive layer has the surface to match with the uneven structure of second functional layer.The display module structure and its top light emitting display panel and display device of the utility model, by the way that uneven structure is arranged in layer structure on the outside, so that external force is first dispersed before reaching internal illumination pixel, reduce a possibility that light emitting pixel is led to damage by concentrated stress, increase the interstructural adhesiveness of layer simultaneously, it avoids the dystopy between layer structure, separate, further avoid display device functionalities failure.
Description
Technical field
The utility model belongs to display screen technology field, and in particular to a kind of display module structure and its top luminescence display face
Plate and display device.
Background technique
OLED display possesses the characteristics of high brightness, high reaction speed, light and short, full-color no subtense angle, just gradually
It is widely used on various portable digital equipment display screens.OLED display be not necessarily to backlight, but by when external impact more
It is easily damaged, wherein light emitting pixel can be generated irreversible damage by overstress.For example, can be sent out by shock-testing
Existing, common display screen is caused to shift and remove between the inner layer structure of poor adhesion by impact force, and stress is excessively
Concentration can not disperse, and then lead to that light emitting pixel is destroyed and variegation occurs.
Utility model content
It is mentioned based on this technical problem to be solved by the utility model is to be directed to the deficiency of existing product crashworthiness
For a kind of display module structure for preventing the offset of external impacts layer flowering structure and light emitting pixel to be damaged and its top light emitting display panel
And display device.
A kind of display module structure, it is described including the first functional layer, adhesive layer and the second functional layer being cascading
Adhesive layer adheres to first functional layer and second functional layer, and the second function layer surface close to the adhesive layer has not
Flat structures, the adhesive layer have the surface to match with the uneven structure of second functional layer.
The uneven structure is arranged in uniform intervals in one of the embodiments,.
The uneven structure has the section perpendicular to first functional layer, section in one of the embodiments,
Both ends are respectively the big end far from the adhesive layer and the small end close to the adhesive layer.
The section is in inverted trapezoidal or up-side down triangle in one of the embodiments,.
The spacing of the adjacent uneven structure is twice of the section big end width in one of the embodiments,.
First functional layer is touch panel in one of the embodiments, and the second functional layer is cover board.
Correspondingly, the utility model additionally provides a kind of top light emitting display panel, including display module structure above-mentioned.
It in one of the embodiments, further include several luminescence units and the pixel limit between the luminescence unit
Given layer, the unevenness structure are correspondingly arranged with the pixel confining layer.
The uneven structure falls completely within the picture in the projection of the pixel confining layer in one of the embodiments,
Plain confining layers.
Correspondingly, the utility model additionally provides a kind of display device, including top light emitting display panel above-mentioned.
The display module structure and its top light emitting display panel and display device of the utility model, pass through layer knot on the outside
Uneven structure is set on structure so that external force is first dispersed before reaching internal illumination pixel, reduce light emitting pixel by
Lead to a possibility that damaging to concentrated stress, while increasing the interstructural adhesiveness of layer, avoids the dystopy between layer structure, divides
From, further avoid display device functionalities failure.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model top light emitting display panel.
Specific embodiment
Problem is easily damaged when for the OLED display in traditional technology by external impact, such as display panel produces
The bad phenomenons such as raw blackspot, speck, variegation, through inventor's the study found that the reason of this problem occur is display panel
Under external force, the adhesiveness of display panel internal membrane interlayer is insufficient, and stress is excessively concentrated and can not be dispersed, so as to cause
Light emitting pixel damage.
To solve the above problems, uneven structure is arranged in inventor in the layer structure in corresponding display module structure,
Enhance interlayer adhesion force, and the shape of uneven structure is rationally set to disperse the destructive stress of applied external force generation.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with specific implementation
Mode, the present invention will be further described in detail.It should be appreciated that the specific embodiments described herein are only used to
It explains the utility model, is not used to limit the utility model.
It should be pointed out that "upper" indicated herein, "lower", be by film layer it is overlapping when it is upper and lower on the basis of；Also
It is to say, in the manufacture craft of display panel, film layer is to overlap to be formed one by one in layer, then is considered as in the film layer of rear formation
Positioned at " top/upper layer " of the film layer being previously formed；Accordingly, the film layer being previously formed is considered as positioned at the film in rear formation
" lower section/lower layer " of layer
Fig. 1 is the schematic diagram of the utility model top light emitting display panel.As shown in Figure 1, top light emitting display panel or abbreviation
Display panel, including array substrate (not shown), luminescence unit 400 and pixel confining layer 500, luminescence unit 400
It is arranged in array substrate, pixel confining layer 500 is formed in array substrate and has to accommodate the several of luminescence unit 400
Pit.
Array substrate can be TFT (thin film transistor (TFT)) substrate, since thin film transistor (TFT) has complicated layer structure,
Its upper surface is not flat, and in some embodiments, planarization layer, 500 shape of pixel confining layer are additionally provided in array substrate
At on planarization layer.There are pit, also referred to as pixel accommodating chamber in pixel confining layer 500, luminescence unit 400 is accommodated by pixel
The part that chamber accommodates is known as light emitting pixel, and the shape of pixel accommodating chamber can be the shapes such as prismoid shape, square, cuboid,
It is without limitation.
Top light emitting display panel further includes display module structure, and display module structure covers above-mentioned 500 He of pixel confining layer
Luminescence unit 400, including the first functional layer 100, adhesive layer 200 and the second functional layer 300 being cascading.Second function
Layer 300 is located at the top, that is, pushes up the top of light emitting display panel.Adhesive layer 200 is located at the first functional layer 100 and the second functional layer
Between 300, the effect of two layer structures of adherency is primarily served.In order to increase between the first functional layer 100 and the second functional layer 300
Adhesion strength, weaken the downward conduction of the applied external force that is subject to of the second functional layer 300, close to the second of adhesive layer 200
300 surface of functional layer has uneven structure 310, ties correspondingly, adhesive layer 200 has with the unevenness of the second functional layer 300
The surface that structure 310 matches.
Specifically, uneven structure 310 is located at the lower surface of the second functional layer 300, i.e., the second functional layer 300 is close to bonding
The one side of layer 200.Uneven structure 310 belongs to a part of the second functional layer 300, and at least partly protrudes or be depressed in second
The lower surface of functional layer 300.Adhesive layer 200 can soften and fill into the interval of uneven structure 310, to guarantee to bond
Fitting closely between layer 200 and the second functional layer 300.
The above-mentioned unevenness rough contact surface of 310 bring of structure increases the second functional layer 300 and adhesive layer 200
Between contact area, compared to traditional flat contact surface, interlayer adhesion force available enhancing therewith.Work as external force collision,
When especially horizontal force is acted on the light emitting display panel of top, what the second functional layer 300 can be intact is adhered to display surface
In the main structure of plate, damaged and dystopy will not be generated.Uneven structure 310 can change the direction of external force conduction simultaneously, will
The stress of a direction is separated into the stress in several directions, to prevent stress from concentrating, especially prevents stress from concentrating biography downwards
It is directed at the light emitting pixel of leading luminous function.
In some embodiments, adhesive layer 200 can be optical cement, including photosensitive resin.It is before curing using optical cement
Soften and solidify the small feature of after-contraction, can make adhesive layer 200 that there is 310 phase of uneven structure with the second functional layer 300
Matched surface, i.e. adhesive layer 200 and the second functional layer 300 fit closely.200 lower section of adhesive layer and the first functional layer 100 are viscous
It is attached, so that the first functional layer 100 and the second function 300 are firmly bonded by adhesive layer 200.Above-mentioned adhesive layer 200 also has
There is the characteristic of impact resistance and vibration resistance, the effect of absorbing external active force can be played, protects the luminous picture inside display panel
Element etc..
Uneven structure 310 is arranged in uniform intervals in one of the embodiments,.If uneven structure 310 can be
Dry protrusion, recess or two have concurrently.As shown in Figure 1, when uneven structure includes several protrusions, between uniform between protrusion and protrusion
Every arrangement.It is similar, when uneven structure includes the combination of several recess or several recess and protrusion, then it is recessed, protrusion
Spacing each other is also identical.The function that the whole display effect of display panel depends on all light emitting pixels is intact,
There is damaging the display effect that all can greatly reduce display panel in any light emitting pixel, and uniformly distributed uneven structure 310 guarantees
The layer structure of any forced position can receive protection, to improve the stability of top light emitting display panel.
Uneven structure 310 has the section perpendicular to the first functional layer 100 in one of the embodiments, i.e., vertically
In uneven 310 lower section of structure by the section of the layer structure of power conduction, section both ends are respectively big far from adhesive layer 200
The small end at end and close adhesive layer 200.The section of uneven structure 310 is in a shape of big-top and small-bottom, and the big end of the top is relatively leaned on
The outside of nearly top light emitting display panel, and the lowermost small end is to display panel internal stretch.When the second functional layer 300 is by outer
When power, the side wall that stress can be passed through uneven structure 310 by up big and down small uneven structure 310 disperses to different directions.
Side wall can have various shapes, may include protrusion and groove.
Specifically, when side wall of the stress in uneven structure 310, inclined side wall can by straight down,
To lower section light emitting pixel have threaten Force decomposition be other directions multiple active forces, thus mitigate conduct downwards answer
Power protects light emitting pixel.It is contemplated that if uneven 310 respective cross-section of structure has down big up small both ends, it is uneven
Effective coverage of the structure 310 in the second functional layer 300 is smaller, and external active force is easy to act on uneven structure 310
Between compartment.If uneven 310 respective cross-section of structure has upper and lower identical both ends, whole cross section is in shapes such as rectangles
Shape, then stress can not be dispersed by the side wall of uneven structure 310 to different directions.
In order to further enhance under external force to the protecting effect of display panel display function, one embodiment wherein
In, above-mentioned section is in inverted trapezoidal or up-side down triangle.As shown in Figure 1, up-side down triangle has section wide at the top and narrow at the bottom, to guarantee
The topside area of uneven structure 310 is greater than bottom area, increases the sphere of action of uneven structure 310, enhances respective layer knot
The adhesion strength of each position of structure.Side wall is in smooth ramped shaped, so that effect force resolution direction and size are relatively regular, after decomposition
Power can cancel out each other between multiple uneven structures 310, while preventing conduction orientation and being pointing directly at light emitting pixel
Stress.Similar, section can be in inverted trapezoidal.It is not limited to above two shape, as long as principle is similar, plays the phase of same purpose
As cross sectional shape belong to above-mentioned design, if lower end wedge angle or side are the class up-side down triangles of cambered surface.
The spacing of adjacent uneven structure 310 is that the big end in uneven 310 section of structure is wide in one of the embodiments,
Twice of degree.Specifically, uneven structure 310 is in be evenly spaced in the second functional layer 300, two adjacent unevennesses
Interval between structure 310 is greater than the big end width in above-mentioned section, is tested repeatedly, the spacing of uneven structure 310 is its section
At twice of face big end width, applied external force is minimum to the destruction of display panel.In order to enhance the second functional layer 300 and bonding
Adhesive attraction between layer 200, distribution of the uneven structure 310 in the second functional layer 300, which can be, to be spaced apart, can also be with
It is to be close to each other continuously distributed, but is spaced apart that effect is preferable, the spacing of especially adjacent uneven structure 310 is uneven
Twice of the big end width in 310 section of structure.It should be noted that twice of this numerical value is obtained by laboratory test, and by
It is limited to the production technology of actual product, the spacing of uneven structure 310 can be slightly larger than or be slightly less than the big end width in section
Twice.
The first functional layer 100 is touch panel in one of the embodiments, and the second functional layer 300 is cover board.Cover board position
In the outermost of display panel, direct protective effect is played to display panel.Cover board can be flexible cover plate, be also possible to hard
Property cover board, be correspondingly arranged according to the characteristic of the bending performance demand of OLED device and other layer of structure.
General display panel when by external impacts, suffered external force often from the display panel above cover board outside,
And it is conducted inside the display panel to cover board by cover board.The hardness of enhancing cover board prevent it damaged or reduce deformation so that
Compressing deformation is not subjected to inside display panel, it is possible to reduce display panel bring due to applied external force is damaged.Flexible cover plate
It is made, can suitably be bent of flexible material, but is more fragile when by the external force such as directly hit.Rigid cover board can
To reduce external impact force, but it is unable to satisfy the manufacture demand of flexible display panels.
Touch panel includes the layer of polarizer set gradually and protective film layer (not shown), and protective film layer is covered on partially
It plays a protective role on mating plate layer.Layer of polarizer is used for reflection environment light, so that the display content of display panel will not be done
It disturbs.Protective film layer has high wear resistance and certain corrosion resistance, influences it for protecting layer of polarizer not generate scratching
Function.As a preferred embodiment, protective film layer can be polyester film.
The first functional layer 100, adhesive layer 200 and the second functional layer 300 being cascading collectively constitute display panel
Display module structure, to protect and enhance the display function of display panel.Display module knot in one of the embodiments,
Uneven structure 310 in structure is correspondingly arranged with the pixel confining layer 500 below display module structure.Specifically, such as Fig. 1 institute
Show, some pixel confining layer 500 being between luminescence unit 400 is corresponded to below a uneven structure 310, at other
In embodiment, two or more 310 lower sections of unevenness structure can also correspond to some pixel being between luminescence unit 400
Confining layers 500.And correspondingly, the compartment of uneven structure 310 is correspondingly arranged luminescence unit 400.Due to pixel confining layer
500 other than limiting the position of luminescence unit 400, also acts as and provides the effect of buffering, protection light emitting pixel, then it corresponds to stress
The uneven structure 310 more concentrated is arranged, and can effectively weaken damage of the external force to light emitting pixel.In other words, uneven knot
The compartment of structure 310 is correspondingly arranged luminescence unit 400, can prevent stress from concentrating at luminescence unit 400, directly damage
The illumination effect of display panel.
Uneven structure 310 falls completely within pixel in the projection of pixel confining layer 500 and limits in one of the embodiments,
Layer 500.I.e. uneven structure 310 is correspondingly arranged with pixel confining layer 500, meanwhile, the cross-sectional area of uneven structure 310 is less than
The area of 500 uppermost surface of pixel confining layer of corresponding part.Specifically, when the corresponding phase of certain one part of pixel confining layers 500
When the uneven structure 310 answered, this uneven structure 310 is downwards in the projection of 500 upper surface of pixel confining layer, completely
On upper surface in pixel confining layer 500.When certain one part of pixel confining layers 500 has corresponded to multiple uneven structures 310,
Multiple projections of multiple unevenness structures 310 are all completely on the upper surface of pixel confining layer 500.In this way, uneven structure
The surface of luminescence unit 400 is avoided in 310 Stress decomposition region completely, is maximized and is reduced stress to the straight of luminescence unit 400
Influence is connect, ensure that the illumination effect of display panel.
Correspondingly, the present invention also provides a kind of display device, including the above-mentioned display panel referred to.Display device can be with
For tablet computer, the electronic equipments such as mobile phone.
In conclusion the display module structure and its top light emitting display panel and display device of the utility model, pass through
Uneven structure is arranged in layer structure on the outside to be reduced so that external force is first dispersed before reaching internal illumination pixel
Light emitting pixel is led to a possibility that damage by concentrated stress, while increasing the interstructural adhesiveness of layer, avoid layer structure it
Between dystopy, separation, further avoid display device functionalities failure.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of display module structure, which is characterized in that including be cascading the first functional layer (100), adhesive layer
(200) and the second functional layer (300), the adhesive layer adhere to first functional layer and second functional layer, close to described
Second function layer surface of adhesive layer has uneven structure (310), and the adhesive layer has with second functional layer not
The surface that flat structures match.
2. display module structure according to claim 1, which is characterized in that between the unevenness structure (310) is in uniform
Every arrangement.
3. display module structure according to claim 2, which is characterized in that the unevenness structure (310) has vertical
In the section of first functional layer (100), section both ends are respectively big end far from the adhesive layer (200) and close to described
The small end of adhesive layer.
4. display module structure according to claim 3, which is characterized in that the section is in inverted trapezoidal or up-side down triangle.
5. display module structure according to claim 3, which is characterized in that between the adjacent uneven structure (310)
Away from being twice of the section big end width.
6. display module structure according to any one of claims 1 to 5, which is characterized in that first functional layer
It (100) is touch panel, the second functional layer (300) is cover board.
7. a kind of top light emitting display panel, which is characterized in that including display module structure described in any one of claim 1 to 5.
8. top light emitting display panel according to claim 7, which is characterized in that further include several luminescence units (400) with
And the pixel confining layer (500) between the luminescence unit, the unevenness structure (310) and the pixel confining layer pair
It should be arranged.
9. top light emitting display panel according to claim 8, which is characterized in that the unevenness structure (310) is described
The projection of pixel confining layer (500) falls completely within the pixel confining layer.
10. a kind of display device, which is characterized in that including the described in any item top light emitting display panels of claim 7 to 9.
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| CN201821251676.8U CN208622776U (en) | 2018-08-03 | 2018-08-03 | A kind of display module structure and its top light emitting display panel and display device |
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| CN201821251676.8U CN208622776U (en) | 2018-08-03 | 2018-08-03 | A kind of display module structure and its top light emitting display panel and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752295A (en) * | 2019-11-29 | 2020-02-04 | 武汉天马微电子有限公司 | Flexible display panel, manufacturing method thereof and display device |
| CN113066806A (en) * | 2021-03-24 | 2021-07-02 | 上海天马有机发光显示技术有限公司 | Display panel, manufacturing method thereof and display device |
| CN114639310A (en) * | 2022-03-11 | 2022-06-17 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
-
2018
- 2018-08-03 CN CN201821251676.8U patent/CN208622776U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752295A (en) * | 2019-11-29 | 2020-02-04 | 武汉天马微电子有限公司 | Flexible display panel, manufacturing method thereof and display device |
| CN110752295B (en) * | 2019-11-29 | 2023-04-28 | 武汉天马微电子有限公司 | Flexible display panel, manufacturing method thereof and display device |
| CN113066806A (en) * | 2021-03-24 | 2021-07-02 | 上海天马有机发光显示技术有限公司 | Display panel, manufacturing method thereof and display device |
| CN113066806B (en) * | 2021-03-24 | 2024-03-22 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN114639310A (en) * | 2022-03-11 | 2022-06-17 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
| CN114639310B (en) * | 2022-03-11 | 2024-02-20 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of utility model: Display module assembly structure and top emission display panel and display device thereof Granted publication date: 20190319 License type: Common License Record date: 20191030 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191213 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Patentee after: Guangzhou Guoxian Technology Co., Ltd Address before: 065500 Hebei Langfang County Guan emerging industry demonstration area Patentee before: The valley (Guan) Technology Co. Ltd. |
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| TR01 | Transfer of patent right |