CN109884831A - Reflection type display device, display panel and its manufacturing method - Google Patents
Reflection type display device, display panel and its manufacturing method Download PDFInfo
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- CN109884831A CN109884831A CN201910167612.2A CN201910167612A CN109884831A CN 109884831 A CN109884831 A CN 109884831A CN 201910167612 A CN201910167612 A CN 201910167612A CN 109884831 A CN109884831 A CN 109884831A
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Abstract
The invention discloses a kind of reflection type display device, display panel and its manufacturing method, the display panel, comprising: array substrate further comprises: the figure concave/convex formed in the array substrate, and the reflecting layer being covered on the figure；Wherein, the figure includes the centrosymmetric image that number of edges is greater than 4.Using the present invention reflectivity of all directions can be made uniform, avoid because the reflectivity of all directions it is inhomogenous caused by show flicker problem.
Description
Technical field
The present invention relates to field of display technology, a kind of reflection type display device, display panel and its manufacturer are particularly related to
Method.
Background technique
Reflective display technology, as (electrochromism is aobvious by reflective liquid-crystal display (LCD), electric ink (E-ink), ECD
Show) and the display technologies such as Mirasol, since its outdoor readable is good, the advantages such as low-power consumption are more next in wearable display field
More attract attention.
Reflective display utilizes the light by mirror-reflection by utilizing baffle reflection external incident light (peripheral light)
Line screen illuminating, without backlight.Therefore, reduce the power consumption for backlight, and use transmission display unit
Mobile device compare, the driving of the mobile device of reflective display is up to the longer time.In addition, because backlight is not required
, therefore correspondingly reduced the weight and size of display device.Moreover, the light after reflection has filtered out a large amount of high energy
The strong spectrum of penetrability is measured, because the strong light of energy high-penetration does not reflect substantially, the light after reflection is to eyes
All be it is harmless, play the effect of eyeshield.
In reflective display, in order to be shown using exterior light, need in a display device to include having to dissipate
Penetrate the scattering film layer of function.In order to reduce cost, increase setting convex-concave pattern (Bump) technique in array substrate at present, simultaneously
Reflecting layer is added to replace traditional scattering film in upper layer.
However, in practical applications, it was found by the inventors of the present invention that there are all directions for existing reflective display
Reflectivity it is inhomogenous caused by show flicker problem.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of reflection type display device, display panel and its manufacturing method,
Keep the reflectivity of all directions uniform, avoid because the reflectivity of all directions it is inhomogenous caused by show flicker problem.
A kind of display panel is provided based on the above-mentioned purpose present invention, comprising: array substrate further comprises:
The figure concave/convex formed in the array substrate, and the reflecting layer being covered on the figure；
Wherein, the figure includes the centrosymmetric image that number of edges is greater than 4.
Preferably, the centrosymmetric image is specially hexagon or circle.
Preferably, the figure further include:
Square at four corner inner sides of the pixel in the correspondence array substrate；Or
Inner chamfer shape at four corner inner sides of the pixel in the correspondence array substrate.
Preferably, the figure further include:
Strip at four edge inner sides of the pixel in the correspondence array substrate.
Wherein, a pixel position in the correspondence array substrate be densely covered with size dimension at least there are two types of it is more
A centrosymmetric image.
Preferably, in the correspondence array substrate data Data line and the position thin film transistor (TFT) TFT at not set figure
Shape.
The present invention also provides a kind of reflection type display devices, comprising: display panel as described above.
The present invention also provides a kind of manufacturing methods of display panel, comprising:
Figure concave/convex is formed in array substrate, wherein the figure includes the centrosymmetric image that number of edges is greater than 4；
Form the reflecting layer being covered on the figure.
It is the central symmetry figure that number of edges is greater than 4 by the graphic designs concave/convex in array substrate in technical solution of the present invention
Shape, for example, using hexagon or circular graphic designs, compared with the prior art in traditional rectangular, diamond shape figure, can protect
Demonstrate,prove display panel all directions reflectivity homogeneity it is more excellent, avoid because the reflectivity of all directions it is inhomogenous caused by show sudden strain of a muscle
Bright problem.
Further, in technical solution of the present invention, also on the inside of four corners of the pixel in the correspondence array substrate
Square or inner chamfer shape at position, this ensures that in a limited space increase the anti-of four direction up and down more
Penetrate rate.
Further, in technical solution of the present invention, while in order to reduce the coupled capacitor grown nonparasitically upon another plant (Cpd) to the shadow of product
It rings, and guarantees the data Data line and the insulation at the position thin film transistor (TFT) TFT, reliability after being powered in the array substrate
Energy；Therefore in the correspondence array substrate data Data line and the position thin film transistor (TFT) TFT at do not place Bump figure, can have
The mitigation of effect flashes.
Detailed description of the invention
Several Bump figures that Fig. 1 a~1c is used in the Bump technique for the reflective display of the prior art show
It is intended to；
Several Bump figures that Fig. 2 a~2c is used in the Bump technique for the reflective display of the prior art are micro-
Real scene shooting figure under mirror；
Fig. 3 is the position that the four direction of reflectance test is carried out to the display panel of the reflective display of the prior art
Set explanatory diagram；
Fig. 4 is the knot for carrying out reflectance test in four direction to the display panel of the reflective display of the prior art
Fruit schematic diagram；
Fig. 5 a is the display panel for the reflective display of the prior art in diagonal progress reflectivity survey
The schematic diagram of examination；
Fig. 5 b is the display panel for the reflective display of the prior art in diagonal progress reflectivity survey
The result schematic diagram of examination；
Fig. 6,7 is in array substrates in a kind of display panel of reflection type display device provided in an embodiment of the present invention
Bump pictorial diagram；
Fig. 8 is a kind of manufacturing method flow chart of display panel provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.Wording "and/or" used herein includes one or more associated
The whole for listing item or any cell and all combination.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
The present inventor carries out many experiments to existing reflective display, and analyzes experimental result: at present
It is designed in the Bump technique of reflective display in the presence of the Bump of several figures as shown in Fig. 1 a~1c, under the microscope
Real scene shooting figure respectively as shown in Fig. 2 a~2c.As can be seen from the figure there is certain direction in the figure under these three designs
Property, therefore the actual reflectivity of its display panel four direction is tested, the position description of the four direction of test is such as
Shown in Fig. 3, test results are shown in figure 4.
From the data of the above test result this it appears that due to figure difference, reflectivity of the product in four direction
Also there is larger difference, wherein reflectivity the larger value in Fig. 1 a design configuration is in L (left side) and R (right side) direction；And Fig. 2 a
Design configuration in reflectivity the larger value then in DP (downside) and DO (upside) direction；Fig. 3 a design configuration is partial to due to it
It is rectangular, so the reflectivity of four direction is relatively uniform, but since its feature size difference is more, therefore while its guarantee reflection
It is bigger than normal to will lead to its flicker value.
It is carried out for the design configuration of Fig. 1 a in diagonal for the relationship of further verification pattern and reflectivity
Reflectance test is as shown in Figure 5 a, and test result is as shown in Figure 5 b.
In Fig. 5 b, the side DP " after rotation " refers to light from the incidence of the side DP, the display panel of existing reflective display
Rotate clockwise 30 ° or so；Similar, the side DP " before rotation " then refers to light from the incidence of the side DP, existing reflective display
Display panel rotate 30 ° or so counterclockwise.
From the test result data of Fig. 5 b can be seen that display panel rotation after, the reflectivity of L, R, DP, DO four direction
Homogeneity is poor.
It is analyzed based on above-mentioned test and data, the inventors found that the reflectivity of display panel and its Bump work
There are direct relations for the figure designed in skill.
Therefore, in technical solution of the present invention, will be in the graphic designs concave/convex formed in array substrate in Bump technique
Number of edges is greater than 4 centrosymmetric image, for example, using hexagon or circular graphic designs, it is middle traditional compared with the prior art
Rectangular, diamond shape figure, can guarantee that the homogeneity of display panel all directions reflectivity is more excellent, avoid the reflection because of all directions
Flicker problem is shown caused by rate is inhomogenous.
Further, in technical solution of the present invention, also on the inside of four corners of the pixel in the correspondence array substrate
Square or inner chamfer shape at position, this ensures that in a limited space increase the anti-of four direction up and down more
Penetrate rate.
In addition, the present inventor is also contemplated that data Data line and thin film transistor (TFT) TFT in the array substrate
It is often laid with more cabling, via hole etc. at position, electric current will be generated after powered up；In order to guarantee these regions insulation,
Unfailing performance, and avoid generating the coupled capacitor (Cpd) for growing nonparasitically upon another plant to pixel region Pixel, these regions can not place Bump
Figure, so that these regions have maximum resin thickness, so as to effectively mitigate flashing.
Technical solution that the invention will now be described in detail with reference to the accompanying drawings.
Display panel in a kind of reflection type display device provided in an embodiment of the present invention, comprising: array substrate, described
The Bump figure formed in array substrate, and the reflecting layer being covered on the figure.
Wherein, the Bump figure formed in array substrate specifically can be recessed figure, be also possible to convex figure.
As shown in fig. 6, in display panel in a kind of reflection type display device provided in an embodiment of the present invention, in array base
The figure concave or convex formed on plate includes the centrosymmetric image that number of edges is greater than 4, for example, it may be hexagon or circle.This
Kind number of edges is greater than 4 centrosymmetric image, can guarantee that the reflectivity homogeneity of display panel all directions is more excellent, avoids because of each side
To reflectivity it is inhomogenous caused by show flicker problem.
Further, in the display panel in a kind of reflection type display device provided in an embodiment of the present invention, in array substrate
At the four corner inner sides that may also include that the pixel being placed in the corresponding array substrate in the Bump figure of upper formation
Square, wherein the size of four squares can be unanimously or inconsistent；Alternatively, as shown in fig. 7, the present invention is implemented
In the display panel in a kind of reflection type display device that example provides, can also it be wrapped in the Bump figure that is formed in array substrate
It includes: the inner chamfer shape being placed at four corner inner sides of the pixel in the corresponding array substrate, wherein being fallen in four
Angular size can be unanimously or inconsistent.More increases by four up and down in a limited space are ensured that in this way
The reflectivity in direction.
As shown in Figure 6,7, in the display panel in a kind of reflection type display device provided in an embodiment of the present invention, in array
It may also include that in the Bump figure formed on substrate and be placed on the inside of four edges of the pixel in the correspondence array substrate
The length of strip at position, strip can be as the length of a line of square.
Preferably, in order to make to correspond to the quantity of the Bump figure of a pixel position in the array substrate as far as possible
It maximizes, increases its reflectivity, in the display panel in a kind of reflection type display device provided in an embodiment of the present invention, in correspondence
Multiple number of edges that a pixel position in the array substrate is densely covered with size dimension at least two are greater than 4 central symmetry
Figure.Wherein, a kind of is standard-sized centrosymmetric image, for example, can be the centrosymmetric image that diameter is 11um,
Height can be 0.94um；If the figure is convex figure, the angle of the plane of outer wall and array substrate can be 9.7 °；Its
The centrosymmetric image of its smaller size, for example, can be the centrosymmetric image that diameter is 4um, height is then 0.34um,
The angle of the plane of its outer wall and array substrate is also possible to 9.7 °；The centrosymmetric image of smaller size can be used to the standard of filling
Region between the centrosymmetric image of size, to increase reflectivity.
Further, consider to reduce influence of the coupled capacitor (Cpd) grown nonparasitically upon another plant to product, and guarantee the array after being powered
The insulation at data Data line and the position thin film transistor (TFT) TFT in substrate, unfailing performance, therefore, the embodiment of the present invention provide
A kind of reflection type display device in display panel in, data Data line and film crystal in the correspondence array substrate
Pipe TFT does not place Bump figure at position, can effectively mitigate flashing.
A kind of manufacturing method of above-mentioned display panel provided in an embodiment of the present invention, process is as shown in figure 8, include following step
It is rapid:
Step S801: figure concave/convex is formed in array substrate.
Specifically, one layer of resin can be coated in array substrate, and then resin is carried out by Photo (photoetching) technique
Etching, forms Bump figure concave or convex；Being formed by figure includes centrosymmetric image of the number of edges greater than 4.The number of edges
Centrosymmetric image greater than 4 specifically can be hexagon, or be also possible to circle.How Photo technique is passed through in array
It forms Bump figure on substrate to be well known to those skilled in the art, details are not described herein again.
In addition, when forming centrosymmetric image of the number of edges greater than 4 by Photo technique, it can also be in the correspondence array
Square at four corner inner sides of the pixel in substrate, as shown in Figure 6；Alternatively, in the correspondence array substrate
Pixel four corner inner sides at inner chamfer shape it is as shown in Figure 7.
In addition, when forming centrosymmetric image of the number of edges greater than 4 by Photo technique, it can also be in the correspondence array
Strip at four edge inner sides of the pixel in substrate, as shown in Figure 6,7.
Preferably, in the array substrate data Data line and the position thin film transistor (TFT) TFT at can not place
Bump figure, that is to say, that when forming centrosymmetric image of the number of edges greater than 4 by Photo technique, in the correspondence array
It is not performed etching at data Data line and the position thin film transistor (TFT) TFT in substrate, so that in the corresponding array substrate
Resin at data Data line and the position thin film transistor (TFT) TFT has maximum gauge, thus in data Data line and film crystal
After pipe TFT is powered, guarantee insulation, the unfailing performance in these regions, also can avoid generating the coupling electricity for growing nonparasitically upon another plant to pixel region Pixel
Hold, so as to effectively mitigate flashing.
Step S802: the reflecting layer being covered on the figure is formed.
Existing method can be used in this step and form the reflecting layer being covered on concave-convex Bump figure, it is no longer superfluous herein
It states.
It is the central symmetry figure that number of edges is greater than 4 by the graphic designs concave/convex in array substrate in technical solution of the present invention
Shape, for example, using hexagon or circular graphic designs, compared with the prior art in traditional rectangular, diamond shape figure, can protect
Demonstrate,prove display panel all directions reflectivity homogeneity it is more excellent, avoid because the reflectivity of all directions it is inhomogenous caused by show sudden strain of a muscle
Bright problem.
Further, in technical solution of the present invention, also on the inside of four corners of the pixel in the correspondence array substrate
Square or inner chamfer shape at position, this ensures that in a limited space increase the anti-of four direction up and down more
Penetrate rate.
Further, in technical solution of the present invention, while in order to reduce the coupled capacitor grown nonparasitically upon another plant (Cpd) to the shadow of product
It rings, and guarantees the data Data line and the insulation at the position thin film transistor (TFT) TFT, reliability after being powered in the array substrate
Energy；Therefore in the correspondence array substrate data Data line and the position thin film transistor (TFT) TFT at do not place Bump figure, can have
The mitigation of effect flashes.
Those skilled in the art of the present technique have been appreciated that in the present invention the various operations crossed by discussion, method, in process
Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention
Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted.
Further, in the prior art to have and the step in various operations, method disclosed in the present invention, process, measure, scheme
It may also be alternated, changed, rearranged, decomposed, combined or deleted.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under thinking of the invention, above embodiments
Or can also be combined between the technical characteristic in different embodiments, step can be realized with random order, and be existed such as
Many other variations of the upper different aspect of the invention, for simplicity, they are not provided in details.Therefore, it is all
Within the spirit and principles in the present invention, any omission, modification, equivalent replacement, improvement for being made etc. be should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of display panel, comprising: array substrate, which is characterized in that further include:
The figure concave/convex formed in the array substrate, and the reflecting layer being covered on the figure；
Wherein, the figure includes the centrosymmetric image that number of edges is greater than 4.
2. display panel according to claim 1, which is characterized in that the centrosymmetric image is specially hexagon or circle
Shape.
3. display panel according to claim 2, which is characterized in that the figure further include:
Square at four corner inner sides of the pixel in the correspondence array substrate；Or
Inner chamfer shape at four corner inner sides of the pixel in the correspondence array substrate.
4. display panel according to claim 3, which is characterized in that the figure further include:
Strip at four edge inner sides of the pixel in the correspondence array substrate.
5. display panel according to claim 2, which is characterized in that a pixel position in the correspondence array substrate
The place of setting be densely covered with size dimension at least there are two types of multiple centrosymmetric images.
6. -6 any display panel according to claim 1, which is characterized in that the data in the correspondence array substrate
Not set figure at Data line and the position thin film transistor (TFT) TFT.
7. a kind of reflection type display device, comprising: the display panel as described in claim 1-6 is any.
8. a kind of manufacturing method of display panel characterized by comprising
Figure concave/convex is formed in array substrate, wherein the figure includes the centrosymmetric image that number of edges is greater than 4；
Form the reflecting layer being covered on the figure.
9. according to the method described in claim 8, it is characterized in that, the centrosymmetric image is specially hexagon or circle.
10. according to the method described in claim 9, it is characterized in that, the figure further include:
Square at four corner inner sides of the pixel in the correspondence array substrate；Or
Inner chamfer shape at four corner inner sides of the pixel in the correspondence array substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910167612.2A CN109884831A (en) | 2019-03-06 | 2019-03-06 | Reflection type display device, display panel and its manufacturing method |
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| CN201910167612.2A CN109884831A (en) | 2019-03-06 | 2019-03-06 | Reflection type display device, display panel and its manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805376A (en) * | 2021-02-19 | 2021-12-17 | 友达光电股份有限公司 | Bump structure and liquid crystal display |
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