WO2021027058A1 - 柔性显示面板 - Google Patents

柔性显示面板 Download PDF

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Publication number
WO2021027058A1
WO2021027058A1 PCT/CN2019/111995 CN2019111995W WO2021027058A1 WO 2021027058 A1 WO2021027058 A1 WO 2021027058A1 CN 2019111995 W CN2019111995 W CN 2019111995W WO 2021027058 A1 WO2021027058 A1 WO 2021027058A1
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WO
WIPO (PCT)
Prior art keywords
display panel
protective cover
section
flexible display
bending area
Prior art date
Application number
PCT/CN2019/111995
Other languages
English (en)
French (fr)
Inventor
王芳
Original Assignee
武汉华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/638,755 priority Critical patent/US11395425B2/en
Publication of WO2021027058A1 publication Critical patent/WO2021027058A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units

Definitions

  • the present disclosure relates to the field of display technology, in particular to a flexible display panel.
  • Flexible display technology has attracted market attention because it can make products into a bendable form.
  • the flexible display panel using flexible display technology can be bent into a small-area screen when stored, and can be expanded into a large-area screen when in use, so as to switch between large and small screens.
  • the traditional glass protective cover is no longer adequate, and flexible organic materials must be used as the cover window of the outermost layer of the flexible display panel.
  • this kind of flexible protective cover increases the bending performance of the flexible display panel, it reduces the ability of the flexible display panel to resist external impacts and scratches. As a result, the flexible display panel has the risk of functional failure due to collision or fall. .
  • the purpose of the present disclosure is to provide a flexible display panel that has both good bending performance and ability to resist external impacts and scratches.
  • the present disclosure provides a flexible display panel, which is defined with a bending area and a non-bending area, wherein the flexible display panel includes: a display element layer including a first surface and a second surface opposite to each other; and a protective cover Plate, arranged on the first surface of the display element layer, wherein the protective cover plate includes a first section corresponding to the bending area and a second section corresponding to the non-bending area, and the first section One section includes a plurality of first subsections and a plurality of second subsections arranged in a staggered manner, wherein the plurality of first subsections of the first section are made of a flexible material, and the first section The plurality of second sub-sections and the second section are made of rigid materials; and a back plate is provided on the second surface of the display element layer, wherein the back plate is composed of a plurality of An organic material and a plurality of second organic materials are arranged alternately with each other, and the Young's modulus of the second organic material
  • the width of the first section of the protective cover is between 1 and 1.5 cm, and the width of one of the first sub-sections is less than or equal to 1 mm, And the width of one of the second sub-sections is between 1 and 2 millimeters.
  • the second organic material is located in the non-bending area of the flexible display panel and adjacent to the bending area.
  • the present disclosure also provides a flexible display panel, the flexible display panel is defined with a bending area and a non-bending area, and the flexible display panel includes: a display element layer including opposite first and second surfaces; protection The cover plate is arranged on the first surface of the display element layer, wherein the protective cover plate includes a first section corresponding to the bending area and a second section corresponding to the non-bending area, and the The first section includes a plurality of first subsections and a plurality of second subsections arranged in a staggered manner, wherein the plurality of first subsections of the first section are made of a flexible material, and the first The plurality of second sub-sections and the second section of the segment are made of a rigid material; and a back plate is provided on the second surface of the display element layer.
  • the display element layer, the protective cover, and the back plate are stacked on each other along a first direction, and the plurality of first sub-layers of the protective cover The sections and the plurality of second sub-sections are staggered with each other along a second direction, wherein the first direction is perpendicular to the second direction.
  • the width of the first section of the protective cover is between 1 and 1.5 cm, and the width of one of the first sub-sections is less than or equal to 1 mm, And the width of one of the second sub-sections is between 1 and 2 millimeters.
  • the back plate is composed of a plurality of first organic materials and a plurality of second organic materials arranged alternately with each other, and the Young's modulus of the second organic material is lower than that of the first organic material. Yang's modulus of organic materials.
  • the second organic material is located in the non-bending area of the flexible display panel and adjacent to the bending area.
  • the present disclosure also provides a flexible display panel, the flexible display panel is defined with a bending area and a non-bending area, and the flexible display panel includes: a display element layer including opposite first and second surfaces; protection A cover plate arranged on the first surface of the display element layer; and a back plate arranged on the second surface of the display element layer, wherein the back plate is made of a plurality of first organic materials and a plurality of The two second organic materials are arranged alternately with each other, and the Young's modulus of the second organic material is lower than the Young's modulus of the first organic material.
  • the second organic material is located in the non-bending area of the flexible display panel and adjacent to the bending area.
  • the display element layer, the protective cover plate, and the back plate are stacked on each other along a first direction, and the plurality of first organic layers of the protective cover plate The material and the plurality of second organic materials are staggered with each other along a second direction, wherein the first direction is perpendicular to the second direction.
  • the protective cover includes a first section corresponding to the bending area and a second section corresponding to the non-bending area, and the first section includes staggered multiple A first subsection and a plurality of second subsections, wherein the plurality of first subsections of the first section are composed of a flexible material, and the plurality of second subsections of the first section The subsection and the second section are made of rigid material.
  • the width of the first section of the protective cover is between 1 and 1.5 cm, and the width of one of the first sub-sections is less than or equal to 1 mm, And the width of one of the second sub-sections is between 1 and 2 millimeters.
  • the present disclosure provides a protective cover and a back plate with a multi-segment design above and below the display element layer, so that the protective cover and the back plate are better reflected in the bending area of the flexible display panel.
  • FIG. 1 shows a schematic diagram of a flexible display panel according to the first preferred embodiment of the present disclosure.
  • FIG. 2 shows a schematic diagram of a flexible display panel according to a second preferred embodiment of the present disclosure.
  • FIG. 1 shows a schematic diagram of the flexible display panel 10 according to the first preferred embodiment of the present disclosure.
  • the flexible display panel 10 is suitable for bendable devices, such as mobile phones, tablets, and computer display screens.
  • the flexible display panel 10 is defined with a bending area 101 and a pair of non-bending areas 102.
  • the pair of non-bending areas 102 respectively serve as the main display screen and the sub-display screen of the flexible display panel 10, and opposite ends of the bending area 101 are respectively connected to the main display screen and the sub-display screen.
  • the pair of non-bending areas 102 of the flexible display panel 10 can be set in a parallel unfolded state, or set in a folded state superimposed on each other, so as to realize the conversion of different display sizes. .
  • the flexible display panel 10 includes a display element layer 11, a protective cover 12, a back plate 13, a flat layer 14, and a support layer 15.
  • the display element layer 11 includes a first surface S1 and a second surface S2 opposite to each other.
  • the display element layer 11 can display terminal data information (such as images, text, etc.) on the first surface S1.
  • the display element layer 11 includes thin film transistors, transparent electrodes, organic light-emitting materials, metal electrodes, encapsulation layers, and the like.
  • the display element layer 11 further includes a touch layer 112 and a polarizer 113.
  • the touch layer 112 is used to receive input instructions from the user, and control and implement corresponding display of the flexible display panel 10 according to the instructions.
  • the polarizer 113 may be used to convert the light passing through the polarizer 113 into linearly polarized light in a specific polarization direction.
  • the protective cover 12 is disposed on the first surface S1 of the display element layer 11, and the back plate 13 is disposed on the second surface S2 of the display element layer 11.
  • the display element layer 11, the protective cover plate 12, and the back plate 13 are stacked on each other along the first direction X.
  • the protective cover 12 includes a first section 121 and a second section 122 staggered along the second direction Y, wherein the first direction X is perpendicular to the second direction Y.
  • the protective cover 12 includes a first section 121 and two second sections 122, where the first section 121 corresponds to the bending area 101 of the flexible display panel 10, and the two second sections 122 respectively correspond to the flexible A pair of non-bending areas 102 of the display panel 10. Furthermore, the first section 121 of the protective cover 12 includes a plurality of first subsections 123 and a plurality of second subsections 124, wherein the plurality of first subsections 123 and the plurality of second subsections 124 extend along Staggered to each other in the second direction Y.
  • the plurality of first sub-sections 123 of the first section 121 are made of flexible materials.
  • the flexible material is selected from organic materials with high elasticity and high viscosity.
  • the plurality of second sub-sections 124 and the second section 122 of the first section 121 are all made of rigid materials, such as glass, but not limited thereto. Therefore, in the present disclosure, the second section 122 of the protective cover 12 corresponding to the non-bending area 102 of the flexible display panel 10 is made of rigid materials, so that the protective cover 12 has good resistance to external impacts and scratches. ability.
  • the main function of the protective cover 12 is to protect the inner structure of the flexible display panel 10 (such as the display element layer 11) to a certain extent. Moreover, whether the flexible display panel 10 is folded inward (inwardly squeezed) or outwardly folded (outwardly stretched), the stress and deformation generated by the protective cover 12 are greater than the inner layer structure located in the middle. Therefore, in order to make the protective cover 12 have good bending performance and the ability to resist external impact and scratches, the protective cover 12 of the present disclosure adopts the above-mentioned multi-stage design, so that the protective cover 12 is in the bending area. 101 shows better bending performance and 102 shows better stiffness performance in the non-bending area.
  • the protective cover 12 can adopt different multi-segment designs, such as changing the spacing between each segment, the material of the segment, the position of the segment, etc., to achieve various The purpose of shape and bending form can be applied to flexible organic light emitting diode displays, liquid crystal displays, micro light emitting diode displays and other fields.
  • the width W2 of the first subsection 123 is set to be smaller than the second subsection 124 The width W3.
  • the width W1 of the first section 121 of the protective cover 12 is between 1 and 1.5 cm, and the width W2 of the first subsection 123 is less than or equal to 1 mm, and the width W1 of the second subsection 124 The width W3 is between 1 and 2 mm.
  • a flat layer 14 is provided on the protective cover 12.
  • the flat layer 14 is an anti-fingerprint nano-plated layer, and its thickness T1 is less than or equal to 100 nanometers.
  • the flat layer 14 covers the entire surface of the protective cover plate 12.
  • the flat layer 14 may be covered only on the first section 121 of the protective cover plate 12, namely The flat layer 14 is only provided at a position corresponding to the bending area 101 of the flexible display panel 10.
  • the back plate 13 is disposed on the second surface S2 of the display element layer 11.
  • the backplane 13 is located on the outer side of the flexible display panel 10, and the stress and the amount of deformation it bears is greater than the inner layer structure located in the middle. Therefore, the back plate 13 must also have good bending characteristics.
  • the back plate 13 is composed of a plurality of first organic materials 131 and a plurality of second organic materials 132 arranged alternately with each other, wherein the second organic material 132 is located in the non-bending area 102 of the flexible display panel 10 and is not The folding areas 101 are adjacent.
  • the Young's modulus of the second organic material 132 is lower than the Young's modulus of the first organic material 131.
  • the second organic material 132 with low modulus is softer than the first organic material 131 with high modulus, so that when the back plate 13 is bent, the second organic material 132 can effectively buffer the position close to the bending area 101 The stress it bears, and then reflects the best bending performance.
  • the width of the second organic material 132 of the back plate 13 is set to about 2 cm. However, the specific width can be adjusted according to the actual size of the flexible display panel 10, and is not limited thereto.
  • the support layer 15 is provided on one side of the back plate 13 to support the flexible display panel 10.
  • the material of the support layer 15 is metal.
  • FIG. 2 shows a schematic diagram of the flexible display panel 20 according to the second preferred embodiment of the present disclosure.
  • the flexible display panel 20 is suitable for bendable devices, such as mobile phones, tablets, and computer display screens.
  • the flexible display panel 20 defines a bending area 201 and a pair of non-bending areas 202.
  • the pair of non-bending areas 202 respectively serve as the main display screen and the sub-display screen of the flexible display panel 20, and opposite ends of the bending area 201 are respectively connected to the main display screen and the sub-display screen.
  • the pair of non-bending areas 202 of the flexible display panel 20 can be set in a parallel unfolded state, or set in a folded state superimposed on each other, so as to realize the conversion of different display sizes. .
  • the flexible display panel 20 includes a display element layer 21, a protective cover 22, a back plate 23, a flat layer 24, and a support layer 25.
  • the display element layer 21 includes a first surface S1 and a second surface S2 opposite to each other, wherein the display element layer 21 can display terminal data information (such as images, text, etc.) on the first surface S1.
  • the display element layer 21 includes thin film transistors, transparent electrodes, organic light-emitting materials, metal electrodes, encapsulation layers, and the like.
  • the flexible display panel 20 adopts new technologies such as non-polarizer and quantum dots, so the polarizer and touch layer in the traditional display panel can be omitted, thereby reducing the thickness of the flexible display panel 20 .
  • the protective cover 22 is disposed on the first surface S1 of the display element layer 21, and the back plate 23 is disposed on the second surface S2 of the display element layer 21.
  • the display element layer 21, the protective cover plate 22, and the back plate 23 are stacked on each other along the first direction X.
  • the protective cover 22 includes a first section 221 and a second section 222 staggered along the second direction Y, wherein the first direction X is perpendicular to the second direction Y.
  • the protective cover 22 includes a first section 221 and two second sections 222, where the first section 221 corresponds to the bending area 201 of the flexible display panel 20, and the two second sections 222 respectively correspond to the flexible A pair of non-bending areas 202 of the display panel 20. Furthermore, the first section 221 of the protective cover 22 includes a plurality of first subsections 223 and a plurality of second subsections 224, wherein the plurality of first subsections 223 and the plurality of second subsections 224 extend along Staggered to each other in the second direction Y. In the present disclosure, the plurality of first sub-sections 223 of the first section 221 are made of flexible materials.
  • the flexible material is selected from organic materials with high elasticity and high viscosity.
  • the plurality of second sub-sections 224 and the second section 222 of the first section 221 are all made of rigid materials, such as glass, but not limited thereto. Therefore, in the present disclosure, the second section 222 of the protective cover 22 corresponding to the non-bending area 202 of the flexible display panel 20 is made of rigid materials, so that the protective cover 22 has good resistance to external impact and scratch resistance. ability.
  • the main function of the protective cover 22 is to protect the inner structure of the flexible display panel 20 (such as the display element layer 21) to a certain extent. Moreover, no matter when the flexible display panel 20 is folded inward (inwardly squeezed) or outwardly folded (outwardly stretched), the stress and the generated deformation of the protective cover 22 are greater than those of the inner layer structure located in the middle. Therefore, in order to make the protective cover 22 have good bending performance and the ability to resist external impact and scratches, the protective cover 22 of the present disclosure adopts the above-mentioned multi-stage design, so that the protective cover 22 is in the bending area. 201 shows better bending performance and 202 shows better stiffness performance in the non-bending area.
  • the protective cover 22 can adopt different multi-segment designs, such as changing the spacing between each segment, the material of the segment, the position of the segment, etc., to achieve various The purpose of shape and bending form can be applied to flexible organic light emitting diode displays, liquid crystal displays, micro light emitting diode displays and other fields.
  • the width W2 of the first subsection 223 is set to be smaller than the second subsection 224 The width W3.
  • the width W1 of the first section 221 of the protective cover 22 is between 1 and 1.5 cm, and the width W2 of the first subsection 223 is less than or equal to 1 mm, and the width W1 of the second subsection 224 The width W3 is between 1 and 2 mm.
  • a flat layer 24 is provided on the protective cover 22.
  • the flat layer 24 is an anti-fingerprint nano-plated layer, and its thickness T1 is less than or equal to 100 nanometers.
  • the flat layer 24 covers the entire surface of the protective cover 22.
  • the flat layer 24 may be covered only on the first section 221 of the protective cover 22, namely The flat layer 24 is only provided at a position corresponding to the bending area 201 of the flexible display panel 20.
  • the back plate 23 is disposed on the second surface S2 of the display element layer 21.
  • the backplane 23 is located on the outer side of the flexible display panel 20, and the stress and the amount of deformation it bears is greater than the inner layer structure located in the middle. Therefore, the back plate 23 must also have good bending characteristics.
  • the back plate 23 is composed of a plurality of first organic materials 231 and a plurality of second organic materials 232 arranged alternately with each other, wherein the second organic materials 232 are located in the non-bending area 202 of the flexible display panel 20 and are not The folding areas 201 are adjacent. It should be noted that the Young's modulus of the second organic material 232 is lower than that of the first organic material 231.
  • the second organic material 232 with low modulus is more flexible than the first organic material 231 with high modulus, so that when the back plate 23 is bent, the second organic material 232 can effectively buffer the position close to the bending area 201 The stress it bears, and then reflects the best bending performance.
  • the width of the second organic material 232 of the back plate 23 is set to about 2 cm. However, the specific width can be adjusted according to the actual size of the flexible display panel 20, and is not limited thereto.
  • the support layer 25 is provided on one side of the back plate 23 to support the flexible display panel 20.
  • the material of the support layer 25 is metal.
  • a protective cover and a back plate with a multi-segment design are respectively arranged above and below the display element layer, so that the protective cover and the back plate have a better performance in the bending area of the flexible display panel. Bending performance, and better stiffness performance in the non-bending area of the flexible display panel.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种柔性显示面板（10，20），包含：显示元件层（11，21）、保护盖板（12，22）、以及背板（13，23）。保护盖板（12，22）和背板（13，23）分别设置在显示元件层（11，21）的相对两面。保护盖板（12，22）包含对应弯折区（101，201）的第一段（121，221）和对应非弯折区（102，202）的第二段（122，222）。第一段（121，221）包含交错排列的多个第一子区段（123，223）和多个第二子区段（124，224）。第一段（121，221）的多个第一子区段（123，223）是由柔性材料构成，以及第一段（121，221）的多个第二子区段（124，224）和第二段（122，222）是由刚性材料构成。通过设置具有多段式设计的保护盖板（12，22），使得保护盖板（12，22）能对应体现出更好的弯折性能和硬度表现。

Description

柔性显示面板 技术领域
本揭示涉及显示技术领域，特别是涉及一种柔性显示面板。
 背景技术
柔性显示技术因可将产品制作成可弯折形态而备受市场关注。使用柔性显示技术的柔性显示面板在存放时可被弯折成小面积的屏幕，并且在使用时可被展开成大面积的屏幕，从而实现大、小屏幕的切换。然而，为了满足这种弯折性能，传统的玻璃保护盖板已不敷使用，必须采用柔性的有机材料作为柔性显示面板最外层的保护盖板（cover window）。这种柔性保护盖板虽然增加了柔性显示面板的弯折性能，但却降低了柔性显示面板抵御外部冲击和抗刮擦的能力，如此造成柔性显示面板存在因碰撞或坠落而导致功能失效的风险。
有鉴于此，有必要提出一种柔性显示面板，以解决现有技术中存在的问题。
 技术问题
为解决上述现有技术的问题，本揭示的目的在于提供一种柔性显示面板，其兼具良好的弯折性能和抵抗外部冲击及刮擦等的能力。
 技术解决方案
为达成上述目的，本揭示提供一种柔性显示面板，定义有弯折区和非弯折区，其中所述柔性显示面板包含：显示元件层，包含相对的第一面和第二面；保护盖板，设置在所述显示元件层的所述第一面，其中所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成；以及背板，设置在所述显示元件层的所述第二面，其中所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量；其中所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一子区段和所述多个第二子区段沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
本揭示其中之一优选实施例中，所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
本揭示其中之一优选实施例中，所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
本揭示还提供一种柔性显示面板，所述柔性显示面板定义有弯折区和非弯折区，且所述柔性显示面板包含：显示元件层，包含相对的第一面和第二面；保护盖板，设置在所述显示元件层的所述第一面，其中所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成；以及背板，设置在所述显示元件层的所述第二面。
本揭示其中之一优选实施例中，所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一子区段和所述多个第二子区段沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
本揭示其中之一优选实施例中，所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
本揭示其中之一优选实施例中，所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量。
本揭示其中之一优选实施例中，所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
本揭示还提供一种柔性显示面板，所述柔性显示面板定义有弯折区和非弯折区，且所述柔性显示面板包含：显示元件层，包含相对的第一面和第二面；保护盖板，设置在所述显示元件层的所述第一面；以及背板，设置在所述显示元件层的所述第二面，其中所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量。
本揭示其中之一优选实施例中，所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
本揭示其中之一优选实施例中，所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一有机材料和所述多个第二有机材料沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
本揭示其中之一优选实施例中，所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成。
本揭示其中之一优选实施例中，所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
 有益效果
相较于先前技术，本揭示通过在显示元件层的上方和下方分别设置具有多段式设计的保护盖板和背板，使得保护盖板和背板在柔性显示面板的弯折区体现出更好的弯折性能，并且在柔性显示面板的非弯折区体现出更好的硬度表现等。
 附图说明
图1显示本揭示第一优选实施例的柔性显示面板的示意图。
图2显示本揭示第二优选实施例的柔性显示面板的示意图。
 本发明的实施方式
为了让本揭示的上述及其他目的、特征、优点能更明显易懂，下文将特举本揭示优选实施例，并配合所附图式，作详细说明如下。
请参照图1，其显示本揭示第一优选实施例的柔性显示面板10的示意图。柔性显示面板10适用于可弯折的装置，例如手机、平板、计算机的显示屏等。柔性显示面板10定义有弯折区101和一对非弯折区102。优选地，所述一对非弯折区102分别作为柔性显示面板10的主显示屏和副显示屏，且弯折区101的相对两端分别衔接所述主显示屏和所述副显示屏。通过弯折区101的弯折操作，可将柔性显示面板10的一对非弯折区102设置为彼此并列的展开状态，或者是设置为彼此叠置的折叠状态，从而实现不同显示尺寸的转换。
如图1所示，柔性显示面板10包含显示元件层11、保护盖板12、背板13、平坦层14、和支撑层15。显示元件层11包含相对的第一面S1和第二面S2，其中显示元件层11可将终端数据信息（例如图像、文字等）显示在第一面S1。可选地，显示元件层11包括薄膜晶体管、透明电极、有机发光材料、金属电极、封装层等。在本揭示的第一优选实施例中，显示元件层11还包含触控层112和偏光片113。触控层112用于接收用户的输入指令，并且根据指令控制且实现柔性显示面板10的对应显示。偏光片113可用于将穿过偏光片113的光转换为特定偏振方向的线偏振光。
如图1所示，保护盖板12设置在显示元件层11的第一面S1，以及背板13设置在显示元件层11的第二面S2。在本揭示中，显示元件层11、保护盖板12、和背板13沿着第一方向X彼此层叠设置。并且，保护盖板12包含沿着第二方向Y交错排列的第一段121和第二段122，其中第一方向X垂直第二方向Y。在本实施例中，保护盖板12包含一个第一段121和两个第二段122，其中第一段121对应柔性显示面板10的弯折区101，以及两个第二段122分别对应柔性显示面板10的一对非弯折区102。再者，保护盖板12的第一段121包含多个第一子区段123和多个第二子区段124，其中多个第一子区段123和多个第二子区段124沿着第二方向Y彼此交错排列。在本揭示中，第一段121的所述多个第一子区段123是由柔性材料构成。优选地，柔性材料是选自于具有高弹性和高黏性的有机材料。又，第一段121的所述多个第二子区段124和第二段122皆是由刚性材料构成，例如玻璃等，但不局限于此。因此，本揭示通过将对应柔性显示面板10的非弯折区102的保护盖板12的第二段122选用刚性材料制成，使得保护盖板12具有良好的抵抗外部冲击及抗刮擦等的能力。
在本揭示中，保护盖板12主要功能是用于对柔性显示面板10的内层结构（如显示元件层11）实现一定程度上的保护。并且，无论是当柔性显示面板10内折（向内挤压）还是外折（向外拉伸）时，保护盖板12所承受的应力和产生的形变量均大于位于中间的内层结构。因此，为了使保护盖板12兼具良好的弯折性能和抵抗外部冲击及刮擦等的能力，本揭示的保护盖板12采用上述的多段式设计，从而使保护盖板12在弯折区101体现出更好的弯折性能而在非弯折区102体现出更好的硬度表现等。另一方面，对应于不同的产品，保护盖板12可采用不同的多段式设计，例如改变每一分段之间的间距、分段的材料、分段的位置等等，以达到实现各种形状、弯折形式的目的，进而可应用于柔性有机发光二极管显示器、液晶显示器、微发光二极管显示器等领域。举例来说，如图1所示，为了使保护盖板12的第一段121和第二段122具有相近的光学特性，第一子区段123的宽度W2设置为小于第二子区段124的宽度W3。在一实施例中，保护盖板12的第一段121的宽度W1介于1至1.5公分之间，且第一子区段123的宽度W2小于等于1毫米，以及第二子区段124的宽度W3介于1至2毫米之间。
如图1所示，为了使保护盖板12的表面平整，保护盖板12上设置有平坦层14。优选地，平坦层14为抗指纹的纳米镀层，其厚度T1小于等于100纳米。在本实施例中，平坦层14是整面地覆盖在保护盖板12上，然而，在另一实施例中也可以将平坦层14仅覆盖在保护盖板12的第一段121上，即平坦层14仅设置在对应柔性显示面板10的弯折区101位置。
如图1所示，背板13设置在显示元件层11的第二面S2。相似地，背板13是位于柔性显示面板10的外侧，其所承受的应力和产生的形变量均大于位于中间的内层结构。因此，背板13也必须具备良好的弯折特性。在本揭示中，背板13是由多个第一有机材料131和多个第二有机材料132彼此交错排列构成，其中第二有机材料132位于柔性显示面板10的非弯折区102且与弯折区101相邻。应当注意的是，第二有机材料132的杨式模量低于第一有机材料131的杨式模量。低模量的第二有机材料132相较于高模量的第一有机材料131更为柔软，使得背板13在弯折时，第二有机材料132能有效地缓冲靠近弯折区101的位置所承受的应力，进而体现最佳的弯折性能。可选地，背板13的第二有机材料132的宽度设置为2公分左右，然而，具体宽度可根据柔性显示面板10实际尺寸调整，不局限于此。
如图1所示，支撑层15设置在背板13的一侧，用于起到对柔性显示面板10支撑的作用。优选地，支撑层15的材质为金属。
请参照图2，其显示本揭示第二优选实施例的柔性显示面板20的示意图。柔性显示面板20适用于可弯折的装置，例如手机、平板、计算机的显示屏等。柔性显示面板20定义有弯折区201和一对非弯折区202。优选地，所述一对非弯折区202分别作为柔性显示面板20的主显示屏和副显示屏，且弯折区201的相对两端分别衔接所述主显示屏和所述副显示屏。通过弯折区201的弯折操作，可将柔性显示面板20的一对非弯折区202设置为彼此并列的展开状态，或者是设置为彼此叠置的折叠状态，从而实现不同显示尺寸的转换。
如图2所示，柔性显示面板20包含显示元件层21、保护盖板22、背板23、平坦层24、和支撑层25。显示元件层21包含相对的第一面S1和第二面S2，其中显示元件层21可将终端数据信息（例如图像、文字等）显示在第一面S1。可选地，显示元件层21包括薄膜晶体管、透明电极、有机发光材料、金属电极、封装层等。在本揭示的第二优选实施例中，柔性显示面板20采用无偏光片及量子点等新技术，故可以省略传统显示面板中的偏光片及触控层，进而减薄柔性显示面板20的厚度。
如图2所示，保护盖板22设置在显示元件层21的第一面S1，以及背板23设置在显示元件层21的第二面S2。在本揭示中，显示元件层21、保护盖板22、和背板23沿着第一方向X彼此层叠设置。并且，保护盖板22包含沿着第二方向Y交错排列的第一段221和第二段222，其中第一方向X垂直第二方向Y。在本实施例中，保护盖板22包含一个第一段221和两个第二段222，其中第一段221对应柔性显示面板20的弯折区201，以及两个第二段222分别对应柔性显示面板20的一对非弯折区202。再者，保护盖板22的第一段221包含多个第一子区段223和多个第二子区段224，其中多个第一子区段223和多个第二子区段224沿着第二方向Y彼此交错排列。在本揭示中，第一段221的所述多个第一子区段223是由柔性材料构成。优选地，柔性材料是选自于具有高弹性和高黏性的有机材料。又，第一段221的所述多个第二子区段224和第二段222皆是由刚性材料构成，例如玻璃等，但不局限于此。因此，本揭示通过将对应柔性显示面板20的非弯折区202的保护盖板22的第二段222选用刚性材料制成，使得保护盖板22具有良好的抵抗外部冲击及抗刮擦等的能力。
在本揭示中，保护盖板22主要功能是用于对柔性显示面板20的内层结构（如显示元件层21）实现一定程度上的保护。并且，无论是当柔性显示面板20内折（向内挤压）还是外折（向外拉伸）时，保护盖板22所承受的应力和产生的形变量均大于位于中间的内层结构。因此，为了使保护盖板22兼具良好的弯折性能和抵抗外部冲击及刮擦等的能力，本揭示的保护盖板22采用上述的多段式设计，从而使保护盖板22在弯折区201体现出更好的弯折性能而在非弯折区202体现出更好的硬度表现等。另一方面，对应于不同的产品，保护盖板22可采用不同的多段式设计，例如改变每一分段之间的间距、分段的材料、分段的位置等等，以达到实现各种形状、弯折形式的目的，进而可应用于柔性有机发光二极管显示器、液晶显示器、微发光二极管显示器等领域。举例来说，如图2所示，为了使保护盖板22的第一段221和第二段222具有相近的光学特性，第一子区段223的宽度W2设置为小于第二子区段224的宽度W3。在一实施例中，保护盖板22的第一段221的宽度W1介于1至1.5公分之间，且第一子区段223的宽度W2小于等于1毫米，以及第二子区段224的宽度W3介于1至2毫米之间。
如图2所示，为了使保护盖板22的表面平整，保护盖板22上设置有平坦层24。优选地，平坦层24为抗指纹的纳米镀层，其厚度T1小于等于100纳米。在本实施例中，平坦层24是整面地覆盖在保护盖板22上，然而，在另一实施例中也可以将平坦层24仅覆盖在保护盖板22的第一段221上，即平坦层24仅设置在对应柔性显示面板20的弯折区201位置。
如图2所示，背板23设置在显示元件层21的第二面S2。相似地，背板23是位于柔性显示面板20的外侧，其所承受的应力和产生的形变量均大于位于中间的内层结构。因此，背板23也必须具备良好的弯折特性。在本揭示中，背板23是由多个第一有机材料231和多个第二有机材料232彼此交错排列构成，其中第二有机材料232位于柔性显示面板20的非弯折区202且与弯折区201相邻。应当注意的是，第二有机材料232的杨式模量低于第一有机材料231的杨式模量。低模量的第二有机材料232相较于高模量的第一有机材料231更为柔软，使得背板23在弯折时，第二有机材料232能有效地缓冲靠近弯折区201的位置所承受的应力，进而体现最佳的弯折性能。可选地，背板23的第二有机材料232的宽度设置为2公分左右，然而，具体宽度可根据柔性显示面板20实际尺寸调整，不局限于此。
如图2所示，支撑层25设置在背板23的一侧，用于起到对柔性显示面板20支撑的作用。优选地，支撑层25的材质为金属。
综上所述，本揭示通过在显示元件层的上方和下方分别设置具有多段式设计的保护盖板和背板，使得保护盖板和背板在柔性显示面板的弯折区体现出更好的弯折性能，并且在柔性显示面板的非弯折区体现出更好的硬度表现等。
以上仅是本揭示的优选实施方式，应当指出，对于所属领域技术人员，在不脱离本揭示原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本揭示的保护范围。

Claims (13)

  1. 一种柔性显示面板，定义有弯折区和非弯折区，其中所述柔性显示面板包含：
    显示元件层，包含相对的第一面和第二面；
    保护盖板，设置在所述显示元件层的所述第一面，其中所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成；以及
    背板，设置在所述显示元件层的所述第二面，其中所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量；
    其中所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一子区段和所述多个第二子区段沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
  2. 如权利要求1的柔性显示面板，其中所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
  3. 如权利要求1的柔性显示面板，其中所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
  4. 一种柔性显示面板，定义有弯折区和非弯折区，其中所述柔性显示面板包含：
    显示元件层，包含相对的第一面和第二面；
    保护盖板，设置在所述显示元件层的所述第一面，其中所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成；以及
    背板，设置在所述显示元件层的所述第二面。
  5. 如权利要求4的柔性显示面板，其中所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一子区段和所述多个第二子区段沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
  6. 如权利要求4的柔性显示面板，其中所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
  7. 如权利要求4的柔性显示面板，其中所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量。
  8. 如权利要求4的柔性显示面板，其中所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
  9. 一种柔性显示面板，定义有弯折区和非弯折区，其中所述柔性显示面板包含：
    显示元件层，包含相对的第一面和第二面；
    保护盖板，设置在所述显示元件层的所述第一面；以及
    背板，设置在所述显示元件层的所述第二面，其中所述背板是由多个第一有机材料和多个第二有机材料彼此交错排列构成，并且所述第二有机材料的杨式模量低于所述第一有机材料的杨式模量。
  10. 如权利要求9的柔性显示面板，其中所述第二有机材料位于所述柔性显示面板的所述非弯折区且与所述弯折区相邻。
  11. 如权利要求9的柔性显示面板，其中所述显示元件层、所述保护盖板、和所述背板沿着第一方向彼此层叠设置，以及所述保护盖板的所述多个第一有机材料和所述多个第二有机材料沿着第二方向彼此交错排列，其中所述第一方向垂直所述第二方向。
  12. 如权利要求9的柔性显示面板，其中所述保护盖板包含对应所述弯折区的第一段和对应所述非弯折区的第二段，并且所述第一段包含交错排列的多个第一子区段和多个第二子区段，其中所述第一段的所述多个第一子区段是由柔性材料构成，以及所述第一段的所述多个第二子区段和所述第二段是由刚性材料构成。
  13. 如权利要求12的柔性显示面板，其中所述保护盖板的所述第一段的宽度介于1至1.5公分之间，且其中之一所述第一子区段的宽度小于等于1毫米，以及其中之一所述第二子区段的宽度介于1至2毫米之间。
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