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foldable display device

A technology of a display device and an elastic device, applied in the field of panel manufacturing, can solve problems such as irreparable display stripes, and achieve the effect of ensuring flatness

Active Publication Date: 2022-03-08
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a foldable display device to solve the irreparable display stripes generated after the existing foldable display device is bent

Method used

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Examples

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Embodiment 1

[0034] Embodiments of the present invention propose a foldable display device, such as figure 1 As shown, the foldable display device includes an outer frame 10 and a display panel disposed inside the outer frame 10; wherein, the foldable display device includes: a multi-layer film layer 20, a lubricating layer 30 and at least one set of elastic device 40.

[0035] figure 2 Shown is a film layer structure diagram of the unfolded state of the display panel in a foldable display device according to Embodiment 1 of the present invention. The shown display panel includes a supporting layer 105, a light emitting device layer 104, a polarizer layer 103, and a touch layer 102 stacked in sequence. , cover plate 101 and other film layer structures (not shown); the multilayer film layer 20 is selected from the support layer 105, the light emitting device layer 104, the polarizer layer 103, the touch layer 102 and at least two of the cover plates 101;

[0036] It can be understood th...

Embodiment 2

[0054] Figure 5 Shown is the film layer structure diagram of the unfolded state of the display panel in Embodiment 2 of the present invention, the foldable includes two sets of elastic devices 40, and each set of elastic devices 40 is connected to one side of the display panel; wherein , each group of elastic devices 40 includes a plurality of elastic devices 206, and the number of elastic devices 206 in each group of elastic devices 40 is the same as the number of film layers; it can be understood that in this embodiment, other The structure is the same as that of the specific embodiment 1, and will be described here one by one;

[0055] Such as Image 6 As shown, when the display panel is in the outward bending state, that is, the display panel is bent from the middle or a certain position of the display panel, or as Figure 7 As shown, when the two ends of the display panel are bent at the same time, under the premise that the elastic coefficients of the elastic members ...

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Abstract

The present invention proposes a foldable display device. The foldable display device includes at least two mold layers and an elastic device, and a lubricating layer with high optical transmittance is coated between two adjacent film layers; In the present invention, a lubricating layer is arranged between the film layers to reduce the friction between the film layers, and an elastic device is used to apply a traction force to each film layer and a coordinated deformation between the film layers, so that the film layers are deformed during the bending process. Sufficient relative slip can occur in the film, which ensures the flatness of the film structure; in addition, each film layer is subjected to a stress test separately, which effectively shortens the development cycle of the flexible OLED module.

Description

technical field [0001] The invention relates to the field of panel manufacturing, in particular to a foldable display device. Background technique [0002] LCD (Liquid crystal displays, liquid crystal display) is a widely used flat panel display, which mainly realizes picture display by modulating the light field intensity of the backlight source through liquid crystal switches. OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) devices have great application prospects in flat panel display products due to their advantages such as self-illumination, full solid state, wide viewing angle, and fast response. A new generation of flat panel display products after plasma). [0003] At present, due to the excellent characteristics of OLED, more and more OLEDs are used on mobile phone screens; among them, foldable mobile phones are a research and development hotspot for future electronic products, so research on foldable OLED screens is essential. [0004] In the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/30H01L27/32H10K99/00
CPCG09F9/301H10K59/40H04M1/0268G06F1/1652Y02E10/549H04M1/0214H10K77/111H10K2102/311H10K50/00
Inventor 贾永臻
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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