Patent ID: 12196994

Elements in the drawing are designated by reference numerals listed below.100. display device;1. display;2. polarizer;3. cover;4. first glass;5. optical adhesive;6. protective layer;11. second glass;12. buffer layer;13. thin film transistor layer;14. light-emitting layer;15. encapsulation layer;16. touch sensor layer;121, first buffer layer;122, second buffer layer;131. active layer;132. insulating layer;133. gate layer;134. interlayer insulation layer;135. source/drain layer136. planarization layer;1311. main body;1312. side;1321. first insulating layer;1322. second insulating layer;1331. first gate layer;1332. second gate layer;141. anode layer;142. organic light-emitting layer;143. cathode layer;21. first liquid crystal layer22. ¼ wavelength plate;23. interlayer;24. second liquid crystal layer;31. explosion-proof film;32. hard coat layer;33. protective film;51. first optical adhesive;52. second optical adhesive.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which FIG. Those skilled in the art will more readily understand how to implement the present invention. The present invention may, however, be embodied in many different forms and embodiments, and the scope of the present invention is not limited to the embodiments described herein.

The following description of the various embodiments is provided to illustrate the specific embodiments of the present invention. The spatially relative directional terms mentioned in the present invention, such as “upper”, “lower”, “before”, “after”, “left”, “right”, “inside”, “outside”, “side”, etc. and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures which are merely references.

In the drawings, the spatially relative terms are intended to encompass different orientations in addition to the orientation as depicted in the figures. Moreover, the size and thickness of each component shown in the drawings are arbitrarily shown for ease of understanding and description, and the present invention does not limit the size and thickness of each component.

When a component is described as “on” another component, the components are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact. When a component is described as “installed to” or “connected to” another component, it can be understood that a component is “directly installed” or “directly connected” to another component, or a component is “installed to” or “connected with” another component through an intermediate component.

Embodiment 1

As shown inFIG.1, this embodiment provides a display device100including a display screen1, a polarizer2, a cover plate3, and a first glass4.

As shown inFIGS.1and2, the display screen1includes a second glass11, a buffer layer12, a thin film transistor layer13, a light-emitting layer14, a encapsulation layer15, and a touch sensor layer16.

The material of the second glass11includes at least one of inorganic minerals, Na2SiO3, CaSiO3, SiO2, and Na2O·CaO·6SiO2. The thickness of the second glass11is less than 100 μm. The high yield strength characteristics and rigidity of the second glass are used to improve the flatness of the display device100and the water and oxygen blocking performance of the display device100.

The buffer layer12is disposed on the second glass11; the buffer layer12includes a first buffer layer121and a second buffer layer122which are sequentially disposed on the second glass11. The buffer layer12mainly functions as a buffer and a protection.

The active layer131is disposed on the buffer layer2. The active layer131includes a main body portion1311and two side portions1312. Specifically, in this embodiment, the polysiliconization of the active layer131is mainly realized by using an excimer laser crystallization technology, and then the active layer131is patterned through a PR mask to form the main body portion1311and the two side portions1312. Finally, an ion doping process is performed on the two side portions1312of the active layer131through the PR mask to form a P-type semiconductor.

The insulating layer132is disposed on the active layer131, and the gate layer133is disposed on the insulating layer132. Specifically, the insulating layer132includes a first insulating layer1321and a second insulating layer1322; the gate layer133includes a first gate layer1331and a second gate layer1332; the first insulating layer1321is disposed on the active layer131; the first gate layer1331is disposed on the first insulating layer1321; the second insulating layer1322is disposed on the first gate layer1331; and the first second gate layer1332is disposed on the second insulating layer1322.

The insulating layer132mainly plays an insulating role, and the first insulating layer1321mainly prevents a short circuit phenomenon caused by the contact between the first gate layer1331and the active layer131. The material of the insulating layer132includes one or more of SiO2 and SiNx.

The material of the gate layer33includes a metal, such as copper or molybdenum.

The interlayer insulating layer134is disposed on the second gate layer1322, and mainly used to prevent the source/drain layer135disposed thereon from contacting with the second gate layer1322to generate a short circuit phenomenon. The material of the interlayer insulating layer134includes one or more of SiO2 and SiNx.

The source/drain layer135is disposed on the interlayer insulating layer134and is connected to the active layer131through a via hole. Thereby, the source/drain layer135can be electrically connected to the active layer131.

The planarization layer136is disposed on the source/drain layer135, and mainly plays a role of flattening, to provide a smooth surface for the preparation of the subsequent layers.

The light-emitting layer14is disposed on the thin film transistor layer13. The light-emitting layer14includes an anode layer141, an organic light-emitting layer142, and a cathode layer143.

The anode layer141is disposed on the planarization layer136and is connected to the source/drain layer135through a via hole. The organic light-emitting layer142is disposed on the anode layer142, and the cathode layer is disposed on the organic light-emitting layer143.

The encapsulation layer15is disposed on the light-emitting layer14. The encapsulation layer15is mainly used to prevent water and oxygen from invading and causing damage to the component in the display screen.

The touch sensor layer16is disposed on the encapsulation layer15.

The display device100further includes an optical adhesive5disposed between the display screen1and the polarizer2. The optical adhesive includes a first optical adhesive51and a second optical adhesive52.

The polarizer2is disposed on the display screen1. The polarizer2includes a first liquid crystal layer21, a ¼ wavelength plate22, an interlayer23, and a second liquid crystal layer24.

The first liquid crystal layer21is disposed on the display screen1and mainly plays a role of converting natural light into polarized light.

The ¼ wavelength plate22is disposed on the first liquid crystal layer21and mainly converts linearly polarized light into circularly polarized light.

The interlayer23is disposed on the ¼ wavelength plate22to prevent mutual dissolution reaction between an upper layer and a lower layer.

The second liquid crystal layer24is disposed on the interlayer23, and mainly plays a role of improving chromatic aberration at a large viewing angle.

The cover plate3is disposed on the polarizer2. The cover plate3includes an explosion-proof film31, a hard coat layer32, and a protective film33.

The explosion-proof film31is disposed on the first glass4; the hard coat layer32is disposed on the explosion-proof film31; and the protective film33is disposed on the hard coat layer32.

The first glass4is disposed between the polarizer2and the cover plate3. The material of the first glass4includes at least one of inorganic minerals, Na2SiO3, CaSiO3, SiO2, and Na2O·CaO·6SiO2. The thickness of the first glass4is less than 100 μm. By using the high yield strength characteristics and rigidity of the first glass4, the flatness of the display device100is improved, and the water and oxygen blocking performance of the display device100is elevated.

Embodiment 2

As shown inFIG.3, this embodiment includes most of the technical features of Embodiment 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, the optical adhesive5is disposed between the polarizer2and the cover3, instead of being disposed between the display screen1and the polarizer3in Embodiment 1.

The display device100of this embodiment further includes a protective layer6disposed between the display screen1and the polarizer2. This can protect the touch sensor layer16from being invaded by water and oxygen, and prevent the touch sensor layer16from being damaged by stress.

In this embodiment, the high yield strength characteristics and rigidity of the first glass4are used to improve the flatness of the display device100and the water and oxygen blocking performance of the display device100. The high yield strength characteristics and rigidity of the second glass11are used to improve the flatness of the display device100and the water and oxygen blocking performance of the display device100.

Embodiment 3

This embodiment provides a method of manufacturing the display device described in Embodiment 1.

As shown inFIG.4, the method of manufacturing the display device includes: providing a protective film33, and preparing a first glass4on the protective film33.

As shown inFIG.5, an explosion-proof film31is coated on a surface of the first glass4.

As shown inFIG.6, a hard coat layer32is prepared on a surface of the explosion-proof film31away from the first glass4.

As shown inFIG.7, the layer on a side of the first glass4away from the protective film33is entirely flipped over to form a cover plate3disposed on the first glass4.

As shown inFIG.8, a second liquid crystal layer24is prepared on a surface of the first glass4away from the cover plate.

As shown inFIG.9, an interlayer23is prepared on a surface of the second liquid crystal layer24away from the first glass.

As shown inFIG.10, a ¼ wavelength plate22is prepared on a surface of the interlayer away from the first glass.

As shown inFIG.11, a first liquid crystal layer21is prepared on a surface of the ¼ wavelength plate22away from the first glass to form a polarizer2.

A display screen1is prepared on a glass substrate, a first optical adhesive51is coated on a surface of the prepared display screen1away from the second glass11, and a second liquid crystal layer52is coated on a surface of the prepared display screen1away from the first glass4. After that, the first optical adhesive51is bonded to the second optical adhesive52, and then the display screen1is peeled from the glass substrate by a laser lift-off technology, thereby forming a display device100.

Embodiment 4

This embodiment provides a method of manufacturing the display device described in Embodiment 2.

As shown inFIG.4, the method of manufacturing the display device includes: providing a protective film33, and preparing a first glass4on the protective film33.

As shown inFIG.5, an explosion-proof film31is coated on a surface of the first glass4.

As shown inFIG.6, a hard coat layer32is prepared on a surface of the explosion-proof film31away from the first glass4.

As shown inFIG.7, the layer on the side of the first glass4away from the protective film33is entirely flipped over to form a cover plate3disposed on the first glass4.

A display screen1is prepared on a glass substrate, and a protective layer6, a first liquid crystal layer21, a ¼ wavelength plate22, an interlayer23, and a second liquid crystal layer24are sequentially prepared on a surface of the prepared display screen1away from the second glass11sequentially.

A first optical adhesive51is coated on a surface of the second liquid crystal layer24away from the display screen1, and a second optical adhesive52is coated on a surface of the first glass4away from the cover plate3. After that, the first optical adhesive51is bonded to the second optical adhesive52, and then the display screen1is peeled from the glass substrate by a laser lift-off technology, thereby forming a display device100.

The display device provided in the embodiments of the present application have been described in detail above. Specific examples are used in this document to explain the principles and implementation of the present invention. The descriptions of the above embodiments are only for understanding the method of the present invention and its core ideas, to help understand the technical solution of the present application and its core ideas, and a person of ordinary skill in the art should understand that it can still modify the technical solution described in the foregoing embodiments, or equivalently replace some of the technical features. Such modifications or replacements do not depart the spirit of the corresponding technical solutions beyond the scope of the technical solutions of the embodiments of the present application.