TWI684811B - Display device and method of manufacturing display device - Google Patents

Abstract

The invention provides a display device and a method of manufacturing the display device. The display device includes a main body portion having a front surface and a rear surface opposed to each other, and a first side surface and a second side surface between the front surface and the rear surface and connecting the front surface and the rear surface ; A flexible display unit, including: a middle portion and a first bent portion and a second bent portion connected to the middle portion, wherein the middle portion provides a main display area on the front surface of the body portion, so The first bending portion provides a first side display area on the first side surface of the body portion, and the second bending portion provides a second side on the second side surface of the body portion A display area, wherein the first side display area, the main display area and the second side display area are continuous. The display device provided by the present invention can further increase the screen-to-body ratio and realize a full-screen borderless display.

Description

Display device and method of manufacturing display device

The invention relates to a display device and a method of manufacturing the display device.

The full screen mobile phone is the mainstream of the mobile phone market. At present, in order to increase the screen ratio, there are mainly the following methods: (1) reducing the border; (2) using edge bending to reduce the border to increase the screen ratio; (3) using pad bending (pad bending) ) Technology and under-screen fingerprint recognition reduce the lower border; (4) Use the top cutout to embed the earpiece and front camera lens into the cutout to further increase the screen ratio.

An embodiment of the present invention provides a display device including a main body portion having a front surface and a rear surface opposed to each other, and a third portion between the front surface and the rear surface and connecting the front surface and the rear surface One side surface and second side surface; flexible display unit, including: an intermediate portion and a first bending portion and a second bending portion connected to the intermediate portion, wherein the intermediate portion is in front of the main body portion A main display area is provided on the surface, the first bent portion provides a first side display area on the first side surface of the body portion, and the second bent portion is provided on the first side of the body portion A second side display area is provided on the two side surfaces, wherein the first side display area, the main display area and the second side display area are continuous.

In one example, the display device further includes: a circuit module connected to a side of the first bending portion opposite to the middle portion.

In one example, the flexible display unit includes: a polarizing plate, a flexible display panel and a touch panel, the touch panel is disposed between the polarizing plate and the flexible display panel and is electrically connected to the circuit module, and the The touch panel is integrated with the polarizing plate and the flexible display panel.

In one example, the display device further includes: a top and a bottom located at opposite ends of the main body portion and connected to the main body portion, the front surface of the main body portion, the first side surface and The second side surface forms a recess with the top and the bottom, and the thickness of the recess is greater than or equal to the thickness of the flexible display unit.

In one example, a side of the rear surface of the main body portion adjacent to the first side surface forms a first accommodating portion with the top and the bottom, and at least a portion of the circuit module is located In the first module accommodating part.

In one example, a side of the rear surface of the main body portion adjacent to the first side surface is provided with a first hole, and at least a portion of the circuit module passes through the first hole and is located in the A hollow space enclosed by the front surface, the rear surface, the first side surface, and the second side surface of the main body portion.

In one example, a side of the rear surface of the main body portion adjacent to the second side surface forms a second accommodating portion with the top and the bottom, the second of the flexible display unit A part of the bent portion is located in the second accommodating portion.

In one example, a side of the rear surface of the main body portion adjacent to the second side surface is provided with a second hole, and a portion of the second bent portion of the flexible display unit passes through the The second hole is located in a hollow space surrounded by the front surface, the rear surface, the first side surface, and the second side surface of the body portion.

In one example, the angle between the portion of the second bent portion on the second side surface of the main body portion and the portion of the second bent portion on the rear surface is greater than 90 degrees.

In one example, the upper end of the middle portion is provided with a notch, and the main body portion is provided with a speaker and a camera lens, and the positions of the speaker and the camera lens correspond to the positions of the notch.

In one example, a SIM card slot is provided in the top.

In one example, the display device is a mobile phone or the display device is used for a mobile phone.

In one example, a portion of the first bending portion on the first side surface of the main body portion is substantially perpendicular to the middle portion; the second bending portion is on the second side surface of the main body portion The upper part is substantially perpendicular to the middle part.

In one example, one of the first side surface and the second side surface of the main body portion is provided with a volume adjustment device using a pressure touch technology.

In one example, the display device further includes: a transparent panel covering the flexible display unit; and a rear cover; wherein the rear cover and the transparent panel are enclosed in a ring to cover the The front surface, the rear surface, the first side surface, and the second side surface of the body portion.

An embodiment of the present invention provides a method of manufacturing a display device, including: providing a main body portion having a front surface and a rear surface opposed to each other and between and connecting the front surface and the rear surface The first side surface and the second side surface of the surface and the rear surface; providing a flexible display unit with an effective display area; wrapping the flexible display unit on the body portion, wherein the flexible display unit The middle portion on the front surface of the main body portion provides a main display area, and the first bent portion on the first side surface of the main body portion of the flexible display unit provides a first side A display area, the second bent portion on the second side surface of the main body portion of the flexible display unit provides a second side display area, wherein the first side display area, the main display The area is continuous with the second side display area.

In one example, the providing a flexible display unit includes: laminating a flexible display panel, a touch panel, and a polarizing plate to form the display unit.

In one example, before wrapping the flexible display unit on the main body portion, the method further includes: cutting the display unit to form a notch on one side of the display unit.

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those of ordinary skill in the art according to these embodiments are included in the protection scope of the present invention.

The terminology used in the present invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. The singular forms "a", "said" and "the" used in the scope of the present invention and the attached patent applications are also intended to include most forms unless the context clearly indicates other meanings. It should also be understood that the term "and/or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that although the terms first, second, etc. may be used in the present invention to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "when..." or "responsive to certainty".

As shown in Figure 1, a 3D rigid cover 101 (Rigid Cover) and a flexible display 102 (for example, a flexible AMOLED display) are used for 3D lamination to shorten the left and right bezel effect, but due to the manufacturing of the 3D rigid cover 101, At present, it is impossible to realize the arc of the left and right vertical angles, and the current bonding process cannot achieve the 3D bonding of the vertical angles.

As shown in Fig. 1, the metal frame 103 mainly includes an upper frame and a lower frame. The upper frame has an earpiece and a camera lens, and the lower frame has a chip-on-film (COF) and a chip-on-film bending/T-flex circuit board ( T-FPC) bending, resulting in relatively large upper and lower borders, resulting in a smaller operable area 104 of the mobile phone. Therefore, a mobile phone with a higher screen-to-body ratio is needed.

FIG. 2 is a perspective view of the display device 100 according to an embodiment of the present invention. As shown in FIG. 2, the display device 100 includes a body portion 110, a display module 130 and a back cover 150 (see FIGS. 6 and 8 ). The body portion 110 includes a top portion 112, a bottom portion 114, and a main body portion 116 connecting the top portion 112 and the bottom portion 114 (see FIGS. 4 and 5). The upper portion of the front surface of the main body portion 116 may be provided with an earpiece (speaker) 1163 and a camera lens 1164. The upper surface of the top 112 may be provided with a card receiving portion 1122, which may be a SIM card slot, a storage card slot (eg, SD card slot, TF card slot, etc.), or a combination of both. The display module 130 covers or is attached to the upper surface and both side surfaces of the main body 116. The edge of the main body 116 and the notch corresponding to the flexible display unit 132 may be coated with waterproof glue. A volume adjustment device 1165 may be formed at one side of the main body 116. The volume adjustment device 1165 can be implemented by a Force Touch technology, so that while the display module 130 covers the entire side surface of the main body 116, it can also control the volume adjustment at the side of the main body 116. The side of the display device 100 can display communication information, time information, power, weather information, etc., and can adopt the AOD (Off Screen Display) mode. The display device 100 is a mobile phone (mobile phone) or can be used for a mobile phone to constitute a part of the mobile phone.

FIG. 3 is a schematic diagram of the display module 130 of the display device 100 according to an embodiment of the invention. FIG. 4 is a perspective view of the body portion 110 of the display device 100 according to an embodiment of the present invention. FIG. 5 is another perspective view of the body portion 110 of the display device 100 according to an embodiment of the invention. Referring to FIG. 3, the display module 130 includes a flexible display unit 132, a transparent panel 134, and a circuit module 136. The display unit 132 is electrically connected to the circuit module 136. The display unit 132 includes a polarizing plate 1328 and a flexible display panel 1322 provided under the polarizing plate 1328. Optionally, the display unit 132 further includes a cover film 1327 disposed above the polarizing plate 1328. Optionally, the display unit 132 further includes a touch panel 1326 disposed between the polarizing plate 1328 and the flexible display panel 1322 (this depends on whether the display device needs to provide a touch operation function). The film 1327, the polarizing plate 1328, the touch panel 1326, and the flexible display panel 1322 can be combined together by module bonding, and the film 1327, the polarizing plate 1328, the touch panel 1326, and the flexible display panel 1322 can be mutually Apply optical glue. The transparent panel 134 is attached above the display unit 132, and its area is smaller than that of the display unit 132. The display unit 132 can be divided into a middle portion 1323 and two bent portions 1324 provided on both sides of the middle portion 1323 in the horizontal direction. The two bent portions 1324 may not be covered by the transparent panel 134. Preferably, the transparent panel 134 and the back cover 150 surround the main body 116 a full circle to form a ring shape. Preferably, the transparent panel 134 covers the front surface and both sides of the main body 116, and the rear cover 150 covers the rear surface of the main body 116.

Referring to FIG. 2, the middle portion 1323 of the display unit 132 provides the main display area on the front surface of the main body portion 116, and the two bent portions 1324 provide the first side display area and the first side display area on the two side surfaces of the main body portion 116, respectively. The two-side display area, in which the first-side display area, the main display area and the second-side display area are consecutive in sequence. Referring to FIG. 3, when the display unit 132 is in an unbent state (ie, flat state), the first side display area, the main display area, and the second side display area constitute an effective display area of the display unit 132, and the first side There is no non-display area recognizable by the human eye between the display area and the main display area, and no non-display area recognizable by the human eye between the second side display area and the main display area.

With continued reference to FIGS. 3-5, the display unit 132 in FIG. 3 is in a state where it is not bent. The upper portion of the display unit 132 may be centrally provided with a notch. The transparent panel 134 may form a notch corresponding to the notch on the display unit 132, or the notch may not be formed on the transparent panel 134. When the display unit 132 is mounted on the body portion 110, the notch corresponds to the positions of the earpiece 1163 and the camera lens 1164. The bent portion 1324 may be bent downward as a whole with respect to the middle portion 1323. Preferably, the bent portion 1324 may be bent downward by about 90 degrees with respect to the middle portion 1323 as a whole. An under-screen fingerprint identification module may be provided below the display unit 132. The circuit module 136 may include an integrated circuit portion 1362 and a flexible printed circuit board 1364. On both sides of the back surface of the main body portion 116 (upper and lower sides in FIG. 5 ), a panel accommodating portion 1161 and a circuit module accommodating portion 1162 in the form of recesses are respectively provided. The circuit module 136 may be arranged vertically (the direction defined by the top and bottom ends of the display module, the left-right direction in FIG. 3) below the display unit 132, preferably in the circuit module accommodating portion 1162 (see (Figure 5). With continued reference to FIG. 5, the holes for the panel and the holes for the circuit board are provided at positions corresponding to the panel accommodating portion 1161 and the circuit module accommodating portion 1162 on both sides of the back surface of the main body portion 116. At least a part of the circuit module 136 passes through the hole for the circuit board and is located in the hollow space surrounded by the front surface, the rear surface, and the two side surfaces of the main body 116; a part of the longer bent portion of the display unit passes through The hole for the panel is located in the hollow space surrounded by the front surface, the rear surface, and the two side surfaces of the main body 116.

The two bent portions 1324 of the display unit 132 may have different lengths. One of the two bending portions 1324 can be further bent to the back of the main body portion 116 after being bent relative to the middle portion 1323, and is preferably accommodated in the panel accommodating portion 1161. The longer one of the above-mentioned bent portions may have an angle greater than 90 degrees to each other on the side and back of the main body 116, preferably, an angle selected from the range greater than 90 degrees and 115 degrees or less (see (Figure 7). The main body portion 116 also has a recessed portion 1160. The recessed portion 1160 is a front surface (upper surface in FIG. 4) of the main body portion 116 and a space retracted relative to the top 112 and the bottom 114 on both side surfaces. The thickness of the recessed portion 1160 may roughly correspond to the thickness of the display unit 132. Alternatively, the thickness of the recess 1160 may roughly correspond to the sum of the thicknesses of the display unit 132 and the transparent panel 134. The body portion 116 may have a hollow design in which components such as a battery, a CPU circuit, etc. are provided.

FIG. 6 is a perspective view of the rear cover 150 of the display device 100 according to an embodiment of the present invention. Referring to FIGS. 5 and 6, the rear cover 150 can be snapped onto the rear surface of the main body 116, and the upper and lower ends of the rear cover 150 are engaged with the bottom surface of the top 112 and the top surface of the bottom 114, respectively. The rear cover 150 may also be combined with the main body 116 by a conventional method such as screwing. As shown in FIG. 6, the left and right sides of the rear cover 150 may be thicker than the middle portion, and the thickness thereof may gradually increase from somewhere in the middle portion to one side, thereby matching the inclined portion on the rear surface of the main body portion 116 (See FIG. 5), so that the rear surface of the display device 100 finally assumes a flat shape. The back cover 150 may also have a uniform thickness.

FIG. 7 is a schematic cross-sectional view of the display module 130 of the display device 100 according to an embodiment of the present invention. As shown in FIG. 7, the transparent panel 134 is bent together with the display unit 132 and has a shape matching each other. In this embodiment, the bent portion 1324 on the left side is longer than the bent portion 1324 on the right side, and further bends itself. And, the flexible printed circuit board 1364 is provided at the right side, close to the bent portion 1324 at the side.

FIG. 8 is a schematic end view of a display device according to an embodiment of the present invention. In this embodiment, the panel accommodating portion 1161 and the circuit module accommodating portion 1162 may be formed on the left and right sides of the upper surface of the rear cover 150. The rear surface of the main body portion 116 is formed into a flat surface.

The manufacturing process of the display device 100 will be described below. First, a flexible display panel 1322, a touch panel 1326, and a polarizing plate 1328 (optionally, a film 1327 can also be provided) are provided, and the modules are laminated to form the display unit 132. The display unit 132 is cut to form a notch centrally on the upper side of the display unit 132. The body portion 110 is provided, the display unit 132 is disposed above the body portion 110, and both sides of the display unit 132 are bent to abut against both side surfaces of the body portion 110. The left and right sides of the rear surface of the body portion 110 adjacent to the two side surfaces respectively form a panel accommodating portion 1161 and a circuit module accommodating portion 1162. Two bent portions 1324 are formed on both sides of the bent display unit 132. The two bent portions 1324 have different lengths, and the longer one of the two bent portions is further bent into the panel accommodating portion 1161. The circuit module 136 is provided so that the circuit module 136 is disposed in the circuit module accommodating portion 1162. The circuit module 136 is connected to the display unit 132. A transparent panel 134 is provided so that the transparent panel 134 covers and fits outside of the display unit 132. The rear cover 150 is provided so that the rear cover 150 covers the rear surface of the body portion 110, and the transparent panel 134 and the rear cover 150 are enclosed in a ring shape.

The display device 100 of the present invention can achieve a display effect with no borders on the sides, and the top and bottom borders are greatly reduced compared to the prior art. In addition, the display device 100 of the present invention can also realize the display of the side frame.

Those skilled in the art will easily think of other embodiments of the present invention after considering the description and practicing the applications disclosed herein. The present invention is intended to cover any variations, uses, or adaptive changes of the present invention, which follow the general principles of the present invention and include common general knowledge or common technical means in the technical field not disclosed by the present invention . The description and examples are only considered exemplary, and the true scope and spirit of the present invention are pointed out by the patent application scope of the present invention.

It should be understood that the present invention is not limited to the precise structure that has been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the scope of the attached patent application.

100‧‧‧Display device 101‧‧‧3D rigid cover 102‧‧‧Flexible display 103‧‧‧Metal frame 104‧‧‧Operable area 110‧‧‧Body part 112‧‧‧Top 1122‧‧‧Card storage part 114‧‧‧Bottom 116‧‧‧Main part 1160‧‧‧Recessed part 1161‧‧‧Panel accommodating part 1162‧‧‧Circuit module accommodating part 1163‧‧‧Earpiece 1164‧‧‧Camera lens 1165‧‧ ‧Volume adjustment device 130‧‧‧Display module 132‧‧‧Flexible display unit 1322‧‧‧Flexible display panel 1323‧‧‧Intermediate part 1324‧‧‧Bent part 1326‧‧‧Touch panel 1327‧‧‧cover Film 1328‧‧‧ Polarized plate 134‧‧‧Transparent panel 136‧‧‧ Circuit module 1362‧‧‧Integrated circuit part 1364‧‧‧Flexible printed circuit board 150‧‧‧ Rear cover

By considering the following detailed description of preferred embodiments of the present invention in conjunction with the accompanying drawings, various objects, features, and advantages of the present invention will become more apparent. The drawings are merely exemplary illustrations of the present invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Among them: Figure 1 is a schematic cross-sectional view of a display device; Figure 2 is a perspective view of a display device according to an embodiment of the present invention; Figure 3 is a display module of a display device according to an embodiment of the present invention 4 is a perspective view of the main body of the display device according to an embodiment of the present invention; FIG. 5 is another perspective view of the main body of the display device according to an embodiment of the present invention; FIG. 6 is A perspective view of a rear cover of a display device according to an embodiment of the invention; FIG. 7 is a schematic cross-sectional view of a display module of the display device according to an embodiment of the invention; FIG. 8 is a diagram according to the invention A schematic end view of the display device of the embodiment.

130‧‧‧Display module

132‧‧‧Flexible display unit

1322‧‧‧Flexible display panel

1323‧‧‧ Middle

1324‧‧‧Bending Department

1326‧‧‧Touch panel

1327‧‧‧Lamination

1328‧‧‧ Polarizer

134‧‧‧Transparent panel

136‧‧‧ circuit module

1362‧‧‧Integrated circuit part

1364‧‧‧flexible printed circuit board

Claims (16)

A display device includes a main body portion having a front surface and a rear surface opposed to each other, and a first side surface and a second surface between the front surface and the rear surface and connecting the front surface and the rear surface Side surface; flexible display unit, including: a middle portion and a first bent portion and a second bent portion connected to the middle portion, wherein the middle portion provides a main display area on the front surface of the main body portion , The first bending portion provides a first side display area on the first side surface of the main body portion, and the second bending portion provides a second side surface on the second side surface of the main body portion Two-side display area, wherein the first-side display area, the main display area and the second-side display area are continuous; the circuit module is connected to the first bending portion with respect to the middle A side of the portion, wherein a side of the rear surface of the main body portion adjacent to the first side surface is provided with a first hole, and at least a portion of the circuit module passes through the first hole and is located A hollow space enclosed by the front surface, the rear surface, the first side surface, and the second side surface of the main body portion. The display device according to item 1 of the patent application scope, wherein the flexible display unit includes: a polarizing plate, a flexible display panel, and a touch panel, and the touch panel is provided between the polarizing plate and the flexible display panel Between and electrically connected to the circuit module, and the touch panel is integrated with the polarizing plate and the flexible display panel. The display device according to item 1 of the patent application scope further includes: a top and a bottom located at opposite ends of the main body part and connected to the main body part, the front surface of the main body part, the first The one side surface and the second side surface form a recess with the top and the bottom, and the thickness of the recess is greater than or equal to the thickness of the flexible display unit. The display device as described in item 1 of the scope of patent application further includes: located on the main body The opposite ends of the portion are connected to the top and bottom of the main body, wherein a side of the rear surface of the main body adjacent to the first side surface forms a first volume with the top and the bottom At least a part of the circuit module is located in the first accommodating part. The display device according to item 1 of the patent application scope further includes: a top and a bottom located at opposite ends of the main body part and connected to the main body part, wherein the rear surface of the main body part is adjacent to the One side of the second side surface forms a second accommodating portion with the top and the bottom, and a part of the second bent portion of the flexible display unit is located in the second accommodating portion. The display device according to item 1 of the patent application range, wherein the side of the rear surface of the main body portion adjacent to the second side surface is provided with a second hole, and the first of the flexible display unit A part of the two bent portions passes through the second hole and is located in a hollow space surrounded by the front surface, the rear surface, the first side surface, and the second side surface of the body portion. The display device according to item 1 of the patent application range, wherein the portion of the second bending portion on the second side surface of the main body portion and the portion of the second bending portion on the rear surface The included angle is greater than 90 degrees. The display device according to Item 2 of the patent application scope, wherein the upper end of the middle portion is provided with a notch, and the main body portion is provided with a speaker and a camera lens, and the positions of the speaker and the camera lens correspond to the groove The location of the mouth. The display device according to item 3 of the patent application scope, wherein a SIM card slot is provided in the top. The display device according to item 1 of the patent application scope, wherein the display device is a mobile phone or the display device is used for a mobile phone. The display device according to item 1 of the patent application, wherein the first bending portion The portion on the first side surface of the main body portion is substantially perpendicular to the middle portion; the portion of the second bending portion on the second side surface of the main body portion is substantially perpendicular to the middle portion . The display device according to item 1 of the patent application scope, wherein a volume adjusting device using a pressure touch technology is provided on one of the first side surface and the second side surface of the main body portion. The display device according to item 1 of the patent application scope further includes: a transparent panel covering the flexible display unit; and a rear cover; wherein the rear cover and the transparent panel are enclosed in a ring shape To cover the front surface, the rear surface, the first side surface, and the second side surface of the body portion. A method of manufacturing a display device, comprising: providing a main body portion having a front surface and a rear surface opposed to each other and between and connecting the front surface and the rear surface The first side surface and the second side surface; providing a flexible display unit with an effective display area; covering the flexible display unit on the body portion, wherein the flexible display unit on the body portion The middle portion on the front surface provides a main display area, and the first bent portion of the flexible display unit on the first side surface of the main body portion provides a first side display area, and the flexible display unit A second bent portion on the second side surface of the main body portion provides a second side display area, wherein the first side display area, the main display area and the second side display area are continuous Providing a circuit module, the circuit module being connected to a side of the first bending portion relative to the middle portion, wherein the rear surface of the body portion is adjacent to the first side surface On the side of the A hole formed by at least a part of the circuit module passing through the first hole and located on the front surface, the rear surface, the first side surface and the second side surface of the main body portion In hollow space. The method for manufacturing a display device according to item 14 of the patent application scope, wherein the providing of the flexible display unit includes: laminating the flexible display panel, the touch panel, and the polarizing plate to form the display unit. The method for manufacturing a display device according to item 15 of the patent application scope, wherein, before the flexible display unit is wrapped on the main body portion, the method further includes: cutting the display unit A notch is formed on one side of the display unit.

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