阅读说明：本技术 一种显示装置及其组装方法 (Display device and assembling method thereof ) 是由 罗永辉 冯彬峰 王佳祥 李飞 杜宇 王超 张子杰 于 2019-09-17 设计创作，主要内容包括：本申请公开了一种显示装置及其组装方法,用以避免驱动芯片受力断裂。本申请实施例提供的一种显示装置,包括：显示面板；显示面板划分为显示区和位于显示区之外的周边区；周边区包括：绑定区,以及位于绑定区和显示区之间的弯折区；所述弯折区沿弯折轴向所述显示面板的背面弯折,以使所述绑定区位于所述显示面板的背面；所述显示装置还包括：位于背离所述显示面板的背面一侧且绑定在所述绑定区的驱动芯片,以及所述驱动芯片的保护罩；所述保护罩包括：在所述绑定区背离所述驱动芯片一侧的至少一个第一刚性垫片,与所述驱动芯片相对的平板部件,以及连接所述第一刚性垫片和所述平板部件的支撑部件；所述平板部件与所述驱动芯片之间具有间隙。(The application discloses a display device and an assembling method thereof, which are used for avoiding the stress fracture of a driving chip. An embodiment of the present application provides a display device, including: a display panel; the display panel is divided into a display area and a peripheral area outside the display area; the peripheral area includes: the display device comprises a binding area and a bending area positioned between the binding area and a display area; the bending area is bent towards the back of the display panel along a bending axis, so that the binding area is located on the back of the display panel; the display device further includes: the driving chip is positioned on one side of the back surface, which is far away from the display panel, and is bound in the binding region, and the protective cover of the driving chip; the protective cover includes: at least one first rigid gasket on the side of the binding region facing away from the driver chip, a flat plate component opposite to the driver chip, and a support component connecting the first rigid gasket and the flat plate component; a gap is formed between the flat plate component and the driving chip.)

1. a display device, characterized in that the display device comprises: a display panel; the display panel is divided into a display area and a peripheral area outside the display area; the peripheral zone includes: a binding region and a bending region located between the binding region and the display region; the bending area is bent towards the back of the display panel along a bending axis, so that the binding area is located on the back of the display panel;

the display device further includes: the driving chip is positioned on one side of the back surface, which is far away from the display panel, and is bound in the binding region, and the protective cover of the driving chip;

The protective cover includes: at least one first rigid gasket on the side of the binding region facing away from the driver chip, a flat plate component opposite to the driver chip, and a support component connecting the first rigid gasket and the flat plate component; a gap is formed between the flat plate component and the driving chip.

2. The display device of claim 1, wherein the bonding region covers the first rigid gasket; the binding region includes: a drive lead, and a through hole avoiding the drive lead; in the direction perpendicular to the bending axis, the through holes are located on two sides of the driving chip, and the supporting component penetrates through the through holes and is connected with the first rigid gasket.

3. the display device according to claim 2, wherein an area of the through hole is larger than an area of a cross section of the support member.

4. The display device according to claim 1, wherein the first rigid pad covers the bonding region, the supporting member is located on both sides of the driving chip in a direction perpendicular to the bending axis, and the supporting member and the bonding region do not overlap with each other.

5. The display device according to any one of claims 1 to 4, wherein the support member includes: an elastic support member and a rigid support member;

The rigid support member is integrally formed with the plate member, or the rigid support member is integrally formed with the first rigid spacer.

6. the display device according to claim 5, wherein the elastic support member is a foam tape.

7. The display device according to claim 5, wherein the thickness of the rigid support member is larger than that of the driving chip, and a gap a between the driving chip and the flat plate member satisfies the following condition: a ═ b × c + d; wherein b is the thickness of the elastic supporting part, c is the compression ratio of the elastic supporting part, and d is a preset safety parameter.

8. the display device according to any one of claims 1 to 4, wherein the support member includes a rigid support member connecting the first rigid spacer and the flat plate member;

The rigid support member is integrally formed with the first rigid spacer, or the rigid support member is integrally formed with the flat plate member.

9. the display device according to claim 1, further comprising a main board or a back frame assembled with the display panel, wherein the flat panel part multiplexes the main board or the back frame.

10. The display device according to claim 1, further comprising: a second rigid pad attached to the entire back surface of the display panel; the first rigid gasket is attached to the second rigid gasket;

the display device further includes: a flexible circuit board; the flexible circuit board is bound with the binding area, and the flexible circuit board is attached to the second rigid gasket in the area where the first rigid gasket is not attached.

11. a method of assembling a display device, the method comprising:

Providing a display panel; the display panel comprises a display area and a peripheral area positioned outside the display area; the peripheral zone includes: a binding region and a bending region located between the binding region and the display region;

Binding a drive chip in the binding region, and assembling a protective cover of the drive chip;

Bending the bending area along the bending axis to the back of the display panel so that the binding area is positioned on the back of the display panel;

Wherein, the equipment drive chip's safety cover specifically includes:

attaching at least one first rigid gasket to one side of the binding area, which is far away from the driving chip;

providing a flat plate component and a supporting component, connecting the first rigid gasket and the flat plate component by using the supporting component, wherein a gap is formed between the flat plate component and the driving chip.

Technical Field

the present disclosure relates to display technologies, and particularly to a display device and an assembling method thereof.

Background

The design of present display product develops to collapsible direction step by step, because folding performance demand, the material of display product module is changed for flexible foldable material. Such design leads to the surface strength reduction of whole display product, for pursuing folding performance, the ball that falls of module falls the pen test and can not reach the level of glass apron module. Moreover, the display product comprises an Integrated Circuit (IC), the surface pressing and folding processes of the display product can be greatly deformed in a reliability test, and the IC is made of a rigid material and is easy to break under the extrusion of an external force.

In summary, the flexible display products in the prior art are prone to IC stress cracking, which affects product yield and product life.

Disclosure of Invention

the embodiment of the application provides a display device and an assembling method thereof, which are used for avoiding the stress fracture of a driving chip.

an embodiment of the present application provides a display device, the display device includes: a display panel; the display panel is divided into a display area and a peripheral area outside the display area; the peripheral zone includes: a binding region and a bending region located between the binding region and the display region; the bending area is bent towards the back of the display panel along a bending axis, so that the binding area is located on the back of the display panel;

The display device further includes: the driving chip is positioned on one side of the back surface, which is far away from the display panel, and is bound in the binding region, and the protective cover of the driving chip;

the protective cover includes: at least one first rigid gasket on the side of the binding region facing away from the driver chip, a flat plate component opposite to the driver chip, and a support component connecting the first rigid gasket and the flat plate component; a gap is formed between the flat plate component and the driving chip.

The embodiment of the application provides a display device, be provided with driver chip's safety cover, when external pressure acts on the display device top, pressure conducts to first rigid gasket through the rete on display device surface, conduct to the supporting component, rethread supporting component conducts to dull and stereotyped part, whole process driver chip is located the rigid safety cover, the surface of driver chip can't be used to external force, and carry out the in-process of reliability test at display device, when there is internal pressure effect, the pressure that the dull and stereotyped part of pressure produced, buffer and act on first rigid gasket through the supporting component, whole process driver chip is located the rigid safety cover, the surface of driver chip can still not be used to pressure. Therefore, the protective cover can prevent the driving chip from being broken due to the pressure acting on the driving chip, the yield of products is guaranteed, and the service life of the products is prolonged.

optionally, the bonding region covers the first rigid pad; the binding region includes: a drive lead, and a through hole avoiding the drive lead; in the direction perpendicular to the bending axis, the through holes are located on two sides of the driving chip, and the supporting component penetrates through the through holes and is connected with the first rigid gasket.

according to the display device provided by the embodiment of the application, the binding area covers the first rigid gasket, and the supporting component penetrates through the through hole avoiding the driving lead to connect the first rigid gasket with the flat component, so that the assembling space of the display device can be saved.

Optionally, the area of the through hole is larger than the area of the cross section of the support member.

The display device that this application embodiment provided because the area of through-hole is greater than the area of support component cross section to can avoid support component and display panel equipment to the interference that display panel caused.

Optionally, the first rigid gasket covers the bonding region, the supporting members are located on two sides of the driving chip in a direction perpendicular to the bending axis, and the supporting members and the bonding region do not overlap with each other.

The display device that this application embodiment provided, first rigidity gasket covers the district of binding to the supporting component with bind the district each other overlap, the supporting component is connected with first rigidity gasket in the region that first rigidity gasket does not cover the district of binding promptly, thereby need not to set up the through-hole at the district of binding, can simplify process flow, lead wire when binding the district is intensive to be difficult to set up the through-hole of dodging the lead wire under the condition, also can set up the safety cover of protection driver chip.

Optionally, the support member comprises: an elastic support member and a rigid support member;

The rigid support member is integrally formed with the plate member, or the rigid support member is integrally formed with the first rigid spacer.

According to the display device provided by the embodiment of the application, the supporting component comprises the elastic supporting component, so that when pressure is transmitted to the supporting component, the elastic supporting component can buffer the pressure and prevent the pressure from acting on the driving chip.

Optionally, the elastic support member is a foam tape.

Optionally, the thickness of the rigid support member is greater than that of the driving chip, and a gap a between the driving chip and the flat plate member satisfies the following condition: a ═ b × c + d; wherein b is the thickness of the elastic supporting part, c is the compression ratio of the elastic supporting part, and d is a preset safety parameter.

Therefore, the elastic supporting component can buffer pressure, and simultaneously, the driving chip is prevented from contacting the flat component, and the pressure is prevented from acting on the driving chip.

optionally, the support member comprises a rigid support member connecting the first rigid spacer and the plate member;

the rigid support member is integrally formed with the first rigid spacer, or the rigid support member is integrally formed with the flat plate member.

Optionally, the display device further includes a main board or a back frame assembled with the display panel, and the flat component multiplexes the main board or the back frame.

According to the display device provided by the embodiment of the application, the flat component and the main board or the back frame are rigid components, and when the flat component multiplexes the main board or the back frame, the assembling space is further saved.

Optionally, the display device further comprises: a second rigid pad attached to the entire back surface of the display panel; the first rigid gasket is attached to the second rigid gasket;

The display device further includes: a flexible circuit board; the flexible circuit board is bound with the binding area, and the flexible circuit board is attached to the second rigid gasket in the area where the first rigid gasket is not attached.

according to the display device provided by the embodiment of the application, the first rigid gasket is attached to the second rigid gasket, and the whole surface of the second rigid gasket is attached to the back surface of the display panel.

The assembling method of the display device provided by the embodiment of the application comprises the following steps:

providing a display panel; the display panel comprises a display area and a peripheral area positioned outside the display area; the peripheral zone includes: a binding region and a bending region located between the binding region and the display region;

Binding a drive chip in the binding region, and assembling a protective cover of the drive chip;

Bending the bending area along the bending axis to the back of the display panel so that the binding area is positioned on the back of the display panel;

wherein, the equipment drive chip's safety cover specifically includes:

attaching at least one first rigid gasket to one side of the binding area, which is far away from the driving chip;

Providing a flat plate component and a supporting component, connecting the first rigid gasket and the flat plate component by using the supporting component, wherein a gap is formed between the flat plate component and the driving chip.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

fig. 1 is a schematic diagram of a display device according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view along AA' of FIG. 1 according to an embodiment of the present application;

fig. 3 is a schematic view of another display device provided in an embodiment of the present application;

fig. 4 is a schematic diagram of another display device provided in an embodiment of the present application;

Fig. 5 is a schematic diagram of another display device provided in an embodiment of the present application;

fig. 6 is a schematic diagram of another display device provided in an embodiment of the present application;

fig. 7 is a schematic diagram of another display device provided in an embodiment of the present application;

Fig. 8 is a schematic diagram of another display device provided in an embodiment of the present application;

Fig. 9 is a schematic view of another display device provided in an embodiment of the present application;

fig. 10 is a schematic view of another display device provided in an embodiment of the present application;

Fig. 11 is a schematic view of another display device provided in an embodiment of the present application;

fig. 12 is a schematic view of another display device provided in an embodiment of the present application;

Fig. 13 is a schematic view of another display device provided in an embodiment of the present application;

fig. 14 is a schematic view illustrating an assembling method of a display device according to an embodiment of the present disclosure;

Fig. 15 is a schematic view illustrating an assembling method of a protective cover according to an embodiment of the present disclosure.

Detailed Description

an embodiment of the present application provides a display device, as shown in fig. 1 and 2, the display device includes: a display panel 1; fig. 1 shows only the display panel 1, and fig. 2 is a cross-sectional view along AA' in fig. 1; the display panel 1 is divided into a display area 2 and a peripheral area 3 positioned outside the display area 2; the peripheral section 3 includes: a binding region 4, and a bending region 5 located between the binding region 4 and the display region 2; the bending area 5 is bent towards the back 6 of the display panel 1 along a bending axis, so that the binding area 4 is located on the back 6 of the display panel 1;

The display device further includes: the driving chip 7 is positioned on the side of the back surface 6, which is far away from the display panel 1, and is bound in the binding region 4, and the protective cover 8 of the driving chip 7;

The protective cover 8 includes: at least one first rigid pad 9 on a side of the bonding region 4 facing away from the driver chip 7, a plate member 10 opposite to the driver chip 7, and a support member 11 connecting the first rigid pad 9 and the plate member 10; a gap is provided between the flat plate member 10 and the driving chip 7.

The embodiment of the application provides a display device, be provided with driver chip's safety cover, when external pressure acts on the display device top, pressure conducts to first rigid gasket through the rete on display device surface, conduct to the supporting component, rethread supporting component conducts to dull and stereotyped part, whole process driver chip is located the rigid safety cover, the surface of driver chip can't be used to external force, and carry out the in-process of reliability test at display device, when there is internal pressure effect, the pressure that the dull and stereotyped part of pressure produced, buffer and act on first rigid gasket through the supporting component, whole process driver chip is located the rigid safety cover, the surface of driver chip can still not be used to pressure. Therefore, the protective cover can prevent the driving chip from being broken due to the pressure acting on the driving chip, the yield of products is guaranteed, and the service life of the products is prolonged.

it should be noted that, in the display device shown in fig. 2, the protection cover includes one first rigid gasket as an example for illustration, and in a specific implementation, a plurality of first rigid gaskets may be provided, and the number of the first rigid gaskets may be selected according to actual needs. The display device provided by the embodiment of the application can be a flexible display device. The reliability test performed by the display device may be, for example, a bending test, a dropping test, or a roller test in which the display device generates an internal pressure due to a flexible deformation.

alternatively, as shown in fig. 3, a cross-sectional view along AA' in fig. 1, the display device further includes: a second rigid pad 12 attached to the entire back surface 6 of the display panel 1; the first rigid gasket 9 is attached to the second rigid gasket 12;

The display device further includes: a flexible circuit board 13; the flexible circuit board 13 is bound with the binding area 4, and in the area where the first rigid gasket 9 is not attached, the flexible circuit board 13 is attached to the second rigid gasket 12.

according to the display device provided by the embodiment of the application, the first rigid gasket is attached to the second rigid gasket, and the whole surface of the second rigid gasket is attached to the back surface of the display panel.

Optionally, the material of the first rigid gasket and the second rigid gasket comprises one or a combination of the following: stainless steel (SUS), copper foil.

optionally, a cross-sectional view along BB' in fig. 1 is shown in fig. 4, the bonding region covering the first rigid pad; the binding region includes: a drive lead, and a through hole avoiding the drive lead; in the direction perpendicular to the bending axis, the through holes are located on two sides of the driving chip, and the supporting component penetrates through the through holes and is connected with the first rigid gasket.

According to the display device provided by the embodiment of the application, the binding area covers the first rigid gasket, and the supporting component penetrates through the through hole avoiding the driving lead to connect the first rigid gasket with the flat component, so that the assembling space of the display device can be saved.

When the binding region covers the first rigid gasket, the boundary of the orthographic projection of the binding region on the back surface of the display panel may coincide with the orthographic projection of the first rigid gasket on the back film of the display panel, or the orthographic projection of the first rigid gasket on the back film of the display panel may fall into the orthographic projection of the binding region on the back surface of the display panel.

Alternatively, as shown in fig. 5, the area of the through-hole is larger than the area of the cross-section of the support member.

The display device that this application embodiment provided because the area of through-hole is greater than the area of support component cross section to can avoid support component and display panel equipment to the interference that display panel caused.

alternatively, as shown in fig. 5, the cross-section of the support member is circular, and the through-hole is elliptical, the minor axis of the ellipse being larger than the diameter of the circle.

alternatively, as shown in fig. 6, the cross-sectional view along BB' in fig. 1 shows, the first rigid gasket covers the bonding region, the supporting member is located on both sides of the driving chip along the direction perpendicular to the bending axis, and the supporting member and the bonding region do not overlap with each other.

the display device that this application embodiment provided, first rigidity gasket covers the district of binding to the supporting component with bind the district each other overlap, the supporting component is connected with first rigidity gasket in the region that first rigidity gasket does not cover the district of binding promptly, thereby need not to set up the through-hole at the district of binding, can simplify process flow, lead wire when binding the district is intensive to be difficult to set up the through-hole of dodging the lead wire under the condition, also can set up the safety cover of protection driver chip.

in fig. 2 and 3, the width of the supporting member along the bending axis of the bending region is smaller than the width of the driving chip. When the first rigid gasket covers the bonding region, since the supporting member does not need to be connected to the first rigid gasket through the through hole, and the width of the supporting member does not need to be limited by the size of the through hole along the bending axis direction of the bending region, the cross-sectional view along AA' in fig. 1 may also be that as shown in fig. 7, the width of the supporting member is greater than the width of the driving chip along the bending axis direction of the bending region. Thereby further improving the supporting effect. In fig. 7, since the width of the supporting member is greater than that of the driving chip, the driving chip is not shown in fig. 7.

Alternatively, as shown in fig. 2 to 7, the support member includes a rigid support member connecting the first rigid gasket and the flat plate member.

Optionally, the rigid support member is integrally formed with the first rigid spacer, or the rigid support member is integrally formed with the plate member.

Alternatively, as shown in fig. 8 to 11, the support member includes: an elastic support member and a rigid support member;

As shown in fig. 8 and 10, the rigid support member is formed integrally with the flat plate member, or as shown in fig. 9 and 11, the rigid support member is formed integrally with the first rigid spacer.

according to the display device provided by the embodiment of the application, the supporting component comprises the elastic supporting component, so that when pressure is transmitted to the supporting component, the elastic supporting component can buffer the pressure and prevent the pressure from acting on the driving chip.

Optionally, the elastic support member is a foam tape.

optionally, the thickness of the rigid support member is greater than that of the driving chip, and a gap a between the driving chip and the flat plate member satisfies the following condition: a ═ b × c + d; wherein b is the thickness of the elastic supporting part, c is the compression ratio of the elastic supporting part, and d is a preset safety parameter.

therefore, the elastic supporting component can buffer pressure, and simultaneously, the driving chip is prevented from contacting the flat component, and the pressure is prevented from acting on the driving chip.

The preset safety value may be selected according to actual needs, and in the embodiment of the present application, the preset safety parameter d may be (0.05-0.2), for example.

Optionally, as shown in fig. 12 and 13, the display device further includes a back frame 17 assembled with the display panel, and the flat component 11 multiplexes the main board or the back frame 17.

According to the display device provided by the embodiment of the application, the flat component and the main board or the back frame are rigid components, and when the flat component multiplexes the main board or the back frame, the assembling space is further saved.

In fig. 12, the example is given in which the width of the support member in the bending axis direction along the bending region is smaller than the width of the driver chip. In fig. 13, the example is illustrated in which the width of the supporting member in the bending axis direction of the bending region is larger than the width of the driving chip.

Optionally, as shown in fig. 12 and 13, the display device further includes: a polarizer 18 on the display panel 1, an optical glue 19 on the polarizer 18, and a cover plate 20 on the optical glue 19.

based on the same inventive concept, an embodiment of the present application further provides an assembling method of a display device, as shown in fig. 14, the method includes:

S101, providing a display panel; the display panel comprises a display area and a peripheral area positioned outside the display area; the peripheral zone includes: a binding region and a bending region located between the binding region and the display region;

S102, binding a drive chip in the binding region, and assembling a protective cover of the drive chip;

S103, bending the bending area along the bending axis to the back of the display panel so as to enable the binding area to be located on the back of the display panel;

as shown in fig. 15, the step S102 of assembling the protective cover of the driver chip specifically includes:

s1021, attaching at least one first rigid gasket to one side, away from the driving chip, of the binding area;

And S1022, providing a flat plate component and a supporting component, connecting the first rigid gasket and the flat plate component by using the supporting component, and forming a gap between the flat plate component and the driving chip.

optionally, after providing the display panel, the method further includes:

A second rigid gasket on the back of the display panel;

Bending the bending area along the bending axis to the back of the display panel so as to enable the binding area to be located on the back of the display panel, and the method specifically comprises the following steps:

And bending the bending area along the bending axis to the back of the display panel so that the first rigid gasket is attached to the second rigid gasket.

Optionally, the multiplexing of the flat component with the main board or the back frame, connecting the first rigid gasket and the flat component by using the supporting component specifically includes:

And connecting the first rigid gasket and the main plate or the back frame by using the supporting component.

optionally, a flat plate member and a support member are provided, specifically comprising:

Providing a rigid support member integrally formed with the plate member or providing a rigid support member integrally formed with the first rigid spacer.

optionally, providing the plate member and the support member further comprises:

attaching an elastic support member to the rigid member;

Utilize the support component to connect the first rigid gasket and the flat plate component, specifically include:

Attaching the elastic support member to the first rigid pad or attaching the elastic support member to the flat plate member.

Optionally, the elastic support member is a foam tape.

so that the foam adhesive tape can be directly attached to the supporting component and the first rigid gasket or the flat component.

Optionally, the bonding region covers the first rigid pad; the binding region includes: drive lead wire to and dodge drive lead wire's through-hole, along perpendicular in the direction of bending axle, the through-hole is located the driver chip both sides utilize the supporting component will first rigid gasket with dull and stereotyped part connects, specifically includes:

And penetrating the supporting component through the through hole, and connecting the first rigid gasket and the flat plate component.

optionally, the first rigid gasket covers the binding region, and the supporting component is used to connect the first rigid gasket and the flat component, specifically including:

And arranging the supporting component in the area which is positioned at two sides of the driving chip along the direction vertical to the bending axis and is not covered on the binding area of the first rigid gasket, and connecting the first rigid gasket and the flat plate component.

to sum up, the display device and the assembling method thereof that this application embodiment provided, the safety cover that is provided with driver chip, when external pressure acted on the display device top, pressure conducted to first rigid gasket through the rete on display device surface, conduct to the supporting component, rethread supporting component conducts to dull and stereotyped part, whole process driver chip is located the rigid safety cover, external force can't act on driver chip's surface, and carry out the in-process of reliability test at display device, when there is internal pressure effect, the pressure that the dull and stereotyped part of pressure produced, through the supporting component buffering acting on first rigid gasket, whole process driver chip is located the rigid safety cover, pressure still can't act on driver chip's surface. Therefore, the protective cover can prevent the driving chip from being broken due to the pressure acting on the driving chip, the yield of products is guaranteed, and the service life of the products is prolonged.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.