CN108520702B - Display device and electronic product - Google Patents

Referring to fig. 1 to 4, a

100 according to an embodiment of the present invention includes a

110, a

120, a

130, and a reel mechanism.

The

110 includes a

111 and a curtain-

112. The

111 is a core component of the

100, and is used for displaying images. Preferably, the

111 is a flexible display touch screen, that is, the flexible display screen integrates both a display function and a touch function.

The curtain-shaped supporting

112 mainly serves to support the

111, so that the

111 can still maintain a certain stiffness under the action of external pressure. A curtain-

112 is positioned behind the

111.

The

110 is divided into a

101 and a

102 in the winding direction. The

101 is always in the deployed state. That is, the

101 of the

110 is not wound by the reel mechanism; the

102 may be wound and deployed, or may be unwound and deployed. That is, winding is started from the side of the

102 away from the

101, that is, the side is the winding start side.

Wherein the

120 mainly functions to support the

101 of the

110. Since the

101 is always in the expanded state, the

120 always supports the

101. Specifically, the

120 is fixedly coupled with the

101 of the

110. Preferably, the end of the

110 remote from the

102 is secured to the

120, while the other portions are not secured. Of course, it is understood that the present invention is not limited to the above-mentioned position, and the

102 may be fixed in a manner that the first portion does not slip during the unwinding or winding process.

The main function of the

130 is to support the

102 of the

110. That is, when the

102 is in the deployed state, the

130 is supported on the back of the

102.

The

130 is mounted on a side of the

120 and can slide relative to the

120. When the

102 is in the winding state, the

102 does not need to be supported by the

130, and then the

130 slides towards the

120, so that the volume of the

100 is reduced; when the

102 is in the unfolded state, the

102 needs to be supported by the

130, and the

130 slides away from the

120, so that the

130 supports the

102 in the unfolded state.

Wherein the main function of the reel mechanism is to wind the

102 of the

110. Specifically, the reel mechanism is mounted at an end of the

130 away from the

120, so that the reel mechanism can start winding from a side of the

102 away from the

101.

Specifically, the reel mechanism includes a

141, a

142 for driving the

141 to rotate by a preload, and a

143 for supporting the

142. The

142 may be configured as a spring clip or other elastic element.

The

143 is fixed to the

130, so that the entire reel mechanism moves together with the

130 in a direction toward or away from the

120. When the

141 is rotated and wound by the pre-tightening force of the

141, the non-winding side of the

110 is fixed to the

120, and the

120 is driven to move toward the

120 by the force generated by winding, so that the

130 also moves toward the

120.

The

130 has a retracted position and an extended position; when the

130 is in the retracted position, the

102 is wound by the reel mechanism; when the

130 is in the deployed position, the

102 is deployed to overlie the

130.

In one embodiment, the

112 comprises a plurality of metal strips arranged in parallel and connected to each other. This further improves the support of the

112 and facilitates the winding of the

112.

In one embodiment, the roll-up

110 further comprises an adhesive layer (not shown) for adhering the

111 and the curtain-

112 together; the adhesive layer is located between the

111 and the

112. This may better combine the

111 with the curtain-

112 to facilitate the winding of the winding

110. Of course, it is understood that the adhesive layer may not be provided, and only the two ends of the curtain-shaped supporting layer are fixed to the flexible display screen.

Preferably, the bonding end of the

111 is fixed with the fixed

120. Thus, the bonding end is prevented from being wound, damage caused by winding the bonding end is avoided, and the reliability and the service life of the whole display device are improved.

In one embodiment, the

130 includes two parallel sliding

131. Further, both ends of the support shaft are fixed to an end of the

131 away from the fixed

120.

In order to further reduce the volume of the

100, an insertion cavity for inserting the sliding

131 is formed at the side of the fixed

120. This makes it possible to effectively use the space inside the fixed

120, thereby making the

100 smaller in size in the collapsed state; in addition, the inserting cavity can further guide the sliding

131 to move, so that the sliding

131 can move more stably; meanwhile, the sliding

131 is located in the insertion cavity in the contraction state, so that the risk that the sliding

131 is damaged due to external impact is avoided.

In one embodiment, the fixed

120 is provided with a locking

160 for locking the

130 in the extended position. When the locking

160 locks the

130 and the fixed

120, the

130 cannot slide relative to the fixed

120. When the locking

160 releases the

130 from the fixed

120, the

130 can be slid with respect to the fixed

120.

In one embodiment, the reel mechanism further includes a fixed

146 fixed to one end of the supporting

143, and a

145 supported at the other end of the supporting

143; the

142 is sleeved on the supporting

143, and one end of the

142 is fixed on the fixed

146, and the other end is fixed on the

145 to drive the

141 to rotate through the

145.

Referring to fig. 1, when the display device is in a contracted state, if the

111 needs to be completely unfolded, the

130 is pulled to be pulled outwards away from the fixed

120, the

130 drives the

143 and the

141 to move outwards, the

141 rotates and unreels under the action of the outwards moving force, and the

102 of the winding

110 is slowly unfolded; meanwhile, the torsion force of the

141 deforms the

142, thereby generating a pre-tightening force.

Until the

130 reaches a predetermined position, the locking

160 locks the

130 so that the

130 cannot slide relative to the fixed

120. Referring to fig. 2, at this time, the

101 of the winding

110 is supported by the fixed

120, the

102 of the entire winding

110 is completely unwound, the

102 is supported by the

130, and the back surface of the

111 of the

102 is supported by the curtain-shaped

112, so that the

111 has certain stiffness to meet the touch operation or other operation requirements.

When the display device needs to be retracted, the

160 is pressed down to release the lock. Under the action of the pre-tightening force of the

142, the

141 rotates to wind, and the acting force generated by winding causes the reel sleeve and the supporting

143 to move along the direction close to the fixed

120, thereby driving the

130 to move towards the direction close to the fixed

120, until the

130 can not further approach the fixed

120.

1. A display device, comprising:

a winding sheet including a first portion and a second portion in a winding direction; the winding sheet comprises a flexible display screen and a curtain-shaped supporting layer positioned on the back of the flexible display screen, wherein the curtain-shaped supporting layer comprises a plurality of metal strips which are arranged in parallel and connected in sequence;

a fixed support for supporting a first portion of the winding sheet and fixedly connected to the first portion;

a movable support capable of supporting a second portion of the wound sheet; the movable support body is arranged on the fixed support body and can slide relative to the fixed support body; the movable supporting body comprises two sliding rails which are arranged in parallel, and the side edge of the fixed supporting body is provided with an inserting cavity into which the sliding rails are inserted;

a reel mechanism for winding a second portion of the winding sheet; the reel mechanism is arranged at one end of the movable support body, which is far away from the fixed support body; the movable support body has a retracted position and an extended position; when the movable support is in the retracted position, the second portion is wound by a reel mechanism; the second portion is deployed overlying the movable support when the movable support is in the deployed position;

the locking operation part is arranged on the outer surface of the fixed support body, and is used for locking the movable support body when the movable support body reaches a specified position, and the locking operation part is also used for releasing locking when being pressed down;

the reel mechanism comprises a reel sleeve, an elastic element and a supporting shaft, wherein the elastic element drives the reel sleeve to rotate and wind through pretightening force; the supporting shaft is fixed on the movable supporting body, and two ends of the supporting shaft are fixed at one end, far away from the fixed supporting body, of the sliding rail.

2. The display device of claim 1, wherein the bonding end of the flexible display screen is fixed with the fixed support.

3. The display device according to claim 1, wherein the elastic member comprises a torsion spring, and the reel mechanism further comprises a fixed block fixed to one end of the support shaft and a movable block supported to the other end of the support shaft; the torsion spring is sleeved on the supporting shaft, one end of the torsion spring is fixed on the fixed block, and the other end of the torsion spring is fixed on the movable block so as to drive the reel sleeve to rotate through the movable block.

4. The display device of claim 1, wherein the wound sheet further comprises an adhesive layer for adhering the flexible display screen to the curtain support layer; the adhesive layer is positioned between the flexible display screen and the curtain-shaped supporting layer.

5. An electronic product comprising the display device according to any one of claims 1 to 4.

6. The electronic product according to claim 5, wherein the electronic product is a mobile phone or a tablet computer.