Display device
AssigneeWuhan China Star Optoelectronics Technology Co., Ltd.
InventorsHuanli Yang, Guowei Zha, Rui Yang
Life of this patent
Estimating the term…
Abstract
A display device includes optical machines; each of the optical machines includes a lens assembly and a display assembly; the display assembly includes a display screen; the lens assembly includes: a lens group, a lens barrel with a limiting groove, a focus ring sleeved outside the lens barrel, and a bracket, wherein the lens barrel is sleeved outside the bracket; the bracket includes a convex portion accommodated in the limiting groove and connected to the focus ring; when focusing, the lens group does not move, the focus ring drives the bracket to move linearly, and the bracket drives the display screen moves linearly relative to the lens group.
Claims17
A display device, comprising two optical machines arranged symmetrically;
- wherein each of the optical machines comprises a lens assembly and a display assembly;
- and the display assembly comprises a display screen;
- wherein the lens assembly comprises:
- a lens group, wherein the display screen faces the lens group;
- a lens barrel provided with at least one limiting groove, wherein the lens group is accommodated in the lens barrel;
- a focus ring independent from and sleeved outside the lens barrel;
- and
- a bracket, wherein the lens barrel is sleeved outside the bracket, the bracket comprises at least one convex portion, one of the convex portion is accommodated in one of the limiting groove and connected to the focus ring, and the display screen is fixed on the bracket;
- wherein, during focusing, the lens group does not move relative to the lens barrel, the focus ring drives the convex portion to move linearly in the limiting groove along a length direction of the limiting groove, thereby driving the bracket to move linearly close to or away from the lens group in the lens barrel, and the bracket drives the display screen to move linearly in the lens barrel close to or away from the lens group,
- wherein the convex portion has a first external thread, the focus ring has an internal thread, and the first external thread engages with the internal thread,
- wherein the lens assembly further comprises a pressure ring, the pressure ring is fixed on an end of the lens barrel away from the display screen, the pressure ring partially covers the lens group and has a light-transmitting hole, and a part of the lens group is exposed from the light-transmitting hole, and
- wherein the lens barrel comprises a lens barrel body portion, a first limiting portion, and a stepped portion, the stepped portion and the first limiting portion are respectively fixed on opposite ends of the lens barrel body portion, the stepped portion is closer to the lens group than the first limiting portion, the first limiting portion is closer to the display screen than the stepped portion and away from the bracket body, and the focus ring is sleeved outside the lens barrel body portion and is configured to move linearly along an extending direction of the lens barrel body portion, and a moving range of the focus ring is limited by the first limiting portion and the pressure ring.
Dependencies are inferred from the claim text.