CN115933216B - Display device - Google Patents
Display deviceInfo
- Publication number
- CN115933216B CN115933216B CN202211601324.1A CN202211601324A CN115933216B CN 115933216 B CN115933216 B CN 115933216B CN 202211601324 A CN202211601324 A CN 202211601324A CN 115933216 B CN115933216 B CN 115933216B
- Authority
- CN
- China
- Prior art keywords
- lens
- slit
- electrode
- liquid crystal
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The embodiment of the invention discloses a display device, which comprises a display panel, a backlight module arranged on the backlight side of the display panel, a lens component arranged on the light emitting side of the backlight module, a lens unit comprising at least one lens at least when the display device is in a three-dimensional display state, the slit member is positioned on one side of the lens member away from the backlight module, the slit member comprises a slit unit at least when the display device is in a three-dimensional display state, the slit unit comprises at least one slit, the lens unit and the slit unit are arranged in one-to-one correspondence when the display device is in the three-dimensional display state, and light from the backlight module is converged by the lens unit and then emitted from the slit unit. According to the invention, the lens units are arranged in one-to-one correspondence with the slit units, and light from the backlight module is converged and then emitted from the slit, so that 3D display is realized, meanwhile, the loss of display brightness of the display device is reduced, and the display quality of the display device in 3D display is improved.
Description
Technical Field
The invention relates to the field of display, in particular to a display device.
Background
Currently, with the development of information society, there are increasing demands for display devices for displaying images in various manners, and new display technologies have been developed, in which 3D (Three-dimensional) display technologies are being widely focused on as they can give people strong visual impact and high visual enjoyment. The conventional 3D display device forms different images on the left and right eyes of a person to generate stereoscopic impression for the eyes of the person, and has problems of low display brightness and poor 3D imaging quality.
Therefore, a display device is needed to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a display device, which can alleviate the technical problems of low display brightness and poor 3D imaging quality of the current 3D display device.
The present invention provides a display device including:
a display panel including a plurality of pixels distributed in an array;
The backlight module is positioned on the backlight side of the display panel;
The lens component is positioned on the light emitting side of the backlight module, and at least when the display device is in a three-dimensional display state, the lens component comprises a plurality of lens units, and one lens unit comprises at least one lens;
The slit component is positioned on one side of the lens component far away from the backlight module, at least when the display device is in the three-dimensional display state, the slit component comprises a plurality of slit units, and one slit unit comprises at least one slit;
when the display device is in the three-dimensional display state, the lens units are arranged in one-to-one correspondence with the slit units, and light from the backlight module is converged by the lenses and then flows from the slit units.
Preferably, the slit member includes a first liquid crystal layer, a first electrode layer located on a side of the first liquid crystal layer close to the lens member, and a second electrode layer located on a side of the first liquid crystal layer away from the lens member;
wherein the first electrode layer includes a first electrode, the second electrode layer includes a second electrode, and the first electrode and the second electrode control the first liquid crystal layer to form the slit.
Preferably, the lens member includes a first lens layer, the first lens layer includes a second liquid crystal layer, a third electrode layer located at a side of the second liquid crystal layer close to the backlight module, and a fourth electrode layer located at a side of the second liquid crystal layer far from the backlight module;
Wherein the lens includes a first sub-lens, the third electrode layer includes a third electrode, the fourth electrode layer includes a fourth electrode, and the third electrode and the fourth electrode control the second liquid crystal layer to form the first sub-lens.
Preferably, the lens component further comprises a second lens layer located at one side of the first lens layer away from the backlight module, wherein the second lens layer comprises a third liquid crystal layer, a fifth electrode layer located at one side of the third liquid crystal layer close to the backlight module, and a sixth electrode layer located at one side of the third liquid crystal layer away from the backlight module;
wherein the lens further comprises a second sub-lens, the fifth electrode layer comprises a fifth electrode, the sixth electrode layer comprises a sixth electrode, and the fifth electrode and the sixth electrode control the third liquid crystal layer to form the second sub-lens;
The first sub-lenses and the second sub-lenses are arranged in one-to-one correspondence.
Preferably, the first sub-lens is a fresnel lens.
Preferably, the slit unit includes first slit subunits and second slit subunits alternately arranged along an arrangement direction of the slit unit, and the lens unit includes first lens subunits and second lens subunits alternately arranged along the arrangement direction of the lens unit;
the first slit subunits are arranged in one-to-one correspondence with the first lens subunits, and the second slit subunits are arranged in one-to-one correspondence with the second lens subunits;
The display device comprises a first driving period and a second driving period, wherein in the first driving period, light from the backlight module is converged by the first lens subunit and then emitted from the first slit subunit, and in the second driving period, light from the backlight module is converged by the second lens subunit and then emitted from the second slit subunit.
Preferably, the plurality of pixels of the array distribution include a plurality of pixel columns arranged along a first direction, and a plurality of pixel rows arranged along a second direction;
the extending direction of the lens and the extending direction of the slit are respectively parallel to the first direction, and the arranging direction of the lens and the arranging direction of the slit are respectively parallel to the second direction.
Preferably, each pixel row includes a plurality of pixel units, and one pixel unit includes at least one pixel;
The pixel units are arranged in one-to-one correspondence with the lens units, and the pixel units are arranged in one-to-one correspondence with the slit units.
Preferably, the lens member is located between the backlight module and the display panel, and the slit member is located between the lens member and the display panel.
Preferably, the slits are arranged in one-to-one correspondence with the lenses.
Preferably, the number of the lenses in the lens unit is decreased and then increased in an arrangement direction of the lens unit.
According to the invention, the lens units are arranged in one-to-one correspondence with the slit units, and light from the backlight module is converged and then emitted from the slit, so that 3D display is realized, meanwhile, the loss of display brightness of the display device is reduced, and the display quality of the display device in 3D display is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a first structure of a display device according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of area A of FIG. 1;
FIG. 3 is a schematic view of a first configuration of a lens component according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second configuration of a lens component according to an embodiment of the present invention;
FIG. 5 is a schematic view of a third configuration of a lens component according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention in a first driving period;
fig. 7 is a schematic structural diagram of a display device in a second driving period according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower directions of the device in actual use or operation, and specifically the directions of the drawings in the drawings, while "inner" and "outer" are used with respect to the outline of the device.
Currently, the existing 3D display device has the problems of low display brightness and poor 3D imaging quality.
Referring to fig. 1 to 7, a display device 10 according to an embodiment of the present invention includes:
a display panel 100 including a plurality of pixels 111 distributed in an array;
A backlight module 200 located at the backlight side of the display panel 100;
a lens member 300 located at the light emitting side of the backlight module 200, wherein the lens member 300 includes a plurality of lens units 310, and one of the lens units 310 includes at least one lens 301 at least when the display device 10 is in a three-dimensional display state;
A slit member 400 located on a side of the lens member 300 away from the backlight module 200, at least when the display device 10 is in the three-dimensional display state, the slit member 400 includes a plurality of slit units 410, and one of the slit units 410 includes at least one slit 401;
when the display device 10 is in the three-dimensional display state, the lens units 310 are disposed in one-to-one correspondence with the slit units 410, and the light from the backlight module 200 is converged by the lenses 301 and then emitted from the slits 401.
The invention, through the one-to-one correspondence arrangement of the lens units 310 and the slit units 410, emits light from the backlight module 200 from the slit after converging, reduces the loss of display brightness of the display device 10 while realizing 3D display, and improves the display quality of the display device 10 during 3D display.
The technical scheme of the present invention will now be described with reference to specific embodiments.
Referring to fig. 1 and 2, in the present embodiment, the slit member 400 may be a film grating, a metal grating, a liquid crystal grating, a grating formed by using black resist material, or the like.
In some embodiments, the slit member 400 is of the type of liquid crystal grating, which is advantageous for improving the imaging quality of the display device 10 in 3D display.
Referring to fig. 1 and 2, the slit member 400 includes a first liquid crystal layer 402, a first electrode layer 404 disposed on a side of the first liquid crystal layer 402 close to the lens member 300, and a second electrode layer 405 disposed on a side of the first liquid crystal layer 402 away from the lens member 300.
Wherein the first electrode layer 404 includes a first electrode, the second electrode layer 405 includes a second electrode, and the first electrode and the second electrode control the first liquid crystal layer 402 to form the slit 401.
The slit member 400 further includes a first substrate 406 and a second substrate 407 respectively located on opposite sides of the first liquid crystal layer 402, wherein the first electrode layer 404 is located on a side of the first substrate 406 close to the first liquid crystal layer 402, or the first electrode layer 404 is located on a side of the first substrate 406 far from the first liquid crystal layer 402, and the second electrode layer 405 is located on a side of the second substrate 407 close to the first liquid crystal layer 402, or the second electrode layer 405 is located on a side of the second substrate 407 far from the first liquid crystal layer 402.
The slit member 400 further includes a first polarizer layer 408 and a second polarizer layer 409 respectively disposed on opposite sides of the first liquid crystal layer 402, the first polarizer layer 408 having a first transmission axis, and the second polarizer layer 409 having a second transmission axis. The first polarizer layer 408 is located on a side of the first substrate 406 close to the first liquid crystal layer 402, or the first polarizer layer 408 is located on a side of the first substrate 406 far from the first liquid crystal layer 402, the first polarizer layer 408 may be located on the same side of the first substrate 406 as the first electrode layer 404, or the first polarizer layer 408 may be located on the same side of the first substrate 406 as the first electrode layer 404, and when the first polarizer layer 408 and the first electrode layer 404 are located on the same side of the first substrate 406, the first polarizer layer 408 is located on a side of the first electrode layer 404 close to the first substrate 406, or the first polarizer layer 408 is located on a side of the first electrode layer 404 far from the first substrate 406. The second polarizer layer 409 is located at a side of the second substrate 407 close to the first liquid crystal layer 402, or the second polarizer layer 409 is located at a side of the second substrate 407 far from the first liquid crystal layer 402, the second polarizer layer 409 may be located at a same side of the second substrate 407 as the second electrode layer 405, or the second polarizer layer 409 may be located at a same side of the second substrate 407 as the second electrode layer 405, and when the second polarizer layer 409 and the second electrode layer 405 are located at a same side of the second substrate 407, the second polarizer layer 409 is located at a side of the second electrode layer 405 close to the second substrate 407, or the second polarizer layer 409 is located at a side of the second electrode layer 405 far from the second substrate 407.
When the display device 10 is in the three-dimensional display state, the first liquid crystal layer 402 forms a first light shielding region T1 and a first light transmitting region T2 under the control of the first electrode and the second electrode, and the first light shielding region T1 and the first light transmitting region T2 are alternately arranged, so that the first light transmitting region T2 forms the slit 401. Specifically, the extending direction of the first light transmission axis of the first polarizer layer 408 is parallel to the extending direction of the second light transmission axis of the second polarizer layer 409, the first liquid crystal layer 402 includes a first liquid crystal 403, when the display device 10 is in a three-dimensional display state, the long axis of the first liquid crystal 403 in the first light transmission area T2 is perpendicular to the first substrate 406 or the second substrate 407, at this time, the first liquid crystal 403 does not change the direction of polarized light from the light transmission axis of the first polarizer layer 408, and light from the backlight module 200 exits through the first polarizer layer 408, the first liquid crystal 403 in the first light shielding area T1, and the second polarizer layer 409, and when the long axis of the first liquid crystal 403 in the first light shielding area T1 is parallel to the first substrate 406 or the second substrate 407, the first liquid crystal 403 changes the direction of polarized light from the light transmission axis of the first polarizer layer 408, and light from the backlight module 200 cannot change the direction from the first polarizer layer 409 through the first light shielding area T1.
The first electrode may be a first common electrode and the second electrode may be a first driving electrode, or the first electrode may be a first driving electrode and the second electrode may be a first common electrode. The first common electrode may be disposed in whole layer, and the first driving electrode may be disposed corresponding to the first light shielding region T1 or the first light transmitting region T2. When the first driving electrode is disposed corresponding to the first transparent region T2, the first liquid crystal 403 in the first transparent region T2 deflects under the control of the first common electrode and the first driving electrode when the display device 10 is in the three-dimensional display state, so that the long axes of the molecules of the first liquid crystal 403 in the first transparent region T2 are perpendicular to the first substrate 406 or the second substrate 407, the first driving electrode is not disposed in the first light shielding region T1, the long axis of the first liquid crystal 403 in the first light shielding region T1 is kept parallel to the first substrate 406 or the second substrate 407, and when the display device 10 is in the three-dimensional display state, the long axes of the molecules of the first liquid crystal 403 in the first light shielding region T1 deflect under the control of the first common electrode and the first driving electrode, so that the long axes of the first liquid crystal 403 in the first light shielding region T1 are kept parallel to the first substrate 406 or the second substrate 407, and when the first driving electrode is disposed corresponding to the first light shielding region T1, the long axes of the first liquid crystal 403 in the first light shielding region T1 are not disposed perpendicular to the first substrate 406 or the second substrate 407.
When the display device 10 is in the second state, the display device 10 is in the 2D display state, the long axes of the first liquid crystal 403 in the first light shielding region T1 and the first liquid crystal 403 in the first light transmitting region T2 are perpendicular to the first substrate 406 or the second substrate 407, and the polarized light generated by the backlight module 200 and passing through the first polarizer layer 408 does not change the polarization direction after passing through the first liquid crystal 403, so that the light exits from the second polarizer layer 409, which is beneficial to ensuring the brightness of the display device 10 in the 2D display state.
When the display device 10 is in the second state, if the first driving electrode is disposed corresponding to the first transparent region T2, the first liquid crystal 403 in the first transparent region T2 is deflected under the control of the first common electrode and the first driving electrode, so that the long axis of the first liquid crystal 403 in the first transparent region T2 is perpendicular to the first substrate 406 or the second substrate 407, and the display device 10 further includes a second driving electrode disposed corresponding to the first light-shielding region T1, wherein the first liquid crystal 403 in the first light-shielding region T1 is deflected under the control of the first common electrode and the second driving electrode, so that the long axis of the first liquid crystal 403 in the first light-shielding region T1 is perpendicular to the first substrate 406 or the second substrate 407. The second driving electrode and the first driving electrode may be arranged on the same layer, and the first driving electrode, the second driving electrode and the first common electrode may be transparent electrodes, and may be made of the same material, for example, transparent indium tin oxide material.
When the display device 10 is in the second state, if the first driving electrode is disposed corresponding to the first light shielding region T1, no driving voltage is applied between the first common electrode and the first driving electrode by the first liquid crystal 403 in the first light shielding region T1, so that the long axis of the first liquid crystal 403 in the first light shielding region T1 and the first substrate 406 or the second substrate 407 are restored to be perpendicular, and the long axis of the first liquid crystal 403 in the first light transmitting region T2 is kept perpendicular to the first substrate 406 or the second substrate 407 without the driving voltage applied between the first driving electrode and the first common electrode, which is beneficial to reducing the power consumption of the display device 10 and improving the display brightness of the backlight module 200.
In some embodiments, the material of the lens 301 may include acrylic material or other polymer material, and in this case, the lens 301 may be a conventional optical lens (e.g., a convex lens, etc.), a fresnel lens, etc. The type of the lens 301 may also be a liquid crystal lens, or a compound type lens formed by compounding a liquid crystal lens with a conventional optical lens.
Referring to fig. 3 to 7, in some embodiments, the lens member 300 is a liquid crystal lens, which is beneficial to improving the brightness enhancement of the display device 10 during 3D display.
Referring to fig. 3, the lens member 300 includes a first lens layer including a second liquid crystal layer 302a, a third electrode layer 304a disposed on a side of the second liquid crystal layer 302a near the backlight module 200, and a fourth electrode layer 305a disposed on a side of the second liquid crystal layer 302a far from the backlight module 200.
Wherein the lens 301 includes a first sub-lens, the third electrode layer 304a includes a third electrode, the fourth electrode layer 305a includes a fourth electrode, and the third electrode and the fourth electrode control the second liquid crystal layer 302a to form the first sub-lens.
Referring to fig. 3, the lens member 300 further includes a third substrate 306 and a fourth substrate 307 on opposite sides of the second liquid crystal layer 302a, wherein the third electrode layer 304a is located on a side of the third substrate 306 close to the second liquid crystal layer 302a, or the third electrode layer 304a is located on a side of the third substrate 306 away from the second liquid crystal layer 302a, and the fourth electrode layer 305a is located on a side of the fourth substrate 307 close to the second liquid crystal layer 302a, or the fourth electrode layer 305a is located on a side of the fourth substrate 307 away from the second liquid crystal layer 302 a.
Referring to fig. 3, the lens member 300 further includes a third polarizer layer 308 and a fourth polarizer layer 309 respectively disposed on opposite sides of the second liquid crystal layer 302a, the third polarizer layer 308 having a third transmission axis, and the fourth polarizer layer having a fourth transmission axis. The third polarizer layer 308 is located on a side of the third substrate 306 close to the second liquid crystal layer 302a, or the third polarizer layer 308 is located on a side of the third substrate 306 far from the second liquid crystal layer 302a, the third polarizer layer 308 may be located on the same side of the third substrate 306 as the third electrode layer 304a, or the third polarizer layer 308 is located on a side of the third electrode layer 304a close to the third substrate 306, or the third polarizer layer 308 is located on a side of the third electrode layer 304a far from the third substrate 306 when the third polarizer layer 308 is located on the same side of the third substrate 306 as the third electrode layer 304 a. The fourth polarizer layer 309 is located on a side of the fourth substrate 307 close to the second liquid crystal layer 302a, or the fourth polarizer layer 309 is located on a side of the fourth substrate 307 away from the second liquid crystal layer 302a, the fourth polarizer layer 309 may be located on the same side of the fourth substrate 307 as the fourth electrode layer 305a, or the fourth polarizer layer 309 is located on a side of the fourth electrode layer 305a close to the fourth substrate 307, or the fourth polarizer layer 309 is located on a side of the fourth electrode layer 305a away from the fourth substrate 307 when the fourth polarizer layer 309 and the fourth electrode layer 305a are located on the same side of the fourth substrate 307.
When the display device 10 is in the three-dimensional display state, the second liquid crystal layer 302a forms a second light shielding region T3 and a second light transmitting region T4 under the control of the third electrode and the fourth electrode, and the second light shielding region T3 and the second light transmitting region T4 are alternately arranged, so that the second light transmitting region T4 forms the first sub-lens. Specifically, the extending direction of the third transmission axis of the third polarizer layer 308 is perpendicular to the extending direction of the fourth transmission axis of the fourth polarizer layer 309, the second liquid crystal layer 302a includes a second liquid crystal 303a, when the display device 10 is in a three-dimensional display state, the long axis of the second liquid crystal 303a in the second light shielding region T3 is perpendicular to the third substrate 306 or the fourth substrate 307, at this time, the second liquid crystal 303a does not change the direction of the polarized light from the transmission axis of the third polarizer layer 308, the light from the backlight module 200 cannot exit from the fourth polarizer layer 309 after passing through the third polarizer layer 308 and the second liquid crystal 303a in the second light shielding region T3, the long axis of the second liquid crystal 303a in the second light transmitting region T4 is not perpendicular to the third substrate 306 or the fourth substrate 307, the second liquid crystal 303a changes the direction of the polarized light from the transmission axis of the third polarizer layer 308, the light from the backlight module 200 after passing through the second polarizer layer 308, and the light from the second liquid crystal 303a in the second light shielding region T3 can not exit from the fourth polarizer layer 309, and the light from the light transmitting region 200 a after passing through the second polarizer layer 200 and the second polarizer layer 303a in the light transmitting region 4.
When the slit member 400 is a liquid crystal grating, if the lens member 300 includes only the first lens layer, the extending direction of the first transmission axis of the first polarizer layer 408 is parallel to the extending direction of the fourth transmission axis of the fourth polarizer layer 309, so that the light converged by the first sub-lens passes through the first polarizer layer 408.
The third electrode may be a second common electrode and the fourth electrode may be a third driving electrode, or the third electrode may be a third driving electrode and the fourth electrode may be a second common electrode. The second common electrode may be disposed in whole layer, and the third driving electrode may be disposed corresponding to the second light shielding region T3 or the second light transmitting region T4. When the third driving electrode is disposed corresponding to the second transparent region T4, the second liquid crystal 303a in the second transparent region T4 deflects under the control of the second common electrode and the third driving electrode when the display device 10 is in the three-dimensional display state, so that the long axis of the second liquid crystal 303a in the second transparent region T4 is not perpendicular to the third substrate 306 or the fourth substrate 307, the third driving electrode is not disposed in the second light shielding region T3, the long axis of the second liquid crystal 303a in the second light shielding region T3 is kept perpendicular to the third substrate 306 or the fourth substrate 307, and when the third driving electrode is disposed corresponding to the second light shielding region T3, the second liquid crystal 303a in the second light shielding region T3 deflects under the control of the second common electrode and the third electrode, so that the long axis of the second liquid crystal 303a in the second light shielding region T3 is perpendicular to the second substrate 306 or the fourth substrate 307, and the long axis of the second liquid crystal 303a in the second light shielding region T3 is not disposed in the third light shielding region T3, so that the long axis of the second liquid crystal 303a is not disposed in the third substrate 307.
When the display device 10 is in the second state, the display device 10 is in the 2D display state, the long axis of the second liquid crystal 303a in the second light-transmitting region T4 is kept in a non-perpendicular state with the third substrate 306 or the fourth substrate 307 to converge the light from the backlight module 200 to the slit member 400, which is advantageous for improving the brightness of the display device 10 in the 2D display state, or the long axes of the second liquid crystal 303a in the second light-transmitting region T4 and the second light-shielding region T3 are parallel with the third substrate 306 or the fourth substrate 307, which is advantageous for improving the brightness of the display device 10 in the 2D display state, because as much light as possible exits from the lens member 300 to the slit member 400.
Referring to fig. 4, in some embodiments, the lens member 300 further includes a second lens layer located on a side of the first lens layer away from the backlight module 200, the second lens layer includes a third liquid crystal layer 302b, a fifth electrode layer 304b located on a side of the third liquid crystal layer 302b near the backlight module 200, and a sixth electrode layer 305b located on a side of the third liquid crystal layer 302b away from the backlight module 200.
The lens 301 further includes a second sub-lens, the fifth electrode layer 304b includes a fifth electrode, the sixth electrode layer 305b includes a sixth electrode, the fifth electrode and the sixth electrode control the third liquid crystal layer 302b to form the second sub-lens, and the first sub-lens and the second sub-lens are arranged in a one-to-one correspondence. By the one-to-one correspondence between the first sub-lenses and the second sub-lenses, the converging effect of the lens member 300 on the light from the backlight module 200 is improved, so that more light can pass through the slit member 400, and the display brightness of the display device 10 in 3D display is improved.
The lens member 300 further includes a fifth substrate and a sixth substrate on opposite sides of the third liquid crystal layer 302b, the positions of which are easily understood and not shown. The fifth electrode layer 304b is located on a side of the fifth substrate close to the third liquid crystal layer 302b, or the fifth electrode layer 304b is located on a side of the fifth substrate far from the third liquid crystal layer 302b, and the sixth electrode layer 305b is located on a side of the sixth substrate close to the third liquid crystal layer 302b, or the sixth electrode layer 305b is located on a side of the sixth substrate far from the third liquid crystal layer 302 b.
The lens member 300 further includes a fifth polarizer layer and a sixth polarizer layer respectively disposed on opposite sides of the third liquid crystal layer 302b, the fifth polarizer layer having a fifth transmission axis, the sixth polarizer layer having a sixth transmission axis, and the positions of the fifth polarizer layer and the sixth polarizer layer being easily understood and not shown. The fifth polarizer layer is located on a side of the fifth substrate close to the third liquid crystal layer 302b, or the fifth polarizer layer is located on a side of the fifth substrate far from the third liquid crystal layer 302b, the fifth polarizer layer may be located on the same side of the fifth substrate as the fifth electrode layer 304b, or the fifth polarizer layer may be located on the same side of the fifth substrate as the fifth electrode layer 304b, and when the fifth polarizer layer is located on the same side of the fifth substrate as the fifth electrode layer 304b, the fifth polarizer layer is located on a side of the fifth electrode layer 304b close to the fifth substrate, or the fifth polarizer layer is located on a side of the fifth electrode layer 304b far from the fifth substrate. The sixth polarizer layer is located on a side of the sixth substrate close to the third liquid crystal layer 302b, or the sixth polarizer layer is located on a side of the sixth substrate far from the third liquid crystal layer 302b, the sixth polarizer layer may be located on the same side of the sixth substrate as the sixth electrode layer 305b, or the sixth polarizer layer may be located on the same side of the sixth substrate as the sixth electrode layer 305b, and when the sixth polarizer layer is located on the same side of the sixth substrate as the sixth electrode layer 305b, the sixth polarizer layer is located on a side of the sixth electrode layer 305b close to the sixth substrate, or the sixth polarizer layer is located on a side of the sixth electrode layer 305b far from the sixth substrate.
Referring to fig. 4, when the display device 10 is in the three-dimensional display state, the third liquid crystal layer 302b forms a third light shielding region T5 and a third light transmitting region T6 under the control of the fifth electrode and the sixth electrode, and the third light shielding region T5 and the third light transmitting region T6 are alternately arranged, so that the third light transmitting region T6 forms the second sub-lens. Specifically, the extending direction of the fifth transmission axis of the fifth polarizer layer is perpendicular to the extending direction of the sixth transmission axis of the sixth polarizer layer, the third liquid crystal layer 302b includes a third liquid crystal 303b, when the display device 10 is in a three-dimensional display state, the long axis of the third liquid crystal 303b in the third light shielding region T5 is perpendicular to the fifth substrate or the sixth substrate, at this time, the third liquid crystal 303b does not change the direction of polarized light from the transmission axis of the fifth polarizer layer, the light from the first lens layer cannot exit from the sixth polarizer layer after passing through the fifth polarizer layer, the third liquid crystal 303b in the third light shielding region T5, the long axis of the third liquid crystal 303b in the third light transmitting region T6 is not perpendicular to the fifth substrate or the sixth substrate, the third liquid crystal 303b changes the direction of polarized light from the transmission axis of the fifth polarizer layer, the light from the third lens layer passes through the third lens layer T6, and further passes through the third lens member 400 and the third light transmitting region 303b after passing through the third lens layer. The extending direction of the fourth light transmission axis of the fourth polarizer layer 309 is parallel to the extending direction of the fifth light transmission axis of the fifth polarizer layer, so that the light from the backlight module 200 enters the second sub-lens to be further converged after being converged by the first sub-lens.
When the slit member 400 is a liquid crystal grating, if the lens member 300 includes only the first lens layer and the second lens layer, the extending direction of the first transmission axis of the first polarizer layer 408 is parallel to the extending direction of the sixth transmission axis of the sixth polarizer layer, so that the light converged by the first sub-lens and the second sub-lens passes through the first polarizer layer 408.
The fifth electrode may be a third common electrode, the sixth electrode may be a fourth driving electrode, or the fifth electrode may be a fourth driving electrode, and the sixth electrode may be a third common electrode. The third common electrode may be disposed in whole layer, and the fourth driving electrode may be disposed corresponding to the third light shielding region T5 or the third light transmitting region T6. When the display device 10 is in the three-dimensional display state, the third liquid crystal 303b in the third light-transmitting region T6 deflects under the control of the third common electrode and the fourth driving electrode so that the long axis of the third liquid crystal 303b in the third light-transmitting region T6 is not perpendicular to the fifth substrate or the sixth substrate, the third light-shielding region T5 does not have the fourth driving electrode correspondingly arranged therein, the long axis of the third liquid crystal 303b in the third light-shielding region T5 is kept perpendicular to the fifth substrate or the sixth substrate, and when the display device 10 is in the three-dimensional display state, the third liquid crystal 303b in the third light-shielding region T5 deflects under the control of the third common electrode and the fourth electrode so that the long axis of the third liquid crystal 303b in the third light-shielding region T5 is kept perpendicular to the fifth substrate or the sixth substrate, and the long axis of the third liquid crystal 303b in the third light-shielding region T5 is not correspondingly arranged therein.
When the display device 10 is in the second state, the display device 10 is in the 2D display state, the long axis of the third liquid crystal 303b in the third light-transmitting region T6 is kept in a non-perpendicular state with the fifth or sixth substrate to converge the light from the backlight unit 200 toward the slit member 400, which is advantageous for improving the brightness of the display device 10 in the 2D display state, or the long axes of the third liquid crystal 303b in the third light-transmitting region T6 and the third light-shielding region T5 are parallel to the fifth or sixth substrate, which is advantageous for improving the brightness of the display device 10 in the 2D display state, because as much light as possible exits from the lens member 300 to the slit member 400.
The lenses 301 have a focus on the primary optical axis of the lenses 301, the primary optical axis of at least one of the lenses 301 in each of the lens units 310 passing through the slit of the corresponding slit unit 410, preferably the focus of at least one of the lenses 301 in each of the lens units 310 being located in the slit 401 of the corresponding slit unit 410, more preferably the primary optical axis of each of the lenses 301 in each of the lens units 310 passing through the slit 401 of the corresponding slit unit 410, most preferably the focus of each of the lenses 301 in each of the lens units 310 being located in the slit 401 of the corresponding slit unit 410. Specifically, the first sub-lens has a first focal point, and the first focal point is located on a first main optical axis of the first sub-lens. When the display device 10 is in the three-dimensional display state, a value of a first angle formed by the long axis of the second liquid crystal 303a in the second light-transmitting region T4 and the third substrate 306 gradually increases along a direction away from the first main optical axis, the first angle is located at a side of the second liquid crystal 303a near the first main optical axis, and the long axis of the second liquid crystal 303a located on the first main optical axis is parallel to the third substrate 306. When the lens 301 further comprises the second sub-lens, the second sub-lens has a second focal point, which is located on a second main optical axis of the second sub-lens. When the display device 10 is in the three-dimensional display state, a value of a second angle formed by the long axis of the third liquid crystal 303b in the third light-transmitting region T6 and the fifth substrate gradually increases along a direction away from the second main optical axis, the second angle is located at a side of the third liquid crystal 303b near the second main optical axis, and the long axis of the third liquid crystal 303b located on the second main optical axis is parallel to the fifth substrate. When the display device 10 is in the three-dimensional display state, when the lens 301 includes only the first sub-lens, the light from the backlight module 200 passes through the first sub-lens to form a first outgoing direction light and a second outgoing direction light by changing the first angle formed by the second liquid crystal 303a located at both sides of the first main optical axis and the third substrate 306, and the first outgoing direction light and the second outgoing direction light pass through the slit member 400 and are emitted out of the display device 10 to form a left-eye display screen and a right-eye display screen, respectively, thereby forming a 3D display. Or the display device 10 is in the three-dimensional display state, when the lens 301 includes only the first sub-lens and the second sub-lens, by a change in the first angle formed by the second liquid crystal 303a located on both sides of the first main optical axis and the third substrate 306 and a change in the second angle formed by the third liquid crystal 303b located on both sides of the second main optical axis and the fifth substrate, the light from the backlight module 200 is passed through the first sub-lens and the second sub-lens to form the first light and the second light, and the first light and the second light pass through the slit member 400, after the display device 10 is output, a left-eye display screen and a right-eye display screen are formed, respectively, so that a 3D display is formed.
Referring to fig. 5, in some embodiments, the first sub-lens may be a liquid crystal fresnel lens. When the first sub-lenses are liquid crystal fresnel lenses, each of the second light-transmitting areas T4 includes a first brightness area and a second brightness area alternately arranged, the long axis of the second liquid crystal 303a in the first brightness area is parallel to the third substrate 306, and the long axis of the second liquid crystal 303a in the second brightness area is not perpendicular to and parallel to the third substrate 306. By setting the first sub-lens as a liquid crystal fresnel lens, it is beneficial to enhance the transmittance of light rays of the backlight module 200, and further enhance the display brightness of the display device 10 during 3D display.
In some embodiments, the slit member 400 is a liquid crystal grating, and the lens member 300 is a liquid crystal lens, which is advantageous in improving display quality and display brightness of the display device 10 in 3D display while switching between 2D display and 3D display is achieved. When the slit member 400 is of a type of liquid crystal grating and the lens member 300 is of a type of liquid crystal lens, the thickness of the slit member 400 may be 0.1 to 10 micrometers, which is advantageous in ensuring a 3D display effect of the display device 10 while minimizing the thickness of the display device 10.
Referring to fig. 6 and 7, in some embodiments, the slit unit 410 includes first slit subunits 411 and second slit subunits 412 alternately arranged along an arrangement direction of the slit unit 410, and the lens unit 310 includes first lens subunits 311 and second lens subunits 312 alternately arranged along the arrangement direction of the lens unit 310. The first slit subunits 411 and the first lens subunits 311 are arranged in one-to-one correspondence, and the second slit subunits 412 and the second lens subunits 312 are arranged in one-to-one correspondence. The display device 10 includes a first driving period and a second driving period, wherein in the first driving period, light from the backlight module 200 is converged by the first lens subunit 311 and then exits from the first slit subunit 411, and in the second driving period, light from the backlight module 200 is converged by the second lens subunit 312 and then exits from the second slit subunit 412. By setting the first driving period and the second driving period, the display device 10 displays different pictures in the first driving period and the second driving period, thereby realizing the 3D display effect.
In some embodiments, the plurality of pixels 111 of the array distribution includes a plurality of pixel columns arranged along the first direction, and a plurality of pixel rows arranged along the second direction. Wherein, the extending direction of the lens 301 and the extending direction of the slit 401 are parallel to the first direction, and the arranging direction of the lens 301 and the arranging direction of the slit 401 are parallel to the second direction.
In some embodiments, each of the pixel rows includes a plurality of pixel units, one of the pixel units including at least one pixel 111. The pixel units are disposed in one-to-one correspondence with the lens units 310, and the pixel units are disposed in one-to-one correspondence with the slit units 410.
The same column of the pixels 111 corresponds to the same lens unit 310, and the same column of the pixels 111 corresponds to the same slit unit 410.
In some embodiments, the width of one slit 401 is greater than or equal to the sum of the widths of two pixels 111 arranged along the second direction, so as to facilitate the implementation of the slit 401 in the process and improve the product yield of the display device 10. Accordingly, the width of one of the lens units 310 is greater than or equal to the sum of the widths of two of the pixels 111 arranged along the second direction.
In some embodiments, the width of one slit 401 is greater than or equal to 10 micrometers and less than or equal to 1 millimeter, and the spacing between adjacent slits 401 is greater than or equal to 10 micrometers and less than or equal to 1 millimeter, e.g., the spacing between adjacent slits 401 may be 250 micrometers, 500 micrometers, etc.
In some embodiments, the slits 401 are disposed in one-to-one correspondence with the lenses 301. That is, the number of slits 401 in one slit unit 410 is the same as the number of lenses 301 in the lens unit 310 corresponding to the slit unit 410, which is beneficial to maximizing the emission rate of the light beam of the backlight module 200 emitted out of the display device 10 after passing through the lens unit 310 and the slit unit 410, and improving the brightness of the display device 10 during 3D display.
In some embodiments, the number of the lenses 301 in the lens unit 310 is decreased and then increased along the arrangement direction of the lens unit 310. The display device 10 includes a central display area and a peripheral display area disposed around the central display area, and since the light from the central display area and the light from the peripheral display area have different viewing angles for the same user viewing the display device 10, the light from the peripheral display area requires a larger viewing angle, and thus the number of the lenses 301 in the lens unit 310 located in the peripheral display area is greater than the number of the lenses 301 located in the central display area. The number of slits 401 in the slit unit 410 may be maintained constant in the central display area and the peripheral display area, and accordingly, a ratio of the number of lenses 301 in the lens unit 310 located in the peripheral display area to the number of slits 401 in the corresponding slit unit 410 is greater than a ratio of the number of lenses 301 in the lens unit 310 located in the central display area to the number of slits 401 in the corresponding slit unit 410.
The backlight module 200 may be a collimated backlight module or a non-collimated backlight module, and when the backlight module 200 is a non-collimated backlight module, the number of the lenses 301 in one light-transmitting unit is greater than the number of the slits 401 in the corresponding slit unit 410, so as to increase the viewing angle of the display device 10.
In some embodiments, the lens member 300 is located between the backlight module 200 and the display panel 100, or the lens member 300 is located at a side of the display panel 100 away from the backlight module 200. The slit member 400 is positioned between the lens member 300 and the display panel 100, or the slit member 400 is positioned at a side of the display panel 100 away from the backlight unit 200. Preferably, the lens member 300 is located between the backlight module 200 and the display panel 100, and the slit member 400 is located between the lens member 300 and the display panel 100, so as to avoid that the slit member 400, the lens member 300, etc. are observed, or that crosstalk, moire, etc. possibly existing in the slit member 400 or the lens member 300 are observed, which affects the quality of use of the display device 10.
In the embodiment of the invention, the lens units 310 are arranged in one-to-one correspondence with the slit units 410, so that the light from the backlight module 200 is converged and then emitted from the slit 401, thereby reducing the loss of display brightness of the display device 10 and improving the display quality of the display device 10 during 3D display while realizing 3D display.
The embodiment of the invention discloses a display device, which comprises a display panel, a backlight module arranged on the backlight side of the display panel, and a lens component arranged on the light emitting side of the backlight module, wherein the lens component comprises a lens unit at least when the display device is in a three-dimensional display state, the lens unit comprises at least one lens, a slit component arranged on one side of the lens component away from the backlight module, the slit component comprises a slit unit at least when the display device is in the three-dimensional display state, the slit unit comprises at least one slit, the lens units are arranged in one-to-one correspondence with the slit units when the display device is in the three-dimensional display state, and light from the backlight module is converged by the lens units and then emitted from the slit unit. According to the invention, the lens units are arranged in one-to-one correspondence with the slit units, and light from the backlight module is converged and then emitted from the slit, so that 3D display is realized, meanwhile, the loss of display brightness of the display device is reduced, and the display quality of the display device in 3D display is improved.
While the present invention has been described in detail with reference to the embodiments of the present invention, specific examples are provided herein to illustrate the principles and embodiments of the present invention, and the above examples are provided to assist in understanding the method and core concept of the present invention, and to those skilled in the art, based on the concepts of the present invention, there are variations in the specific embodiments and application ranges, so that the disclosure should not be construed as limiting the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211601324.1A CN115933216B (en) | 2022-12-13 | 2022-12-13 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211601324.1A CN115933216B (en) | 2022-12-13 | 2022-12-13 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115933216A CN115933216A (en) | 2023-04-07 |
| CN115933216B true CN115933216B (en) | 2025-07-22 |
Family
ID=86653841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211601324.1A Active CN115933216B (en) | 2022-12-13 | 2022-12-13 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115933216B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061821A (en) * | 2006-12-28 | 2008-07-03 | 엘지디스플레이 주식회사 | Video display device |
| CN105842922A (en) * | 2016-05-30 | 2016-08-10 | 深圳市国显科技有限公司 | Light redirection type energy-saving liquid crystal display |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI292833B (en) * | 2006-05-04 | 2008-01-21 | Ind Tech Res Inst | Image display apparatur |
| WO2011088615A1 (en) * | 2010-01-20 | 2011-07-28 | 深圳超多维光电子有限公司 | Stereoscopic display device and display method |
| CN104777696A (en) * | 2015-05-08 | 2015-07-15 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2022
- 2022-12-13 CN CN202211601324.1A patent/CN115933216B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061821A (en) * | 2006-12-28 | 2008-07-03 | 엘지디스플레이 주식회사 | Video display device |
| CN105842922A (en) * | 2016-05-30 | 2016-08-10 | 深圳市国显科技有限公司 | Light redirection type energy-saving liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115933216A (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101836460B (en) | Autostereoscopic display device | |
| US7630131B2 (en) | Image display apparatus and optical member therefor | |
| KR101577238B1 (en) | Stereography Display Device using by liquid crystal lens electrically driven | |
| JP5528846B2 (en) | Liquid crystal lens and display device | |
| KR101128519B1 (en) | High resolution autostereoscopic display | |
| TWI574096B (en) | Beam-shaping device | |
| US6445406B1 (en) | Stereoscopic image display apparatus whose observation area is widened | |
| CN103984110B (en) | Multi-View Display | |
| JP5197852B2 (en) | Stereoscopic image display device | |
| US8648792B2 (en) | Autostereoscopic display device | |
| US10598947B2 (en) | Three-dimensional display panel, three-dimensional display apparatus having the same, and fabricating method thereof | |
| US5608551A (en) | Display panel assembly with microlens structure | |
| CN101939998A (en) | Autostereoscopic display devices | |
| JPWO2014196125A1 (en) | Image display device and liquid crystal lens | |
| JP5938720B2 (en) | Optical deflection element and image display apparatus using the same | |
| CN106291959B (en) | A kind of virtual display panel and display device | |
| JP5942150B2 (en) | Image display device | |
| CN206115049U (en) | Virtual display panel and display device | |
| CN107144973A (en) | Compact column mirror grating formula bore hole 3D display panels | |
| CN115933216B (en) | Display device | |
| JP5318014B2 (en) | 3D display device | |
| CN107179612B (en) | A Novel Crosstalk-Free and Resolution-Loss Free 3D Display | |
| CN117518519B (en) | A three-dimensional display device with arc-shaped viewpoint arrangement | |
| JP2005091445A (en) | Image display device | |
| JP5938647B2 (en) | Image display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |