CN106292060B - Luminous liquid crystal panel, liquid crystal display device and foreground light source of display terminal - Google Patents
Luminous liquid crystal panel, liquid crystal display device and foreground light source of display terminal Download PDFInfo
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- CN106292060B CN106292060B CN201510938132.3A CN201510938132A CN106292060B CN 106292060 B CN106292060 B CN 106292060B CN 201510938132 A CN201510938132 A CN 201510938132A CN 106292060 B CN106292060 B CN 106292060B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 172
- 239000011521 glass Substances 0.000 claims abstract description 288
- 238000000034 method Methods 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000001459 lithography Methods 0.000 claims description 5
- 239000002105 nanoparticle Substances 0.000 claims 2
- 238000012993 chemical processing Methods 0.000 claims 1
- 238000000206 photolithography Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000001259 photo etching Methods 0.000 description 3
- 230000037237 body shape Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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Abstract
The invention discloses a luminous liquid crystal panel. Including last glass board, lower glass board, liquid crystal and circuit etc, it is used for realizing the leaded light function to go up the glass board, and glass's leaded light rate about certainly needing to improve, and it includes: the light incident surface is arranged on the side surface of the upper glass plate, one part of light beams emitted by the light source facing the light incident surface directly enter the upper glass plate through the light incident surface, and the other part of the light beams enters the upper glass plate through the light incident surface after being reflected by the reflecting cover; the light guide body is arranged inside the upper glass plate and is parallel to the light emergent surface; and a plurality of microgeometric bodies for reflecting or refracting the light beams are sequentially arranged on the light guide body. The invention reduces the propagation medium and path of light, improves the utilization rate of light and the light-emitting efficiency of the liquid crystal panel, and simultaneously improves the readability of the liquid crystal panel in the sun.
Description
Technical Field
The invention relates to the field of photoelectric display, in particular to a liquid crystal panel with simple structure and high luminous efficiency, a liquid crystal display device and a foreground light source of a display terminal.
Background
With the development of flat panel display technology, the application range of liquid crystal panels and liquid crystal display devices is becoming wider and wider, such as liquid crystal televisions, liquid crystal displays, notebooks, smart phones, tablet computers, various wearable products, and various application display terminals. These application terminals all require a friendly display interface, and the optical performance of the liquid crystal panel determines the display effect of the whole liquid crystal display device.
As shown in fig. 1, a conventional liquid crystal display device generally includes a liquid crystal panel 01 and a backlight 02, and the liquid crystal panel 01 itself does not emit light but is illuminated by the backlight 02. Light emitted from a light source 021 in the backlight 02 passes through a light guide plate 023 to become planar light, and then passes through a diffusion film 026 and a brightness enhancement film 027 to emit uniform light, thereby illuminating the liquid crystal panel 01 and displaying an image. The structure has long optical path, serious optical loss, low optical efficiency and poor readability in sunlight. Moreover, the whole liquid crystal display device has a complex structure and high cost, which affects the thinning, lightening and high-efficiency development thereof.
Disclosure of Invention
The invention aims to provide a liquid crystal panel and a liquid crystal display device, and aims to solve the problems that the thickness of the traditional liquid crystal display device is increased due to the need of additionally matching a backlight source, the cost is high, the light efficiency is low, and the readability in sunlight is poor.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a liquid crystal display panel that can give out light, includes glass board, lower glass board, liquid crystal and circuit etc. its characterized in that, glass board is used for realizing the leaded light function from top to bottom, and it includes:
the light incident surface is arranged on the side surface of the upper glass plate, one part of light beams emitted by the light source facing the light incident surface directly enter the upper glass plate through the light incident surface, and the other part of the light beams enters the upper glass plate through the light incident surface after being reflected by the reflecting cover;
the light emitting surface is arranged on the upper surface of the upper glass plate and used for guiding out the light beams in the liquid crystal panel;
the light guide body (surface) is arranged inside the upper glass plate and on the upper surface of the upper glass plate, and is parallel to and coincided with the light emergent surface; the light guide body (surface) is sequentially provided with a plurality of micro-geometric bodies for reflecting and refracting the light beams, and part of light reflected and refracted by the micro-geometric bodies passes through the lower bottom surfaces of the upper glass plate and the upper glass plate, the liquid crystal and the circuit, enters the lower glass plate, and is reflected back through the reflecting layer from the lower glass plate to the lower bottom surface, so that the liquid crystal panel is lightened to play a role of a foreground light source.
According to the liquid crystal panel provided by the invention, the microgeometric bodies are formed in the glass plate by laser photoetching, engraving, etching, photoengraving, printing, electricity, physics, chemical treatment and other processes or units with the size of more than a nanometer are mixed into the glass plate or units with the size of more than a nanometer are formed in the glass plate by one or more processes, wherein the microgeometric bodies positioned on the upper glass plate and the lower glass plate have the characteristic of not influencing the observation effect of a liquid crystal display by naked eyes of people.
According to the liquid crystal panel provided by the invention, the shape of the microgeometric body is any one or combination of more of a point shape, a strip shape, a plane body shape and a curved body shape.
According to the liquid crystal panel provided by the invention, the microgeometric bodies are arranged in a state that the pitches are gradually increased from sparse to dense along with the sequence from near to far relative to the light source.
According to the liquid crystal panel provided by the invention, the microgeometric bodies are arranged from small to large in volume along with the sequence from near to far relative to the light source.
According to the liquid crystal panel provided by the invention, the diameters of the microgeometric bodies in the length direction, the width direction and the height direction are more than 1 nanometer and less than 1 meter.
According to the liquid crystal panel provided by the invention, the microgeometric bodies have more than one shape.
According to the liquid crystal panel provided by the invention, the light incident surfaces are multiple, and the light source and the reflector are arranged at corresponding positions on at least one light incident surface.
According to the liquid crystal panel provided by the invention, the bottom surface of the lower glass plate is also provided with a reflecting layer.
According to the liquid crystal panel provided by the invention, the light incident surface of the upper glass plate, the light incident surface of the lower glass plate, the light source and the reflector form a combination together.
The invention also provides a luminous liquid crystal display device which comprises a light source, a reflecting cover and any one of the liquid crystal panels.
The invention further provides a display terminal which comprises the liquid crystal display device, and the micro-geometry in the liquid crystal display device adjusts the light distribution uniformity to 50% -100%.
The invention abandons the method that the backlight source or the front light source is needed to be added in the prior art, and the glass plate in the liquid crystal panel can play the light guiding role of the original backlight source or the front light source by improving the light efficiency and optimizing the structure, so that the light emitted from the light emitting surface of the glass is uniformly distributed, the light transmission medium and the light path are greatly reduced, and the light utilization rate and the light emitting efficiency of the liquid crystal panel are improved. Meanwhile, the liquid crystal panel provided by the invention has the advantages of simple structure, easiness in assembly and lighter and thinner volume, and can further promote the development of a liquid crystal display device towards miniaturization and lightness.
Drawings
FIG. 1 is a schematic cross-sectional view of a conventional LCD device;
fig. 2 is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with a single-sided light source disposed on a light-emitting surface of an upper glass plate according to a first embodiment of the invention;
FIG. 3A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with light sources disposed on both sides of the light-emitting surface of an upper glass plate according to a second embodiment of the present invention;
FIG. 3B is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with a double-sided light source disposed therein in an inner plane of an upper glass plate according to a second embodiment of the present invention;
FIG. 4A is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source on the light incident surface of an upper glass plate, wherein the micro-geometry of the liquid crystal panel is located on the light emergent surface of the upper glass plate and on the lower bottom surface of the lower glass plate according to a third embodiment of the present invention;
FIG. 4B is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source on the light incident surface of an upper glass plate, wherein the micro-geometry of the liquid crystal panel is located on the light emergent surface of the upper glass plate and on more than one plane inside the lower glass plate according to a third embodiment of the present invention;
FIG. 5A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with a single-sided light source at the light incident surface of a lower glass plate, inside the upper glass plate and at the bottom surface of the lower glass plate according to a fourth embodiment of the present invention;
FIG. 5B is a schematic cross-sectional view of a micro-geometry liquid crystal panel with a single-sided light source at the light incident surface of a lower glass plate, the micro-geometry liquid crystal panel being disposed at more than one plane inside the upper glass plate and the lower glass plate according to a fourth embodiment of the present invention;
fig. 6A is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source disposed on the light incident surface of a lower glass plate according to a fifth embodiment of the present invention, wherein the micro-geometry of the liquid crystal panel is disposed on the light emergent surface of the upper glass plate and on the lower bottom surface of the lower glass plate;
fig. 6B is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source disposed on the light incident surface of the lower glass plate according to a fifth embodiment of the present invention, wherein the micro-geometry of the liquid crystal panel is disposed on the light emergent surface of the upper glass plate and on more than one plane inside the lower glass plate;
FIG. 7A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with a double-sided light source at the light incident surface of a lower glass plate, inside the upper glass plate and at the bottom of the lower glass plate according to a sixth embodiment of the present invention;
FIG. 7B is a schematic cross-sectional view of a micro-geometry liquid crystal panel with a double-sided light source at the light incident surface of a lower glass plate, the micro-geometry liquid crystal panel being disposed on more than one plane inside the upper glass plate and the lower glass plate according to a sixth embodiment of the invention;
FIG. 8A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with light sources on both sides of the light incident surface of an upper glass plate, the micro-geometry of the liquid crystal panel being on the light emergent surface of the upper glass plate and on the bottom surface of a lower glass plate according to a seventh embodiment of the present invention;
FIG. 8B is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of the upper glass plate, wherein the micro-geometry of the liquid crystal panel is located on the light emergent surface of the upper glass plate and on more than one plane inside the lower glass plate according to a seventh embodiment of the present invention;
FIG. 9A is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of an upper glass plate, wherein the microgeometric structure of the liquid crystal panel is inside the upper glass plate and on the bottom surface of the lower glass plate according to an eighth embodiment of the present invention;
FIG. 9B is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of the upper glass plate, wherein the microgeometric structure of the liquid crystal panel is in more than one plane inside the upper glass plate and inside the lower glass plate according to an eighth embodiment of the present invention;
FIG. 10A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with light sources on both sides of the light incident surface of a lower glass plate according to a ninth embodiment of the present invention, the micro-geometry of the liquid crystal panel being on the light emergent surface of the upper glass plate and on the lower bottom surface of the lower glass plate;
FIG. 10B is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of the lower glass plate, wherein the micro-geometry of the liquid crystal panel is located on the light emergent surface of the upper glass plate and on more than one plane inside the lower glass plate according to a ninth embodiment of the present invention;
FIG. 11A is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of a lower glass plate, wherein the microgeometric structure is inside the upper glass plate and on the bottom surface of the lower glass plate according to a tenth embodiment of the present invention;
FIG. 11B is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides of the light incident surface of a lower glass plate, wherein the microgeometry of the liquid crystal panel is located in more than one plane inside the upper glass plate and inside the lower glass plate according to a tenth embodiment of the present invention;
FIG. 12A is a schematic cross-sectional view of a micro-geometry of a liquid crystal panel with a single-sided light source incident surface formed by an upper glass plate and a lower glass plate, the micro-geometry of the liquid crystal panel being located on the light emitting surface of the upper glass plate and the lower bottom surface of the lower glass plate according to an eleventh embodiment of the invention;
FIG. 12B is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source incident surface formed by an upper glass plate and a lower glass plate, wherein the micro-geometry of the liquid crystal panel is located on the light emitting surface of the upper glass plate and on more than one plane inside the lower glass plate;
FIG. 13A is a schematic cross-sectional view of a liquid crystal panel with a single surface provided with a light source on the light incident surface formed by the upper and lower glass plates, wherein the micro-geometry is inside the upper glass plate and on the lower bottom surface of the lower glass plate;
FIG. 13B is a schematic cross-sectional view of a liquid crystal panel with a single surface provided with a light source on the light incident surface formed by the upper and lower glass plates, wherein the micro-geometry is formed on more than one plane inside the upper glass plate and inside the lower glass plate;
FIG. 14A is a schematic cross-sectional view of a liquid crystal panel with a light source on both sides thereof being incident on a light incident surface formed by an upper glass plate and a lower glass plate according to a thirteenth embodiment of the invention, wherein the microgeometry is located on the light emitting surface of the upper glass plate and on the lower bottom surface of the lower glass plate;
FIG. 14B is a schematic cross-sectional view of a liquid crystal panel with a double-sided light source disposed on the light incident surface formed by the upper and lower glass plates, wherein the micro-geometry of the liquid crystal panel is located on the light emitting surface of the upper glass plate and on more than one plane inside the lower glass plate;
FIG. 15A is a schematic cross-sectional view of a liquid crystal panel with a light source disposed on both sides of the light incident surface formed by an upper glass plate and a lower glass plate according to a fourteenth embodiment of the invention, wherein the microgeometry is located inside the upper glass plate and on the lower bottom surface of the lower glass plate;
FIG. 15B is a schematic cross-sectional view of a liquid crystal panel with a light source disposed on both sides thereof and a light incident surface formed by an upper glass plate and a lower glass plate, wherein the micro-geometry of the liquid crystal panel is located in more than one plane inside the upper glass plate and inside the lower glass plate;
fig. 16A is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source disposed on the light incident surface of the upper glass plate and the light incident surface of the lower glass plate according to the fifteenth embodiment, showing the micro-geometry on the light emergent surface of the upper glass plate and the lower bottom surface of the lower glass plate;
fig. 16B is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source disposed on the light incident surface of the upper glass plate and the light incident surface of the lower glass plate according to the fifteenth embodiment, wherein the micro-geometry is disposed on more than one plane inside the light emergent surface of the upper glass plate and the lower glass plate;
fig. 17A is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source disposed on the light incident surface of an upper glass plate and a light incident surface of a lower glass plate according to a sixteenth embodiment, wherein the microgeometric structure is disposed inside the upper glass plate and on the lower bottom surface of the lower glass plate;
FIG. 17B is a schematic cross-sectional view of a liquid crystal panel with a single-sided light source respectively incident on the upper and lower glass plates, wherein the micro-geometry is disposed in more than one plane inside the upper glass plate and inside the lower glass plate;
FIG. 18A is a schematic cross-sectional view of a liquid crystal panel with double-sided light sources respectively disposed on the light incident surfaces of an upper glass plate and a lower glass plate according to a seventeenth embodiment of the invention, wherein the microgeometry is disposed on the light emergent surface of the upper glass plate and the lower bottom surface of the lower glass plate;
FIG. 18B is a schematic cross-sectional view of a liquid crystal panel with double-sided light sources respectively disposed on the light incident surfaces of the upper and lower glass plates, wherein the micro-geometry of the liquid crystal panel is located on the light emergent surface of the upper glass plate and on more than one plane inside the lower glass plate;
FIG. 19A is a schematic cross-sectional view of a liquid crystal panel with light sources on both sides respectively incident on the upper and lower glass plates, wherein the microgeometry is located inside the upper glass plate and at the lower bottom of the lower glass plate according to the eighteenth embodiment of the invention;
fig. 19B is a schematic cross-sectional view of a liquid crystal panel with light sources arranged on both sides of the liquid crystal panel, wherein the light sources are respectively incident on the common light incident surface of the upper glass plate and the lower glass plate, and the microgeometry of the liquid crystal panel is in more than one plane inside the upper glass plate and inside the lower glass plate according to an eighteenth embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a micro-geometry body formed by laser photoetching, carving, etching, photomechanical production, printing, electricity, physics, chemical treatment and other processes or a micro-geometry body formed by laser photoetching and doping of nano units or a micro-geometry body formed by more than nano size units in a glass plate by one or more processes, wherein part of light reflected and refracted by the micro-geometry body passes through the lower bottom surfaces of an upper glass plate and the upper glass plate and liquid crystal and a circuit, enters a lower glass plate and is reflected back by a reflecting layer from the lower glass plate to the lower bottom surface, so that the liquid crystal panel is lightened, and the effect of a foreground light source is achieved. The light emitted from the light-emitting surface of the upper glass plate is uniformly distributed, and the light-emitting efficiency is improved.
The light guide plate of the liquid crystal panel provided by the embodiment of the invention is directly manufactured by using an upper glass plate, the upper glass plate of the liquid crystal panel is provided with at least one light incoming surface for receiving light beams, a bottom surface connected with the light incoming surface and a light outgoing surface opposite to the bottom surface, namely the light outgoing surface is positioned on the upper surface of the upper glass plate and used for guiding the light beams out of the liquid crystal panel, and the light outgoing surface of the upper glass plate or one or more planes parallel to the bottom surface in the upper glass plate are provided with microgeoids formed by doping microgeoids or nanometer microcells formed by processes such as laser lithography, carving, etching, photomechanical production, printing, electricity, physics, chemical treatment and the like or microgeoids formed by doping units with sizes of more than nanometers in the glass plate through one or more processes.
The embodiment of the invention provides a liquid crystal display terminal, which comprises a light source and a liquid crystal panel coupled with the light source, wherein the upper glass of the liquid crystal panel is provided with at least one light incoming surface for receiving light beams, a bottom surface connected with the light incoming surface and a light outgoing surface opposite to the bottom surface, the light outgoing surface is used for guiding the light beams out of the liquid crystal panel, and the light outgoing surface of the upper glass or a plane parallel to the bottom surface inside the upper glass is a microgeometric body formed by the processes of laser lithography, carving, etching, photomechanical production, printing, electricity, physics, chemical treatment and the like or a microgeometric body formed by doping of nanometer trace units or units with sizes of more than nanometers, and is a microgeometric body formed in a glass plate by one or more processes.
The following detailed description of specific implementations of the present invention is provided in conjunction with specific embodiments:
fig. 2A and 2B are schematic cross-sectional structural diagrams of a micro-geometry of a liquid crystal panel with a single-sided light source according to a first embodiment of the present invention, where the micro-geometry is at a light-emitting surface of an upper glass plate and at an inner plane of the upper glass plate, and for convenience of description, only the portions related to the embodiment of the present invention are shown.
As shown in fig. 2A and 2B, a liquid crystal panel according to a first embodiment of the present invention includes a liquid crystal panel 11 and a light source 121 optically coupled to the liquid crystal panel 11. The upper glass 114 has at least one light incident surface 1141 for receiving light emitted from the light source 121, a bottom surface 1142 connected to the light incident surface 1141, an inner plane 1144 parallel to the bottom surface 1142, a light emitting surface 1143 corresponding to the bottom surface, and a light guide plate for guiding light out of the liquid crystal panel 111. The light-emitting surface 1143 or the inner plane 1144 of the upper glass 114 is distributed with a plurality of micro-geometric bodies 113, the light source 121 is arranged on the light-entering surface 1141 of the upper glass 114, and a backlight source except the light source 121 and the reflecting cover 122 is omitted, so that the light path is simplified, the light loss is reduced, the light efficiency is improved, meanwhile, the structure is simplified, the cost is reduced, and the thickness of the liquid crystal display device is reduced.
The micro-geometries 113 are formed on the upper surface of the upper glass by processes of laser lithography, engraving, etching, photomechanical production, printing, electricity, physics, chemical treatment and the like, or the micro-geometries 113 are formed in the glass plate 114 by one or more processes of laser lithography, doping of nano micro-units into the light-emitting surface 1143 or the inner plane 1144 of the upper glass 114 or the size units with more than nano-units, and are simple or complex geometries. The size and density of the micro-geometry 113 are determined according to the thickness and size of the upper glass 114 and the transmittance of the liquid crystal panel, so that the light emitted from the light-emitting surface 1143 of the upper glass 114 is uniformly distributed.
It should be noted that the larger the area of the individual microgeoids 113 is, the stronger the light emitted from the light emitting surface 1143, and the shape of the microgeoids 113 is related to the direction of the light emitted from the light source 121. When the light entering the upper glass 114 from the light source 121 is perpendicular to the plane tangent to the surface of the micro-geometric body 113 from the light exit surface 1143 or the inner plane 1144 of the upper glass 114, the light energy on the perpendicular line is the largest and the brightness is the highest, and the refraction and reflection of the light are greatly reduced by other tangent planes parallel to the light. That is, when the surface of the light-emitting surface 1143 or the inner plane 1144 of the upper glass 114 tangent to the surface of the micro-geometric body 113 intersects with the light entering the upper glass 114 from the light source 121, light is emitted and refracted, the intensity of the light is strongest when the light intersects vertically, and no light exists at the parallel position of the light. Therefore, by adjusting the shape and size of the micro-geometry 113, the light entering the upper glass from the light source 121 is perpendicular to the light exit surface 1143 of the upper glass 114 or the inner plane 1124 is tangent to the micro-geometry 113 as much as possible, which is helpful for improving the light exit efficiency of the upper glass 114.
The microgeometric dimensions and the arrangement on the upper glass plate have the characteristic of not affecting the effect of the liquid crystal display observed by human eyes.
As shown in fig. 3A and 3B, in the second embodiment of the present invention, in the embodiment, two light sources 221 are respectively disposed on two light incident surfaces 2141 of the upper glass plate 214, light beams emitted by the light sources 221 enter the upper glass plate 214 through the light incident surfaces 2141 of the upper glass plate 214, according to the display requirement of the liquid crystal panel, the upper glass plate 214 may further have a corner portion or three or four light incident surfaces 2141, correspondingly, the light sources 221 are also disposed on two, corner portions or three or four surfaces to meet the display requirement of the liquid crystal panel, a reflective sheet (not shown in the figure) may be further disposed on a side surface of the upper glass plate 214 where the light sources 221 are not disposed to improve the utilization rate of the light beams, and a reflective cover 222 is disposed outside the light sources 221 to better reflect and couple part of the light beams emitted by the light sources 221 into the upper glass plate 214.
As shown in fig. 4A and 4B, a liquid crystal panel according to a third embodiment of the present invention includes a liquid crystal panel 31 and a light source 321 optically coupled to the liquid crystal panel 31, a micro-geometry 313 is disposed on a light emitting surface 3143 of an upper glass plate 314 and a lower bottom surface of a lower glass plate 312 or inner planes 3124 and 3124 'of the lower glass plate 312, the upper glass plate 314 has at least one light incident surface 3141 for receiving light beams emitted from the light source 321, a bottom surface 3142 connected to the light incident surface 3141 and a light emitting surface 3143 corresponding to the bottom surface 3142 for guiding out the light beams in the liquid crystal panel, the light emitting surface 3143 of the upper glass plate 314 and the lower bottom surface 3122 of the lower glass plate or the inner planes 3124 and 3124' of the lower glass plate 312 are distributed with a plurality of micro-geometries 313, the light source 321 is disposed on the light incident surface 3141 of the upper glass plate 314, the backlight 32 excluding the light source 321 and the reflector 322 is omitted, thereby simplifying light paths and reducing light loss, the structure is simple, the cost is reduced, and the thickness of the liquid crystal display device is reduced.
As shown in fig. 5A and 5B, a liquid crystal panel according to a fourth embodiment of the present invention includes a liquid crystal panel 41 and a light source 421 optically coupled to the liquid crystal panel 41, a micro-geometry 413 is disposed on an inner plane 4144 of an upper glass plate 414 and lower bottom surfaces or inner planes 4124 and 4124 'of a lower glass plate 412, the upper glass plate 412 has at least one light incident surface 4141 for receiving light beams emitted from the light source 421, a bottom surface 4122 connected to the light incident surface 4121 and a light emitting surface 4143 corresponding to the bottom surface 4122 for guiding out the light beams in the liquid crystal panel, a plurality of micro-geometries 413 are distributed on the inner plane 4144 of the upper glass plate 414 and the lower bottom surfaces or inner planes 4124 and 4124' of the lower glass plate, the light source 421 is disposed on the light incident surface 4121 of the lower glass plate 412, and the backlight 422 excluding the light source 421 and the reflector is omitted, so as to simplify light path, reduce light loss, improve light efficiency and simplify structure, the cost is reduced, and the thickness of the liquid crystal display device is reduced.
As shown in fig. 6A and 6B, a fifth embodiment of the present invention is similar to the first embodiment, in which the lower glass plate 512 has at least one light incident surface 5121 for receiving light emitted by the light source 521, a bottom surface 5122 connected to the light incident surface 5121, inner planes 5124 and 5124 'parallel to the bottom surface 5122, and a light emitting surface 5143 corresponding to the bottom surface for guiding out light in the liquid crystal panel 51, the light emitting surface 5143 of the upper glass plate 514 and the lower bottom surface 5122 of the lower glass plate 512 or the inner planes 5124 and 5124' are distributed with a plurality of micro-geometric bodies 513, and the light source 521 is disposed on the light incident surface 5121 of the lower glass plate 512, so as to save the backlight source excluding the light source 521 and the reflective cover 522, thereby simplifying the light path, reducing light loss, improving light efficiency, and simultaneously simplifying the structure, reducing cost and reducing the thickness of the liquid crystal display device.
As shown in fig. 7A and 7B, a sixth embodiment of the present invention is that in this embodiment, the lower glass plate 612 has at least one light incident surface 6121 for receiving light emitted by the light source 621, a bottom surface 6122 connected to the light incident surface 6121, inner planes 6124 and 6124 'parallel to the bottom surface 6122, and a light emitting surface 6143 corresponding to the bottom surface for guiding out light in the liquid crystal panel 61, the inner plane 6144 of the upper glass plate 614 and the lower bottom surface 5122 of the lower glass plate 612 or the inner planes 5124 and 5124' are distributed with a plurality of micro-geometric bodies 513, the light source 621 is disposed on the light incident surface 6121 of the lower glass 612, and backlight sources except the light source 621 and the reflective cover 622 are omitted, thereby simplifying the light path, reducing light loss, improving light efficiency, and simultaneously simplifying the structure, reducing cost, and reducing the thickness of the liquid crystal display device.
Fig. 8A, 8B, 9A, 9B show a seventh embodiment and an eighth embodiment of the present invention, respectively, similar to the second embodiment, two light sources 721/821 are respectively disposed on two light incident surfaces 7141/8141 of the upper glass 714/814, light beams emitted by the light sources 721/821 enter the upper glass 714/814 through the light incident surface 7141/8141 of the upper glass 714/814, the upper glass 714/814 may further have corners or three or four light incident surfaces 7141/8141 according to the display requirements of the liquid crystal panel, correspondingly, the light sources 721/821 may also be disposed on two, corners or three or four surfaces to meet the display requirements of the liquid crystal panel, and a reflective sheet (not shown in the figure) may be disposed on the side surfaces of the upper glass 714/814 and the lower glass 712/812 where the light sources 721/821 are not disposed to improve the utilization rate of the light beams, a reflector 722/822 is provided on the outside of the light source 721/821 to better couple the portion of the light beam emitted by the light source 721/821 into the upper glass plate 714/814 for reflection.
As shown in fig. 10A, 10B, 11A and 11B, a ninth embodiment and a tenth embodiment of the present invention are provided, in which two light sources 921/1021 are respectively disposed on two light incident surfaces 9121/10121 of a lower glass 912/1012, light beams emitted by the light sources 921/1021 enter a lower glass 914/1014 through a light incident surface 9121/10121 of the lower glass 912/1012, according to the display requirements of the liquid crystal panel, the lower glass 912/1012 may further have corners or three or four light incident surfaces 9121/10121, correspondingly, the light sources 921/1021 may also be disposed on two, corners or three or four surfaces to meet the display requirements of the liquid crystal panel, and a reflective sheet (not shown in the figure) may be disposed on the side surfaces of the lower glass 912/1012 and the upper glass 914/1014 where the light sources 921/1021 are not disposed to improve the utilization rate of the light beams, a reflector 922/1022 is provided on the outside of the light source 921/1021 to better couple the portion of the light beam emitted by the light source 921/1021 into the lower glass plate 912/1012 for reflection.
As shown in fig. 12A, 12B, 13A and 13B, respectively, which illustrate an eleventh embodiment and a twelfth embodiment of the present invention, a liquid crystal panel is provided, which includes a liquid crystal panel 111/121 and a light source 1121/1221 optically coupled to the liquid crystal panel 111/121, a micro-geometry 1113/1213 is disposed on an exit surface 11143 or an 1214 internal plane 12144 of an upper glass plate 1114 and a lower bottom surface 11122 of a lower glass plate 1112 or on internal planes 12124 and 12124' of the lower glass plate 1212, the upper glass plate 1114/1214 and the lower glass plate 1112/1212 have at least one entrance surface 11141/12141 and 11121/12121 for receiving light emitted from the light source 1121/1221, a bottom surface 11122/12122 connected to the entrance surface 11121/12121 and an exit surface 11143/12143 corresponding to the bottom surface 11142/12142 for guiding out light in the liquid crystal panel, and the light source 1121/1221 is disposed on the entrance surface 11141/12141 of the upper glass plate 1114/1214 and the lower glass plate 1112/1212 The light incident surface 11121/12121 eliminates the backlight source except the light source 1121/1221 and the reflector 1122/1222, thereby simplifying the light path, reducing the light loss, improving the light efficiency, and simultaneously having simple structure, low cost and reduced thickness of the liquid crystal display device.
As shown in fig. 14A, 14B, 15A and 15B, a thirteenth embodiment and a fourteenth embodiment of the present invention are provided, in which two light sources 1321/1421 are respectively disposed on two light incident surfaces 13121/14121 and 13141/14141 of a lower glass plate 1312/1412 and an upper glass plate 1314/1414, light beams emitted by a light source 1321/1421 enter the lower glass plate 1312/1412 and the upper glass plate 1314/1414 through the light incident surface 13121/14121 of a lower glass plate 1312/1412 and the light incident surface 13141/14141 of the upper glass plate 1314/1414, the lower glass plate 1312/1412 and the upper glass plate 1314/1414 may further have corners or three or four light incident surfaces 13121/14121 and 12141/14141 according to the display requirements of the liquid crystal panel, and correspondingly, the light source 1321/1421 is also disposed in two, corners or three or four surfaces to meet the display requirements of the liquid crystal panel, reflecting plates (not shown) can be further disposed on the sides of the lower glass plate 1312/1412 and the upper glass plate 1314/1414 where the light source 1321/1421 is not disposed to improve the utilization rate of the light beam, and a reflective cover 1322/1422 is disposed on the outer side of the light source 1321/1421 to better reflect and couple part of the light beam emitted by the light source 1321/1421 into the upper glass plate 1314/1314 and the lower glass plate 1312/1412.
As shown in fig. 16A, 16B and fig. 17A and 17B, for the fifteenth and sixteenth embodiments of the present invention, there is provided a liquid crystal panel comprising a liquid crystal panel 151/161 and light sources 1521/1521 '/1621/1621' optically coupled with the liquid crystal panel 151/161, a micro-geometry 1513/1613 is disposed on the light-emitting surface 15143 of the upper glass plate 1514 or the inner flat surface 16144 of the upper glass plate 1614 and the lower bottom surface 15122/1612 of the lower glass plate 1512/1612 or the inner flat surfaces 15124 and 15124 '/16124/16124' of the lower glass plate 1512/1612, the upper glass plate 1514/1614 and the lower glass plate 1512/1612 have at least one light-in surface 15141/15121/16141/16121 for receiving light beams emitted from the light sources 1521/1521 '/1621/1621', a bottom surface 15122/16122 connected to the light-in surface 15121/16121 and a light-emitting surface 1514316143 corresponding to the bottom surface 15142/16142, the light sources 1521/1521 '/1621/1621' are arranged on the light incident surface 15141/16141 of the upper glass plate 1514/1614 and the lower glass plate 1512/1612 and the light incident surface 15141/15121/16141/16121 of the lower glass plate 1512/1612, and the backlight sources except the light sources 1521/1521 '/1621/1621' and the reflection covers 1522/1522 '/1622/1622' are omitted, so that the light path is simplified, the light loss is reduced, the light efficiency is improved, the structure is simple, the cost is reduced, and the thickness of the liquid crystal display device is reduced.
As shown in fig. 18A and 18B, a seventeenth embodiment of the present invention is shown, in this embodiment, two light sources 1721/1721 'are respectively disposed on two light incident surfaces 17141/17121 of the upper glass plate 1714 and the lower glass plate 1712, light beams emitted by the light sources 1721/1721' enter the upper glass plate 1714 and the lower glass plate 1712 through the light incident surfaces 17141/17121 of the upper glass plate 1714 and the lower glass plate 1721, the upper glass plate 1714 and the lower glass plate 1712 may further have corners or three or four light incident surfaces 17141 and 17121 according to the display requirements of the liquid crystal panel, correspondingly, the light sources 1721/1721 'may also be disposed according to two, corners or three or four surfaces to meet the display requirements of the liquid crystal panel, a reflective sheet (not shown in the figure) may be disposed on the side surface of the upper glass plate 1714 and the lower glass plate 1712 where the light sources 1721/1721' are not disposed to improve the utilization rate of the light beams, reflective covers 1722/1722 'are disposed outside the light sources 1721/1721', to better reflectively couple the light beam from the light source 1722/1722' into the upper glass sheet 1714/1712.
As shown in fig. 19A and 19B, in an eighteenth embodiment of the present invention, in this embodiment, two light sources 1821/1821 ' are respectively disposed on two light incident surfaces 18141/18121 of the upper glass plate 1814/the lower glass plate 1812, light beams emitted by the light sources 1821/1821 ' enter the upper glass plate 1814/the lower glass plate 1812 through the light incident surfaces 18141/18121 of the upper glass plate 1814/the lower glass plate 1821, the upper glass plate 1814 and the lower glass plate 1812 may further have corners or three or four light incident surfaces 18141 and 18121 according to the display requirements of the liquid crystal panel, correspondingly, the light sources 1821/1821 ' may also be disposed according to two, corners or three or four surfaces to meet the display requirements of the liquid crystal panel, and a reflective sheet (not shown in the figure) may be disposed on the side surface of the upper glass plate 1814 and the lower glass plate 1812 where the light source 1821/1821 ' is not disposed to improve the utilization rate of the light beams, a reflective cover 1822/1822 ' is disposed outside the light source 1821/1821, to better reflectively couple the light beam from the light source 1822/1822' into the upper glass sheet 1814/1812.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. The utility model provides a liquid crystal display panel that can give out light, includes the glass board, lower glass board, liquid crystal and circuit, its characterized in that, it is used for realizing the leaded light function to go up the glass board, and it includes:
the light incident surface is arranged on the side surface of the upper glass plate, one part of light beams emitted by the light source facing the light incident surface directly enter the upper glass plate through the light incident surface, and the other part of the light beams enters the upper glass plate through the light incident surface after being reflected by the reflecting cover;
the light emitting surface is arranged on the upper surface of the upper glass plate and used for guiding out the light beams in the liquid crystal panel;
the light guide body is arranged in the upper glass plate and on the upper surface of the upper glass plate and is parallel to or coincided with the light emergent surface; a plurality of micro-geometric bodies used for reflecting and refracting the light beams are sequentially arranged on the light guide body, and part of the light reflected and refracted by the micro-geometric bodies passes through the upper glass plate to reach the lower bottom surface of the upper glass plate, the liquid crystal and the circuit enter the lower glass plate and is reflected back through the lower glass plate to the reflecting layer of the lower bottom surface, so that the liquid crystal panel is lightened to play a role of a foreground light source;
the inner part of the lower glass plate or the lower bottom surface thereof or the inner part and the lower bottom surface of the lower glass plate are simultaneously provided with a plurality of micro-geometric bodies for realizing the light guide function;
wherein the shape of the microgeometric body is any one or combination of a plurality of points, strips, planes or curved surfaces;
wherein the microgeometry is configured such that, by adjusting the shape and size of the microgeometry: when the light emitted by the light source irradiates the micro-geometric body, the section of the micro-geometric body is perpendicularly intersected with the light.
2. The liquid crystal panel of claim 1, wherein the microgeometric bodies are formed in the glass plate and the surfaces of the upper and lower glass plates by one or more processes of laser lithography, engraving, etching, photolithography, printing, electrical, physical, chemical processing or doping of nano-sized or larger sized units into the glass plate or nano-sized or larger sized units, wherein the microgeometric bodies on the upper and lower glass plates have characteristics that do not affect the effect of the liquid crystal display observed by human eyes.
3. The liquid crystal panel according to claim 1 or 2, wherein the microgeometric bodies are arranged in a state of being arranged in a pitch from sparse to dense in a sequence from near to far with respect to the light source.
4. The liquid crystal panel according to claim 1 or 2, wherein the microgeometric bodies are arranged in a volume-increasing order from near to far with respect to the light source.
5. The liquid crystal panel of claim 1 or 2, wherein the diameter of the microgeometric body in the direction perpendicular to the light incident surface is greater than 1 nm and less than 1 m in the length direction, width direction and height direction.
6. The liquid crystal panel of claim 1 or 2, wherein the microgeometric bodies have more than one shape.
7. The liquid crystal panel according to claim 1 or 2, wherein there are a plurality of light incident surfaces, and at least one light source and the reflection cover are disposed at a position corresponding to the light incident surface, and then a reflection layer is disposed at the other end of the light guide body opposite to the light incident surface where the light source is disposed.
8. The liquid crystal panel of claim 1, wherein the bottom surface of the lower glass plate is further provided with a reflective layer.
9. The liquid crystal panel of claim 7, wherein the light incident surface of the upper glass plate, the light incident surface of the lower glass plate, the light source, and the reflector collectively form an assembly.
10. A light-emitting liquid crystal display device comprising a light source, a reflection cover, and the liquid crystal panel according to any one of claims 1 to 9.
11. A display terminal comprising a liquid crystal display device according to claim 10, wherein the micro-geometry in the liquid crystal display device adjusts the light distribution uniformity to 50% -100%.
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| CN201510938132.3A CN106292060B (en) | 2015-12-15 | 2015-12-15 | Luminous liquid crystal panel, liquid crystal display device and foreground light source of display terminal |
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| CN201510938132.3A CN106292060B (en) | 2015-12-15 | 2015-12-15 | Luminous liquid crystal panel, liquid crystal display device and foreground light source of display terminal |
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