CN212322032U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN212322032U CN212322032U CN202021304114.2U CN202021304114U CN212322032U CN 212322032 U CN212322032 U CN 212322032U CN 202021304114 U CN202021304114 U CN 202021304114U CN 212322032 U CN212322032 U CN 212322032U
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Abstract
The embodiment of the utility model provides a relate to and show technical field, disclose a backlight module and display device. The backlight module comprises: the light guide plate, set up in the reflector plate of light guide plate first side to and set up in the backlight source of light guide plate second side, first side with the second side is adjoint, still includes: the dimming film layer comprises at least two dimming partitions, and the dimming partitions are distributed in an array; the dimming film layer is arranged at least one of the following positions: a first side of the light guide plate; a second side of the light guide plate; and a third side surface of the light guide plate, the third side surface being disposed opposite to the first side surface; the reflectivity of the dimming partition is adjustable, so that the partition can modulate the emergent light of the light guide plate. The embodiment of the utility model provides a technical scheme can realize being applied to regional dynamic adjustment technique in a poor light with the structure of being shaded of side income formula.
Description
Technical Field
The embodiment of the utility model provides a relate to and show technical field, especially relate to a backlight module and display device.
Background
Flat panel displays (also known as Liquid Crystal displays ("LCDs"), Liquid Crystal Display ("LCD"), and Display devices ") have features of high image quality, small size, light weight, low voltage driving, low power consumption, and wide application range, and are therefore widely used in Display devices such as mobile phones, computers, projection televisions, and vehicle-mounted displays, or other devices that incorporate Display functions. With the development of flat panel displays, performance indexes such as large area, high resolution, wide viewing angle, high-speed response, low power consumption and the like have also become key performance indexes for users to judge the performance of liquid crystal displays.
Generally, a flat panel display includes a backlight module and a display panel. The conventional LCD device uses a global backlight, which has a dynamic range of about 2 orders of magnitude, and the global backlight still has a serious light leakage phenomenon, which is one of the reasons for limiting the contrast ratio of the LCD display. Currently, to solve this problem, a local dimming (local dimming) Dynamic adjustment technique is proposed, in which the backlight is divided into a plurality of independent partitions, and the brightness of the backlight of each partition can be adjusted in real time according to the bright and dark fields of an image to be displayed, so that High Dynamic Range (HDR) display of the LCD can be realized. However, the existing area backlight dynamic adjustment technology is only limited to the backlight module with the direct type structure, and is not suitable for the lateral type backlight structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a backlight module and display device to the realization can be applied to regional dynamic adjustment technique in a poor light with the structure in a poor light of side income formula.
In a first aspect, an embodiment of the present invention provides a backlight module, including a light guide plate, set up in the reflector plate of light guide plate first side, and set up in the backlight source of light guide plate second side, first side with the second side adjoins, still includes:
the dimming film layer comprises at least two dimming partitions, and the dimming partitions are distributed in an array; the dimming film layer is arranged at least one of the following positions:
a first side of the light guide plate;
a second side of the light guide plate; and
a third side surface of the light guide plate, the third side surface being disposed opposite to the first side surface;
the reflectivity of the dimming partition is adjustable, so that the partition can modulate the emergent light of the light guide plate.
Optionally, the dimming film layer comprises:
a transparent substrate;
a light modulating unit dispersed in the transparent substrate;
wherein the dimming unit includes:
a dimming sealed housing;
a magneto-induced dimming particle disposed within the dimming sealed enclosure;
the dispersion and aggregation degree of the magneto-induced dimming particles is adjustable, so that the reflectivity of the dimming partition is adjusted.
Optionally, the shape of the dimming seal housing comprises a spherical ball shape.
Optionally, the dimming seal housing comprises a silicone rubber housing or a resin-based housing.
Optionally, the magnetically dimmable particles comprise nickel particles or ferroferric oxide particles.
Optionally, the dimming film layer and the light guide plate are integrally formed.
Optionally, the light guide plate comprises dots;
the dimming unit is dispersed in the mesh point.
Optionally, the backlight module further comprises:
the electromagnetic control layer is arranged on one side, away from the light guide plate, of the dimming film layer and comprises control partitions corresponding to the dimming partitions and isolating layers for isolating the control partitions; the control subarea can adjust the size and the direction of electromagnetic force so as to realize the adjustment of the reflectivity of the dimming subarea.
Optionally, when the dimming film layer is located on the first side surface and/or the third side surface of the light guide plate, the electromagnetic control layer is integrally disposed with the reflective sheet.
In a second aspect, an embodiment of the present invention further provides a display device, including a backlight module and a display panel disposed on a light emitting side of the backlight module, wherein the backlight module adopts any one of the backlight modules provided by the first aspect.
The embodiment of the utility model provides a backlight module includes the light guide plate, set up in the reflector plate of light guide plate first side, and set up in the backlight source of light guide plate second side, first side with the second side adjoins, still includes: the dimming film layer comprises at least two dimming partitions, and the dimming partitions are distributed in an array; the dimming film layer is arranged at least one of the following positions: a first side of the light guide plate; a second side of the light guide plate; and a third side surface of the light guide plate, the third side surface being disposed opposite to the first side surface; the reflectivity of the dimming partition is adjustable, so that the partition can modulate the emergent light of the light guide plate. Therefore, the emergent light of the light guide plate of the lateral entrance type backlight module can be subjected to partition adjustment, and the lateral entrance type backlight module can be applied to the regional backlight dynamic adjustment technology.
Drawings
Fig. 1 is a schematic structural diagram of a first backlight module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second backlight module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third backlight module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth backlight module according to an embodiment of the present invention;
fig. 5 is a schematic view of a partition structure of a dimming film layer in a backlight module according to an embodiment of the present invention, when the dimming film layer is parallel to a light emergent surface of a light guide plate;
fig. 6 is a schematic view of a partition structure of a dimming film layer in a backlight module according to an embodiment of the present invention, when the dimming film layer is parallel to a light incident surface of a light guide plate;
fig. 7 is a schematic view illustrating a first state of a dimming film according to an embodiment of the present invention;
fig. 8 is a schematic diagram illustrating a second state of the dimming film according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a fifth backlight module according to an embodiment of the present invention;
FIG. 10 is a schematic view of a light guide plate in the backlight module shown in FIG. 9;
FIG. 11 is a diagram illustrating a first state of a dimming partition in the backlight module of FIG. 9;
FIG. 12 is a diagram illustrating a second state of the dimming sub-section of the backlight module shown in FIG. 9;
fig. 13 is a schematic structural diagram of a sixth backlight module according to an embodiment of the present invention;
FIG. 14 is a schematic view illustrating another structure of the backlight module shown in FIG. 13;
fig. 15 is a schematic structural diagram of a seventh backlight module according to an embodiment of the present invention;
FIG. 16 is a schematic view illustrating another structure of the backlight module shown in FIG. 15;
fig. 17 is a schematic structural diagram of a first display device according to an embodiment of the present invention.
The embodiment of the utility model provides an in, reference numeral and corresponding feature name:
1-backlight module, 11-light guide plate, 111-lattice point, 12-reflector plate, 13-backlight light source, 14-dimming film layer, 140-dimming partition, 141-transparent substrate, 142-dimming unit; 151-a light modulating sealed enclosure, 152-magneto-dimmable microparticles; 16-an electromagnetic control layer, 161-a control zone, 162-an isolation layer; 3-display device, 31-display panel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the utility model provides a backlight module and display device adjusts luminance the rete through setting up, adjusts luminance the rete and sets up in at least one department in first side, second side (being income plain noodles) and the third side (being the play plain noodles) of light guide plate, and adjusts luminance the rete and include the subregion of adjusting luminance that the array was arranged, and the reflectivity of adjusting luminance the subregion is adjustable, can realize adjusting the subregion of the light of light guide plate outgoing to be favorable to realizing the regional dynamic adjustment technique that is shaded in the side income formula structure of being shaded.
The backlight module and the display device provided by the embodiments of the present invention are exemplarily described below with reference to fig. 1 to 17.
Referring to fig. 1 to 6, the backlight module 1 includes a light guide plate 11, a reflective sheet 12 disposed on a first side surface of the light guide plate 11, and a backlight light source 13 disposed on a second side surface of the light guide plate 11, the first side surface and the second side surface being adjacent to each other, and further includes: a dimming film layer 14 including at least two dimming partitions 140, the dimming partitions 140 being distributed in an array; the dimming film 14 is disposed at least one of the following positions: a first side surface of the light guide plate 11 (see fig. 1); a second side surface of the light guide plate 11 (see fig. 3); and a third side surface (see fig. 2) of the light guide plate 11, the third side surface being disposed opposite to the first side surface; the reflectivity of the light-adjusting partition 140 is adjustable, so that the light emitted from the light guide plate 11 can be modulated by the partition.
The backlight module 1 can be used as a passive light emitting display panel to provide backlight.
The backlight light source 13 may be an LED chip (chip), or other types of light sources known to those skilled in the art. The light guide plate 11 can homogenize the light irradiated therein by the backlight source 13, so that the light can be uniformly emitted from the light emitting surface (i.e. the third side surface) side of the light guide plate 11. The reflective sheet 12 can reflect light leaking from the first side surface of the light guide plate 11 back into the light guide plate 11 to improve the use efficiency of light.
The light-adjusting film layer 14 can independently adjust the reflectivity of each light-adjusting partition to realize that the emergent light of the light guide plate 11 corresponding to each light-adjusting partition 140 can be independently and controllably adjusted, so that the brightness partition control of the lateral backlight module can be realized, and the dynamic adjustment technology of the regional backlight of the lateral backlight structure can be realized.
For example, referring to fig. 1 and fig. 5, the dimming film layer 14 may be disposed on a first side surface of the light guide plate 11, that is, a side of the light guide plate 11 facing the reflector 12, and may implement a partition-independent adjustment of light entering the light guide plate 11 from the reflector 12, thereby implementing a partition-adjustment of emergent light of the light guide plate 11.
Alternatively, referring to fig. 2 and 5, the dimming film layer 14 may be disposed on a third side surface of the light guide plate 11, that is, a side of the light guide plate 11 away from the reflective sheet 12, that is, a light exit surface side of the light guide plate 11, and partition adjustment of the emergent light of the light guide plate 11 may be directly achieved.
Alternatively, referring to fig. 3 and 6, the dimming film layer 14 may be disposed on the second side surface of the light guide plate 11, i.e., between the light guide plate 11 and the backlight source 13, i.e., on the light incident surface side of the light guide plate 11, so as to realize independent adjustment of the partitions of the light entering the light guide plate 11 from the backlight source 13, and further realize partition adjustment of the emergent light of the second light guide plate 11.
Alternatively, referring to fig. 4 to 6, the dimming film 14 may be disposed on the second side and the third side of the light guide plate 11 at the same time, and cooperatively realize the partition adjustment of the emergent light of the light guide plate 11.
In other embodiments, the position of the dimming film layer 14 relative to each side of the light guide plate 11 can be set according to the requirement of the backlight module 1, which is not limited by the embodiment of the present invention.
In an embodiment, referring to fig. 7 and 8, the dimming film layer 14 may include: a transparent substrate 141; a light adjusting unit 142 dispersed in the transparent substrate 141; wherein, the dimming unit 142 includes: a dimming seal housing 151; a magneto-dimming particle 152 disposed in the dimming sealed case 151; the degree of dispersion and aggregation of the magneto-dimming particles 152 is adjustable to achieve adjustment of the reflectivity of the dimming partition 140.
The substrate of the light-adjusting film layer 14 is set as the transparent substrate 141, and the light transmittance thereof is equal to or greater than 85%, so that the light loss in the transparent substrate 141 is small, the light can be fully utilized, and the high brightness contrast is ensured.
In each light-adjusting partition 140, the light-adjusting unit 142 transmits and reflects light to determine the reflectivity of each light-adjusting partition 140 to light. For example, when the reflectivity of the dimming unit 142 is larger, the reflectivity of the corresponding dimming partition 140 is higher, and the dimming partition is in a dark state.
Wherein the dimming sealing case 151 can seal the magneto-induced dimming particles 152 so as to achieve adjustment of the degree of dispersion and aggregation of the magneto-induced dimming particles 152 in each dimming cell 142. Illustratively, the light tight sealed housing 151 has a high light transmittance (e.g., 85% or more) to allow light to pass through and strike the surface of the magneto-dimming particles 152 located therein.
Wherein the dispersed and aggregated state of the magneto-tunable optical particles 152 is related to the modulation effect thereof on light.
Illustratively, when the magneto-dimming particles 152 are concentrated, i.e., relatively dense, the magneto-dimming particles have strong reflection to light, low transmittance, and dark state in the corresponding region, as shown in fig. 8; when the magneto-induced optical microparticles 152 are disordered, i.e., relatively dispersed, the reflection of light is weak, the transmittance of light is high, and thus the utilization rate of light is high, and the corresponding region is in a bright state, as shown in fig. 7.
It should be noted that the magnetostrictive particles 152 are only exemplarily shown in fig. 7-8 as being arranged in an elliptical shape. In other embodiments, the magnetic dimming particles 152 may also be disposed in a spherical shape or other shapes known to those skilled in the art, and may be disposed according to the requirement of the backlight module 1, which is not limited by the embodiment of the invention.
In one embodiment, referring to fig. 7 or 8, the shape of the dimming seal housing 151 comprises a spherical shape.
With such an arrangement, the outer surface of the dimming unit 142 is smooth, so that the force applied in all directions is uniform; when the dimming cells 142 are dispersed in the dimming substrate 141, the dispersion of the dimming cells 142 can be more uniform; meanwhile, the areas of the dimming sealed housing 151 in all directions have the same transmission and reflection effects on light, so that the influence of the dimming sealed housing 151 on the light modulation effect can be weakened, and the controllable modulation effect of the dimming unit 142 on light can be realized more simply.
In other embodiments, the shape of the light-adjusting sealing housing 151 may also be an oval sphere or a rounded polyhedron, which may be set according to the requirement of the backlight module 1, and the embodiment of the present invention is not limited thereto.
In one embodiment, the dimming seal housing 151 comprises a silicone rubber housing or a resin-based housing.
Therefore, the requirement of transmittance of the light-adjusting sealed shell 151 can be met, and the material cost is low and the processing is easy; therefore, the manufacturing difficulty of the backlight module 1 is lower, and the cost is lower.
In other embodiments, the dimming sealing housing 151 may also be made of other materials known to those skilled in the art, and may be set according to the requirement of the backlight module 1, which is not limited by the embodiment of the present invention.
In one embodiment, the magneto-tunable optical particles 152 include nickel particles or ferroferric oxide particles.
Thus, the magnetostrictive fine particles 152 may be formed using an opaque material such as nickel or ferroferric oxide, and the degree of light shielding may be adjusted by adjusting the aggregation degree of the magnetostrictive fine particles 152, so that the corresponding region may be in a bright state or a dark state. Meanwhile, the material is low in cost and easy to process; therefore, the manufacturing difficulty of the backlight module 1 is lower, and the cost is lower.
In other embodiments, the magneto-induced dimming particles 152 may be made of other materials known to those skilled in the art, and may be set according to the requirement of the backlight module 1, which is not limited by the embodiment of the invention.
In an embodiment, referring to fig. 9 and 10, or referring to fig. 13 and 14, the dimming film layer 14 and the light guide plate 11 may be integrally formed.
With such an arrangement, the structure and the manufacturing process of the backlight module 1 can be simplified, which is beneficial to ensuring lower manufacturing cost.
For example, fig. 9 and 10 show an integrated structure of the dimming film layer 14 and the light guide plate 11 when the dimming film layer 14 is located on the second side of the light guide plate 11. On this basis, fig. 11 and 12 show the states of the dimming partition 140 corresponding to the dimming cell 142 implementing the bright state and the dark state, respectively. The principle of this state implementation can be understood with reference to the above explanation of fig. 7 and 8, which is not described herein.
For example, fig. 13 and 14 show an integrated structure of the dimming film layer 14 and the light guide plate 11 when the dimming film layer 14 is located on the first side of the light guide plate 11.
In an embodiment, referring to fig. 13 and 14, the light guide plate 11 includes dots 111; the dimming unit 142 can be dispersed in the dots 111, i.e., the dimming film 14 corresponds to the film in the area where the dots 111 are located.
So, the dimming unit 142 is laid to the current structure in usable light guide plate 11, and the distribution of dimming unit 142 suits with the light-emitting demand in each region of light guide plate 11, when realizing the regional light modulation of side income formula backlight structure promptly, satisfies the demand of the even light-emitting in each region of light guide plate 11 more easily, so, when reducing the design degree of difficulty and the preparation degree of difficulty, is favorable to realizing better light quality.
It should be noted that fig. 14 only shows that the shape of the dots 111 is a rectangle for example, and in other embodiments, the shape of the dots 111 may also be a circle, an ellipse, a rounded polygon, or other shapes known to those skilled in the art, which is not limited to this embodiment of the present invention.
Next, it should be noted that fig. 5, fig. 6, fig. 10 and fig. 14 only exemplarily show that the arrangement of the dimming partition 140 in the dimming film layer 14 may be 3 rows and 3 columns, 1 row and 3, 1 row and 4, or 4 rows and 4 columns. In other embodiments, the number and the array arrangement of the dimming partitions 140 may be set according to the requirement of the backlight module 1, and the embodiment of the present invention is not limited thereto.
In an embodiment, referring to fig. 15 and 16, the backlight module 1 further includes: the electromagnetic control layer 16 is arranged on one side of the dimming film layer 14, which is far away from the light guide plate 11, and comprises control partitions 161 corresponding to the dimming partitions 140 and an isolation layer 162 for separating the control partitions 161; the control sub-section 161 can adjust the magnitude and direction of the electromagnetic force to achieve the adjustment of the reflectivity of the dimming sub-section 140.
The electromagnetic control layer 16 may also be referred to as a microcircuit electromagnetic dimming layer, and may control the magnitude and direction of the electromagnetic force, so as to adjust the rotation direction or aggregation degree of the magnetic dimming particles 152.
Illustratively, when a magnetic field is applied through the electromagnetic control layer 16, the magneto-rheological light particles 152 are concentrated under the action of the adsorption force, so that the light transmittance is low and the corresponding region shows a dark state, as shown in fig. 8; when the magnetic field is removed, the magneto-induced optical particles 152 recover the disordered state, and the magneto-induced optical particles 152 can reflect the light rays for multiple times, which is beneficial to improving the light ray utilization rate, increasing the light ray transmittance, and showing the bright state in the corresponding area as shown in fig. 7.
Or, when a magnetic field is applied through the electromagnetic control layer 16, the magneto-induced optical microparticles 152 are transversely densely distributed under the action of the adsorption force, so that the light transmittance is low, and the corresponding region is in a dark state, as shown in fig. 12; when the magnetic field is removed, the magneto-induced optical particles 152 recover the disordered state, and the magneto-induced optical particles 152 can reflect the light rays for multiple times, which is beneficial to improving the light ray utilization rate, increasing the light ray transmittance, and showing the bright state in the corresponding area as shown in fig. 11.
Thus, by providing the electromagnetic control layer 16, the dimming state of the dimming unit 142 can be controlled by the microcircuit, thereby facilitating the adjustment of the local area brightness of the partition.
Meanwhile, the electromagnetic control layer 16 is set to be the control subareas 161 corresponding to the dimming subareas 140, and the control subareas 161 are separated by the isolation layer 162, so that the control subareas 161 and the dimming subareas 140 are in one-to-one correspondence and are independently controlled, that is, the dimming subareas 140 are independently controlled and adjusted.
In an embodiment, with continued reference to fig. 16, the electromagnetic control layer 16 is integrally disposed with the reflective sheet 12 when the dimming film layer 14 is located on the first side and/or the third side of the light guide plate 11.
That is, by providing the electromagnetic control layer 16 in the reflective sheet 12, a microcircuit electromagnetic reflective sheet having both a light reflection function and an electromagnetic control function can be formed, so that the film integration is high, the structure and the manufacturing process of the backlight module 1 can be simplified, and it is advantageous to ensure a low manufacturing cost.
In other embodiments, the electromagnetic control layer 16 and the reflective sheet 12 may be independently disposed, which is not limited by the embodiment of the present invention.
In other embodiments, the backlight module 1 may further include other optical film structures known to those skilled in the art, such as a diffusion sheet and a prism sheet, which are not described nor limited in the embodiments of the present invention.
On the basis of the foregoing embodiment, the embodiment of the present invention further provides a display device 3, and referring to fig. 17, the display device 3 may include a backlight module 1 and a display panel 31 disposed on the light emitting side of the backlight module 1, wherein the backlight module 1 may adopt any one of the backlight modules 1 provided by the foregoing embodiment.
The backlight module 1 can provide backlight for the display panel 31, and the display panel 31 can realize bright and dark and color display by modulating the backlight. Based on the backlight module 1, local brightness adjustment can be realized, the display device 3 can realize high dynamic range display, and the picture display effect is good.
It should be noted that the display device 3 may be a liquid crystal display device or other types of passive display devices known to those skilled in the art, and the embodiment of the present invention is not limited thereto.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A backlight module comprises a light guide plate, a reflector plate arranged on a first side surface of the light guide plate, and a backlight light source arranged on a second side surface of the light guide plate, wherein the first side surface is adjacent to the second side surface, and the backlight module further comprises:
the dimming film layer comprises at least two dimming partitions, and the dimming partitions are distributed in an array; the dimming film layer is arranged at least one of the following positions:
a first side of the light guide plate;
a second side of the light guide plate; and
a third side surface of the light guide plate, the third side surface being disposed opposite to the first side surface;
the reflectivity of the dimming partition is adjustable, so that the partition can modulate the emergent light of the light guide plate.
2. The backlight module of claim 1, wherein the dimming film layer comprises:
a transparent substrate;
a light modulating unit dispersed in the transparent substrate;
wherein the dimming unit includes:
a dimming sealed housing;
a magneto-induced dimming particle disposed within the dimming sealed enclosure;
the dispersion and aggregation degree of the magneto-induced dimming particles is adjustable, so that the reflectivity of the dimming partition is adjusted.
3. The backlight module of claim 2, wherein the shape of the dimming seal housing comprises a spherical shape.
4. The backlight module of claim 2, wherein the dimming seal housing comprises a silicone rubber housing or a resin-based housing.
5. The backlight module of claim 2, wherein the magneto-rheological light particles comprise nickel particles or ferroferric oxide particles.
6. The backlight module of claim 2, wherein the dimming film layer is integrally formed with the light guide plate.
7. The backlight module of claim 6, wherein the light guide plate comprises dots;
the dimming unit is dispersed in the mesh point.
8. The backlight module of claim 1, further comprising:
the electromagnetic control layer is arranged on one side, away from the light guide plate, of the dimming film layer and comprises control partitions corresponding to the dimming partitions and isolating layers for isolating the control partitions; the control subarea can adjust the size and the direction of electromagnetic force so as to realize the adjustment of the reflectivity of the dimming subarea.
9. The backlight module according to claim 8, wherein the dimming film layer is disposed on the first side and/or the third side of the light guide plate, and the electromagnetic control layer is integrally disposed with the reflective sheet.
10. A display device comprising a backlight module and a display panel disposed at a light exit side of the backlight module, wherein the backlight module is the backlight module of any one of claims 1 to 9.
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| CN202021304114.2U CN212322032U (en) | 2020-07-06 | 2020-07-06 | Backlight module and display device |
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| CN202021304114.2U CN212322032U (en) | 2020-07-06 | 2020-07-06 | Backlight module and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859603A (en) * | 2022-05-31 | 2022-08-05 | 广西民族大学 | LCD display screen and definition detection method thereof |
| CN115509046A (en) * | 2022-09-29 | 2022-12-23 | 厦门天马微电子有限公司 | Backlight module, display panel, control method of display panel and display device |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859603A (en) * | 2022-05-31 | 2022-08-05 | 广西民族大学 | LCD display screen and definition detection method thereof |
| CN114859603B (en) * | 2022-05-31 | 2024-05-24 | 福州恒美光电材料有限公司 | LCD display screen and definition detection method thereof |
| CN115509046A (en) * | 2022-09-29 | 2022-12-23 | 厦门天马微电子有限公司 | Backlight module, display panel, control method of display panel and display device |
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