CN113744661A - Display device - Google Patents
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- CN113744661A CN113744661A CN202111144905.2A CN202111144905A CN113744661A CN 113744661 A CN113744661 A CN 113744661A CN 202111144905 A CN202111144905 A CN 202111144905A CN 113744661 A CN113744661 A CN 113744661A
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- 230000000712 assembly Effects 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a display device including: a plurality of display units, each display unit including a first display assembly and a second display assembly; the first display driving chip is connected with the first display assemblies of the plurality of display units so as to control the first display assemblies to work; and the second display driving chip is connected with the second display assemblies of the plurality of display units so as to control the second display assemblies to work. The display device solves the problem of poor use reliability of the display device in the prior art.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a display device.
Background
In the prior art, a display device generally depends on a plurality of densely distributed pixel points to realize display, and different display effects can be realized by driving corresponding pixel points to work through a chip. However, when some pixels of the display device are damaged, blind or defective dots will appear, which affects the display effect. As the number of pixels of the display device increases, the probability of occurrence of such a failure increases, which affects the use of the display device.
Taking the LED display screen as an example, it drives a plurality of LED lamps through driver chip and carries out image display, and every LED lamp uses as a pixel, when a certain LED lamp damages, just can lead to the disappearance of demonstration content to unable normal demonstration content.
Therefore, the display device in the related art has a problem of poor reliability in use.
Disclosure of Invention
The invention mainly aims to provide a display device to solve the problem of poor use reliability of the display device in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a display device including: a plurality of display units, each display unit including a first display assembly and a second display assembly; the first display driving chip is connected with the first display assemblies of the plurality of display units so as to control the first display assemblies to work; and the second display driving chip is connected with the second display assemblies of the plurality of display units so as to control the second display assemblies to work.
Further, the first display assembly and the second display assembly each include a plurality of display lamps.
Further, the plurality of display lamps of each display unit are arranged in m rows and n columns; along the direction of the row or the column, the distances between any two adjacent display lamps are equal; wherein m and n are both natural numbers greater than 1, and m is equal to n.
Further, the display lamp is an LED lamp.
Further, the first display assembly comprises two first display lamps, the second display assembly comprises two second display lamps, and the two first display lamps and the two second display lamps are arranged in a quadrilateral position relation.
Further, for each display unit, two first display lamps are arranged in an adjacent relationship and two second display lamps are arranged in an adjacent relationship.
Further, for the display device: the display units are arranged in j rows, j is a natural number greater than 0, and each row of display units comprises a plurality of display units; along the direction of the column, the display lamps adjacent to any one first display lamp are all first display lamps; and along the direction of the columns, the display lamps adjacent to any one second display lamp are all second display lamps.
Further, for each display unit, two first display lamps are arranged in a diagonal relationship, and two second display lamps are arranged in a diagonal relationship.
Further, for the display device: the display units are arranged in j rows, j is a natural number greater than 0, and each row of display units comprises a plurality of display units; along the direction of the row, the display lamps adjacent to any one first display lamp are all second display lamps; and along the direction of the columns, the display lamps adjacent to any one second display lamp are all first display lamps.
Further, the display device further comprises a plurality of first connecting lines and a plurality of second connecting lines, the plurality of first connecting lines are connected with the first display driving chip, and the plurality of second connecting lines are connected with the second display driving chip: each first connecting line is sequentially connected with the first display components of the plurality of corresponding display units according to the direction of the column, and each second connecting line is sequentially connected with the second display components of the plurality of corresponding display units according to the direction of the column; and/or, for each display unit, two first display lamps and two second display lamps are arranged in a square positional relationship.
The display device applying the technical scheme of the invention comprises: a plurality of display units, each display unit including a first display assembly and a second display assembly; the first display driving chip is connected with the first display assemblies of the plurality of display units so as to control the first display assemblies to work; and the second display driving chip is connected with the second display assemblies of the plurality of display units so as to control the second display assemblies to work. The first display driving chips are arranged to control the first display components of the plurality of display units to work, the second display driving chips are arranged to control the second display components of the plurality of display units to work, and when one of the first display components or the first display driving chips is damaged, the second display driving chips can still normally drive the corresponding second display components to work, so that the corresponding display units can normally display; when one second display component or the second display driving chip is damaged, the first display driving chip can still normally drive the corresponding first display component to work, so that the corresponding display unit can normally display. Therefore, the problem that the display device is abnormal due to the fact that one display assembly is damaged or the display driving chip is damaged can be effectively solved, and the use reliability of the display device is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of a first embodiment of a display device according to the invention;
fig. 2 shows a schematic structural view of a second embodiment of a display device according to the present invention.
Wherein the figures include the following reference numerals:
1. a display unit; 11. a first display assembly; 111. a first display lamp; 12. a second display assembly; 121. a second display lamp; 2. a first display driving chip; 3. and a second display driving chip.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides a display device including: a plurality of display units 1, each display unit 1 including a first display component 11 and a second display component 12; the first display driving chips 2 are connected with the first display assemblies 11 of the plurality of display units 1 so as to control the first display assemblies 11 to work; and the second display driving chips 3, the second display driving chips 3 are connected with the second display components 12 of the plurality of display units 1, so as to control the second display components 12 to work. The first display driving chips 2 are arranged to control the first display components 11 of the plurality of display units 1 to work, the second display driving chips 3 are arranged to control the second display components 12 of the plurality of display units 1 to work, and when one of the first display components 11 or the first display driving chips 2 is damaged, the second display driving chips 3 can still normally drive the corresponding second display components 12 to work, so that the corresponding display units 1 can normally display; when one of the second display components 12 or the second display driving chip 3 is damaged, the first display driving chip 2 can still normally drive the corresponding first display component 11 to work, so that the corresponding display unit 1 normally displays. Therefore, the problem that the display device is abnormal due to the fact that one display assembly is damaged or the display driving chip is damaged can be effectively solved, and the use reliability of the display device is improved.
Specifically, the first display assembly 11 and the second display assembly 12 each include a plurality of display lamps.
In this embodiment, the first display component 11 and the second display component 12 are both configured to include a plurality of display lamps, and for the first display component 11 or the second display component 12, after any one of the display lamps is damaged, the remaining display lamp can still operate, which is beneficial to further improving the reliability of the display device. The mode of using the backup display driving chip and the backup display lamp in a combined mode can effectively reduce the risk that the display device cannot normally display due to display lamp failure or display driving chip failure, and when one display lamp of the display device is damaged to cause the adjacent display lamp to be interfered, the display lamp driven by the backup display driving chip can still meet the display requirement, and the use reliability of the display device can be improved. Of course, the first display assembly 11 and/or the second display assembly 12 may be one.
Specifically, the plurality of display lamps of each display unit 1 are arranged in m rows and n columns; along the direction of the row or the column, the distances between any two adjacent display lamps are equal; wherein m and n are both natural numbers greater than 1, and m is equal to n.
That is, for the display apparatus, a plurality of display lamps are uniformly arranged, which can ensure the harmony of the display scale of the display apparatus and avoid the distortion of the picture. It should be noted that the rows and the columns are only used to illustrate that the plurality of display lamps are arranged in two different directions, and the directions of the rows and the directions of the columns are not necessarily perpendicular to each other, but may also be in an inclined relationship. The rows are not necessarily in a horizontal direction, and the column pages are not necessarily in a vertical direction.
Specifically, the display lamp is an LED lamp. In this embodiment, the display lamp is an LED lamp, and by adopting the above technical scheme in the LED lamp display device, the operational reliability of the LED lamp display device can be effectively improved, and the problem of display error of the LED lamp display device due to damage of one LED lamp or failure of a driving chip is reduced.
Specifically, the first display assembly 11 includes two first display lamps 111, the second display assembly 12 includes two second display lamps 121, and the two first display lamps 111 and the two second display lamps 121 are arranged in a quadrangular positional relationship.
That is, each display unit 1 includes four display lamps, i.e., two first display lamps 111 and two second display lamps 121, which are arranged in a quadrangular positional relationship, or the centers of the two first display lamps 111 and the centers of the two second display lamps 121 are respectively arranged at four vertex positions of the quadrangle correspondingly. Therefore, the first display lamp 111 and the second display lamp 121 are both backed up, one display lamp can still work when the other display lamp is damaged, and the other display driving chip can still drive the corresponding display lamp to work when the two first display lamps 111 or the two second display lamps 121 or one display driving chip is damaged, so that the normal display of the display device is ensured, and the display reliability of the display device is effectively ensured. And because four display lamps are arranged in a quadrilateral position relation, each display unit 1 can be ensured to have a more regular display area, so that the display device can display images or characters more harmoniously, and the risk of picture deformation is reduced.
As shown in fig. 1, in one embodiment, two first display lamps 111 are disposed in an adjacent relationship and two second display lamps 121 are disposed in an adjacent relationship for each display unit 1. In the present embodiment, the two first display lamps 111 are disposed in an adjacent relationship, and the two second display lamps 121 are disposed in an adjacent relationship, or the centers of the two first display lamps 111 are respectively disposed at two end points of the same side of the quadrilateral structure, and the centers of the two second display lamps 121 are respectively disposed at two end points of the other side of the quadrilateral structure. By adopting the arrangement mode, on the basis of realizing the backup of the display lamps, the wiring of each first display lamp 111 and each second display lamp 121 is simplified, the convenience for manufacturing the display device is facilitated, and the manufacturing cost of the display device is reduced.
Specifically, for a display device: the display units 1 are arranged in j rows, j is a natural number larger than 0, and each row of display units 1 comprises a plurality of display units 1; along the direction of the column, the display lamps adjacent to any one first display lamp 111 are all the first display lamps 111; in the column direction, the display lamps adjacent to any one of the second display lamps 121 are the second display lamps 121.
That is to say, in this embodiment, for each column of the display unit 1, the plurality of first display lamps 111 included therein are arranged in a column, and the plurality of second display lamps 121 included therein are also arranged in a column, and for each column of the display unit, only two sets of connecting lines extending in the column direction are required to respectively connect the plurality of first display lamps 111 and the plurality of second display lamps 121, so that the connecting lines are very convenient, and further the manufacturing of the display device is facilitated.
As shown in fig. 2, in another embodiment, two first display lamps 111 are arranged in a diagonal relationship and two second display lamps 121 are arranged in a diagonal relationship for each display unit 1. The two first display lamps 111 are arranged in a diagonal relationship, and the two second display lamps 121 are also arranged in a diagonal relationship, that is, the two first display lamps 111 are respectively correspondingly arranged at two vertexes of one diagonal of the quadrilateral structure, and the two second display lamps 121 are respectively correspondingly arranged at two vertexes of the other diagonal of the quadrilateral structure. By adopting the arrangement mode, the layout of the display lamps is optimized, the arrangement of the first display lamp 111 and the second display lamp 121 in each display unit 1 can be more uniform, the display effect can be improved, especially when part of the display lamps are damaged, the corresponding display units 1 can still be ensured to uniformly emit light, and the situation that the display effect is influenced because part of the display units 1 are not displayed is avoided.
Specifically, for a display device: the display units 1 are arranged in j rows, j is a natural number larger than 0, and each row of display units 1 comprises a plurality of display units 1; along the direction of the column, the display lamps adjacent to any one of the first display lamps 111 are all the second display lamps 121; in the column direction, the display lamps adjacent to any one of the second display lamps 121 are the first display lamps 111.
That is, in the present embodiment, the first display lamps 111 and the second display lamps 121 are arranged in an interlaced manner for each column of display lamps, and it can be understood that, at this time, for each column of display units 1, wiring for the plurality of first display lamps 111 or wiring for the plurality of second display lamps 121 respectively needs to be performed in a detour manner. Although the wiring is complicated, the position layout of the display lamps can be optimized, and particularly when part of the display lamps are damaged, the corresponding display units 1 can still be ensured to emit light uniformly, which is beneficial to improving the display effect.
Specifically, the display device further includes a plurality of first connecting lines and a plurality of second connecting lines, the plurality of first connecting lines are all connected with the first display driving chip 2, and the plurality of second connecting lines are all connected with the second display driving chip 3: each first connecting line is sequentially connected with the first display assemblies 11 of a plurality of corresponding display units 1 according to the direction of the column, and each second connecting line is sequentially connected with the second display assemblies 12 of a plurality of corresponding display units 1 according to the direction of the column; and/or, two first display lamps 111 and two second display lamps 121 are arranged in a square positional relationship for each display unit 1.
That is to say, the two first display lamps 111 and the two second display lamps 121 are correspondingly arranged at the four vertices of the square, so that the overall shape of the finally composed display unit 1 is also the shape of the square, which can ensure that the proportion of the characters or images displayed by the final display device is more harmonious, and avoid the occurrence of deformation to influence the display effect.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
a display device of an embodiment of the present invention includes: a plurality of display units 1, each display unit 1 including a first display component 11 and a second display component 12; the first display driving chips 2 are connected with the first display assemblies 11 of the plurality of display units 1 so as to control the first display assemblies 11 to work; and the second display driving chips 3, the second display driving chips 3 are connected with the second display components 12 of the plurality of display units 1, so as to control the second display components 12 to work. The first display driving chips 2 are arranged to control the first display components 11 of the plurality of display units 1 to work, the second display driving chips 3 are arranged to control the second display components 12 of the plurality of display units 1 to work, and when one of the first display components 11 or the first display driving chips 2 is damaged, the second display driving chips 3 can still normally drive the corresponding second display components 12 to work, so that the corresponding display units 1 can normally display; when one of the second display components 12 or the second display driving chip 3 is damaged, the first display driving chip 2 can still normally drive the corresponding first display component 11 to work, so that the corresponding display unit 1 normally displays. Therefore, the problem that the display device is abnormal due to the fact that one display assembly is damaged or the display driving chip is damaged can be effectively solved, and the use reliability of the display device is improved.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A display device, comprising:
a plurality of display units (1), each of the display units (1) comprising a first display assembly (11) and a second display assembly (12);
the first display driving chip (2), the first display driving chip (2) is connected with the first display components (11) of the plurality of display units (1) so as to control the first display components (11) to work;
and the second display driving chip (3) is connected with the second display assemblies (12) of the plurality of display units (1) so as to control the second display assemblies (12) to work.
2. A display device according to claim 1, wherein the first display assembly (11) and the second display assembly (12) each comprise a plurality of display lights.
3. A display device according to claim 2, wherein the plurality of display lamps of each display unit (1) are arranged in m rows and n columns; the distance between any two adjacent display lamps is equal along the direction of the row or the column;
wherein m and n are both natural numbers greater than 1, and m is equal to n.
4. A display device as claimed in claim 2 or 3, characterised in that the display lamp is an LED lamp.
5. The display device according to claim 1, wherein the first display unit (11) includes two first display lamps (111), and the second display unit (12) includes two second display lamps (121), and the two first display lamps (111) and the two second display lamps (121) are arranged in a quadrangular positional relationship.
6. A display device as claimed in claim 5, characterised in that, for each display unit (1), two first display lamps (111) are arranged in adjacent relationship and two second display lamps (121) are arranged in adjacent relationship.
7. The display device according to claim 6, wherein for the display device:
the display units (1) are arranged in j rows, j is a natural number larger than 0, and each row of the display units (1) comprises the display units (1);
along the direction of the column, the display lamp adjacent to any one first display lamp (111) is the first display lamp (111); and along the direction of the column, the display lamp adjacent to any one second display lamp (121) is the second display lamp (121).
8. A display device according to claim 5, wherein for each of said display units (1), two of said first display lamps (111) are arranged in a diagonal relationship and two of said second display lamps (121) are arranged in a diagonal relationship.
9. The display device according to claim 8, wherein for the display device:
the display units (1) are arranged in j rows, j is a natural number larger than 0, and each row of the display units (1) comprises the display units (1);
along the direction of the column, the display lamp adjacent to any one first display lamp (111) is the second display lamp (121); and along the direction of the column, the display lamp adjacent to any one second display lamp (121) is the first display lamp (111).
10. The display device according to claim 7 or 9, further comprising a plurality of first wirings each connected to the first display driving chip (2) and a plurality of second wirings each connected to the second display driving chip (3): each first connecting line is sequentially connected with the first display components (11) of a plurality of corresponding display units (1) according to the direction of the column, and each second connecting line is sequentially connected with the second display components (12) of a plurality of corresponding display units (1) according to the direction of the column; and/or the presence of a gas in the gas,
for each of the display units (1), two of the first display lamps (111) and two of the second display lamps (121) are arranged in a square positional relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144905.2A CN113744661A (en) | 2021-09-28 | 2021-09-28 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144905.2A CN113744661A (en) | 2021-09-28 | 2021-09-28 | Display device |
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| CN113744661A true CN113744661A (en) | 2021-12-03 |
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| CN202111144905.2A Pending CN113744661A (en) | 2021-09-28 | 2021-09-28 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148895A (en) * | 1994-03-22 | 1997-04-30 | 理查德·S·诺曼 | Efficient direct cell replacement fault tolerant structure support completely integrated system with means of direct communication with system operator |
| CN205140426U (en) * | 2015-11-05 | 2016-04-06 | 利亚德光电股份有限公司 | Led display screen |
| CN111028762A (en) * | 2019-12-31 | 2020-04-17 | 厦门天马微电子有限公司 | Display device |
| CN112289909A (en) * | 2020-10-10 | 2021-01-29 | Oppo广东移动通信有限公司 | Electronic equipment, display module and repairing method thereof |
| CN112820202A (en) * | 2019-10-30 | 2021-05-18 | 海信视像科技股份有限公司 | Display device and display method thereof |
| CN216212060U (en) * | 2021-09-28 | 2022-04-05 | 深圳利亚德光电有限公司 | Display device |
-
2021
- 2021-09-28 CN CN202111144905.2A patent/CN113744661A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148895A (en) * | 1994-03-22 | 1997-04-30 | 理查德·S·诺曼 | Efficient direct cell replacement fault tolerant structure support completely integrated system with means of direct communication with system operator |
| CN205140426U (en) * | 2015-11-05 | 2016-04-06 | 利亚德光电股份有限公司 | Led display screen |
| CN112820202A (en) * | 2019-10-30 | 2021-05-18 | 海信视像科技股份有限公司 | Display device and display method thereof |
| CN111028762A (en) * | 2019-12-31 | 2020-04-17 | 厦门天马微电子有限公司 | Display device |
| CN112289909A (en) * | 2020-10-10 | 2021-01-29 | Oppo广东移动通信有限公司 | Electronic equipment, display module and repairing method thereof |
| CN216212060U (en) * | 2021-09-28 | 2022-04-05 | 深圳利亚德光电有限公司 | Display device |
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