US20200388209A1 - Micro light-emitting diode display - Google Patents
Micro light-emitting diode display Download PDFInfo
- Publication number
- US20200388209A1 US20200388209A1 US16/432,946 US201916432946A US2020388209A1 US 20200388209 A1 US20200388209 A1 US 20200388209A1 US 201916432946 A US201916432946 A US 201916432946A US 2020388209 A1 US2020388209 A1 US 2020388209A1
- Authority
- US
- United States
- Prior art keywords
- micro light
- emitting diodes
- data line
- type column
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101000607626 Homo sapiens Ubiquilin-1 Proteins 0.000 description 1
- 101001062854 Rattus norvegicus Fatty acid-binding protein 5 Proteins 0.000 description 1
- 102100039934 Ubiquilin-1 Human genes 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- 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]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
Definitions
- the present disclosure relates to a micro light-emitting diode display.
- LEDs light-emitting diodes
- circuit layouts to achieve benefits or to solve problems for displays having LEDs with smaller size may become a promising research direction.
- a micro light-emitting diode display includes a substrate, a column of first micro light-emitting diodes, a column of second micro light-emitting diodes, a plurality of row scan lines, a first type column data line, a second type column data line, a third type column data line, and a fourth type column data line.
- the column of the first micro light-emitting diodes are on the substrate.
- Each of the first micro light-emitting diodes has a first top surface and a first bottom surface.
- the column of the second micro light-emitting diodes are on the substrate.
- Each of the second micro light-emitting diodes has a second top surface and a second bottom surface.
- Each of the row scan lines is electrically connected to one of the first top surfaces and one of the second top surfaces.
- the row scan lines are configured to provide a scan-on voltage and a scan-off voltage to said one of the first top surfaces, and to one of the second top surfaces.
- the first type column data line is configured to provide first data voltages to some of the first micro light-emitting diodes through the first bottom surfaces.
- the second type column data line is configured to provide second data voltages to a remaining of the first micro light-emitting diodes through the first bottom surfaces, in which the second type column data line is not crossed over by other data lines.
- the third type column data line is configured to provide third data voltages to some of the second micro light-emitting diodes through the second bottom surfaces, in which the third type column data line is not crossed over by other data lines.
- the fourth type column data line is configured to provide fourth data voltages to a remaining of the second micro light-emitting diodes through the second bottom surfaces.
- FIG. 1 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure
- FIG. 2 is a schematic cross-sectional view of a light-emitting diode display taken along line A-A′ shown in FIG. 1 according to some embodiments of the present disclosure
- FIG. 2 ′ is a schematic cross-sectional view of a light-emitting diode display taken along line B-B′ shown in FIG. 1 according to some embodiments of the present disclosure
- FIG. 3 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure
- FIG. 4 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure.
- FIG. 5 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure.
- over may refer to a relative position of one layer with respect to other layers.
- One layer “over” or “on” another layer or bonded “to” another layer may be directly in contact with the other layer or may have one or more intervening layers.
- One layer “between” layers may be directly in contact with the layers or may have one or more intervening layers.
- FIG. 1 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 1000 .
- FIG. 2 is a schematic cross-sectional view of the micro light-emitting diode display 1000 taken along a line A-A′ shown in FIG. 1 .
- FIG. 2 ′ is a schematic cross-sectional view of the micro light-emitting diode display 1000 along a line B-B′ shown in FIG. 1 .
- a micro light-emitting diode display 1000 is provided.
- the micro light-emitting diode display 1000 includes a substrate 100 , a column of first micro light-emitting diodes 110 , a column of second micro light-emitting diodes 120 , a plurality of row scan lines SC, a first type column data line DA 1 , a second type column data line DA 2 , a third type column data line DA 3 , and a fourth type column data line DA 4 .
- the column of the first micro light-emitting diodes 110 are on the substrate 100 .
- Each of the first micro light-emitting diodes 110 has a first top surface 1102 and a first bottom surface 1104 .
- the column of the second micro light-emitting diodes 120 are on the substrate 100 .
- Each of the second micro light-emitting diodes 120 has a second top surface 1202 and a second bottom surface 1204 .
- each of the row scan lines SC is electrically connected to one of the first top surfaces 1102 and one of the second top surfaces 1202 .
- Each of the row scan lines SC are configured to provide a scan-on voltage and a scan-off voltage to one of the first top surfaces 1102 , and to one of the second top surfaces 1202 .
- the first type column data line DA 1 is configured to provide first data voltages to some of the first micro light-emitting diodes 110 through the first bottom surfaces 1104 thereof.
- the second type column data line DA 2 is configured to provide second data voltages to a remaining of the first micro light-emitting diodes 110 through the first bottom surfaces 1104 thereof.
- auxiliary portions DA 21 and DA 22 so that the second type column data line DA 2 is electrically connected to (or in contact with) one of the first micro light-emitting diodes 110 as shown in FIG. 2 ′.
- auxiliary portions DA 31 and DA 32 so that the third type column data line DA 3 is electrically connected to (or in contact with) one of the second micro light-emitting diodes 120 as shown in FIG. 2 .
- there are auxiliary portions DA 41 and DA 42 so that the fourth type column data line DA 4 is electrically connected to (or in contact with) one of the second micro light-emitting diodes 120 as shown in FIG. 2 ′.
- the row scan lines SC provide only two values of voltage levels (i.e., the scan-on voltage and the scan-off voltage to respectively light up and turn off light-emitting diodes), and the first, second, third, fourth column data lines DA 1 , DA 2 , DA 3 , and DA 4 respectively provide grayscale voltage levels to determine light intensities of the light-emitting diodes.
- FIG. 3 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 1000 ′.
- the first type column data line DA 1 is configured to provide the first data voltages to half of the first micro light-emitting diodes 110 through the first bottom surfaces 1104 thereof
- the second type column data line DA 2 is configured to provide second data voltages to the other half of the first micro light-emitting diodes 110 through the first bottom surfaces 1104 thereof.
- the half of the first micro light-emitting diodes 110 as mentioned are arranged at upper half positions of the column of the first micro light-emitting diodes 110 (see FIG. 3 ).
- FIG. 3 is only used to give a hint that “the half” of the first micro light-emitting diodes 110 are arranged at upper two positions of the column in the above embodiments. In some other cases, there can have more than four diodes in one column. For example, if there are one hundred first micro light-emitting diodes 110 in one column, then “the half” of the first micro light-emitting diodes 110 will be the upper fifty of the first micro light-emitting diodes 110 . In some other embodiments, the half of the first micro light-emitting diodes 110 as mentioned are arranged at lower half positions of the column of the first micro light-emitting diodes 110 .
- the some of the first micro light-emitting diodes 110 as mentioned are arranged at odd positions of the column of the first micro light-emitting diodes 110 , and the remaining of the first micro light-emitting diodes 110 are arranged at even positions of the column of the first micro light-emitting diodes 110 (see FIG. 1 ). In some other embodiments, the some of the first micro light-emitting diodes 110 as mentioned are arranged at even positions of the column of the first micro light-emitting diodes 110 , and the remaining of the first micro light-emitting diodes 110 are arranged at odd positions of the column of the first micro light-emitting diodes 110 .
- the second type column data line DA 2 is not crossed over by other data lines, which means that all types of column data lines DA 1 , DA 2 , DA 3 , and DA 4 (also, DA 5 and DA 6 which will be illustrated in other embodiments later) present in the embodiments of the present disclosure are on the same “layer” during the manufacturing processes of the micro light-emitting diode display 1000 .
- all types of column data lines can be manufactured in the same set of processes.
- the “not crossed over” as mentioned is represented from a view angle as shown in FIG. 1 . The meaning of “not crossed over” will not be repeated again in the following content.
- the third type column data line DA 3 is configured to provide third data voltages to some of the second micro light-emitting diodes 120 through the second bottom surfaces 1204 .
- the third type column data line DA 3 is configured to provide the third data voltages to half of the second micro light-emitting diodes 120 through the second bottom surfaces 1204 .
- the some of the second micro light-emitting diodes 120 as mentioned are arranged at odd positions of the column of the second micro light-emitting diodes 120 , and the remaining of the second micro light-emitting diodes 120 are arranged at even positions of the column of the second micro light-emitting diodes 120 (see FIG. 1 ).
- the some of the second micro light-emitting diodes 120 as mentioned are arranged at even positions of the column of the second micro light-emitting diodes 120 , and the remaining of the second micro light-emitting diodes are arranged at odd positions of the column of the second micro light-emitting diodes.
- the third type column data line DA 3 is not crossed over by other data lines.
- the fourth type column data line DA 4 is configured to provide fourth data voltages to a remaining of the second micro light-emitting diodes 120 through the second bottom surfaces 1204 .
- FIGS. 1 to 3 are able to decrease a frame time since two types of data lines which can be individually controlled are used simultaneously to provide data voltages (e.g., first data voltages and second data voltages) to the same column but different light-emitting diodes (e.g., the upper half and the lower half of the first type light-emitting diodes 110 or the odd positions and the even positions of the first type light-emitting diodes 110 ).
- data voltages e.g., first data voltages and second data voltages
- different light-emitting diodes e.g., the upper half and the lower half of the first type light-emitting diodes 110 or the odd positions and the even positions of the first type light-emitting diodes 110 .
- two of the row scan lines SC provide the scan-on voltage to two of the first micro light-emitting diodes 110
- the first type column data line DA 1 and the second type column data line DA 2 respectively provide one of the first data voltages and one of the second data voltages to light up said two of the first micro light-emitting diodes 110 with specified light intensities.
- one frame time can be decreased.
- a conventional layout there is 1/N of one frame time to light up one of the first micro light-emitting diodes 110 assuming a number of the first micro light-emitting diodes 110 is N.
- the row scan lines SC other than the two as mentioned provide the scan-off voltage such that the first micro light-emitting diodes 110 other than said two of the first micro light-emitting diodes 110 are not lighted up. It is noted that the method of driving the column of the first micro light-emitting diodes 110 can be adopted to driving the column of the second micro light-emitting diodes 120 with the first type column data line DA 1 and the second type column data line DA 2 respectively replaced by the third type column data line DA 3 and the fourth type column data line DA 4 , and will not be repeated again.
- lateral lengths of each of the first micro light-emitting diodes 110 and the second micro light-emitting diodes 120 are smaller than or equal to about 100 ⁇ m.
- the restriction of the lateral lengths as mentioned helps to realize the layouts in the embodiments of the present disclosure in which two types of column data lines are on opposite sides of one column of light-emitting diodes, and two types of column data lines are between two columns of light-emitting diodes. If a lateral length of a light-emitting diode is too large, there is no enough space to realize the embodiments as mentioned in the present disclosure.
- the first type column data line DA 1 and the second type column data line DA 2 are on opposite sides of the column of the first micro light-emitting diodes 110 .
- the second type column data line DA 2 and the third type column data line DA 3 are between the column of the first micro light-emitting diodes 110 and the column of the second micro light-emitting diodes 120 .
- the third type column data line DA 3 and the fourth type column data line DA 4 are on opposite sides of the column of the second micro light-emitting diodes 120 .
- FIG. 4 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 2000 .
- FIG. 5 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 2000 ′.
- the micro light-emitting diode display 2000 or 2000 ′ further includes a column of third micro light-emitting diodes 130 , a fifth type column data line DA 5 , and a sixth type column data line DA 6 as compared to the micro light-emitting diode display 1000 and 1000 ′.
- auxiliary portions DA 51 and DA 61 so that the fifth type column data line DA 5 and the sixth type column data line DA 6 are electrically connected to (or in contact with) one of the third micro light-emitting diodes 130 as shown in FIGS. 4 and 5 .
- the column of the third micro light-emitting diodes 130 are on the substrate 100 .
- Each of the row scan lines SC is electrically connected to one of the third micro light-emitting diodes 130 , and each of the row scan lines SC is configured to provide the scan-on voltage and the scan-off voltage to one of the third micro light-emitting diodes 130 .
- the fifth type column data line DA 5 is configured to provide fifth data voltages to some of the third micro light-emitting diodes 130 .
- the fifth type column data line DA 5 is not crossed over by other data lines.
- the sixth type column data line SC 6 is configured to provide sixth data voltages to a remaining of the third micro light-emitting diodes 130 .
- each of the row scan lines SC is electrically connected to a top surface of the third light-emitting diode 130 .
- the fifth type column data line DA 5 is configured to provide the fifth data voltages to some of the third micro light-emitting diodes 130 through bottom surfaces thereof (not shown for the similarity with the embodiments illustrating the first/second micro devices 110 , 120 ).
- the sixth type column data line DA 6 is configured to provide the sixth data voltages to the remaining of the third micro light-emitting diodes 130 through bottom surfaces thereof (also not shown for the similarity as mentioned).
- the fifth type column data line DA 5 is configured to provide the fifth data voltages to half of the third micro light-emitting diodes 130 .
- the some of the third micro light-emitting diodes 130 as mentioned are arranged at odd positions of the column of the third micro light-emitting diodes 130 , and the remaining of the third micro light-emitting diodes 130 are arranged at even positions of the column of the third micro light-emitting diodes 130 (see FIG. 4 ).
- the some of the third micro light-emitting diodes 130 are arranged at even positions of the column of the third micro light-emitting diodes, and the remaining of the third micro light-emitting diodes 130 are arranged at odd positions of the column of the third micro light-emitting diodes 130 .
- the half of the third micro light-emitting diodes 130 as mentioned are arranged at upper half positions of the column of the third micro light-emitting diodes 130 (see FIG. 5 as a hint).
- the fifth type column data line DA 5 and the sixth type column data line DA 6 are on opposite sides of the column of the third micro light-emitting diodes 130 .
- the fourth type column data line DA 4 and the fifth type column data line DA 5 are between the column of the second micro light-emitting diodes 120 and the column of the third micro light-emitting diodes 130 . It is noted that the method of driving the column of the first micro light-emitting diodes 110 as mentioned above can be adopted to drive the column of the third micro light-emitting diodes 130 with the first type column data line DA 1 and the second type column data line DA 2 respectively replaced by the fifth type column data line DA 5 and the sixth type column data line DA 6 .
- a micro light-emitting diode display in which two types of data lines are respectively configured to provide data voltages to different light-emitting diodes in the same column.
- a frame time can be decreased to enhance the resolution of the micro light-emitting diode display, and/or a dynamic range of the light-emitting diodes in the micro light-emitting diode display can be increased.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
Abstract
Description
- The present disclosure relates to a micro light-emitting diode display.
- The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.
- In recent years, light-emitting diodes (LEDs) have become popular in general and commercial lighting applications. As a size of one LED become much smaller compared to conventional LEDs, new issues emerge. As such, some novel displays with improvements on circuit layouts to achieve benefits or to solve problems for displays having LEDs with smaller size may become a promising research direction.
- According to some embodiments of the present disclosure, a micro light-emitting diode display is provided. The micro light-emitting diode display includes a substrate, a column of first micro light-emitting diodes, a column of second micro light-emitting diodes, a plurality of row scan lines, a first type column data line, a second type column data line, a third type column data line, and a fourth type column data line. The column of the first micro light-emitting diodes are on the substrate. Each of the first micro light-emitting diodes has a first top surface and a first bottom surface. The column of the second micro light-emitting diodes are on the substrate. Each of the second micro light-emitting diodes has a second top surface and a second bottom surface. Each of the row scan lines is electrically connected to one of the first top surfaces and one of the second top surfaces. The row scan lines are configured to provide a scan-on voltage and a scan-off voltage to said one of the first top surfaces, and to one of the second top surfaces. The first type column data line is configured to provide first data voltages to some of the first micro light-emitting diodes through the first bottom surfaces. The second type column data line is configured to provide second data voltages to a remaining of the first micro light-emitting diodes through the first bottom surfaces, in which the second type column data line is not crossed over by other data lines. The third type column data line is configured to provide third data voltages to some of the second micro light-emitting diodes through the second bottom surfaces, in which the third type column data line is not crossed over by other data lines. The fourth type column data line is configured to provide fourth data voltages to a remaining of the second micro light-emitting diodes through the second bottom surfaces.
- It is to be understood that both the foregoing general description and the following detailed description are by examples, and are intended to provide further explanation of the disclosure as claimed.
- The disclosure can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:
-
FIG. 1 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure; -
FIG. 2 is a schematic cross-sectional view of a light-emitting diode display taken along line A-A′ shown inFIG. 1 according to some embodiments of the present disclosure; -
FIG. 2 ′ is a schematic cross-sectional view of a light-emitting diode display taken along line B-B′ shown inFIG. 1 according to some embodiments of the present disclosure; -
FIG. 3 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure; -
FIG. 4 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure; and -
FIG. 5 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display according to some embodiments of the present disclosure. - Reference will now be made in detail to the present embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
- In various embodiments, the description is made with reference to figures. However, certain embodiments may be practiced without one or more of these specific details, or in combination with other known methods and configurations. In the following description, numerous specific details are set forth, such as specific configurations, dimensions, and processes, etc., in order to provide a thorough understanding of the present disclosure. In other instances, well-known semiconductor processes and manufacturing techniques have not been described in particular detail in order to not unnecessarily obscure the present disclosure. Reference throughout this specification to “one embodiment,” “an embodiment” or the like means that a particular feature, structure, configuration, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure. Thus, the appearances of the phrase “in one embodiment,” “in an embodiment” or the like in various places throughout this specification are not necessarily referring to the same embodiment of the disclosure. Furthermore, the particular features, structures, configurations, or characteristics may be combined in any suitable manner in one or more embodiments.
- The terms “over,” “to,” “between” and “on” as used herein may refer to a relative position of one layer with respect to other layers. One layer “over” or “on” another layer or bonded “to” another layer may be directly in contact with the other layer or may have one or more intervening layers. One layer “between” layers may be directly in contact with the layers or may have one or more intervening layers.
- Reference is made to
FIGS. 1 and 2 .FIG. 1 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 1000.FIG. 2 is a schematic cross-sectional view of the micro light-emitting diode display 1000 taken along a line A-A′ shown inFIG. 1 .FIG. 2 ′ is a schematic cross-sectional view of the micro light-emitting diode display 1000 along a line B-B′ shown inFIG. 1 . A micro light-emitting diode display 1000 is provided. The micro light-emitting diode display 1000 includes asubstrate 100, a column of first micro light-emitting diodes 110, a column of second micro light-emitting diodes 120, a plurality of row scan lines SC, a first type column data line DA1, a second type column data line DA2, a third type column data line DA3, and a fourth type column data line DA4. The column of the first micro light-emitting diodes 110 are on thesubstrate 100. Each of the first micro light-emitting diodes 110 has a firsttop surface 1102 and afirst bottom surface 1104. The column of the second micro light-emitting diodes 120 are on thesubstrate 100. Each of the second micro light-emitting diodes 120 has asecond top surface 1202 and asecond bottom surface 1204. In some embodiments, each of the row scan lines SC is electrically connected to one of the firsttop surfaces 1102 and one of thesecond top surfaces 1202. Each of the row scan lines SC are configured to provide a scan-on voltage and a scan-off voltage to one of thefirst top surfaces 1102, and to one of thesecond top surfaces 1202. - In some embodiments, the first type column data line DA1 is configured to provide first data voltages to some of the first micro light-
emitting diodes 110 through thefirst bottom surfaces 1104 thereof. In some embodiments, the second type column data line DA2 is configured to provide second data voltages to a remaining of the first micro light-emitting diodes 110 through thefirst bottom surfaces 1104 thereof. In some embodiments, there are auxiliary portions DA11 and DA12 so that the first type column data line DA1 is electrically connected to (or in contact with) one of the first micro light-emitting diodes 110 as shown inFIG. 2 . In some embodiments, there are auxiliary portions DA21 and DA22 so that the second type column data line DA2 is electrically connected to (or in contact with) one of the first micro light-emitting diodes 110 as shown inFIG. 2 ′. In some embodiments, there are auxiliary portions DA31 and DA32 so that the third type column data line DA3 is electrically connected to (or in contact with) one of the second micro light-emitting diodes 120 as shown inFIG. 2 . In some embodiments, there are auxiliary portions DA41 and DA42 so that the fourth type column data line DA4 is electrically connected to (or in contact with) one of the second micro light-emitting diodes 120 as shown inFIG. 2 ′. - Normally, the row scan lines SC provide only two values of voltage levels (i.e., the scan-on voltage and the scan-off voltage to respectively light up and turn off light-emitting diodes), and the first, second, third, fourth column data lines DA1, DA2, DA3, and DA4 respectively provide grayscale voltage levels to determine light intensities of the light-emitting diodes.
-
FIG. 3 is a schematic diagram illustrating electrical connections of a portion of a micro light-emitting diode display 1000′. In some embodiments, the first type column data line DA1 is configured to provide the first data voltages to half of the first micro light-emitting diodes 110 through thefirst bottom surfaces 1104 thereof, and the second type column data line DA2 is configured to provide second data voltages to the other half of the first micro light-emitting diodes 110 through thefirst bottom surfaces 1104 thereof. In some embodiments, the half of the first micro light-emitting diodes 110 as mentioned are arranged at upper half positions of the column of the first micro light-emitting diodes 110 (seeFIG. 3 ). - It is noted that
FIG. 3 is only used to give a hint that “the half” of the first micro light-emitting diodes 110 are arranged at upper two positions of the column in the above embodiments. In some other cases, there can have more than four diodes in one column. For example, if there are one hundred first micro light-emittingdiodes 110 in one column, then “the half” of the first micro light-emittingdiodes 110 will be the upper fifty of the first micro light-emittingdiodes 110. In some other embodiments, the half of the first micro light-emittingdiodes 110 as mentioned are arranged at lower half positions of the column of the first micro light-emittingdiodes 110. In some embodiments, the some of the first micro light-emittingdiodes 110 as mentioned are arranged at odd positions of the column of the first micro light-emittingdiodes 110, and the remaining of the first micro light-emittingdiodes 110 are arranged at even positions of the column of the first micro light-emitting diodes 110 (seeFIG. 1 ). In some other embodiments, the some of the first micro light-emittingdiodes 110 as mentioned are arranged at even positions of the column of the first micro light-emittingdiodes 110, and the remaining of the first micro light-emittingdiodes 110 are arranged at odd positions of the column of the first micro light-emittingdiodes 110. - In some embodiments, the second type column data line DA2 is not crossed over by other data lines, which means that all types of column data lines DA1, DA2, DA3, and DA4 (also, DA5 and DA6 which will be illustrated in other embodiments later) present in the embodiments of the present disclosure are on the same “layer” during the manufacturing processes of the micro light-emitting
diode display 1000. In other words, all types of column data lines can be manufactured in the same set of processes. Specifically, the “not crossed over” as mentioned is represented from a view angle as shown inFIG. 1 . The meaning of “not crossed over” will not be repeated again in the following content. - The third type column data line DA3 is configured to provide third data voltages to some of the second micro light-emitting
diodes 120 through the second bottom surfaces 1204. In some embodiments, the third type column data line DA3 is configured to provide the third data voltages to half of the second micro light-emittingdiodes 120 through the second bottom surfaces 1204. In some embodiments, the some of the second micro light-emittingdiodes 120 as mentioned are arranged at odd positions of the column of the second micro light-emittingdiodes 120, and the remaining of the second micro light-emittingdiodes 120 are arranged at even positions of the column of the second micro light-emitting diodes 120 (seeFIG. 1 ). In some other embodiments, the some of the second micro light-emittingdiodes 120 as mentioned are arranged at even positions of the column of the second micro light-emittingdiodes 120, and the remaining of the second micro light-emitting diodes are arranged at odd positions of the column of the second micro light-emitting diodes. In some embodiments, the third type column data line DA3 is not crossed over by other data lines. The fourth type column data line DA4 is configured to provide fourth data voltages to a remaining of the second micro light-emittingdiodes 120 through the second bottom surfaces 1204. - The above embodiments which can be illustrated or hinted by
FIGS. 1 to 3 are able to decrease a frame time since two types of data lines which can be individually controlled are used simultaneously to provide data voltages (e.g., first data voltages and second data voltages) to the same column but different light-emitting diodes (e.g., the upper half and the lower half of the first type light-emittingdiodes 110 or the odd positions and the even positions of the first type light-emitting diodes 110). As an example, two of the row scan lines SC provide the scan-on voltage to two of the first micro light-emittingdiodes 110, and the first type column data line DA1 and the second type column data line DA2 respectively provide one of the first data voltages and one of the second data voltages to light up said two of the first micro light-emittingdiodes 110 with specified light intensities. As such, one frame time can be decreased. - On the other hand, one can choose not to decrease the frame time but increase a dynamic range of the first micro light-emitting
diodes 110 and/or the second micro light-emittingdiodes 120 by increasing a time period for lighting up one of the first light-emittingdiodes 110 and/or one of the second light-emittingdiodes 120. Specifically, in a conventional layout there is 1/N of one frame time to light up one of the first micro light-emittingdiodes 110 assuming a number of the first micro light-emittingdiodes 110 is N. Using the layout in the embodiments of the present disclosure as mentioned above, there is 2/N of one frame time to light up one of the first micro light-emittingdiodes 110 when there are half of the first micro light-emittingdiodes 110 electrically connected to and controlled by the first type column data line DA1, and another half of the first micro light-emittingdiodes 110 electrically connected to and controlled by the second type column data line DA2. It is noted that a combination of simultaneously decreasing the frame time and increasing the dynamic range as mentioned is also within the scope of the present disclosure. - The row scan lines SC other than the two as mentioned provide the scan-off voltage such that the first micro light-emitting
diodes 110 other than said two of the first micro light-emittingdiodes 110 are not lighted up. It is noted that the method of driving the column of the first micro light-emittingdiodes 110 can be adopted to driving the column of the second micro light-emittingdiodes 120 with the first type column data line DA1 and the second type column data line DA2 respectively replaced by the third type column data line DA3 and the fourth type column data line DA4, and will not be repeated again. - In some embodiments, lateral lengths of each of the first micro light-emitting
diodes 110 and the second micro light-emittingdiodes 120 are smaller than or equal to about 100 μm. The restriction of the lateral lengths as mentioned helps to realize the layouts in the embodiments of the present disclosure in which two types of column data lines are on opposite sides of one column of light-emitting diodes, and two types of column data lines are between two columns of light-emitting diodes. If a lateral length of a light-emitting diode is too large, there is no enough space to realize the embodiments as mentioned in the present disclosure. Specifically, in some embodiments, the first type column data line DA1 and the second type column data line DA2 are on opposite sides of the column of the first micro light-emittingdiodes 110. In some embodiments, the second type column data line DA2 and the third type column data line DA3 are between the column of the first micro light-emittingdiodes 110 and the column of the second micro light-emittingdiodes 120. In some embodiments, the third type column data line DA3 and the fourth type column data line DA4 are on opposite sides of the column of the second micro light-emittingdiodes 120. - Reference is made to
FIGS. 4 and 5 .FIG. 4 is a schematic diagram illustrating electrical connections of a portion of a micro light-emittingdiode display 2000.FIG. 5 is a schematic diagram illustrating electrical connections of a portion of a micro light-emittingdiode display 2000′. In some embodiments, the micro light-emittingdiode display diodes 130, a fifth type column data line DA5, and a sixth type column data line DA6 as compared to the micro light-emittingdiode display diodes 130 as shown inFIGS. 4 and 5 . The column of the third micro light-emittingdiodes 130 are on thesubstrate 100. Each of the row scan lines SC is electrically connected to one of the third micro light-emittingdiodes 130, and each of the row scan lines SC is configured to provide the scan-on voltage and the scan-off voltage to one of the third micro light-emittingdiodes 130. The fifth type column data line DA5 is configured to provide fifth data voltages to some of the third micro light-emittingdiodes 130. The fifth type column data line DA5 is not crossed over by other data lines. The sixth type column data line SC6 is configured to provide sixth data voltages to a remaining of the third micro light-emittingdiodes 130. In some embodiments, each of the row scan lines SC is electrically connected to a top surface of the third light-emittingdiode 130. In some embodiments, the fifth type column data line DA5 is configured to provide the fifth data voltages to some of the third micro light-emittingdiodes 130 through bottom surfaces thereof (not shown for the similarity with the embodiments illustrating the first/secondmicro devices 110, 120). In some embodiments, the sixth type column data line DA6 is configured to provide the sixth data voltages to the remaining of the third micro light-emittingdiodes 130 through bottom surfaces thereof (also not shown for the similarity as mentioned). - In some embodiments, the fifth type column data line DA5 is configured to provide the fifth data voltages to half of the third micro light-emitting
diodes 130. In some embodiments, the some of the third micro light-emittingdiodes 130 as mentioned are arranged at odd positions of the column of the third micro light-emittingdiodes 130, and the remaining of the third micro light-emittingdiodes 130 are arranged at even positions of the column of the third micro light-emitting diodes 130 (seeFIG. 4 ). In some other embodiments, the some of the third micro light-emittingdiodes 130 are arranged at even positions of the column of the third micro light-emitting diodes, and the remaining of the third micro light-emittingdiodes 130 are arranged at odd positions of the column of the third micro light-emittingdiodes 130. In some embodiments, the half of the third micro light-emittingdiodes 130 as mentioned are arranged at upper half positions of the column of the third micro light-emitting diodes 130 (seeFIG. 5 as a hint). The fifth type column data line DA5 and the sixth type column data line DA6 are on opposite sides of the column of the third micro light-emittingdiodes 130. In some embodiments, the fourth type column data line DA4 and the fifth type column data line DA5 are between the column of the second micro light-emittingdiodes 120 and the column of the third micro light-emittingdiodes 130. It is noted that the method of driving the column of the first micro light-emittingdiodes 110 as mentioned above can be adopted to drive the column of the third micro light-emittingdiodes 130 with the first type column data line DA1 and the second type column data line DA2 respectively replaced by the fifth type column data line DA5 and the sixth type column data line DA6. - In summary, a micro light-emitting diode display is provided in which two types of data lines are respectively configured to provide data voltages to different light-emitting diodes in the same column. As such, a frame time can be decreased to enhance the resolution of the micro light-emitting diode display, and/or a dynamic range of the light-emitting diodes in the micro light-emitting diode display can be increased.
- Although the present disclosure has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.
- It will be apparent to those skilled in the art that various modifications and variations can be made to the method and the structure of the present disclosure without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the present disclosure cover modifications and variations of this disclosure provided they fall within the scope of the following claims.
Claims (19)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/432,946 US10861381B1 (en) | 2019-06-06 | 2019-06-06 | Micro light-emitting diode display having two or more types of data lines |
CN201911024478.7A CN112053637A (en) | 2019-06-06 | 2019-10-25 | Miniature LED display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/432,946 US10861381B1 (en) | 2019-06-06 | 2019-06-06 | Micro light-emitting diode display having two or more types of data lines |
Publications (2)
Publication Number | Publication Date |
---|---|
US10861381B1 US10861381B1 (en) | 2020-12-08 |
US20200388209A1 true US20200388209A1 (en) | 2020-12-10 |
Family
ID=73609365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/432,946 Active US10861381B1 (en) | 2019-06-06 | 2019-06-06 | Micro light-emitting diode display having two or more types of data lines |
Country Status (2)
Country | Link |
---|---|
US (1) | US10861381B1 (en) |
CN (1) | CN112053637A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240030193A1 (en) * | 2021-09-14 | 2024-01-25 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel and manufacturing method thereof |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101169053B1 (en) * | 2005-06-30 | 2012-07-26 | 엘지디스플레이 주식회사 | Organic Light Emitting Diode Display |
TWI364601B (en) * | 2007-05-16 | 2012-05-21 | Chimei Innolux Corp | Light emitting diode backlight module and driving method thereof |
JP5439913B2 (en) * | 2009-04-01 | 2014-03-12 | セイコーエプソン株式会社 | Electro-optical device, driving method thereof, and electronic apparatus |
TW201040920A (en) * | 2009-05-06 | 2010-11-16 | Chi Mei Optoelectronics Corp | Liquid crystal display |
US8933433B2 (en) * | 2012-07-30 | 2015-01-13 | LuxVue Technology Corporation | Method and structure for receiving a micro device |
CN103077955B (en) * | 2013-01-25 | 2016-03-30 | 京东方科技集团股份有限公司 | A kind of organic LED pixel structure, display unit |
US9111464B2 (en) * | 2013-06-18 | 2015-08-18 | LuxVue Technology Corporation | LED display with wavelength conversion layer |
KR102113173B1 (en) * | 2013-07-03 | 2020-05-21 | 삼성디스플레이 주식회사 | Organinc light emitting display device |
KR102072678B1 (en) * | 2013-07-09 | 2020-02-04 | 삼성디스플레이 주식회사 | Organic light emitting device |
TWI467528B (en) * | 2013-10-30 | 2015-01-01 | Au Optronics Corp | Light emitting diode display panel and method of fabricating the same |
TWI665800B (en) * | 2015-06-16 | 2019-07-11 | 友達光電股份有限公司 | Light emitting diode display and manufacturing method thereof |
WO2017014564A1 (en) * | 2015-07-23 | 2017-01-26 | 서울반도체 주식회사 | Display device and method for manufacturing same |
CN106816140B (en) * | 2015-11-27 | 2019-04-05 | 群创光电股份有限公司 | Display panel and its driving method |
KR102552298B1 (en) * | 2016-08-31 | 2023-07-10 | 삼성디스플레이 주식회사 | Display device and driving method thereof |
US10026757B1 (en) * | 2017-03-12 | 2018-07-17 | Mikro Mesa Technology Co., Ltd. | Micro-light emitting display device |
KR102351618B1 (en) * | 2017-08-28 | 2022-01-17 | 삼성디스플레이 주식회사 | Display device |
CN108899332A (en) * | 2018-07-17 | 2018-11-27 | 南方科技大学 | A kind of Micro-LED display panel and its manufacturing method |
KR102586783B1 (en) * | 2018-10-05 | 2023-10-12 | 삼성디스플레이 주식회사 | Display device |
CN109272882B (en) * | 2018-12-10 | 2024-03-29 | 云赛智联股份有限公司 | Transparent small-spacing LED display screen |
-
2019
- 2019-06-06 US US16/432,946 patent/US10861381B1/en active Active
- 2019-10-25 CN CN201911024478.7A patent/CN112053637A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240030193A1 (en) * | 2021-09-14 | 2024-01-25 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN112053637A (en) | 2020-12-08 |
US10861381B1 (en) | 2020-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9892672B2 (en) | Transparent display device and transparent display panel | |
CN112437988A (en) | Light emitting device, method of manufacturing the same, and display apparatus including the same | |
US10756288B2 (en) | Organic light emitting display panel and organic light emitting display device including the same | |
EP3989287A1 (en) | Display device, and method for manufacturing same | |
TWI711199B (en) | Microled display panel | |
CN114375497A (en) | Display device and method of manufacturing the same | |
EP3886172A1 (en) | Light-emitting device and display device having same | |
KR20210074704A (en) | Transparent display panel and transparent display device including the same | |
US11751437B2 (en) | Organic light emitting display panel and organic light emitting display device including the same | |
KR20210053391A (en) | Display device | |
KR20210016187A (en) | Display device and method of fabricating the display device | |
KR20210058399A (en) | Transparent display panel and transparent display device including the same | |
CN115485845A (en) | Pixel, display device including the same, and method of manufacturing the display device | |
CN112542488A (en) | Organic light emitting display panel and organic light emitting display device including the same | |
US10861381B1 (en) | Micro light-emitting diode display having two or more types of data lines | |
US11600221B2 (en) | Display apparatus | |
KR102651246B1 (en) | Display panel and display device including the display panel | |
KR20210059323A (en) | Transparent display panel and transparent display device including the same | |
US20190333434A1 (en) | High fill rate display | |
CN113675235A (en) | Pixel and display device including the same | |
TWM616496U (en) | Light emitting display device having high aperture ratio | |
CN114651325A (en) | Display device and method for manufacturing the same | |
CN112992986B (en) | Light-emitting display device | |
US20230232687A1 (en) | Display device | |
US11581228B2 (en) | Display panel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
AS | Assignment |
Owner name: MIKRO MESA TECHNOLOGY CO., LTD., SAMOA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, LI-YI;REEL/FRAME:049413/0947 Effective date: 20190606 |
|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: SMAL); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY Year of fee payment: 4 |