CN109728066B - Display panel and display device - Google Patents
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- CN109728066B CN109728066B CN201910019412.2A CN201910019412A CN109728066B CN 109728066 B CN109728066 B CN 109728066B CN 201910019412 A CN201910019412 A CN 201910019412A CN 109728066 B CN109728066 B CN 109728066B
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Abstract
The invention discloses a display panel and a display device. The display panel includes: a first substrate layer having a first surface and a second surface facing away from each other, the first substrate layer including a plurality of first substrate blocks arranged in sequence, the first substrate blocks being provided with first light emitting devices on a first surface side; a second substrate layer provided on a second surface side of the first substrate layer, the second substrate layer including a plurality of second substrate blocks provided in this order; and each second substrate block is connected with the corresponding adjacent first substrate block through the interconnection structure, so that when the adjacent first substrate blocks are far away from each other, the corresponding second substrate blocks can be driven by the interconnection structure to move to be flush with the plurality of first substrate blocks. According to the display panel and the display device provided by the embodiment of the invention, the area of the display panel is greatly increased after stretching, and the stretching amount of the display panel is increased.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a display device.
Background
The Organic Light-Emitting Diode (OLED) display panel has a very wide application prospect because it does not need a backlight, and has excellent properties such as high contrast, thin thickness, flexibility, and the like.
With the rapid development of the display industry, people put forward many new requirements on display technology. In recent years, stretch display has received much attention in the display field as a new generation of a novel display technology with a wide application prospect.
In order to realize or improve the stretching performance of the current display panel, the stretching wire is usually made into a curved shape or the like to improve the stretching ability, or the stretching performance is improved by providing a hole groove on the elastic substrate. Although the stretchability can be improved to a certain degree by the two methods, the requirements of higher and higher stretchability can not be met, the stretching life is short, and after the screen body is stretched for a plurality of times and a large amount of times, the screen body is easy to deform locally or lose efficacy.
Disclosure of Invention
The invention provides a display panel and a display device, which further improve the tensile property of the display panel.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes: a first substrate layer having a first surface and a second surface facing away from each other, the first substrate layer including a plurality of first substrate blocks arranged in sequence, the first substrate blocks being provided with first light emitting devices on a first surface side; the second substrate layer is arranged opposite to the second surface of the first substrate layer and comprises a plurality of second substrate blocks which are arranged in sequence; and each second substrate block is connected with the corresponding adjacent first substrate block through the interconnection structure, so that when the adjacent first substrate blocks are far away from each other, the corresponding second substrate blocks can be driven by the interconnection structure to move to be flush with the plurality of first substrate blocks.
According to an aspect of the embodiments of the present invention, the plurality of first substrate blocks and the plurality of second substrate blocks are disposed to be offset from each other, wherein the second substrate blocks are disposed corresponding to a gap between two adjacent first substrate blocks.
According to one aspect of an embodiment of the invention, the interconnect structure is a resilient interconnect structure.
According to an aspect of an embodiment of the invention, the resilient interconnection structure is preformed to be curved.
According to an aspect of the embodiments of the invention, the display panel has an initial state in which the elastic interconnection structure is not under tension and a stretched state in which the elastic interconnection structure is stretched to a state in which the second substrate block is flush with the first substrate block, in the initial state, the elastic interconnection structure is curved to allow the first substrate layer and the second substrate layer to be stacked, and in the stretched state, the elastic interconnection structure is transformed into a straight shape by the first substrate block and the second substrate block.
According to an aspect of an embodiment of the invention, the resilient interconnection structure is preformed in at least one of an S-bend shape, an M-bend shape, and a U-bend shape.
According to one aspect of the embodiment of the invention, the interconnection structure comprises an elastic substrate and an electrical connection wire arranged on the elastic substrate, wherein the material of the electrical connection wire is a liquid metal material or a nano-silver material.
According to an aspect of an embodiment of the present invention, a second light emitting device is disposed on the second substrate block.
According to an aspect of the embodiments of the invention, the display panel has an initial state in which the second light emitting device is turned off and a stretched state in which the second substrate block is flush with the first substrate block and stretched by a stretching force, and the second light emitting device operates in the stretched state.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel described above.
According to the display panel and the display device provided by the embodiment of the invention, the plurality of second substrate blocks and the first substrate blocks are positioned at different layers in the initial state of the display panel, and when the display panel is in a stretching state due to tension, the adjacent first substrate blocks are away from each other and drive the corresponding second substrate blocks to move to be flush with the plurality of first substrate blocks through the interconnection structure. The plurality of second substrate blocks and the plurality of first substrate blocks are jointly used as the stretched display screen body, so that the area of the stretched display panel is greatly increased, and the stretching amount of the display panel is increased.
When the display panel is not under tension, the plurality of second substrate blocks and the first substrate blocks are positioned on different layers, the plurality of first substrate blocks are used as display screen bodies in an initial state, and the plurality of second substrate blocks are hidden below the display screen bodies, so that the design space of the screen bodies is saved.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
Fig. 1 shows a schematic structural view of a display panel according to a first embodiment of the present invention before stretching;
fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present invention after stretching;
fig. 3 is a schematic structural view of a display panel according to a second embodiment of the present invention before stretching;
fig. 4 is a schematic diagram illustrating a stretched structure of a display panel according to a second embodiment of the present invention.
In the figure:
100-a display panel; 100' -a display panel;
110-a first substrate layer; 111-a first substrate block; 110 a-a first surface; 110 b-a second surface;
120-a second substrate layer; 121-a second substrate block;
130-an interconnect structure;
141-a first light emitting device;
142-a second light emitting device.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
An embodiment of the present invention provides a display panel, and fig. 1 and 2 respectively show schematic structural diagrams of the display panel according to the first embodiment of the present invention before and after stretching. The display panel 100 includes a first substrate layer 110, a second substrate layer 120, and an interconnect structure 130.
The first substrate layer 110 has a first surface 110a and a second surface 110b facing away from each other, and the first substrate layer 110 includes a plurality of first substrate blocks 111 disposed in sequence. Wherein the first substrate block 111 is provided with a first light emitting device 141 on the first surface 110a side, and the first light emitting device 141 may be an OLED light emitting device.
The second substrate layer 120 is disposed opposite to the second surface 110b of the first substrate layer 110, and the second substrate layer 120 includes a plurality of second substrate blocks 121 disposed in sequence.
Each second substrate block 121 is connected to a corresponding adjacent first substrate block 111 through the interconnection structure 130, so that when the adjacent first substrate blocks 111 are far away from each other, the interconnection structure 130 can drive the corresponding second substrate blocks 121 to move to be flush with the plurality of first substrate blocks 111.
According to the display panel 100 of the embodiment of the invention, the display panel 100 has an initial state, a stretched state and a stretched state. When the display panel 100 is not under tension, it is in an initial state; a tensile force is applied to the display panel 100, that is, when the display panel 100 receives a tensile force, the display panel is in a tensile state; as the stretching force applied to the display panel 100 gradually increases, the display panel 100 is stretched until the second substrate block 121 is flush with the first substrate block 111, and is in a stretched state.
As shown in fig. 1, in the initial state of the display panel 100, the plurality of second substrate blocks 121 and the first substrate block 111 are located at different layers. As shown in fig. 2, when the display panel 100 is under a stretching force and in a stretched state, two adjacent first substrate blocks 111 are away from each other, and the interconnection structure 130 drives the corresponding second substrate block 121 to move to be flush with the plurality of first substrate blocks 111. After stretching, the plurality of second substrate blocks 121 and the plurality of first substrate blocks 111 are jointly used as the stretched display screen body, so that the area of the display panel 100 after stretching is greatly increased, and the stretching amount of the display panel 100 is increased.
As shown in fig. 1, when the display panel 100 is not under tension, the plurality of second substrate blocks 121 and the first substrate block 111 are located at different layers, the plurality of first substrate blocks 111 are used as the display screen body in the initial state, and the plurality of second substrate blocks 121 are hidden under the display screen body, thereby saving the design space of the display screen body.
In some embodiments, the plurality of first substrate blocks 111 and the plurality of second substrate blocks 121 are disposed in a staggered manner, wherein the second substrate blocks 121 are disposed corresponding to a gap between two adjacent first substrate blocks 111, so that the interconnection structures 130 at two ends of each second substrate block 121 can be symmetrically disposed, and thus have the same stretching length when stretched, thereby improving uniformity of the stretching stress of the stretched screen body and uniformity of display.
In this embodiment, the interconnect structure 130 is an elastic interconnect structure 130. In some embodiments, the interconnect structure 130 includes an elastic substrate and an electrical connection line disposed on the elastic substrate, the elastic substrate may be made of a flexible resin material such as Polyimide (PI), and the electrical connection line is made of a conductive material with good ductility such as a liquid metal material or a nano-silver material.
The resilient interconnect structure 130 may be preformed to be curved. In some embodiments, the resilient interconnection structure 130 may be prefabricated in at least one of an S-bend shape, an M-bend shape, and a U-bend shape, such that the resilient interconnection structure 130 having a longer actual length can be accommodated in a limited space.
As described above, the display panel 100 has an initial state in which the panel is not under tension and a stretched state in which the panel is stretched to a state in which the second substrate block 121 is flush with the first substrate block 111.
In this embodiment, in the initial state, the elastic interconnection structure 130 is bent to laminate the first substrate layer 110 and the second substrate layer 120. In the stretched state, the first substrate block 111 and the second substrate block 121 transform the flexible interconnect structure 130 into a flat shape.
According to the display panel 100 of the embodiment of the invention, the interconnection structure 130 is an elastic interconnection structure, which not only provides electrical connection and signal connection between the first substrate block 111 and the second substrate block 121, and the adjacent first substrate block 111, but also provides a pre-fabricated elastic restoring force, even if the second substrate layer 120 is restored to an elastic force of being laminated with the first substrate layer 110, so that the display panel 100 is in a contracted state in an initial state, and a planar design space of the initial state of the screen body is saved.
The advantages of the display panel 100 of the present embodiment will be more clearly understood by performing the stretching experiment and the reliability experiment on the display panel 100 of the embodiment of the present invention and the stretchable display panel of the comparative example of the prior art.
In the stretching experiment, the display panel 100 of the present embodiment and the display panel of the comparative example were observed for the limit stretching times and the deformation state of the panel body after the same stretching times. It can be found through experiments that the display panel 100 of the present embodiment has an increased limit stretching frequency and a smaller deformation of the panel body after the same stretching frequency compared to the display panel of the comparative example.
In the reliability experiment, the failure degree after the multiple stretching of the display panel 100 of the present embodiment and the display panel of the comparative example was observed. It can be experimentally found that after a plurality of times of stretching, the failure degree of the display panel 100 of the present embodiment is smaller than that of the comparative example.
In summary, according to the display panel 100 of the embodiment of the invention, not only the stretching performance is improved, but also the stretching life of the display panel 100 is prolonged, and the risk of local failure and deformation of the screen body after multiple large-scale stretching is reduced.
Fig. 3 and 4 are schematic views showing structures of a display panel according to a second embodiment of the present invention before and after stretching, respectively. The display panel 100' includes a first substrate layer 110, a second substrate layer 120, and an interconnect structure 130.
The first substrate layer 110 has a first surface 110a and a second surface 110b facing away from each other, and the first substrate layer 110 includes a plurality of first substrate blocks 111 disposed in sequence. Wherein the first substrate block 111 is provided with a first light emitting device 141 on the first surface 110a side, and the first light emitting device 141 may be an OLED light emitting device. The second substrate layer 120 is disposed opposite to the second surface 110b of the first substrate layer 110, and the second substrate layer 120 includes a plurality of second substrate blocks 121 disposed in sequence.
Each second substrate block 121 is connected to a corresponding adjacent first substrate block 111 through the interconnection structure 130, so that when the adjacent first substrate blocks 111 are far away from each other, the interconnection structure 130 can drive the corresponding second substrate blocks 121 to move to be flush with the plurality of first substrate blocks 111.
The display panel 100' according to the embodiment of the invention has an initial state, a stretched state and a stretched state. When the display panel 100' is not under tension, it is in an initial state; a tensile force is applied to the display panel 100 ', that is, when the display panel 100' is subjected to a tensile force, it is in a tensile state; as the stretching force applied to the display panel 100 'is gradually increased, the display panel 100' is stretched until the second substrate block 121 is flush with the first substrate block 111, and is in a stretched state.
As shown in fig. 3, in the initial state of the display panel 100', the plurality of second substrate blocks 121 and the first substrate block 111 are located at different layers. As shown in fig. 2, when the display panel 100' is under tension and in a stretched state, the adjacent first substrate blocks 111 are away from each other, and the interconnection structure 130 drives the corresponding second substrate blocks 121 to move to be flush with the plurality of first substrate blocks 111. The stretched plurality of second substrate blocks 121 and the plurality of first substrate blocks 111 are jointly used as the stretched display screen body, so that the area of the stretched display panel 100 'is greatly increased, and the stretching amount of the display panel 100' is increased.
As shown in fig. 3, when the display panel 100' is not under tension, the plurality of second substrate blocks 121 and the first substrate block 111 are located at different layers, the plurality of first substrate blocks 111 are used as the display screen body in the initial state, and the plurality of second substrate blocks 121 are hidden under the display screen body, thereby saving the design space of the display screen body.
Unlike the first embodiment, in the display panel 100' according to the second embodiment of the present invention, the second substrate block 121 is provided with the second light emitting device 142 thereon, and the second light emitting device 142 may be an OLED light emitting device.
According to the display panel 100 ' of the embodiment of the invention, as shown in fig. 4, in the stretched state of the display panel 100 ', the plurality of second substrate blocks 121 and the plurality of first substrate blocks 111 jointly serve as the stretched display screen body, and the plurality of second light emitting devices 142 and the plurality of first light emitting devices 141 jointly serve as the light emitting pixels of the stretched display screen body for displaying the whole image, so that the display fineness of the stretchable display panel 100 ' is improved, and the display effect thereof is improved.
As described above, the display panel 100' has an initial state in which the second substrate block 121 is not under tension and a stretched state in which the second substrate block 121 is stretched to be flush with the first substrate block 111.
In some embodiments, the display panel 100' may be configured to: in the initial state, the second light emitting device 142 is turned off, and in the stretched state, the second light emitting device 142 operates. That is, the second light emitting device 142 of the display panel 100' only emits light in the stretched state, so that the energy-saving effect is achieved on the premise of ensuring the display effect of the stretched display screen body.
The driving manner of the second light emitting device 142 to emit light only in the stretched state can be realized in various ways, and one of the implementation manners will be exemplified below.
For example, in some embodiments, the plurality of first substrate plates 111 of the first substrate layer 110 are arranged in a plurality of rows with gaps formed between adjacent rows. The plurality of second substrate plates 121 of the second substrate layer 120 are also arranged in a plurality of rows and are disposed corresponding to the gap formed by the first substrate layer 110. On the screen surface of the display panel 100', there may be: the 1 st, 3 rd, 5 th, 7 th, 9 th and … … th rows are arranged as a first substrate block 111, and first light emitting devices 141 are correspondingly arranged; lines 2, 4, 6, 8, 10, … … are provided as second substrate layers 120, with second light emitting devices 142 arranged correspondingly. The above is only an example, and the actual arrangement mode can be set according to the actual design requirement.
Each row of the first and second light emitting devices 141 and 142 is connected to a row driver of the display panel 100'. The row driver is configured with at least two driving modes, and when the display panel 100 'is not stretched and in an initial state, the row driver performs a first driving mode, which may be interlaced driving, that drives the light emitting device display of the 1 st, 3 rd, 5 th, 7 th, 9 th, … … th row of the display panel 100', i.e. drives only the first light emitting device 141 display.
When the display panel 100' is stretched to be in a stretched state, the plurality of second light emitting devices 142 are flush with the first light emitting devices 141. The row driver performs a second driving mode, which may be full row driving, and drives the light emitting devices of all rows of the display panel 100' to display, i.e., drives the first and second light emitting devices 141 and 142 to display simultaneously.
The manner in which the row driver switches between the first driving mode and the second driving mode may also be implemented in a variety of ways, one of which is illustrated below.
For example, in some embodiments, a sensor for detecting tensile stress may be embedded in the interconnect structure 130, and the sensor detects in real time that the received tensile stress information is transmitted to the row driver or a mode selection device connected to the row driver. The row driver or the mode selection device is provided with a threshold stress value, and the row driver (or the mode selection device controls the row driver) executes the first driving mode when the real-time tensile stress detected by the sensor is smaller than the threshold stress value. When the real-time tensile stress detected by the sensor reaches or even exceeds the threshold stress value, the row driver or the mode selection device determines that the display panel 100' is in the stretched state at this time, and the row driver (or the mode selection device controls the row driver) executes the second driving mode described above.
In some embodiments, the plurality of first substrate blocks 111 and the plurality of second substrate blocks 121 are disposed in a staggered manner, wherein the second substrate blocks 121 are disposed corresponding to a gap between two adjacent first substrate blocks 111, so that the interconnection structures 130 at two ends of each second substrate block 121 can be symmetrically disposed, and thus have the same stretching length when stretched, thereby improving uniformity of the stretching stress of the stretched screen body and uniformity of display.
The resilient interconnect structure 130 may be preformed to be curved. In some embodiments, the resilient interconnection structure 130 may be prefabricated in at least one of an S-bend shape, an M-bend shape, and a U-bend shape, such that the resilient interconnection structure 130 having a longer actual length can be accommodated in a limited space.
In this embodiment, in the initial state, the elastic interconnection structure 130 is bent to laminate the first substrate layer 110 and the second substrate layer 120. In the stretched state, the first substrate block 111 and the second substrate block 121 transform the flexible interconnect structure 130 into a flat shape.
According to the display panel 100 'of the embodiment of the invention, the interconnection structure 130 is an elastic interconnection structure, which not only provides electrical connection and signal connection between the first substrate block 111 and the second substrate block 121, and the adjacent first substrate block 111, but also provides a pre-fabricated elastic restoring force, i.e., the second substrate layer 120 is restored to an elastic force of being laminated with the first substrate layer 110, so that the display panel 100' is in a contracted state in an initial state, and a planar design space of the initial state of the screen body is saved.
In addition, experiments prove that the display panel 100 'of the embodiment of the invention not only improves the tensile property, but also improves the tensile service life of the display panel 100', and reduces the risk of local failure and deformation of the screen body after being stretched for a plurality of times.
The embodiment of the invention also provides a display device which comprises the display panel. Since the plurality of second substrate blocks 121 and the first substrate blocks 111 are located at different layers in the initial state of the display panel 100, when the display panel is under tension and in a stretched state, two adjacent first substrate blocks 111 are away from each other, and the interconnection structure 130 drives the corresponding second substrate blocks 121 to move to be flush with the plurality of first substrate blocks 111. The plurality of second substrate blocks 121 and the plurality of first substrate blocks 111 are jointly used as the stretched display screen body, so that the area of the stretched display panel is greatly increased, the stretching amount of the display panel is increased, and the stretching performance of the display device is further improved.
When the display panel is not under tension, the plurality of second substrate blocks 121 and the first substrate block 111 are located at different layers, the plurality of first substrate blocks 111 are used as display screen bodies in an initial state, and the plurality of second substrate blocks 121 are hidden below the display screen bodies, so that the design space of the screen bodies and the display device is saved.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A display panel, comprising:
a first substrate layer having a first surface and a second surface facing away from each other, the first substrate layer including a plurality of first substrate blocks provided in this order, the first substrate blocks being provided with a first light-emitting device on the first surface side;
the second substrate layer is arranged opposite to the second surface of the first substrate layer and comprises a plurality of second substrate blocks which are sequentially arranged, in an initial state, the plurality of second substrate blocks and the first substrate block are positioned on different layers, and second light-emitting devices are arranged on the second substrate blocks;
each second substrate block is connected with the corresponding adjacent first substrate block through the interconnection structure, so that when the adjacent first substrate blocks are far away from each other, the corresponding second substrate blocks can be driven by the interconnection structure to move to be flush with the plurality of first substrate blocks, and a sensor for detecting tensile stress is embedded in the interconnection structure; and
a row driver, the first light emitting device and the second light emitting device both connected to the row driver of the display panel, the row driver having a threshold stress value therein,
the display panel has an initial state without tensile force and a stretched state in which the second substrate block is flush with the first substrate block when being subjected to tensile force, the real-time tensile stress detected by the sensor is smaller than the threshold stress value in the initial state, the row driver executes a first driving mode, and the real-time tensile stress detected by the sensor reaches the threshold stress value in the stretched state, and the row driver executes a second driving mode.
2. The display panel according to claim 1, wherein the first substrate blocks and the second substrate blocks are disposed in a staggered manner, and wherein the second substrate blocks are disposed corresponding to a gap between two adjacent first substrate blocks.
3. The display panel according to claim 1, wherein the interconnect structure is a resilient interconnect structure.
4. A display panel as claimed in claim 3 characterized in that the resilient interconnection structure is preformed to be curved.
5. The display panel according to claim 4, wherein the display panel has an initial state in which the display panel is not under tension and a stretched state in which the display panel is under tension and stretched to a state in which the second substrate block is flush with the first substrate block,
in the initial state, the elastic interconnection structure is bent to laminate the first substrate layer and the second substrate layer,
in the stretched state, the first and second substrate blocks transform the resilient interconnect structure into a flat shape.
6. The display panel of claim 4, wherein the elastic interconnect structure is preformed in at least one of an S-bend shape, an M-bend shape, and a U-bend shape.
7. The display panel according to claim 1, wherein the interconnect structure comprises an elastic substrate and an electrical connection line disposed on the elastic substrate, and the electrical connection line is made of a liquid metal material or a nano-silver material.
8. The display panel of claim 1, wherein the display panel has an initial state without tension and a stretched state in which the display panel is stretched to a state where the second substrate block is flush with the first substrate block,
in the initial state, the second light emitting device is turned off,
in the stretched state, the second light emitting device operates.
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| CN110504294B (en) * | 2019-08-30 | 2021-10-22 | 京东方科技集团股份有限公司 | Display device, stretchable display panel and manufacturing method thereof |
| CN113450653B (en) | 2021-06-30 | 2023-03-24 | 武汉天马微电子有限公司 | Stretchable display panel, control method thereof and display device |
| CN114613272B (en) * | 2022-03-23 | 2024-04-12 | 武汉华星光电半导体显示技术有限公司 | Display device manufacturing method, display device and mobile terminal |
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| KR101810050B1 (en) * | 2016-08-11 | 2017-12-19 | 삼성디스플레이 주식회사 | Stretchable display apparatus and method of manufacturing stretchable display apparatus |
| CN108389884B (en) * | 2018-03-07 | 2020-11-20 | 京东方科技集团股份有限公司 | Flexible array substrate, preparation method thereof and flexible display panel |
| CN108649054B (en) * | 2018-05-08 | 2020-12-01 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
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| CN101171621A (en) * | 2006-01-06 | 2008-04-30 | 夏普株式会社 | Mobile terminal device, display method, display program, and recording medium |
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