CN110244823B - Display substrate and display device - Google Patents
Display substrate and display device Download PDFInfo
- Publication number
- CN110244823B CN110244823B CN201910533492.3A CN201910533492A CN110244823B CN 110244823 B CN110244823 B CN 110244823B CN 201910533492 A CN201910533492 A CN 201910533492A CN 110244823 B CN110244823 B CN 110244823B
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- sound
- unit
- substrate
- insulating layer
- display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1605—Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
Abstract
The invention provides a display substrate and a display device, belongs to the technical field of display, and can at least partially solve the problem that the conventional display substrate cannot make sound. The display substrate comprises a base, a sound production unit and a sound production driving unit, wherein the sound production unit and the sound production driving unit are arranged on the base; the display substrate further comprises a sealing structure, the sealing structure is used for sealing the sound generating unit, and a gap is reserved between the sealing structure and the sound generating unit; the display substrate further comprises an upper insulating layer covering the sealing structure, and a light emitting device is arranged on one side of the upper insulating layer, which is back to the substrate.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display substrate and a display device.
Background
The existing display substrate has a scheme that display and touch control can be integrated into a whole, and a scheme that display and fingerprint identification are integrated into a whole. However, in the prior art, there is no solution for integrating display and sound generation on a display substrate.
Disclosure of Invention
The invention at least partially solves the problem of the lack of a scheme for integrating display and sound production into a whole structure, and provides a display substrate and a display device.
The technical scheme adopted for solving the technical problem is that the display substrate comprises a substrate, a sound production unit and a sound production driving unit, wherein the sound production unit and the sound production driving unit are arranged on the substrate; the display substrate further comprises a sealing structure, the sealing structure is used for sealing the sound generating unit, and a gap is reserved between the sealing structure and the sound generating unit; the display substrate further comprises an upper insulating layer covering the sealing structure, and a light emitting device is arranged on one side of the upper insulating layer, which is back to the substrate.
Optionally, the speaker further comprises a lower insulating layer disposed on a side of the substrate facing the speaker unit, wherein the speaker unit comprises a first electrode terminal and a second electrode terminal disposed on a side of the lower insulating layer facing away from the substrate, and a diaphragm covering the first electrode terminal and the second electrode terminal; the sound emission driving unit is configured to provide a driving voltage to the first electrode terminal and the second electrode terminal.
Optionally, the cross-sectional shape of the vibrating diaphragm is wavy or trapezoidal wave-shaped.
Optionally, the sealing structure includes a horizontal portion and a supporting portion, the supporting portion is located at an edge region of the horizontal portion to support the horizontal portion, and a gap is left between the horizontal portion and the sound emitting unit.
Optionally, a through hole penetrating through the horizontal portion is further provided on the horizontal portion.
Optionally, the sealing structure is further configured to seal the sound-generating driving unit that drives the sound-generating unit.
Optionally, still including setting up the base orientation the pixel drive circuit and the cover of sound production unit one side pixel drive circuit's lower insulating layer, the sound production unit with the setting of sound production drive unit is in the insulating layer dorsad down base one side, pixel drive circuit through run through the insulating layer down with the via hole of last insulating layer with the luminescent device electricity is connected.
The technical scheme adopted for solving the technical problem of the invention is a display device which comprises the display substrate.
Optionally, a central processing unit is further included to provide sound data to the sound emission driving unit.
Optionally, the central processing unit is further configured to provide display data to the pixel driving circuit.
Drawings
Fig. 1 is a schematic structural diagram of a display panel formed by a display substrate according to a conventional embodiment;
FIG. 2 is a detailed structural diagram of a portion of the display substrate shown in FIG. 1;
FIG. 3 is a cross-sectional view of a diaphragm of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of another diaphragm of an embodiment of the present invention;
FIG. 5 is a block diagram of a display device according to an embodiment of the present invention;
wherein the reference numerals are: 11. a substrate; 12. a pixel drive circuit; 13. a lower insulating layer; 14. an upper insulating layer; 15. an organic light emitting layer; 16. a thin film encapsulation layer; 17. packaging the cover plate; r, a red light filter film; G. a green light filter film; B. a blue light filter film; 2. a sealing structure; 21. a through hole; 2a, a horizontal part; 2b, a support part; 3. a sound emitting unit; 31a, a first electrode terminal; 31b, a second electrode terminal; 32. a vibrating diaphragm 4 and a sound production driving unit; 5. a central processing unit.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
referring to fig. 1 to 4, the present embodiment provides a display substrate, including a substrate 11, a sound generating unit 3 disposed on the substrate 11, and a sound generating driving unit 4, where the sound generating driving unit 4 is configured to drive the sound generating unit 3 to generate sound; the display substrate further comprises a sealing structure 2, the sealing structure 2 is used for sealing the sound generating unit 3, and a gap is reserved between the sealing structure 2 and the sound generating unit 3; the display substrate further comprises an upper insulating layer 14 covering the sealing structure 2, and a light emitting device is arranged on a side of the upper insulating layer 14 facing away from the substrate 11.
The material of the substrate 11 is, for example, a hard glass substrate 11 or a flexible substrate 11. In the present embodiment, the sound generating unit 3 and the sound generating driving unit 4 are formed on the display substrate 11. The sound generating unit 3 may be manufactured by using an existing MEMS process, and the sound generating driving unit 4 may be manufactured by using an existing semiconductor process (for example, a CMOS process). Of course, the material of the substrate 11 is further preferably a silicon material. In this way, the sound generating unit 3 can be made of the material of the substrate 11 through an etching process, which results in a smaller product volume and higher resolution.
The light emitting device is, for example, an Organic Light Emitting Diode (OLED) or a Micro-light emitting diode (Micro-LED), etc., which generally includes a cathode, an anode, and a light emitting layer between the cathode and the anode. The light emitting device shown in fig. 1 is an organic light emitting diode, in which only the organic light emitting layer 15 is shown. In the structure shown in fig. 1, the organic light-emitting layer 15 has a full-layer structure, and fig. 1 also shows a red filter R, a green filter G, and a blue filter B. Each filter participates in forming a sub-pixel.
The sealing structure 2 is used for sealing the sound emitting unit 3. Of course, the sealing structure 2 may further seal the sound emission driving unit 4. In the current view of fig. 1, the sealing structure 2 seals the space above the sound generating unit 3 and the spaces in four directions in the horizontal direction (the sound generating unit 3 is formed on the lower insulating layer 13, and the space below the sound generating unit 3 is sealed by the lower insulating layer 13). The sealing structure 2 may be a totally enclosed structure or may have a through hole 21 (i.e., a semi-enclosed structure) as shown in fig. 4. The sealing structure 2 achieves isolation between the sound emitting unit 3 and the light emitting device thereon. Of course, one electrode (e.g., an anode) in the light emitting device needs to be formed on the upper insulating layer 14.
Thus, the purpose of integrating the sound production function in the display substrate is achieved. Meanwhile, the display substrate is simple in structure and low in manufacturing cost.
Optionally, a lower insulating layer 13 disposed on a side of the substrate 11 facing the sound generating unit 3 is further included, and the sound generating unit 3 includes a first electrode terminal 31a and a second electrode terminal 31b disposed on a side of the lower insulating layer 13 facing away from the substrate 11, and a vibrating diaphragm 32 covering the first electrode terminal 31a and the second electrode terminal 31 b; the sounding drive unit 4 is configured to supply a drive voltage to the first electrode terminal 31a and the second electrode terminal 31 b.
The sound emission driving unit 4 of the display substrate can control the vibration of the vibration diaphragm 32 by applying different voltages to the first electrode terminal 31a and the second electrode terminal 31b, respectively, and thus can emit different sounds.
Alternatively, as shown in fig. 3 and 4, the sectional shape of the vibrating membrane 32 is wavy or trapezoidal wave-like. This arrangement makes the sound quality of the sound generated from the diaphragm 32 better. Of course, the shape of the diaphragm 32 may be a flat plate as shown in fig. 2.
Alternatively, the sealing structure 2 includes a horizontal portion 2a and a support portion 2b, the support portion 2b is located at an edge area of the horizontal portion 2a to support the horizontal portion 2a, and a gap is left between the horizontal portion 2a and the sound emitting unit 3. The support portion 2b supports the horizontal portion 2a and defines a height of the horizontal portion 2a such that a certain gap is maintained between the horizontal portion 2a and the sound emitting unit 3. Thereby facilitating the sound generating unit 3 to have a certain vibration space so as to be able to generate sound.
Optionally, a through hole 21 penetrating the horizontal portion 2a is further provided on the horizontal portion 2 a. This is designed to facilitate the sound to propagate outwards through the through hole 21.
Optionally, the sealing structure 2 is also used to seal the sound emission drive unit 4 that drives the sound emission unit 3. Taking fig. 2 as an example, the range defined by the support portion 2b includes the sounding drive unit 4. Of course, the sounding drive unit 4 may be outside the sealing structure 2, and the wiring connecting between the sounding drive unit 4 and the sounding unit 3 may be between the support portion 2b and the lower insulating layer 13.
Optionally, a pixel driving circuit 12 disposed on a side of the substrate 11 facing the sound generating unit 3 and a lower insulating layer 13 covering the pixel driving circuit 12 are further included, the sound generating unit 3 and the sound generating driving unit 4 are disposed on a side of the lower insulating layer 13 facing away from the substrate 11, and the pixel driving circuit 12 is electrically connected to the light emitting device through a via hole (not shown) penetrating through the lower insulating layer 13 and the upper insulating layer 14.
That is, in this embodiment, the pixel driving circuit 12 is first fabricated by a semiconductor process, and then the sound emitting unit 3 is fabricated by a MEMS process.
Note that, the above sound emission unit 3 and the sound emission driving unit 4 may be directly formed in different regions on the substrate 11, like the pixel driving circuit 12. Taking the material of the substrate 11 as silicon as an example, the sound generating unit 3 may be fabricated in a partial region of the substrate 11 by etching or the like, and the sound generating driving unit 4 and the pixel driving circuit 12 may be fabricated in other regions of the substrate 11 by CMOS process. It is only necessary that the substrate 11 has a sufficient area to accommodate the sound emitting unit 3. However, in order to make the manufacturing process more reliable due to the difference between the semiconductor process and the MEMS process, it is preferable to first fabricate the pixel driving circuit 12, then fabricate the lower insulating layer 13, and then fabricate the sound emitting unit 3 on the lower insulating layer 13.
Example 2:
referring to fig. 1 and 5, the present embodiment provides a display device including the display substrate described above.
Specifically, the display device may be any product or component having a display function, such as an Organic Light Emitting Diode (OLED) display panel, a Micro-LED display panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.
The structure shown in fig. 1 is embodied as an oled display panel, in which a thin film encapsulation layer 16 and an encapsulation cover 17 are also shown. The thin film encapsulation layer 16 and the encapsulation cover 17 may be disposed according to the prior art, and are not described herein.
Optionally, a central processing unit 5 is included that provides sound data to the sound emission driving unit 4. That is, the central processing unit 5 supplies a signal to the sounding drive unit 4, thereby controlling what kind of sound the sounding drive unit 4 specifically makes. Of course, a data storage unit (not shown) may also be included in the particular circuit. The data storage unit stores the sound data and supplies it to the sound emission drive unit 4.
Optionally, the central processing unit 5 is further configured to provide display data to the pixel driving circuit 12. Therefore, the display device can realize display and sound production.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. A display substrate comprises a substrate, characterized in that,
the sounding device also comprises a sounding unit and a sounding driving unit which are arranged on the substrate, wherein the sounding driving unit is used for driving the sounding unit to make a sound;
the display substrate further comprises a sealing structure, the sealing structure is used for sealing the sound generating unit, and a gap is reserved between the sealing structure and the sound generating unit;
the display substrate further comprises an upper insulating layer covering the sealing structure, and a light-emitting device is arranged on one side of the upper insulating layer, which is opposite to the substrate;
the sound generating unit comprises a first electrode terminal, a second electrode terminal and a vibrating diaphragm, wherein the first electrode terminal and the second electrode terminal are arranged on one side, facing away from the substrate, of the lower insulating layer;
the sound emission driving unit is configured to provide a driving voltage to the first electrode terminal and the second electrode terminal.
2. The display substrate according to claim 1, wherein the cross-sectional shape of the vibrating membrane is wavy or trapezoidal wave.
3. The display substrate of claim 1, wherein the sealing structure comprises a horizontal portion and a supporting portion, the supporting portion is located at an edge region of the horizontal portion to support the horizontal portion, and a gap is left between the horizontal portion and the sound generating unit.
4. The display substrate according to claim 3, wherein a through hole penetrating the horizontal portion is further provided on the horizontal portion.
5. The display substrate according to claim 1, wherein the sealing structure is further configured to seal the sound-generating driving unit that drives the sound-generating unit.
6. The display substrate according to claim 1, further comprising a pixel driving circuit disposed on a side of the substrate facing the sound generating unit, and a lower insulating layer covering the pixel driving circuit, wherein the sound generating unit and the sound generating driving unit are disposed on a side of the lower insulating layer facing away from the substrate, and the pixel driving circuit is electrically connected to the light emitting device through a via hole penetrating through the lower insulating layer and the upper insulating layer.
7. A display device comprising the display substrate according to any one of claims 1 to 6.
8. The display device according to claim 7, further comprising a central processing unit providing sound data to the sound emission driving unit.
9. The display device according to claim 8, wherein the display substrate is according to claim 6, and the central processing unit is further configured to provide display data to the pixel driving circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533492.3A CN110244823B (en) | 2019-06-19 | 2019-06-19 | Display substrate and display device |
| PCT/CN2020/079937 WO2020253288A1 (en) | 2019-06-19 | 2020-03-18 | Display substrate and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533492.3A CN110244823B (en) | 2019-06-19 | 2019-06-19 | Display substrate and display device |
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| Publication Number | Publication Date |
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| CN110244823A CN110244823A (en) | 2019-09-17 |
| CN110244823B true CN110244823B (en) | 2021-09-21 |
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| CN201910533492.3A Active CN110244823B (en) | 2019-06-19 | 2019-06-19 | Display substrate and display device |
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| CN (1) | CN110244823B (en) |
| WO (1) | WO2020253288A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244823B (en) * | 2019-06-19 | 2021-09-21 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN111430412B (en) * | 2020-03-30 | 2022-11-04 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method and display panel |
| CN111627961B (en) * | 2020-05-19 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| WO2020253288A1 (en) | 2020-12-24 |
| CN110244823A (en) | 2019-09-17 |
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