CN219891525U - Display panel and terminal - Google Patents
Display panel and terminal Download PDFInfo
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- CN219891525U CN219891525U CN202321684265.9U CN202321684265U CN219891525U CN 219891525 U CN219891525 U CN 219891525U CN 202321684265 U CN202321684265 U CN 202321684265U CN 219891525 U CN219891525 U CN 219891525U
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- electronic paper
- liquid crystal
- display panel
- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 71
- 238000002955 isolation Methods 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims description 19
- 238000002834 transmittance Methods 0.000 claims description 17
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 239000003094 microcapsule Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005264 High molar mass liquid crystal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
Disclosed are a display panel and a terminal, the display panel including: the liquid crystal display module works in a first mode; the isolation module is positioned above the liquid crystal display module and comprises a light-transmitting state and a fog state; the electronic paper module is positioned above the isolation module and works in a second mode, wherein the liquid crystal display module and the electronic paper module respectively work independently in different modes; when the liquid crystal display module works, the isolation module and the electronic paper module are in a light transmission state; when the electronic paper module works, the isolation module is in a fog state. The display panel and the terminal provided by the utility model can realize conventional display and electronic paper display, and have more diversified functions.
Description
Technical Field
The present utility model relates to the field of display technologies, and in particular, to a display panel with dual screens and a terminal.
Background
The liquid crystal display device (liquid crystal display, LCD) has advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing cost, and is dominant in the field of flat panel display. With the rapid development of electronic products toward light, thin, and small-sized, various portable electronic devices such as smartphones, tablet computers, and the like mostly use a liquid crystal display device as a display terminal.
Electronic paper, also called digital paper, is an ultra-thin and ultra-light display panel. An important constituent of electronic paper is "electronic ink", which is composed of millions of tiny microcapsules, approximately equivalent in diameter to human hair. Each microcapsule contains positively charged white particles and negatively charged black particles suspended in a clear liquid. When the positive or negative electric field is turned on, the corresponding particles move to the top of the microcapsules, and the user can see a white or black image on the surface.
The electronic paper has the advantages of paper (such as almost the same visual sense as paper, etc.), can continuously convert and refresh display contents like the traditional LCD, saves much electricity compared with the traditional LCD, and has been widely applied to electronic products such as electronic book readers. And is more eye-protecting because it is a reflective display. Especially can still clearly show under the highlight, let the user read more comfortable: the flexible electronic paper can be curled, so that the occupied area is reduced, and the flexible electronic paper is convenient to carry. But it is also less than conventional LCDs, i.e., it can exhibit insufficient color gradation and slow refresh rate, and thus is not ideal in expressing color-rich pictures and videos.
At present, most of notebook computers adopt traditional LCD, which has large power consumption and poor display effect in strong light environments such as outdoors, and the like, has single working mode and can not provide the same good use experience in various different use environments. Thus, based on the characteristics of LCD and electronic paper, how to combine the two and make them to exert their respective advantages is a problem that is currently in need of solving.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to provide a display panel and a terminal having a dual screen, which can realize conventional display and electronic paper display with more diversified functions.
According to an aspect of the present utility model, there is provided a display panel including: the liquid crystal display module works in a first mode; the isolation module is positioned above the liquid crystal display module and comprises a light-transmitting state and a fog state; the electronic paper module is positioned above the isolation module and works in a second mode, wherein the liquid crystal display module and the electronic paper module respectively work independently in different modes; when the liquid crystal display module works, the isolation module and the electronic paper module are in a light transmission state; when the electronic paper module works, the isolation module is in a fog state.
Optionally, the isolation module switches the light transmission state and the fog state according to the switch signal, and the liquid crystal display module and the electronic paper module switch the working modes according to the switch signal.
Optionally, the isolation module is a polymer dispersed liquid crystal layer.
Optionally, the electronic paper module includes: a second upper substrate and a second lower substrate, and a second liquid crystal layer between the second upper substrate and the second lower substrate.
Optionally, the light transmittance of the electronic paper module when not working is greater than a light transmittance threshold.
Optionally, the resolution of the electronic paper module is smaller than the resolution of the liquid crystal display module.
Optionally, the method further comprises: and the backlight module is positioned below the liquid crystal display module.
According to another aspect of the present utility model, there is provided a terminal including: the display panel of the preceding claim, comprising a first mode and a second mode operating independently; and the control circuit is connected with the display panel and used for controlling the working mode of the display panel, wherein the control circuit generates a switching signal, and the switching signal controls the working mode of the display panel to be switched.
Optionally, the control circuit includes: the driving module is connected with the liquid crystal display module and generates a switching signal; and the switching control module is connected with the liquid crystal display module, the isolation module and the electronic paper module and controls the working mode of the display panel according to the switching signal.
Optionally, the switching control module includes: the connecting unit is connected with the driving module; the micro control unit is connected with the connecting unit, the liquid crystal display module and the electronic paper module; the isolation driving unit is connected with the micro control unit and the isolation module; the power supply unit is connected with the connecting unit and the electronic paper module; and the bridging unit is connected with the connecting unit, the power supply unit and the electronic paper module.
According to the display panel and the terminal provided by the utility model, the liquid crystal display module and the electronic paper module are controlled to be opened and closed through the switch signals, so that a plurality of switchable working modes are realized, and the use requirements under different application environments are met. When strong light or electric quantity is insufficient, the electronic paper module is utilized, so that a user can obtain more comfortable reading feeling, and meanwhile, the power consumption is reduced; the liquid crystal display module is utilized in the environment with sufficient electric quantity and no strong light, so that the response speed, the definition and the color saturation of the displayed image can be improved, and the look and feel of a user can be greatly improved.
Furthermore, according to the display panel and the terminal provided by the utility model, the user can also perform self-switching of the liquid crystal display module and the electronic paper module according to the use state of the user, for example, under the conditions of programming and reading, the user can select to switch to the electronic paper module independently, and under the conditions of watching video and the like, the user can switch to the liquid crystal display module automatically.
Furthermore, the display panel and the terminal provided by the utility model switch the liquid crystal display module and the electronic paper module through one switch signal provided by the control circuit, so that the complexity of the display panel and the terminal is not increased, and the operation is simple.
Furthermore, the display panel and the terminal provided by the utility model further comprise the isolation module between the liquid crystal display module and the electronic paper module in the display panel, wherein the isolation module is in a light-transmitting state when the liquid crystal display module works, and is in a fog state when the electronic paper module works, so that the display effect of the liquid crystal display module is not influenced, and meanwhile, the display effect of the electronic paper module is also improved.
Drawings
The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:
fig. 1 illustrates a schematic structure of a display panel according to an embodiment of the present utility model;
fig. 2 shows a schematic structural diagram of a terminal according to an embodiment of the present utility model.
Detailed Description
The utility model will be described in more detail below with reference to the accompanying drawings. Like elements are denoted by like reference numerals throughout the various figures. For clarity, the various features of the drawings are not drawn to scale. Furthermore, some well-known portions may not be shown. The semiconductor structure obtained after several steps may be depicted in one figure for simplicity.
It will be understood that when a layer, an area, or a structure of a device is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or further layers or areas can be included between the other layer, another area, etc. And if the device is flipped, the one layer, one region, will be "under" or "under" the other layer, another region.
If, for the purposes of describing a situation directly overlying another layer, another region, the expression "directly overlying … …" or "overlying … … and adjoining" will be used herein.
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples.
Fig. 1 illustrates a schematic structure of a display panel according to an embodiment of the present utility model.
Referring to fig. 1, the display panel 100 of the present utility model includes a backlight module 110, a Liquid Crystal Display (LCD) module 120, an isolation module 130, and an electronic paper module 140 in this order. The liquid crystal display module 120 and the electronic paper module 140 respectively work in different modes, the liquid crystal display module 120 works in a first mode, and the electronic paper module 140 works in a second mode.
Specifically, the backlight module 110 is configured to provide a light source for the liquid crystal display module 120 when the liquid crystal display module 120 is in operation.
The liquid crystal display module 120 includes a first polarizer 121, a first lower substrate 122, a first liquid crystal layer 123, a first upper substrate 124, and a second polarizer 125, wherein the first liquid crystal layer 123 is located between the first lower substrate 122 and the first upper substrate 124; the first polarizer 121 is located on a side of the first lower substrate 122 away from the first liquid crystal layer 123, i.e. between the first lower substrate 122 and the backlight module 110; the second polarizer 125 is located at a side of the first upper substrate 124 away from the first liquid crystal layer 123. In this embodiment, the first polarizer 121 is POL and the second polarizer 125 is APF.
The isolation module 130 is used for reducing the mutual interference between the liquid crystal display module 120 and the electronic paper module 140, and comprises a light transmission state and a fog state. In this embodiment, the isolation module 130 is formed by, for example, using a polymer liquid crystal dispersion layer (PDLC), and the display state of the isolation module 130 is controlled by a voltage state.
The electronic paper module 140 includes a second lower substrate 141, a second liquid crystal layer 142, and a second upper substrate 143, wherein the second liquid crystal layer 142 is located between the second lower substrate 141 and the second upper substrate 143.
In this embodiment, the display panel 100 performs switching of the first mode and the second mode under control of the switching signal Switch.
Specifically, when the Switch signal Switch is in the low level state, the display panel 100 is operated in the first mode, for example, the isolation module 130 is in the light-transmitting state, the liquid crystal display module 120 performs normal image display, and the electronic paper module 140 is in the light-transmitting state; when the Switch signal Switch is at a high level, the display panel 100 is operated in a second mode, for example, the isolation module 130 is in a fog state, the liquid crystal display module 120 is turned off, and the electronic paper module 140 performs a screen display.
In this embodiment, in order to ensure that the lcd module 120 is not affected by the electronic paper module 140 when operating alone, the electronic paper module 140 may adopt a transparent display structure. Specifically, the Switch signal Switch directly or indirectly controls the light transmittance of the electronic paper module 140. For example, when the electronic paper module 140 works, the light transmittance is smaller than the light transmittance threshold, and the isolation module 130 is in a fog state, so that the electronic paper module 140 has good display effect; when the electronic paper module 140 does not work, the light transmittance is greater than the light transmittance threshold, so that the image of the liquid crystal display module 120 can be seen by the user through the isolation module 130 and the electronic paper module 140.
In this embodiment, the light transmittance threshold is, for example, one value of the light transmittance of the electronic paper module 140, and when the light transmittance of the electronic paper module 140 is greater than the light transmittance threshold, the better the light transmittance effect of the electronic paper module 140, i.e. the closer the electronic paper module 140 is to the transparent glass; when the light transmittance of the electronic paper module 140 is smaller than the light transmittance threshold, the light transmittance of the electronic paper module 140 is worse.
In this embodiment, the sizes of the liquid crystal display module 120 and the electronic paper module 140 may be kept uniform.
Further, fig. 2 shows a schematic structural diagram of the terminal of the present utility model.
Referring to fig. 2, a terminal 1000 of the present utility model includes a display panel 100 and a control circuit 200. The structure of the display panel 100 is shown in fig. 1, and the control circuit 200 includes a driving module 210 and a switching control module 220.
In this embodiment, the driving module 210 is connected to the liquid crystal display module 120 and the switching control module 220 in the display panel 100, and is used for generating a resolution signal eDP for driving the liquid crystal display module 120, and a Switch signal Switch for controlling the display panel 100 to perform state switching. In this embodiment, the resolution of the lcd module 120 is 2560rgb 1600, for example.
The switching control module 220 is connected to the isolation module 130 and the electronic paper module 140, and is used for controlling the display state of the display panel 100 according to the switch signal.
In this embodiment, the switching control module 220 includes: a storage unit 221, a connection unit 222, a micro control unit 223, an isolation driving unit 224, a power supply unit 225 and a bridging unit 226.
The connection unit 221 is used for connecting the driving module 210 and the switching control module 220, and receiving the switching signal switch and the resolution signal eDP from the driving module 210.
The micro control unit 223 is connected to the connection unit 222, and is used for controlling the coordination operation of the display panel 100 and the control circuit 200. Specifically, the micro control unit 223 controls the display states of the isolation module 130, the liquid crystal display module 120, and the electronic paper module 140 according to the Switch signal Switch, for example.
The isolation driving unit 224 is connected to the micro control unit 223 and is used for driving the isolation module 130. Specifically, the isolation driving unit 224 may implement an ac driving waveform of ±15v to implement the light transmission state of the isolation module 130, that is, the isolation module 130 is displayed as the light transmission state under the ac driving voltage; further, the isolation driving unit 224 can control the isolation module 130 to be grounded to realize the fog state of the isolation module 130, i.e. the isolation module 130 is in a light-transmitting state under the direct-current voltage or no voltage. In this embodiment, the isolation driving unit 224 includes, for example, a power supply and an operational amplifier.
The power supply unit 225 and the connection unit 222 are configured to provide power to the electronic paper module 140.
The bridge unit 226 is connected to the storage unit 221, the connection unit 222, and the power supply unit 225 to the electronic paper module 140, and is configured to convert the 2560rgb 1600 resolution into the 1280dot 800 resolution and provide the converted resolution to the electronic paper module 140.
Further, a Printed Circuit Board (PCBA) is further included between the driving unit 210 and the lcd module 120, and the PCBA includes a gate driving circuit, a source driving circuit and a timing control circuit for driving the lcd module 120 to display images. The liquid crystal printed circuit board is also connected to the micro control unit 223 of the switching control unit to receive an enable signal BL-EN, which is used to control the backlight module 110 to be turned on and off.
The electronic paper module 140 and the switching control module 220 further include a source driving circuit and a timing control circuit.
In one embodiment, the driving module 210 provides the resolution signal eDP to the liquid crystal display module 120, so that the liquid crystal display module 120 performs normal image display according to the resolution signal eDP.
Meanwhile, the driving module 210 provides the resolution signal eDP and the switching signal Switch to the switching control unit 220, and the micro control unit 223 generates the enable signal BL-EN according to the switching signal Switch to control the operation states of the backlight module 110 and the liquid crystal display module 120. Specifically, when the Switch signal Switch is in the low state, the enable signal BL-EN is in the enable state, and the lcd module 120 displays the picture normally. When the Switch signal Switch is in the high state, the enable signal BL-EN is in the disable state, and the LCD module 120 does not display a picture, thereby saving the power consumption of the LCD module 120.
In addition, the micro control unit 223 controls the isolation driving unit 224 to generate the driving signal PDLC according to the Switch signal Switch, for controlling the state of the isolation module 130. Specifically, when the Switch signal Switch is in a low level state, the driving signal PDLC is an ac waveform, the isolation module 130 is in a light-transmitting state, and the enable signal BL-EN is in an enable state, the lcd module 120 displays a frame normally, and the frame of the lcd module 120 can pass through the isolation module 130. When the Switch signal Switch is in a high state, the driving signal PDLC is grounded, the isolation module 130 is in a fog state, and the enable signal BL-EN is in a disable state, the lcd module 120 does not display a picture, and even if the lcd module 120 is displaying a picture, the lcd module cannot pass through the isolation module 130.
In addition, the micro control unit 223 also controls the display state of the electronic paper module 140 through the BIST function (built-in self test function) according to the Switch signal Switch. When the Switch signal Switch is in the low state, the electronic paper module 140 is controlled to be in the light-transmitting state, so that the image of the liquid crystal display module 120 is seen by the user through the isolation module 130 and the electronic paper module 140. When the Switch signal Switch is in the high state, the isolation module 130 is in the fog state, and the electronic paper module 140 performs normal image display.
In summary, when the Switch signal Switch is at the low level, the lcd module 120 operates in the first mode, the micro control unit 223 controls the electronic paper module 140 to output the white screen (in the light-transmitting state at this time), the isolation module 130 receives the driving signal of the ac waveform to be in the light-transmitting state, and the lcd module 120 outputs normally.
When the Switch signal is high, the electronic paper module 140 operates in the second mode, the electronic paper module 140 outputs normally according to the input signal, the isolation module 130 receives the grounded driving signal and is in a fog state, and the liquid crystal display module 120 does not operate.
According to the display panel and the terminal provided by the utility model, the liquid crystal display module and the electronic paper module are controlled to be opened and closed through the switch signals, so that a plurality of switchable working modes are realized, and the use requirements under different application environments are met. When strong light or electric quantity is insufficient, the electronic paper module is utilized, so that a user can obtain more comfortable reading feeling, and meanwhile, the power consumption is reduced; the liquid crystal display module is utilized in the environment with sufficient electric quantity and no strong light, so that the response speed, the definition and the color saturation of the displayed image can be improved, and the look and feel of a user can be greatly improved.
Furthermore, according to the display panel and the terminal provided by the utility model, the user can also perform self-switching of the liquid crystal display module and the electronic paper module according to the use state of the user, for example, under the conditions of programming and reading, the user can select to switch to the electronic paper module independently, and under the conditions of watching video and the like, the user can switch to the liquid crystal display module automatically.
Furthermore, the display panel and the terminal provided by the utility model switch the liquid crystal display module and the electronic paper module through one switch signal provided by the control circuit, so that the complexity of the display panel and the terminal is not increased, and the operation is simple.
Furthermore, the display panel and the terminal provided by the utility model further comprise the isolation module between the liquid crystal display module and the electronic paper module in the display panel, wherein the isolation module is in a light-transmitting state when the liquid crystal display module works, and is in a fog state when the electronic paper module works, so that the display effect of the liquid crystal display module is not influenced, and meanwhile, the display effect of the electronic paper module is also improved.
Embodiments in accordance with the present utility model, as described above, are not intended to be exhaustive or to limit the utility model 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 utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. A display panel, comprising:
the liquid crystal display module works in a first mode;
the isolation module is positioned above the liquid crystal display module and comprises a light-transmitting state and a fog state; and
an electronic paper module, located above the isolation module, working in a second mode,
the liquid crystal display module and the electronic paper module respectively work independently in different modes;
when the liquid crystal display module works, the isolation module and the electronic paper module are in a light transmission state;
when the electronic paper module works, the isolation module is in a fog state.
2. The display panel according to claim 1, wherein the isolation module switches between a light-transmitting state and a fog state according to a switching signal, and the liquid crystal display module and the electronic paper module switch between operation modes according to the switching signal.
3. The display panel of claim 2, wherein the spacer module is a polymer dispersed liquid crystal layer.
4. The display panel of claim 1, wherein the electronic paper module comprises: a second upper substrate and a second lower substrate, and a second liquid crystal layer between the second upper substrate and the second lower substrate.
5. The display panel of claim 4, wherein the electronic paper module has a light transmittance greater than a light transmittance threshold when not in operation.
6. The display panel of claim 5, wherein the resolution of the electronic paper module is less than the resolution of the liquid crystal display module.
7. The display panel of claim 1, further comprising:
and the backlight module is positioned below the liquid crystal display module.
8. A terminal, comprising:
the display panel of any one of claims 1-7, comprising a first mode and a second mode of operation alone; and
the control circuit is connected with the display panel and used for controlling the working mode of the display panel,
the control circuit generates a switching signal, and the switching signal controls the working mode of the display panel to be switched.
9. The terminal of claim 8, wherein the control circuit comprises:
the driving module is connected with the liquid crystal display module and generates a switching signal;
and the switching control module is connected with the liquid crystal display module, the isolation module and the electronic paper module and controls the working mode of the display panel according to the switching signal.
10. The terminal of claim 9, wherein the handover control module comprises:
the connecting unit is connected with the driving module;
the micro control unit is connected with the connecting unit, the liquid crystal display module and the electronic paper module;
the isolation driving unit is connected with the micro control unit and the isolation module;
the power supply unit is connected with the connecting unit and the electronic paper module;
and the bridging unit is connected with the connecting unit, the power supply unit and the electronic paper module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684265.9U CN219891525U (en) | 2023-06-29 | 2023-06-29 | Display panel and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684265.9U CN219891525U (en) | 2023-06-29 | 2023-06-29 | Display panel and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219891525U true CN219891525U (en) | 2023-10-24 |
Family
ID=88398077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321684265.9U Active CN219891525U (en) | 2023-06-29 | 2023-06-29 | Display panel and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219891525U (en) |
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2023
- 2023-06-29 CN CN202321684265.9U patent/CN219891525U/en active Active
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