CN219320621U - Electronic module with low power consumption and refreshing power - Google Patents
Electronic module with low power consumption and refreshing power Download PDFInfo
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- CN219320621U CN219320621U CN202320343379.0U CN202320343379U CN219320621U CN 219320621 U CN219320621 U CN 219320621U CN 202320343379 U CN202320343379 U CN 202320343379U CN 219320621 U CN219320621 U CN 219320621U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model provides an electronic module with low power consumption refreshing power, which comprises a substrate, an electronic display panel and a driving IC, wherein the electronic display panel comprises a TFT substrate and the electronic film paper, a plurality of pixel units are arranged in the TFT substrate, each pixel unit comprises a pixel TFT, a pixel electrode and a first common line, each pixel unit further comprises a second common line which is arranged at intervals with the pixel TFT, the second common line is arranged above the substrate close to one side of a source electrode of the pixel TFT, the second common line is electrically connected with one side connecting end of the electronic film paper, a pixel electrode is electrically connected with the other side connecting end of the electronic film paper, and the first common line and the second common line are respectively electrically connected with one pin of the driving IC. The first common line only carries out direct current test and does not carry out alternating current test; the second common line is arranged at intervals with the pixel TFT, and parasitic capacitance can not be formed between the second common line and the pixel TFT when the second common line is subjected to alternating current test, so that the overall test power consumption is reduced.
Description
Technical Field
The utility model relates to the technical field of electronic paper display panels, in particular to an electronic module with low power consumption and refresh power.
Background
The electronic paper is used as a general display, and the specific structure of the display module comprises a glass substrate, a TFT substrate and electronic film paper which are arranged in a laminated manner. The conventional TFT substrate includes a pixel TFT, a common line disposed under a drain electrode of the pixel TFT, and a pixel electrode disposed over the drain electrode of the pixel TFT. The common line and the pixel electrode are respectively and electrically connected with the connecting ends at two sides of the electronic film paper, so that the ink capsules in the electronic film paper are driven, and further display is realized. However, for mass production reasons, the pixel TFT, the pixel electrode and the common line all have a certain resistance effect.
In the refresh test of electronic paper, display is generally driven by inputting ±15v dc voltage in a common line. In order to reduce the refresh time, the conventional refresh test is driven by inputting an ac voltage. However, due to the positional arrangement relation between the pixel TFT and the common line in the TFT substrate, parasitic capacitance is generated on the line of the pixel TFT under ac driving, and if the impedance influence on the line of the pixel TFT is added, the refresh power consumption of the whole test is greatly increased, which seriously affects the service life of the battery of the whole electronic paper.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the electronic module with low power consumption and refresh power solves the problem that in the prior art, refresh power consumption is overlarge in the alternating current test process.
The utility model solves the problems by adopting the following technical scheme: the utility model provides an electronic module of low-power consumption refresh power, includes the substrate, the interval sets up in electronic display panel and the drive IC of substrate top, electronic display panel is including setting up in the TFT base plate of substrate top and setting up the electronic membrane paper on the TFT base plate, be equipped with a plurality of pixel unit that is the matrix and arrange in the TFT base plate, every the pixel unit includes pixel TFT, sets up the pixel electrode above pixel TFT's drain electrode and sets up the first common line below pixel TFT's drain electrode, the pixel electrode is connected with pixel TFT's drain electrode electricity, every pixel unit still includes the second common line that sets up with pixel TFT interval, the second common line sets up in the substrate top that is close to pixel TFT's source side, the second common line is connected with electronic membrane paper's one side link electricity, pixel electrode is connected with electronic membrane paper's the other side link electricity, first common line and second common line are connected with a pin of drive IC respectively.
Compared with the prior art, the utility model has the advantages that: the first common line only performs a direct current refresh test and does not perform an alternating current refresh test; a second common line is additionally arranged in a traditional TFT substrate and is arranged at intervals with the pixel TFT, and the second common line can not form parasitic capacitance with the pixel TFT when an alternating current refresh test is carried out, so that more than power consumption is avoided, and the purpose of reducing overall test power consumption is achieved.
Preferably, the substrate is provided with at least one ac signal input terminal adjacent to the driving IC, the ac signal input terminal being electrically connected to the second common line.
The technical scheme has the technical effects that: through the external alternating current signal input end, the signal input of the driving IC is reduced, and the alternating current signal is convenient to input.
Preferably, the ac signal input terminal includes a first input terminal disposed at one side of the driving IC and a second input terminal disposed at the other side of the driving IC, the first input terminal is electrically connected to all the second common lines in the pixel units of the odd numbered rows in the electronic display panel, and the second input terminal is electrically connected to all the second common lines in the pixel units of the even numbered rows in the electronic display panel.
The technical scheme has the technical effects that: the alternating current signal input ends are arranged in two and are respectively arranged on two sides of the driving IC, one of the two input ends is electrically connected with the second common lines in the odd-numbered rows, and the other input end is electrically connected with the second common lines in the even-numbered rows, so that excessive cross wires are prevented from being arranged beside the driving IC, and wiring is facilitated.
Preferably, optical glue is arranged between the pixel TFT and the electronic film paper, between the pixel electrode and the electronic film paper and between the second common line and the electronic film paper, a first via hole for electrically connecting the pixel electrode and the lower connecting end of the electronic film paper is arranged in the optical glue, and a second via hole for electrically connecting the second common line and the upper connecting end of the electronic film paper is arranged in the optical glue.
The technical scheme has the technical effects that: the pixel TFT and the electronic film paper are conveniently bonded by arranging the optical cement; the pixel electrode is electrically connected with the lower-layer connecting end of the electronic membrane paper through the first via hole, so that the via hole connection is arranged nearby.
Preferably, silver paste is arranged in the second via hole.
The technical scheme has the technical effects that: the second common line has too much hierarchical structure with electronic membrane paper upper strata link, through setting up silver thick liquid in the second via hole, strengthens the intensity of whole second via hole, avoids breaking circuit.
Preferably, a first insulating layer is arranged between the drain electrode of the pixel TFT and the first common line, a second insulating layer is arranged between the drain electrode of the pixel TFT and the pixel electrode, and a third via hole for electrically connecting the pixel electrode and the drain electrode of the pixel TFT is arranged in the second insulating layer.
The technical scheme has the technical effects that: the first common line and the drain electrode of the pixel TFT are prevented from forming an electrical connection relationship by the first insulating layer, so that an insulating effect is achieved; the second insulating layer can shield the influence of the pixel TFT on the electronic film paper, and meanwhile, the pixel unit has higher aperture opening ratio.
Drawings
FIG. 1 is a schematic diagram of an electronic module with low refresh power according to the present utility model;
fig. 2 is a cross-sectional view of an electronic display panel of an electronic module with low power consumption and refresh power according to the present utility model.
Reference numerals illustrate: 1-a substrate; 2-an electronic display panel; 3-a driving IC;4-TFT base plate; 41-pixel TFTs; 42-pixel electrodes; 43-a first common line; 44-a second common line; 45-optical cement; 451-first vias; 452-second vias; 46-a first insulating layer; 47-a second insulating layer; 471-third vias; 5-electronic film paper; 61-a first input; 62-second input.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Example 1
As shown in fig. 1-2, the present embodiment relates to an electronic module with low power consumption and refresh power, which comprises a substrate 1, an electronic display panel 2 and a driving IC3 arranged above the substrate 1 at intervals, wherein the electronic display panel 2 comprises a TFT substrate 4 arranged above the substrate 1 and an electronic film paper 5 arranged on the TFT substrate 4.
Wherein, a plurality of pixel units arranged in a matrix form are arranged in the TFT substrate 4, each pixel unit comprises a pixel TFT41, a pixel electrode 42 arranged above the drain electrode of the pixel TFT41, and a first common line 43 arranged below the drain electrode of the pixel TFT41, and the pixel electrode 42 is electrically connected with the drain electrode of the pixel TFT 41.
In the present embodiment, each pixel unit further includes a second common line 44 disposed at a distance from the pixel TFT41, the second common line 44 being disposed above the substrate 1 near the source side of the pixel TFT41, the second common line 44 being electrically connected to one side connection terminal of the electronic membrane 5, the pixel electrode 42 being electrically connected to the other side connection terminal of the electronic membrane 5, the first common line 43 and the second common line 44 being electrically connected to one pin of the driving IC3, respectively.
The first common line 43 performs only the dc refresh test, and does not perform the ac refresh test; the second common line 44 is additionally arranged in the conventional TFT substrate 4, the second common line 44 is arranged at intervals with the pixel TFT41, and the second common line 44 does not form parasitic capacitance with the pixel TFT41 when the alternating current refresh test is carried out, so that more than power consumption is avoided, and the purpose of reducing the overall test power consumption is achieved.
Wherein the substrate 1 is provided with at least one ac signal input terminal beside the drive IC3, the ac signal input terminal being electrically connected to the second common line 44.
Through the external alternating current signal input end, the signal input of the driving IC3 is reduced, and the alternating current signal is convenient to input.
In the present embodiment, the ac signal input terminals include a first input terminal 61 provided at one side of the driving IC3 and a second input terminal 62 provided at the other side of the driving IC3, the first input terminal 61 is electrically connected to all the second common lines 44 in the pixel cells of the odd numbered rows in the electronic display panel 2, and the second input terminal 62 is electrically connected to all the second common lines 44 in the pixel cells of the even numbered rows in the electronic display panel 2.
The alternating current signal input terminals are arranged in two and are respectively arranged at two sides of the driving IC3, one input terminal is electrically connected with the second common line 44 in the odd-numbered row, and the other input terminal is electrically connected with the second common line 44 in the even-numbered row, so that excessive cross wires are prevented from being generated beside the driving IC3, and wiring is facilitated.
In this embodiment, optical adhesive 45 is disposed between the pixel TFT41 and the electronic film 5, between the pixel electrode 42 and the electronic film 5, and between the second common line 44 and the electronic film 5, a first via 451 for electrically connecting the pixel electrode 42 and the lower connection end of the electronic film 5 is disposed in the optical adhesive 45, and a second via 452 for electrically connecting the second common line 44 and the upper connection end of the electronic film 5 is disposed in the optical adhesive 45.
The pixel TFT41 and the electronic film paper 5 are easily adhered by providing the optical adhesive 45; the pixel electrode 42 is electrically connected to the lower connection terminal of the electronic film paper 5 through the first via 451, so that the via connection is conveniently provided nearby.
Wherein, silver paste is disposed in the second via 452. The second common line 44 and the upper layer connection end of the electronic film paper 5 have excessive hierarchical structures, and the strength of the whole second via 452 is enhanced by arranging silver paste in the second via 452, so that disconnection is avoided.
In the present embodiment, a first insulating layer 46 is disposed between the drain electrode of the pixel TFT41 and the first common line 43, a second insulating layer 47 is disposed between the drain electrode of the pixel TFT41 and the pixel electrode 42, and a third via 471 for electrically connecting the pixel electrode 42 and the drain electrode of the pixel TFT41 is disposed in the second insulating layer 47.
The first common line 43 and the drain electrode of the pixel TFT41 are prevented from forming an electrical connection relationship by the first insulating layer 46, thereby performing an insulating function; the second insulating layer 47 is provided to shield the influence of the pixel TFT41 on the electronic film paper 5 and to allow a pixel unit to have a high aperture ratio.
Example two
The embodiment relates to a test method of an electronic module with low power consumption and refresh power, which comprises an alternating current test method, wherein the alternating current test method comprises the following steps:
s1, an alternating current signal is input to a second common line 44 through an alternating current signal input end 6, and the second common line 44 outputs a signal to a connecting end on one side of electronic membrane paper 5; the driving IC3 controls the pixel TFT41 to be conducted, the pixel TFT41 outputs signals to the pixel electrode 42, and the pixel electrode 42 outputs signals to the connecting end of the other side of the electronic membrane paper 5;
s2, judging whether each pixel unit on the electronic display panel 2 is lighted or not, if so, judging that the pixel units are qualified, if so, judging that the pixel units which cannot be lighted are unqualified, and recording the number and the corresponding positions of the pixel units which cannot be lighted.
The ac test is performed only on the second common line 44, and parasitic capacitance is not generated during the test, so that more power consumption is avoided, and the purpose of reducing the overall test power consumption is achieved.
Wherein, the positive peak value of the voltage of the alternating current signal is +15V, and the negative peak value of the voltage of the alternating current signal is-15V. The maximum voltage difference of 30V can be provided, and the driving capability of the electronic membrane paper 5 is enhanced.
In this embodiment, a method for testing an electronic module with low power consumption and refresh power further includes a direct current testing method, where the direct current testing method includes the following steps:
a1, the driving IC3 inputs a direct current signal to the first common line 43 and the second common line 44, and the second common line 44 outputs a signal to a side connection terminal of the electronic membrane paper 5; the driving IC3 controls the pixel TFT41 to be conducted, the pixel TFT41 outputs signals to the pixel electrode 42, and the pixel electrode 42 outputs signals to the connecting end of the other side of the electronic membrane paper 5;
a2, judging whether each pixel unit on the electronic display panel 2 is lighted or not, if so, judging that the pixel unit is qualified, if so, judging that the pixel unit is unqualified, and recording the number and the corresponding position of the pixel units which cannot be lighted.
The dc test can be simultaneously inputted to the first common line 43 and the second common line 44 so that the entire dc test power consumption is identical to the original power consumption, avoiding the increase of other power consumption.
Wherein, the voltage value of the direct current signal is +15V or-15V. The maximum pixel point voltage difference is provided, and the driving capability of the electronic film paper 5 is enhanced.
The beneficial effects of the utility model are as follows: the first common line 43 performs only the dc refresh test, and does not perform the ac refresh test; the second common line 44 is additionally arranged in the conventional TFT substrate 4, the second common line 44 is arranged at intervals with the pixel TFT41, and the second common line 44 does not form parasitic capacitance with the pixel TFT41 when the alternating current refresh test is carried out, so that more than power consumption is avoided, and the purpose of reducing the overall test power consumption is achieved.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (6)
1. The utility model provides an electronic module of low-power consumption refresh power, includes substrate (1), interval set up in electronic display panel (2) and drive IC (3) of substrate (1) top, electronic display panel (2) are including setting up in TFT base plate (4) of substrate (1) top and setting up electronic membrane paper (5) on TFT base plate (4), be equipped with a plurality of pixel unit that are the matrix arrangement in TFT base plate (4), every pixel unit includes pixel TFT (41), sets up pixel electrode (42) above the drain electrode of pixel TFT (41) and sets up first common line (43) below the drain electrode of pixel TFT (41), pixel electrode (42) are connected with the drain electrode electricity of pixel TFT (41), its characterized in that:
each pixel unit further comprises a second common line (44) which is arranged at intervals with the pixel TFT (41), the second common line (44) is arranged above the substrate (1) close to one side of the source electrode of the pixel TFT (41), the second common line (44) is electrically connected with one side connecting end of the electronic membrane paper (5), the pixel electrode (42) is electrically connected with the other side connecting end of the electronic membrane paper (5), and the first common line (43) and the second common line (44) are respectively electrically connected with one pin of the driving IC (3).
2. The low-power refresh power electronic module of claim 1, wherein: the substrate (1) is provided with at least one ac signal input adjacent to the drive IC (3), said ac signal input being electrically connected to a second common line (44).
3. The low-power refresh power electronic module of claim 2, wherein: the alternating current signal input end comprises a first input end (61) arranged on one side of the driving IC (3) and a second input end (62) arranged on the other side of the driving IC (3), the first input end (61) is electrically connected with all second common lines (44) in pixel units of odd rows in the electronic display panel (2), and the second input end (62) is electrically connected with all second common lines (44) in pixel units of even rows in the electronic display panel (2).
4. The low-power refresh power electronic module of claim 1, wherein: optical cement (45) are arranged between the pixel TFT (41) and the electronic membrane paper (5), between the pixel electrode (42) and the electronic membrane paper (5) and between the second common line (44) and the electronic membrane paper (5), first through holes (451) for electrically connecting the pixel electrode (42) and the lower connecting end of the electronic membrane paper (5) are formed in the optical cement (45), and second through holes (452) for electrically connecting the second common line (44) and the upper connecting end of the electronic membrane paper (5) are formed in the optical cement (45).
5. The low-power refresh power electronic module of claim 4, wherein: silver paste is arranged in the second via hole (452).
6. The low-power refresh power electronic module of claim 1, wherein: a first insulating layer (46) is arranged between the drain electrode of the pixel TFT (41) and the first common line (43), a second insulating layer (47) is arranged between the drain electrode of the pixel TFT (41) and the pixel electrode (42), and a third via hole (471) for electrically connecting the pixel electrode (42) and the drain electrode of the pixel TFT (41) is arranged in the second insulating layer (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320343379.0U CN219320621U (en) | 2023-02-27 | 2023-02-27 | Electronic module with low power consumption and refreshing power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320343379.0U CN219320621U (en) | 2023-02-27 | 2023-02-27 | Electronic module with low power consumption and refreshing power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219320621U true CN219320621U (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320343379.0U Active CN219320621U (en) | 2023-02-27 | 2023-02-27 | Electronic module with low power consumption and refreshing power |
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| Country | Link |
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| CN (1) | CN219320621U (en) |
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- 2023-02-27 CN CN202320343379.0U patent/CN219320621U/en active Active
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