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CN115909969A - PMOLED display device integrating segment code and dot matrix - Google Patents

PMOLED display device integrating segment code and dot matrix Download PDF

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Publication number
CN115909969A
CN115909969A CN202211622573.9A CN202211622573A CN115909969A CN 115909969 A CN115909969 A CN 115909969A CN 202211622573 A CN202211622573 A CN 202211622573A CN 115909969 A CN115909969 A CN 115909969A
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CN
China
Prior art keywords
segment code
dot matrix
pixel
driving
display device
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Pending
Application number
CN202211622573.9A
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Chinese (zh)
Inventor
吴磊
曹荣
刘宏俊
樊燕柳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Qingyue Optoelectronics Technology Co Ltd
Yiwu Qingyue Optoelectronic Technology Research Institute Co Ltd
Original Assignee
Suzhou Qingyue Optoelectronics Technology Co Ltd
Yiwu Qingyue Optoelectronic Technology Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Suzhou Qingyue Optoelectronics Technology Co Ltd, Yiwu Qingyue Optoelectronic Technology Research Institute Co Ltd filed Critical Suzhou Qingyue Optoelectronics Technology Co Ltd
Priority to CN202211622573.9A priority Critical patent/CN115909969A/en
Publication of CN115909969A publication Critical patent/CN115909969A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a PMOLED display device integrating segment codes and dot matrixes, which comprises a substrate, wherein a display area and a driving IC for controlling the display area to work are arranged on the substrate, and a segment code pixel area and a dot matrix pixel area are arranged in the display area, wherein: the COM input end corresponding to the segment code pixel area is grounded, and the SEG input end corresponding to the segment code pixel area is electrically connected with at least one SEG output end on the drive IC; and each cathode line and each anode line of the dot matrix pixel area are correspondingly connected with the driving IC. According to the method and the device, segment code display and dot matrix display can be achieved at the same time, and the user visual experience is good.

Description

PMOLED display device integrating segment codes and dot matrixes
Technical Field
The invention relates to the technical field of display equipment, in particular to a PMOLED display device integrating a segment code and a dot matrix.
Background
An OLED (Organic Light-emitting diode) display is a direct display type video display device composed of an OLED (Organic Light-emitting diode) and a corresponding electronic circuit, and is a new variety which is rapidly developed in middle and small video display devices in recent years. OLEDs can be classified into two modes, passive matrix display and active matrix display.
In a passive matrix display OLED (PMOLED for short), ITO glass and metal electrodes are parallel electrode strips, which are orthogonal to each other, and form Light Emitting Diodes (LEDs) at intersections, and the LEDs are lit up line by line to form a frame of visible image. Since the display time of each line is very short, and to achieve normal image brightness, the LED brightness of each line is high enough, for example, a 100-line device, the LED brightness of each line must be 100 times higher than the average brightness, which requires high voltage and large driving current, so PMOLED is not suitable for large-size and high-resolution panels, and especially when displaying a specific pattern, the edge appears jaggy, which affects the visual experience of the client.
In order to solve the problem, a segment code design is adopted in some PMOLED display devices, that is, a segment code liquid crystal screen, but such a segment code liquid crystal screen cannot meet the dot matrix display requirement, and if the segment code display and the dot matrix display are simultaneously performed on one screen body, two solutions exist at present:
firstly, the segment code display area and the dot matrix display area are respectively and independently arranged, and a drive IC is required to be respectively arranged aiming at each display area, so that the cost is high;
another solution is to adjust the timing, for example, the invention patent with application number "200610117708.0" and title "an organic light emitting display and its driving method" discloses the following technical solution in 2008, month 4 and 30, the organic light emitting display has a graphic area and a dot matrix area, the driving method includes the following steps: first, according to the brightness requirement of the graphic area, the scan line time of the graphic area is adjusted, and then the driving current amount of each graphic pixel in the graphic area is adjusted to adjust the display brightness of each graphic pixel in the graphic area, wherein the scan line time of the graphic area may be different from the scan line time of the dot matrix area. The scheme has difficulty in controlling the brightness of the illustrated area by means of time sequence control, because the current intensity provided by a single electrode is constant, the normal and stable operation of the illustrated area cannot be guaranteed, and the scheme is easily interfered by external signals.
Therefore, how to realize both segment code display and dot matrix display on one PMOLED display screen body and simplify the control assembly is a technical problem expected to be solved by the application.
Disclosure of Invention
The invention aims to provide a PMOLED display device integrating a segment code and a dot matrix, which can simultaneously realize segment code display and dot matrix display, and has the advantages of good visual experience of users, convenience in control and low cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a PMOLED display device integrating a segment code and a dot matrix, which comprises a substrate, wherein a display area and a drive IC (integrated circuit) for controlling the display area to work are arranged on the substrate, and a segment code pixel area and a dot matrix pixel area are arranged in the display area, wherein:
the COM input end corresponding to the segment code pixel area is grounded, and the SEG input end corresponding to the segment code pixel area is electrically connected with at least one SEG output end on the drive IC;
and each cathode line and each anode line of the dot matrix pixel area are correspondingly connected with the driving IC.
For the above technical solution, the applicant has further optimization measures.
Optionally, the segment code pixel area includes one or more segment code pixels in a specific shape, each segment code pixel has an independent COM input terminal and an independent SEG input terminal,
the COM input end of each segment code pixel is connected with a GND end on the driving IC, or the COM input end of each segment code pixel is connected with a GND end on an FPC, and the FPC is used for connecting the driving IC and a system driving board.
Further, the SEG input end of each segment code pixel is simultaneously connected with a plurality of SEG output ends on the driving IC.
Furthermore, the driving IC controls the on/off and output current of the plurality of SEG output terminals thereon, so as to adjust the on/off and brightness of the corresponding segment code pixels.
Optionally, the driver IC employs a driver chip supporting gray scale modulation.
Optionally, the dot matrix pixel region includes a plurality of OLED pixels regularly arranged in a matrix, the dot matrix pixel region is provided with a plurality of cathode lines and a plurality of anode lines,
the cathode lines form cathodes of the OLED pixel points, and the anode lines form anodes of the OLED pixel points;
the end part of each cathode wire is electrically connected with one COM output end of the driving IC, and the end part of each anode wire is electrically connected with one SEG output end of the driving IC.
Further, a plurality of negative pole lines are arranged in a row, a plurality of positive pole lines are arranged in a row, and a plurality of negative pole lines and a plurality of positive pole lines form a matrix-shaped structure.
Furthermore, each OLED pixel point is arranged at the intersection point of the cathode line and the anode line.
Optionally, the cathode line is made of ITO or a conductive metal material.
Optionally, the anode line is made of ITO or a conductive metal material.
Compared with the prior art, the invention has the advantages that:
the PMOLED display device of this application has realized collecting segment code and dot matrix in an organic whole on a display screen body, can enough realize the segment code and show, also can carry out the demonstration of dot matrix, has solved the problem of graphical display edge sawtooth ization, and visual experience feels better. Moreover, the segment code display can be directly driven and controlled by the traditional dot matrix driving IC without adding an independent segment code driving IC, and unnecessary cost investment is not increased.
In addition, the PMOLED display device can adopt a driving chip supporting a gray scale function, and realizes the brightness control of the segment code pixels by combining the SEG quantity and the current magnitude externally connected to the segment code pixel area, so that the control is convenient.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural diagram of a segment code and dot matrix integrated PMOLED display device according to an embodiment of the present invention.
The reference numerals are explained below:
1. a substrate;
2. a segment code pixel area 21, a first segment code pixel 22, a second segment code pixel 23, a COM input end 24 and an SEG input end;
3. a dot matrix pixel area 31, OLED pixel points 32, anode lines 33 and cathode lines;
4. and a driver IC.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
First, the basic structure of the following OLED is described, which is generally composed of a substrate, an anode, a conductive layer, an emission layer, and a cathode, wherein:
the substrate is generally made of transparent plastic, glass, metal foil, etc. to support the whole OLED;
the anode is formed on the surface of the substrate and is transparent, and the anode eliminates electrons and increases 'holes' when current flows through the device;
a conductive layer, typically made of organic plastic molecules that transport "holes" from the anode, which can use polyaniline as the conductive polymer of the OLED;
an emission layer, also called an organic light-emitting layer, disposed between the conductive layer and the cathode, the layer being composed of organic plastic molecules, different from the conductive layer, which transport electrons from the cathode, the light-emitting process being carried out in this layer, polyfluorene being used as the polymer of the emission layer;
and a cathode, which is arranged outside the electron transport layer, may be transparent or opaque, depending on the type of OLED, and injects electrons into the circuit and towards the emissive layer when a current flows in the device.
The specific luminescence process is as follows:
a battery or power supply of an OLED display device applies a voltage across the OLED, and a current (current here refers to the flow of electrons) flows from the cathode to the anode, and passes through the organic light emitting layer, the cathode outputs electrons to the light emitting layer, and the anode absorbs electrons transferred from the conductive layer, and holes are formed in the conductive layer.
At the interface of the emitting layer and the conductive layer, electrons are combined with holes, and when the electrons meet the holes, the holes are filled, and when the process occurs, the electrons release energy in the form of photons, that is, the emitting layer emits light, and then the OLED emits light.
The color of the light depends on the type of organic molecules of the emissive layer, and manufacturers place several organic thin films on the same OLED, which makes a color display possible, while the brightness or intensity of the light depends on the magnitude of the applied current, the higher the brightness of the light.
The present embodiment describes a PMOLED display device integrating segment code and dot matrix, as shown in fig. 1, including a substrate 1, a display area and a driving IC4 for controlling the display area to operate are disposed on the substrate 1, and a segment code pixel area 2 and a dot matrix pixel area 3 are disposed in the display area, wherein:
the COM input end 23 corresponding to the segment code pixel area 2 is grounded, and the SEG input end 24 corresponding to the segment code pixel area 2 is electrically connected with at least one SEG output end on the drive IC 4;
each cathode line 33 and each anode line 32 of the dot matrix pixel region 3 are correspondingly connected to the driving IC 4.
COM and SEG are two sets of signals in the display driver. COM may be said to be a "common terminal" providing stable power supply, while SEG is said to be a "segment" (segment), i.e., a "scan terminal", by combination of COM and SEG, different display segments are lit up to form text or graphics.
In this embodiment, the segment code pixel area 2 includes two triangular segment code pixels, that is, a first segment code pixel 21 and a second segment code pixel 22 in fig. 1, each segment code pixel has an independent COM input end 23 and an independent SEG input end 24, and the COM input end 23 of each segment code pixel is connected to the GND terminal of the driving IC 4. It should be noted here that it is sufficient to ensure that the COM input terminal 23 of each segment code pixel is grounded, and therefore, the COM input terminal 23 of each segment code pixel may also be connected to the GND terminal on the FPC used for connecting the driving IC4 with the system driving board. Even, the COM input end is directly connected to other grounding ends, and grounding is guaranteed.
That is to say, each segment code pixel is different from the structure of the graph formed by a plurality of pixel points, and is a segment code structure designed integrally. For example, in the triangular segment code pixel of the present embodiment, the anode, the conductive layer, the emitting layer and the cathode are all designed to be a required triangular sheet structure, one side of the COM input end 23 is electrically connected to the cathode of the segment code pixel, and the other side of the COM input end 23 is externally connected to the GND terminal on the driving IC 4; one side of the SEG input end 24 is electrically connected with the anode of the segment code pixel, and the other side of the SEG input end 24 is externally connected with the SEG output end on the driving IC 4.
In a further embodiment the SEG inputs 24 of each segment code pixel are connected to a plurality of SEG outputs on the driver IC4 simultaneously. As shown in fig. 1, the SEG input terminal 24 of the first segment-code pixel 21 is simultaneously connected to five SEG output terminals of SEGs 0 to SEG4 of the drive IC4, and the SEG input terminal 24 of the second segment-code pixel 22 is simultaneously connected to six SEG output terminals of SEGs 5 to SEG10 of the drive IC 4. Generally speaking, the maximum current that each SEG output terminal of the driver IC4 can provide is 500 μ a, and the required working current for the whole segment code pixel is usually much larger than the current of the OLED pixel 31, so that the normal operation of the segment code pixel can be ensured by setting a plurality of SEG output terminals to be connected to the structural form of the anode of the segment code pixel at the same time.
In a further embodiment, the driving IC4 controls on/off of the plurality of SEG output terminals connected to the segment code pixels and magnitude of the output current, so as to implement start/stop of operation and adjustment of brightness of the corresponding segment code pixels.
In an embodiment, the driver IC4 adopts a driver chip supporting gray scale modulation, adopts a driver chip supporting gray scale function, and combines the adjustment of the number of SEGs externally connected to the segment code pixel area 2 and the current magnitude to realize the brightness control of the segment code pixel, and the control is convenient. The gray scale is to divide the brightness variation between the brightest and darkest into several parts so as to control the brightness of the screen corresponding to the input signal. Each digital image is composed of a plurality of dots, which are also called pixels (pixels), each pixel usually can present a plurality of different colors, the pixel is composed of three sub-pixels of red, green and blue (RGB), each pixel is composed of red, green and blue with different brightness levels, and finally different colors are formed. That is, the color change of each dot on the screen is actually caused by the gray scale change of the three RGB sub-pixels constituting the dot.
The light source behind each sub-pixel can display different brightness levels, and the gray scale represents the gradation level with different brightness from the darkest to the brightest, and the more intermediate gradation levels, the more exquisite the picture effect can be presented. For example, 8bit panel can represent 2 to the power of 8, which is equal to 256 luminance levels, which is called 256 gray levels. The driving chip supporting gray scale modulation has many types that can be selected, for example, the driving chip can be SSD1363, SSD1320, CH1128, etc.
In one embodiment, the dot matrix pixel area 3 includes a plurality of OLED pixels 31 regularly arranged in a matrix, a plurality of cathode lines 33 and a plurality of anode lines 32 are disposed in the dot matrix pixel area 3,
the cathode line 33 constitutes the cathode of the OLED pixel 31, and the anode line 32 constitutes the anode of the OLED pixel 31;
the end of each cathode line 33 is electrically connected to a COM output terminal at the driver IC4, and the end of each anode line 32 is electrically connected to an SEG output terminal at the driver IC 4.
As shown in fig. 1, the plurality of cathode lines 33 are arranged in rows, the plurality of anode lines 32 are arranged in rows, the plurality of cathode lines 33 and the plurality of anode lines 32 form a matrix structure, and each OLED pixel 31 is disposed at an intersection of the cathode lines 33 and the anode lines 32. Each cathode line 33 is connected to one of the COM outputs from COM0 to COMN on the driving IC4, and each anode line 32 is connected to one of the SEG outputs from SEG11 to SEGN on the driving IC 4.
That is, the cathode lines 33 and the anode lines 32 are parallel electrode strips, which are orthogonal to each other, and a Light Emitting Diode (LED) is formed by integrating a conductive layer and an emitting layer between the cathode and the anode at the intersection, the driving IC4 keeps supplying power to the cathode lines 33 stably through the COM output terminal, and sends out different control driving waveforms through the SEG output terminal to complete scanning of each row of anode lines 32 to form required characters or figures.
Further, the cathode lines 33 may be made of ITO or a conductive metal material, and also, optionally, the anode lines 32 are made of ITO or a conductive metal material.
To sum up, the PMOLED display device of this application has realized collecting segment code and dot matrix in an organic whole on a display screen body, can enough realize the segment code and show, also can carry out the demonstration of dot matrix, has solved the problem of graphical display edge sawtooth, and visual experience feels better. Moreover, the segment code display can be directly driven and controlled by the traditional dot matrix driving IC4, and an independent segment code driving IC4 is not required to be added, so that unnecessary cost investment is not increased.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a collect integrative PMOLED display device of segment code and dot matrix, includes base plate (1), is provided with the drive IC (4) of display area and control display area work on base plate (1), its characterized in that is provided with segment code pixel area (2) and dot matrix pixel area (3) in the display area, wherein:
the COM input end (23) corresponding to the segment code pixel area (2) is grounded, and the SEG input end (24) corresponding to the segment code pixel area (2) is electrically connected with at least one SEG output end on the drive IC (4);
each cathode line (33) and each anode line (32) of the dot matrix pixel area (3) are correspondingly connected with the driving IC (4).
2. A PMOLED display device integrating segment code and dot matrix according to claim 1, wherein the segment code pixel area (2) comprises one or more segment code pixels with specific shapes, each segment code pixel has independent COM input terminal (23) and SEG input terminal (24),
and the COM input end (23) of each segment code pixel is connected with a GND end on the driving IC (4), or the COM input end (23) of each segment code pixel is connected with a GND end on an FPC (flexible printed circuit), and the FPC is used for connecting the driving IC (4) and a system driving board.
3. A PMOLED display device integrating both segment code and dot matrix as claimed in claim 2 wherein the SEG inputs (24) of each segment code pixel are connected simultaneously to a plurality of SEG outputs on the driver IC (4).
4. A PMOLED display device integrating segment code and dot matrix according to claim 3, wherein said driving IC (4) controls the on/off of said plurality of SEG outputs thereon and the output current for adjusting the on/off and brightness of the corresponding segment code pixels.
5. A PMOLED display device integrating segment code and dot matrix according to claim 4, wherein the driving IC (4) adopts a driving chip supporting gray scale modulation.
6. The PMOLED display device integrating segment code and dot matrix according to claim 1, wherein the dot matrix pixel region (3) comprises a plurality of OLED pixels (31) regularly arranged in matrix, the dot matrix pixel region (3) is provided with a plurality of cathode lines (33) and a plurality of anode lines (32),
the cathode line (33) forms the cathode of the OLED pixel (31), and the anode line (32) forms the anode of the OLED pixel (31);
the end part of each cathode wire (33) is electrically connected with one COM output end of the driving IC (4), and the end part of each anode wire (32) is electrically connected with one SEG output end of the driving IC (4).
7. The PMOLED display device integrating segment codes and dot matrixes as claimed in claim 6, wherein the plurality of cathode lines (33) are arranged in columns, the plurality of anode lines (32) are arranged in rows, and the plurality of cathode lines (33) and the plurality of anode lines (32) form a matrix-shaped structure.
8. The PMOLED display device integrating segment codes and dot arrays as claimed in claim 7, wherein each OLED pixel (31) is disposed at a junction of a cathode line (33) and an anode line (32).
9. A PMOLED display device integrating a segment code and a dot matrix according to any one of claims 1 to 8, wherein the cathode lines (33) are made of ITO or conductive metal material.
10. A PMOLED display device integrating a segment code and a dot matrix according to any one of claims 1 to 8, characterized in that the anode lines (32) are made of ITO or conductive metal material.
CN202211622573.9A 2022-12-16 2022-12-16 PMOLED display device integrating segment code and dot matrix Pending CN115909969A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118155538A (en) * 2024-05-08 2024-06-07 广东志慧芯屏科技有限公司 Electronic paper flicker screen driving pattern design method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305976A (en) * 2011-08-29 2012-01-04 冀雅(廊坊)电子有限公司 Method for eliminating cross effect and liquid crystal display device
CN105739787A (en) * 2016-02-04 2016-07-06 厦门天马微电子有限公司 Array substrate and display panel
CN106875879A (en) * 2017-04-24 2017-06-20 上海天马有机发光显示技术有限公司 A kind of display panel, electronic equipment and method of testing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305976A (en) * 2011-08-29 2012-01-04 冀雅(廊坊)电子有限公司 Method for eliminating cross effect and liquid crystal display device
CN105739787A (en) * 2016-02-04 2016-07-06 厦门天马微电子有限公司 Array substrate and display panel
CN106875879A (en) * 2017-04-24 2017-06-20 上海天马有机发光显示技术有限公司 A kind of display panel, electronic equipment and method of testing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118155538A (en) * 2024-05-08 2024-06-07 广东志慧芯屏科技有限公司 Electronic paper flicker screen driving pattern design method
CN118155538B (en) * 2024-05-08 2024-07-05 广东志慧芯屏科技有限公司 Electronic paper flicker screen driving pattern design method

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