CN216647770U - VA liquid crystal display device - Google Patents

VA liquid crystal display device Download PDF

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CN216647770U
CN216647770U CN202122940528.5U CN202122940528U CN216647770U CN 216647770 U CN216647770 U CN 216647770U CN 202122940528 U CN202122940528 U CN 202122940528U CN 216647770 U CN216647770 U CN 216647770U
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pins
foot
seg
com
display screen
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吴耕豪
冯国雄
林国起
杨晓东
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Jiangmen Yeebo Semiconductor Co ltd
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Jiangmen Yeebo Semiconductor Co ltd
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Abstract

The utility model provides a VA liquid crystal display device, which comprises an LCD display screen, a liquid crystal display panel and a liquid crystal display panel, wherein the LCD display screen is provided with two groups of S pins and two groups of C pins; the number of the S legs in each group is a; the number of the C pins in each group is b; the control chip is provided with SEG pins and COM pins, the number of the SEG pins is 2a, and the number of the COM pins is
Figure DDA0003373665900000011
A plurality of; the SEG pins are correspondingly connected with the S pins, the COM pins are correspondingly connected with half parts of one group of C pins, and the COM pins are also correspondingly connected with the other part of the other group of C pins, so that the resolution of the LCD screen reaches a x b. The utility model is based on an LCD displayThe method comprises the steps of displaying the resolution of a screen, searching for a proper control chip, and realizing the connection of the control chip and the LCD display screen in a mode of sharing COM pins, so that the effect of double resolution is achieved on the basis of the original duty number (namely 1/COM), and the limitation of the connection between the LCD display screen and the control chip in the existing design is solved.

Description

VA liquid crystal display device
Technical Field
The utility model relates to the technical field of liquid crystal display, in particular to a VA liquid crystal display device.
Background
Currently, most VA/MVA products are patterns and few types below 1/33duty, and the connection method of the LCD display screen and the control chip of the existing VA liquid crystal display device is to select the control chip with the corresponding number of SEG pins of a and the number of COM pins of b according to the resolution a × b of the VA liquid crystal display device, and connect the control chip with the S pin and the C pin of the LCD display screen through the SEG pins and the COM pins respectively. However, the above design has some limitations, and can only be applied to low duty and lower resolution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a VA liquid crystal display device and a wiring method thereof, which can solve the problem of connection limitation of an LCD display screen and a control chip in the existing design.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the present invention provides a VA liquid crystal display device, including:
an LCD display screen having two sets of S pins and two sets of C pins; the two groups of S pins are respectively arranged on the upper side and the lower side of the LCD screen, and the number of the S pins in each group is a; the two groups of the C pins are respectively arranged on the left side and the right side of the LCD display screen, and the number of the C pins in each group is b;
the control chip is provided with SEG pins and COM pins, the number of the SEG pins is 2a, and the number of the COM pins is
Figure BDA0003373665880000011
A plurality of;
the SEG pins are correspondingly connected with the S pins, the COM pins are correspondingly connected with half parts of one group of C pins, and the COM pins are also correspondingly connected with the other part of the other group of C pins, so that the resolution of the LCD screen reaches a x b.
Compared with the prior art, the method and the device have the advantages that the proper control chip is searched according to the resolution of the LCD display screen, the control chip is connected with the LCD display screen in a mode of sharing the COM pins, the effect of doubling the resolution is achieved on the basis of the original duty number (namely 1/COM), and the limitation of connection between the LCD display screen and the control chip in the existing design is solved.
In a preferred embodiment, the SEG pin is arranged on one side of the control chip close to the LCD display screen; the COM pin is arranged on the left side or the right side of the control chip.
In a preferred embodiment, the S-legs include two sets S0foot-Sa-1A foot;
the SEG pin comprises an SEGnfoot-SEGmFoot and SEGpfoot-SEGqFoot, the SEGnFoot-the SEGnThe number of the feet is a, the SEGpFoot-the SEGqThe number of the feet is a;
the SEGnFoot-the SEGmOne group of the foot and the LCD display screen S0foot-Sa-1The pins are connected in a one-to-one correspondence manner;
the SEGpFoot-the SEGqFoot and S of another group of the LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence.
In a preferred embodiment, the C pins comprise two groups C0foot-Cb-1A foot;
the COM foot comprises
Figure BDA0003373665880000021
The above-mentioned
Figure BDA0003373665880000022
Is in an amount of
Figure BDA0003373665880000023
A plurality of;
the above-mentioned
Figure BDA0003373665880000024
With one of said LCD screens
Figure BDA0003373665880000025
Are connected in one-to-one correspondence, the
Figure BDA0003373665880000026
And also with another group of said LCD screens
Figure BDA0003373665880000027
Figure BDA0003373665880000028
And the connection is in one-to-one correspondence.
In a preferred embodiment, the part of the connecting line of the COM pin and the C pin is positioned at the bottom of the LCD display screen.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic view of the connection of a VA liquid crystal display device;
fig. 2 is a schematic connection diagram of a VA liquid crystal display device with 128 × 32 resolution.
Description of reference numerals:
100-LCD display screen, 200-control chip.
Detailed Description
In order to better illustrate the utility model, the utility model is described in further detail below with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, nor is it to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The utility model provides a VA liquid crystal display device and a layout method thereof, which achieve the effect of double resolution on the basis of the original duty (namely 1/COM) by sharing COM pins and solve the connection limitation of an LCD display screen 100 and a control chip in the prior design.
Specifically, as shown in fig. 1, the VA liquid crystal display device includes: an LCD display screen 100 having two sets of S pins and two sets of C pins; wherein, two groups of the S pins are respectively arranged on the LCD display screen 10
0, wherein the number of the S legs in each group is a; the two groups of the C pins are respectively arranged on the left side and the right side of the LCD display screen 100, and the number of the C pins in each group is b;
a control chip 200 having SEG pins and COM pins, wherein the number of the SEG pins is 2a, and the number of the COM pins is
Figure BDA0003373665880000041
A plurality of;
the SEG pins are correspondingly connected with the S pins, the COM pins are correspondingly connected with half of one group of C pins, and the COM pins are also correspondingly connected with the other part of the other group of C pins, so that the resolution of the LCD display screen 100 reaches a x b.
Compared with the prior art, the utility model searches for a proper control chip 200 (i.e. having 2a SEG pins and 2b SEG pins) according to the resolution a x b of the LCD display screen 100
Figure BDA0003373665880000042
A control chip of each COM pin), and the connection between the control chip 200 and the LCD display screen 100 is realized by sharing the COM pins, so that the effect of doubling the resolution is achieved on the basis of the original duty (i.e. 1/COM), and the limitation of the connection between the LCD display screen 100 and the control chip of the existing design is solved.
In one embodiment, the SEG pin is disposed on a side of the control chip close to the LCD display screen 100; the COM pin is arranged on the left side or the right side of the control chip. According to the utility model, the SEG pin of the control chip 200 is arranged at one side close to the LCD display screen 100, so that the connection between the SEG pin and the S pins at the upper and lower sides of the LCD display screen 100 is facilitated; similarly, the COM pin is disposed on the left side or the right side of the control chip, so that the COM pin is conveniently connected to the C pins on the left and right sides of the LCD display screen 100.
Further, the S-foot comprises two groups of S0foot-Sa-1Foot, one group S0foot-Sa-1The number of the feet is a, and the other group S0foot-Sa-1The number of the feet is a;
the SEG pin comprises an SEGnfoot-SEGmFoot and SEGpfoot-SEGqFoot, the SEGnFoot-the SEGmThe number of the feet is a, the SEGpFoot-the SEGqThe number of the feet is a; the SEGnFoot-the SEGmS of one group of foot and the LCD screen 1000foot-Sa-1The pins are connected in a one-to-one correspondence manner; the SEGpFoot-the SEGqS of the other group of the foot and the LCD screen 1000foot-Sa-1The pins are connected in a one-to-one correspondence.
In the utility model, the SEG of the control chip positioned at the lower side of the LCD display screen is usednFoot-the SEGmThe foot and the S on the lower side of the LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence and the SEG is connectedpfoot-SEGqFoot and S on upper side of LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence manner, so that the connection of the SEG pins and the S pins is realized.
Further, the C pins comprise two groups C0foot-Cb-1Foot, one group C0foot-Cb-1The number of the feet is b, and the other group C0foot-Cb-1The number of the feet is b;
the COM foot comprises
Figure BDA0003373665880000051
The above-mentioned
Figure BDA0003373665880000052
In an amount of
Figure BDA0003373665880000053
A plurality of;
the above-mentioned
Figure BDA0003373665880000054
In one group with said LCD display screen 100
Figure BDA0003373665880000055
Are connected in one-to-one correspondence, the
Figure BDA0003373665880000056
And also with another group of said LCD display screens 100
Figure BDA0003373665880000057
Figure BDA0003373665880000061
And the connection is in one-to-one correspondence.
According to the utility model, through the mode, the control chip is positioned on the left side of the control chip
Figure BDA0003373665880000062
And the right side of the LCD display screen
Figure BDA0003373665880000063
Are connected in a one-to-one correspondence and then will
Figure BDA0003373665880000064
And the left side of the LCD display screen
Figure BDA0003373665880000065
And the COM pins and the C pins are connected in a one-to-one correspondence manner.
Preferably, the part of the connecting line of the COM pin and the C pin is located at the bottom of the LCD screen 100, and the COM pin and the C pin are connected by a bottom winding manner while avoiding the redundant wiring.
The wiring method of the VA liquid crystal display device comprises the following steps:
step 1: matching a corresponding control chip according to the resolution of the LCD display screen 100, specifically, the step 1 includes:
step 1 a: according to the resolution a x b of the LCD display screen 100, the required specification of the control chip is determined as that the number of SEG pins is 2a, and the number of COM pins is 2
Figure BDA0003373665880000066
A plurality of;
step 1 b: determined according to step 1aThe specification of the control chip (namely the number of the SEG pins is 2a, and the number of the COM pins is
Figure BDA0003373665880000067
Control chip) to find the control chip with corresponding SEG pin and corresponding COM pin, when the resolution of LCD screen is 128 x 32, the specification of the control chip to be found is 256 of SEG pin, and the COM pin is 16 of control chip RW 1095.
Step 2: the SEG pins of the control chip are connected with the S pins of the LCD display screen 100 in a connection mode that one SEG pin corresponds to one S pin; specifically, the step 2 includes:
step 2 a: the SEGnFoot-the SEGmThe S of one of the group of the foot and the LCD display screen 1000Foot-said Sa-1The pins are connected in a one-to-one correspondence manner; SEG of control chip positioned at lower side of LCD display screennFoot-the SEGmThe foot and the S on the lower side of the LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence manner;
and step 2 b: the SEGpFoot-the SEGqThe S of the other group of the foot and the LCD display screen 1000Foot-the Sa-1The pins are connected in a one-to-one correspondence. SEG of control chip positioned at lower side of LCD display screenpfoot-SEGqFoot and S on upper side of LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence manner, so that the connection of the SEG pins and the S pins is realized.
And step 3: the COM pin of the control chip is connected with the C pin of the LCD display screen 100 in a connection manner that one COM pin corresponds to two C pins. Specifically, the step 3 includes:
step 3 a: the above-mentioned
Figure BDA0003373665880000071
After being routed through the bottom of the LCD display screen 100, the other group of the LCD display screen 100
Figure BDA0003373665880000072
Connecting in a one-to-one correspondence manner; will be located in the control coreLeft side of the sheet
Figure BDA0003373665880000073
And the right side of the LCD display screen
Figure BDA0003373665880000074
Figure BDA0003373665880000075
Connecting in a one-to-one correspondence manner;
and step 3 b: the above-mentioned
Figure BDA0003373665880000076
Is passed through
Figure BDA0003373665880000077
After connection, the wires are routed again through the bottom of the LCD display screen 100 and connected with one group of the LCD display screen 100
Figure BDA0003373665880000078
And the connection is in one-to-one correspondence.
In one embodiment, for example, a VA LCD with a resolution of 128 × 32 is produced, as shown in fig. 2, the resolution of the LCD is 128 × 32, that is, the specification of the control chip to be found is 256 of the SEG pins, and the COM pin is 16 of the control chip RW1095, wherein the SEG pins of the control chip RW1095 include the SEG pins64Foot-the SEG191Foot and SEG192Foot-the SEG319The COM pin of the control chip RW1095 comprises COM0Foot-the COM15A foot; when wiring, the SEG64Foot-the SEG191Foot and S on the underside of the LCD screen0Foot-said S127Foot, the SEG192Foot and SEG319Feet and S on the upper side of the LCD screen0Foot-said S127Foot, the COM0Foot-the COM15Foot is firstly connected with C on the right side of the LCD display screen16foot-C31Pin connection, the COM0Foot-the COM15Foot is displayed by LCDBottom of screen is wound to left side and C0foot-C15The pins are connected, so that the double-resolution effect is achieved on the basis of the original duty number (namely 1/COM), and the connection limitation of the LCD display screen and the control chip in the existing design is solved.
In the description of the present invention, it is to be understood that the terms "vertical", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the utility model and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (5)

1. A VA liquid crystal display device, comprising:
an LCD display screen having two sets of S pins and two sets of C pins; the two groups of S pins are respectively arranged on the upper side and the lower side of the LCD screen, and the number of the S pins in each group is a; the two groups of the C pins are respectively arranged on the left side and the right side of the LCD display screen, and the number of the C pins in each group is b;
the control chip is provided with SEG pins and COM pins, the number of the SEG pins is 2a, and the number of the COM pins is
Figure FDA0003373665870000011
A plurality of;
the SEG pins are correspondingly connected with the S pins, the COM pins are correspondingly connected with half parts of one group of C pins, and the COM pins are also correspondingly connected with the other part of the other group of C pins, so that the resolution of the LCD screen reaches a x b.
2. The VA liquid-crystal display device of claim 1, characterized in that:
the SEG pin is arranged on one side of the control chip close to the LCD display screen;
the COM pin is arranged on the left side or the right side of the control chip.
3. The VA liquid-crystal display device of claim 1, characterized in that:
the S pin comprises two groups of S0foot-Sa-1A foot;
the SEG pin comprises an SEGnfoot-SEGmFoot and SEGpfoot-SEGqFoot, the SEGnFoot-the SEGmThe number of the feet is a, the SEGpFoot-the SEGqThe number of the feet is a;
the SEGnFoot-the SEGmOne group of the foot and the LCD screen is S0foot-Sa-1The pins are connected in a one-to-one correspondence manner;
the SEGpFoot-the SEGqFoot and S of another group of the LCD display screen0foot-Sa-1The pins are connected in a one-to-one correspondence.
4. The VA liquid-crystal display device of claim 1, characterized in that:
the C pins comprise two groups C0foot-Cb-1A foot;
the COM pin comprises a COM0Foot ∑ e
Figure FDA0003373665870000012
Foot, the COM0Foot ∑ e
Figure FDA0003373665870000013
The number of feet is
Figure FDA0003373665870000014
A plurality of; the COM0Foot ∑ e
Figure FDA0003373665870000021
C of one group of foot and LCD display screen0Foot ∑ e
Figure FDA0003373665870000022
The pins are connected in a one-to-one correspondence manner, and the COM0Foot ∑ e
Figure FDA0003373665870000023
The feet being also associated with another group of said LCD display screens
Figure FDA0003373665870000024
foot-Cb-1The pins are connected in a one-to-one correspondence.
5. The VA liquid-crystal display device of claim 1, characterized in that:
and the part of the connecting line of the COM pin and the C pin is positioned at the bottom of the LCD display screen.
CN202122940528.5U 2021-11-25 2021-11-25 VA liquid crystal display device Active CN216647770U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114023212A (en) * 2021-11-25 2022-02-08 江门亿都半导体有限公司 VA liquid crystal display device and wiring method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114023212A (en) * 2021-11-25 2022-02-08 江门亿都半导体有限公司 VA liquid crystal display device and wiring method thereof

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