LCD screen function detection device
By dividing the SEG line and COM line of the LCD screen into multiple lines and using the power supply for power supply detection, the complex and cost-effective detection in the prior art is solved, and a simple and low-cost detection effect is achieved.
Patent Information
- Application Number
- CN202420649100.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the prior art, the detection LCD screen display function requires the addition of display driver IC and detection tool, which leads to complex and high cost.
By dividing the SEG line and the COM line into multiple lines, and energizing these lines using power-on parts, the display of each line is observed to determine whether there is corrosion or disconnection.
Simplifies the inspection process, reduces inspection costs, and makes the inspection results more intuitive, avoiding the need to add additional hardware.
Smart Images
Figure CN222749213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screens, in particular to a device for detecting functions of an LCD screen. Background Art
[0002] The LCD screen is composed of two pieces of glass, the upper and lower pieces, forming a liquid crystal box. The liquid crystal box is used to inject liquid crystal. Since there is no driver IC on the LCD screen, there are only COM and SEG that control the flipping of the liquid crystal. COM is the horizontal electrode of the LCD screen, and SEG is the vertical electrode. A potential difference is formed between COM and SEG, forming an electric field. The liquid crystal is affected by the electric field and deflected. Under the action of the polarizer, the LCD screen can display.
[0003] In the related art, the display function of the LCD screen is usually tested by adding a display driver IC to the periphery, and connecting the COM and SEG output by the driver IC to the COM and SEG of the LCD screen, and then using the detection tool corresponding to the display driver IC to observe whether the COM and SEG of the LCD screen are abnormal. However, this method is relatively complicated, and adding additional display driver ICs and detection tools will increase costs. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an LCD screen function detection device that can simplify the detection method, reduce the detection cost, and make the detection result more intuitive.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] In a first aspect, the present application provides an LCD screen function detection device, comprising: a power-on component; a first glass substrate, on which a plurality of first SEG lines and a plurality of second SEG lines are arranged, one second SEG line is arranged between every two adjacent first SEG lines, each of the first SEG lines is electrically connected to the power-on component, and each of the second SEG lines is electrically connected to the power-on component; a second glass substrate, which is arranged on the first glass substrate, on which a plurality of first COM lines and a plurality of second COM lines are arranged on a side of the second glass substrate close to the first SEG lines, one second COM line is arranged between every two adjacent first COM lines, each of the first COM lines is electrically connected to the power-on component, and each of the second COM lines is electrically connected to the power-on component.
[0007] The power supply member includes a first ITO pin, the first SEG line and the second SEG line are electrically connected to the first ITO pin respectively, and the first ITO pin is disposed on the first glass substrate.
[0008] The power supply member includes a second ITO pin, the first COM line and the second COM line are electrically connected to the second ITO pin respectively, and the second ITO pin is disposed on the first glass substrate.
[0009] The current-carrying member further includes a conductive end, and the conductive end is electrically connected to the first ITO pin and the second ITO pin respectively.
[0010] A liquid crystal cell is formed between the first glass substrate and the second glass substrate.
[0011] The liquid crystal box is provided with a liquid filling port.
[0012] It also includes a position mark, which is arranged on the first glass substrate.
[0013] It also includes a first polarizer, which is disposed on the first glass substrate.
[0014] The invention also includes a second polarizer, wherein the second polarizer is arranged on the second glass substrate.
[0015] The first polarizer and the second polarizer are parallel to each other.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The present application divides the SEG line into the first SEG line and the second SEG line, and the COM line into the first COM line and the second COM line, and then uses the power supply to respectively power the first SEG line and the second SEG line and the first COM line and the second COM line, so as to observe the display of each first SEG line, the second SEG line, the first COM line and the second COM line, so as to judge whether there is corrosion or disconnection. The above method is simple to operate, and only needs to power the first SEG line, the second SEG line, the first COM line and the second COM line, without adding display driver IC and detection tools, the cost is low, and the detection result is very intuitive. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0019] Figure 1 This is a schematic diagram of the structure of an LCD screen function detection device in one embodiment of the utility model;
[0020] Figure 2 It is a structural schematic diagram of another implementation of the LCD screen function detection device in one embodiment of the utility model;
[0021] Figure 3This is a schematic structural diagram of a first SEG line in an embodiment of the utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the second SEG line in one embodiment of the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of a first COM line in an embodiment of the utility model;
[0024] Figure 6 Schematic diagram of the structure of the second COM line in one embodiment of the present invention. DETAILED DESCRIPTION
[0025] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0026] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0027] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] In the related art, the display function of the LCD screen is usually tested by adding a display driver IC to the periphery, and connecting the COM and SEG output by the driver IC to the COM and SEG of the LCD screen, and then using the detection tool corresponding to the display driver IC to observe whether the COM and SEG of the LCD screen are abnormal. However, this method is relatively complicated, and adding additional display driver ICs and detection tools will increase costs.
[0029] In response to the above problems, an embodiment of the present application provides an LCD screen function detection device, which can simplify the detection method, reduce the detection cost, and make the detection result more intuitive.
[0030] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0031] See also Figure 1 and Figure 2 A device for detecting LCD screen function comprises: a power supply member 100, a first glass substrate 200 and a second glass substrate 300, wherein a plurality of first SEG lines 210 and a plurality of second SEG lines 220 are arranged on the first glass substrate 200, a second SEG line 220 is arranged between every two adjacent first SEG lines 210, each first SEG line 210 is electrically connected to the power supply member 100, and each second SEG line 220 is electrically connected to the power supply member 100; the second glass substrate 300 is arranged on the first glass substrate 200, a plurality of first COM lines 310 and a plurality of second COM lines 320 are arranged on a side of the second glass substrate 300 close to the first SEG lines 210, a second COM line 320 is arranged between every two adjacent first COM lines 310, each first COM line 310 is electrically connected to the power supply member 100, and each second COM line 320 is electrically connected to the power supply member 100.
[0032] It should be noted that the present application divides the SEG line into the first SEG line 210 and the second SEG line 220, and the COM line into the first COM line 310 and the second COM line 320, and then uses the power supply 100 to respectively power the first SEG line 210 and the second SEG line 220 and the first COM line 310 and the second COM line 320, so as to observe the display of each first SEG line 210, the second SEG line 220, the first COM line 310 and the second COM line 320, so as to determine whether there is corrosion or disconnection. The above method is simple to operate, and only needs to power the first SEG line 210, the second SEG line 220, the first COM line 310 and the second COM line 320, without adding a display driver IC and a detection tool, the cost is low, and the detection result is very intuitive.
[0033] See also Figures 3 to 6Specifically, the power supply member 100 includes a first ITO pin 110, a first SEG line 210 and a second SEG line 220 are electrically connected to the first ITO pin 110, and the first ITO pin 110 is disposed on the first glass substrate 200. Specifically, the power supply member 100 includes a second ITO pin 120, a first COM line 310 and a second COM line 320 are electrically connected to the second ITO pin 120, and the second ITO pin 120 is disposed on the first glass substrate 200. Specifically, the power supply member 100 also includes a conductive terminal 130, and the conductive terminal 130 is electrically connected to the first ITO pin 110 and the second ITO pin 120, respectively.
[0034] It should be noted that the first SEG line 210 is an odd-numbered SEG line, the second SEG line 220 is an even-numbered SEG line, the first COM line 310 is an odd-numbered COM line, and the second COM line 320 is an even-numbered COM line. During the detection process, the first SEG lines 210 are first connected in series, and the conductive end 130 provides a VOP voltage to the first SEG line 210, the first COM line 310, and the second COM line 320, while the second SEG line 220 is not powered. At this time, only the first SEG line 210 is displayed, and the second SEG line 220 is not displayed. However, if the first SEG line 210 is not displayed or the second SEG line 220 is displayed, it means that the LCD screen function is abnormal. Similarly, the second SEG line 220 is connected in series, and the conductive end 130 provides a VOP voltage to the second SEG line 220 and the first COM line 310 and the second COM line 320, while the first SEG line 210 is not powered. At this time, only the second SEG line 220 is displayed, while the first SEG line 210 is not displayed. However, if the second SEG line 220 is not displayed or the first SEG line 210 is displayed, it means that the LCD screen function is abnormal. Further, similarly, the first COM line 310 is connected in series, and the conductive end 130 provides a VOP voltage to the first COM line 310, the first SEG line 210 and the second SEG line 220, while the second COM line 320 is not powered. At this time, only the first COM line 310 is displayed, and the second COM line 320 is not displayed. However, if the first COM line 310 is not displayed or the second COM line 320 is displayed, it means that the LCD screen function is abnormal; further, the second COM line 320 is connected in series, and the conductive end 130 provides a VOP voltage to the second COM line 320, the first SEG line 210 and the second SEG line 220, while the first COM line 310 is not powered. At this time, only the second COM line 320 is displayed, and the first COM line 310 is not displayed. However, if the second COM line 320 or the first COM line 310 is displayed, it means that the LCD screen function is abnormal. The above is the detection method.
[0035] It should also be noted that the VOP voltages of the SEG and COM lines need to be inverted, such as Figures 3 to 6 The driving waveform is shown in Figure 2.
[0036] See also Figure 1 and Figure 2 In one embodiment, a liquid crystal cell is formed between the first glass substrate 200 and the second glass substrate 300. Specifically, a liquid filling port is provided on the liquid crystal cell.
[0037] It should be noted that the liquid filling port is used to fill liquid crystal into the liquid crystal box.
[0038] See also Figure 1 In one embodiment, it further includes a position mark 400, which is disposed on the first glass substrate 200. It should be noted that the position mark 400 is used to locate the binding position.
[0039] See also Figure 2 In one embodiment, the optical fiber further includes a first polarizer 500, which is disposed on the first glass substrate 200. Specifically, the optical fiber further includes a second polarizer 600, which is disposed on the second glass substrate 300. Specifically, the first polarizer 500 and the second polarizer 600 are parallel to each other.
[0040] It should be noted that the first polarizer 500 and the second polarizer 600 play a role in polarizing light.
[0041] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.
[0042] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. An LCD screen function detection device, characterized in that: include: Power supply parts; A first glass substrate, wherein a plurality of first SEG lines and a plurality of second SEG lines are disposed on the first glass substrate, a second SEG line is disposed between every two adjacent first SEG lines, each of the first SEG lines is electrically connected to the energizing member, and each of the second SEG lines is electrically connected to the energizing member; A second glass substrate, wherein the second glass substrate is arranged on the first glass substrate, a plurality of first COM lines and a plurality of second COM lines are arranged on a side of the second glass substrate close to the first SEG line, a second COM line is arranged between every two adjacent first COM lines, each of the first COM lines is electrically connected to the power-carrying member, and each of the second COM lines is electrically connected to the power-carrying member.
2. The LCD screen function detection device according to claim 1, characterized in that: The power supply member includes a first ITO pin, the first SEG line and the second SEG line are electrically connected to the first ITO pin respectively, and the first ITO pin is disposed on the first glass substrate.
3. The LCD screen function detection device according to claim 2, characterized in that: The power supply member includes a second ITO pin, the first COM line and the second COM line are electrically connected to the second ITO pin respectively, and the second ITO pin is disposed on the first glass substrate.
4. The LCD screen function detection device according to claim 3, characterized in that: The current-carrying member further includes a conductive end, and the conductive end is electrically connected to the first ITO pin and the second ITO pin respectively.
5. The LCD screen function detection device according to claim 1, characterized in that: A liquid crystal cell is formed between the first glass substrate and the second glass substrate.
6. The LCD screen function detection device according to claim 5, characterized in that: The liquid crystal box is provided with a liquid filling port.
7. The LCD screen function detection device according to claim 1, characterized in that: It also includes a position mark, which is arranged on the first glass substrate.
8. The LCD screen function detection device according to claim 1, characterized in that: It also includes a first polarizer, which is disposed on the first glass substrate.
9. The LCD screen function detection device according to claim 8, characterized in that: The invention also includes a second polarizer, wherein the second polarizer is arranged on the second glass substrate.
10. The LCD screen function detection device according to claim 9, characterized in that: The first polarizer and the second polarizer are parallel to each other.