阅读说明：本技术 一种分析仪器显示面板 (Display panel of analytical instrument ) 是由 陈义新 于 2020-12-01 设计创作，主要内容包括：一种分析仪器面板,设计有主显示区、上标校准数据区、和下标校准数据区,以及4个指示灯、4个触摸键和1个带灯按钮,这4个触摸键未通电时是看不到的,通电后有白色轮廓显示,触摸时4个触摸开关分别变化为4种颜色,4个触摸键通过组合方式实现了仪器的全部校准操作功能。(The utility model provides an analytical instrument panel, the design has main display area, superscript calibration data district and subscript calibration data district to and 4 pilot lamps, 4 touch keys and 1 take the lamp button, can't see when these 4 touch keys do not circular telegram, have white profile after the circular telegram to show, 4 touch switch change respectively into 4 colours during the touch, 4 touch keys have realized the whole calibration operation function of instrument through the compound mode.)

1. An instrument display panel is composed of a flat panel with partial light transmission and a touch switch arranged on the back of the panel, and is technically characterized in that the panel is made of a smooth and transparent organic material, a main display area (1), an upper mark calibration data area (11), a lower mark calibration data area (12), 4 indicator lamps, 4 touch keys and 1 button with a lamp (6) are designed on the panel, wherein the 4 touch keys are all arranged on the back of the panel and correspond to the outline positions of the light transmission keys on the panel, each key consists of a lightproof rectangular frame (13), a light transmission frosted light scattering sheet (17), white and colored LED lamps and touch IC chips which are arranged in the rectangular frame fixed on a PCB (14) and a plurality of transparent conductive films (18) adhered on the frosted light scattering sheet, the transparent conductive films of the 4 touch keys are respectively connected with the input ends of the 4 touch key IC chips, the output ends of the 4 touch key IC chips are respectively connected to the corresponding white LED lamps and the color LED lamps, the white LED lamps are turned on after the power-on of the touch key IC chips is conducted, the touch key outlines and the function characters are displayed, the white LED lamps are turned off after one of the touch IC chips is triggered, the color LED lamps in the corresponding color are turned on, and the touch key outlines and the function characters are colored.

2. The instrument display panel as claimed in claim 1, wherein 4 touch keys on the instrument panel must be pressed to hold CAL (calibration key) and then to press other keys to be effective, and the 4 touch keys realize all calibration operation functions of the instrument in a combined manner.

3. The instrument display panel according to claim 1, wherein the transparent conductive film used as the sensing electrode is adhered to the frosted diffuser (17) or directly adhered to the back surface of the panel, i.e. the printed surface, and conductive silver paste is used to improve the conductivity.

4. The instrument display panel of claim 1, wherein the panel is fabricated from a transparent black-brown or black-gray organic material, and opaque ink printing is applied to the back side of the panel to form the individual transparent characters and display regions.

5. The instrument display panel according to claim 1, characterized in that the button (6) with indicator lights is always on with medium brightness during the program run, is superimposed with high brightness flash for some function indication, and is off after the program is finished, and its button is used to switch some special functions of the instrument.

6. The instrument display panel according to claim 1, wherein the 4 touch key IC chips are packaged individually, connected to the 4 rectangular frames individually, or packaged together in a collective manner.

7. The instrument display panel as claimed in claim 1, wherein 4 rectangular frames (13) are individually formed or are integrally formed in 4 pieces, and are combined with a circuit board on which the LED lamp and the IC chip are mounted.

8. The instrument display panel of claim 1, wherein 4 indicator lights are also bonded to the plastic bezel using a frosted diffuser and then mounted in corresponding positions on the back of the panel.

Technical Field

The invention relates to a display panel of an analyzer, in particular to a display panel of a silicate analyzer in water and a design and manufacturing method of a touch keyboard which is tightly combined with the display panel and can change color and emit light.

Background

Most water quality component analysis instruments are designed with a liquid crystal display and a large keyboard on a panel, almost all the keyboards are designed as a plurality of touch switches covered with a film on the surface, and each touch switch is respectively used for inputting a corresponding number or a certain function. The plastic films on the surfaces of the tact switches are aged and worn, even cracked, after long-term use. The contact point of the internal switch can also cause poor contact due to oxidation and coating abrasion, and particularly, the switch manufactured by the silver paste printing process has shorter service life, causes the fault of an instrument and is complex and troublesome in maintenance work.

The membrane switch keyboard described above is also commonly applied to panels of some in-water silicate analyzers, because the keyboard is usually designed with at least ten keys, such as up, down, left and right cursor moving keys, exit confirmation keys, and various function keys, to meet the requirements of software and liquid crystal displays. The keyboards are required to perform operations such as first-level menu entry, password input, second-level menu function selection, corresponding parameter setting and the like according to specifications, the operation is very complicated, 32 pages (English) are long due to menu selection setting of imported silicon watches of certain models, and field users are very headache. The liquid crystal display has low and not clear display contrast in many application environments, and particularly, the contrast is reduced very quickly after the liquid crystal display is used for a long time, so that the reading is very inconvenient.

Disclosure of Invention

The invention designs a brand-new water silicate analyzer panel and a special keyboard combined with the panel into a whole, the panel is extremely simple, only 4 touch switches are used singly or in pairs, and all operation functions of the novel silicate analyzer can be realized, including the functions of full scale (commonly called upper standard) calibration, zero point (commonly called subscript) calibration, numerical value inspection, conversion slope automatic adjustment confirmation and calibration program exit. The LED digital tube and various color LED lamps with extremely high display contrast and extremely long service life are still used, the smooth and flat panel is made of transparent black brown, and is black when not electrified, so that the LED digital tube has a mysterious feeling in vision, and the bright red digital tube has strong contrast with the black panel after being electrified, has obvious impact feeling and can be clearly displayed in a bright environment.

The invention is easy to use and easy to use, effectively solves the known difficult problem of difficult learning and memorization, and field users can learn the method for two minutes without comparing the specification to operate step by step. The touch switch of the invention is a special IC chip, relies on human body induction, has no defects of abrasion and oxidation, and has infinite service life. The transparent panel of cooperation dark brown, what can not see when not circular telegram, have white outline character to show after the circular telegram, 4 touch switch change respectively into 4 colours during the touch, are accompanied by the operation suggestion "drop" sound simultaneously, and it is very convenient to operate.